diff --git a/src/main/java/com/telpo/dipperposition/service/impl/DipperAstPosAsyncTaskServiceImpl.java b/src/main/java/com/telpo/dipperposition/service/impl/DipperAstPosAsyncTaskServiceImpl.java
index f6b4d80..5417f94 100644
--- a/src/main/java/com/telpo/dipperposition/service/impl/DipperAstPosAsyncTaskServiceImpl.java
+++ b/src/main/java/com/telpo/dipperposition/service/impl/DipperAstPosAsyncTaskServiceImpl.java
@@ -209,38 +209,26 @@ public class DipperAstPosAsyncTaskServiceImpl implements IDipperAstPosAsyncTaskS
         //  A0 86 01 00 表示注入的位置精度为 1000 米 0186a0
         //  00 2F 为校验和
 
-        // astTimeCmd 组装
-        String astTimeCmd = "23 3E 04 01 ";
-        astTimeCmd += "10 00 ";
-        byte[] lanBytes = HexConvert.hexStringToBytes(HexConvert.encodeHEX(lanLongValue).toUpperCase());
-
-        byte[] altBytes = HexConvert.hexStringToBytes(HexConvert.encodeHEX(altLongValue).toUpperCase());
-
-        StringBuffer lanBuf = new StringBuffer();
-        for(int i=0; i<lanBytes.length; i++) {
-            String s = Integer.toHexString(lanBytes[i] & 0xff);
+        // astPosCmd 组装
+        String astPosCmd = "233E0401";
+        astPosCmd += "1000";
+        astPosCmd += HexConvert.hexStringToBytes(HexConvert.encodeHEX(lanLongValue).toUpperCase());
+        astPosCmd +=  HexConvert.hexStringToBytes(HexConvert.encodeHEX(altLongValue).toUpperCase());
+        astPosCmd += "70170000";
+        astPosCmd += "A0860100";
+
+        byte[] astPosCmdBytes = HexConvert.hexStringToBytes(astPosCmd);
+        StringBuffer astPosCmdBuf = new StringBuffer();
+        for(int i=0; i<astPosCmdBytes.length; i++) {
+            String s = Integer.toHexString(astPosCmdBytes[i] & 0xff);
             if (s.length() < 2) {
-                lanBuf.append('0');
+                astPosCmdBuf.append('0');
             }
-            lanBuf.append(s + " ");
+            astPosCmdBuf.append(s + " ");
         }
 
-        StringBuffer altBuf = new StringBuffer();
-        for(int i=0; i<altBytes.length; i++) {
-            String s = Integer.toHexString(altBytes[i] & 0xff);
-            if (s.length() < 2) {
-                altBuf.append('0');
-            }
-            altBuf.append(s + " ");
-        }
-
-        astTimeCmd += lanBuf;
-        astTimeCmd += altBuf;
-        astTimeCmd += "70 17 00 00 ";
-        astTimeCmd += "A0 86 01 00 ";
-
-        String checkSum = HexConvert.makeChecksum(astTimeCmd).toUpperCase();
-        return astTimeCmd + checkSum.substring(0,1) + " " + checkSum.substring(2,3);
+        String checkSum = HexConvert.makeChecksum(astPosCmd).toUpperCase();
+        return astPosCmdBuf.toString() + checkSum.substring(0,1) + " " + checkSum.substring(2,3);
 
