diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java b/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
index cadf0edc..7a809238 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/AppMaster.java
@@ -3,6 +3,7 @@ package com.xypower.mpmaster;
 import android.content.Context;
 import android.os.Environment;
 import android.os.PowerManager;
+import android.os.SystemClock;
 import android.text.TextUtils;
 import android.util.Pair;
 import android.util.Base64;
@@ -88,6 +89,10 @@ public class AppMaster {
         mService = null;
     }
 
+    private long getBootTime() {
+        return (System.currentTimeMillis() - SystemClock.elapsedRealtimeNanos() / 1000000) / 1000000;
+    }
+
     public void start() {
 
         new Thread(new Runnable() {
@@ -125,11 +130,12 @@ public class AppMaster {
                     List<Pair<String, String>> postParams = new ArrayList<>();
                     postParams.add(new Pair<String, String>("id", mCmdid));
                     postParams.add(new Pair<String, String>("XyDev", "1"));
+                    postParams.add(new Pair<String, String>("bootTime", Long.toString(getBootTime())));
                     postParams.add(new Pair<String, String>("i1Version", mService.getMpAppVersion()));
                     postParams.add(new Pair<String, String>("maintainVersion", mService.getMasterAppVersion()));
-
+                    
                     // postParams(httpURLConnection.getOutputStream(), postParams);
-                    buildParams(httpURLConnection.getOutputStream());
+                    buildParams(httpURLConnection.getOutputStream(), postParams);
                     httpURLConnection.connect();
                     inputStream = httpURLConnection.getInputStream();
 
@@ -467,14 +473,15 @@ public class AppMaster {
         }
     }
 
-    private void buildParams(OutputStream output) {
+    private void buildParams(OutputStream output, List<Pair<String, String>> params) {
         BufferedWriter bufferedWriter = null;
         OutputStreamWriter outputStreamWriter = null;
         try {
             JSONObject jsonObject = new JSONObject();
-            jsonObject.put("id", mCmdid);
-            jsonObject.put("i1Version", mService.getMpAppVersion());
-            jsonObject.put("maintainVersion", mService.getMasterAppVersion());
+
+            for (Pair<String, String> pair : params) {
+                jsonObject.put(pair.first, pair.second);
+            }
 
             outputStreamWriter = new OutputStreamWriter(output, "UTF-8");
             bufferedWriter = new BufferedWriter(outputStreamWriter);