diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/config/EarlierBeanConf.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/config/EarlierBeanConf.java
index 3018f97a..45ab72c4 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/config/EarlierBeanConf.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/config/EarlierBeanConf.java
@@ -29,7 +29,7 @@ public class EarlierBeanConf {
         this.springContextHolder = springContextHolder;
     }
 
-    public static boolean ifreg(String pileNo) throws NacosException {
+    public static boolean ifcanreg(String pileNo) throws NacosException {
 
         Map<String, Object> cachePile = REDIS.getCacheMap("pile:".concat(pileNo));
         if (!cachePile.isEmpty()) {
diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/controller/ChargingController.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/controller/ChargingController.java
index 8c7c5da3..915cf580 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/controller/ChargingController.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/controller/ChargingController.java
@@ -207,7 +207,7 @@ public class ChargingController {
         String pileNo = startChargingData.getPileNo();
         ClientHandler clientHandler = ChargingPileServer.getHandler(pileNo);
         if (clientHandler == null) {
-            ChargingPileServer.removeHandler(pileNo);
+//            ChargingPileServer.removeHandler(pileNo);
             return R.fail("充电桩没有连接到上次注册的服务器,请稍后再试一次");
         }
         try {
@@ -215,7 +215,7 @@ public class ChargingController {
             Map<String, Object> cacheGun = REDIS.getCacheMap(gunkey);
             String gunstatus = (String) cacheGun.get("status");
             if (!"空闲".equals(gunstatus)) {
-                return R.fail("充电桩不在空闲或正常状态,稍后再试");
+                return R.fail("端口不在空闲或正常状态,稍后再试");
             }
             if (CacheDataUtils.hori(gunkey)) return R.fail("等待上一条指令响应");
             String skey = gunkey.concat(".seqhex");
@@ -255,7 +255,7 @@ public class ChargingController {
 
         ClientHandler clientHandler = ChargingPileServer.getHandler(pileNo);
         if (clientHandler == null) {
-            ChargingPileServer.removeHandler(pileNo);
+//            ChargingPileServer.removeHandler(pileNo);
             return R.fail("充电桩没有连接到上次注册的服务器,请稍后再试一次");
         }
         try {
diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/RegisterLogic.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/RegisterLogic.java
index 2206bd1a..6bd02534 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/RegisterLogic.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/logic/RegisterLogic.java
@@ -38,7 +38,7 @@ public class RegisterLogic implements ServiceLogic {
             log.info("pile not in whitelist ({}) ", pileNo);
             hexCode = ServiceResult.HEX_01;
             resultCode = ServiceResult.FAIL;
-        } else if (!EarlierBeanConf.ifreg(pileNo)) {
+        } else if (!EarlierBeanConf.ifcanreg(pileNo)) {
             log.info("pile already registered ({}) ", pileNo);
             hexCode = ServiceResult.HEX_01;
             resultCode = ServiceResult.FAIL;
diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileEventHandler.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileEventHandler.java
index 4a8c994b..4e50fb28 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileEventHandler.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileEventHandler.java
@@ -20,17 +20,17 @@ public class ChargingPileEventHandler implements ClientEventHandler {
     @Override
     public void gotConnected(ClientHandler handler) {
 
-        log.info("-> [{}] <- {}", handler.getName(), handler.getSocket().getRemoteSocketAddress().toString());
+        log.info("-> [{}] - {} <-", handler.getName(), handler.getSocket().getRemoteSocketAddress().toString());
     }
 
     @Override
     public void lostConnection(ClientHandler handler) {
 
         String pileNo = ChargingPileServer.getPileNo(handler);
-        if (pileNo != null) {
-            ChargingPileServer.removeHandler(pileNo);
-        }
-        log.info("-> ({}) - [{}] <- {}",
+//        if (pileNo != null) {
+//            ChargingPileServer.removeHandler(pileNo);
+//        }
+        log.info("<- ({}) - [{}] - {} ->",
                 pileNo, handler.getName(), handler.getSocket().getRemoteSocketAddress().toString());
     }
 
@@ -44,7 +44,7 @@ public class ChargingPileEventHandler implements ClientEventHandler {
 //        cachePile.put("status", DISCONNECTED);
 //        REDIS.setCacheMap(pkey, cachePile);
         handler.closeConnection();
-        log.info("-> ({}) - [{}] <- {}", pileNo, handler.getName(), handler.getSocket().getRemoteSocketAddress().toString());
+        log.info("<- ({}) - [{}] - {} ->", pileNo, handler.getName(), handler.getSocket().getRemoteSocketAddress().toString());
     }
 
 }
diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileServer.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileServer.java
index a4aa5029..22491592 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileServer.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/ChargingPileServer.java
@@ -78,6 +78,8 @@ public class ChargingPileServer {
     public static void removeHandler(String pileNo) {
 
         ClientHandler handler = handlerMap.remove(pileNo);
+        handler.closeConnection();
+        log.info("handler [{}] for ({}) close connection", handler.getName(), pileNo);
         String pkey = "pile:".concat(pileNo);
         Map<String, Object> cachePile = REDIS.getCacheMap(pkey);
         cachePile.put("status", DISCONNECTED);
@@ -102,11 +104,9 @@ public class ChargingPileServer {
                 }
             }
         }
-        if (handler != null) {
-            log.info("remove handler [{}] for ({})", handler.getName(), pileNo);
-            pileMap.remove(handler.getName());
-            versionMapper.remove(handler.getName());
-        }
+        log.info("remove handler [{}] for ({})", handler.getName(), pileNo);
+        pileMap.remove(handler.getName());
+        versionMapper.remove(handler.getName());
     }
 
     public static void sendClientMsg(String pileNo, byte[] msg) {
diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/HBCheckTask.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/HBCheckTask.java
new file mode 100644
index 00000000..68d51b77
--- /dev/null
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/server/HBCheckTask.java
@@ -0,0 +1,17 @@
+package com.xhpc.pp.server;
+
+import org.springframework.scheduling.annotation.Scheduled;
+import org.springframework.stereotype.Component;
+
+import java.io.IOException;
+
+@Component
+public class HBCheckTask {
+
+    @Scheduled(fixedRate = 1000)
+    protected void run() throws IOException {
+
+        System.out.println("hb check");
+    }
+
+}
diff --git a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/utils/security/CRCCalculator.java b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/utils/security/CRCCalculator.java
index 6d21b0b3..f2245a58 100644
--- a/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/utils/security/CRCCalculator.java
+++ b/xhpc-modules/xhpc-power-pile/src/main/java/com/xhpc/pp/utils/security/CRCCalculator.java
@@ -54,4 +54,9 @@ public class CRCCalculator {
         };
     }
 
+    public static void main(String[] args) {
+
+        System.out.println(calcCrc("6812001F00416985214589654800000000000000"));
+    }
+
 }