Water meter management system capable of realizing step water price
A management system, water meter technology, applied in the direction of handling coins or valuable banknotes, coinless or similar appliances, coin-operated equipment for distributing discrete items, etc., which can solve the deviation, waste, and lower utilization of water prices and values and other issues to achieve low power consumption, avoid waste, and good stability
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[0008] exist figure 1 Among them, the present invention is a water meter management system capable of realizing stepwise water prices, which includes a processor unit, a display device, a flow counting module, a valve control circuit, an RF card circuit, a power supply and an alarm circuit, the flowmeter module is connected to the power supply, and the power supply It is a 3.6V lithium battery. The lithium battery uses a special voltage detection chip. It monitors the battery voltage. The display device is an LCD display. A flow sensor is connected to the input port of the flow counting module. The flow sensor is a Wiegand sensor. The root sensor is also designed to resist external magnetic field interference. The output port of the flow counting module is connected to the display device and the RF card circuit respectively. The RF card circuit includes a non-contact identification system and a card reader. The non-contact identification system and the reader Card device conne...
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