Vehicle alarm system
First Claim
1. A vehicle alarm system for a vehicle having a plurality of operating parts, a plurality of sensors each monitoring a corresponding operating part and an audio reproduction system including an audio frequency amplifier, said vehicle alarm system comprisinga switching circuit for controlling the supply of audio signals to the audio frequency amplifier of the audio reproduction system of a vehicle;
- andan alarm signal supply circuit connected between the sensors and the audio reproduction system of the vehicle for producing an alarm signal when an abnormal condition is detected in an operating part of the vehicle by the corresponding one of the sensors, said switching circuit cutting off the supply of audio signals to the audio frequency amplifier and supplying an alarm signal to said audio frequency amplifier when a sensor provides an abnormal condition signal indicating the occurrence of an abnormal condition in an operating part.
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Accused Products
Abstract
A vehicle alarm system provides an audible alarm in the audio reproduction system of a vehicle when an abnormal condition is detected in an operating part of the vehicle. A sensor at each monitored operating part detects an abnormal condition occurring thereat and produces an abnormal condition signal when detecting such a condition. The abnormal condition signals from the sensors are supplied as inputs to an alarm signal supply circuit which produces alarm signals having different frequencies. A switching circuit switches the audio reproduction system from audio signals to an alarm signal upon the receipt of an abnormal condition signal from a sensor. The alarm signal supply circuit then supplies an alarm signal to the audio frequency amplifier of the audio reproduction system. When a plurality of sensors detect abnormal conditions simultaneously, a priority sequence judging circuit determines the degree of importance of each alarm signal and the priority sequence of the abnormal condition signals.
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Citations
10 Claims
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1. A vehicle alarm system for a vehicle having a plurality of operating parts, a plurality of sensors each monitoring a corresponding operating part and an audio reproduction system including an audio frequency amplifier, said vehicle alarm system comprising
a switching circuit for controlling the supply of audio signals to the audio frequency amplifier of the audio reproduction system of a vehicle; - and
an alarm signal supply circuit connected between the sensors and the audio reproduction system of the vehicle for producing an alarm signal when an abnormal condition is detected in an operating part of the vehicle by the corresponding one of the sensors, said switching circuit cutting off the supply of audio signals to the audio frequency amplifier and supplying an alarm signal to said audio frequency amplifier when a sensor provides an abnormal condition signal indicating the occurrence of an abnormal condition in an operating part. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification