This system transmits the data of water meter, electricity meter, and gas meter to the data processing center through telephone lines or dedicated communication lines, so that the usage data of water, electricity, and gas can be collected and statistically analyzed without leaving home. Its principle is similar to that of a remote display system, except that the data is directly collected by an electronic computer without the need for a person to come and read the meter. This method requires the cooperation of the four systems of water, electricity, gas, and telecommunications, and the common cost of communication equipment and measuring tools is very expensive. It may not be suitable for China's water supply enterprises to use temporarily, but some accommodation and residential areas can adopt this method, which can greatly improve the management quality of accommodation and residential areas.