Today, I will introduce a national invention authorized patent-an anti-dismantling smart water meter and system. The patent was applied for by Hunan Weiming Energy Technology Co., Ltd., and the authorization was announced on December 28, 2016.
Content descriptionThe utility model relates to a water meter, in particular to an anti-dismantling intelligent water meter and system.
Background of the inventionThe existing smart water meter will be preset with a ball switch inside the meter to prevent users from disassembling the meter without authorization. The tilt angle of the ball switch is the preset alarm angle. When the water meter swings on a plane and reaches the preset alarm angle, the anti-dismantling alarm function will be triggered. However, this method has certain limitations. The first is that the angle adjustment of the ball switch during production is not easy to control, and the deviation is large; the second is that the trigger action response is not sensitive enough, and the tilt angle of the water meter must reach a certain angle to trigger the alarm. That is, if the user shakes the water meter and does not exceed the preset alarm angle during the disassembly of the meter, the tamper detection unit of the water meter will not alarm, so there is a hidden danger of inadequate tamper protection and false alarms.
Summary of the inventionThe purpose of the utility model is to provide an anti-dismantling intelligent water meter and system with higher sensitivity and reliability.
The technical scheme of the utility model is: an anti-dismantling smart water meter, including a base meter, and an acceleration acquisition unit and an angle acquisition unit arranged on the base meter. The acceleration acquisition unit is used to acquire acceleration information of the water meter, and the angle acquisition unit is used for To obtain the inclination angle information of the water meter.
In a specific embodiment, the acceleration acquisition unit includes a single-axis acceleration sensor. The angle acquisition unit includes a three-axis acceleration sensor or a two-axis tilt sensor. The acceleration acquisition unit and the angle acquisition unit are respectively electrically connected to the microprocessor. In a specific embodiment, the solenoid valve is electrically connected to the microprocessor through the drive module, and the tamper-evident alarm module is electrically connected to the microprocessor.
A water meter anti-disassembly system of the utility model includes an intelligent water meter equipped with a microprocessor, including an acceleration acquisition unit, which is arranged on the base meter housing and is electrically connected to the microprocessor for acquiring and transmitting acceleration information of the water meter To the microprocessor; the angle acquisition unit is arranged on the base meter housing and is electrically connected to the microprocessor for acquiring the tilt angle information of the water meter and transmitting it to the microprocessor; the remote monitoring terminal communicates with the microprocessor.
In another specific embodiment, the solenoid valve is electrically connected to the microprocessor through a drive module. The anti-disassembly alarm module is electrically connected with the microprocessor.
The utility model has the advantage that no ball switch is needed inside the watch of the utility model, and an acceleration sensor is used to sense whether there is a watch disassembly behavior, the sensitivity and reliability are higher, it can be monitored in real time, and the alarm angle can be preset.
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