Process of making relevant IC cards

1. First, use the area number you set to create a reset card and insert it into the table to reset it to zero.

2. Remake a setting card based on the parameters you have selected, insert the water meter, and set the meter to the corresponding sub meter

3. New account opening: Register the sub table, generate the corresponding sub table's account opening card, insert the created account opening card into the table, and complete the first purchase

4. Daily purchase: Use the inserted card to make daily purchases, generate a user card, insert the user card into the table, and complete daily water sales.

5. When the customer's instrument needs to be repaired or replaced, execute the function card creation process to create a replacement card (using a blank card), insert it into the table, bring back the information in the table, insert it into the already cleared table, and the new table can continue to purchase water. The user's user card can also be used to perform maintenance and meter replacement functions. The water replenishment amount is calculated based on the bottom of the meter, and the water volume is written into the card. It is inserted into the already cleared and set meter, and the water volume will be replenished to the new meter, which is the maintenance and meter replacement operation.

6. After the user's card is lost, the user who performs abnormal business can use the card replacement function to continue purchasing water after inserting the meter.

7. When customers need to return water for moving or other purposes, take their user card and execute the IC card function to create a return and purchase card. After inserting the card into the meter, the remaining amount in the water meter will be returned, and the card refund function in the abnormal business will be executed to refund the purchase. If the table is damaged, the manual return function can be executed by reading the card or searching to find the user's table and then executing the return function.

8. When it is necessary to check the customer's instrument condition and write back the data in the table, please create a query card first, and then insert the table. The data in the table will be written back to the card (the card can only store information for one table, and the valve will be opened and closed once when inserting the card).