diff --git a/user-service/src/main/java/com/mh/user/strategy/StatusCheckStrategy.java b/user-service/src/main/java/com/mh/user/strategy/StatusCheckStrategy.java
index 701167c..42bf08e 100644
--- a/user-service/src/main/java/com/mh/user/strategy/StatusCheckStrategy.java
+++ b/user-service/src/main/java/com/mh/user/strategy/StatusCheckStrategy.java
@@ -64,12 +64,13 @@ public class StatusCheckStrategy implements DeviceStrategy {
 
     @Override
     public String analysisReceiveData(String dateStr, String deviceType, String registerAddr, String brand, String buildingId, String buildingName, String dataStr) {
+        // 68 12 00 00 00 00 00 68 81 03 58 F3 35 E6 16
         if (dataStr.length() == 30) {
             //检验报文
             String checkStr = dataStr.substring(0, dataStr.length() - 4); //减去校验码
             String checkNum = ExchangeStringUtil.makeChecksum(checkStr);  //生成校验码
             //返回的校验码与重新生成的校验码进行校验
-            if (checkNum.equalsIgnoreCase(dataStr.substring(dataStr.length() - 4, dataStr.length() - 2))) {
+            if (!checkNum.equalsIgnoreCase(dataStr.substring(dataStr.length() - 4, dataStr.length() - 2))) {
                 return Constant.FAIL;
             }
             //表号，12位
diff --git a/user-service/src/main/java/com/mh/user/utils/ExchangeStringUtil.java b/user-service/src/main/java/com/mh/user/utils/ExchangeStringUtil.java
index 77104f5..d249c32 100644
--- a/user-service/src/main/java/com/mh/user/utils/ExchangeStringUtil.java
+++ b/user-service/src/main/java/com/mh/user/utils/ExchangeStringUtil.java
@@ -296,7 +296,7 @@ public class ExchangeStringUtil {
         if (len < 2) {
             hex = "0" + hex;
         }
-        return hex;
+        return hex.toUpperCase();
     }
     /**
      * 十进制数据转换为十六进制字符串数