diff --git a/Module/LaserTracing_Debug/UartDebug.c b/Module/LaserTracing_Debug/UartDebug.c
index 3742f21..7f0ca2b 100644
--- a/Module/LaserTracing_Debug/UartDebug.c
+++ b/Module/LaserTracing_Debug/UartDebug.c
@@ -840,6 +840,32 @@ static void DebugCmdReboot(int argc, char *argv[])
 	while(1);
 }
 
+
+/*****************************************************************************************
+* Function: DebugCmdSignal
+* Description: 信号质量查询
+* Input: argc, 参数个数
+                     argv, 参数列表
+* Output: 无
+*****************************************************************************************/
+static void DebugCmdSignal(int argc, char *argv[])
+{
+	DBG_LOG("\r\n");
+	if(argc > 1)
+	{
+		if(strcmp(argv[1], "?") == 0) {
+			DBG_LOG("Debug Cmd: sig\r\n");
+			DBG_LOG("  brief --> Query signal quality with gateway.\r\n");
+			return;
+		}
+	}
+
+	if(SGCP.GWStatus != GW_STATUS_IDLE) {
+		DBG_LOG("Device is busy, please try again later.\r\n");
+		return;
+	}
+	SGCP.GWStatus = GW_STATUS_SIGNAL;
+}
 void DebugCmdHelp(int argc, char *argv[])
 {
 	DBG_LOG("\r\n");
@@ -988,6 +1014,16 @@ void DebugCmdHelp(int argc, char *argv[])
         token = strtok(NULL, " ");
 	}
 	DebugCmdReboot(argc1, argv1);
+
+	memset(Data, 0x00, 10);
+	len = strlen("sig ?\0");
+	memcpy(Data, "sig ?\0", len);
+	token = strtok(Data, " ");
+	for(argc1 = 0; (token != NULL && argc1 < 10); argc1++) {
+        argv1[argc1] = token;
+        token = strtok(NULL, " ");
+	}
+	DebugCmdSignal(argc1, argv1);
 }
 
 const DBGFunType DebugFun[DEBUG_CMD_CNT] = {
@@ -1006,6 +1042,7 @@ const DBGFunType DebugFun[DEBUG_CMD_CNT] = {
 	"res",				DebugCmdRestoreFactory,
 	"dch",				DebugCmdChannel,
 	"reboot",			DebugCmdReboot,
+	"sig",				DebugCmdSignal,
 };
 #endif
 
diff --git a/source/inc/SGCP.h b/source/inc/SGCP.h
index d2d4a0c..be0afe1 100644
--- a/source/inc/SGCP.h
+++ b/source/inc/SGCP.h
@@ -102,6 +102,8 @@ typedef enum {
 	GW_STATUS_UPLOAD_SENSOR,//主动上报模式时会使用该状态
 	GW_STATUS_WAIT_UPLOAD,//主动上报模式时会使用该状态
 	GW_STATUS_LASER_STARES,//激光状态回应
+	GW_STATUS_SIGNAL,
+	GW_STATUS_WAIT_SIGNAL,
 }GWStatus_m;
 /*接收主设备数据状态机*/
 typedef enum {
@@ -126,6 +128,7 @@ typedef enum {
 	GWTOMD_CMD_SET_COL_TIME = 0x05,			//0x05，设置采集时间间隔
 	GWTOMD_CMD_SYNC_TIME = 0x06,				//0x06，时间同步 
 	GWTOMD_CMD_SET_LASER = 0x08,//打开or关闭激光
+	GWTOMD_CMD_SIGNAL = 0x09,
 }GWTOMD_CMD_M;
 
