A detection method and system for conveyor belt damage

Abstract

The present invention relates to the technical field of conveyor belt detection, and specifically discloses a detection method and system for conveyor belt damage, including the following steps: measuring and obtaining the tension value and the rated tension value of the conveyor belt through a tension sensor; calculating to obtain the tension variation rate of the conveyor belt to obtain a conveyor belt tension stability signal; enabling a high-speed camera to take pictures at a fixed shooting interval; counting the number of crack values in each taken picture; calculating to obtain the crack performance value of the conveyor belt to obtain a surface stability signal; calculating to obtain the point deviation difference value of the conveyor belt to obtain a conveyor belt alignment signal; calculating to obtain the maximum deviation angle value of the conveyor belt to obtain a conveyor belt stability signal, which better ensures the stability of the conveyor belt during operation. At the same time, it provides an accurate calculation basis for the stable operation of the conveyor belt, and avoids the situation of breakage or detachment of the conveyor belt during operation.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor belt detection, and particularly to a detection method and system for conveyor belt damage. Background Art

[0002] In order to reduce the impact caused by conveyor belt damage, in the related art, an artificial detection method is adopted to check whether the conveyor belt is damaged, that is, a special post is set up to view the conveyor belt in real time, and it is manually judged whether there is damage to the conveyor belt.

[0003] In the process of implementing the related technology, due to the low accuracy of artificial detection, it is often only possible to detect that the conveyor belt is damaged when the conveyor belt is damaged to a large extent, and it is impossible to detect minor damage or abnormalities of the conveyor belt, and it is impossible to predict in advance when the conveyor belt appears abnormal, which is likely to lead to abnormal operation. At the same time, methods such as manual observation cannot perform precise detection from multiple aspects, that is, the detection purpose is single during the detection of the conveyor belt and it is impossible to comprehensively judge abnormalities, with poor accuracy and unable to detect comprehensively and objectively. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection method and system for conveyor belt damage to solve the problems in the above background.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A detection method for conveyor belt damage includes the following steps:

[0007] Measure and obtain the tension value of the conveyor belt through a tension sensor, mark the tension value as ZN, and at the same time obtain the rated tension value ZED when the conveyor belt operates stably; calculate and obtain the tension variation rate ZB of the conveyor belt; and compare it with the tension variation threshold ZY during the operation of the conveyor belt; obtain the conveyor belt tension stability signal;

[0008] Based on the conveyor belt tension stability signal, make the high-speed camera take pictures at the shooting interval duration value TSD; and mark each taken picture as w, where w is 1, 2, 3... WSD; then perform edge detection and recognition on each taken picture and count the number of crack values in each taken picture, and mark it as HL W ;

[0009] Based on the set of crack values in the WSD taken pictures, calculate and obtain the crack performance value BHLH of the conveyor belt, and compare it with the crack performance threshold LHY; obtain the surface stability signal;

[0010] Based on the surface stability signal, obtain the conveying length value ZL of the conveyor belt. Mark measurement points on the conveyor belt at a distance interval of unit length k, and mark each measurement point as i, where i is 1, 2, 3...; During the operation of the conveyor belt, measure and obtain the upper horizontal distance value from the side of the upper surface of the conveyor belt to the measurement point at each measurement position by a laser rangefinder, denoted as JZSF. i ; Then obtain the lower horizontal distance value from the side of the lower surface of the conveyor belt to the measurement point at each measurement point, denoted as JZXB. i ; Calculate the point deviation difference JZP of the conveyor belt. i ; Further obtain the leveling signal of the conveyor belt.

[0011] Based on the conveyor belt leveling signal, calculate the maximum deviation angle value CT of the conveyor belt, and compare it with the conveyor belt deviation angle threshold CTy to obtain the conveyor belt stability signal.

[0012] As a further solution of the present invention: Calculate the tension variation rate ZB of the conveyor belt.

[0013] Compare the tension variation rate ZB of the conveyor belt with the tension variation threshold ZY during the operation of the conveyor belt.

