Distance sensor device
First Claim
Patent Images
1. A distance sensor device, comprising:
- at least one distance sensor, at least one of the at least one distance sensor having at least two different modes of operation; and
a distance sensor control device for activating each of the at least one distance sensor via a respective signal line using an activation pulse, wherein the distance sensor control device is operable to control a switchover between the at least two different modes of operation by varying at least one of a duration and an amplitude of the activation pulse.
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Abstract
A distance sensor device, in particular as a component of a parking aid or reversing aid for a motor vehicle, includes one or more distance sensors and a distance sensor control device for the purpose of activating the distance sensor or sensors via a respective signal line using an activation pulse that is quasi-digital and time-analog. At least one of the distance sensors has two different modes of operation. The modes of operation may be switched by varying the duration and/or amplitude of the activation from the distance sensor control device.
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Citations
8 Claims
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1. A distance sensor device, comprising:
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at least one distance sensor, at least one of the at least one distance sensor having at least two different modes of operation; and
a distance sensor control device for activating each of the at least one distance sensor via a respective signal line using an activation pulse, wherein the distance sensor control device is operable to control a switchover between the at least two different modes of operation by varying at least one of a duration and an amplitude of the activation pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
a bidirectional open collector interface arranged between the distance sensor control device and each of the at least one distance sensor.
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6. The distance sensor device of claim 1, wherein the at least two different modes of operation include at least one of a measurement range mode, a signal transmission mode, a test mode, and a service mode for calibrating a respective one of the at least one distance sensor.
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7. The distance sensor device of claim 6, wherein the at least two different modes of operation include a digital signal transmission mode.
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8. The distance sensor device of claim 1, wherein the distance sensor control device is operable as a common control device for all of the at least one distance sensor, and is connected to each of the at least one distance sensor via a single respective signal line.
Specification