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Traffic information creating method, traffic information creating device, display, navigation system, and electronic control unit

A technology of traffic information and vehicle information, applied in the field of electronic control units, can solve problems such as difficulty in generating high-precision congestion information

Inactive Publication Date: 2009-07-22
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the probe car information system described in Patent Document 1 does not exclude the traffic light waiting time from the passing time at a predetermined point such as an intersection, so it is difficult to generate high-precision congestion due to the influence of the traffic light stop on the average speed. questions like information

Method used

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  • Traffic information creating method, traffic information creating device, display, navigation system, and electronic control unit
  • Traffic information creating method, traffic information creating device, display, navigation system, and electronic control unit
  • Traffic information creating method, traffic information creating device, display, navigation system, and electronic control unit

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Embodiment Construction

[0024] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. First, an overview of congestion degree generation will be described.

[0025] figure 1 A flowchart showing the procedure for generating traffic information in this embodiment, figure 2 It is a diagram showing how to generate traffic information step by step. The traffic information generating method of this embodiment is a method of generating information on whether a road is congested and if so, how congested it is, based on vehicle information on a road on which a so-called probe vehicle (hereinafter, simply referred to as a vehicle) travels. The so-called vehicle information refers to information such as vehicle speed, location information, congestion degree, etc. detected from the vehicle or processed.

[0026] Once the vehicle information and the location information of the vehicle are acquired, either the vehicle-mounted device 10 or a server (s...

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Abstract

The invention provides a traffic information creating method creating traffic information on a road where a vehicle (2) is travelling. The method includes: a vehicle speed detection step (S1) for detecting a vehicle speed at a predetermined distance interval or a predetermined time interval by a vehicle speed sensor (11); and a congestion degree detection step (S1-3) for referencing a predetermined speed, a predetermined distance number, and a connection judgment distance number correlated to a congestion degree indicating the degree of congestion so as to detect the congestion degree based on the vehicle speed.

Description

technical field [0001] The present invention relates to a traffic information generating method, a traffic information generating device, a display, a navigation system, and an electronic control system for generating traffic information such as congestion by using a probe car or a server to collect speeds and the like from a plurality of probe cars actually running on a road. unit. Background technique [0002] VICS and probe car information systems that collect vehicle information such as vehicle speed and time to generate traffic information are known. In the probe car information system, traffic information such as traffic congestion is generated by collecting the travel speed and position of the road the vehicle actually travels on (for example, refer to Patent Document 1). In the probe car information system described in Patent Document 1, the average speed and the time-series change of the position are calculated based on vehicle information about the position of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G09B29/00G08G1/13G09B29/10
CPCG09B29/007G08G1/0104G08G1/0112G08G1/0133G08G1/0969G08G1/01G08G1/13G09B29/00
Inventor 井野口利夫财津智之山田信一吉川和孝
Owner TOYOTA JIDOSHA KK
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