LoRa module is an ultra-long-distance wireless transmission scheme based on spread-spectrum technology. This solution changes the previous compromise between transmission distance and power consumption, and provides users with a simple system that can achieve long distances, long battery life, and large capacity. LoRa technology has the characteristics of long distance, low power consumption, and low cost. LoRaWAN-based networks can provide secure two-way communication with long-distance data transmission, and cover urban areas with minimal network infrastructure. LoRa technology is used in smart agriculture, smart buildings, It will be widely used in various application scenarios such as smart logistics.
It can be divided into three parts: water meter, LoRa module and LoRa data concentrator. The main function of the water meter is flow statistics, sending pulse signals to the LoRa module. The main function of the LoRa module is to receive water meter data, emergency shut-off valves and wireless transmission data. The main function of the LoRa data concentrator is to receive instructions from the workstation, to manage the water meter, to collect and upload data.
Water meter, LoRa module and LoRa data concentrator adopt LoRa communication, which is mainly used for LoRa data concentrator to read the data in the water meter. The LoRa data concentrator uses GPRS, 3G, or 4G communication when receiving instructions from the workstation and uploading data. When the workstation needs to read the meter, the meter reading instruction is sent through the SIM card network. After receiving the instruction, the LoRa data concentrator sends the meter reading instruction to the water meter through LoRa communication.After the water meter receives the instruction, it returns the data to the LoRa data concentrator and LoRa data concentrator The received data is returned to the management platform, so as to realize the process of wireless meter reading.
The concentrator can be used with repeaters, and the network consisting of repeaters is sufficient to provide the breadth of the entire cell.
The smart water meter using LoRa technology can accurately and quickly collect and record the real-time water consumption data of residents, improving work efficiency and ensuring service quality. During the peak period of water consumption, the user water information system can comprehensively monitor and balance the regional water consumption situation, thereby effectively protecting the production and residential water consumption of enterprises.