Method and device for sensing an object or a person in the interior of a vehicle
First Claim
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1. A device for determining a presence of an object in the interior of a vehicle, comprising:
- a sensor for detecting an object in an interior of a vehicle;
a power supply;
a control unit connected to said sensor, said control unit being programmed to selectively operate said sensor;
in a normal operating mode, when a sufficient power supply is detected by said control unit, during which said sensor consumes a first average power; and
in an emergency operating mode, when an insufficient power supply is detected by said control unit, during which said sensor consumes a second average power less than the first average power, said sensor being adapted to scan the object with a predefined scanning rate, the scanning rate being lower during the emergency operating mode than the scanning rate during the normal operating mode.
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Abstract
A sensor for detecting an object or a person in the interior of a vehicle consumes a first average power in a normal operating mode. The power supply for supplying the sensor is monitored. The sensor is operated with a second average power which is reduced in comparison with the first average power if the power supply is considered as no longer being sufficient for the normal operating mode.
44 Citations
18 Claims
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1. A device for determining a presence of an object in the interior of a vehicle, comprising:
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a sensor for detecting an object in an interior of a vehicle;
a power supply;
a control unit connected to said sensor, said control unit being programmed to selectively operate said sensor;
in a normal operating mode, when a sufficient power supply is detected by said control unit, during which said sensor consumes a first average power; and
in an emergency operating mode, when an insufficient power supply is detected by said control unit, during which said sensor consumes a second average power less than the first average power, said sensor being adapted to scan the object with a predefined scanning rate, the scanning rate being lower during the emergency operating mode than the scanning rate during the normal operating mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for determining a presence of an object in the interior of a vehicle, comprising:
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a sensor for detecting an object in an interior of a vehicle;
a power supply;
a control unit connected to said sensor, said control unit being programmed to selectively operate said sensor;
in a normal operating mode, when a sufficient power supply is detected by said control unit, during which said sensor consumes a first average power; and
in an emergency operating mode, when an insufficient power supply is detected by said control unit, during which said sensor consumes a second average power less than the first average power, said sensor being adapted to scan the object with a predefined scanning rate, the scanning rate being reduced during the emergency operating mode in comparison with the predefined scanning rate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification