Headset detecting device

Abstract

The invention discloses a headset detecting device, in particular relates to an improvement of a non-contact headset detecting device structure, which belongs to detecting equipment, and is mainly used for inspecting cheating by a stealth headset or audio sensing equipment in an examination hall. The headset detecting device of the invention is high in sensitivity and simple in structure. The headset detecting device comprises a microprocessor, a frequency-fixed transmitting circuit, an electromagnetic wave transmitting element and a sound wave receiving element, wherein the microprocessor is connected with other components, used for controlling an audio signal output by the frequency-fixed transmitting circuit and makes a judgment according to an electrical signal output by a frequency selection sound control circuit; the output end of the frequency-fixed transmitting circuit is connected with the electromagnetic wave transmitting element to output an audio driving signal under the control of the microprocessor; the electromagnetic wave transmitting element is driven by the driving signal output by the frequency-fixed transmitting circuit to transmit an electromagnetic wave; and the sound wave receiving element is used for receiving a sound wave generated by the stealth headset under the action of an audio electromagnetic wave transmitted by the electromagnetic wave transmitting element.

Description

Technical field: [0001] The invention belongs to detection equipment, and in particular relates to an improvement in the structure of a non-contact earphone detection device, which is mainly used for inspecting the phenomenon of cheating by invisible earphones and audio sensor equipment in an examination room. Background technique: [0002] With the continuous development of electronic technology and the continuous advancement of science and technology, electronic products are changing with each passing day. At present, a new type of communication tool, the invisible earphone, has appeared in the society. There are two main types, one is the rare earth type, which mainly relies on the induction vibration of the strong magnetic material in the audio magnetic field to vibrate the ear canal so that the user can hear the sound. There is also an electronic type that mainly relies on the induced electromotive force obtained by the induction coil in the audio magnetic field to acti...

AI Technical Summary

Problems solved by technology

However, affected by the unhealthy social atmosphere, a small number of elements in the society use invisible earphones to monitor other people's privacy, cheating in the examination room and other violations of laws and regulations, which has brought great harm to the society and violated the principle of fair competition.

[0004] There are two types of detection devices for the existing invisible earphones: one is the electromagnetic wave detection dog, which can detect electromagnetic waves very well, but it is difficult to judge whether the detected signal is due to problems such as too sensitive and poor positioning. What, where does it come from; the other is a metal detector, which can conduct a non-contact full-body inspection of the inspected object. Its detection speed is slow, and it is difficult to grasp the sensitivity. Cards, zippers and other metal objects cause false alarms from the alarm device, which brings inconvenience and trouble to the staff and inspection objects

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