Equipment maintenance accessibility evaluation method and device based on virtual environment

A virtual environment and virtual maintenance technology, applied in image data processing, 3D modeling, instruments, etc., can solve the problems of relying on manual observation, inability to achieve accurate evaluation, and low evaluation efficiency, and achieve accurate equipment maintenance accessibility. Evaluate the effect

Pending Publication Date: 2020-05-19
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Abstract
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Problems solved by technology

However, at present, the accessibility assessment based on virtual maintenance technology usually builds a model of the virtual maintenance scene, and manually observes wheth

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  • Equipment maintenance accessibility evaluation method and device based on virtual environment
  • Equipment maintenance accessibility evaluation method and device based on virtual environment
  • Equipment maintenance accessibility evaluation method and device based on virtual environment

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Embodiment Construction

[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0055] Such as figure 1 As shown, the steps of the method for assessing the accessibility of equipment maintenance based on the virtual environment in this embodiment include:

[0056] S1. Model construction: Construct a virtual maintenance scene model for simulating the maintenance scene of the locomotive equipment to be repaired, and an arm motion model for simulating the arm motion state of the maintenance personnel during the maintenance process;

[0057] S2. Model feature point extraction: Calculate all the spatial reachable points of the arm end operation point according to the arm motion model, obtain the set of repair space reachable points, and extract the surface feature points of the required repair parts in the virtual repair scene model to obtain th...

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Abstract

The invention discloses an equipment maintenance accessibility evaluation method and device based on a virtual environment. The method comprises the following steps: S1, constructing a virtual maintenance scene model and an arm motion model for locomotive equipment to be maintained; s2, calculating all spatial reachable points of an arm tail end operation point according to the arm motion model toobtain a maintenance personnel arm spatial reachable point set, and extracting surface feature points of a to-be-maintained part in the virtual maintenance model to obtain a model surface feature point set of the maintained part; s3, judging the matching relationship between the arm space reachable point set and the maintenance model surface feature point set, and evaluating the reachability of the part to be maintained according to the judgment result. The device comprises a model construction module, a model feature point extraction module and an accessibility evaluation module. The equipment maintenance accessibility evaluation method based on the virtual environment can realize equipment maintenance accessibility evaluation based on the virtual environment, and is simple in realization operation, low in cost and high in evaluation precision and efficiency.

Description

technical field [0001] The invention relates to the technical field of locomotive equipment maintenance, in particular to a method and device for evaluating the accessibility of rail transit locomotive equipment maintenance. Background technique [0002] Accessibility refers to whether the maintenance parts are within the reach of the maintenance personnel's arm or hand tool after the maintenance station of the maintenance personnel is determined during the maintenance operation. Accessibility of maintenance parts is a prerequisite for maintenance operations. A good accessibility design requires that the maintenance parts must be easily "reachable" during product maintenance. If the accessibility requirements cannot be met, the maintenance parts cannot be repaired. Accessibility can determine the degree of difficulty for maintenance personnel to access the maintenance parts when maintaining the product maintenance parts. Therefore, accessibility assessment has become an impo...

Claims

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Application Information

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IPC IPC(8): G06T17/20G06Q10/06G06Q10/00G06F17/11
CPCG06T17/20G06Q10/0639G06Q10/20G06F17/11
Inventor 周文强汪旭匡芬杜绍华肖江林胡洪华
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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