AUTONOMOUS VENTILATION SYSTEM
First Claim
1. A method of exhausting or ventilating an area, the method comprising:
- detecting an environmental parameter in a region adjacent to an edge of the exhaust hood using a spillage probe assembly; and
controlling one or more variable-speed fans responsively to the detected environmental parameter.
1 Assignment
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Accused Products
Abstract
An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter.
35 Citations
16 Claims
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1. A method of exhausting or ventilating an area, the method comprising:
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detecting an environmental parameter in a region adjacent to an edge of the exhaust hood using a spillage probe assembly; and controlling one or more variable-speed fans responsively to the detected environmental parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of exhausting or ventilating an area, the method comprising:
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detecting an environmental parameter in a region adjacent to an edge of the exhaust hood using a spillage probe assembly; responsively to the detected environmental parameter meeting or exceeding a first predetermined threshold when one or more variable-speed fans are off, controlling one or more variable-speed fans to have a first speed; and responsively to the detected environmental parameter meeting or exceeding a second predetermined threshold when the one or more variable-speed fans have the first speed, controlling the one or more variable-speed fans to have a second speed greater than the first speed. - View Dependent Claims (13, 14, 15, 16)
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Specification