Pyroelectric intrusion detection in motor vehicles
First Claim
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1. A method of preventing the theft of a motor vehicle comprising the steps of:
- detecting an entry or an attempted entry of a person into a cabin of the motor vehicle using a pyroelectric detector; and
generating an alert signal when the entry or the attempted entry is detected.
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Abstract
Pyroelectric detector systems may be used in vehicles for security applications, such as intrusion detection and anti-theft alarms. The pyroelectric detectors are small in size, highly reliable and consume very low power. They can be physically and electrically integrated with other vehicle components, including rear-view mirror assemblies in automobiles, without incurring additional installation costs. They can also be easily integrated into aircraft cockpits.
48 Citations
49 Claims
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1. A method of preventing the theft of a motor vehicle comprising the steps of:
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detecting an entry or an attempted entry of a person into a cabin of the motor vehicle using a pyroelectric detector; and
generating an alert signal when the entry or the attempted entry is detected. - View Dependent Claims (2, 3, 4, 5)
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6. A method of detecting intrusion into a motor vehicle comprising the steps of:
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detecting a presence of a person in a cabin of the motor vehicle using a pyroelectric detector; and
generating an alert signal when the presence of a person is detected. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An pyroelectric detection system for detecting the presence or entry of a person in a motor vehicle comprising:
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a pyroelectric detector mounted inside a cabin of the motor vehicle, said detector having an electrical characteristic that changes when an amount of incident infrared radiation changes; and
electronic circuitry responsive to changes in the characteristics of said detector, wherein said circuitry generates a first alert signal when the characteristics are sufficiently correlated with the presence or entry of a person in the motor vehicle. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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Specification