Occupant detection system
First Claim
1. An occupant detection system comprising:
- a sensor for detecting an object in a plurality of predetermined regions by irradiating a plurality of light beams with different predetermined inclination angles toward a seat direction, the sensor being mounted to a ceiling of a vehicle; and
a control unit which, based upon a detection output of the sensor, determines that the seat is vacant if the number of the predetermined regions where the object is detected is below a predetermined number and determines that an occupant is seated in the seat if the number of the predetermined regions where the object is detected is the predetermined number or more.
1 Assignment
0 Petitions
Accused Products
Abstract
To provide an occupant detection system including a sensor for detecting an object in a plurality of predetermined regions by irradiating a plurality of light beams with different predetermined inclination angles toward a seat direction, the sensor being mounted to a ceiling of a vehicle and a control unit which, based upon a detection output of the sensor, determines that the seat is vacant if the number of the predetermined regions where the object is detected is below a predetermined number and determines that an occupant is seated in the seat if the number of the predetermined regions where the object is detected is the predetermined number or more.
15 Citations
8 Claims
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1. An occupant detection system comprising:
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a sensor for detecting an object in a plurality of predetermined regions by irradiating a plurality of light beams with different predetermined inclination angles toward a seat direction, the sensor being mounted to a ceiling of a vehicle; and
a control unit which, based upon a detection output of the sensor, determines that the seat is vacant if the number of the predetermined regions where the object is detected is below a predetermined number and determines that an occupant is seated in the seat if the number of the predetermined regions where the object is detected is the predetermined number or more. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An occupant detection system comprising:
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a first object detection sensor for detecting an object in a plurality of first object detection regions by irradiating a plurality of infrared light beams with different predetermined inclination angles toward a seat direction, the sensor being mounted to a ceiling of a vehicle;
a second object detection sensor for detecting the object in a plurality of second object detection regions whose positional phases are shifted with respect to the plurality of the first object detection regions by irradiating a plurality of infrared beams with different predetermined inclination angles toward these at direction, the second object detection sensor being mounted to the ceiling of the vehicle; and
a control unit which, if detection outputs from the first and second object detection sensors are different, determines that one of the first and second object detection sensors malfunctions. - View Dependent Claims (8)
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Specification