Wiring-free vehicle detector for barrier gate

Abstract

The invention discloses a wiring-free vehicle detector for a barrier gate. The wiring-free vehicle detector comprises a detector, a controller and the barrier gate, wherein the detector and the controller are electrically connected; the controller and the barrier gate are electrically connected; the detector is used for detecting metals of a vehicle mass in a fixed range and generating a front endswitching value signal according to the detection result; the detector is internally provided with a metal detector; and the controller is used for controlling the operation of the barrier gate according to the detection result of the detector. The wiring-free vehicle detector has the advantages that a metal induction detector of an emission type is used as the detector and a ground sensing coilis not required, so that the manpower cost and time cost are saved, and the using environments are more, namely, the wiring-free vehicle detector also can be used when metals such as well lids and rail tracks are on the ground; and the wiring-free vehicle detector is wide in application range, suitable for vehicles with high chassis and large in detection range, and does not cause a condition thatcarts cannot be detected due to high chassis.

Description

technical field [0001] The invention relates to the field of barrier gate equipment, in particular to a wiring-free vehicle detector for barrier gates. Background technique [0002] In the prior art, the vehicle management system has been popularized in various office buildings, shopping malls and other places. The vehicle detector is an indispensable part of the vehicle management system. In the prior art, after the barrier gate is opened, the rod drop method is all cut a coil on the ground, spread 4-6 circles of the ground sense wire, and the vehicle passes through the ground sense coil on the ground to generate an induced current to control the rod drop. In the detection method, the frequency is affected by changing the inductance of the coil through the chassis of the vehicle. The microprocessor determines whether there is a car by judging the frequency. Many car detection problems are caused by the unstable working frequency when the coil is cut. resulting in malfunct...

AI Technical Summary

Problems solved by technology

In the prior art, after the barrier gate is opened, the rod drop method is all cut a coil on the ground, spread 4-6 circles of the ground sense wire, and the vehicle passes through the ground sense coil on the ground to generate an induced current to control the rod drop. In the detection method, the frequency is affected by changing the inductance of the coil through the chassis of the vehicle. The microprocessor determines whether there is a car by judging the frequency. Many car detection problems are caused by the unstable working frequency when the coil is cut. causing malfunction

In addition, it needs to break ground during installation. On the other hand, the number of induction coils laid out is large and the power is relatively large, resulting in a large waste of electric energy, which brings waste of resources and inconvenience to users.

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