[0014] If the tension variation rate ZB of the conveyor belt is less than or equal to the tension variation threshold ZY, generate a conveyor belt tension stability signal.

[0015] If the tension variation rate ZB of the conveyor belt is greater than the tension variation threshold ZY, generate a conveyor belt tension abnormal signal.

[0016] Furthermore, the calculation method of the shooting interval duration value TSD is as follows:

[0017] Obtain the running speed value of the conveyor belt, denoted as VSD. At the same time, obtain the length value LSD of the captured pictures by the high-speed camera; Calculate and obtain the shooting interval duration value of the high-speed camera.

[0018] Furthermore, the WSD is the number value of the pictures taken by the high-speed camera.

[0019] Furthermore, the calculation method of the crack manifestation value BHLH of the conveyor belt is as follows:

[0020] Obtain the set of crack number values in the WSD captured pictures, obtain the maximum crack number, denoted as HLmax; Calculate the crack variation value LLH between each captured picture and the adjacent captured picture. W ;

[0021] Calculate the crack variation standard deviation C l l h of the conveyor belt through the standard deviation formula.

[0022] Finally, the crack performance value BXLH of the conveyor belt is obtained through calculation.

[0023] Further, compare the crack performance value BHLH of the conveyor belt with the crack performance threshold LHY;

[0024] If the crack performance value BHLH of the conveyor belt is greater than the crack performance threshold LHY, a crack risk signal is generated;

[0025] If the crack performance value BHLH of the conveyor belt is equal to the crack performance threshold LHY, a surface stability signal is generated.

[0026] Further, calculate and obtain the point deviation difference JZP of the conveyor belt i ;

[0027] Extract the maximum value in the point deviation difference of the conveyor belt, denoted as the point deviation difference extreme value JZPmax;

[0028] Compare the point deviation difference extreme value JZPmax of the conveyor belt with the point deviation threshold JZPY;

[0029] If the point deviation difference extreme value JZPmax of the conveyor belt is less than or equal to the point deviation threshold JZPY, a conveyor belt alignment signal is generated;

[0030] If the point deviation difference extreme value JZPmax of the conveyor belt is greater than the point deviation threshold JZPY, a conveyor belt misalignment signal is generated.

[0031] Further, the method for obtaining the conveyor belt stability signal is as follows:

[0032] Obtain the upper horizontal distance value JZSF from the upper surface side of the conveyor belt to the measurement point i and the lower horizontal distance value JZXB from the lower surface side of the conveyor belt to the measurement point i ;

[0033] Obtain the average side distance JZJZ of the measurement point of the conveyor belt through calculation i ;

[0034] Obtain the maximum value of the average side distance of the measurement point of the conveyor belt, denoted as JZJZmax, and record this measurement point as e;

[0035] Then obtain the minimum value of the average side distance of the measurement point, denoted as JZJZmin, and record this measurement point as f;

[0036] Obtain the maximum offset angle value CT of the conveyor belt through calculation;

[0037] Compare the maximum offset angle value CT of the conveyor belt with the conveyor belt offset angle threshold CTy;

[0038] If the maximum deviation angle value CT of the conveyor belt is less than the conveyor belt deviation angle threshold CTy, a conveyor belt stability signal is generated;

[0039] If the maximum deviation angle value C of the conveyor belt is greater than or equal to the conveyor belt deviation angle threshold CTy, a conveyor belt displacement signal is generated.

