Method for the Detection of Surroundings

• US 20090303099A1
• Filed: 10/18/2006
• Published: 12/10/2009
• Est. Priority Date: 11/14/2005
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Zimmermann, Uwe, Merkel, Rudolf, Weilkes, Michael
• Granted Patent: US 8,310,654 B2
• Time in Patent Office: Days
• US Class Current: 342/27
• CPC Class Codes: G01S 17/14 wherein a voltage or current pulse is initiated and terminated in accordance with the pulse transmission and echo reception respectively, e.g. using counters
• CPC Class Codes: G01S 17/931 of land vehicles
• CPC Class Codes: G01S 7/483 Details of pulse systems

Abstract

A method for the detection of surroundings is performed using a source which emits pulsed signals. Signals backscattered from an object are detected by a sensor. When performing the method, a presence of the object is detected during coarse sampling. To determine a variable related to the detected object, operating parameters of the source are set for fine sampling.

Claims

1-10. -10. (canceled)

11. A method for the detection of surroundings, comprising:

emitting pulsed signals using a source;

detecting signals backscattered from an object using a sensor;

detecting a presence of the object during coarse sampling; and

setting operating parameters of the source for fine sampling to determine a variable related to the detected object.

12. The method according to claim 11, wherein the pulsed signals have a variable pulse-pause ratio.

13. The method according to claim 11, wherein a minimum pulse-pause ratio and a maximum pulse power are set to perform the coarse sampling.

14. The method according to claim 11, wherein the operating parameters of the source are set for performing the fine sampling as a function of a distance to the object.

15. A device for the detection of surroundings, comprising:

a source, which emits pulsed signals; and

a circuit system, which includes a reference pulse winding for generating a reference pulse in an input path on a primary side of an RF transmitter.

16. The device according to claim 15, further comprising at least one further component, the reference pulse being implemented to determine a propagation time of the at least one further component.

17. The device according to claim 15, further comprising a sensor for sampling pulsed signals which are backscattered from an object.

18. The device according to claim 15, wherein the device is for determining a distance to an object.

19. A computer-readable medium containing a computer program which when executed by a processor performs the following method for the detection of surroundings:

emitting pulsed signals using a source;

detecting signals backscattered from an object using a sensor;

detecting a presence of the object during coarse sampling; and

setting operating parameters of the source for fine sampling to determine a variable related to the detected object.