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Self-position sharing system, vehicle, and terminal

A technology for sharing systems and vehicles, applied in the field of vehicles and terminals, can solve problems such as errors and achieve the effect of reducing load

Pending Publication Date: 2020-12-08
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, the own position measured based on the GPS signal received by the GPS receiver contains some degree of error

Method used

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  • Self-position sharing system, vehicle, and terminal
  • Self-position sharing system, vehicle, and terminal
  • Self-position sharing system, vehicle, and terminal

Examples

Experimental program
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Embodiment Construction

[0030] Hereinafter, a self-position sharing system, a vehicle included in the self-position sharing system, and a terminal mounted on the vehicle will be described with reference to the drawings. The vehicles and terminals included in the own location sharing system can communicate with each other. Furthermore, although either the terminal or the vehicle can measure its own position, it is easier for the vehicle to maintain a higher accuracy of measuring its own position than the terminal. Therefore, in this self-position sharing system, the frequency of notifying the terminal of the self-position estimated by the vehicle is lower than that of the terminal when the positioning accuracy of the self-position of the terminal is lowered. The frequency of notifications, thereby reducing the communication load. In addition, in this self-position sharing system, while the terminal notifies the self-position from the vehicle, the terminal reduces the frequency of measuring the self-p...

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Abstract

The invention provides a self-position sharing system capable of sharing accurate self-position measurement results between a vehicle and a terminal mounted on the vehicle and capable of reducing theload of the terminal, and a vehicle and a terminal included in the self-position sharing system. The terminal (3) mounted on a vehicle (2) and capable of communicating with the vehicle has a positioning unit (22) for measuring the position of the terminal itself. The vehicle (2) is provided with: a position estimation unit (41) that estimates the position of the vehicle itself with a higher positioning accuracy than a terminal for a predetermined period; a notification frequency setting unit (42) that determines whether or not the positioning accuracy of the own position measured by the terminal is reduced, sets a notification frequency for notifying the terminal of the estimated own position of the vehicle as a first frequency if the positioning accuracy is not reduced, and sets the notification frequency as a second frequency that is higher than the first frequency if the positioning accuracy is reduced; and a notification unit (43) that notifies the terminal of the estimated position of the vehicle itself at a notification frequency set from among the first and second frequencies.

Description

technical field [0001] The present invention relates to a self-position sharing system capable of sharing a self-position measurement (position measurement) result between a vehicle and a terminal mounted on the vehicle, and a vehicle and a terminal included in such a self-position sharing system. Background technique [0002] In recent years, a GPS (Global Positioning System, Global Positioning System) receiver has been mounted on a mobile terminal to measure the position of its own device (hereinafter referred to as its own position). Furthermore, an application program for navigation using the measured own position can also be used in the mobile terminal. [0003] In a portable terminal, there may be no means other than a GPS receiver as a means for measuring its own position. Furthermore, the self-position measured based on the GPS signal received by the GPS receiver includes a certain degree of error. Therefore, a technique has been proposed in which a mobile terminal...

Claims

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Application Information

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IPC IPC(8): G01S19/09G01S19/10G01S19/48G01S19/31
CPCG01S19/09G01S19/10G01S19/48G01S19/31G01C21/32G01C21/1656G01C21/3602G01C21/3658G01C21/20G01S19/26G01C21/3655G01S19/23G01C21/26G01C21/28
Inventor 伊藤广矩永江明
Owner TOYOTA JIDOSHA KK
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