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1. WO2019114805 - METHOD FOR DETERMINING SAFE SPEED INFORMATION OF ROAD

Publication Number WO/2019/114805
Publication Date 20.06.2019
International Application No. PCT/CN2018/120991
International Filing Date 14.12.2018
IPC
G08G 1/0967 2006.1
GPHYSICS
08SIGNALLING
GTRAFFIC CONTROL SYSTEMS
1Traffic control systems for road vehicles
09Arrangements for giving variable traffic instructions
0962having an indicator mounted inside the vehicle, e.g. giving voice messages
0967Systems involving transmission of highway information, e.g. weather, speed limits
G01C 21/26 2006.1
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
CPC
B60W 2552/30
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2552Input parameters relating to infrastructure
30Road curve radius
B60W 2552/53
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2552Input parameters relating to infrastructure
53Road markings, e.g. lane marker or crosswalk
B60W 2555/60
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2555Input parameters relating to exterior conditions, not covered by groups B60W2552/00, B60W2554/00
60Traffic rules, e.g. speed limits or right of way
B60W 2556/10
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2556Input parameters relating to data
10Historical data
B60W 2556/40
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2556Input parameters relating to data
40High definition maps
B60W 2720/10
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
2720Output or target parameters relating to overall vehicle dynamics
10Longitudinal speed
Applicants
  • 蔚来汽车有限公司 NIO NEXTEV LIMITED [CN]/[CN]
Inventors
  • 赵来刚 ZHAO, Laigang
  • 郭道演 GUO, Daoyan
  • 章健勇 ZHANG, Jianyong
  • 蔡雄风 CAI, Xiongfeng
Agents
  • 中国专利代理(香港)有限公司 CHINA PATENT AGENT (HK)LTD.
Priority Data
201711346070.215.12.2017CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR DETERMINING SAFE SPEED INFORMATION OF ROAD
(FR) PROCÉDÉ DE DÉTERMINATION D'INFORMATIONS DE VITESSE DE SÉCURITÉ D'UNE ROUTE
(ZH) 确定道路安全速度信息的方法
Abstract
(EN) A method for determining safe speed information of a road. The method comprises: acquiring first speed limit information of a current road from a navigation map (S10); acquiring second speed limit information of the current road from a high-precision map (S12); capturing an image of at least one road sign on the current road by means of an image capturing device, and identifying the image to determine third speed limit information of the current road (S14); determining the curvature of at least one car lane of the current road (S16); and determining a safe speed associated with a corresponding road segment of the current road on the basis of the first speed limit information, the second speed limit information, the third speed limit information, and the curvature (S18). The method improves the driving experience and driving safety of users, and reduces a degree of involvement for a driver when driving.
(FR) La présente invention concerne un procédé de détermination d'informations de vitesse de sécurité d'une route. Le procédé consiste : à acquérir des premières informations de limitation de vitesse d'une route actuelle à partir d'une carte de navigation (S10); à acquérir des deuxièmes informations de limitation de vitesse de la route actuelle à partir d'une carte de haute précision (S12); à capturer une image d'au moins un panneau de signalisation sur la route actuelle au moyen d'un dispositif de capture d'image, et à identifier l'image pour déterminer des troisièmes informations de limitation de vitesse de la route actuelle (S14); à déterminer la courbure d'au moins une voie de véhicules de la route actuelle (S16); et à déterminer une vitesse de sécurité associée à un segment de route correspondant de la route actuelle sur la base des premières informations de limitation de vitesse, des deuxièmes informations de limitation de vitesse, des troisièmes informations de limitation de vitesse et de la courbure (S18). Le procédé améliore l'expérience de conduite et la sécurité au volant des utilisateurs, et réduit un degré d'implication d'un conducteur lors de la conduite.
(ZH) 一种确定道路安全速度信息的方法,包括:从导航地图获取当前道路的第一限速信息(S10);从高精度地图获取当前道路的第二限速信息(S12);通过摄像装置捕获当前道路上的至少一指示标志的图像,识别图像以确定当前道路的第三限速信息(S14);确定当前道路的至少一车道的曲率(S16);以及,基于第一限速信息、第二限速信息和第三限速信息,及曲率,来确定当前道路关于相应路段的安全速度(S18)。该方法有利于提高用户的驾驶体验、驾驶安全,还能够减少驾驶员对驾驶的介入程度。
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