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Embedded type security device based on two channels

An embedded, channel technology, applied in the direction of anti-theft alarms, instruments, alarms, etc., can solve the problems of high false alarm rate, inability to distinguish external signals, short monitoring distance, etc., to improve accuracy, facilitate concealed installation, Small size effect

Active Publication Date: 2015-04-15
BEIJING AEROSPACE YILIAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the prior art is that the monitoring distance is relatively short, and it is impossible to distinguish external signals, such as whether the external signal is an intruder behavior signal (alarm signal) or a natural phenomenon and a signal of natural environment disturbance (noise signal). Feature extraction and intelligent recognition of external signals lead to a relatively high false positive rate

Method used

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  • Embedded type security device based on two channels
  • Embedded type security device based on two channels
  • Embedded type security device based on two channels

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0035] Embodiment 1 of the present invention provides a two-channel embedded security device. figure 2 It is a diagram of a two-channel embedded security device provided by Embodiment 1 of the present invention. Such as figure 2 As shown, the security device includes: a first photoelectric triode 101, a second photoelectric triode 102, an electrical signal processing module 103, a main controller 104, an optical control board 105, a light source 106, and a 1×2 coupler 108 , the first fiber optic flange 109 and the second fiber optic flange 110;

[0036] The output end of the first photoelectric triode 101 is connected to the first input end of the electrical signal processing module 103, for receiving the optical signal of the first channel in the optical cable, and converting the optical signal of the first channel is the first electrical signal; the output end of the second photoelectric triode 102 is connected to the second input end of the electrical signal processing ...

Embodiment 2

[0052] image 3 It is a schematic diagram of the optical path of a two-channel embedded security device provided by Embodiment 2 of the present invention, as shown in image 3 As shown, the optical path device includes a light source 1, a PIN photodiode 2, a fiber coupler 3, a delay ring 4, a Faraday rotating mirror 5, and an optical fiber connection line;

[0053] The light source 1 is the light source 106 provided by the first optical fiber flange 109 and the second optical fiber flange 110 of the two-channel embedded security device; The tube 101 is connected to the second photoelectric triode 102; the light source 1 and the PIN photodiode 2 are connected to the input end of the fiber coupler 3, the fiber coupler 3 is connected to the delay ring 4, and the output end of the fiber coupler 3 is connected to the vibration optical cable, and the vibration The end of the optical cable is connected with the Faraday rotating mirror 5 .

[0054] Analyze the optical path of the op...

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Abstract

The invention discloses an embedded type security device based on two channels. The embedded type security device comprises a first photoelectric triode, a second photoelectric triode, an electric signal processing module, a master controller, an optical-control panel, an optical source, a one-plus-two coupler, a first optical fiber flange and a second optical fiber flange. The first photoelectric triode and the second photoelectric triode are used for converting optical signals of the first channel and the second channel into first electric signals and second electric signals. The electric signal processing module is used for processing the first electric signals and the second electric signals. The mater controller is used for performing feature extraction and intelligent recognition on the processed first electric signals and the processed second electric signals. The optical-control panel is used for converting voltage control signals into optical source strength control signals. The optical source is used for emitting optical signals with different strength according to the optical source strength control signals. The security device has the advantages that effective feature extraction and intelligent recognition of warning signals or noise signals can be achieved, warning accuracy rate can be increased, and the device is small in size, capable of being operated independently and convenient to mount in a concealed manner.

Description

technical field [0001] The invention relates to the security field, in particular to a two-channel embedded security device. Background technique [0002] The security&protection system (SPS) aims to maintain social public safety, and uses security products and other related products to form an intrusion alarm system, video security monitoring system, entrance and exit control system, BSV LCD splicing wall system, and access control fire protection system. , explosion-proof safety inspection system, etc.; or an electronic system or network composed of these systems as subsystems or integrated. [0003] Optical fiber micro-vibration alarm systems in the prior art such as figure 1 shown. The optical fiber micro-vibration alarm system includes a main control computer, a main control instrument, an optical fiber terminal box, a guiding optical cable and a sensing optical cable. The main control computer is connected with the main control instrument, which is used to extract t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/00
CPCG08B13/00
Inventor 陈雪松贾渠苗守功陈一平
Owner BEIJING AEROSPACE YILIAN TECH DEV
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