diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
index d0d1fbbd..5a3ca828 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/MpMasterService.java
@@ -52,6 +52,10 @@ import java.text.SimpleDateFormat;
 import java.util.Arrays;
 import java.util.Date;
 import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import java.util.concurrent.atomic.AtomicInteger;;
@@ -144,6 +148,29 @@ public class MpMasterService extends Service {
     private String mIccid1 = null;
     private String mIccid2 = null;
 
+    //用于创建单例线程保证该线程在项目中唯一
+    private static final AtomicBoolean created = new AtomicBoolean(false);
+//    private static Thread batteryVoltageThread;
+
+//    public static Thread getInstance(Runnable runnable) {
+//        if (!created.getAndSet(true)) {
+//            batteryVoltageThread = new Thread(runnable);
+//            batteryVoltageThread.start();
+//        }
+//        return batteryVoltageThread;
+//    }
+
+
+    private static ExecutorService batteryVoltageThread;
+
+    public static synchronized ExecutorService getSingleThreadExecutor() {
+        if (batteryVoltageThread == null || batteryVoltageThread.isShutdown()) {
+            batteryVoltageThread = Executors.newSingleThreadExecutor();
+        }
+        return batteryVoltageThread;
+    }
+
+
     AtomicInteger reqCode = new AtomicInteger(0);
 
     public MpMasterService() {
@@ -427,7 +454,7 @@ public class MpMasterService extends Service {
 
                 if (!isMpAppRunning) {
                     // Restart MpApp
-                    MpMasterService.restartMpApp(context,"MpMST Keep Alive Detection: NO Lock");
+                    MpMasterService.restartMpApp(context, "MpMST Keep Alive Detection: NO Lock");
                     logger.warning("Restart MpAPP as There is NO Lock");
                     mTimeToStartMpApp = ts;
                     return;
@@ -443,7 +470,7 @@ public class MpMasterService extends Service {
                 // MpApp is not running
                 if (ts - mTimeToStartMpApp >= 1800000) { // 30 minutes 30 * 60 * 1000
                     if (false) {
-                        MpMasterService.restartMpApp(context.getApplicationContext(),"MpMST Keep Alive Detection");
+                        MpMasterService.restartMpApp(context.getApplicationContext(), "MpMST Keep Alive Detection");
                     }
 
                     logger.warning("Restart MpAPP as it is NOT Running Prev MPAPP HB=" +
@@ -694,7 +721,7 @@ public class MpMasterService extends Service {
                 int restart = intent.getIntExtra("restart", 0);
                 mService.logger.info("Update Config Fired ACTION=" + action + " restart=" + restart);
                 if (restart != 0) {
-                    MpMasterService.restartMpMasterApp(context,"Config Updated");
+                    MpMasterService.restartMpMasterApp(context, "Config Updated");
                 } else {
                     mService.loadConfig();
                     mService.registerHeartbeatTimer();
@@ -1087,20 +1114,37 @@ public class MpMasterService extends Service {
     }
 
     private void buildChargingBatteryVoltage(long ts) {
-        int val = 0;
-        for (int idx = 0; idx < 3; idx++) {
-            val = MpMasterService.getInt(112);
-            if (val > 0) {
-                break;
-            }
+        if (batteryVoltageThread != null && !batteryVoltageThread.isShutdown()) {
+            logger.info("电压线程在执行退出");
+            return;
         }
-
-        if (val > 0) {
-            if (val > mMaxBCV) {
-                mMaxBCV = val;
-                mMaxBCVTime = ts;
+        getSingleThreadExecutor().execute(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    Thread.sleep(1000);
+                } catch (InterruptedException e) {
+                    throw new RuntimeException(e);
+                }
+                logger.info("电压线程编号" + batteryVoltageThread.hashCode());
+                int val = 0;
+                for (int idx = 0; idx < 3; idx++) {
+                    logger.info("电压测试第" + idx + "次开始读取");
+                    val = MpMasterService.getInt(112);
+                    logger.info("电压测试第" + idx + "次读取结束 " + val);
+                    if (val > 0) {
+                        break;
+                    }
+                }
+                if (val > 0) {
+                    if (val > mMaxBCV) {
+                        mMaxBCV = val;
+                        mMaxBCVTime = ts;
+                    }
+                }
             }
-        }
+        });
+
     }
 
     public String getAndResetMaxBCV() {
@@ -1163,7 +1207,7 @@ public class MpMasterService extends Service {
                 if (rebootType == 0) {
                     logger.warning("Recv REBOOT MpMst APP cmd");
                     Context context = MpMasterService.this.getApplicationContext();
-                    MpMasterService.restartMpMasterApp(context,reason);
+                    MpMasterService.restartMpMasterApp(context, reason);
                 } else {
                     logger.warning("Recv RESET cmd");
                     SysApi.reboot(MpMasterService.this.getApplicationContext());
@@ -1256,8 +1300,8 @@ public class MpMasterService extends Service {
         return 0;
     }
 
-//重启运维应用
-    public static void restartMpMasterApp(Context context,String reason) {
+    //重启运维应用
+    public static void restartMpMasterApp(Context context, String reason) {
         Intent intent = new Intent(context, MainActivity.class);
         if (intent != null) {
             if (!TextUtils.isEmpty(reason)) {
@@ -1270,7 +1314,7 @@ public class MpMasterService extends Service {
         System.exit(0);
     }
 
-//重启MpApp应用
+    //重启MpApp应用
     public static void restartMpApp(Context context, String reason) {
 
         SysApi.forceStopApp(context, MicroPhotoContext.PACKAGE_NAME_MPAPP);
@@ -1295,8 +1339,8 @@ public class MpMasterService extends Service {
         }
     }
 
-//根据包名重启应用
-    public static void restartAppByPackage(Context context,String packagename, String reason) {
+    //根据包名重启应用
+    public static void restartAppByPackage(Context context, String packagename, String reason) {
 
         SysApi.forceStopApp(context, packagename);
         try {
@@ -1390,7 +1434,7 @@ public class MpMasterService extends Service {
                     }
                 }
                 copyAssetsDir(context, "mpapp/data", tmpDestPath.getAbsolutePath());
-                MpMasterService.restartMpApp(context.getApplicationContext(),"FIRST Config Init");
+                MpMasterService.restartMpApp(context.getApplicationContext(), "FIRST Config Init");
             }
         };