diff --git a/src/main/java/org/springblade/modules/job/CarInfoTask.java b/src/main/java/org/springblade/modules/job/CarInfoTask.java
index 61a2028..923ea62 100644
--- a/src/main/java/org/springblade/modules/job/CarInfoTask.java
+++ b/src/main/java/org/springblade/modules/job/CarInfoTask.java
@@ -80,7 +80,7 @@ public class CarInfoTask {
         JSONObject json = JSON.parseObject(allCarData);
         String carNo = CarInfoCache.getPushCarNo();
         Map<String, Object> resultMap = new HashMap<>();
-        if (Func.isEmpty(info)) {
+        if (Func.isEmpty(carNo)) {
             message.setContent(JSON.toJSONString(initMap(resultMap)));
             websocketService.broadcast(message);
             return;