diff --git a/src/main/java/com/baiyee/adcallback/task/NewPlatFormRecordTask.java b/src/main/java/com/baiyee/adcallback/task/NewPlatFormRecordTask.java
index 2bbd768..55af486 100644
--- a/src/main/java/com/baiyee/adcallback/task/NewPlatFormRecordTask.java
+++ b/src/main/java/com/baiyee/adcallback/task/NewPlatFormRecordTask.java
@@ -81,7 +81,7 @@ public class NewPlatFormRecordTask {
                         beginTime = offsetMinute;
                         log.info("================ the begin time as {} end time as  {} ================", offsetMinute, date);
                         List<PlateFormDTO> dtoList = backDataEntityService.queryNewPlateFormDTO
-                                (CharSequenceUtil.EMPTY, "__IMEI__", offsetMinute, date, platform.getTagStr(), value);
+                                (CharSequenceUtil.NULL.toUpperCase(), "__IMEI__", offsetMinute, date, platform.getTagStr(), value);
                         log.info("================ the dto list  as {}  ================", dtoList.size());
                         if (CollUtil.isNotEmpty(dtoList)) {
                             // tag进行分组
diff --git a/src/test/java/com/baiyee/adcallback/TbEquipmentTest.java b/src/test/java/com/baiyee/adcallback/TbEquipmentTest.java
index 52376ee..6d33950 100644
--- a/src/test/java/com/baiyee/adcallback/TbEquipmentTest.java
+++ b/src/test/java/com/baiyee/adcallback/TbEquipmentTest.java
@@ -1,5 +1,6 @@
 package com.baiyee.adcallback;
 
+import cn.hutool.core.text.CharSequenceUtil;
 import cn.hutool.core.text.csv.CsvData;
 import cn.hutool.core.text.csv.CsvReader;
 import cn.hutool.core.text.csv.CsvUtil;
@@ -60,4 +61,12 @@ public class TbEquipmentTest {
 
         tbEquipmentEntityRepository.saveAll(list);
     }
+
+    @Test
+    public void query(){
+        String s = CharSequenceUtil.NULL.toUpperCase();
+        int i = "bd-hzzyb-0616-i6jh".hashCode() % 16;
+        System.out.println(s);
+    }
+
 }