Gas card: with automatic charging function, one meter and one card for each household. Users pay fees to the gas management department, and the management department writes the purchased gas into the IC card through the computer management system. Users can get the right to buy gas by inserting IC card into IC card gas meter, which represents the development direction of pipeline gas charging management in the future.
In the process of gas consumption by users, the microcomputer in the IC card smart meter automatically reduces the residual gas, and when the purchased gas is used up, it will automatically close the valve and cut off the gas. Users need to buy gas again, and IC card gas meter can open the valve to supply gas again. The IC card can also record the operation of the gas meter, and manage the information such as total gas consumption, total gas purchase and on-off valve status under the management machine or management software.
In order to meet the needs of modern scientific management, through the efforts of China's scientific community, and at the same time using the latest foreign research results and a number of patented technologies, the city gas pre-charge management system has been successfully developed and put on line. This achievement fundamentally and thoroughly solves the disadvantages of the traditional charging method, and its remarkable feature is to pay the fee first and then use the gas.