diff --git a/.gitignore b/.gitignore
index 61d2389..1bed8a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,3 +49,4 @@ ip.xdb
 /xiaomi/examples/05_ac_control/data/miot_config/*.dict
 *.dict
 /xiaomi/examples/*/data/
+/.codebuddy/memory
diff --git a/bridge/bridge.go b/bridge/bridge.go
index f2b789b..78da418 100644
--- a/bridge/bridge.go
+++ b/bridge/bridge.go
@@ -143,7 +143,7 @@ func newBridge(ctx context.Context, id int64, uuid string, auth xiaomi.AuthInfo,
 
 	for _, info := range devList {
 		d, createErr := devices.Create(client, info)
-		if createErr != nil {
+		if createErr != nil || d == nil {
 			continue
 		}
 		b.dv[info.DID] = d
@@ -179,7 +179,6 @@ func deviceTypeName(d interface{}) string {
 	case devices.Humidifier:       return devices.TypeHumidifier
 	case devices.Vacuum:           return devices.TypeVacuum
 	case devices.WaterHeater:      return devices.TypeWaterHeater
-	case devices.Thermostat:       return devices.TypeThermostat
 	case devices.TempHumiditySensor: return devices.TypeTempHumidSensor
 	case devices.OccupancySensor:  return devices.TypeOccupancySensor
 	case devices.Speaker:          return devices.TypeSpeaker
@@ -195,7 +194,7 @@ func (b *Bridge) AC(did string) (devices.AirConditioner, error) {
 	d, ok := b.dv[did]
 	if !ok { return nil, fmt.Errorf("bridge: device %s not found", did) }
 	ac, ok := d.(devices.AirConditioner)
-	if !ok { return nil, fmt.Errorf("bridge: device %s is not an AirConditioner", did) }
+	if !ok { return nil, fmt.Errorf("bridge: device %s is not an AirConditioner (got %T)", did, d) }
 	return ac, nil
 }
 func (b *Bridge) Light(did string) (devices.Light, error) {
@@ -247,13 +246,6 @@ func (b *Bridge) WaterHeater(did string) (devices.WaterHeater, error) {
 	if !ok { return nil, fmt.Errorf("bridge: device %s is not a WaterHeater", did) }
 	return wh, nil
 }
-func (b *Bridge) Thermostat(did string) (devices.Thermostat, error) {
-	d, ok := b.dv[did]
-	if !ok { return nil, fmt.Errorf("bridge: device %s not found", did) }
-	t, ok := d.(devices.Thermostat)
-	if !ok { return nil, fmt.Errorf("bridge: device %s is not a Thermostat", did) }
-	return t, nil
-}
 func (b *Bridge) TempHumidity(did string) (devices.TempHumiditySensor, error) {
 	d, ok := b.dv[did]
 	if !ok { return nil, fmt.Errorf("bridge: device %s not found", did) }
diff --git a/bridge/subscribe.go b/bridge/subscribe.go
index a679b8b..a3e0f56 100644
--- a/bridge/subscribe.go
+++ b/bridge/subscribe.go
@@ -55,8 +55,8 @@ func (b *Bridge) subscribeDevice(did string, d interface{}) {
 			b.fire(did, devType, ch, props)
 		})
 	case devices.Cover:
-		ctrl.OnPropsChanged(func(pos int) {
-			b.fire(did, devType, devices.PropPosition, pos)
+		ctrl.OnPropsChanged(func(props devices.CoverProps) {
+			b.fire(did, devType, devices.PropPosition, props)
 		})
 	case devices.Humidifier:
 		ctrl.OnPropsChanged(func(props devices.HumidifierProps, ch string) {
@@ -70,10 +70,6 @@ func (b *Bridge) subscribeDevice(did string, d interface{}) {
 		ctrl.OnPropsChanged(func(props devices.HeaterProps, ch string) {
 			b.fire(did, devType, ch, props)
 		})
-	case devices.Thermostat:
-		ctrl.OnPropsChanged(func(props devices.HeaterProps, ch string) {
-			b.fire(did, devType, ch, props)
-		})
 	case devices.TempHumiditySensor:
 		ctrl.OnPropsChanged(func(temp, hum float64) {
 			b.fire(did, devType, "temperature_humidity", map[string]float64{"temperature": temp, "humidity": hum})
@@ -164,13 +160,9 @@ func (b *Bridge) FetchAllStates(ctx context.Context) {
 			if s, err := ctrl.FetchProps(ctx); err == nil {
 				b.lgr.Debugf("[bridge] %d Heater: on=%v target=%.1f", b.id, s.On, s.TargetTemp)
 			}
-		case devices.Thermostat:
-			if s, err := ctrl.FetchProps(ctx); err == nil {
-				b.lgr.Debugf("[bridge] %d Thermostat: target=%.1f current=%.1f", b.id, s.TargetTemp, s.CurrentTemp)
-			}
 		case devices.Cover:
-			if pos, err := ctrl.FetchProps(ctx); err == nil {
-				b.lgr.Debugf("[bridge] %d Cover: pos=%d", b.id, pos)
+			if s, err := ctrl.FetchProps(ctx); err == nil {
+				b.lgr.Debugf("[bridge] %d Cover: pos=%d status=%d fault=%d", b.id, s.Position, s.Status, s.Fault)
 			}
 		case devices.TempHumiditySensor:
 			if t, h, err := ctrl.FetchProps(ctx); err == nil {
diff --git a/miot/examples/config.json b/miot/examples/config.json
new file mode 100644
index 0000000..404d69e
--- /dev/null
+++ b/miot/examples/config.json
@@ -0,0 +1,17 @@
+{
+  "auth_info": {
+    "access_token": "V3_R0Je3kB-S6Mf1O7kKDPm3EDvgHiwsJMze4mVkPG0rRGHYv0KQEUVUyNRJ-ittoSSOmbNxso1syxYrKjOIAGck6EatzRIJsyULI5maduCo-GUyfHu4A6ZYa8zWD6EXp6pmnLim8KT8i1mDbczyOsFTQhNxWY1tq4CM54xlVhFqQwGS65SVV1DhrXvW9XU3nPa",
+    "refresh_token": "R3_WZYXokg6Nnmj2Ceib_bcPtI2fr548hNrjCnK5aG_Lm8-8X5PJeK5SHpicsOBy4Z5cWP4672pviFfWORSsSCpH3tF7UXY8Xuib8uyQP4ppxRiPssybXb67VLFfEHa7raQYtVH_2NHkp53flOZKiRtcFHOX4HAZoC7_AKuIdfWcIa4P3k03XmQF1WG0Ccp4BMH12P7eOJBHyU3LScJbFqVLQ",
+    "mac_key": "0K_213_6BrQPCpmmfolHVZpTR1Y",
+    "expires_in": 259200,
+    "expires_ts": 1783011905
+  },
+  "uid": "2897121707",
+  "cloud_server": "cn",
+  "uuid": "84259d29c352cad945d1f5e3dab3d89b",
+  "redirect_url": "http://homeassistant.local:8123",
+  "language": "en",
+  "ctrl_mode": "auto",
+  "storage_path": "",
+  "nick_name": "Xiaomi"
+}
\ No newline at end of file
diff --git a/miot/examples/diag_control/main.go b/miot/examples/diag_control/main.go
new file mode 100644
index 0000000..f262743
--- /dev/null
+++ b/miot/examples/diag_control/main.go
@@ -0,0 +1,90 @@
+// Command diag_control 直接控制米家设备（纯 HTTP，不初始化 MQTT）。
+//
+// 控制序列：开空调 → 设温度 → 设模式 → 回读验证。
+// 与生产 SDK 同一云端链路（miotspec/prop/set），不占 MQTT client id。
+//
+// 用法：token/did 改下面常量，在生产环境 go run .（Linux 下 dataDir 填生产路径）。
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"xiaomihome/miot"
+)
+
+// ── 配置：按需修改 ──
+const (
+	accessToken = "V3_1GfW88WpawoKACRqwdYBb86In_I5e8r8stZdRPXI1PR4zZgIEm4cbjNwn0wYa6-ZQtIliJJerf-iI0W9Lx8t6fm7Ln16w0RVAmYO3e9XubJ0dK7D3eM_zBlCcVmQCla6Sx0BKQv_YXI9E2zXXopKaRjIUWyx0lb0YcE7oEopLuvfA0sEFoTohVKt543KnHJH" // 米家 OAuth access_token
+	targetDID   = "2188673403"          // 目标设备 did
+	dataDir     = "/home/ubuntu/server/zoSmartUser/data" // spec 缓存目录（生产 Linux）
+	// ──────────────────────
+)
+
+func main() {
+	if accessToken == "" {
+		fmt.Fprintln(os.Stderr, "请先填写 accessToken")
+		os.Exit(1)
+	}
+
+	httpClient, err := miot.NewMIoTHttpClient("cn", miot.OAUTH2_CLIENT_ID, accessToken)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "创建 HTTP 客户端失败: %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Printf("HTTP 客户端 OK（未连接 MQTT），设备 %s\n", targetDID)
+
+	// 读取当前状态（控制前）
+	readAll("控制前状态", httpClient)
+
+	// ── 控制序列 ──
+	set("开空调 siid=4/piid=1=true", 4, 1, true, httpClient)
+	set("设温度 siid=4/piid=2=26", 4, 2, float64(26), httpClient)
+	set("设模式 siid=2/piid=2=1(Cool)", 2, 2, float64(1), httpClient)
+	set("关空调 siid=4/piid=1=false", 4, 1, false, httpClient)
+
+	// 回读验证（控制后）
+	readAll("控制后状态", httpClient)
+}
+
+// set 写属性并回读验证。
+func set(label string, siid, piid int, value interface{}, c *miot.MIoTHttpClient) {
+	fmt.Printf("\n=== %s ===\n", label)
+	rs, err := c.SetProp([]miot.PropParam{{DID: targetDID, Siid: siid, Piid: piid, Value: value}})
+	if err != nil {
+		fmt.Printf("  写失败: %v\n", err)
+		return
+	}
+	for _, r := range rs {
+		fmt.Printf("  写返回 code=%d\n", r.Code)
+	}
+	// 回读
+	gr, err := c.GetProps([]miot.PropParam{{DID: targetDID, Siid: siid, Piid: piid}})
+	if err != nil {
+		fmt.Printf("  回读失败: %v\n", err)
+		return
+	}
+	if len(gr) > 0 {
+		fmt.Printf("  回读 siid=%d/piid=%d = %v\n", siid, piid, gr[0].Value)
+	}
+}
+
+// readAll 读取关键属性。
+func readAll(label string, c *miot.MIoTHttpClient) {
+	fmt.Printf("\n--- %s ---\n", label)
+	read := func(siid, piid int, name string) {
+		rs, err := c.GetProps([]miot.PropParam{{DID: targetDID, Siid: siid, Piid: piid}})
+		if err != nil {
+			fmt.Printf("  %-28s 错误: %v\n", name, err)
+			return
+		}
+		if len(rs) > 0 {
+			fmt.Printf("  %-28s = %v\n", name, rs[0].Value)
+		}
+	}
+	read(4, 1, "空调开关 siid=4/piid=1")
+	read(4, 2, "空调温度 siid=4/piid=2")
+	read(2, 2, "模式 siid=2/piid=2")
+	read(2, 4, "地暖温度 siid=2/piid=4")
+	read(5, 2, "环境温度 siid=5/piid=2")
+}
diff --git a/miot/examples/diag_device/main.go b/miot/examples/diag_device/main.go
new file mode 100644
index 0000000..a666855
--- /dev/null
+++ b/miot/examples/diag_device/main.go
@@ -0,0 +1,222 @@
+// Command diag_device 诊断指定米家设备的云端属性（纯 HTTP，不初始化 MQTT）。
+//
+// 用途：对比 SDK 读到属性值 vs 米家 App 显示，验证 siid/piid 是否正确、
+// 控制是否生效、设备连接类型等。可在生产环境旁路运行（不与生产 MQTT 冲突）。
+//
+// 用法：token/did 直接改下面常量，然后 go run . 即可。
+package main
+
+import (
+	"fmt"
+	"os"
+	"sort"
+	"strconv"
+	"strings"
+
+	"xiaomihome/miot"
+)
+
+// ── 配置：按需修改 ──
+const (
+	accessToken = "V3_1GfW88WpawoKACRqwdYBb86In_I5e8r8stZdRPXI1PR4zZgIEm4cbjNwn0wYa6-ZQtIliJJerf-iI0W9Lx8t6fm7Ln16w0RVAmYO3e9XubJ0dK7D3eM_zBlCcVmQCla6Sx0BKQv_YXI9E2zXXopKaRjIUWyx0lb0YcE7oEopLuvfA0sEFoTohVKt543KnHJH"                // 米家 OAuth access_token
+	targetDID   = "2188673403"      // 目标设备 did
+	homeID      = "619001787902"                // 家庭 ID（留空=全部家庭；先跑一遍看家庭列表再填）
+	dataDir     = "/home/ubuntu/server/zoSmartUser/data" // spec 缓存目录（生产 Linux 路径）
+	setTest     = "4,1,false|4,2,26" // 写属性测试："siid,piid,value"，多组用 | 分隔；留空跳过
+	// ──────────────────────
+)
+
+func main() {
+	if accessToken == "" {
+		fmt.Fprintln(os.Stderr, "请先在 main.go 顶部 const 里填写 accessToken")
+		os.Exit(1)
+	}
+
+	// 纯 HTTP 客户端（不连 MQTT，不占 mqtt client id）
+	httpClient, err := miot.NewMIoTHttpClient("cn", miot.OAUTH2_CLIENT_ID, accessToken)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "创建 HTTP 客户端失败: %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Println("HTTP 客户端 OK（未连接 MQTT）")
+
+	// 1. 按 did 精确拉设备信息（不依赖家庭列表）
+	devMap, err := httpClient.GetDevicesWithDIDs([]string{targetDID})
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "获取设备信息失败: %v\n", err)
+		os.Exit(1)
+	}
+	info, ok := devMap[targetDID]
+	if !ok {
