Steam/hot water IC card prepaid CS

    This system is connected to the flow (heat) totalizer by the IC card controller, and transmits the data on the

totalizer (instantaneous flow, cumulative flow, pressure, temperature, density, power-off time, setting parameters, etc.) to the control through serial communication Device. After the recharge management software recharges the IC card, the card is placed close to the IC card induction area to indicate that the card is successfully swiped. The amount purchased by the user is entered into the controller. The internal microprocessor CPU performs real-time calculations on the received meter data and the data entered by the IC card. Data processing such as comparison and logical judgment. When the value charged by the IC card (that is, the amount of steam purchased this time) is less than or equal to the set balance alarm value, the controller buzzer will alarm, the remote meter reading software web page will alarm and send a message to the designated person in charge's mobile phone to prompt; When the controller margin is less than or equal to the valve closing margin, the controller sends a signal to close the valve, and sends a message to the designated mobile phone number to prompt, and the degree of closing of the valve can be controlled according to the requirements, realizing the purpose of automatic management of prepayment.