NB-IoT物联网水表

• 产品特点
• 周期上报:默认24小时上传一次数据，时间上离散，保证项目区域内的远传水表都能正常上传数据;
• 上传数据内容:数据包含NB信号数据、周期采样数据、上传当前采样数据、告警数据、电池电压以及NB模组信息;
• 蓝牙上报:增加蓝牙通道，使水表上传当前数据;
• 数据存储:断电情况下，表内数据须至少保存十年;能够保证再次通电后数据自动恢复;报警功能:当远传水表出现电池电压低、存储故障、采样;
• 出现故障、阀门故障等问题时上报异常数据至后台系统;
• 阀门控制:可远程或者手持设备控制水表阀门的开和关。

Product features
Periodic reporting: By default, data is uploaded every 24 hours, with discrete time intervals to ensure that all remote water meters within the project area can upload data normally;
Upload data content: The data includes NB signal data, periodic sampling data, uploaded current sampling data, alarm data, battery voltage, and NB module information;
Bluetooth reporting: Add Bluetooth channel to enable the water meter to upload current data;
Data storage: In case of power outage, the data in the table must be stored for at least ten years; Can ensure automatic data recovery after power on again; Alarm function: When the remote water meter experiences low battery voltage, storage failure, or sampling;
Report abnormal data to the backend system when problems such as malfunctions or valve malfunctions occur;
Valve control: The opening and closing of water meter valves can be controlled remotely or by handheld devices.

产品参数 Product parameters	参数值 Parameter values
工作频段 Working frequency band	B3、B5、B8(国内)、 B20、B28(国外)国内外专网
工作电压 Working voltage	2.7~3.6V
静态功耗 Static power consumption	<10uA
发射电流 Emission Current	<280mA
接收电流 Receiving Current	<100mA
发射功率 Transmission power	23dBm
信号灵敏度 Signal sensitivity	-128±1dBm
工作温度 Operation temperature	-20~75°℃
工作湿度 Working humidity	0~95%,无冷凝 No condensation
唤醒时间 Wake-up time	定时唤醒、实时触发 Timed wake-up and real-time triggering
无线阻抗 Wireless impedance	50Ω