CN110053941B - Belt conveyor carrier roller abnormal state monitoring system and method based on speed detection - Google Patents
Belt conveyor carrier roller abnormal state monitoring system and method based on speed detection Download PDFInfo
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- CN110053941B CN110053941B CN201910447619.XA CN201910447619A CN110053941B CN 110053941 B CN110053941 B CN 110053941B CN 201910447619 A CN201910447619 A CN 201910447619A CN 110053941 B CN110053941 B CN 110053941B
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- speed
- carrier roller
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- belt conveyor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
- B65G2203/0291—Speed of the load carrier
Abstract
The invention discloses a belt conveyor roller abnormal state monitoring system and method based on speed detection, wherein the system utilizes a video acquisition device, marks are made on a roller of a belt conveyor, videos generated when the roller rotates are acquired, acquired images are processed, the marks are identified, the motion trail of a mark point is calculated in real time, the rotating linear speed of the roller is calculated by calculating the number of times of the marks in unit time, whether the roller is in an abnormal state is determined according to the ratio of the rotating linear speed of the roller to the conveying speed of a conveying belt, and the rotating linear speed of the roller, the real-time running data of the conveying speed and whether the roller is in the abnormal state are displayed. The invention applies the computer image recognition technology to realize the monitoring of the running state of the carrier roller of the belt conveyor based on abnormal speed detection, and has important significance for ensuring the safe running of the belt conveyor. The invention has good interactivity and operability, strong practicability and high popularization and application value.
Description
Technical Field
The invention relates to a belt conveyor carrier roller abnormal state monitoring system and method based on speed detection, and belongs to the technical field of mechanical equipment detection.
Background
The belt conveyor is a common transportation device for industrial and mining enterprises. However, if the carrier roller slides or locks in the continuous operation of high speed, large transportation volume and long transportation distance, serious accidents such as the breakage of the conveyor belt and the like are easily caused, and great loss is caused to enterprises. Therefore, the detection of the operating state of the idler is very important.
However, the existing monitoring methods and devices for monitoring the abnormal state of the carrier roller of the belt conveyor have the problems of complex structure, inconvenient operation, high false alarm rate and the like; if adopt artifical the detection, there is with high costs, wastes time and energy, inefficiency and security subalternation problem. Therefore, how to provide a detection method and a device which have simple structure and convenient operation and are applicable to various carrier rollers becomes a technical problem to be solved urgently by the technical personnel in the field.
The development of computer technology makes real-time video analysis possible. By using the computer image technology, the running state of the carrier roller of the belt conveyor can be analyzed and judged on line, the abnormal state of the carrier roller can be found quickly, the occurrence of accidents of the belt conveyor is reduced or avoided, and the continuous and reliable running of the belt conveyor is ensured.
Disclosure of Invention
The invention aims to overcome the defects of the existing carrier roller detection technology, and realizes the online detection of the carrier roller speed by using a computer image processing and identifying technology, thereby reducing the occurrence of conveyor belt accidents caused by the failure of the carrier roller of a conveyor and improving the reliability of a belt conveyor. The technical means adopted by the invention are as follows:
a belt conveyor idler abnormal condition monitoring system based on speed detection includes:
the video acquisition device is used for acquiring a roller rotation video of the belt conveyor;
the video acquisition device guide rail is used for loading the video acquisition device to a specified position and acquiring a carrier roller rotating video of the belt conveyor at the specified position;
the conveying belt speed detection device is used for measuring the conveying speed of the conveying belt of the belt conveyor;
and, the abnormal state monitoring cloud platform of bearing roller, it includes:
the field signal acquisition industrial personal computer is used for analyzing the carrier roller rotating video of the belt conveyor obtained by the video acquisition device, calculating the carrier roller rotating linear speed and transmitting the carrier roller rotating linear speed and the conveying speed of the conveying belt to the cloud server;
the cloud server is used for receiving and storing the data of the carrier roller rotating linear speed and the conveyor belt operating speed transmitted by the field signal acquisition industrial personal computer, determining whether the carrier roller is in an abnormal state according to the ratio of the carrier roller rotating linear speed to the conveyor belt conveying speed, and displaying the data at the front end;
and the data display terminal is used for accessing the cloud server through a webpage or an APP and displaying the rotation linear speed of the carrier roller, the real-time operation data of the operation speed of the conveying belt and whether the carrier roller is in an abnormal state.
The guide rail of the video acquisition device is arranged on the frame outside the belt conveyor and is positioned on the side surface of the carrier roller.
The video acquisition device is connected with the field signal acquisition industrial personal computer through a wired or wireless network.
The conveyer belt speed detection device adopts a photoelectric sensor speed measurement mode and is arranged above or on the side surface of a conveyer belt of the belt conveyer;
the conveying speed of the conveying belt measured by the conveying belt speed detection device is transmitted to the field signal acquisition industrial personal computer in a wired or wireless mode.
The data display terminal is a PC or a mobile terminal.
