Overheat detection systems and methods
First Claim
1. A system for detecting an overheat condition in a confined space, the system comprising:
- a sensing device attached to a wall of the confined space, the sensing device including a laser range sensor, a thermal imaging sensor, a temperature sensor, and a wireless communication circuit, the laser range sensor configured to measure a distance from the sensing device to a target object within the confined space, the thermal imaging sensor configured to measure thermal radiation emitted from the target object, the temperature sensor configured to measure an ambient temperature within the confined space, the wireless communication circuit configured to remotely communicate distance data representing the distance measured by the laser range sensor, radiation data representing the thermal radiation measured by the thermal imaging sensor, and ambient temperature data representing the ambient temperature measured by the temperature sensor; and
one or more processors configured to receive the distance data, the radiation data, and the ambient temperature data from the sensing device, the one or more processors configured to determine a temperature of the target object relative to the ambient temperature within the confined space based on the distance data, the radiation data, and the ambient temperature data.
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Accused Products
Abstract
A system for detecting an overheat condition in a confined space includes a sensing device and one or more processors. The sensing device is attached to a wall of the confined space. The sensing device includes a laser range sensor, a thermal imaging sensor, and a wireless communication circuit. The laser range sensor measures a distance from the sensing device to a target object within the confined space. The thermal imaging sensor measures thermal radiation emitted from the target object. The wireless communication circuit remotely communicates distance data representing the distance measured by the laser range sensor and radiation data representing the thermal radiation measured by the thermal imaging sensor. The one or more processors are configured to determine a temperature of the target object based on the distance data and the radiation data.
46 Citations
20 Claims
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1. A system for detecting an overheat condition in a confined space, the system comprising:
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a sensing device attached to a wall of the confined space, the sensing device including a laser range sensor, a thermal imaging sensor, a temperature sensor, and a wireless communication circuit, the laser range sensor configured to measure a distance from the sensing device to a target object within the confined space, the thermal imaging sensor configured to measure thermal radiation emitted from the target object, the temperature sensor configured to measure an ambient temperature within the confined space, the wireless communication circuit configured to remotely communicate distance data representing the distance measured by the laser range sensor, radiation data representing the thermal radiation measured by the thermal imaging sensor, and ambient temperature data representing the ambient temperature measured by the temperature sensor; and one or more processors configured to receive the distance data, the radiation data, and the ambient temperature data from the sensing device, the one or more processors configured to determine a temperature of the target object relative to the ambient temperature within the confined space based on the distance data, the radiation data, and the ambient temperature data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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receiving an electrical activation signal from an RFID reader at a sensing device attached to a wall of a confined space, the sensing device including a laser range sensor, a thermal imaging sensor, and a passive RFID tag including an antenna; remotely communicating, via the antenna, distance data and radiation data from the sensing device to the RFID reader responsive to receiving the electrical activation signal, wherein the distance data represents a distance from the sensing device to a target object within the confined space as measured by the laser range sensor, and the radiation data represents a thermal radiation emitted from the target object as measured by the thermal imaging sensor; determining, via one or more processors operatively connected to the RFID reader, a temperature of the target object based on the distance data and the radiation data communicated by the sensing device; and initiating a remedial action responsive to determining that the temperature of the target object exceeds a threshold temperature associated with an overheat condition. - View Dependent Claims (15, 16, 17)
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18. A sensing device comprising:
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a substrate having a first side and an opposite second side, the second side configured to be attached to a wall of a confined space, the first side facing towards a target object within the confined space, wherein the substrate is a flexible, heat-resistant, fiber-based fabric; a thermal imaging sensor mounted on the substrate and configured to measure radiation data representing thermal radiation emitted from the target object; a laser range sensor mounted on the substrate and configured to measure distance data representing a distance of the target object from the sensing device; and a wireless communication circuit mounted on the substrate and configured to remotely communicate the distance data and the radiation data measured by the sensing device. - View Dependent Claims (19, 20)
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Specification