The following are the findings of the Shenzhen Gas experiment with China Telecom, Huawei, and Goldcard:
- In field tests, the coverage was good, with an average uplink rate of 13 kbps and a downstream rate of 7.8 kbps, which is enough for meter reading.
- In typical operations, the meter reading success rate was 100 percent.
- In comparison to other networks, NB-IoT provides substantial coverage benefits.
- The meter reading accuracy was likewise 100 percent when comparing real readings on gas meters with data obtained by the system.
NB-IoT consumes a fraction of the electricity that GPRS does.
- User registration, tariff adjustment, prepayment data, remote valve control, remote meter reading, and remote parameter setting were all completed successfully on the meter head-end service platform, all of which matched the test case criteria.
Both the Shenzhen Gas and Shenzhen Water NB-IoT deployments were a success, with all meters installed being able to connect in a secure way and providing far better service than prior versions of the respective metering systems. The installations have shown that NB-IoT can gather the needed data and regulate the appropriate variables across gas and water meters, indicating that NB-IoT is versatile, scalable, and suited for a range of use cases, while letting each industry build their services as they see suitable. The tests have shown that mobile carriers are ideal partners for gas or water companies wishing to implement smart meters and that their IoT platforms and services are a suitable fit for industrial demands. NB-IoT is an excellent solution for Chinese utilities because of its scalability, security, and functionality, as well as its ability to satisfy their unique goals.