Security device integrating fiber optic sensor, sound sensor and image monitor

Abstract

The invention discloses a security and protection device integrated with an optical fiber sensor, a sound sensor and an image monitor. The security and protection device integrated with the optical fiber sensor, sound sensor and image monitor comprises the distributed optical fiber sensor, the sound sensor, an image detector, a signal processing system, a control unit, an alarm and terminal display equipment and is characterized in that the optical fiber sensor, sound sensor and image detector are arranged on a wall body, the signal processing system is connected with a light detector, a sound detector and the image detector through circuits, each of a light storage, a sound storage and an image storage is provided with a filter circuit, an amplifying circuit and an analog-digital conversion circuit, a judgment module is connected with each processing module through a circuit, the judgment module is connected with the control unit through a circuit, and the control unit is connected with an alarm and the terminal display equipment through circuits. The security and protection device integrated with the optical fiber sensor, sound sensor and image monitor combines the distributed optical fiber sensor, sound sensor and image detector, a system can duly and precisely obtain the position and image information of an invader, and the missing report rate and false alarm rate are reduced; the security and protection device integrated with the optical fiber sensor, sound sensor and image monitor is suitable for the regions, military installations and the like which have high requirements on confidentiality, security and protection.

Description

technical field [0001] The invention relates to a security device, in particular to a security device integrated with an optical fiber sensor, a sound sensor and an image monitor. Background technique [0002] With the continuous development of social economy, people have higher and higher requirements for the safety of life and environment. In terms of civilian use, especially when it comes to property and life safety, people hope to be able to predict the occurrence of disasters in time to avoid property losses; in terms of military defense, we have stricter requirements for the confidentiality of military information and military bases. Therefore, a security system with high accuracy is very necessary. [0003] For ordinary security systems, the current application is to set up several image monitors on the perimeter of the defense zone, which can realize real-time monitoring. For a large-scale, long-bordered security zone, this facility has the disadvantage of being un...

AI Technical Summary

Problems solved by technology

However, the positioning accuracy of this kind of fiber optic sensor is generally tens of meters or even hundreds of meters. For some occasions with very strict security requirements, this positioning accuracy is not enough, which is not conducive to the security personnel to quickly and accurately find and deal with intrusions. By

Because fiber optic sensors are generally embedded in strips, the sensing area in the lateral direction is relatively small, and intentional intruders can easily cross the fiber optics, causing leakage alarms

In addition, the monitoring system that uses distributed optical fiber sensors alone will inevitably misjudgment some disturbance signals due to reasons such as inability to obtain intruder images or defects in the intrusion determination algorithm, resulting in false alarms, which will inevitably lead to a waste of security manpower

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