+		fmt.Fprintf(os.Stderr, "设备 %s 未返回（共 %d 台）\n", targetDID, len(devMap))
+		os.Exit(1)
+	}
+	infoMap := info
+	fmt.Printf("\n=== 设备信息 %s ===\n", targetDID)
+	printDeviceInfo(infoMap)
+
+	urn, _ := infoMap["urn"].(string)
+	model, _ := infoMap["model"].(string)
+	fmt.Printf("URN: %s\nMODEL: %s\n", urn, model)
+
+	// 2. 解析 SPEC
+	parser := miot.NewMIoTSpecParser("en", miot.NewMIoTStorage(dataDir), dataDir+"/specs")
+	spec, err := parser.Parse(urn, model)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "SPEC 解析失败: %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Printf("\n=== SPEC 服务/属性（siid 布局） ===\n")
+	for _, svc := range spec.Services {
+		if svc == nil {
+			continue
+		}
+		fmt.Printf("svc[%d] %s\n", svc.IID, short(svc.Type))
+		names := make([]string, 0, len(svc.Properties))
+		for _, p := range svc.Properties {
+			if p == nil {
+				continue
+			}
+			names = append(names, fmt.Sprintf("%s(%d)", short(p.Type), p.PIID))
+		}
+		sort.Strings(names)
+		fmt.Printf("    %s\n", strings.Join(names, " "))
+	}
+
+	// 3. 批量读取全部可读属性
+	fmt.Printf("\n=== 读取全部可读属性 ===\n")
+	var params []miot.PropParam
+	keys := make([]string, 0)
+	for _, svc := range spec.Services {
+		if svc == nil {
+			continue
+		}
+		for _, p := range svc.Properties {
+			if p == nil {
+				continue
+			}
+			params = append(params, miot.PropParam{DID: targetDID, Siid: svc.IID, Piid: p.PIID})
+			keys = append(keys, fmt.Sprintf("%d.%d %s", svc.IID, p.PIID, short(p.Type)))
+		}
+	}
+	results, err := httpClient.GetProps(params)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "读取属性失败: %v\n", err)
+	} else {
+		for i, r := range results {
+			name := ""
+			if i < len(keys) {
+				name = keys[i]
+			}
+			fmt.Printf("  %-24s code=%d value=%v\n", name, r.Code, r.Value)
+		}
+	}
+
+	// 4. 三合一设备对比读取（空调/地暖双温度）
+	fmt.Printf("\n=== 温度属性对比（三合一设备） ===\n")
+	read := func(siid, piid int, label string) {
+		rs, err := httpClient.GetProps([]miot.PropParam{{DID: targetDID, Siid: siid, Piid: piid}})
+		if err != nil {
+			fmt.Printf("  %s: 错误 %v\n", label, err)
+			return
+		}
+		if len(rs) > 0 {
+			fmt.Printf("  %-28s code=%d value=%v\n", label, rs[0].Code, rs[0].Value)
+		}
+	}
+	read(2, 1, "siid=2/piid=1 on(空调)")
+	read(2, 2, "siid=2/piid=2 mode")
+	read(2, 4, "siid=2/piid=4 target-temperature")
+	read(4, 2, "siid=4/piid=2 target-temperature")
+	read(5, 2, "siid=5/piid=2 temperature(环境)")
+
+	// 5. 写属性测试（可选，多组用 | 分隔，如 "2,4,26|4,2,26"）
+	if setTest != "" {
+		for _, spec := range strings.Split(setTest, "|") {
+			doSetAndVerify(httpClient, strings.TrimSpace(spec))
+		}
+	}
+}
+
+// doSetAndVerify 执行一次写属性并回读验证。
+func doSetAndVerify(httpClient *miot.MIoTHttpClient, spec string) {
+	parts := strings.Split(spec, ",")
+	if len(parts) < 3 {
+		fmt.Fprintf(os.Stderr, "setTest 格式错误: %s (应为 siid,piid,value)\n", spec)
+		return
+	}
+	siid, _ := strconv.Atoi(strings.TrimSpace(parts[0]))
+	piid, _ := strconv.Atoi(strings.TrimSpace(parts[1]))
+	var val interface{}
+	if b, err := strconv.ParseBool(parts[2]); err == nil {
+		val = b
+	} else if f, err := strconv.ParseFloat(strings.TrimSpace(parts[2]), 64); err == nil {
+		val = f
+	} else {
+		val = strings.TrimSpace(parts[2])
+	}
+	fmt.Printf("\n=== 写属性 siid=%d piid=%d value=%v ===\n", siid, piid, val)
+	rs, err := httpClient.SetProp([]miot.PropParam{{DID: targetDID, Siid: siid, Piid: piid, Value: val}})
+	if err != nil {
+		fmt.Printf("写属性失败: %v\n", err)
+		return
+	}
+	for _, r := range rs {
+		fmt.Printf("  code=%d (0/1=成功，非0=失败)\n", r.Code)
+	}
+	// 写后立即回读验证（区分"写错服务" vs "云端假成功"）
+	fmt.Println("--- 写后回读 ---")
+	verify := func(vsiid, vpiid int, label string) {
+		vrs, err := httpClient.GetProps([]miot.PropParam{{DID: targetDID, Siid: vsiid, Piid: vpiid}})
+		if err != nil {
+			fmt.Printf("  %s: 错误 %v\n", label, err)
+			return
+		}
+		if len(vrs) > 0 {
+			fmt.Printf("  %-30s code=%d value=%v\n", label, vrs[0].Code, vrs[0].Value)
+		}
+	}
+	verify(siid, piid, "回读 siid=目标")
+	verify(2, 1, "siid=2/piid=1 on(地暖)")
+	verify(2, 2, "siid=2/piid=2 mode(地暖)")
+	verify(2, 4, "siid=2/piid=4 target-temperature(地暖)")
+	verify(4, 1, "siid=4/piid=1 on(空调)")
+	verify(4, 2, "siid=4/piid=2 target-temperature(空调)")
+}
+
+func printDeviceInfo(m map[string]interface{}) {
+	fields := []struct{ k, label string }{
+		{"name", "名称"}, {"model", "型号"}, {"connect_type", "connect_type"},
+		{"pid", "pid"}, {"online", "online"}, {"isOnline", "isOnline"},
+		{"rssi", "rssi"}, {"local_ip", "local_ip"}, {"parent_id", "parent_id"},
+		{"urn", "urn"},
+	}
+	for _, f := range fields {
+		if v, ok := m[f.k]; ok {
+			fmt.Printf("  %-12s = %v\n", f.label, v)
+		}
+	}
+}
+
+func short(urn string) string {
+	parts := strings.Split(urn, ":")
+	if len(parts) >= 4 {
+		return parts[3]
+	}
+	return urn
+}
+
+// toStrSlice 将 interface{}（[]interface{}）转为 []string。
+func toStrSlice(v interface{}) []string {
+	arr, ok := v.([]interface{})
+	if !ok {
+		return nil
+	}
+	out := make([]string, 0, len(arr))
+	for _, item := range arr {
+		if s, ok := item.(string); ok {
+			out = append(out, s)
+		}
+	}
+	return out
+}
diff --git a/miot/examples/diag_sdk/main.go b/miot/examples/diag_sdk/main.go
new file mode 100644
index 0000000..414e288
--- /dev/null
+++ b/miot/examples/diag_sdk/main.go
@@ -0,0 +1,130 @@
+// Command diag_sdk 用完整 SDK 封装（xiaomi.NewClient + devices.Create）重现生产控制路径。
+//
+// 目的：验证 SDK 封装层解析出的属性绑定（on/target-temperature 绑到哪个 siid）。
+// 与生产同链路：ac.TurnOn / ac.SetTargetTemp → SetProp(绑定siid) → 云端。
+//
+// 注意：会初始化 MQTT，但用自定义 uuid（client id 唯一，不和生产进程冲突）。
+// 在开发机运行；dataDir 指向与生产相同的 spec 缓存（拷一份或指定生产目录）。
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"time"
+
+	"xiaomihome/xiaomi"
+	"xiaomihome/xiaomi/devices"
+)
+
+// ── 配置：按需修改 ──
+const (
+	accessToken = "V3_1GfW88WpawoKACRqwdYBb86In_I5e8r8stZdRPXI1PR4zZgIEm4cbjNwn0wYa6-ZQtIliJJerf-iI0W9Lx8t6fm7Ln16w0RVAmYO3e9XubJ0dK7D3eM_zBlCcVmQCla6Sx0BKQv_YXI9E2zXXopKaRjIUWyx0lb0YcE7oEopLuvfA0sEFoTohVKt543KnHJH" // 米家 OAuth access_token
+	uid         = "2897121707"        // 小米帐号 UID
+	homeID      = int64(619001787902) // 家庭 ID
+	targetDID   = "2188673403"        // 目标设备 did
+	dataDir     = "D:/xiaomihome/go-xiaomihome/miot/examples/diag_sdk/data" // 本 demo 自己的 spec 缓存目录
+	// ──────────────────────
+)
+
+func main() {
+	ctx := context.Background()
+
+	cfg := xiaomi.Config{
+		AuthInfo: xiaomi.AuthInfo{AccessToken: accessToken},
+		UUID:     "diag-sdk-" + time.Now().Format("150405"), // 唯一 uuid，不占生产 client id
+		UID:      uid,
+		DataDir:  dataDir,
+		HomeIDs:  []int64{homeID},
+	}
+	client, err := xiaomi.NewClient(ctx, cfg)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "NewClient 失败: %v\n", err)
+		os.Exit(1)
+	}
+	defer client.Close()
+	fmt.Println("SDK 客户端 OK")
+
+	info, err := client.GetDevice(ctx, targetDID)
+	if err != nil || info == nil {
+		fmt.Fprintf(os.Stderr, "获取设备 %s 失败: %v\n", targetDID, err)
+		os.Exit(1)
+	}
+	fmt.Printf("设备: %s (%s)\nURN: %s\n", info.Name, info.Model, info.URN)
+
+	dev, err := devices.NewDevice(client, info)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "创建设备控制失败: %v\n", err)
+		os.Exit(1)
+	}
+	if dev == nil {
+		fmt.Fprintf(os.Stderr, "设备类型不支持\n")
+		os.Exit(1)
+	}
+
+	ac, ok := dev.(devices.AirConditioner)
+	if !ok {
+		fmt.Fprintf(os.Stderr, "设备不是 AirConditioner（got %T）\n", dev)
+		os.Exit(1)
+	}
+	fmt.Println("AirConditioner 封装 OK")
+
+	// 读取当前状态（封装层）
+	if props, err := ac.FetchProps(ctx); err != nil {
+		fmt.Printf("FetchProps 失败: %v\n", err)
+	} else {
+		fmt.Printf("封装层状态: on=%v mode=%s target=%.0f current=%.0f fan=%s hum=%d\n",
+			props.On, props.Mode, props.TargetTemperature, props.Temperature,
+			props.FanLevel, props.CurrentHumidity)
+	}
+
+	// 控制（观察日志里 SetProp 写的 siid）
+	fmt.Println("\n=== 控制序列（看 SetProp 日志的 siid） ===")
+	if err := ac.TurnOn(ctx); err != nil {
+		fmt.Printf("TurnOn 失败: %v\n", err)
+	} else {
+		fmt.Println("TurnOn OK")
+	}
+	time.Sleep(500 * time.Millisecond)
+
+	if err := ac.SetTargetTemp(ctx, 26); err != nil {
+		fmt.Printf("SetTargetTemp 失败: %v\n", err)
+	} else {
+		fmt.Println("SetTargetTemp(26) OK")
+	}
+	time.Sleep(500 * time.Millisecond)
+
+	if ac.HasFanSpeed() {
+		if err := ac.SetFanSpeed(ctx, "medium"); err != nil {
+			fmt.Printf("SetFanSpeed 失败: %v\n", err)
+		} else {
+			fmt.Println("SetFanSpeed(medium) OK")
+		}
+	} else {
+		fmt.Println("HasFanSpeed = false")
+	}
+	time.Sleep(500 * time.Millisecond)
+
+	if err := ac.SetMode(ctx, "cool"); err != nil {
+		fmt.Printf("SetMode 失败: %v\n", err)
+	} else {
+		fmt.Println("SetMode(cool) OK")
+	}
+	time.Sleep(500 * time.Millisecond)
+
+	if err := ac.TurnOff(ctx); err != nil {
+		fmt.Printf("TurnOff 失败: %v\n", err)
+	} else {
+		fmt.Println("TurnOff OK")
+	}
+	time.Sleep(500 * time.Millisecond)
+
+	// 控制后回读
+	if props, err := ac.FetchProps(ctx); err != nil {
+		fmt.Printf("FetchProps 失败: %v\n", err)
+	} else {
+		fmt.Printf("控制后状态: on=%v mode=%s target=%.0f current=%.0f fan=%s hum=%d\n",
+			props.On, props.Mode, props.TargetTemperature, props.Temperature,
+			props.FanLevel, props.CurrentHumidity)
+	}
+}
diff --git a/miot/miot_client.go b/miot/miot_client.go
index 33f18e3..458c68b 100644
--- a/miot/miot_client.go
+++ b/miot/miot_client.go
@@ -156,7 +156,7 @@ func (c *MIoTClient) Init() error {
 			if et, ok := authInfo["expires_ts"].(float64); ok {
 				c.entryData["expires_ts"] = et
 			}
-			c.lgr.Infof("[MIoTClient] Loaded token from storage\n")
+			c.lgr.Debugf("[MIoTClient] Loaded token from storage\n")
 		} else if accessToken != "" {
 			// First run: write entryData token to storage
 			expiresTS := float64(time.Now().Unix()) + 3600*24*30 // default 30 days
@@ -168,7 +168,7 @@ func (c *MIoTClient) Init() error {
 				"refresh_token": refreshToken,
 				"expires_ts":    expiresTS,
 			}, true)
-			c.lgr.Infof("[MIoTClient] Saved initial token to storage\n")
+			c.lgr.Debugf("[MIoTClient] Saved initial token to storage\n")
 		}
 	}
 
