发明名称 Autonomous travel system
摘要 Provided is an autonomous travel system having an operation management unit including a map database with a combination of topological region maps, on which the range of travel of a vehicle is expressed as points and lines, and metric region maps, on which the travel range is expressed on planar maps; a vehicle position management unit for managing the position of the vehicle; and a vehicle travel planning unit for planning vehicle travel, which, if the vehicle is present near the boundary of a map, blocks the map boundary so that other vehicles will not advance into another map. The operation management unit is provided with a blockage setting unit for dividing a boundary section of a map into a plurality of regions and releasing the blockage of the boundary of a divided region in which no vehicles are present in front of the vehicle in the direction of travel.
申请公布号 US8983709(B2) 申请公布日期 2015.03.17
申请号 US201114357130 申请日期 2011.11.09
申请人 Hitachi, Ltd. 发明人 Bando Mikio;Kawamata Yukihiro
分类号 G05D1/02;G01C21/34;B60W30/14;G01C21/28;G08G1/0962;G08G1/0967 主分类号 G05D1/02
代理机构 Crowell & Moring LLP 代理人 Crowell & Moring LLP
主权项 1. An autonomous travel system comprising: a fleet management unit which comprises: a map database in which a map of a first section and a map of a second section are mixed, the first section being a section in which a vehicle travel range is represented by a point and a line, the second section being a section in which a vehicle travel range is represented by a plane;a vehicle position management unit which manages positions of a plurality of vehicles; anda block setting unit which determines whether there is a vehicle near a boundary between a first section and a second section and, if there is a vehicle near a boundary, sets the boundary in a blocked state so that other vehicles do not enter there, the block setting unit dividing the boundary, for which a blocked state is set, into a plurality of regions and, for each of the divided regions through which no vehicle passes, releasing a blocked state of a boundary of a divided region; the fleet management unit notifying respective vehicles of travel paths; and a vehicle travel planning unit which plans a travel path of a vehicle based on blocked states of divided regions that are set on a boundary between a first section and a second section; wherein the block setting unit determines, when dividing a boundary into a plurality of regions, lengths of a plurality of regions created by dividing a boundary according to a positional relation between a vehicle which approaches the boundary and the boundary.
地址 Tokyo JP