NB-IoT Gas Meter based on NB-loT communication technology, with all the advantage like wide area ubiquitous coverage, fast upgrade of existing network, low-power consumption guaranteeing for 10 years battery life, high coupling, low cost terminal, plug and play, high reliability and high carrier-class network security, unified business platform management. Initial network investment may be quite substantial and superimposed costs are very little. The strong growth in the NB-loT market has motivated many analyst firms to create forecasts showing the expected number of connections as well as the revenue potential. Generally, the global loT market is expected to be worth trillions of dollars by 2020.
1. Basic Functions: 1.1 Accumulation Function NB-IoT Gas Meter can accumulate the consumed water volume/credit based on one month interval. 1.2 Meter Recharge After purchasing water, customer can recharge meter by [customer card]. 1.3 Anti-Storage Function When purchased credit plus balance credit in meter > stock limitation, the credit in [customer card] can not be transferred into meter to prevent water storage. 1.4 Insufficient Water Warning When balance credit equals to alarm value, buzzer beeps and valve will close once to remind customers that the water is about to used up. Valve can be switched on for continuously usage of water by [customer card] until balance credit becomes 0.. 1.5 Overdraft Function When balance credit becomes 0, if overdraft function is activated, customer can use [Customer Card] to open valve for continuous usage of water until the overdraft consumed credit equals to preset value, valve will be closed automatically. 1.6 Monthly Consumption Limitation When monthly accumulated water consumption is more than monthly consumption limitation, valve will be closed and can not be opened in current month even the water balance in meter > 0