Moving object movement system and movement path selection method

Patent metadata

Field	Value
Publication number	US-10620635-B2
Application number	US-201515750970-A
Country	US
Kind code	B2
Filing date	Nov 5, 2015
Priority date	Nov 5, 2015
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A moving object movement system includes a moving object that moves in accordance with any one method of autonomous movement or remote controlled movement, a control server that is connected to the moving object via wireless communication, and a traveling path deciding unit that calculates an unable-to-move risk indicating a possibility that movement is unable to be performed in accordance with any one method of the autonomous movement or the remote controlled movement on the basis of map information including movement paths of the moving object, autonomous movement difficulty level information indicating a difficulty level of the autonomous movement by the moving object, and communication quality information indicating a communication quality necessary for the moving object to perform the remote controlled movement, and decides a movement path in which the calculated unable-to-move risk is smallest among the movement paths.

First claim

The invention claimed is:

1. A moving object movement system, comprising:
a moving object that moves in accordance with any one method of autonomous movement or remote controlled movement;
a control server that is connected to the moving object via wireless communication; and
a traveling path deciding unit that calculates an unable-to-move risk indicating a possibility that movement is unable to be performed in accordance with any one method of the autonomous movement or the remote controlled movement on the basis of map information including movement paths of the moving object, autonomous movement difficulty level information indicating a difficulty level of the autonomous movement by the moving object, and communication quality information indicating a communication quality necessary for the moving object to perform the remote controlled movement, and decides a movement path in which the calculated unable-to-move risk is smallest among the movement paths.

2. The moving object movement system according to claim 1 , wherein the traveling path deciding unit calculates a remote control risk indicating a possibility of switching to the remote controlled movement on the basis of an autonomous movement release risk indicating a possibility that the autonomous movement is released and a remote controlled movement release risk indicating a possibility that the remote controlled movement is released, calculates a cost weighted to the calculated remote control risk and the unable-to-move risk, and decides the movement path on the basis of the calculated cost.

3. The moving object movement system according to claim 2 , wherein the traveling path deciding unit calculates the cost weighted to the unable-to-move risk and the remote control risk on the basis of operation management information of the moving object managed by the moving object movement system, and decides the movement path on the basis of the calculated cost.

4. The moving object movement system according to claim 3 , wherein the traveling path deciding unit calculates the cost on the basis of the operation management information indicating a relation between the number of the moving objects performing the remote controlled movement and the number of the moving objects which are unable to move, and decides the movement path on the basis of the calculated cost.

5. The moving object movement system according to claim 3 , wherein the traveling path deciding unit calculates the cost on the basis of the operation management information indicating a relation between the number of persons who move the moving object in accordance with the remote controlled movement and the number of persons who operate the moving object which is unable to move in a field, and decides the movement path on the basis of the calculated cost.

6. The moving object movement system according to claim 3 , wherein the traveling path deciding unit calculates the cost on the basis of the operation management information indicating a relation between the number of the moving objects performing the remote controlled movement and the number of the moving objects which are unable to move and a relation between the number of persons who move the moving object in accordance with the remote controlled movement and the number of persons who operate the moving object which is unable to move in a field, and decides the movement path on the basis of the calculated cost.

7. The moving object movement system according to claim 1 , wherein the traveling path deciding unit calculates the movement path on the basis of the calculated unable-to-move risk and either necessary time information indicating a time necessary for movement in the movement path or necessary distance information indicating a distance necessary for movement in the movement path.

8. The moving object movement system according to claim 1 , wherein the traveling path deciding unit uses an autonomous movement release probability indicating a probability that the autonomous movement is released as the autonomous movement difficulty level information.

9. The moving object movement system according to claim 1 , wherein the traveling path deciding unit uses a remote controlled movement release probability indicating a probability that the remote controlled movement is released as the communication quality information.

10. A movement path selection method performed in a moving object movement system including a moving object that moves in accordance with any one method of autonomous movement or remote controlled movement and a control server that is connected to the moving object via wireless communication, the movement path selection method comprising:
calculating an unable-to-move risk indicating a possibility that movement is unable to be performed in accordance with any one method of the autonomous movement or the remote controlled movement on the basis of map information including movement paths of the moving object, autonomous movement difficulty level information indicating a difficulty level of the autonomous movement by the moving object, and communication quality information indicating a communication quality necessary for the moving object to perform the remote controlled movement; and
deciding a movement path in which the calculated unable-to-move risk is smallest among the movement paths.

Assignees

• Hitachi Ltd

Inventors

• Yunoki Shoji
• Kubo Hiroyuki
• Endo Hideki

Classifications

• H04L67/125

  involving control of end-device applications over a network · CPC title

• G05D1/0282

  generated in a local control room · CPC title

• G05D1/0022

  characterised by the communication link (data switching networks in general H04L12/00) · CPC title

• G05D1/0061

  for transition from automatic pilot to manual pilot and vice versa · CPC title

• G05D2201/0213

  Physics · mapped topic