CN102991998B - Conveyor belt anomaly detection system - Google Patents
Conveyor belt anomaly detection system Download PDFInfo
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- CN102991998B CN102991998B CN201210375639.9A CN201210375639A CN102991998B CN 102991998 B CN102991998 B CN 102991998B CN 201210375639 A CN201210375639 A CN 201210375639A CN 102991998 B CN102991998 B CN 102991998B
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Abstract
The invention provides a conveyor belt anomaly detection system which comprises a camera, a first image processing unit, a second image processing unit and an alarm device, wherein the camera is arranged above a conveyor belt, and is used for shooting a section of the conveyor belt; the first image processing unit carries out equalization on an image shot by the camera so as to obtain an equalized image; the second image processing unit carries out graphical numeric comparison on an image currently shot by the camera and the equalized image obtained from the first image processing unit; and the alarm device is connected with the second image processing unit, and when a graphical numeric comparison result of the second image processing unit is greater than a threshold, the second image processing unit indicates the alarm device to raise the alarm. According to the invention, a novel image comparison technology is applied to the field of conveyor belt anomaly detection. Once a situation that a block image of a conveyor belt has a large deviation is found, the conveyor belt anomaly detection system can provide early warning timely.
Description
Technical field
The present invention relates to belt conveyor field, particularly relate to a kind of belt conveyor abnormality detection system.
Background technology
The belt conveyor with traction piece generally comprises traction piece, load-carrying element, actuating device, tightening device, change course device and supporting member etc.Traction piece, in order to transmitting tractive power, can adopt belt conveyor, tow chain or steel rope; Load-carrying element, in order to bear material, has hopper, bracket or suspender etc.; Actuating device, is generally made up of electrical motor, retarder and drg (stopper) etc. with power to conveyer; Tightening device generally has screw and weight hammer type two kinds, and traction piece can be made to keep certain tension force and sag, to ensure belt conveyor normal operation; Supporting member, in order to support traction piece or load-carrying element, can adopt carrying roller, roller etc.
Belt conveyor there will be the unusual condition such as bulge, wearing and tearing unavoidably after Long-Time Service.This kind of error state is once outburst will cause great destruction to whole transport system for belt conveyor ruptures.Particularly, for the belt conveyor transport systems of some longer distance, the fault of belt conveyor fracture and so on often causes great the property even damage of personnel.
Therefore, industry needs a kind of actv. solution badly to overcome above-mentioned technical matters of the prior art.
Summary of the invention
The present inventor combines research and development experience for many years, have developed a kind of belt conveyor abnormality detection system.
Particularly, the invention provides a kind of belt conveyor abnormality detection system, comprising:
Camera, is arranged at the top of belt conveyor, and described camera takes a section of described belt conveyor;
First graphics processing unit, averages the image taken by described camera, to obtain an equalization image;
Second graphics processing unit, by described camera current shooting to image carry out graphical numeric ratio comparatively with from the equalization image of described first graphics processing unit; And
Warning device, is connected with described second graphics processing unit,
Wherein, when described second graphics processing unit graphical numeric ratio compared with result be greater than a threshold value time, described second graphics processing unit indicates described warning device to give the alarm.
According to a preferred embodiment of the present invention, in above-mentioned belt conveyor abnormality detection system, described graphical numeric ratio comparatively comprises: by described camera current shooting to image and described equalization image same group of intrinsic image combine, to generate corresponding intrinsic image set of weights; And by obtained intrinsic image set of weights relative to described camera current shooting to image and described equalization image compare, to produce corresponding comparative figure.
According to a preferred embodiment of the present invention, in above-mentioned belt conveyor abnormality detection system, described combination comprise with described intrinsic image to described camera current shooting to image and described equalization image carry out convolution.
According to a preferred embodiment of the present invention, in above-mentioned belt conveyor abnormality detection system, before described graphical numeric ratio is comparatively, described second graphics processing unit first by described camera current shooting to image and described equalization image carry out normalisation.
According to a preferred embodiment of the present invention, described in above-mentioned belt conveyor abnormality detection system normalisation be current shooting to image and described equalization graphics standard to turn to average be zero-sum variance is one.
