Motor vehicle occupancy and high temperature alarm module
First Claim
1. An apparatus for monitoring a vehicle compartment, comprising:
- an occupancy sensor for generating a first signal indicative of the compartment being occupied;
a temperature element for generating a second signal indicative of a vehicle compartment ambient temperature exceeding a preset limit; and
a logic circuit for generating an alarm signal responsive to the first and second signals being generated during a sampling period, wherein the sampling period is initiated after expiration of a delay period following each simultaneous occurrence of an indication of a closed vehicle door and the second signal being generated.
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Accused Products
Abstract
A machine to turn on the occupancy sensor(s) of a motor vehicle using a temperature sensing element. The temperature element senses a dangerously high temperature in the passenger compartment of a motor vehicle and energizes the occupancy sensors. The occupancy sensors energize for a time period sufficient to determine the presence or absence of an occupant. If no occupant is detected, the occupancy sensors de-energize after a set period of time. If an occupant is detected, an audible alarm is enabled to draw attention to the motor vehicle. Once the alarm is active, a key must be used to reset it. If no occupant is detected each operation of a door switch will cause an additional sensing provided the temperature remains dangerously high. This logic is only energized or enabled when a passenger compartment is dangerously high.
26 Citations
27 Claims
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1. An apparatus for monitoring a vehicle compartment, comprising:
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an occupancy sensor for generating a first signal indicative of the compartment being occupied;
a temperature element for generating a second signal indicative of a vehicle compartment ambient temperature exceeding a preset limit; and
a logic circuit for generating an alarm signal responsive to the first and second signals being generated during a sampling period, wherein the sampling period is initiated after expiration of a delay period following each simultaneous occurrence of an indication of a closed vehicle door and the second signal being generated. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for monitoring a vehicle having a compartment, comprising:
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an occupancy sensor for sensing whether the compartment is occupied;
a temperature sensor for measuring a vehicle compartment ambient temperature;
a logic component connected to the occupancy sensor and the temperature sensor to determine whether to initiate an alarm based upon information received from the occupancy and temperature sensors;
an alarm component connected to the logic component for producing an alarm when initiated by the logic component; and
a vehicle door sensor to indicate an open/closed condition of a vehicle door, wherein the logic component includes a sampling period that is initiated after each simultaneous occurrence of the occupancy sensor indicating the vehicle is occupied, the vehicle door sensor indicating that a vehicle door condition has changed between open and closed, and the temperature sensor indicating a temperature exceeding a preset limit. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of monitoring a vehicle having a compartment, comprising:
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generating a first signal indicative of the compartment being occupied;
generating a second signal indicative of a vehicle compartment ambient temperature exceeding a preset limit; and
generating an alarm signal responsive to the first and second signals being generated during a sampling period, wherein the sampling period is initiated after expiration of a delay period following each simultaneous occurrence of an indication of a closed vehicle door and the second signal generated. - View Dependent Claims (15, 16, 17)
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18. An apparatus, comprising:
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an occupancy component for generating a first signal indicative of a vehicle compartment being occupied;
a temperature component for generating a second signal indicative of a vehicle compartment ambient temperature exceeding a preset limit;
a logic component for generating an alarm signal responsive to the first and second signals being generated; and
a delay component that delays the generation of the alarm for a period of time upon an indication of a vehicle door closing;
wherein the period of time is initiated after each simultaneous occurrence of an indication of a closed vehicle door and the second signal being generated. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. An apparatus for monitoring a vehicle compartment, comprising:
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an occupancy component for generating a first signal indicative of the compartment being occupied;
a temperature component for generating a second signal indicative of a vehicle compartment ambient temperature exceeding a preset limit; and
a logic component for generating an alarm signal responsive to the first and second signals being generated during a sampling period, wherein the sampling period is initiated after each simultaneous occurrence of an indication of a closed vehicle door and the second signal being generated. - View Dependent Claims (26, 27)
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Specification