@@ -187,7 +187,7 @@ func (c *MIoTClient) Init() error {
 		oauthRedirectURL, _ := c.entryData["oauth_redirect_url"].(string)
 		uuid, _ := c.entryData["uuid"].(string)
 		c.oauth = NewMIoTOauthClient(OAUTH2_CLIENT_ID, oauthRedirectURL, c.cloudServer, uuid)
-		c.lgr.Infof("[MIoTClient] OAuth client initialized\n")
+		c.lgr.Debugf("[MIoTClient] OAuth client initialized\n")
 	}
 
 	// 3.2 Initialize Cert client
@@ -197,7 +197,7 @@ func (c *MIoTClient) Init() error {
 	} else {
 		c.cert = cert
 		c.cert.VerifyCACert()
-		c.lgr.Infof("[MIoTClient] Cert client initialized\n")
+		c.lgr.Debugf("[MIoTClient] Cert client initialized\n")
 	}
 
 	// 4. Initialize HTTP client (use token from storage if available)
@@ -207,7 +207,7 @@ func (c *MIoTClient) Init() error {
 			c.lgr.Warnf("[MIoTClient] Warning: failed to create HTTP client: %v\n", err)
 		} else {
 			c.http = httpClient
-			c.lgr.Infof("[MIoTClient] HTTP client created\n")
+			c.lgr.Debugf("[MIoTClient] HTTP client created\n")
 		}
 	}
 
@@ -225,7 +225,7 @@ func (c *MIoTClient) Init() error {
 			if err := mips.Connect(); err != nil {
 				c.lgr.Warnf("[MIoTClient] Warning: MIPS cloud connect failed: %v\n", err)
 			} else {
-				c.lgr.Infof("[MIoTClient] MIPS cloud connected\n")
+				c.lgr.Debugf("[MIoTClient] MIPS cloud connected\n")
 			}
 			c.mu.Lock()
 		}
@@ -239,7 +239,7 @@ func (c *MIoTClient) Init() error {
 			nw.SubNetworkStatus(key, c.onNetworkStatusChanged)
 			status := nw.GetNetworkStatus()
 			c.onNetworkStatusChanged(status)
-			c.lgr.Infof("[MIoTClient] Network status subscribed (online=%v)\n", status)
+			c.lgr.Debugf("[MIoTClient] Network status subscribed (online=%v)\n", status)
 		}
 	}
 
@@ -258,12 +258,12 @@ func (c *MIoTClient) Init() error {
 						groupID, _ := info["group_id"].(string)
 						if groupID != "" {
 							svc.SubServiceChange(key, groupID, c.onMipsServiceStateChange)
-							c.lgr.Infof("[MIoTClient] mDNS service subscribed: home=%s, group=%s\n", homeID, groupID)
+							c.lgr.Debugf("[MIoTClient] mDNS service subscribed: home=%s, group=%s\n", homeID, groupID)
 
 							// Check if service already discovered
 							serviceData := svc.GetServices(groupID)
 							if sd, exists := serviceData[groupID]; exists && sd.validService() {
-								c.lgr.Infof("[MIoTClient] Central mips service scanned: %s, %v\n", homeID, sd)
+								c.lgr.Debugf("[MIoTClient] Central mips service scanned: %s, %v\n", homeID, sd)
 								mips := NewMipsLocalClient(
 									getVirtualDID(c.entryData),
 									sd.Addresses[0],
@@ -294,7 +294,7 @@ func (c *MIoTClient) Init() error {
 				if lan.InitDone() {
 					c.onMiotLanStateChange(true)
 				}
-				c.lgr.Infof("[MIoTClient] LAN control initialized\n")
+				c.lgr.Debugf("[MIoTClient] LAN control initialized\n")
 			}
 		}
 	} else {
@@ -324,7 +324,7 @@ func (c *MIoTClient) Init() error {
 	}
 	c.i18n = NewMIoTI18n(lang)
 	c.i18n.Init()
-	c.lgr.Infof("[MIoTClient] i18n initialized (lang=%s)\n", lang)
+	c.lgr.Debugf("[MIoTClient] i18n initialized (lang=%s)\n", lang)
 
 	c.lgr.Infof("[MIoTClient] Initialized\n")
 	return nil
@@ -358,7 +358,7 @@ func (c *MIoTClient) Deinit() error {
 	if c.mipsCloud != nil {
 		c.mipsCloud.UnsubState(key)
 		c.mipsCloud.Disconnect()
-		c.lgr.Infof("[MIoTClient] MIPS cloud disconnected\n")
+		c.lgr.Debugf("[MIoTClient] MIPS cloud disconnected\n")
 	}
 
 	// 4. Cancel refresh cloud devices timer
@@ -493,7 +493,7 @@ func (c *MIoTClient) loadCacheDevice() error {
 			c.deviceListCache[did] = infoMap
 		}
 	}
-	c.lgr.Infof("[MIoTClient] Loaded %d devices from cache\n", len(deviceList))
+	c.lgr.Debugf("[MIoTClient] Loaded %d devices from cache\n", len(deviceList))
 
 	return nil
 }
@@ -647,7 +647,7 @@ func (c *MIoTClient) RefreshAuthInfo() (map[string]interface{}, error) {
 		c.mipsCloud.UpdateAccessToken(ac)
 	}
 
-	c.lgr.Infof("[MIoTClient] RefreshAuthInfo: token refreshed\n")
+	c.lgr.Debugf("[MIoTClient] RefreshAuthInfo: token refreshed\n")
 	return result, nil
 }
 