The image comparison techniques of novelty is applied in belt conveyor abnormality detection field by the present invention.Once find the tile images generation relatively large deviation of belt conveyor, then can provide early warning in time.Therefore, the present invention can avoid the great property that causes of problem due to belt conveyor fracture and so on and personal damage.
Should be appreciated that more than the present invention generality describe and the following detailed description be all exemplary and explanat, and be intended to for as claimed in claim the invention provides further explanation.
Accompanying drawing explanation
Accompanying drawing is mainly used for providing further to be understood the present invention.Accompanying drawing shows embodiments of the invention, and plays the effect explaining the principle of the invention together with this specification sheets.In accompanying drawing:
Fig. 1 schematically shows the basic structure of belt conveyor abnormality detection system of the present invention.
Detailed description of the invention
Multiple embodiment of the present invention is discussed in detail below in conjunction with accompanying drawing.
Fig. 1 schematically shows the basic structure of belt conveyor abnormality detection system of the present invention.As shown in the figure, belt conveyor abnormality detection system 100 of the present invention mainly comprises: camera 101, first graphics processing unit 102, second graphics processing unit 103 and warning device 104.
Camera 101 is arranged at the top of belt conveyor, and described camera 101 takes a section of described belt conveyor.According to design of the present invention, for a belt conveyor, only need the abnormality detection that can ensure whole piece belt conveyor by the particular section that a camera 101 takes belt conveyor.Certainly, in order to ensure the precision detected, be preferably set in belt conveyor transported material through after a while laggard enter the stable delivery period time start the shooting work of camera 101.
First graphics processing unit 102 receives the photographic images from camera 101, and averages the image taken by described camera 101, to obtain an equalization image.Be appreciated that this equalization image constantly updates, to get rid of the unfavorable image that the excessive or material change of time difference etc. causes processing result image.
Second graphics processing unit 103 by described camera 101 current shooting to image carry out graphical numeric ratio comparatively with from the equalization image of described first graphics processing unit 102.
Warning device 104 is connected with described second graphics processing unit 103, wherein when described second graphics processing unit 103 graphical numeric ratio compared with result be greater than a threshold value time, described second graphics processing unit 103 indicates described warning device 104 to give the alarm.
According to a preferred embodiment of the present invention, in above-mentioned belt conveyor abnormality detection system 100, described graphical numeric ratio comparatively comprises: by described camera 101 current shooting to image and described equalization image same group of intrinsic image combine, to generate corresponding intrinsic image set of weights; And by obtained intrinsic image set of weights relative to described camera 101 current shooting to image and described equalization image compare, to produce corresponding comparative figure.
More specifically, described combination step can comprise with described intrinsic image to described camera 101 current shooting to image and described equalization image carry out convolution.
In addition, in a preferred embodiment of the invention, before described graphical numeric ratio is comparatively, described second graphics processing unit 103 first by described camera 101 current shooting to image and described equalization image carry out normalisation.This normalisation can be respectively by described camera current shooting to image and described equalization graphics standard to turn to average be zero-sum variance is one.
The image comparison techniques of novelty is applied in belt conveyor abnormality detection field by the present invention.Once find the tile images generation relatively large deviation of belt conveyor, then can provide early warning in time.Therefore, the present invention can avoid the great property that causes of problem due to belt conveyor fracture and so on and personal damage.
Above-described embodiment is available to those of ordinary skill in the art to realize or uses of the present invention; those of ordinary skill in the art can be without departing from the present invention in the case of the inventive idea; various modifications or change are made to above-described embodiment; thus protection scope of the present invention not limit by above-described embodiment, and should be the maximum range meeting the inventive features that claims are mentioned.
Claims (3)
1. a belt conveyor abnormality detection system, comprising:
Camera, is arranged at the top of belt conveyor, and described camera takes a section of described belt conveyor;
First graphics processing unit, averages the image taken by described camera, to obtain an equalization image;
Second graphics processing unit, by described camera current shooting to image carry out graphical numeric ratio comparatively with from the equalization image of described first graphics processing unit, described graphical numeric ratio comparatively comprises: by described camera current shooting to image and described equalization image same group of intrinsic image combine, to generate corresponding intrinsic image set of weights; And by obtained intrinsic image set of weights relative to described camera current shooting to image and described equalization image compare, to produce corresponding comparative figure, wherein, described combination comprise with described intrinsic image to described camera current shooting to image and described equalization image carry out convolution; And
Warning device, is connected with described second graphics processing unit,
Wherein, when described second graphics processing unit graphical numeric ratio compared with result be greater than a threshold value time, described second graphics processing unit indicates described warning device to give the alarm.
