Fire suppression systems, devices, and methods
First Claim
1. A method of responding to a condition in an exhaust ventilation system, the method comprising:
- providing a camera positioned to detect conditions of a cooking appliance and configured to detect both IR color and optical bands and to output at least one signal;
receiving the at least one signal from the camera by a controller;
detecting by the controller a fire condition responsively to the at least one signal received from the camera; and
regulating by the controller a fire suppression mechanism responsively to the detecting.
1 Assignment
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Accused Products
Abstract
A method of responding to a condition in an exhaust ventilation system that has an exhaust hood includes receiving, at a control module, an exhaust air temperature signal representing a temperature of the exhaust air in a vicinity of the exhaust hood, the exhaust air temperature signal being generated by a temperature sensor. The method also includes receiving a radiant temperature signal representing a temperature of a surface of a cooking appliance that generates the exhaust air, the radiant temperature signal being generated by a radiant temperature sensor. Further, the method includes receiving a pressure signal representing the pressure in the hood and determining a state of the cooking appliance based on the received exhaust air temperature signal, the received radiant temperature signal, and the received pressure signal. Finally, the method responds to the determined appliance state by outputting a control signal from the control module.
17 Citations
15 Claims
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1. A method of responding to a condition in an exhaust ventilation system, the method comprising:
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providing a camera positioned to detect conditions of a cooking appliance and configured to detect both IR color and optical bands and to output at least one signal; receiving the at least one signal from the camera by a controller; detecting by the controller a fire condition responsively to the at least one signal received from the camera; and regulating by the controller a fire suppression mechanism responsively to the detecting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A combined fire suppression and exhaust flow control system, comprising:
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a controller receiving at least a first signal from at least a camera, the controller being configured to generate an exhaust flow rate command signal for controlling an exhaust flow rate responsively to the first signal from the camera; and the camera positioned to detect conditions of a cooking appliance and configured to detect both IR color and optical bands and to output the first signal, wherein the controller is further configured to generate a fire suppression command signal for controlling a fire suppression mechanism responsively to at least the first signal from the camera. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification