Road speed limit mark identification device

A technology for identifying devices and speed limit signs, which is applied in traffic control systems, instruments, and traffic control systems of road vehicles. The problem of low standardization of traffic signs, etc., achieves the effect of high accuracy

Inactive Publication Date: 2016-11-23
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of camera technology itself, the limitation of algorithm development ability and the low level of standardization of road traffic signs, the correct recognition rate of speed limit signs needs to be improved
[0004] Especially on high-spe

Method used

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[0032] The present invention provides a road speed limit sign recognition device. The road speed limit sign recognition device includes:

[0033] A GPS module, the GPS module includes a GPS positioning unit and a storage unit, the GPS positioning unit is used to determine the current position of the vehicle, and the storage unit stores information about the road;

[0034] A camera module, which is used to collect speed limit signs on the vehicle's road;

[0035] The processing module is used for judging and screening the speed limit identification information provided by the camera module and the current vehicle travel road information provided by the GPS module to determine the effective speed limit of the current vehicle.

[0036] Specifically, the road information includes road type, lane, speed limit, fork road, and road at an intersection. The road speed limit sign recognition device further includes a prompting module, which is used to process the current effective speed limit v...

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Abstract

The invention provides a road speed limit sign recognition device, which belongs to the field of automotive electronics technology related to vehicle safety driving, and includes: a GPS module, the GPS module includes a GPS positioning unit and a storage unit, and the GPS positioning unit is used to determine The current position of the vehicle, the storage unit stores information about the road; the camera module is used to collect the speed limit signs on the road the vehicle travels; the processing module is used to combine the speed limit sign information provided by the camera module with the The information of the current vehicle traveling road provided by the above-mentioned GPS module is judged and screened, and the effective speed limit of the current vehicle is determined. The invention provides a road speed limit sign identification device, which can identify ramp speed limit signs with a high accuracy rate, and effectively avoid misidentifying the ramp speed limit sign as a main road speed limit sign.

Description

technical field [0001] The invention relates to the technical field of automotive electronics related to vehicle safety driving, in particular to a road speed limit sign recognition device. Background technique [0002] With the rapid development of the country's economy, more and more roads have been built, and clear road signs are an indispensable companion for people to travel. Road signs refer to road signs set before road divergence points or intersections to prompt various driving direction information. [0003] As major automobile companies in Europe, America and Japan successively develop and launch active safety systems such as automatic emergency braking, adaptive cruise control, lane keeping assist, and road traffic sign recognition, the penetration rate of active safety functions in the market is increasing. Among them, the importance of road traffic sign recognition function as the cornerstone of intelligent speed limit and future automatic driving is self-evid...

Claims

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Application Information

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IPC IPC(8): G08G1/0967
CPCG08G1/0967
Inventor 覃力李博
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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