Method and device for determining the size and position of a parking space
US7492282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Aug 18, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/935
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method and a device for determining the size and position of a parking space in relation to the position of a vehicle while the vehicle is driving past the parking space, the parking space extending longitudinally to the traffic lane and transversely to the traffic lane. It is the objective of the present invention to provide an ultrasound-based system for parking space measurement that operates more precisely than the known ultrasound-based systems for parking space measurement, even when passing the parking space at high speed and given high sensing depth of the parking space. Due to the fact that the width of the parking space is determined with the aid of a first ultrasonic sensor having a first sensitivity, and the depth of the parking space is detected with the aid of a second ultrasonic sensor having a second sensitivity, the sensitivity of the first ultrasonic sensor being lower than the sensitivity of the second ultrasonic sensor, it is possible to achieve higher accuracy in the parking space measurement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.