Title:
自動車において交通渋滞の状況を検出する方法及び装置
Document Type and Number:
Japanese Patent JP7414154
Kind Code:
B2
Abstract:
Method for detecting traffic congestion using a motor vehicle radar system, comprising multi-beam radar sensors (21-24) in the rear and front corners of the vehicle, the method comprising the steps of: dividing the radar sensors (Df_l, Df_r, Dr_l, Dr_r) into four angular sectors (Zfront, Zrear, Zleft, Zright) extending to the front, to the rear, to the right and to the left of the vehicle respectively, selecting for each angular sector, from the beams for which no target is detected, the (Dfront, Drear, Dleft, Dright) beam having the shortest reach distance, detecting the amplitude of reflected beams corresponding respectively to the selected beams, and—analysing the period during which the amplitude of the reflected beams is maintained relative to a predefined time threshold for each angular sector respectively, the method detecting a traffic congestion situation when the analysing step determines simultaneously for the four angular sectors that the period during which the amplitude of the reflected beams is maintained is greater than or equal to the predefined time threshold.
More Like This:
Inventors:
Pita-Gil, Guillermo
Zail, Salim
Zail, Salim
Application Number:
JP2022562854A
Publication Date:
January 16, 2024
Filing Date:
March 22, 2021
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
G08G1/01; G05D1/43; G08G1/16
Domestic Patent References:
| JP2006350699A | ||||
| JP2005030935A |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokoshie Patent Office