@@ -690,7 +690,7 @@ func (c *MIoTClient) refreshUserCert() {
 			nextDelay = 60
 		}
 		c.RequestRefreshUserCert(nextDelay)
-		c.lgr.Infof("[MIoTClient] Cert still valid for %ds, recheck in %ds\n", remainSec, nextDelay)
+		c.lgr.Debugf("[MIoTClient] Cert still valid for %ds, recheck in %ds\n", remainSec, nextDelay)
 		return
 	}
 
@@ -720,7 +720,7 @@ func (c *MIoTClient) refreshUserCert() {
 	}
 
 	// Save cert
-	if err := c.cert.SaveUserCert(certPEM); err != nil {
+	if err = c.cert.SaveUserCert(certPEM); err != nil {
 		c.lgr.Errorf("[MIoTClient] Cert refresh: save cert FAILED: %v\n", err)
 		return
 	}
@@ -783,13 +783,13 @@ func (c *MIoTClient) ShowCentralStateChangedNotify(connected bool) {
 // Aligns with Python: __on_mips_cloud_state_changed.
 func (c *MIoTClient) onMipsCloudStateChanged(key string, connected bool) {
 	if connected {
-		c.lgr.Infof("[MIoTClient] MIPS cloud connected\n")
+		c.lgr.Debugf("[MIoTClient] MIPS cloud connected\n")
 		// Refresh devices on reconnect
 		c.ScheduleRefreshDevices(RefreshCloudDevicesDelay * time.Millisecond)
 		return
 	}
 
-	c.lgr.Infof("[MIoTClient] MIPS cloud disconnected\n")
+	c.lgr.Debugf("[MIoTClient] MIPS cloud disconnected\n")
 
 	// Disconnect: mark all cloud devices offline
 	c.deviceListMu.Lock()
@@ -821,7 +821,7 @@ func (c *MIoTClient) onMipsCloudStateChanged(key string, connected bool) {
 // onNetworkStatusChanged handles network connectivity changes.
 // Aligns with Python: __on_network_status_changed.
 func (c *MIoTClient) onNetworkStatusChanged(status bool) {
-	c.lgr.Infof("[MIoTClient] Network status changed: online=%v\n", status)
+	c.lgr.Debugf("[MIoTClient] Network status changed: online=%v\n", status)
 	if status {
 		// Network is back; trigger device refresh and reconnect MIPS
 		if c.mipsCloud != nil && !c.mipsCloud.IsConnected() {
@@ -834,15 +834,15 @@ func (c *MIoTClient) onNetworkStatusChanged(status bool) {
 // onMipsServiceStateChange handles mDNS service discoveries for central gateways.
 // Aligns with Python: __on_mips_service_state_change.
 func (c *MIoTClient) onMipsServiceStateChange(groupID string, state MipsServiceState, data map[string]interface{}) {
-	c.lgr.Infof("[MIoTClient] MIPS service change: group=%s, state=%s\n", groupID, state)
+	c.lgr.Debugf("[MIoTClient] MIPS service change: group=%s, state=%s\n", groupID, state)
 
 	virtualDID := getVirtualDID(c.entryData)
 	if virtualDID == "" {
-		c.lgr.Infof("[MIoTClient] MIPS service: missing virtual_did, skip\n")
+		c.lgr.Debugf("[MIoTClient] MIPS service: missing virtual_did, skip\n")
 		return
 	}
 	if c.cert == nil {
-		c.lgr.Infof("[MIoTClient] MIPS service: cert not initialized, skip\n")
+		c.lgr.Debugf("[MIoTClient] MIPS service: cert not initialized, skip\n")
 		return
 	}
 
@@ -851,7 +851,7 @@ func (c *MIoTClient) onMipsServiceStateChange(groupID string, state MipsServiceS
 		// Create new MipsLocalClient
 		host, _ := data["addresses"].([]interface{})
 		if len(host) == 0 {
-			c.lgr.Infof("[MIoTClient] MIPS service: no addresses for %s\n", groupID)
+			c.lgr.Debugf("[MIoTClient] MIPS service: no addresses for %s\n", groupID)
 			return
 		}
 		hostStr, _ := host[0].(string)
@@ -872,7 +872,7 @@ func (c *MIoTClient) onMipsServiceStateChange(groupID string, state MipsServiceS
 		mips.SubState(groupID, c.onMipsLocalStateChanged)
 		mips.Connect()
 		c.mipsLocal[groupID] = mips
-		c.lgr.Infof("[MIoTClient] MIPS local client created: %s @ %s:%d\n", groupID, hostStr, int(port))
+		c.lgr.Debugf("[MIoTClient] MIPS local client created: %s @ %s:%d\n", groupID, hostStr, int(port))
 
 	case MipsServiceUpdated:
 		// Disconnect old, connect new
@@ -902,7 +902,7 @@ func (c *MIoTClient) onMipsServiceStateChange(groupID string, state MipsServiceS
 		mips.SubState(groupID, c.onMipsLocalStateChanged)
 		mips.Connect()
 		c.mipsLocal[groupID] = mips
-		c.lgr.Infof("[MIoTClient] MIPS local client updated: %s @ %s:%d\n", groupID, hostStr, int(port))
+		c.lgr.Debugf("[MIoTClient] MIPS local client updated: %s @ %s:%d\n", groupID, hostStr, int(port))
 
 	case MipsServiceRemoved:
 		if mips, exists := c.mipsLocal[groupID]; exists {
@@ -910,7 +910,7 @@ func (c *MIoTClient) onMipsServiceStateChange(groupID string, state MipsServiceS
 			mips.UnsubState(groupID)
 			mips.Disconnect()
 			delete(c.mipsLocal, groupID)
-			c.lgr.Infof("[MIoTClient] MIPS local client removed: %s\n", groupID)
+			c.lgr.Debugf("[MIoTClient] MIPS local client removed: %s\n", groupID)
 		}
 	}
 }
@@ -919,7 +919,7 @@ func (c *MIoTClient) onMipsServiceStateChange(groupID string, state MipsServiceS
 // Aligns with Python: __on_mips_local_state_changed.
 // key is the groupID of the gateway.
 func (c *MIoTClient) onMipsLocalStateChanged(key string, connected bool) {
-	c.lgr.Infof("[MIoTClient] MIPS local state changed: group=%s, connected=%v\n", key, connected)
+	c.lgr.Debugf("[MIoTClient] MIPS local state changed: group=%s, connected=%v\n", key, connected)
 
 	if connected {
 		// Reconnect: pull gateway device list
@@ -966,7 +966,7 @@ func (c *MIoTClient) onMipsLocalStateChanged(key string, connected bool) {
 // onMiotLanStateChange handles LAN controller state transitions.
 // Aligns with Python: __on_miot_lan_state_change.
 func (c *MIoTClient) onMiotLanStateChange(initialized bool) {
-	c.lgr.Infof("[MIoTClient] LAN state changed: initialized=%v\n", initialized)
+	c.lgr.Debugf("[MIoTClient] LAN state changed: initialized=%v\n", initialized)
 	if initialized {
 		c.deviceListMu.Lock()
 		lan, ok := c.miotLan.(*MIoTLan)
@@ -1026,7 +1026,7 @@ func (c *MIoTClient) onLanDeviceStateChanged(did string, state map[string]interf
 // Aligns with Python: __on_gw_device_list_changed.
 // Called when a MipsLocalClient reports that its device list has changed.
 func (c *MIoTClient) onGWDeviceListChanged() {
-	c.lgr.Infof("[MIoTClient] GW device list changed\n")
+	c.lgr.Debugf("[MIoTClient] GW device list changed\n")
 
 	for groupID, mips := range c.mipsLocal {
 		if mips == nil || !mips.IsConnected() {
@@ -1090,7 +1090,7 @@ func (c *MIoTClient) updateDevicesFromGW(groupID string, devices map[string]inte
 	}
 
 	if changed {
-		c.lgr.Infof("[MIoTClient] GW devices updated: group=%s, count=%d\n", groupID, len(devices))
+		c.lgr.Debugf("[MIoTClient] GW devices updated: group=%s, count=%d\n", groupID, len(devices))
 	}
 }
 
diff --git a/miot/miot_client_api.go b/miot/miot_client_api.go
index ff6f16d..3106ea6 100644
--- a/miot/miot_client_api.go
+++ b/miot/miot_client_api.go
@@ -31,8 +31,26 @@ func (c *MIoTClient) SetProp(did string, siid, piid int, value interface{}) erro
 		return err
 	}
 
+	// Aligns with Python: 空 result 视为失败（Python 会 raise device_exec_error）
+	if len(results) == 0 {
+		return fmt.Errorf("set property failed: empty result (device may be offline)")
+	}
+
 	// code=0 或 code=1 均视为成功（0=读取成功，1=设置成功）
-	if len(results) > 0 && results[0].Code != 0 && results[0].Code != 1 {
+	if results[0].Code != 0 && results[0].Code != 1 {
+		// 设备移除或离线：刷新设备列表（Aligns with Python）
+		if results[0].Code == -704010000 || results[0].Code == -704042011 {
+			c.lgr.Errorf("[MIoTClient] device may be removed or offline, %s\n", did)
+			if devs, rerr := c.http.GetDevices(nil); rerr == nil {
+				c.deviceListMu.Lock()
+				for k := range c.deviceListCloud {
+					if _, ok := devs[k]; !ok {
+						delete(c.deviceListCloud, k)
+					}
+				}
+				c.deviceListMu.Unlock()
+			}
+		}
 		return fmt.Errorf("set property failed, code=%d", results[0].Code)
 	}
 
diff --git a/miot/miot_client_sub.go b/miot/miot_client_sub.go
index a134b53..f80343f 100644
--- a/miot/miot_client_sub.go
+++ b/miot/miot_client_sub.go
@@ -155,7 +155,7 @@ func (c *MIoTClient) updateDeviceMsgSub(did string) {
 	// Update subscription source
 	c.subSourceList[did] = newSource
 
-	c.lgr.Infof("[MIoTClient] updateDeviceMsgSub: %s source %s → %s (gw=%v/%v, lan=%v/%v, cloud=%v)\n",
+	c.lgr.Debugf("[MIoTClient] updateDeviceMsgSub: %s source %s → %s (gw=%v/%v, lan=%v/%v, cloud=%v)\n",
 		did, oldSource, newSource, gwOnline, gwPushAvailable, lanOnline, lanPushAvailable, cloudOnline)
 }
 
diff --git a/miot/miot_cloud.go b/miot/miot_cloud.go
index 4ca0da0..3ce1f2c 100644
--- a/miot/miot_cloud.go
+++ b/miot/miot_cloud.go
@@ -477,7 +477,7 @@ func (c *MIoTHttpClient) getDevRoomPage(maxID string) (map[string]map[string]int
 	}
 
 	// Check for more pages
-	hasMore, _ := result["has_more"].(bool)
+	hasMore := parseBool(result["has_more"])
 	nextMaxID, _ := result["max_id"].(string)
 	if hasMore && nextMaxID != "" {
 		nextList, err := c.getDevRoomPage(nextMaxID)
@@ -582,42 +582,43 @@ func (c *MIoTHttpClient) GetHomeInfos() (map[string]interface{}, error) {
 	}
 
 	// Handle pagination
-	hasMore, _ := result["has_more"].(bool)
+	hasMore := parseBool(result["has_more"])
 	maxID, _ := result["max_id"].(string)
 	if hasMore && maxID != "" {
 		moreList, err := c.getDevRoomPage(maxID)
-		if err == nil {
-			for _, deviceSource := range []string{"homelist", "share_home_list"} {
-				for hidStr, info := range moreList {
-					if _, exists := homeInfos[deviceSource][hidStr]; !exists {
-						continue
-					}
-					h, _ := homeInfos[deviceSource][hidStr].(map[string]interface{})
-					if h == nil {
-						continue
-					}
-					h["dids"] = append(toStringSlice(h["dids"]), toStringSlice(info["dids"])...)
+		if err != nil {
+			return nil, err
+		}
+		for _, deviceSource := range []string{"homelist", "share_home_list"} {
+			for hidStr, info := range moreList {
+				if _, exists := homeInfos[deviceSource][hidStr]; !exists {
+					continue
+				}
+				h, _ := homeInfos[deviceSource][hidStr].(map[string]interface{})
+				if h == nil {
+					continue
+				}
+				h["dids"] = append(toStringSlice(h["dids"]), toStringSlice(info["dids"])...)
 