     }
 }
diff --git a/src/main/java/com/telpo/dipperposition/service/impl/DipperAstTimeAsyncTaskServiceImpl.java b/src/main/java/com/telpo/dipperposition/service/impl/DipperAstTimeAsyncTaskServiceImpl.java
index bacbe26..f5af6a0 100644
--- a/src/main/java/com/telpo/dipperposition/service/impl/DipperAstTimeAsyncTaskServiceImpl.java
+++ b/src/main/java/com/telpo/dipperposition/service/impl/DipperAstTimeAsyncTaskServiceImpl.java
@@ -43,25 +43,25 @@ public class DipperAstTimeAsyncTaskServiceImpl implements IDipperAstTimeAsyncTas
         // 00 5E D0 B2 表示 3 秒的时间精度（十六进制 B2 D0 5E 00 转为十进制为3000000000，乘以比 例因子 10-9就是 3 秒 小端模式00 5E D0 B2）
         // 00 2F 为校验和
         // TODO astTimeCmd 组装
-        String astTimeCmd = "23 3E 04 02 ";
-        astTimeCmd += "10 00 ";
-        astTimeCmd += "20 E1 ";
+        String astTimeCmd = "233E0402";
+        astTimeCmd += "1000";
+        astTimeCmd += "20E1";
         LocalDateTime now = LocalDateTime.now();
         int year = now.getYear();
         int month = now.getMonthValue();
         int day = now.getDayOfMonth();
         String hexYearString = Integer.toHexString(year);
         hexYearString = "0" + hexYearString;
-        astTimeCmd += hexYearString.substring(2,3).toUpperCase() + " " + hexYearString.substring(0,1).toUpperCase() + " ";
+        astTimeCmd += hexYearString.substring(2,3).toUpperCase() + hexYearString.substring(0,1).toUpperCase();
         String hexMonthString = Integer.toHexString(month);
         hexMonthString = "0" + hexMonthString;
-        astTimeCmd += hexMonthString.toUpperCase() + " ";
+        astTimeCmd += hexMonthString.toUpperCase();
 
         String hexDayString = Integer.toHexString(day);
         if (day < 16) {
             hexDayString = "0" + hexDayString;
         }
-        astTimeCmd += hexDayString.toUpperCase() + " ";
+        astTimeCmd += hexDayString.toUpperCase();
 
         int hour = now.getHour();
         int minitor = now.getMinute();
@@ -70,22 +70,32 @@ public class DipperAstTimeAsyncTaskServiceImpl implements IDipperAstTimeAsyncTas
         if (hour < 16) {
             hexHourString = "0" + hexHourString;
         }
-        astTimeCmd += hexHourString.toUpperCase() + " ";
+        astTimeCmd += hexHourString.toUpperCase();
         String hexMinitorString = Integer.toHexString(minitor);
         if (minitor < 16) {
             hexMinitorString = "0" + hexMinitorString;
         }
-        astTimeCmd += hexMinitorString.toUpperCase() + " ";
+        astTimeCmd += hexMinitorString.toUpperCase();
         String hexSecondString = Integer.toHexString(second);
         if (second < 16) {
             hexSecondString = "0" + hexSecondString;
         }
-        astTimeCmd += hexSecondString.toUpperCase() + " ";
-        astTimeCmd += "00 00 00 00 00 ";
-        astTimeCmd += "00 5E D0 B2 ";
+        astTimeCmd += hexSecondString.toUpperCase();
+        astTimeCmd += "0000000000";
+        astTimeCmd += "005ED0B2";
+
+        byte[] astTimeCmdBytes = HexConvert.hexStringToBytes(astTimeCmd);
+        StringBuffer astTimeCmdBuf = new StringBuffer();
+        for(int i=0; i<astTimeCmdBytes.length; i++) {
+            String s = Integer.toHexString(astTimeCmdBytes[i] & 0xff);
+            if (s.length() < 2) {
+                astTimeCmdBuf.append('0');
+            }
+            astTimeCmdBuf.append(s + " ");
+        }
 
         String checkSum = HexConvert.makeChecksum(astTimeCmd).toUpperCase();
-        return astTimeCmd + checkSum.substring(0,1) + " " + checkSum.substring(2,3);
+        return astTimeCmdBuf.toString() + checkSum.substring(0,1) + " " + checkSum.substring(2,3);
         //String hexIn = astTimeCmd + HexConvert.makeChecksum(astTimeCmd);
         //log.info("DipperAstTimeAsyncTaskServiceImpl 返回时间：" + hexIn);