[0040] As a further aspect of the present invention: A detection system for conveyor belt damage, comprising:

[0041] Pre-inspection module: Measure and obtain the tension value of the conveyor belt through a tension sensor, mark the tension value as ZN, and at the same time obtain the rated tension value ZED for the stable operation of the conveyor belt; Calculate the tension variation rate ZB of the conveyor belt; And compare it with the tension variation threshold ZY during the operation of the conveyor belt; Obtain the conveyor belt tension stability signal;

[0042] Crack detection module: Based on the conveyor belt tension stability signal, make the high-speed camera keep taking pictures at the shooting interval duration value TSD; And mark each taken picture as w, where w is 1, 2, 3... WSD; Then perform edge detection and recognition on each taken picture and count the number of crack values in each taken picture, and mark it as HL W ;

[0043] Based on the set of crack values in the WSD taken pictures, calculate the crack performance value BHLH of the conveyor belt, and compare it with the crack performance threshold LHY; Obtain the surface stability signal;

[0044] Flatness detection module: Based on the surface stability signal, obtain the conveying length value ZL of the conveyor belt, mark the measurement points on the conveyor belt at a distance interval of unit length k, and mark each measurement point as i, where i is 1, 2, 3...; Measure and obtain the upper horizontal distance value of the upper surface side of the conveyor belt from the measurement point at each measurement point during the operation of the conveyor belt through a laser rangefinder, denoted as JZSF i ; Then obtain the lower horizontal distance value of the lower surface side of the conveyor belt from the measurement point at each measurement point, denoted as JZXB i ; Calculate the point deviation difference JZP of the conveyor belt i , and further obtain the conveyor belt flatness signal;

[0045] Deviation detection module: Based on the conveyor belt flatness signal, calculate the maximum deviation angle value CT of the conveyor belt, and compare it with the conveyor belt deviation angle threshold CTy to obtain the conveyor belt stability signal.

[0046] Advantages of the present invention:

[0047] In the present invention, by detecting the tension of the conveyor belt during operation, it is preliminarily determined whether the conveyor belt is loose. Then, based on the crack detection on the surface of the conveyor belt, it can be effectively determined whether there is a risk of conveyor belt breakage during operation. Then, the deviation of the upper and lower layers of the conveyor belt is detected, and at the same time, the deviation angle of the conveyor belt is detected to achieve multi-faceted detection of the conveyor belt, better ensuring the stability of the conveyor belt during operation. At the same time, it provides an accurate calculation basis for the stable operation of the conveyor belt, avoiding the situation of breakage or detachment of the conveyor belt during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be further described below with reference to the accompanying drawings.

[0049] Figure 1 is a schematic flowchart of the method of the present invention;

[0050] Figure 2 is a system block diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0051] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0052] Embodiment 1

[0053] Please refer to Figure 1 as shown, the present invention is a method for detecting conveyor belt damage, including the following steps:

[0054] Step 1: Measure and obtain the tension value of the conveyor belt through a tension sensor, mark the tension value as ZN, and at the same time obtain the rated tension value ZED of the conveyor belt for stable operation;

[0055] Through calculate to obtain the tension variation rate ZB of the conveyor belt;

[0056] Compare the tension variation rate ZB of the conveyor belt with the tension variation threshold ZY of the conveyor belt operation;

[0057] If the tension variation rate ZB of the conveyor belt is less than or equal to the tension variation threshold ZY, generate a conveyor belt tension stable signal; indicating that the tension of the conveyor belt during operation is in a stable state and the conveyor belt is not loose;

[0058] If the belt tension variation rate ZB is greater than the belt tension variation threshold ZY, a belt tension abnormal signal is generated; at this time, it can be explained that the belt has become loose or slipped, and the belt tension needs to be detected and adjusted to ensure the normal operation of the belt;

[0059] Step 2: Based on the belt tension stable signal, obtain the running speed value of the belt, denoted as VSD. At the same time, obtain the length value LSD of the captured image by the high-speed camera;

[0060] Through Calculate and obtain the shooting interval duration value TSD of the high-speed camera, so that the high-speed camera keeps shooting images at the shooting interval duration value TSD;

[0061] Based on the belt length value SSD, through Calculate and obtain the number value WSD of the images captured by the high-speed camera; and mark each captured image as w, where w is 1, 2, 3... WSD;

[0062] Preprocess each captured image, including denoising and enhancing the contrast of the captured image;

[0063] Then perform edge detection and recognition on each captured image and count the number value of cracks in each captured image, and mark it as HL W ;

