diff --git a/zc-business/src/main/java/com/zc/business/controller/DcDeviceController.java b/zc-business/src/main/java/com/zc/business/controller/DcDeviceController.java
index 812e0395..ddcbee8e 100644
--- a/zc-business/src/main/java/com/zc/business/controller/DcDeviceController.java
+++ b/zc-business/src/main/java/com/zc/business/controller/DcDeviceController.java
@@ -1974,7 +1974,7 @@ private VideoController videoController;
     public TableDataInfo selectSmokeList( DcSmokeRecord dcSmokeRecord){
         startPage();
         Map<String, Object> redisCacheCacheMap = redisCache.getCacheMap(SOMKEVALUE);
-        if (redisCacheCacheMap==null){
+        if (redisCacheCacheMap==null || redisCacheCacheMap.isEmpty()){
             return getDataTable(Collections.emptyList());
         }
         Set<String> strings = redisCacheCacheMap.keySet();