Eddy current counting water meter for identifying forward and backward rotation
A water meter and eddy current technology, which is used in volume measurement, liquid/fluid solid measurement, and measurement devices, etc., can solve the problems of limited sensing distance of LC oscillator circuit counting, inability to recognize the forward and reverse rotation of the water meter, and large influence of environmental media. Simple structure, stable operation, and the effect of preventing leakage
Pending Publication Date: 2019-07-12
济宁金水科技有限公司
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Problems solved by technology
[0002] At present, smart water meters in the market have fallen into thousands of households, and smart water meters emphasize accurate counting. The current water meters mainly include photoelectric direct reading water meter counting and LC oscillation circuit counting, but photoelectric direct reading counting cannot recognize the forward and reverse of the water meter, and LC oscillation The circuit counting sensing distance is limited, it is greatly affected by the environmental medium, and the requirements for use are high
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[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following in conjunction with the attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 , attached Figure 5 , attached Figure 6 And the specific embodiment will further illustrate the present invention.
[0019] as attached figure 1 As shown, an eddy current counting water meter that recognizes positive and negative rotation includes a power supply, a single-chip microcomputer, a selector, a frequency divider, a detection circuit, a code disc, a water meter 1 and a circuit, and the power supply is connected to the single-chip microcomputer and the water meter 1 through the circuit. connection, the code disc 2 is set as a 1 / 3 gap disc structure, the code disc 2 is set on the needle shaft of the water meter 1, and can rotate with the rotation of the watch needle, and the detection circuit 3 is set on the code disc Above 2,...
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An eddy current counting water meter for identifying forward and backward rotation comprises a power source, a single chip microcomputer, a selector, a frequency divider, a detecting circuit, a code wheel, a water meter and a line, wherein the power source is respectively connected to the single chip microcomputer and the water meter through the line, the code wheel is arranged as a notched disk structure and arranged on the hand shaft of the water meter, the detecting circuit is arranged above the code wheel, the single chip microcomputer is electrically connected to the selector that is electrically connected to the detecting circuit, and the detecting circuit is electrically connected to the frequency divider that is electrically connected to the single chip microcomputer. The eddy current counting operation is stable and less affected by the external environment. The detecting circuit composed of three oscillation circuits has a simple structure, and can not only complete the counting function, but also detect forward and backward rotation and prevent from the drain electrode. And the code wheel is made of copper, and has high stability and long service life.
Description
technical field [0001] The invention relates to a water meter, in particular to an eddy current counting water meter for identifying forward and reverse directions. Background technique [0002] At present, smart water meters in the market have fallen into thousands of households, and smart water meters emphasize accurate counting. The current water meters mainly include photoelectric direct reading water meter counting and LC oscillation circuit counting, but photoelectric direct reading counting cannot recognize the forward and reverse of the water meter, and LC oscillation The circuit counting sensing distance is limited, it is greatly affected by the environmental medium, and the requirements for use are high. Contents of the invention [0003] In order to solve the above problems, the present invention provides an eddy current counting water meter that can identify forward and reverse rotations, and provides an eddy current counting water meter that can identify forwa...
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CPCG01F15/0755
Inventor 李培民孔生汪衍赓
Owner 济宁金水科技有限公司