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Method and device for nameplate identification of transformer station device

An identification method and substation technology, applied in the field of image recognition, can solve the problems of difficulty in standardization of artificial shooting, blurred nameplate pictures, identification of nameplates, etc., to achieve strong environmental adaptability and anti-interference ability, improve efficiency and quality, and improve efficiency and quality. Effect

Inactive Publication Date: 2018-05-08
SHENZHEN POWER SUPPLY BUREAU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the nameplates of substations are generally located outdoors. Because the equipment has a certain safety distance, it is necessary to take pictures of the nameplates at a certain distance. Since the nameplates are mostly made of metal materials, they are placed in the outdoor environment all the year round and are affected by outdoor dust and steel corrosion. The nameplate pictures are blurred and the strokes are disconnected; and because it is difficult to standardize the manual shooting, the captured nameplate pictures are often accompanied by horizontal deformation, perspective deformation and even the reflection of the nameplate. Therefore, it is difficult to use traditional Optical Character Recognition (Optical Character Recognition, referred to as "OCR") method to directly identify these nameplates

Method used

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  • Method and device for nameplate identification of transformer station device

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Embodiment 1

[0034] An embodiment of the present invention provides a nameplate identification method for substation equipment, which is used to identify the nameplate information of substation equipment, see figure 1 , the method can include:

[0035] Step S11, acquiring the image of the scene to be tested including the nameplate of the substation equipment to be tested.

[0036] In this embodiment, when acquiring the nameplate image of the substation equipment to be detected, due to the uncertainty of the shooting method, the acquired nameplate image not only includes the nameplate to be tested, but may also include the scene where the nameplate is located. Therefore, First obtain the scene image to be tested containing the nameplate of the substation equipment to be tested.

[0037] In step S12, a single-scale Retinex image enhancement algorithm is used to preprocess the image of the scene to be tested with light removal.

[0038] In this embodiment, the image of the nameplate often h...

Embodiment 2

[0055] An embodiment of the present invention provides a nameplate identification device for substation equipment, see figure 2 , the apparatus may include: an acquisition module 100 , a first processing module 200 , a second processing module 300 , and an identification module 400 .

[0056] The acquiring module 100 is configured to acquire the image of the scene to be tested including the nameplate of the substation equipment to be tested.

[0057] In this embodiment, when acquiring the nameplate image of the substation equipment to be detected, due to the uncertainty of the shooting method, the acquired nameplate image not only includes the nameplate to be tested, but may also include the scene where the nameplate is located. Therefore, First obtain the scene image to be tested containing the nameplate of the substation equipment to be tested.

[0058] The first processing module 200 is configured to use a preset edge extraction algorithm to perform edge extraction proces...

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Abstract

The present invention discloses a method and a device for nameplate identification of a transformer station device. The method comprises the steps of: obtaining a scene image to be measured comprisinga nameplate of a transformer station device to be measured; employing a preset edge extraction algorithm to perform edge extraction processing of the scene image to be measured, obtaining a corresponding contour image to be measured, and positioning a nameplate contour area in the contour image to be measured; performing cutting and correction processing of the nameplate contour area to be measured, and obtaining a nameplate area image to be measured; and employing a preset convolutional neural network to perform identification of characters in the nameplate area image to be measured. The nameplate identification method provided by the invention can identify nameplate information of different electric devices in a non-contact condition so as to greatly improve the inspection tour efficiency and quality and has high environment adaptability and anti-interference capability for identification of the nameplate information.

Description

technical field [0001] The invention relates to the technical field of image recognition, in particular to a nameplate recognition method and device for a substation. Background technique [0002] At present, the nameplates of substations are generally located outdoors. Because the equipment has a certain safety distance, it is necessary to take pictures of the nameplates at a certain distance. Since the nameplates are mostly made of metal materials, they are placed in the outdoor environment all the year round and are affected by outdoor dust and steel corrosion. The nameplate pictures are blurred and the strokes are disconnected; and because it is difficult to standardize the manual shooting, the captured nameplate pictures are often accompanied by horizontal deformation, perspective deformation and even the reflection of the nameplate. Therefore, it is difficult to use traditional Optical Character Recognition (Optical Character Recognition, referred to as "OCR") method t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/34G06K9/32G06K9/62
CPCG06V20/63G06V30/153G06F18/214
Inventor 宁柏锋黄安子吕志宁庞宁余里程冯薇玺孙蓉蓉易文峰杨育
Owner SHENZHEN POWER SUPPLY BUREAU
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