The invention also discloses a method for monitoring the abnormal state of the carrier roller of the belt conveyor based on speed detection by using the system, which comprises the following steps:
s1, numbering the carrier rollers of the belt conveyor, and marking the carrier rollers;
s2, enabling the video acquisition device to move on the video acquisition device guide rail, acquiring the rotating video of each carrier roller, transmitting the acquired real-time video to a field signal acquisition industrial personal computer, processing and identifying the acquired image on the field signal acquisition industrial personal computer, calculating the motion track of a mark point, and calculating the rotating linear speed of the numbered carrier roller according to the times of the occurrence of marks in unit time;
the conveyor belt speed detection device measures the conveying speed of the conveyor belt and transmits data to the field signal acquisition industrial personal computer;
s3, the field signal acquisition industrial personal computer transmits the carrier roller rotating linear speed and the conveying speed of the conveying belt to the cloud server according to the serial number;
s4, the cloud server determines whether the carrier roller is in an abnormal state according to the ratio of the linear speed of the carrier roller to the conveying speed of the conveying belt, and the specific judgment basis is related to the type of the carrier roller;
and S5, the data display terminal displays the rotation linear speed of the carrier roller, real-time running data of the running speed of the conveying belt and whether the carrier roller is in an abnormal state.
In step S1, the idlers of the belt conveyor are numbered by position or other means.
The types of abnormal states include slight slipping of the idler, severe slipping of the idler, and a jammed state of the idler.
The invention has the beneficial effects that: the invention adopts the computer image recognition technology, realizes the real-time detection of the rotating speed of the carrier roller, reduces the occurrence of the faults of the conveying belt caused by the failure of the carrier roller and improves the reliability of the belt conveyor. The automatic detection device is simple in structure, high in automation degree, suitable for detection of various carrier rollers and good in application prospect.
Based on the reason, the invention can be widely popularized in the fields of mechanical equipment detection and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a belt conveyor idler abnormal state monitoring system based on speed detection according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a video acquisition device acquiring idler rotation video of a belt conveyor in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, a belt conveyor roller abnormal state monitoring system based on speed detection comprises a video acquisition device 3, a video acquisition device guide rail 2, a conveyor belt speed detection device and a roller abnormal state monitoring cloud platform. The belt conveyor comprises a carrier roller 5 and a conveyor belt 1, the carrier roller 5 is numbered according to the position, and the side surface of the carrier roller 5 is marked with a mark 4; the video acquisition device 3 adopts a high-definition camera, is arranged on the guide rail 2 of the video acquisition device, and transmits a shot carrier roller 5 real-time rotating video to a field signal acquisition industrial personal computer in a wireless mode; the video acquisition device guide rail 2 is arranged on a rack on the outer side of the belt conveyor, is driven by a stepping motor, loads the video acquisition device 3 to a specified position, and acquires a rotating video of a carrier roller 5 at the specified position; the conveying belt speed detection device adopts a photoelectric sensor to measure the conveying speed of the conveying belt 1 and transmits data to the field signal acquisition industrial personal computer;
the cloud platform for monitoring the abnormal state of the carrier roller comprises a field signal acquisition industrial personal computer, a cloud server and a data display terminal. The field signal acquisition industrial personal computer adopts a high-performance porphyrization industrial personal computer to perform image analysis on the rotating video of the carrier roller 5, calculate the rotating linear speed of the carrier roller 5 and transmit the rotating linear speed of the carrier roller 5 and the conveying speed of the conveying belt 1 to the cloud server; the cloud server adopts an Ali cloud server, receives data of the rotating linear speed of the carrier roller 5 and the running speed of the conveying belt 1, stores the data, and displays the data at the front end; the mobile terminal adopts Hua as a mobile phone, accesses the cloud server through the APP, and obtains the rotation linear speed of the carrier roller 5, the real-time operation data of the operation speed of the conveying belt 1 and the information whether the carrier roller 5 is in an abnormal state.
The field signal acquisition industrial personal computer is provided with video analysis software, carries out image recognition on a video transmitted by the video acquisition device 3 and rotating the carrier roller 5, calculates the motion track of the mark 4, and calculates the rotating linear speed of the carrier roller 5 with the number according to the occurrence frequency of the mark 4 in unit time.
The cloud server calculates the ratio of the rotating linear speed of the carrier roller 5 to the conveying speed of the conveying belt 1 at the rear end, and determines whether the carrier roller 5 is in an abnormal state. Taking a coal-conveying iron carrier roller as an example, if the ratio is greater than 0.75, the carrier roller 5 is in a normal working state, if the ratio is between 0.75 and 0.35, the abnormal state is that the carrier roller 5 slightly slips, if the ratio is between 0.35 and 0.1, the abnormal state is that the carrier roller 5 severely slips, and if the ratio is lower than 0.1, the abnormal state is that the carrier roller 5 is in a jammed state.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A belt conveyor idler abnormal condition monitoring system based on speed detection, characterized by comprising:
the video acquisition device is used for acquiring a roller rotation video of the belt conveyor;
the video acquisition device guide rail is used for loading the video acquisition device to a specified position;
the conveying belt speed detection device is used for measuring the conveying speed of the conveying belt of the belt conveyor;
and, the abnormal state monitoring cloud platform of bearing roller, it includes:
the field signal acquisition industrial personal computer is used for analyzing the carrier roller rotating video of the belt conveyor obtained by the video acquisition device, calculating the carrier roller rotating linear speed and transmitting the carrier roller rotating linear speed and the conveying speed of the conveying belt to the cloud server;
the cloud server is used for receiving and storing the data of the carrier roller rotating linear speed and the conveyor belt operating speed transmitted by the field signal acquisition industrial personal computer, determining whether the carrier roller is in an abnormal state according to the ratio of the carrier roller rotating linear speed to the conveyor belt conveying speed, and displaying the data at the front end;
and the data display terminal is used for accessing the cloud server through a webpage or an APP and displaying the rotation linear speed of the carrier roller, the real-time operation data of the operation speed of the conveying belt and whether the carrier roller is in an abnormal state.