-					for rid, rinfo := range info["room_info"].(map[string]map[string]interface{}) {
-						hRoomInfo, _ := h["room_info"].(map[string]interface{})
-						if hRoomInfo == nil {
-							hRoomInfo = make(map[string]interface{})
-							h["room_info"] = hRoomInfo
-						}
-						if hRoomInfo[rid] == nil {
-							hRoomInfo[rid] = map[string]interface{}{
-								"room_id":   rid,
-								"room_name": "",
-								"dids":      []string{},
-							}
-						}
-						hrEntry, _ := hRoomInfo[rid].(map[string]interface{})
-						if hrEntry != nil {
-							hrEntry["dids"] = append(
-								toStringSlice(hrEntry["dids"]),
-								toStringSlice(rinfo["dids"])...)
+				for rid, rinfo := range info["room_info"].(map[string]map[string]interface{}) {
+					hRoomInfo, _ := h["room_info"].(map[string]interface{})
+					if hRoomInfo == nil {
+						hRoomInfo = make(map[string]interface{})
+						h["room_info"] = hRoomInfo
+					}
+					if hRoomInfo[rid] == nil {
+						hRoomInfo[rid] = map[string]interface{}{
+							"room_id":   rid,
+							"room_name": "",
+							"dids":      []string{},
 						}
 					}
+					hrEntry, _ := hRoomInfo[rid].(map[string]interface{})
+					if hrEntry != nil {
+						hrEntry["dids"] = append(
+							toStringSlice(hrEntry["dids"]),
+							toStringSlice(rinfo["dids"])...)
+					}
 				}
 			}
 		}
@@ -725,13 +726,14 @@ func (c *MIoTHttpClient) getDeviceListPage(dids []string, startDID string) (map[
 
 	// Handle pagination
 	nextStartDID, _ := result["next_start_did"].(string)
-	hasMore, _ := result["has_more"].(bool)
+	hasMore := parseBool(result["has_more"])
 	if hasMore && nextStartDID != "" {
 		nextInfos, err := c.getDeviceListPage(dids, nextStartDID)
-		if err == nil {
-			for k, v := range nextInfos {
-				deviceInfos[k] = v
-			}
+		if err != nil {
+			return nil, err
+		}
+		for k, v := range nextInfos {
+			deviceInfos[k] = v
 		}
 	}
 
@@ -1196,3 +1198,22 @@ func containsString(slice []string, val string) bool {
 	}
 	return false
 }
+
+// parseBool 兼容云端多种布尔表达（bool / 0|1 / "true"|"false"）。
+func parseBool(v interface{}) bool {
+	switch n := v.(type) {
+	case bool:
+		return n
+	case float64:
+		return n != 0
+	case float32:
+		return n != 0
+	case int:
+		return n != 0
+	case int64:
+		return n != 0
+	case string:
+		return n == "true" || n == "1"
+	}
+	return false
+}
diff --git a/miot/miot_errors.go b/miot/miot_errors.go
new file mode 100644
index 0000000..6266b83
--- /dev/null
+++ b/miot/miot_errors.go
@@ -0,0 +1,142 @@
+package miot
+
+// MIoT 云端错误码
+// 来源: https://iot.mi.com/v2/new/doc/help-support/faq/spec/error-code
+const (
+	ErrCodeOK                  = -702000000 // OK
+	ErrCodeAccept              = -702010000 // accept
+	ErrCodeProcessing          = -702022036 // 操作正在处理中
+	ErrCodeBadRequest          = -704000000 // 错误的请求
+	ErrCodeBadBody             = -704000001 // 错误的请求体
+	ErrCodeScheduleOnlyMi      = -704001000 // 定时只支持小米设备
+	ErrCodeDeviceError         = -704002000 // 设备错误（通用）
+	ErrCodeUnauthenticated     = -704010000 // 未认证
+	ErrCodeTokenExpired        = -704012901 // token 不存在或过期
+	ErrCodeTokenInvalid        = -704012902 // token 非法
+	ErrCodeAuthExpired         = -704012903 // 授权过期
+	ErrCodeNotAuthToXiaoAi     = -704012904 // 设备未授权控制能力给小爱
+	ErrCodeDeviceUnbound       = -704012905 // 设备未绑定
+	ErrCodeAuthFailed          = -704012906 // 认证失败
+	ErrCodeIRNotSupported      = -704013101 // 红外设备不支持此操作
+	ErrCodePropertyNotRead     = -704030013 // 属性不可读
+	ErrCodePropertyNotWrite    = -704030023 // 属性不可写
+	ErrCodePropertyNotNotify   = -704030033 // 属性不可上报
+	ErrCodeTooFrequent         = -704030992 // 请求过于频繁
+	ErrCodeServiceNotFound     = -704040002 // 服务不存在
+	ErrCodePropertyNotFound    = -704040003 // 属性不存在
+	ErrCodeEventNotFound       = -704040004 // 事件不存在
+	ErrCodeMethodNotFound      = -704040005 // 方法不存在
+	ErrCodeFeatureOffline      = -704040999 // 功能未上线
+	ErrCodeCloudNotFound       = -704041007 // cloud not found
+	ErrCodeDeviceNotFound2     = -704042001 // 未找到设备
+	ErrCodeSceneNotFound       = -704042009 // 未找到场景
+	ErrCodeSceneError          = -704042010 // 触发场景异常
+	ErrCodeDeviceOffline       = -704042011 // 设备离线
+	ErrCodeSceneNoPermission   = -704042012 // 场景无权限
+	ErrCodeSpecNotFound        = -704044006 // 未找到功能定义
+	ErrCodeCannotExecute       = -704053100 // 无法执行此操作
+	ErrCodeCameraSleeping      = -704053101 // 摄像机休眠中
+	ErrCodeTimeout             = -704083036 // 操作超时
+	ErrCodeDeviceNotFound      = -704090001 // 未找到设备
+	ErrCodeInvalidID           = -704220008 // 非法的 ID
+	ErrCodeInvalidUID          = -704220009 // 非法的 uid
+	ErrCodeInvalidSubID        = -704220010 // 非法的订阅 ID
+	ErrCodeActionParamCount    = -704220025 // 方法输入参数数量不匹配
+	ErrCodeActionParamError    = -704220035 // 方法输入参数错误
+	ErrCodeInvalidPropValue    = -704220043 // 属性值不正确
+	ErrCodeEventParamCount     = -704222034 // 事件参数数量不匹配
+	ErrCodeActionOutParamError = -704222035 // 方法输出参数错误
+	ErrCodeOpenPlatformError   = -705001000 // 开放平台服务器内部错误
+	ErrCodeSpecServerError     = -705004000 // MIoT Spec 服务器内部错误
+	ErrCodeSubIDEncodeError    = -705005000 // 订阅 ID 编码错误
+	ErrCodeNotifyError         = -705006000 // notify error
+	ErrCodeReadPropFailed      = -705201013 // 读属性失败
+	ErrCodeActionFailed        = -705201015 // 方法执行失败
+	ErrCodeWritePropFailed     = -705201023 // 写属性失败
+	ErrCodeReportPropFailed    = -705201033 // 上报属性失败
+	ErrCodeInvalidSpec         = -705204006 // 非法的功能定义
+	ErrCodeInstanceNotLoaded   = -705204007 // 实例未加载
+	ErrCodeRemoteServiceError  = -706010002 // 远程服务异常
+	ErrCodeMIoTError           = -706010004 // MIoT 错误
+	ErrCodePropCacheFailed     = -706010005 // 属性缓存失败
+	ErrCodeThirdPartyError     = -706012000 // 三方云服务器内部错误
+	ErrCodeThirdReadPropFailed = -706012013 // 三方云读属性失败
+	ErrCodeThirdActionFailed   = -706012015 // 三方云方法执行失败
+	ErrCodeThirdWritePropFailed = -706012023 // 三方云写属性失败
+	ErrCodeThirdReportPropFailed = -706012033 // 三方云上报属性失败
+	ErrCodeThirdSubFailed      = -706012043 // 三方云订阅失败
+)
+
+// errDescriptions 错误码说明
+var errDescriptions = map[int]string{
+	ErrCodeOK:                  "OK",
+	ErrCodeAccept:              "accept",
+	ErrCodeProcessing:          "操作正在处理中",
+	ErrCodeBadRequest:          "错误的请求",
+	ErrCodeBadBody:             "错误的请求体",
+	ErrCodeScheduleOnlyMi:      "定时只支持小米设备",
+	ErrCodeDeviceError:         "设备错误（通用）",
+	ErrCodeUnauthenticated:     "未认证",
+	ErrCodeTokenExpired:        "token 不存在或过期",
+	ErrCodeTokenInvalid:        "token 非法",
+	ErrCodeAuthExpired:         "授权过期",
+	ErrCodeNotAuthToXiaoAi:     "设备未授权控制能力给小爱",
+	ErrCodeDeviceUnbound:       "设备未绑定",
+	ErrCodeAuthFailed:          "认证失败",
+	ErrCodeIRNotSupported:      "红外设备不支持此操作",
+	ErrCodePropertyNotRead:     "属性不可读",
+	ErrCodePropertyNotWrite:    "属性不可写",
+	ErrCodePropertyNotNotify:   "属性不可上报",
+	ErrCodeTooFrequent:         "请求过于频繁",
+	ErrCodeServiceNotFound:     "服务不存在",
+	ErrCodePropertyNotFound:    "属性不存在",
+	ErrCodeEventNotFound:       "事件不存在",
+	ErrCodeMethodNotFound:      "方法不存在",
+	ErrCodeFeatureOffline:      "功能未上线",
+	ErrCodeCloudNotFound:       "cloud not found",
+	ErrCodeDeviceNotFound2:     "未找到设备",
+	ErrCodeSceneNotFound:       "未找到场景",
+	ErrCodeSceneError:          "触发场景异常",
+	ErrCodeDeviceOffline:       "设备离线",
+	ErrCodeSceneNoPermission:   "场景无权限",
+	ErrCodeSpecNotFound:        "未找到功能定义",
+	ErrCodeCannotExecute:       "无法执行此操作",
+	ErrCodeCameraSleeping:      "摄像机休眠中",
+	ErrCodeTimeout:             "操作超时",
+	ErrCodeDeviceNotFound:      "未找到设备",
+	ErrCodeInvalidID:           "非法的 ID",
+	ErrCodeInvalidUID:          "非法的 uid",
+	ErrCodeInvalidSubID:        "非法的订阅 ID",
+	ErrCodeActionParamCount:    "方法输入参数数量不匹配",
+	ErrCodeActionParamError:    "方法输入参数错误",
+	ErrCodeInvalidPropValue:    "属性值不正确",
+	ErrCodeEventParamCount:     "事件参数数量不匹配",
+	ErrCodeActionOutParamError: "方法输出参数错误",
+	ErrCodeOpenPlatformError:   "开放平台服务器内部错误",
+	ErrCodeSpecServerError:     "MIoT Spec 服务器内部错误",
+	ErrCodeSubIDEncodeError:    "订阅 ID 编码错误",
+	ErrCodeNotifyError:         "notify error",
+	ErrCodeReadPropFailed:      "读属性失败",
+	ErrCodeActionFailed:        "方法执行失败",
+	ErrCodeWritePropFailed:     "写属性失败",
+	ErrCodeReportPropFailed:    "上报属性失败",
+	ErrCodeInvalidSpec:         "非法的功能定义",
+	ErrCodeInstanceNotLoaded:   "实例未加载",
+	ErrCodeRemoteServiceError:  "远程服务异常",
+	ErrCodeMIoTError:           "MIoT 错误",
+	ErrCodePropCacheFailed:     "属性缓存失败",
+	ErrCodeThirdPartyError:     "三方云服务器内部错误",
+	ErrCodeThirdReadPropFailed: "三方云读属性失败",
+	ErrCodeThirdActionFailed:   "三方云方法执行失败",
+	ErrCodeThirdWritePropFailed: "三方云写属性失败",
+	ErrCodeThirdReportPropFailed: "三方云上报属性失败",
+	ErrCodeThirdSubFailed:      "三方云订阅失败",
+}
+
+// ErrDesc 返回错误码的中文说明。
+func ErrDesc(code int) string {
+	if s, ok := errDescriptions[code]; ok {
+		return s
+	}
+	return "未知错误"
+}
diff --git a/miot/mips_client.go b/miot/mips_client.go
index 1dac23d..750a10f 100644
--- a/miot/mips_client.go
+++ b/miot/mips_client.go
@@ -25,7 +25,6 @@ const (
 	mipsQoS                   = 2
 	mipsReconnectIntervalMin  = 10.0  // seconds
 	mipsReconnectIntervalMax  = 600.0 // seconds
-	mipsSubPatch              = 300
 	mipsSubInterval           = 1 // second
 	mipsMQTTInterval          = 1 // second
 	uint32max                 = 0xFFFFFFFF
@@ -269,6 +268,7 @@ type MQTTClient interface {
 	Disconnect()
 	IsConnected() bool
 	Subscribe(topic string, qos byte, handler func(topic string, payload []byte)) error
+	SubscribeMany(topics map[string]byte) error
 	Unsubscribe(topic string) error
 	Publish(topic string, qos byte, payload []byte) error
 	SetCredentials(username, password string)
@@ -528,34 +528,42 @@ func (c *mipsClient) flushPendingSubs() {
 		return
 	}
 
