1.消防物联网系列传感器终端，采用LoRa无线通信技术，产品分为sLoRa和eLoRa两个类型，均采用串口进行配置，支持本文规定的AT指令集。sLoRa为连接传感器的LoRa终端设备，实现传感器数据采集和上报功能，sLoRa同时支持物理层、网络层和应用层的AT指令集。
2.产品在部署之前如果没有用AT命令进行过配置，则讲自动进入到AT命令模式。
3.AT指令参数说明：
4.通用配置AT指令集
（1）AT+CMD=?
1，打开AT指令状态；
0，关闭AT指令状态
sLoRa开机运行，只分析串口收到的首条报文，若为AT+CMD=1，则进入配置模式，否则进入报文收发模式。
（2）AT+GMI 查询产品通用信息（Product information ）
+-----------------------------------------------------+
| WuHan LingYun IoT System Studio LoRa Node Terminal
| Serial Number:
| Hardware Version: v1.0
| Software Version: v0.1 build <Jul 25 2018 18:38:20>
+-----------------------------------------------------+
(3)AT+SN=?
yywwttcccccc
yyww： 年和周代号，十进制数，2byte数字，1527，2015年第27周；
tt：类型代号：01-eLoRa，02-sLoRa，03-网桥
cccccc：序列号，3byte 16进制数字，0x000001～0xffffff。
例如:152701000001：2015年27周生产的eLoRa，序列号0x000001
+-----------------------------------------------------+
| WuHan LingYun IoT System Studio LoRa Node Terminal |
| Serial Number: |
| Hardware Version: v1.0 |
| Software Version: v0.1 build <Jul 25 2018 18:38:20> |
+-----------------------------------------------------+
ERROR: LoRa Node Terminal not load manufacture configuration
LoRa Node Terminal comes into AT command mode.
+-------------------------+-----------------------------------------------------+
| WuHan LingYun IoT System Studio LoRa Node Terminal |
| Serial Number: |
| Hardware Version: v1.0 |
| Software Version: v0.1 build <Jul 25 2018 18:38:20> |
+-----------------------------------------------------+
ERROR: LoRa Node Terminal not load manufacture configuration
LoRa Node Terminal comes into AT command mode.
AT+CMD=0
Exit AT command mode now
LoRa Node Terminal comes into AT command mode.
AT+SN=?
+SN: (YYWWTTCCCCCC)
OK
AT+SN:15310200002
+SN:
OK
AT+GMI
+-----------------------------------------------------+
| WuHan LingYun IoT System Studio LoRa Node Terminal |
| Serial Number: |
| Hardware Version: v1.0 |
| Software Version: v0.1 build <Jul 25 2018 18:38:20> |
+-----------------------------------------------------+
AT+RF=5,7,2,20,1
+RF: 5,7,2,20,1
OK
AT+TCXO=1
+TCXO: 1
OK
AT+ADDR=255,
+ADDR: [NetworkID(0~65535)],[DeviceID(1~255)]
OK
AT+?=
Current Support AT command:
+?
+CMD
+GMI
+SN
+RF
+TCXO
+ADDR
+SMODE
+SENSOR
+POWER
+CONF
+INI
AT+SMODE=?
+SMODE: [ReportIntervalTime],[TxNum],[RxTiemout]
[ReportIntervalTime] : 0-65535s, default [900]
[TxNum] : 0-5, default [3]
[RxTimeout] : 0-65535ms, default [1500]
5AT+SMODE=9003,1500
+SMODE: [ReportIntervalTime],[TxNum],[RxTiemout]
[ReportIntervalTime] : 0-65535s, default [900]
[TxNum] : 0-5, default [3]
[RxTimeout] : 0-65535ms, default [1500]
AT+SMODE=90,3,1500
+SMODE: 90,3,1500
OK
AT+SENSOR=?
+SENSOR: [Type<0~255>]
OK
AT+SENSOR=1
+SENSOR: 1
OK
AT+POWER=1
+POWER: 1
OK
AT+CONF=?
Serial Number :
RF carrier frequency: 490MHz
Bandwidth : 125kHz
Spreading Factor : 12
Tx Power : 20dBm
Cyclic Coding Rate : 4/5
Clock : TCXO
Network address : 1
Device address : 1
Report interval : 600
Power supply : Battery
Sensor Type : [0]
OK