2. The system for monitoring the abnormal state of the idler roller of the belt conveyor based on the speed detection as claimed in claim 1, wherein the guide rail of the video capture device is installed on the frame outside the belt conveyor and at the side of the idler roller.
3. The system for monitoring the abnormal state of the carrier roller of the belt conveyor based on the speed detection as claimed in claim 1, wherein the video acquisition device is connected with the field signal acquisition industrial personal computer through a wired or wireless network.
4. The system for monitoring the abnormal state of the carrier roller of the belt conveyor based on the speed detection as claimed in claim 1, wherein the speed detection device of the conveyor belt adopts a photoelectric sensor speed measurement mode and is arranged above or at the side of the conveyor belt of the belt conveyor;
the conveying speed of the conveying belt measured by the conveying belt speed detection device is transmitted to the field signal acquisition industrial personal computer in a wired or wireless mode.
5. The system for monitoring the abnormal state of a belt conveyor idler roller based on speed detection as claimed in claim 1, wherein the data display terminal is a PC or a mobile terminal.
6. A method for monitoring abnormal conditions of idler rollers of a belt conveyor based on speed detection by using the system of any one of claims 1 to 5, characterized by the steps of:
s1, numbering the carrier rollers of the belt conveyor, and marking the carrier rollers;
s2, enabling the video acquisition device to move on the video acquisition device guide rail, acquiring the rotating video of each carrier roller, transmitting the acquired real-time video to a field signal acquisition industrial personal computer, processing the acquired image on the field signal acquisition industrial personal computer, identifying the mark made, calculating the motion track of the mark, and calculating the rotating linear speed of the numbered carrier roller according to the times of the mark made in unit time;
the conveyor belt speed detection device measures the conveying speed of the conveyor belt and transmits data to the field signal acquisition industrial personal computer;
s3, the field signal acquisition industrial personal computer transmits the carrier roller rotating linear speed and the conveying speed of the conveying belt to the cloud server according to the serial number;
s4, the cloud server determines whether the carrier roller is in an abnormal state according to the ratio of the carrier roller rotating linear speed to the conveying speed of the conveying belt;
and S5, the data display terminal displays the rotation linear speed of the carrier roller, real-time running data of the running speed of the conveying belt and whether the carrier roller is in an abnormal state.
7. The method of claim 6, wherein in step S1, the idlers of the belt conveyor are numbered by position.
8. A method of monitoring as claimed in claim 6, wherein the categories of abnormal conditions include slight slipping of the idlers, severe slipping of the idlers and the idlers being in a jammed condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910447619.XA CN110053941B (en) | 2019-05-27 | 2019-05-27 | Belt conveyor carrier roller abnormal state monitoring system and method based on speed detection |
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| CN201910447619.XA CN110053941B (en) | 2019-05-27 | 2019-05-27 | Belt conveyor carrier roller abnormal state monitoring system and method based on speed detection |
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| CN110053941A CN110053941A (en) | 2019-07-26 |
| CN110053941B true CN110053941B (en) | 2021-09-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110451204A (en) * | 2019-08-21 | 2019-11-15 | 江苏盈丰电子科技有限公司 | One kind being used for conveyer belt viewed in real time system |
| CN111056258B (en) * | 2019-11-20 | 2021-08-10 | 秒针信息技术有限公司 | Method and device for intelligently adjusting conveyor belt |
| CN110921243A (en) * | 2019-12-31 | 2020-03-27 | 中冶北方（大连）工程技术有限公司 | Device and method for detecting running speed and slippage of adhesive tape |
| CN114604598B (en) * | 2022-03-28 | 2023-04-07 | 北京科技大学 | Belt conveyor rewinding and belt breakage detection device and method |
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| CN104909136A (en) * | 2014-03-12 | 2015-09-16 | 无锡百科知识产权有限公司 | Comprehensive detection method of belt conveying line |
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| CN1630610A (en) * | 2002-02-11 | 2005-06-22 | 西门子公司 | Belt conveyor |
| CN2851193Y (en) * | 2005-11-16 | 2006-12-27 | 苏为业 | Movable falling anti-collision protective device for high-obliquity adhesive-tape machine |
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