diff --git a/conf/gateway.conf b/conf/gateway.conf
index a7b1ee0..0a4f249 100644
--- a/conf/gateway.conf
+++ b/conf/gateway.conf
@@ -123,14 +123,14 @@
 	],
 	"serialports_list": {
 		"loraport": {
-			"com": "/dev/cu.wchusbserial141420",
-			"bauds": 115200,
-			"size": 8,
-			"parity": "E",
-			"stopbits": 1,
-			"readtimeout": 100,
-			"note": "lorawan"
-		}
+        			"com": "/dev/cu.wchusbserial141420",
+        			"bauds": 115200,
+        			"size": 8,
+        			"parity": "E",
+        			"stopbits": 1,
+        			"readtimeout": 100,
+        			"note": "lorawan"
+        		}
 	},
 	"rs485devices": {
 		"15394892-E8B0-4FF2-BC35-1BF380BD1B68": {
@@ -211,5 +211,6 @@
 	"post_to_server": "https://smartoilets.cn/socketServer/statis/push",
 	"debug": true,
 	"openserial":false,
-	"open_tcp_server":false
+	"open_tcp_server":false,
+	"check_serial":true
 }
diff --git a/loadconfig.go b/loadconfig.go
index 100707e..1eed320 100644
--- a/loadconfig.go
+++ b/loadconfig.go
@@ -33,6 +33,7 @@ type Conf struct {
 	WIRELESSSLAVEDEVICES []WirelessSlaveDevice `json:"wireless_slave_devices"`
 	//是否启动tcpserver
 	OPENTCPSETVER bool `json:"open_tcp_server"`
+	CHECKSERIAL   bool `json:"check_serial"`
 }
 
 //无线 下位机
@@ -92,6 +93,24 @@ func init() {
 	check(err)
 	var device Device
 
+	//var serialPort = make(map[string]int)
+	//for k, i := range conf.SERIALPORTS_LIST {
+	//	log.Println(k)
+	//	log.Println(i)
+	//	if v, c := serialPort[k]; c {
+	//		log.Println("repeatd serial port:", v)
+	//		os.Exit(3)
+	//	} else {
+	//		serialPort[k] = 0
+	//	}
+	//}
+
+	//log.Println("begin print serialPort")
+	//for k, i := range serialPort {
+	//	log.Println(k)
+	//	log.Println(i)
+	//}
+
 	log.Println("slaveDevices:", conf.WIRELESSSLAVEDEVICES)
 
 	// for _,i := range conf.WIRELESSSLAVEDEVICES{
@@ -101,14 +120,27 @@ func init() {
 
 	DEVICEDATAS.Lock()
 	DEVICEDATAS.DATA = make(map[string]Device)
+
+	//校验是否有设置重复串口
+	//var serialPort = make(map[string]int)
+
 	//初始化设备，目前conf.DEVICES_LIST
 	for _, i := range conf.DEVICES_LIST {
+
+		//if _, c := serialPort[i[1]]; c {
+		//	log.Println("repeatd serial port:", i[1])
+		//	os.Exit(3)
+		//} else {
+		//	serialPort[i[1]] = 0
+		//}
+
 		device.DATA = make(map[string]interface{})
 		device.ID = i[0]
 		device.VERSION = i[2]
 		//版本号+编号
 		DEVICEDATAS.DATA[i[2]+"_"+i[3]] = device
 	}
+
 	DEVICEDATAS.Unlock()
 
 	demoDevice.ID = "deb03e28-ddcb-4e5d-aa31-d870a1f0f09b"
diff --git a/serial_init.go b/serial_init.go
index ba887b8..5ce5e69 100644
--- a/serial_init.go
+++ b/serial_init.go
@@ -11,6 +11,7 @@ func serial_run() {
 	SERIAL_PORT := make(map[string]*serial.Port)
 	ports_arr := make([]string, 0)
 	port_arr := make([]string, 0)
+
 	for _, i := range conf.DEVICES_LIST {
 		ports_arr = append(ports_arr, i[1])
 	}
@@ -46,7 +47,7 @@ func serial_run() {
 	}
 
 	if conf.DEBUG {
-		log.Println(SERIAL_PORT)
+		log.Println("SERIAL_PORT:",SERIAL_PORT)
 	}
 	// 遍历设备对应的串口对应的端口，并放到相应的run_port_device方法
 	for j, k := range SERIAL_PORT {