Title:
RADAR RANGING METHOD AND APPARATUS, AND DEVICE AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/082117
Kind Code:
A1
Abstract:
Disclosed in the present application are a radar ranging method and apparatus, and a device and a storage medium. The method comprises: controlling a radar to emit electromagnetic wave signals to a plurality of reflectors and to receive a first echo signal that is reflected by means of a hoistway; converting the first echo signal into a first spectrogram; extracting, from the first echo signal, a first feature which is presented by a first target object and a second target object in terms of distribution; matching the first feature with a second feature, which is obtained by means of pre-learning the first target object and the second target object in terms of distribution; and if the matching is successful, extracting, as the position of a lift car in the hoistway, the distance between the radar and the first target object, which distance is labeled for the second feature.
Inventors:
CHEN GANG (CN)
LIU XIANZHAO (CN)
TANG QIWEI (CN)
ZHONG ZHAOFENG (CN)
GUO WEIWEN (CN)
LIU XIANZHAO (CN)
TANG QIWEI (CN)
ZHONG ZHAOFENG (CN)
GUO WEIWEN (CN)
Application Number:
PCT/CN2022/125816
Publication Date:
April 25, 2024
Filing Date:
October 18, 2022
Export Citation:
Assignee:
HITACHI BUILDING TECH GUANGZHOU CO LTD (CN)
International Classes:
G01S13/34
Foreign References:
| CN111847155A | 2020-10-30 | |||
| CN113805166A | 2021-12-17 | |||
| CN110127478A | 2019-08-16 | |||
| CN111689316A | 2020-09-22 | |||
| US20220018943A1 | 2022-01-20 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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