diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/HBLogic.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/HBLogic.java
index 2f4589c5..a85e8065 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/HBLogic.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/HBLogic.java
@@ -36,7 +36,7 @@ public class HBLogic implements ServiceLogic {
         Map<String, Object> cacheGun = REDIS.getCacheMap(gunkey);
         cacheGun.put("status", stable[gunStatusInt.intValue()]);
         cacheGun.put("statusInt", gunStatusInt);
-        cacheGun.put("hbtime", String.valueOf(Calendar.getInstance().getTimeInMillis()));
+        cacheGun.put("hbtime", Calendar.getInstance().getTimeInMillis());
         REDIS.setCacheMap(gunkey, cacheGun);
         String skey = gunkey.concat(".seqhex");
         String seq = seqHex(skey);