[0064] Step 3: Obtain the set of crack number values in the WSD captured images, and obtain the maximum crack number, denoted as HLmax;

[0065] Then, through LLH w =|HL w -HL w-1 |+|HL w -HL w+1 | Calculate and obtain the crack variation value LLH between each captured image and its adjacent captured image W ;

[0066] Among them, it should be noted that since the belt is annular, when the value of w is WSD, LLH WSD =|HL WSD -HL WSD-1 |+|HL WSD -HL1|. Similarly, when the value of w is 1, LLH1 = |HL1 - HL WSD |+|HL1 - HL2|;

[0067] Based on the crack variation value LLH W , calculate and obtain the crack variation standard deviation value Cl l h of the belt through the standard deviation formula;

[0068] Finally, the crack performance value BXLH of the conveyor belt is obtained by calculating BXLH = a×HLmax + b×Cllh; where a is the crack extreme value coefficient, b is the crack mutation coefficient, a > 0, b > 0, and a + b = 1;

[0069] Compare the crack performance value BHLH of the conveyor belt with the crack performance threshold LHY;

[0070] If the crack performance value BHLH of the conveyor belt is greater than the crack performance threshold LHY, a crack risk signal is generated; at this time, it indicates that there are more cracks on the surface of the conveyor belt and the situation is uneven, and it is easy to break, reminding the maintenance personnel to conduct inspections or replacements;

[0071] If the crack performance value BHLH of the conveyor belt is equal to the crack performance threshold LHY, a surface stability signal is generated;

[0072] Step four: Based on the surface stability signal, obtain the conveying length value ZL of the conveyor belt, mark measurement points on the conveyor belt at intervals of unit length k, and mark each measurement point as i, where i is 1, 2, 3...; measure and obtain the upper horizontal distance value of the upper surface side of the conveyor belt from the measurement point at each measurement position during the operation of the conveyor belt through a laser rangefinder, denoted as JZSF i ; At the same time, obtain the lower horizontal distance value of the lower surface side of the conveyor belt from the measurement point at each measurement point during the operation, denoted as JZXB i ;

[0073] Through JZP i =|JZSF i -JZXB i | Calculate and obtain the point deviation difference JZP of the conveyor belt i ;

[0074] Extract the maximum value in the point deviation differences of the conveyor belt, denoted as the point deviation difference extreme value JZPmax;

[0075] Compare the point deviation difference extreme value JZPmax of the conveyor belt with the point deviation threshold JZPY;

[0076] If the point deviation difference extreme value JZPmax of the conveyor belt is less than or equal to the point deviation threshold JZPY, a conveyor belt alignment signal is generated; it indicates that during the operation of the conveyor belt, there is no large deviation between the upper and lower layers of the conveyor belt, and it is in a relatively aligned state;

[0077] If the point deviation difference extreme value JZPmax of the conveyor belt is greater than the point deviation threshold JZPY, a conveyor belt misalignment signal is generated; indicating that there is a relative offset between the upper and lower layers of the conveyor belt, and it is necessary to adjust the upper and lower layer belts to align the upper and lower layer belts;

[0078] Step 5: Based on the conveyor belt alignment signal, obtain the upper horizontal distance value JZSF from the upper surface side of the conveyor belt to the measurement point i and the lower horizontal distance value JZXB from the lower surface side of the conveyor belt to the measurement point i ;

[0079] Through calculate to obtain the average side distance JZJZ of the measurement point on the conveyor belt i ;

[0080] Obtain the maximum value of the average side distance of the measurement point on the conveyor belt, denoted as JZJZmax, and at the same time denote this measurement point as e;

[0081] Then obtain the minimum value of the average side distance of the measurement point, denoted as JZJZmin, and at the same time denote this measurement point as f;

[0082] Through calculate to obtain the maximum deviation angle value CT of the conveyor belt;

[0083] Compare the maximum deviation angle value CT of the conveyor belt with the conveyor belt deviation angle threshold CTy;

