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 bc99bd59..9a4b4312 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
@@ -248,7 +248,7 @@ public class DcDeviceController extends BaseController {
             JSONObject formatValue = JSON.parseObject(jsonObject.get("formatValue").toString());
             map.put("1", formatValue.get("1"));
             map.put("3", formatValue.get("3"));
-            map.put("timestamp", formatValue.get("equipmentReportingTime") == null? "":formatValue.get("equipmentReportingTime"));
+            map.put("timestamp", formatValue.get("equipmentReportingTime") == null? "":Long.valueOf(formatValue.get("equipmentReportingTime").toString()));
             list.add(map);
         });
         List<Map<String, Object>> newList = list.stream()