Monitor system, central monitor apparatus, on-vehicle monitor apparatus, monitor method, monitor program, computer-readable recording medium containing the same

Abstract

A monitoring system which can monitor a plurality of vehicles (1) includes vibration sensing units (15) each sensing a vibration of the associated vehicle (1), a sensed time specifying unit (20b) which specifies an instant at which the vibration of the vehicle (1) is sensed by the vibration sensing unit, and an abnormality determining unit (20a) which determines, when a vibration of one of the vehicles (1) is sensed by the associated vibration sensing unit (15), whether the vibration is caused by preparations for theft with respect to the vehicle (1) or the vibration is caused by environmental influences on the vehicle (1). The abnormality determining unit (20a) carries out the determination on ground of sensing results obtained by the vibration sensing units (15) of the respective vehicles (1) and a result of specification carried out by the sensed time specifying unit (20b). With this, a possibility of incorrectly identifying a vibration not being attributed to preparations for theft as a vibration attributed to preparations for theft.

Description

[0001] This Application is a Divisional of application Ser. No. 10 / 487,812 filed Jul. 29, 2004, which is a national stage of PCT / JP02 / 08393 filed Aug. 20, 2002, which claims priority from Japanese patent application 2001-256954 filed Aug. 27, 2001. The entire content of the aforementioned applications are incorporated herein by referenceTECHNICAL FIELD [0002] The present invention relates to a monitoring system, central monitoring apparatus, and on-board monitoring apparatus for monitoring a vehicle to sense the occurrence of an abnormality concerning the vehicle. BACKGROUND ART [0003] Monitoring systems (antitheft systems) for monitoring a vehicle to prevent theft have been developed to this day. Such a monitoring system is, for instance, arranged in such a manner that, a vibration sensor is attached to a vehicle, and when vibration of the vehicle is sensed, it is assumed that someone is preparing theft (preparations for theft), so that a warning such as blowing a horn is performed...

AI Technical Summary

Benefits of technology

[0014] When vehicles being monitored are in a relatively narrow area, abnormalities can be correctly identified without taking the positions of the vehicles into consideration. This is because vibrations of these vehicles in a narrow area, which are caused by, for instance, an earthquake, occur in much the same way. In the meantime, when the vehicles being monitored are spread in a relatively wide area, it is preferable that the identification of abnormalities is carried out taking the positions of the vehicles into consideration. For instance, when the vibration sensed by the target vehicle is caused by an earthquake, a vehicle geographically distant from the target vehicle may not sense vibration. This is because, if the identification of abnormalities is car...

Problems solved by technology

This is because, if the identification of abnormalities is carried out on ground of the number of the vehicles sensed ...

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