diff --git a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/CleanOrderConfirmEventHandler.java b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/CleanOrderConfirmEventHandler.java
index b63cc3c..6a3a423 100644
--- a/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/CleanOrderConfirmEventHandler.java
+++ b/viewsh-module-ops/viewsh-module-environment-biz/src/main/java/com/viewsh/module/ops/environment/integration/consumer/CleanOrderConfirmEventHandler.java
@@ -44,6 +44,10 @@ public class CleanOrderConfirmEventHandler implements RocketMQListener<String> {
     private static final String DEDUP_KEY_PATTERN = "ops:clean:dedup:confirm:%s";
     private static final int DEDUP_TTL_SECONDS = 300;
 
+    private static final String TTS_ORDER_IN_PROGRESS = "工单已在进行中";
+    private static final String TTS_CANNOT_CONFIRM = "当前状态无法确认工单";
+    private static final String TTS_CONFIRM_SUCCESS = "工单已确认，请前往作业区域开始作业";
+
     @Resource
     private ObjectMapper objectMapper;
 
@@ -94,14 +98,14 @@ public class CleanOrderConfirmEventHandler implements RocketMQListener<String> {
             // 4. 状态检查
             // 如果已在进行中 (CONFIRMED or ARRIVED)，提示"工单已在进行中"
             if (currentStatus == WorkOrderStatusEnum.CONFIRMED || currentStatus == WorkOrderStatusEnum.ARRIVED) {
-                sendTTS(event.getDeviceId(), "工单已在进行中");
+                sendTts(event.getDeviceId(), TTS_ORDER_IN_PROGRESS);
                 return;
             }
 
             // 检查是否可以确认
             if (!currentStatus.canConfirm()) {
                 log.warn("[CleanOrderConfirmEventHandler] 当前状态无法确认工单: orderId={}, status={}", orderId, currentStatus);
-                sendTTS(event.getDeviceId(), "当前状态无法确认工单");
+                sendTts(event.getDeviceId(), TTS_CANNOT_CONFIRM);
                 return;
             }
 
@@ -111,7 +115,7 @@ public class CleanOrderConfirmEventHandler implements RocketMQListener<String> {
                     .targetStatus(WorkOrderStatusEnum.CONFIRMED)
                     .reason("工牌按键确认")
                     .operatorType(OperatorTypeEnum.CLEANER)
-                    .operatorId(order.getAssigneeId())
+                    .operatorId(order.getAssigneeId() != null ? order.getAssigneeId() : 0L)
                     .build();
 
             orderLifecycleManager.transition(request);
@@ -126,8 +130,7 @@ public class CleanOrderConfirmEventHandler implements RocketMQListener<String> {
 
             // 7. 发送 TTS 通知
             // "工单已确认，请前往{AreaName}开始作业"
-            String ttsText = "工单已确认，请前往作业区域开始作业";
-            sendTTS(event.getDeviceId(), ttsText);
+            sendTts(event.getDeviceId(), TTS_CONFIRM_SUCCESS);
 
         } catch (Exception e) {
             log.error("[CleanOrderConfirmEventHandler] 消息处理失败: message={}", message, e);
@@ -138,22 +141,30 @@ public class CleanOrderConfirmEventHandler implements RocketMQListener<String> {
     /**
      * 发送 TTS 语音播报
      */
-    private void sendTTS(Long deviceId, String text) {
+    private void sendTts(Long deviceId, String text) {
         if (deviceId == null) {
             return;
         }
         try {
             Map<String, Object> params = new HashMap<>();
             params.put("text", text);
+            params.put("volume", 80);
 
             IotDeviceServiceInvokeReqDTO req = IotDeviceServiceInvokeReqDTO.builder()
                     .deviceId(deviceId)
-                    .identifier("TTS")
+                    .identifier("playVoice")
                     .params(params)
-                    .timeoutSeconds(10)
+                    .timeoutSeconds(30)
                     .build();
 
-            iotDeviceControlApi.invokeService(req);
+            var result = iotDeviceControlApi.invokeService(req);
+
+            if (result.getData() != null && result.getData().getSuccess()) {
+                log.info("[CleanOrderConfirmEventHandler] TTS 下发成功: deviceId={}, text={}", deviceId, text);
+            } else {
+                log.warn("[CleanOrderConfirmEventHandler] TTS 下发失败: deviceId={}, error={}",
+                        deviceId, result.getData() != null ? result.getData().getErrorMsg() : "Unknown error");
+            }
         } catch (Exception e) {
             log.error("[CleanOrderConfirmEventHandler] TTS 发送失败: deviceId={}", deviceId, e);
         }