Endangered child in vehicle alarm
First Claim
1. A system for detecting and signaling that an animal or human is in an enclosed space, which comprises:
- a monitoring device for monitoring temperature in an enclosed space wherein the monitoring device specifies an unacceptable temperature for the enclosed space;
an infrared device for detecting a presence of a human or animal in the enclosed space when the unacceptable temperature is reached, where the presence of an immobile human or animal trips the infrared device by temperature differences associated with thermography; and
a detection circuit responsive to the monitoring device and the infrared device; and
the detection circuit determines a state of operation in which said unacceptable temperature is reached and said infrared device is not tripped, wherein in said state of operation the infrared device scans and images the enclosed space to obtain a first infrared image and after a period of time a second infrared image wherein the first and second images are compared to detect the presence of the animal or human by movement by the detection circuit; and
a signaling device responsive to the detection circuit for communicating a signal to a receiver outside the enclosed space indicating the presence of the human or the animal in the enclosed space when the unacceptable temperature is reached and presence of an immobile or moving animal or human is detected.
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Accused Products
Abstract
An alarm system is disclosed for detecting and signaling that a human or an animal is in an enclosed space such as a motor vehicle which includes a monitoring device for monitoring temperature in an enclosed space. The monitoring device may specify a minimum and/or maximum temperature, or a range of temperatures in the enclosed space. A detection device detects the presence of a human or animal in the enclosed space when an unacceptable temperature is reached. In the system disclosed, the human or animal is unable to exit the enclosed space, and a signaling device is used to communicate a signal to a receiver outside the enclosed space indicating the presence of the human or the animal in the enclosed space.
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Citations
15 Claims
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1. A system for detecting and signaling that an animal or human is in an enclosed space, which comprises:
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a monitoring device for monitoring temperature in an enclosed space wherein the monitoring device specifies an unacceptable temperature for the enclosed space; an infrared device for detecting a presence of a human or animal in the enclosed space when the unacceptable temperature is reached, where the presence of an immobile human or animal trips the infrared device by temperature differences associated with thermography; and a detection circuit responsive to the monitoring device and the infrared device; and the detection circuit determines a state of operation in which said unacceptable temperature is reached and said infrared device is not tripped, wherein in said state of operation the infrared device scans and images the enclosed space to obtain a first infrared image and after a period of time a second infrared image wherein the first and second images are compared to detect the presence of the animal or human by movement by the detection circuit; and a signaling device responsive to the detection circuit for communicating a signal to a receiver outside the enclosed space indicating the presence of the human or the animal in the enclosed space when the unacceptable temperature is reached and presence of an immobile or moving animal or human is detected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for detecting and signaling that an animal or person is in a enclosed space, comprising:
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monitoring temperature in an enclosed space to detect an unacceptable temperature for the enclosed space; initiating an infrared device when the temperature exceeds a specified temperature; said initiating comprising; periodically scanning and imaging the enclosed space with the infrared device for immobilized animals or humans where the infrared device is tripped by immobilized animals or humans detected by temperature differences associated with thermography; comparing the periodically scanned images from the infrared device to detect the presence of the animal or human in the enclosed space by movement when the temperature in the enclosed space is unacceptable and an earlier scan did not result in a tripping of the infrared device; and communicating an alarm outside the enclosed space when the animal or person is detected in the enclosed space. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification