A track detection positioning system based on combination of an NFC technology and machine vision

Abstract

The invention relates to a track detection positioning system based on combination of an NFC technology and machine vision. The system comprises an NFC positioning subsystem which comprises a track beacon module and an NFC sensor acquisition module which are connected with each other; The machine vision positioning subsystem comprises an image acquisition module and an image processing module; theimage processing module is respectively connected with the image acquisition module and the NFC sensor acquisition module; The positioning correction subsystem comprises an error correction module and a data processing module, and the data processing module is respectively connected with the image processing module and the error correction module; The data transmission subsystem comprises a communication module connected with the data processing module, and the communication module communicates with a remote data management center; And the remote data management center communicates with the communication module through a communication network. Compared with the prior art, the method has the advantages of improving the reading processing efficiency, saving the operation and management costand the like.

Description

technical field [0001] The invention relates to the technical field of track detection and positioning, in particular to a track detection and positioning system based on the combination of NFC technology and machine vision. Background technique [0002] Railway line equipment is the basic equipment of the railway transportation industry. Because it is exposed to nature all the year round, it is subjected to wind, rain, freeze-thaw and train loads. The geometric dimensions of the track are constantly changing, and the roadbed and ballast bed are constantly deformed. Continuous wear and tear leads to constant changes in the technical status of line equipment. Therefore, we need to grasp the changing rules of line equipment, detect line status in time, and strengthen line inspection management to become an important basic work to ensure line quality and transportation safety. [0003] The track inspection vehicle is an important tool for inspecting track lines, evaluating trac...

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Problems solved by technology

[0004] However, within the scope of the prior art, the above-mentioned technical methods all have their limitations: GPS technology cannot locate the track inspection vehicle in the area of ​​some specific geographical factors or climatic factors (such as underground, tunnel or high altitude area, etc.); In the process of actual track line detection and fault judgment using vehicle-mounted train positioning technology, since the actual speed and acceleration of the track inspection vehicle are relatively small, the displacement data of the track inspection vehicle measured by the vehicle-mounted train positioning technology will produce Large errors make it impossible to obtain accurate positioning information; beacon positioning technology has disadvantages such as high production and maintenance costs and limited success rate of information collection, and it is often impossible to continuously deploy and install on the entire track, which leads to track inspection vehicles. It is impossible to obtain the absolute position information when the non-beacon positioning position is used, and it is impossible to realize the precise positioning of the track inspection vehicle

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