Parking space status sensing system and method
US10082566B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2017 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | May 14, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A parking space status sensing system is used for detecting a state of a parking space. A parking space status sensing system includes a first antenna array transmitting a first signal, a second antenna array receiving a second signal feedback reflected from an object, a radio-frequency transceiver receiving the second signal and performing down-conversion and demodulation on the second signal with receiving a local signal modulated from a triangularly modulated signal by the radio-frequency transceiver, to generate a first beat frequency signal. An analog-distance-signal-integral information and an analog-speed-signal-integral information of the object are obtained from the first beat frequency signal by related analog signal processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.