Rotating sensor for occupancy detection
First Claim
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1. A system to detect occupants, the system comprising:
- a first sensor configured to rotate a field of view of the first sensor over an area;
a second sensor configured to rotate a field of view of the second sensor over the area, the second sensor positioned relative to the first sensor such that the field of view of the second sensor overlaps the field of view of the first sensor in at least a portion of the area; and
an occupant count module configured to;
determine a first number of occupants detected by the first sensor based on sensor data generated during the rotation of the field of view of the first sensor;
determine a second number of occupants detected by the second sensor based on sensor data generated during the rotation of the field of view of the second sensor; and
determine a number of occupants in the area to be a largest one of the first number of occupants detected by the first sensor and the second number of occupants detected by the second sensor.
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Abstract
A system to detect occupants is provided. The system may rotate the field of views of multiple sensors in order to scan an area. The system may scan the area multiple times. The system may determine the number of occupants in the area based on a comparison of a scan of the area with a scan of the area when the area is determined to be unoccupied. The system may determine the number of occupants in the area based on a maximum number of occupants detected by any of the sensors. The system may also determine a location of an object or an occupant from scans of the area obtained from multiple sensors.
28 Citations
17 Claims
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1. A system to detect occupants, the system comprising:
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a first sensor configured to rotate a field of view of the first sensor over an area; a second sensor configured to rotate a field of view of the second sensor over the area, the second sensor positioned relative to the first sensor such that the field of view of the second sensor overlaps the field of view of the first sensor in at least a portion of the area; and an occupant count module configured to; determine a first number of occupants detected by the first sensor based on sensor data generated during the rotation of the field of view of the first sensor; determine a second number of occupants detected by the second sensor based on sensor data generated during the rotation of the field of view of the second sensor; and determine a number of occupants in the area to be a largest one of the first number of occupants detected by the first sensor and the second number of occupants detected by the second sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus to detect occupants, the apparatus comprising:
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a memory; and a processor in communication with the memory, the memory comprising instructions executable by the processor to; determine a first number of occupants detected by a first sensor based on sensor data generated by the first sensor, wherein the sensor data is generated from information collected during a rotation of a field of view of the first sensor over an area; determine a second number of occupants detected by a second sensor based on sensor data generated by a second sensor, wherein the sensor data is generated from information collected during a rotation of a field of view of the second sensor over the area, the second sensor positioned relative to the first sensor such that the field of view of the second sensor overlaps the field of view of the first sensor in at least a portion of the area; and determine a total number of occupants in the area to be a largest one of a plurality of detected occupancy numbers, the detected occupancy numbers comprising the first number of occupants detected by the first sensor and the second number of occupants detected by the second sensor. - View Dependent Claims (9, 10)
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11. A method for detecting occupants, the method comprising:
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rotating a field of view of a first sensor over an area; rotating a field of view of a second sensor over the area, the second sensor positioned relative to the first sensor such that the field of view of the second sensor overlaps the field of view of the first sensor in at least a portion of the area; determining a first number of occupants detected by the first sensor during the rotation of the field of view of the first sensor; determining a second number of occupants detected by the second sensor during the rotation of the field of view of the second sensor; and determining a number of occupants in the area to be equal to a largest one of a plurality of detected occupancy numbers, the detected occupancy numbers comprising the first number of occupants detected by the first sensor and the second number of occupants detected by the second sensor. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification