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IC card water meter should have some basic functions
IC card water meter should have some basic functions
1. Statistics function. It is best to use a monthly statistics program. For example, on the last day of each month, the water meter will summarize the water data for the month and store it. When the user inserts (or senses) the IC card into the water meter, the data is automatically written back to the IC card and written back to the computer through the card. The water meter should be able to store the user's water consumption for each month of the decade. This function is of great significance for the water supply department system to grasp the user's water usage.
2. Record arrears. When the meter malfunctions or otherwise causes the valve to remain open when there is no amount of money, the water meter can record arrears, including incremental recording of water consumption and incremental recording of water charges owed. This record should also be written back to the computer via the card. But this function is not necessary.
3. Basic water volume and over-planned water management setting functions. Some water companies may, for some reason, put forward requirements for setting the basic water volume. The meaning of the basic water volume is that when the user's water consumption does not reach the basic water volume, the basic water volume is measured and charged. When the basic amount of water is exceeded, the excess amount of water may be priced and charged at a higher level than the basic amount of water.
4. A household card function. One household and one card are realized by setting up user passwords and user verification codes. That is, one meter can only use one user-specific card, and other cards are invalid. This helps to increase the safety of water meter use.
5. Make up the card function. The user's card has the possibility of being lost. When such a situation is encountered, it can be compensated. There are two possibilities at this time: one is that there is no money in the card, the other is that when the card contains money, it is lost. The replacement card operates through the management software.
6. Three card or four card settings. The three types of cards are initialization cards, clocked cards, and user cards. The functions and functions of the above three cards are generally:
a) Initialization The role of the card is to initialize the water meter so that the meter program is in the initial state and all data is cleared. In this state, the management department can recount the meter and open an account. Of course, other functions can also be added.
b) Clocking The purpose of the card is to write the calendar time to the water meter via the card. At the same time, some subroutines controlled by the clock are operated.
c) The first function of the customized card is to write the customized data into the water meter to realize a card for the first time when the card is inserted. The customized data refers to the user's name, address, user number, telephone number, water purchase times, purchase amount, unit price of purchased water, amount of water used for over-planning, unit price of over-planned water, and amount of alarm. The second role is to transfer the amount of water purchased to achieve water transactions. The third function is to write the relevant data in the water meter back to the card and pass it through the card to the computer's management software. Of course, other functions can also be set.