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Figure is a functional block diagram of the utility model
[Chinese instrument network meter patent] creative limit, instrumentation invention. Today we introduce a national invention-invented patent – ​​a kind of pre-paid water meter device. The patent was applied for by Hunan Dongrun Intelligent Instrument Co., Ltd. and was authorized to be announced on August 22, 2017.
Content Description
The utility model relates to a water meter device, in particular to a prepayment water meter device.
Background of the invention
The commonly used prepayment meter is the IC card prepayment meter. This meter includes a microcontroller, a power supply Module, a water signal processing unit, a valve control unit, and a display unit. It can automatically collect, measure, display, and control valve data. And prompt alarms and other functions. After the user purchases the water quantity through the IC card and uses it on this table, he gains the use permission of the purchased water quantity; in the process of the user water use, the microcontroller in the smart card of the IC card automatically reduces the remaining water amount, and the purchased water quantity runs out. After that, the valve will be automatically closed and the water will be shut off. The user must re-purchase the water to enable the IC card water meter to open the valve and supply water again. Due to the inherent characteristics of the IC card prepayment meter, there are the following disadvantages: 1. Make the Water Division unable to adjust the price in time according to market conditions, causing huge losses when the energy price rises; 2. The Water Division cannot monitor the user's home water meter in real time. The operating status and use conditions; 3, IC card is open to the outside world, vulnerable to wet environment and human interference, increased the probability of damage.
Summary of the Invention
In view of the above-mentioned deficiencies of the prior art, the utility model provides a wireless prepaid water meter device which is simple in structure and convenient to use, and can perform real-time detection and reliable control.
In order to achieve the above objectives, the utility model is implemented by the following technical solutions: a prepaid water meter device, which includes a power supply detection unit, a water signal processing unit, a valve control unit, a data storage and management unit, a power detection unit, and a wireless remote transmission a module, the valve control unit is electrically connected to the valve control signal bidirectionally, the data storage and management unit is electrically connected bidirectionally with the EEPROM, and the water signal processing unit is electrically connected bidirectionally with the pulse or photoelectric signal acquisition unit. The power detection unit is electrically connected to the power supply in a bi-directional manner. The wireless remote transmission module includes a microcontroller and a radio frequency chip. The radio frequency chip and the microcontroller are electrically connected in both directions.
Preferably, the radio frequency chip collects and controls data information with an external collection terminal or a master station through wireless communication. The microcontroller chip performs data acquisition and control on the power detection unit, the water signal processing unit, and the valve control drive unit, and performs data transmission with the radio frequency chip. The power detection unit provides power to the wireless remote transmission module and transmits power down or low voltage detection signals to the microcontroller of the wireless remote transmission module. The water signal processing unit transmits water meter data or water data to the microcontroller, and the microcontroller transmits the data signal and acquisition abnormal state information to the collection equipment terminal through wireless communication. The wireless remote transmission module controls the water signal processing unit and the valve control unit through the microcontroller through the received control signal.
As can be seen from the above technical solution, the prepaid water meter device provided by the present invention can upload daily and monthly freeze data and meter status data to a meter reading master station through wireless communication, and can perform real-time data copying, thereby Achieve ladder charges. It is also possible to send data such as the amount, unit price, and the lower limit of the amount of money issued by the meter reading master station to the table through concentrators, hand readers, etc.; the user can independently select the payment amount and payment time, and save the purchase of water using the IC card. The trouble is to directly purchase the required amount of water from the point of payment, and the Water Division will pre-charge the user's water consumption through wireless remote transmission, which will bring a lot of convenience to the user; at the same time, the Water Division can also realize the pre-charging function, price adjustment function, and gradient. Metering function and remote valve control function, so as to effectively solve the problem of payment difficulty, and effectively monitor the user's water information in real time.
For more information, please download the full specification of the patent.
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