+	// 收集所有待订阅 topic，一次 SUBSCRIBE 包批量订阅（大幅减少网络往返）
 	c.pendingSubMu.Lock()
-	subbed := 0
+	batch := make(map[string]byte, len(c.pendingSubs))
 	for topic, count := range c.pendingSubs {
-		if subbed >= mipsSubPatch {
-			break
-		}
 		if count > 3 {
 			delete(c.pendingSubs, topic)
 			c.lgr.Debugf("[mips] retry sub exceeded: %s", topic)
 			continue
 		}
-		subbed++
-
-		if err := c.mqttConn.Subscribe(topic, byte(mipsQoS), func(t string, p []byte) {
-			c.onMQTTMessage(t, p)
-		}); err == nil {
-			delete(c.pendingSubs, topic)
-			c.lgr.Debugf("[mips] sub success: %s", topic)
-		} else {
-			c.pendingSubs[topic] = count + 1
-			c.lgr.Debugf("[mips] retry sub %d: %s %v", count, topic, err)
-		}
+		batch[topic] = byte(mipsQoS)
 	}
-
-	hasMore := len(c.pendingSubs) > 0
 	c.pendingSubMu.Unlock()
 
-	if hasMore {
+	if len(batch) == 0 {
+		return
+	}
+
+	if err := c.mqttConn.SubscribeMany(batch); err == nil {
+		c.pendingSubMu.Lock()
+		for t := range batch {
+			delete(c.pendingSubs, t)
+			c.lgr.Debugf("[mips] sub success: %s", t)
+		}
+		hasMore := len(c.pendingSubs) > 0
+		c.pendingSubMu.Unlock()
+		if hasMore {
+			time.Sleep(time.Duration(mipsSubInterval) * time.Second)
+			c.flushPendingSubs()
+		}
+	} else {
+		c.lgr.Debugf("[mips] batch sub error: %v", err)
+		c.pendingSubMu.Lock()
+		for t := range batch {
+			c.pendingSubs[t] = c.pendingSubs[t] + 1
+		}
+		c.pendingSubMu.Unlock()
 		time.Sleep(time.Duration(mipsSubInterval) * time.Second)
 		c.flushPendingSubs()
 	}
@@ -1042,6 +1050,22 @@ func (p *pahoMQTTClient) Subscribe(topic string, qos byte, handler func(topic st
 	return nil
 }
 
+// SubscribeMany 用单个 SUBSCRIBE 包批量订阅多个 topic，显著减少网络往返。
+// 消息分发仍走 DefaultPublishHandler，与 Subscribe 行为一致。
+func (p *pahoMQTTClient) SubscribeMany(topics map[string]byte) error {
+	if p.client == nil || !p.client.IsConnected() {
+		return fmt.Errorf("not connected")
+	}
+	if len(topics) == 0 {
+		return nil
+	}
+	token := p.client.SubscribeMultiple(topics, nil)
+	if token.Wait() && token.Error() != nil {
+		return token.Error()
+	}
+	return nil
+}
+
 func (p *pahoMQTTClient) Unsubscribe(topic string) error {
 	if p.client == nil || !p.client.IsConnected() {
 		return fmt.Errorf("not connected")
diff --git a/miot/mips_client_test.go b/miot/mips_client_test.go
index f55de1b..f6a7f2a 100644
--- a/miot/mips_client_test.go
+++ b/miot/mips_client_test.go
@@ -183,9 +183,6 @@ func TestMipsConstants(t *testing.T) {
 	if mipsQoS != 2 {
 		t.Errorf("mipsQoS = %d, want 2", mipsQoS)
 	}
-	if mipsSubPatch != 300 {
-		t.Errorf("mipsSubPatch = %d, want 300", mipsSubPatch)
-	}
 	if MipsRequestTimeoutDefault != 10000 {
 		t.Errorf("MipsRequestTimeoutDefault = %d, want 10000", MipsRequestTimeoutDefault)
 	}
diff --git a/xiaomi/classify.go b/xiaomi/classify.go
index af126f8..f2990d6 100644
--- a/xiaomi/classify.go
+++ b/xiaomi/classify.go
@@ -38,9 +38,9 @@ var deviceTypeToKind = map[string]Kind{
 	"water-heater":         KindWaterHeater,
 	"water-cooler":         KindWaterHeater,
 	"kettle":               KindWaterHeater,
-	"heater":               KindThermostat,
-	"electric-blanket":     KindThermostat,
-	"thermostat":           KindThermostat,
+	"heater":               KindAirConditioner,
+	"electric-blanket":     KindAirConditioner,
+	"thermostat":           KindAirConditioner,
 	"speaker":              KindSpeaker,
 	"bluetooth-speaker":    KindSpeaker,
 	"alarm-clock":          KindSpeaker,
diff --git a/xiaomi/devices/air_conditioner.go b/xiaomi/devices/air_conditioner.go
index 7265a4e..97f32b8 100644
--- a/xiaomi/devices/air_conditioner.go
+++ b/xiaomi/devices/air_conditioner.go
@@ -199,25 +199,67 @@ func NewAirConditioner(client *xiaomi.Client, info *xiaomi.DeviceInfo) (AirCondi
 		return nil
 	}
 
-	// "on" is required
-	siid, piid, ok := resolver.find("on")
-	if !ok {
-		return nil, xiaomi.ErrNotSupported
+	// findValListInService 从指定服务（短名）内查找属性的 ValueList。
+	findValListInService := func(svcName, propType string) miot.MIoTSpecValueList {
+		for _, svc := range spec.Services {
+			if serviceShortName(svc.Type) != svcName {
+				continue
+			}
+			for _, p := range svc.Properties {
+				if propertyShortName(p.Type) == propType {
+					return p.ValueList
+				}
+			}
+		}
+		return nil
+	}
+
+	// "on" is required。
+	// 三合一设备（thermostat+air-conditioner+air-fresh 多服务同名冲突）的空调实体在 thermostat 服务：
+	// 存在 thermostat 服务时优先从它取 on/target-temperature，否则取第一个同名属性（普通空调）。
+	if resolver.hasService("thermostat") {
+		if s, p, ok := resolver.findInService("thermostat", "on"); ok {
+			d.propOn = siidPiid{s, p, true}
+		} else if s, p, ok := resolver.find("on"); ok {
+			d.propOn = siidPiid{s, p, true}
+		}
+	} else {
+		siid, piid, ok := resolver.find("on")
+		if !ok {
+			return nil, xiaomi.ErrNotSupported
+		}
+		d.propOn = siidPiid{siid, piid, true}
 	}
-	d.propOn = siidPiid{siid, piid, true}
 
 	// Optional properties — each independently resolved
 	if s, p, ok := resolver.find("mode"); ok {
 		d.propMode = siidPiid{s, p, true}
 		d.modeMap = newValMapper(findValList("mode"))
 	}
-	if s, p, ok := resolver.find("target-temperature"); ok {
+	if resolver.hasService("thermostat") {
+		// 三合一设备：target-temperature 优先 thermostat 服务（空调温度）
+		if s, p, ok := resolver.findInService("thermostat", "target-temperature"); ok {
+			d.propTargetTemp = siidPiid{s, p, true}
+		} else if s, p, ok := resolver.find("target-temperature"); ok {
+			d.propTargetTemp = siidPiid{s, p, true}
+		}
+	} else if s, p, ok := resolver.find("target-temperature"); ok {
 		d.propTargetTemp = siidPiid{s, p, true}
 	}
 	if s, p, ok := resolver.find("temperature"); ok {
 		d.propCurrentTemp = siidPiid{s, p, true}
 	}
-	if s, p, ok := resolver.find("fan-level"); ok {
+	// fan-level：三合一设备优先 thermostat 服务（空调风速 siid=4/piid=3），
+	// 否则取第一个同名属性（普通空调 air-conditioner 服务 / air-fresh 新风机）。
+	if resolver.hasService("thermostat") {
+		if s, p, ok := resolver.findInService("thermostat", "fan-level"); ok {
+			d.propFanSpeed = siidPiid{s, p, true}
+			d.fanMap = newValMapper(findValListInService("thermostat", "fan-level"))
+		} else if s, p, ok := resolver.find("fan-level"); ok {
+			d.propFanSpeed = siidPiid{s, p, true}
+			d.fanMap = newValMapper(findValList("fan-level"))
+		}
+	} else if s, p, ok := resolver.find("fan-level"); ok {
 		d.propFanSpeed = siidPiid{s, p, true}
 		d.fanMap = newValMapper(findValList("fan-level"))
 	}
diff --git a/xiaomi/devices/base.go b/xiaomi/devices/base.go
index b15efd7..b56bdbc 100644
--- a/xiaomi/devices/base.go
+++ b/xiaomi/devices/base.go
@@ -142,7 +142,8 @@ func (d *BaseDevice) getSpecResolver() *specResolver {
 