 /*主设备到子设备命令集*/
@@ -270,6 +273,8 @@ typedef struct {
 	
 	/**激光示踪私有**/
 	bool LaserOnOff;								//打开与关闭激光标志位
+	int8_t SignalRSSI;
+	int8_t SignalSNR;
 }SGCP_t;
 extern SGCP_t SGCP;
 
diff --git a/source/src/SGCP.c b/source/src/SGCP.c
index 77fb4d0..d145636 100644
--- a/source/src/SGCP.c
+++ b/source/src/SGCP.c
@@ -535,6 +535,43 @@ SGCP.GWRS485Rx.sCmdMDToGW = (GWTOMD_CMD_M)GFHeader->Cmd;
 	LPUart0SendArray(Pack, Len);
 #endif
 }
+
+/**
+ *******************************************************************************
+ ** \brief 信号质量查询指令
+ **
+ ** \param 无
+ **
+ ** \retval 无
+ ******************************************************************************/
+static void ToGWSignalQuery(void)
+{
+	uint8_t Pack[256];
+	uint16_t Crc16;
+	uint8_t Len;
+
+	GatewayFrameHeader GFHeader = (GatewayFrameHeader)Pack;
+
+	GFHeader->Header = 0x7B;
+	memset(&GFHeader->GWAddr[0], 0x00, sizeof(GFHeader->GWAddr));
+	memcpy(&GFHeader->MDAddr[0], &LocalMAC[0], sizeof(GFHeader->MDAddr));
+	GFHeader->Cmd = GWTOMD_CMD_SIGNAL;
+	GFHeader->PayloadLen = 0;
+
+	Len = sizeof(GatewayFrameHeader_t);
+
+	Crc16 = CRC_Modbus(CRC16_BASE, Pack, Len);
+	Pack[Len++] = Crc16 & 0x00ff;
+	Pack[Len++] = (Crc16 >> 8) & 0x00ff;
+
+	SGCP.GWRS485Rx.sCmdMDToGW = (GWTOMD_CMD_M)GFHeader->Cmd;
+#if(SGCP_SELECT == 1 || SGCP_SELECT == 2)
+	Sx1276LoRaSendBuffer(Pack, Len);
+#endif
+#if(SGCP_SELECT == 3)
+	LPUart0SendArray(Pack, Len);
+#endif
+}
 /**
  *******************************************************************************
  ** \brief 网关读取数据指令回应
@@ -1069,6 +1106,11 @@ static void GWRevHandler(void)
 				}
 			}
 		break;}
+
+		case GWTOMD_CMD_SIGNAL:{
+			SGCP.SignalSNR = PayLoad[0];
+			SGCP.SignalRSSI = PayLoad[1];
+		break;}
 	}
 	SGCP.Gateway_IRQ_Status = true;
 }
@@ -1835,6 +1877,33 @@ void GwRevLoopHandler(void)
 			}
 			SGCP.GWStatus = GW_STATUS_IDLE;
 		break;}
+
+		case GW_STATUS_SIGNAL:{
+			DBG_LOG("Query signal quality...\r\n");
+			SGCP.Gateway_IRQ_Status = false;
+			ToGWSignalQuery();
+			SGCP.GW1mSDelayCnt = 2000;
+			SGCP.GWStatus = GW_STATUS_WAIT_SIGNAL;
+		break;}
+
+		case GW_STATUS_WAIT_SIGNAL:{
+			if(SGCP.GW1mSDelayCnt <= 0)
+			{
+				DBG_LOG("Signal query timeout!\r\n");
+				SGCP.GWStatus = GW_STATUS_IDLE;
+				break;
+			}
+			if(SGCP.Gateway_IRQ_Status == true)
+			{
+				SGCP.Gateway_IRQ_Status = false;
+				int8_t localSNR, localRSSI;
+				SX1276LoCalcRssiSnr(&localRSSI, &localSNR);
+				DBG_LOG("Signal Quality:\r\n");
+				DBG_LOG("  TX(Dev->GW): SNR:%d, RSSI:%d\r\n", SGCP.SignalSNR, SGCP.SignalRSSI);
+				DBG_LOG("  RX(GW->Dev): SNR:%d, RSSI:%d\r\n", localSNR, localRSSI);
+				SGCP.GWStatus = GW_STATUS_IDLE;
+			}
+		break;}
 	}
 }