Monitoring system and method based on vibration sensor array

A vibration sensor and monitoring system technology, which is applied in the directions of instruments, anti-theft alarm mechanical start-ups, and measuring devices, can solve problems such as high cost, impact, and unknown damage to leaking cables, and achieve low cost, convenient layout, and difficult detection and discovery. Effect

Inactive Publication Date: 2011-08-17
峰润技术无锡有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the leakage cable perimeter warning system, the cables need to be laid in a large area, which will cause high cost; if they are laid below the ground outside the fence, although the concealment is much better than that of infrared radiation, it is still difficult to prevent these leaking cables from being attacked outside the fence. Unknown damage by outsiders; thunderstorms with magnetic field induction will have a certain impact on the system

Method used

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  • Monitoring system and method based on vibration sensor array
  • Monitoring system and method based on vibration sensor array
  • Monitoring system and method based on vibration sensor array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 and 3 The one-sided three-way single-layer early warning belt shown in the figure, the vibration sensors are divided into A, B, and C three-way, each sensor has two vibration sensors connected in series, the layout scheme is shown in the figure. And A, B, C three-way sensors are all arranged in the fence. The principle of the scheme is based on the vibration signal energy received by the sensor. A.Energy, B.Energy and C.Energy are used to represent the vibration signal energy received by the three groups of sensors A, B, and C respectively. According to relevant literature, the vibration signal energy and The transmission distance is inversely proportional, and the energy source whose ratio of energy received by two shock sensors is a certain value is on a circular trajectory, such as figure 2 shown. According to this principle, a detection algorithm can be designed to detect whether an intruder has passed through the virtual fence. The early warni...

Embodiment 2

[0046] Such as Figure 4 and 5 In the asymmetrical four-way single-layer early warning belt shown, the two roads B and C are arranged in the early warning belt, and the two road sensors A and D are arranged on both sides of the early warning belt. The early warning method is as follows:

[0047] 1. The sensor group collects the signal and transmits it to the controller for processing;

[0048] 2. Calculate A, B, C, D three-way energy A.Energy, B.Energy, C.Energy, D.Energy and kurtosis A.kur, B.kur, C.kur, D.kur;

[0049] 3. The maximum value of the kurtosis of A, B, C, and D is greater than 3.5, otherwise go to 8;

[0050] 4. The maximum energy value of the B and C roads divided by the D road energy is greater than Threashold1, otherwise go to 8;

[0051] 5. The energy of road B and C divided by the energy of road A is greater than Threashold2, otherwise go to 8;

[0052] 6. Alarm;

[0053] 7. Return 1;

[0054] 8. Do not call the police, go to 7.

[0055] Among them, Th...

Embodiment 3

[0057] Such as Figure 6 and 7 In the shown asymmetrical three-way single-layer early warning belt, two roads B are arranged in the early warning belt, and two road sensors A and C are arranged on both sides of the early warning belt. The early warning method is as follows:

[0058] 1. The sensor group collects the signal and transmits it to the controller for processing;

[0059] 2. Calculate A, B, C three-way energy A.Energy, B.Energy, C.Energy and kurtosis A.kur, B.kur, C.kur;

[0060] 3. The maximum value of the kurtosis of A, B, and C is greater than 3.5, otherwise go to 8;

[0061] 4. The energy of channel B divided by the energy of channel C is greater than Threashold1, otherwise go to 8;

[0062] 5. The energy of channel B divided by the energy of channel A is greater than Threashold2, otherwise go to 8;

[0063] 6. Alarm;

[0064] 7. Return 1;

[0065] 8. Do not call the police, go to 7.

[0066] Among them, Threashold1 is the multiple of road B greater than r...

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Abstract

The invention discloses a monitoring system and method based on a vibration sensor array. The system comprises a monitoring array and a control box; the monitoring array consists of a plurality of vibration sensor sets having the same structure and is arranged in an early-warning zone or arranged close to the warning zone; the control box is connected with the monitoring array and is used for sending out a warning remind when vibration signals obtained by monitoring of the monitoring array satisfy the preset conditions. The monitoring method comprises the following steps of: arranging the monitoring array in an early-warning zone or close to the periphery of the early-warning zone and sending out a warning remind through the control box when the vibration signals obtained by monitoring of the monitoring array satisfy the preset conditions. The system disclosed by the invention has low cost, is convenient to arrange, is difficult to be perceived and found because the vibration sensors are located below the earth surface, is influenced less by the weather, has no special requirement on the installation site and can realize the function of an all-weather real-time virtual fence. Meanwhile, the equipment is arranged in a guard zone (a controllable zone), so that the system can be prevented from damage dangers and the sustainability and the security of the system can be promoted.

Description

technical field [0001] The invention relates to a sensor array-based monitoring system and method in the field of perimeter security. Background technique [0002] Most of the existing fences are manually guarded, and the situation around the fence is monitored in real time through video surveillance. This not only consumes a lot of manpower, but also limits the scope and effect of monitoring. Therefore, unattended automatic monitoring means is an important development direction of perimeter monitoring. At present, the commonly used automatic monitoring methods mainly include infrared radiation curtains, buried leakage cables, vibration cables, etc., but these have limitations such as cost, installation, weather influence, site requirements, and easy detection by intruders. [0003] Infrared through-beam curtain mainly refers to a kind of infrared through-beam protective device, including at least one pair of oppositely arranged infrared through-beam detectors, and at leas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B13/02G01H17/00
Inventor 伍健荣邓遂杜向龙孙雨轩楼晓俊鲍必赛
Owner 峰润技术无锡有限公司
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