 // specResolver is a thin wrapper to avoid importing specs package in every device file.
 type specResolver struct {
-	byType map[string]*miot.MIoTSpecProperty
+	byType   map[string]*miot.MIoTSpecProperty // property short name → first match
+	services []*miot.MIoTSpecService           // 保留服务列表（支持按服务查找）
 }
 
 func newSpecResolver(spec *miot.MIoTSpecInstance) *specResolver {
@@ -150,7 +151,8 @@ func newSpecResolver(spec *miot.MIoTSpecInstance) *specResolver {
 		return nil
 	}
 	r := &specResolver{
-		byType: make(map[string]*miot.MIoTSpecProperty),
+		byType:   make(map[string]*miot.MIoTSpecProperty),
+		services: spec.Services,
 	}
 	for _, svc := range spec.Services {
 		for i := range svc.Properties {
@@ -176,6 +178,17 @@ func propertyShortName(urn string) string {
 	return urn
 }
 
+// serviceShortName extracts the short name from a SPEC service URN.
+// E.g., "urn:miot-spec-v2:service:thermostat:0000784A:..." → "thermostat".
+// 注意：不能用 propertyShortName 解析服务 URN（其只认 parts[2]=="property"）。
+func serviceShortName(urn string) string {
+	parts := strings.Split(urn, ":")
+	if len(parts) >= 4 && parts[2] == "service" {
+		return parts[3]
+	}
+	return urn
+}
+
 func (r *specResolver) find(propType string) (siid, piid int, found bool) {
 	if r == nil {
 		return 0, 0, false
@@ -186,6 +199,38 @@ func (r *specResolver) find(propType string) (siid, piid int, found bool) {
 	return 0, 0, false
 }
 
+// findInService 在指定服务（短名，如 "thermostat"）内查找属性。
+// 用于多服务同名属性冲突时按服务精确定位（如三合一设备空调实体在 thermostat 服务）。
+func (r *specResolver) findInService(svcName, propType string) (siid, piid int, found bool) {
+	if r == nil {
+		return 0, 0, false
+	}
+	for _, svc := range r.services {
+		if svc == nil || serviceShortName(svc.Type) != svcName {
+			continue
+		}
+		for _, prop := range svc.Properties {
+			if prop != nil && propertyShortName(prop.Type) == propType {
+				return svc.IID, prop.PIID, true
+			}
+		}
+	}
+	return 0, 0, false
+}
+
+// hasService 判断设备是否包含指定服务（短名）。
+func (r *specResolver) hasService(svcName string) bool {
+	if r == nil {
+		return false
+	}
+	for _, svc := range r.services {
+		if svc != nil && serviceShortName(svc.Type) == svcName {
+			return true
+		}
+	}
+	return false
+}
+
 // prop returns the full SPEC property for the given type name.
 func (r *specResolver) prop(propType string) *miot.MIoTSpecProperty {
 	if r == nil {
diff --git a/xiaomi/devices/cover.go b/xiaomi/devices/cover.go
index e10cbe8..3e5d3ba 100644
--- a/xiaomi/devices/cover.go
+++ b/xiaomi/devices/cover.go
@@ -5,6 +5,13 @@ import (
 	"xiaomihome/xiaomi"
 )
 
+// CoverProps 窗帘完整状态。
+type CoverProps struct {
+	Position int `json:"position"` // 当前位置 0-100
+	Status   int `json:"status"`   // 运动状态：0=停止 1=开启中 2=关闭中
+	Fault    int `json:"fault"`    // 故障码，0=无故障
+}
+
 // Cover 窗帘/晾衣架统一控制接口
 type Cover interface {
 	Device
@@ -15,17 +22,20 @@ type Cover interface {
 	SetPosition(ctx context.Context, pct int) error
 	GetPosition(ctx context.Context) (int, error)
 
-	OnPropsChanged(handler func(position int)) (string, error)
-	GetProps() int
-	FetchProps(ctx context.Context) (int, error)
+	OnPropsChanged(handler func(props CoverProps)) (string, error)
+	GetProps() CoverProps
+	FetchProps(ctx context.Context) (CoverProps, error)
 }
 
 type coverDevice struct {
 	BaseDevice
-	propMotor    siidPiid
-	propPosition siidPiid
+	propMotor    siidPiid // motor-control（write）
+	propPosition siidPiid // current-position（read）
+	propTarget   siidPiid // target-position（write，SetPosition 用）
+	propStatus   siidPiid // status（read）
+	propFault    siidPiid // fault（read）
 
-	propsCache int
+	propsCache CoverProps
 }
 
 const (
@@ -48,6 +58,15 @@ func NewCover(client *xiaomi.Client, info *xiaomi.DeviceInfo) (Cover, error) {
 	if s, p, ok := resolver.find("current-position"); ok {
 		d.propPosition = siidPiid{s, p, true}
 	}
+	if s, p, ok := resolver.find("target-position"); ok {
+		d.propTarget = siidPiid{s, p, true}
+	}
+	if s, p, ok := resolver.find("status"); ok {
+		d.propStatus = siidPiid{s, p, true}
+	}
+	if s, p, ok := resolver.find("fault"); ok {
+		d.propFault = siidPiid{s, p, true}
+	}
 	return d, nil
 }
 
@@ -63,10 +82,19 @@ func (d *coverDevice) Stop(ctx context.Context) error {
 	if !d.propMotor.valid { return xiaomi.ErrNotSupported }
 	return d.SetProp(ctx, d.propMotor.siid, d.propMotor.piid, coverMotorStop)
 }
+
+// SetPosition 设定目标位置，写 target-position（可写属性）。
+// 老设备无 target-position 时回退写 current-position。
 func (d *coverDevice) SetPosition(ctx context.Context, pct int) error {
-	if !d.propPosition.valid { return xiaomi.ErrNotSupported }
-	return d.SetProp(ctx, d.propPosition.siid, d.propPosition.piid, pct)
+	if d.propTarget.valid {
+		return d.SetProp(ctx, d.propTarget.siid, d.propTarget.piid, pct)
+	}
+	if d.propPosition.valid {
+		return d.SetProp(ctx, d.propPosition.siid, d.propPosition.piid, pct)
+	}
+	return xiaomi.ErrNotSupported
 }
+
 func (d *coverDevice) GetPosition(ctx context.Context) (int, error) {
 	if !d.propPosition.valid { return 0, xiaomi.ErrNotSupported }
 	prop, err := d.GetProp(ctx, d.propPosition.siid, d.propPosition.piid)
@@ -74,20 +102,48 @@ func (d *coverDevice) GetPosition(ctx context.Context) (int, error) {
 	return toInt(prop.Value), nil
 }
 
-func (d *coverDevice) OnPropsChanged(handler func(position int)) (string, error) {
-	if !d.propPosition.valid { return "", xiaomi.ErrNotSupported }
+func (d *coverDevice) OnPropsChanged(handler func(props CoverProps)) (string, error) {
+	if !d.propPosition.valid && !d.propStatus.valid && !d.propFault.valid {
+		return "", xiaomi.ErrNotSupported
+	}
 	return d.SubProp(0, 0, func(did string, prop *xiaomi.PropertyValue) {
-		if prop.SIID == d.propPosition.siid && prop.PIID == d.propPosition.piid {
-			d.propsCache = toInt(prop.Value)
-			handler(d.propsCache)
+		switch {
+		case d.propPosition.valid && prop.SIID == d.propPosition.siid && prop.PIID == d.propPosition.piid:
+			d.propsCache.Position = toInt(prop.Value)
+		case d.propStatus.valid && prop.SIID == d.propStatus.siid && prop.PIID == d.propStatus.piid:
+			d.propsCache.Status = toInt(prop.Value)
+		case d.propFault.valid && prop.SIID == d.propFault.siid && prop.PIID == d.propFault.piid:
+			d.propsCache.Fault = toInt(prop.Value)
+		default:
+			return // 其他属性不触发回调
 		}
+		handler(d.propsCache)
 	})
 }
 
-func (d *coverDevice) GetProps() int { return d.propsCache }
-func (d *coverDevice) FetchProps(ctx context.Context) (int, error) {
-	pos, err := d.GetPosition(ctx)
-	if err != nil { return d.propsCache, err }
-	d.propsCache = pos
-	return pos, nil
+func (d *coverDevice) GetProps() CoverProps { return d.propsCache }
+
+func (d *coverDevice) FetchProps(ctx context.Context) (CoverProps, error) {
+	keys := []xiaomi.PropKey{}
+	if d.propPosition.valid { keys = append(keys, xiaomi.PropKey{DID: d.info.DID, SIID: d.propPosition.siid, PIID: d.propPosition.piid}) }
+	if d.propStatus.valid { keys = append(keys, xiaomi.PropKey{DID: d.info.DID, SIID: d.propStatus.siid, PIID: d.propStatus.piid}) }
+	if d.propFault.valid { keys = append(keys, xiaomi.PropKey{DID: d.info.DID, SIID: d.propFault.siid, PIID: d.propFault.piid}) }
+	if len(keys) == 0 {
+		return d.propsCache, xiaomi.ErrNotSupported
+	}
+	props, err := d.client.GetProps(ctx, keys)
+	if err != nil {
+		return d.propsCache, err
+	}
+	for _, p := range props {
+		switch {
+		case d.propPosition.valid && p.SIID == d.propPosition.siid && p.PIID == d.propPosition.piid:
+			d.propsCache.Position = toInt(p.Value)
+		case d.propStatus.valid && p.SIID == d.propStatus.siid && p.PIID == d.propStatus.piid:
+			d.propsCache.Status = toInt(p.Value)
+		case d.propFault.valid && p.SIID == d.propFault.siid && p.PIID == d.propFault.piid:
+			d.propsCache.Fault = toInt(p.Value)
+		}
+	}
+	return d.propsCache, nil
 }
diff --git a/xiaomi/devices/devices_test.go b/xiaomi/devices/devices_test.go
index b5cba24..c406fa3 100644
--- a/xiaomi/devices/devices_test.go
+++ b/xiaomi/devices/devices_test.go
@@ -131,6 +131,18 @@ func TestMatchURN(t *testing.T) {
 			[]string{"heater"},
 			true,
 		},
+		{
+			"tofan-wk01 not fan", // "tofan" 含 "fan" 子串，不得误匹配 fan 系列
+			"urn:miot-spec-v2:device:thermostat:0000A031:tofan-wk01:1:0000C822",
+			[]string{"fan", "ceiling-fan", "ventilator", "air-fresh", "air-purifier"},
+			false,
+		},
+		{
+			"tofan-wk01 thermostat",
+			"urn:miot-spec-v2:device:thermostat:0000A031:tofan-wk01:1:0000C822",
+			[]string{"heater", "electric-blanket", "thermostat"},
+			true,
+		},
 		{
 			"no match",
 			"urn:miot-spec-v2:device:unknown:0000A099:test:1",
@@ -171,3 +183,20 @@ func TestCreateNilInfo(t *testing.T) {
 		t.Error("expected error for nil info")
 	}
 }
+
+func TestServiceShortName(t *testing.T) {
+	cases := []struct {
+		urn  string
+		want string
+	}{
+		{"urn:miot-spec-v2:service:thermostat:0000784A:tofan-wk01:1", "thermostat"},
+		{"urn:miot-spec-v2:service:air-conditioner:0000780F:tofan-wk01:1", "air-conditioner"},
+		{"urn:tofan-spec:service:adv-setting:00007801:tofan-wk01:1", "adv-setting"},
+		{"urn:miot-spec-v2:property:on:00000006:tofan-wk01:1", "urn:miot-spec-v2:property:on:00000006:tofan-wk01:1"},
+	}
+	for _, c := range cases {
+		if got := serviceShortName(c.urn); got != c.want {
+			t.Errorf("serviceShortName(%q) = %q, want %q", c.urn, got, c.want)
+		}
+	}
+}
diff --git a/xiaomi/devices/factory.go b/xiaomi/devices/factory.go
index 72c3906..8f18fd8 100644
--- a/xiaomi/devices/factory.go
+++ b/xiaomi/devices/factory.go
@@ -1,6 +1,8 @@
 package devices
 