[0084] If the maximum deviation angle value CT of the conveyor belt is less than the conveyor belt deviation angle threshold CTy, generate a conveyor belt stability signal; at this time, it means that the conveyor belt is in a relatively stable state during operation;

[0085] If the maximum deviation angle value C of the conveyor belt is greater than or equal to the conveyor belt deviation angle threshold CTy, generate a conveyor belt displacement signal, indicating that during the operation of the conveyor belt, the deviation angle between the maximum deviation point and the minimum deviation point of the conveyor belt compared to the conveyor belt in the standard state has a displacement deviation. At this time, during the operation of the conveyor belt, problems such as running off and inability to align are likely to occur, and it is necessary to replace and repair in time to ensure the normal operation of the conveyor belt;

[0086] By detecting the tension of the conveyor belt during operation, initially judge whether the conveyor belt is loose, and then based on the crack detection on the surface of the conveyor belt, it can effectively determine whether there is a risk of conveyor belt breakage during operation. Then detect the offset of the upper and lower layers of the conveyor belt, and at the same time detect the deviation angle of the conveyor belt to achieve multi-faceted detection of the conveyor belt, better ensure the stability of the conveyor belt during operation, and at the same time provide an accurate calculation basis for the stable operation of the conveyor belt to avoid the situation of breakage or falling off of the conveyor belt during operation.

[0087] Embodiment 2

[0088] Refer to Figure 2As shown in the above embodiments, this embodiment provides a detection system for conveyor belt damage, including:

[0089] Pre-inspection module: Measure and obtain the tension value of the conveyor belt through a tension sensor, mark the tension value as ZN, and at the same time obtain the rated tension value ZED when the conveyor belt operates stably; calculate and obtain the tension variation rate ZB of the conveyor belt; and compare it with the tension variation threshold ZY during the operation of the conveyor belt; obtain the conveyor belt tension stability signal;

[0090] Crack detection module: Based on the conveyor belt tension stability signal, make the high-speed camera take pictures at the shooting interval duration value TSD; and mark each taken picture as w, where w is 1, 2, 3...WSD; then perform edge detection and recognition on each taken picture and count the number of crack values in each taken picture, and mark it as HL W ;

[0091] Based on the set of crack quantity values in the WSD taken pictures, calculate and obtain the crack performance value BHLH of the conveyor belt, and compare it with the crack performance threshold LHY; obtain the surface stability signal;

[0092] Flatness detection module: Based on the surface stability signal, obtain the conveying length value ZL of the conveyor belt, mark measurement points on the conveyor belt at a distance interval of unit length k, and mark each measurement point as i, where i is 1, 2, 3...; measure and obtain the upper horizontal distance value from the side of the upper surface of the conveyor belt to the measurement point at each measurement position during the operation of the conveyor belt through a laser rangefinder, denoted as JZSF i ; Then obtain the lower horizontal distance value from the side of the lower surface of the conveyor belt to the measurement point at each measurement point, denoted as JZXB i ; Calculate and obtain the point deviation difference JZP of the conveyor belt i , and further obtain the flatness signal of the conveyor belt;

[0093] Offset detection module: Based on the conveyor belt flatness signal, calculate and obtain the maximum offset angle value CT of the conveyor belt, and compare it with the conveyor belt offset angle threshold CTy to obtain the conveyor belt stability signal;

[0094] Better ensure the stability of the conveyor belt during operation. At the same time, provide an accurate calculation basis for the stable operation of the conveyor belt to avoid the situation of breakage or detachment of the conveyor belt during operation.

