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Safety equipment

A technology of safety device and detection unit, which is applied in the direction of measuring device, pedestrian/occupant safety arrangement, vehicle safety arrangement, etc., can solve problems such as false alarms, and achieve the effect of enhancing the prevention of intrusion

Inactive Publication Date: 2004-03-17
FUJITSU GENERAL LTD
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  • Description
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Problems solved by technology

Therefore, when the car is parked in an urban area where many pedestrians pass by, this abnormal state detection sensor is sensitive to shocks caused by pedestrians accidentally bumping into the car or shocks caused by strong winds or heavy rains, which are not caused by illegal intrusion into the compartment, resulting in many false alarms

Method used

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Embodiment Construction

[0042] Preferred embodiments of the safety device according to the present invention will be described below with reference to the accompanying drawings.

[0043] figure 1 is a block diagram schematically illustrating the in-vehicle safety device according to the embodiment (1) of the present invention.

[0044] exist figure 1 , the reference numeral 10 denotes an in-vehicle safety device. The in-vehicle safety device 10 includes an impact detection unit 13 having an impact sensor 11 and a signal processing section 12 , a sound pressure detection unit 16 having a sound pressure sensor 14 and a signal processing section 15 , and a microcomputer 17 connected to the alarm unit 20 .

[0045] The shock sensor 11 detects shock or vibration applied from the outside, and includes a semiconductor-type pressure-sensitive sensor for outputting a voltage value according to the applied shock level. The shock detected by the shock sensor 11 is converted into a signal wave and output to t...

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Abstract

A security device includes an impact sensing unit for sensing an impact, a sound pressure sensing unit for sensing a sound pressure, an abnormal degree determination unit for determining an abnormal degree based on a level of an impact sensing signal sensed by the impact sensing unit and a level of a sound pressure sensing signal sensed by the sound pressure sensing unit, and an alerting process unit for performing a predetermined alerting process based on a determination result of the abnormal degree by the abnormal degree determination unit.

Description

technical field [0001] The present invention relates to a security device, and more particularly, to a security device that performs an alarm process by detecting abnormal conditions, such as breaking into a house by illegal means. Background technique [0002] The conventional safety device includes an abnormal state detection sensor composed of only an impact sensor, which is low in cost and has relatively good detection sensitivity. The impact sensor can detect a relatively slight impact to the window glass or the vehicle body with high sensitivity. Therefore, when the car is parked in an urban area where many pedestrians pass by, this abnormal state detection sensor is sensitive to the shock caused by the pedestrian accidentally touching the car or to the shock caused by strong wind or heavy rain, which are not caused by illegal The act of trespassing into the compartment resulted in many false alarms. SUMMARY OF THE INVENTION [0003] The present invention has been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/00B60R25/104B60R25/31G08B13/00G08B13/04G08B13/16G08B15/00G08B29/18
CPCG08B13/1663B60R25/104G08B13/1672G08B29/183G08B13/04B60R25/1004B60R25/1009G08B25/001
Inventor 酒井直树
Owner FUJITSU GENERAL LTD
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