 import (
+	"strings"
+
 	"xiaomihome/xiaomi"
 )
 
@@ -84,7 +86,7 @@ func createImpl(client *xiaomi.Client, info *xiaomi.DeviceInfo) (interface{}, er
 	case matchURN(urn, "water-heater", "water-cooler", "kettle"):
 		ctrl, err = NewWaterHeater(client, info)
 	case matchURN(urn, "heater", "electric-blanket", "thermostat"):
-		ctrl, err = NewThermostat(client, info)
+		ctrl, err = NewAirConditioner(client, info)
 	case matchURN(urn, "sensor-occupy", "sensor_occupy", "occupancy-sensor", "occupancy_sensor", "motion-sensor", "motion_sensor", "magnet"):
 		ctrl, err = NewOccupancySensor(client, info)
 	case matchURN(urn, "sensor-temp", "sensor_temp", "sensor-humidity", "sensor_humidity", "sensor-ht", "sensor_ht", "sensor-smoke", "sensor-gasm", "illumination"):
@@ -105,17 +107,50 @@ func createImpl(client *xiaomi.Client, info *xiaomi.DeviceInfo) (interface{}, er
 	return ctrl, nil
 }
 
-// matchURN checks if the device URN contains any of the given type strings.
+// matchURN 匹配 URN 的 device 类型段。
+// 标准格式 urn:miot-spec-v2:device:{TYPE}:... 做精确段匹配（避免 "tofan" 撞 "fan" 这类子串误判）；
+// 非标准 URN 回退到边界子串匹配。
 func matchURN(urn string, types ...string) bool {
-	for _, t := range types {
-		if len(urn) >= len(t) {
-			// Simple substring match — URN format: urn:miot-spec-v2:device:TYPE:...
-			for i := 0; i <= len(urn)-len(t); i++ {
-				if urn[i:i+len(t)] == t {
-					return true
-				}
+	parts := strings.Split(urn, ":")
+	if len(parts) >= 4 && parts[2] == "device" {
+		devType := parts[3]
+		for _, t := range types {
+			if devType == t {
+				return true
 			}
 		}
+		return false
+	}
+	// 非标准 URN：按边界匹配，前后必须是分隔符，避免误撞
+	for _, t := range types {
+		if boundaryContains(urn, t) {
+			return true
+		}
 	}
 	return false
 }
+
+// boundaryContains 检查 sub 是否在 s 中出现且前后是分隔符或边界。
+func boundaryContains(s, sub string) bool {
+	for i := 0; i+len(sub) <= len(s); i++ {
+		if s[i:i+len(sub)] != sub {
+			continue
+		}
+		beforeOK := i == 0
+		if !beforeOK {
+			beforeOK = isBoundary(s[i-1])
+		}
+		afterOK := i+len(sub) == len(s)
+		if !afterOK {
+			afterOK = isBoundary(s[i+len(sub)])
+		}
+		if beforeOK && afterOK {
+			return true
+		}
+	}
+	return false
+}
+
+func isBoundary(c byte) bool {
+	return c == ':' || c == '-' || c == '.' || c == '_' || c == '/'
+}
diff --git a/xiaomi/devices/gateway.go b/xiaomi/devices/gateway.go
new file mode 100644
index 0000000..c20d7ca
--- /dev/null
+++ b/xiaomi/devices/gateway.go
@@ -0,0 +1,22 @@
+package devices
+
+import "xiaomihome/xiaomi"
+
+// Gateway 网关设备（仅类型识别，不参与控制）。
+type Gateway interface {
+	Device
+}
+
+type gatewayDevice struct {
+	BaseDevice
+}
+
+// NewGateway creates a Gateway device wrapper for type recognition.
+func NewGateway(client *xiaomi.Client, info *xiaomi.DeviceInfo) (Gateway, error) {
+	if info == nil {
+		return nil, xiaomi.ErrDeviceNotFound
+	}
+	return &gatewayDevice{
+		BaseDevice: NewBaseDevice(client, info),
+	}, nil
+}
diff --git a/xiaomi/devices/plug.go b/xiaomi/devices/plug.go
new file mode 100644
index 0000000..ed6043c
--- /dev/null
+++ b/xiaomi/devices/plug.go
@@ -0,0 +1,102 @@
+package devices
+
+import (
+	"context"
+	"fmt"
+
+	"xiaomihome/xiaomi"
+)
+
+// Plug 插座/插头统一控制接口（电脑开机卡、智能插座等）。
+type Plug interface {
+	Device
+	TurnOn(ctx context.Context) error
+	TurnOff(ctx context.Context) error
+	IsOn(ctx context.Context) (bool, error)
+
+	OnPropsChanged(handler func(on bool)) (string, error)
+	GetProps() PlugProps
+	FetchProps(ctx context.Context) (PlugProps, error)
+}
+
+// PlugProps 插座完整状态。
+type PlugProps struct {
+	On bool `json:"on"`
+}
+
+type plugDevice struct {
+	BaseDevice
+	propOn     siidPiid
+	propsCache PlugProps
+}
+
+// NewPlug creates a Plug control for the given device.
+func NewPlug(client *xiaomi.Client, info *xiaomi.DeviceInfo) (Plug, error) {
+	if info == nil {
+		return nil, xiaomi.ErrDeviceNotFound
+	}
+	miotDev := client.GetMIoTDevice(info.DID)
+	if miotDev == nil || miotDev.SpecInstance() == nil {
+		return nil, fmt.Errorf("%w: device has no SPEC", xiaomi.ErrNotSupported)
+	}
+
+	d := &plugDevice{
+		BaseDevice: NewBaseDevice(client, info),
+	}
+
+	for _, svc := range miotDev.SpecInstance().Services {
+		for _, prop := range svc.Properties {
+			if propertyShortName(prop.Type) == "on" && !d.propOn.valid {
+				d.propOn = siidPiid{prop.SIID, prop.PIID, true}
+			}
+		}
+	}
+	if !d.propOn.valid {
+		return nil, fmt.Errorf("%w: no on property", xiaomi.ErrNotSupported)
+	}
+
+	return d, nil
+}
+
+func (d *plugDevice) TurnOn(ctx context.Context) error {
+	return d.SetProp(ctx, d.propOn.siid, d.propOn.piid, true)
+}
+
+func (d *plugDevice) TurnOff(ctx context.Context) error {
+	return d.SetProp(ctx, d.propOn.siid, d.propOn.piid, false)
+}
+
+func (d *plugDevice) IsOn(ctx context.Context) (bool, error) {
+	prop, err := d.GetProp(ctx, d.propOn.siid, d.propOn.piid)
+	if err != nil {
+		return false, err
+	}
+	b, _ := prop.Value.(bool)
+	return b, nil
+}
+
+func (d *plugDevice) OnPropsChanged(handler func(on bool)) (string, error) {
+	return d.SubProp(d.propOn.siid, d.propOn.piid, func(did string, prop *xiaomi.PropertyValue) {
+		if b, ok := prop.Value.(bool); ok {
+			d.propsCache.On = b
+			handler(b)
+		}
+	})
+}
+
+func (d *plugDevice) GetProps() PlugProps { return d.propsCache }
+
+func (d *plugDevice) FetchProps(ctx context.Context) (PlugProps, error) {
+	props, err := d.client.GetProps(ctx, []xiaomi.PropKey{
+		{DID: d.info.DID, SIID: d.propOn.siid, PIID: d.propOn.piid},
+	})
+	if err != nil {
+		return d.propsCache, err
+	}
+	for _, p := range props {
+		if p.SIID == d.propOn.siid && p.PIID == d.propOn.piid {
+			d.propsCache.On, _ = p.Value.(bool)
+		}
+	}
+	return d.propsCache, nil
+}
diff --git a/xiaomi/devices/properties.go b/xiaomi/devices/properties.go
index 49292b7..0abf004 100644
--- a/xiaomi/devices/properties.go
+++ b/xiaomi/devices/properties.go
@@ -12,7 +12,6 @@ const (
 	TypeHumidifier      = "humidifier"           // 加湿器
 	TypeVacuum          = "vacuum"               // 吸尘器/扫地机器人
 	TypeWaterHeater     = "water_heater"         // 热水器
-	TypeThermostat      = "thermostat"           // 温控器
 	TypeOccupancySensor = "sensor_occupy"        // 人体传感器
 	TypeTempHumidSensor = "sensor"               // 温湿度传感器（官方 URN type）
 	TypeSpeaker         = "speaker"              // 音箱
diff --git a/xiaomi/examples/08_adv_filter_classify/main.go b/xiaomi/examples/08_adv_filter_classify/main.go
index f1726e5..2a9f3eb 100644
--- a/xiaomi/examples/08_adv_filter_classify/main.go
+++ b/xiaomi/examples/08_adv_filter_classify/main.go
@@ -70,7 +70,6 @@ func main() {
 		xiaomi.KindHumidifier,
 		xiaomi.KindVacuum,
 		xiaomi.KindWaterHeater,
-		xiaomi.KindThermostat,
 	}
 
 	for _, kind := range allKinds {
diff --git a/xiaomi/types.go b/xiaomi/types.go
index deeaa21..521efa3 100644
--- a/xiaomi/types.go
+++ b/xiaomi/types.go
@@ -154,7 +154,6 @@ const (
 	KindHumidifier     Kind = "humidifier"
 	KindVacuum         Kind = "vacuum"
 	KindWaterHeater    Kind = "water_heater"
-	KindThermostat     Kind = "thermostat"
 	KindSpeaker        Kind = "speaker"
 	KindGateway            Kind = "gateway"
 	KindPlug               Kind = "plug"