How to open the valve lock of smart water meter after death

When the remaining water in the magnetic card (ic card) reaches the set alarm amount, the screen displays "Valve Closed". Brush the user card to open the valve water. It is generally recommended to go to the relevant departments to make up money to buy water immediately after using water.

When the remaining water in the card reaches the set amount (generally 0), the screen displays "Valve Closed". At this time, credit card users have no choice but to recharge. This is one of the reasons why magnetic card water meters are less and less used now.

When the IC card smart water meter is disturbed by strong external magnetic field, the screen shows "abnormal". At this time, the valve is closed due to magnetic interference, and water can only be taken by swiping the card after the magnetic interference disappears.

When the IC card water meter detects that the battery is under-voltage, the screen displays "insufficient power" and the valve is closed. Please contact the management department in time and don't disassemble it without authorization.

When the valve is closed for other reasons, please check the remaining water quantity and brush the user card into the water meter once to see if the valve can be opened. If it can't be opened and the remaining water volume is greater than the valve closing volume, please contact the management department in time. Please do not disassemble it without authorization.

Don't take water without permission when the water meter can't take water normally or the valve can't be closed. Be sure to report the situation to the property department or relevant departments and wait for handling.

Extended data:

On-off valve control of intelligent water meter valve;

The switch of water meter valve is realized by CPU turning on the switch circuit regularly according to certain switching conditions. There are two key points in the design of on-off valve control: first, the current output time of on-off valve circuit, that is, the loop conduction time, is well controlled in software, which is too long and the battery consumes too much energy.

The time is too short to open and close the valve reliably. Second, the hardware circuit should have an energy storage circuit that closes the valve. When the power supply is cut off, the circuit can release electric energy in time to close the valve.