Alarm circuit applied to intelligent well cover, alarm and intelligent well cover

Abstract

The invention provides an alarm circuit applied to an intelligent well cover, an alarm and an intelligent well cover. The alarm circuit comprises a power supply element used for supplying power to thealarm circuit, a switch, a controller and a radio frequency assembly, wherein one end of the switch is connected with a positive pole of the power supply element, the switch is used for opening and closing the alarm circuit, the controller comprises the first end, the second end, the third end and the fourth end, the first end is connected with the other end of the switch, the second end is connected with a negative pole of the power supply element and is grounded, the third end is connected with a sensor, the controller carries out information interaction with a server periodically, a mechanical sensor is adopted as the sensor, the radio frequency assembly is connected with the fourth end of the controller, it is ensured that the alarm circuit, the alarm and the intelligent well cover can save electric quantity to the great extent during long-term standby, thus the service life of a lithium battery can reach over five years, meanwhile, frequent triggering in the transporting and storing processes can be avoided, and the effect of saving electricity and energy is achieved.

Description

technical field [0001] The invention relates to the field of manhole cover monitoring, in particular to an alarm circuit, an alarm and an intelligent manhole cover applied to an intelligent manhole cover. Background technique [0002] The smart manhole cover is a manhole cover made of ductile iron, which is not only noise-proof and shock-proof, but also has an automatic alarm function. [0003] However, most of the smart manhole covers currently on the market are smart manhole covers used in the narrowband field, and the sensors of the smart manhole covers on the market are mostly non-mechanical sensors, resulting in long-term standby power consumption and short battery life. , It will also cause frequent triggers during transportation and storage, which is very inconvenient. Contents of the invention [0004] In order to solve the above problems, the present invention provides an alarm circuit, an alarm and a smart manhole cover applied to a smart manhole cover, which ov...

AI Technical Summary

Problems solved by technology

[0003] However, most of the smart manhole covers currently on the market are smart manhole covers that are used in the narrowband field, and most of the smart manhole covers on the market use non-mechanical sensors for sensors, resulting in long-term standby power consumption and short battery life. , it will also cause frequent triggers during transportation and storage, which is very inconvenient

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