Refund method for recharging water, electricity and gas meters in public rental housing
A technology for gas meters and public rental housing, applied in the fields of electricity meter or gas meter recharge and refund, public rental water meter field, can solve problems such as management difficulties and frequent personnel flow, and achieve the effect of simplifying management, facilitating rental personnel, and ensuring safety.
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Embodiment 1
[0025] Embodiment 1: Step t1, the user initiates a refund operation to the background server 3 through the mobile APP, and the background server 3 sends a refund authentication code to the mobile APP after receiving the refund request.
[0026] Step t2: Input the refund authentication code into the water, electricity and gas meter 1 through the button on the water, electricity and gas meter 1. After the water, electricity and gas meter 1 recognizes the refund authentication code, calculate the remaining amount and then encrypt the remaining amount with the private key to generate a refund confirmation code and stop supplying power, water or gas to the public rental housing, and clear the data in the table at the same time.
[0027] Step t3: Input the refund confirmation code into the mobile APP and send it to the background server 3. After the background server 3 successfully decrypts, the remaining amount will be refunded to the payment account bound to the mobile APP, and the...
Embodiment 2
[0028] Embodiment 2: Step t1: Generate a random number R1 as a refund request code through the refund button of the water, electricity and gas meter 1, and send the random number R1 to the background server 3 while initiating a refund operation to the background server 3 through the mobile phone APP After obtaining the random number R1, the background server 3 generates a random number R2 and returns the random number R2 to the mobile APP as a refund authentication code.
[0029] This step can also be to initiate a refund operation to the background server 3 through the mobile phone APP, and the background server 3 prompts to input the refund request code generated by the refund button of the water, electricity and gas meter 1 through the mobile phone APP; Press the button to generate a random number R1 as a refund request code, and then send the random number R1 to the background server 3 through the mobile APP, and the background server 3 will generate a random number R2 afte...
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