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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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  • Abstract
  • Description
  • Claims
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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-speed roads, because the camera itself cannot recognize the Chinese characters of the ramp, and cannot accurately determine whether the vehicle will enter the ramp, the speed limit signs on the ramp and the speed limit signs on the main lane cannot be well distinguished

Method used

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Embodiment Construction

[0032] The present invention provides a road speed limit sign identification device, said road speed limit sign identification device comprising:

[0033] 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 road where the vehicle travels;

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

[0036] Specifically, the road information includes road types, lanes, speed limits, side roads, and roads at intersections. The road speed limit sign recognition device also includes a prompting module, which is used to proces...

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Abstract

The invention provides a road speed limit sign identification device, which belongs to the field of automotive electronic technology related to safe driving of vehicles. It includes: 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 location 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 where the vehicle is traveling; the processing module is used to combine the speed limit sign information provided by the camera module with the The current vehicle road information provided by the GPS module is judged and screened to determine the effective speed limit of the current vehicle. The invention provides a road speed limit sign identification device that can identify ramp speed limit signs with high accuracy and effectively avoid misidentification of ramp speed limit signs as main road speed limit signs.

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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