2. belt conveyor abnormality detection system as claimed in claim 1, is characterized in that, before described graphical numeric ratio comparatively, described second graphics processing unit first by described camera current shooting to image and described equalization image carry out normalisation.
3. belt conveyor abnormality detection system as claimed in claim 2, it is characterized in that described normalisation be current shooting to image and described equalization graphics standard to turn to average be zero-sum variance is one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375639.9A CN102991998B (en) | 2012-10-04 | 2012-10-04 | Conveyor belt anomaly detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210375639.9A CN102991998B (en) | 2012-10-04 | 2012-10-04 | Conveyor belt anomaly detection system |
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| Publication Number | Publication Date |
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| CN102991998A CN102991998A (en) | 2013-03-27 |
| CN102991998B true CN102991998B (en) | 2015-02-25 |
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| CN201210375639.9A Expired - Fee Related CN102991998B (en) | 2012-10-04 | 2012-10-04 | Conveyor belt anomaly detection system |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171875B (en) * | 2013-03-29 | 2015-01-21 | 太原理工大学 | Mine-use rubber belt longitudinal tearing intelligent infrared detection sensor and use method thereof |
| CN103241521B (en) * | 2013-05-16 | 2015-02-18 | 济南伊斯达自控工程有限公司 | Belt operation control system and control method thereof |
| CN104743334B (en) * | 2013-12-27 | 2017-09-15 | 楚天科技股份有限公司 | The protection device and discharging system of freeze dryer automatic feed/discharge |
| CN104714417B (en) * | 2014-12-30 | 2018-02-27 | 华南理工大学 | One kind has the big acceleration and deceleration conveyer belt vibration PD control system of unknown disturbance |
| CN110490995B (en) * | 2019-08-26 | 2021-08-17 | 精英数智科技股份有限公司 | Method, system, equipment and storage medium for monitoring abnormal running state of belt |
| CN110921241B (en) * | 2019-11-18 | 2021-08-17 | 太仓北新建材有限公司 | Method and system for preventing gypsum board line belt from being scratched |
| CN110953984B (en) * | 2019-11-22 | 2021-02-23 | 浙江蓝卓工业互联网信息技术有限公司 | Method and device for judging deviation degree of conveyor belt |
| CN111517092B (en) * | 2020-06-03 | 2021-06-11 | 太原理工大学 | Transmission belt tearing detection method |
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| DE19902759A1 (en) * | 1998-02-13 | 1999-08-19 | Phoenix Ag | Continuous monitoring device for conveyor belt coupling joint |
| US6831566B1 (en) * | 1999-10-22 | 2004-12-14 | Phoenix Ag | Device for monitoring a conveyor |
| CN101602439A (en) * | 2009-07-01 | 2009-12-16 | 北京市煤炭矿用机电设备技术开发公司 | Conveyor belt breakage prewarning method and system |
| CN101738224A (en) * | 2008-11-04 | 2010-06-16 | 任安祥 | Working condition detecting method, device and system |
| CN102673977A (en) * | 2012-04-17 | 2012-09-19 | 安徽理工大学 | Device and method for real-time detection of tearing of coal conveying belt |
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Patent Citations (6)
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| DE4240094A1 (en) * | 1992-11-28 | 1994-06-01 | Abb Patent Gmbh | CCD camera system for control of flow on belt conveyor - evaluates shape and vol. of moving mass by processing of image of bright band projected onto surface |
| DE19902759A1 (en) * | 1998-02-13 | 1999-08-19 | Phoenix Ag | Continuous monitoring device for conveyor belt coupling joint |
| US6831566B1 (en) * | 1999-10-22 | 2004-12-14 | Phoenix Ag | Device for monitoring a conveyor |
| CN101738224A (en) * | 2008-11-04 | 2010-06-16 | 任安祥 | Working condition detecting method, device and system |
| CN101602439A (en) * | 2009-07-01 | 2009-12-16 | 北京市煤炭矿用机电设备技术开发公司 | Conveyor belt breakage prewarning method and system |
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| CN102991998A (en) | 2013-03-27 |
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