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A high-sensitivity multi-direction collision accident detecting method

A collision accident, multi-directional technology, applied in the field of collision detection, can solve the problems of difficult direct welding, high cost, and it is difficult to take into account the consistency of collision azimuth strength and the coordination of actions.

Inactive Publication Date: 2005-09-21
李捷逵
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Problems solved by technology

[0002] The impact sensor of the airbag of the existing car is composed of an inertial body, a spring and a contact. Because of its large size and good directivity, it must be used as a two-dimensional collision sensor. Four (front, rear, left, Right), if you need to detect 8 or more orientations, it is obviously more expensive and takes up more space
Especially because what it detects is a large impact force, it is not easy to be directly soldered on the circuit board for use
In addition, it is difficult to detect multiple collision directions, especially light collision signals, with this conventional method, because when the detection sensitivity of the collision sensor is improved, it is difficult to take into account the consistency of the strength and the movement of each collision direction. coordination

Method used

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  • A high-sensitivity multi-direction collision accident detecting method
  • A high-sensitivity multi-direction collision accident detecting method
  • A high-sensitivity multi-direction collision accident detecting method

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Embodiment Construction

[0011] First of all, it is pointed out that mercury has a large specificity and good self-convergence characteristics. Because the smaller its mass, the more spherical it tends to be, and spherical mercury not only has a large surface tension, but also has good elasticity. Therefore, mercury is the first choice for the deformable conductive inertial body, and its diameter is preferably Between 3mm and 2mm.

[0012] Working principle: See Figure 1 and Figure 2. The collision deforms the deformable conductive inertial body 5 and partially compresses it into the gap 4. Due to the slope and external self-cohesion, tension, elastic force, etc., it quickly withdraws and restores, so that the contact 2 or 1 and the middle common plate 3 The whole process of on and off has occurred.

[0013] The sensitivity of the sensor is related to the material selection and quality of the inertial body 5, as well as the width, slope, shape and contact spacing of the gap 4.

[0014] Incidentally,...

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Abstract

This invention provides a high sensitivity and multi-position collision detection method which installs a multi-position collision sensor, said sensor consists a closed cavity with insulation gap, the shape variable conductive inertia body is filled in cavity, contacts are set in gap and leading line to outer of casing to be used as electrode which is switched on when the inertia body change shape and is crowed into gap under external force, and switched off when the shape is restored. Said method can detect multi-position and high sensitive collision signal and can be used in many kinds of collision.

Description

technical field [0001] The invention relates to a collision detection method, in particular to a highly sensitive detection method for multi-directional collision accidents. Background technique [0002] The impact sensor of the airbag of the existing car is composed of an inertial body, a spring and a contact. Because of its large size and good directivity, it must be used as a two-dimensional collision sensor. Four (front, rear, left, Right), if you need to detect 8 or more orientations, it is obviously more expensive and takes up more space. Especially because what it detects is a large impact force, it is not easy to be directly soldered on the circuit board for use. In addition, it is difficult to detect multiple collision directions, especially light collision signals, with this conventional method, because when the detection sensitivity of the collision sensor is improved, it is difficult to take into account the consistency of the strength and the movement of each c...

Claims

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Application Information

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IPC IPC(8): B60R21/01H01H29/00H01H35/14
Inventor 李捷逵
Owner 李捷逵
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