diff --git a/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt b/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt
index cd5a3b5..71f5fc9 100644
--- a/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt
+++ b/app/src/main/java/com/sw/platecabinet/activity/LoginByFaceActivity.kt
@@ -407,7 +407,7 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
     private var plateEnable = false
 
     /**
-     * 打开餐盘柜：先获取 PLC 状态，有盘则出盘，无盘则播放提示音
+     * 打开餐盘柜：执行出盘，出盘后查询剩余餐盘状态并播放对应提示音
      */
     private fun openPlate(userId: String?) {
         loadLogInfo("collectFace,openPlate: userId=$userId,plateEnable=$plateEnable")
@@ -416,16 +416,19 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
         PlcHelper.getInstance(this@LoginByFaceActivity)
             .outPlate(object : PlcCallback<String> {
                 override fun onSuccess(result: String) {
-
-                    if(result.equals("true")){
-                        SoundPoolUtil.getInstance().play(RECOGNIZE_SUCCESS, 0)
-                    }
                     plateEnable = false
                     recognizeCountDownUtil.cancelCountDown()
-
-
-                    loadLogInfo("collectFace,openPlate: 出盘成功，result=$result")
-                    goInitActivity()
+                    loadLogInfo("collectFace,openPlate: 出盘完成，result=$result，开始查询剩余餐盘")
+                    // result 为 false 时表示出盘后无餐盘，直接播放无盘提示音
+                    if (result.equals("false", ignoreCase = true)) {
+                        loadLogInfo("collectFace,openPlate: result=false，餐盘已空")
+                        SoundPoolUtil.getInstance().play(NO_PLATE_REMIND, 0)
+                        goInitActivity()
+                        return
+                    }
+                    // result 为 true，出盘成功，再查询是否还有剩余餐盘
+                    SoundPoolUtil.getInstance().play(RECOGNIZE_SUCCESS, 0)
+                    checkRemainingPlate()
                 }
 
                 override fun onError(message: String) {
@@ -434,32 +437,31 @@ class LoginByFaceActivity : BaseActivity<ActivityLoginFaceBinding>(),
                     goInitActivity()
                 }
             })
+    }
 
-//        showWaitingDialog("检测餐盘中，请稍候……")
-//        PlcHelper.getInstance(this).getStatus(object : PlcCallback<PlcStatus> {
-//                override fun onSuccess(result: PlcStatus) {
-//                    hideWaitingDialog()
-//                    if (result.isEmptyPlate) {
-//                        // 无餐盘，播放提示音并返回首页
-//                        loadLogInfo("collectFace,openPlate: 暂无餐盘，isEmptyPlate=true，isCollectFace=$isCollectFace")
-//                        SoundPoolUtil.getInstance().play(NO_PLATE_REMIND, 0)
-//                        goInitActivity()
-//                        return
-//                    }
-//                    // 有餐盘，播放识别成功音效并调用出盘
-//                    loadLogInfo("collectFace,openPlate: 检测到餐盘，开始出盘")
-//
-//
-//                }
-//
-//                override fun onError(message: String) {
-//                    hideWaitingDialog()
-//                    // 状态获取失败，保底播放无盘提示
-//                    loadLogInfo("collectFace,openPlate: 获取PLC状态失败，message=$message")
-//                    SoundPoolUtil.getInstance().play(NO_PLATE_REMIND, 0)
-//                    goInitActivity()
-//                }
-//            })
+    /**
+     * 出盘成功后查询剩余餐盘状态，无盘则播放提示音
+     */
+    private fun checkRemainingPlate() {
+        PlcHelper.getInstance(this@LoginByFaceActivity)
+            .getStatus(object : PlcCallback<PlcStatus> {
+                override fun onSuccess(result: PlcStatus) {
+                    if (isFinishing || isDestroyed) return
+                    loadLogInfo("collectFace,checkRemainingPlate: isEmptyPlate=${result.isEmptyPlate}")
+                    if (result.isEmptyPlate) {
+                        // 餐盘已空，播放无盘提示音
+                        SoundPoolUtil.getInstance().play(NO_PLATE_REMIND, 0)
+                    }
+                    goInitActivity()
+                }
+
+                override fun onError(message: String) {
+                    if (isFinishing || isDestroyed) return
+                    // 状态查询失败，不影响主流程，直接跳转
+                    loadLogInfo("collectFace,checkRemainingPlate: 获取PLC状态失败，message=$message")
+                    goInitActivity()
+                }
+            })
     }
 
     private val openDebouncer by lazy { Debouncer(5000) }