Nantong Gympro Sports Co.,Ltd , https://www.sportsgympro.com
It is easy to know that there will be unstable air or water pressure in the water pipe, which makes the water meter idling. The idling of the water meter is a normal phenomenon. In the actual installation environment of the water meter, it is impossible to completely avoid the idling phenomenon of the water meter. However, the idling of the water meter may be forward or reverse, and the metering structure of the existing smart meter cannot determine the direction of rotation of the meter.
Regardless of whether the water meter is forward or reverse, the electronic measurement module will determine the sensor signal as a valid signal. The data obtained by the electronic measurement module is: the forward measurement data is the reverse measurement data, and the mechanical measurement data is the positive measurement data. Measurement data. In the existing building, the general meter is a smart meter, and the individual meter is a mechanical meter. Therefore, when the smart meter is used for a long time, there will be a certain error between the electronic reading and the mechanical reading, that is, the electromechanical error. The error is When the water meter is used twice in reverse, the more the meter is used in the reverse direction, the greater the electromechanical error will be, and the user will have a certain amount of dispute when paying.
There is no limit to creativity, and instrumentation is invented. In view of the above, in order to overcome the shortcomings of the existing technology, today [instrumental invention] introduces to everyone a utility model patent that has been authorized by the State - a smart water meter with positive and negative reversal measurement.
The water meter was invented by Zhejiang Huali Liyuan Instrument Co., Ltd. and was authorized to be announced on August 27, 2014.
The technical solution adopted by the utility model is:
Positive and negative reversible metering smart meter, the base meter connects the water source inlet and the water source outlet, the base meter is equipped with a character wheel 5 rotating around the center shaft 4, the character wheel 5 is provided with a magnetic steel 3, and the outside of the character wheel 5 is equipped with a sensing device. The first sensor 1 and the second sensor 2 of the signal of the magnetic steel 3, the outputs of the first sensor 1 and the second sensor 2 are all connected to a central controller, and the central controller is connected to the display screen. The first sensor 1 is located outside the line connecting the second sensor 2 and the central axis 4 .
Preferably, the first sensor 1 and the second sensor 2 are located in the same quadrant of the coordinate system defined by the center axis 4 as the origin.
The use of magnetic induction device for water metering and determination of positive and negative, including measuring movement, measuring sensors, electronic measurement modules, electronic measurement modules include forward storage module and reverse storage module. The metering sensor outputs the switching pulse signal through whether the magnetic induction device is in the magnet sensing area, the electronic measurement module collects the output signal of the metering sensor to determine the reading of the metering movement, and judges the metering direction according to the variation rule of the metering sensor output signal.
The utility model has the beneficial effects that: the reading form of the utility model is the amount of positive rotation - the amount of inversion, and bidirectional measurement is realized, so even if the water meter is reversed, the reading of the electronic measurement and the reading of the mechanical measurement are always Maintaining complete consistency eliminates electromechanical errors and effectively avoids disputes when users pay.
For further understanding of the invention, the patent specification can be downloaded for detailed understanding. Download address: http://img64.ybzhan.cn/5/20140912/635461378650099061295.pdf
In the past: [Instrumental invention] Pressure sensor detection Self-disconnected gas meter [Invention of the instrument] The wireless smart level transmitter [Instrument large invented] The new differential pressure level gauge [Invention] Combined radiation and temperature and humidity recorders (instrumentation invention) wireless intelligent temperature transmitter
[Chinese Instrumentation Network Invention Technology Control] The existing electronic metering part of the smart water meter generally adopts the addition of a sensor on the basis of the mechanical metering structure to convert the mechanical signal into an electronic signal. The sensors used mainly include a reed switch, a Hall, or a magnetic reluctance. Magnetic induction devices. The principle of sensor signal conversion is to install a magnetic steel on the circumference of the mechanical character wheel or the pointer. When the character wheel or pointer rotates one revolution, the sensor obtains one or a pair of pulse switch signals. The software accumulates the pulse switch signal. The number of revolutions of the character wheel or pointer is calculated, and the rotation of the character wheel or the pointer is proportional to the tap water volume passing through the water meter. Therefore, the tap water volume passing through the water meter can be calculated by the accumulated value of the pulse signal. Specific instructions: