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1. CN1602263 - Driverless vehicle guidance system and method

Office China
Application Number 02824893.7
Application Date 11.12.2002
Publication Number 1602263
Publication Date 30.03.2005
Grant Number 100345715
Grant Date 31.10.2007
Publication Kind C
IPC
B62D 1/24
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
DMOTOR VEHICLES; TRAILERS
1Steering controls, i.e. means for initiating a change of direction of the vehicle
24not vehicle-mounted
G01C 21/06
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
04by terrestrial means
06involving measuring of drift angle; involving correction for drift
CPC
B60T 7/16
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL
7Brake-action initiating means
12for automatic initiation; for initiation not subject to will of driver or passenger
16operated by remote control, i.e. initiating means not mounted on vehicle
Applicants Webb Co. Jervis B.
杰维斯·B·韦布国际公司
Inventors Marino Mark
马克·马里诺
Honey Elvin K. Di
埃尔文·K·霍尼
Agents cang jianmeng wang yanjiang
隆天国际知识产权代理有限公司
隆天国际知识产权代理有限公司
Priority Data 60/341,195 12.12.2001 US
Title
(EN) Driverless vehicle guidance system and method
(ZH) 无人驾驶车辆导向系统和方法
Abstract
(EN)
A vehicle guidance system (12) for guiding a vehicle (10) along a magnetic marker (20) including a first magnetic sensor (28) having a sensing axis (32) for measuring a first magnetic field. A second magnetic sensor (30) has a sensing axis (36), measuring a second magnetic field. The second axis crosses the first axis at a vehicle guide point (38). A processor (16) configured to receive data representative of the magnetic field and calculates a lateral offset between the guide point and magnetic marker based upon the measured magnetic fields. A method for guiding a vehicle includes measuring magnetic field strength proximate the marker, measuring ambient magnetic field strength remote from the marker, nulling the ambient magnetic field by removing the remote magnetic field strength from the proximate magnetic field strength, calculating a lateral displacement between the vehicle responsive to the lateral displacement between the vehicle and the marker.

(ZH)

一种车辆导向系统(12),用于沿一磁标记(20)导向车辆(10),包括:具有一感测轴(32)的一第一磁性传感器(28),用于测量一第一磁场。具有一感测轴(36)的一第二磁性传感器(30),用于测量一第二磁场。该第二感测轴与该第一感测轴交叉于一车辆导向点(38)上。一处理器(16)配置为接收表征该磁场的数据,并基于该测量的磁场计算该导向点和该磁标记之间的横向偏移。一种用于导向车辆的方法,包括:测量接近该标记的磁场强度,测量远离该标记的背景磁场强度,通过从该接近的磁场强度中去除该远离的磁场强度来将该背景磁场无效化,计算车辆和标记之间的横向位移,以及响应该车辆和该标记之间的横向位移来导向该车辆。