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Mini-type vibration sensor array and application thereof to ground target tracking

A technology of vibration sensor and vibration sensor, which is applied in the direction of instruments, seismology, scientific instruments, etc., can solve the problem that the target positioning cannot be realized at the same time

Active Publication Date: 2012-05-02
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
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Problems solved by technology

[0007] In order to overcome the shortcomings of the existing single-type shock sensor equipment that can only detect the type of ground target and cannot realize the positioning of the target at the same time, the purpose of the present invention is to provide a miniature shock sensor array and its application in ground target tracking

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  • Mini-type vibration sensor array and application thereof to ground target tracking
  • Mini-type vibration sensor array and application thereof to ground target tracking
  • Mini-type vibration sensor array and application thereof to ground target tracking

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] See details image 3 For the sake of convenience, this embodiment still uses the 5-element shock sensor array as an example for detailed description. Actually, a shock sensor array that can integrate more array elements can be fabricated according to the needs, and its basic structure is similar.

[0035]In the figure, 1 is the PCB circuit board, and 2 is the vibration sensor installed in the center of the PCB circuit board. The vibration sensor is a miniaturized vibration sensor chip made by MEMS technology. The area size is generally about 4×6mm, and the vibration induction direction is perpendicular to On the surface of the PCB circuit board, the remaining 4 vibration sensors are other miniaturized vibration sensor chips arranged at equal intervals around the PCB board. The distance between the sensor chip and (2) is the same, the distance is...

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Abstract

The invention relates to a mini-type vibration sensor array and application thereof to ground target tracking. The mini-type vibration sensor array is characterized in that: a plurality of same mini-type MEMS (Micro-electromechanical System) vibration sensor chips are integrated and packaged on a PCB (Printed Circuit Board) and corresponding vibration signal processing circuits are also integrated on the same PCB. The plurality of the vibration sensor chips are distributed as a cross array to form a mini-type array. When a certain ground target is measured, only a sensor is put into the plane and distance and direction of a target can be determined according to coordinates of each array element of the sensor and time correlations of each output signal; and the type of the target can be determined according to frequency spectrum characteristics of each array element output signal, such as whether the type is people or vehicle and the like, so as to realize the comprehensive detection and positioning of the target. The mini-type vibration sensor array provided by the invention can be used for detecting the distance, the direction and the type of a ground moving target at the same time.

Description

technical field [0001] The invention relates to a micro-vibration sensor array and its application in ground target tracking. More precisely, the invention relates to a micro-sensor array composed of a plurality of micro-vibration sensors, which can be used to track and locate ground moving targets A vibration sensor that measures and detects the distance, azimuth, and target type of ground moving targets. Background technique [0002] At present, traditional vibration sensors used for ground target detection generally adopt a single-sensor approach, and the selection of vibration sensors is usually a moving coil type or a velocity sensor with a MEMS structure. When in use, this single vibration sensor is buried underground, and the signal related to the target is obtained by sensing the ground vibration excited by the ground moving target. By analyzing the characteristics of the target signal, the type of the target can be further determined. This single-sensor-based dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G01V1/00
Inventor 李宝清宋勇袁晓兵
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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