Customer Requirements
● Real-time Meter Reading: On-time and accurate water meters reading in various regions of the city, closely tracking and optimizing water usage, to improve water resource management efficiency.
● Secure and reliable communication between meters and monitoring center: Robust communication with redundancy mechanisms ensures uninterrupted data transmission to the central monitoring center.
● Reliable operation for long periods of unattended environments: Design durable hardware resistant to environmental factors, coupled with energy-efficient components, for consistent, long-term operation in unattended or challenging settings.
Our Solution
The water company provides water supply for both downtown and suburban areas. In the downtown area, water meters were installed in every resident’s house; in suburban areas, meters were installed separately at each villa, and usually, the distance between two villas was 500m to 5km. Based on the requirements of water meter automatic reading, we provided 4G cat.1 based solution. For the downtown areas, we used DT7710 industrial 4G cat.1 modem to connected with the concentrator by RS485 bus in each apartment; for suburban areas, we used DT7710 to connect directly to the meter of each villa. In each 4G cat.1 modem, embedded a SIM card provided by local mobile operator. These SIM cards could provide private APN (Private Access Point Network) service which prevented access from public internet and also enabled the access from the water company’s data center to a certain remote meter. (You can consult your local mobile operator about private APN and SIM card).
