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Anti-eavesdrop device for fixed place

An anti-eavesdropping and location technology, applied in electrical components, interference to communications, etc., can solve the problems of difficult interception and low transmission power of wireless eavesdroppers, and achieve the effect of ensuring security.

Inactive Publication Date: 2017-05-17
北京五环伟业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide an anti-eavesdropping device in a fixed place, so as to solve the problem that the transmission power of wireless bugs is generally very small and it is difficult to intercept them

Method used

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  • Anti-eavesdrop device for fixed place
  • Anti-eavesdrop device for fixed place

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] Such as figure 1 with figure 2 As shown, an anti-eavesdropping device in a fixed place includes a housing and an anti-eavesdropping host fixedly installed inside the housing, the housing is equipped with an external antenna, a display screen, and a power switch.

[0026] Described anti-eavesdropping main frame comprises a signal receiving unit 1, and described signal receiving unit 1 is used for receiving the radio wave of wide range frequency band, and described radio wave is filtered, amplified, obtains the amplified signal of corresponding frequency band range; A signal detection Unit 2, used to receive the amplified signal from the signal receiving unit 1, compare the amplified signal with the normal radio signal, and detect whether t...

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Abstract

An anti-eavesdrop device for a fixed place comprises a housing and an anti-eavesdrop body which is fixed mounted in the housing. The housing is provided with an external antenna, a display screen and a power switch. The anti-eavesdrop body comprises the components of a signal receiving unit which is used for receiving a relatively wide band range radio wave and performs filtering and amplification on the radio wave for obtaining an amplified signal in the corresponding band range; a signal detecting unit which is used for receiving an amplified signal from the signal receiving unit and compares the amplified signal with a normal radio wave signal; and a signal shielding unit which performs shielding according to the result of the signal detecting unit. The anti-eavesdrop device can effectively detect the radio wave signal of the fixed place and screens an eavesdrop signal which is different from the normal radio wave signal, thereby realizing selective shielding of the eavesdrop signal and ensuring high wireless communication safety in the fixed place.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to an anti-eavesdropping device in a fixed place. Background technique [0002] Today, wireless bugs have been widely used in espionage and intelligence activities in various countries. Wireless eavesdropping is to transmit the sound picked up by the microphone into the air in the form of radio waves, and receive it with a specific receiver within an effective distance. Its operating frequency ranges from tens of megahertz to hundreds of megahertz. Since the transmission frequency exceeds the broadcast frequency range, it avoids the possibility of being received by general radio receivers. [0003] The performance of the wireless bug is mainly measured by the transmitting power of the transmitter and the sensitivity index of the receiver. Generally, the volume of the receiver is not limited, so the sensitivity of the receiver is relatively easy to be guaranteed. In ...

Claims

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Application Information

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IPC IPC(8): H04K3/00
Inventor 邵秋峰乔晖韩志刚黎华金高东海
Owner 北京五环伟业科技有限公司