diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..f9f76fa
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module myschools.me/suguo/device-k9l
+
+go 1.21.1
diff --git a/main.go b/main.go
index 7445f5d..3c26405 100644
--- a/main.go
+++ b/main.go
@@ -73,7 +73,7 @@ func processClient(conn net.Conn) {
 
 	for {
 		reader := bufio.NewReader(conn)
-		var buf [128]byte
+		var buf [1024]byte
 		n, err := reader.Read(buf[:])
 		if err != nil {
 			fmt.Println("read from client failed, err: ", err)
@@ -102,6 +102,7 @@ func messageWrite() {
 				fmt.Printf("%s[%s] reply write[%d]: %s\n", msg.DeviceID, msg.Conn.RemoteAddr(), n, msg.Payload)
 			}
 		case msg := <-platfromChan:
+			// fmt.Println(msg.pack())
 			n, err := msg.Conn.Write([]byte(msg.pack()))
 			if err != nil {
 				fmt.Printf("%s[%s] platfrom write[%d]: %v\n", msg.DeviceID, msg.Conn.RemoteAddr(), n, err)
@@ -125,6 +126,8 @@ func processContent(c *client) bool {
 		c.Payload = "LK"
 		reply = true
 	case "TKQ":
+		c.Payload = "TKQ"
+		reply = true
 	case "VERNO":
 		c.ver = content[1]
 	case "MESSAGE":
@@ -156,6 +159,16 @@ func processPlatfrom() {
 				continue
 			}
 
+			//计步通不过
+			if !c.step {
+				platfromChan <- &client{
+					Conn:     c.Conn,
+					DeviceID: c.DeviceID,
+					Payload:  "WALKTIME,00:00-23:59",
+				}
+				continue
+			}
+
 			//定位
 			if c.cr == "" {
 				platfromChan <- &client{
@@ -194,21 +207,6 @@ func processPlatfrom() {
 				}
 				continue
 			}
-
-			//计步通不过
-			if !c.step {
-				platfromChan <- &client{
-					Conn:     c.Conn,
-					DeviceID: c.DeviceID,
-					Payload:  "PEDO,1",
-				}
-				platfromChan <- &client{
-					Conn:     c.Conn,
-					DeviceID: c.DeviceID,
-					Payload:  "WALKTIME,00:00-23:59",
-				}
-				continue
-			}
 		}
 		time.Sleep(5 * time.Second)
 	}