[0095] The above has described an embodiment of the present invention in detail, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A detection method for conveyor belt damage, characterized in that, Including the following steps: Obtain the tension value of the conveyor belt through measurement by a tension sensor, mark the tension value as ZN, and at the same time obtain the rated tension value ZED for the stable operation of the conveyor belt; Calculate to obtain the tension variation rate ZB of the conveyor belt; and compare it with the tension variation threshold ZY during the operation of the conveyor belt; obtain the conveyor belt tension stability signal; Based on the conveyor belt tension stability signal, obtain the operating speed value of the conveyor belt, denoted as VSD. At the same time, obtain the length value LSD of the captured image by the high-speed camera; By calculating to obtain the shooting interval duration value TSD of the high-speed camera, so that the high-speed camera keeps shooting pictures with the shooting interval duration value TSD; Based on the conveyor belt length value SSD, through calculate to obtain the picture shooting quantity value WSD of the high-speed camera; and mark each shot picture as w, where w is 1, 2, 3... WSD; then perform edge detection and recognition on each shot picture and count the crack quantity value in each shot picture, and mark it as HL W ; Based on the set of crack quantity values in the captured image by WSD, calculate to obtain the crack performance value BHLH of the conveyor belt, and compare it with the crack performance threshold LHY; obtain the surface stability signal; Based on the surface stable signal, obtain the conveying length value ZL of the conveyor belt. Mark the measurement points on the conveyor belt at a distance interval of the unit length k, and mark each measurement point as i, where i is 1, 2, 3...; During the operation of the conveyor belt, measure and obtain the upper horizontal distance value JZSF from the side of the upper surface of the conveyor belt to the measurement point at each measurement position through a laser rangefinder. i ; Then obtain the lower horizontal distance value JZXB from the side of the lower surface of the conveyor belt to the measurement point at each measurement point. i ; Calculate the point deviation difference JZP of the conveyor belt. i ; Further obtain the flush signal of the conveyor belt. Based on the conveyor belt alignment signal, calculate to obtain the maximum deviation angle value CT of the conveyor belt, and compare it with the conveyor belt deviation angle threshold CTy to obtain the conveyor belt stability signal; The obtaining method of the conveyor belt stability signal is as follows: Obtain the upper horizontal distance value JZSF from the side of the upper surface of the conveyor belt to the distance measurement point i and the lower horizontal distance value JZXB from the side of the lower surface of the conveyor belt to the distance measurement point i ; Obtain the average value JZJZ of the side distance of the measurement points of the transmission belt through calculation i ; Obtain the maximum value of the average side distance of the measurement points of the conveyor belt, denoted as JZJZmax, and at the same time mark this measurement point as e; Then obtain the minimum value of the average side distance of the measurement points, denoted as JZJZmin, and at the same time mark this measurement point as f; By calculating, the maximum offset angle value CT of the conveyor belt is obtained; Compare the maximum deviation angle value CT of the conveyor belt with the conveyor belt deviation angle threshold CTy; If the maximum deviation angle value CT of the conveyor belt is less than the conveyor belt deviation angle threshold CTy, generate a conveyor belt stability signal; If the maximum deviation angle value C of the conveyor belt is greater than or equal to the conveyor belt deviation angle threshold CTy, generate a conveyor belt displacement signal.

2. The detection method for conveyor belt damage according to claim 1, wherein Calculate to obtain the tension variation rate ZB of the conveyor belt; Compare the tension variation rate ZB of the conveyor belt with the tension variation threshold ZY during the operation of the conveyor belt; If the tension variation rate ZB of the conveyor belt is less than or equal to the tension variation threshold ZY, generate a conveyor belt tension stability signal; If the tension variation rate ZB of the conveyor belt is greater than the tension variation threshold ZY, generate a conveyor belt tension abnormality signal.

3. The detection method for conveyor belt damage according to claim 1, characterized in that The calculation method of the crack performance value BHLH of the conveyor belt is as follows: Obtain the set of crack quantity values in the pictures taken by the WSD camera, obtain the maximum value of the crack quantity, denoted as HLmax; calculate the crack variation value LLH between each taken picture and the adjacent taken pictures W ; Calculate to obtain the crack variation standard deviation value Cllh of the conveyor belt through the standard deviation formula; Finally, calculate to obtain the crack performance value BXLH of the conveyor belt.

4. The detection method for conveyor belt damage according to claim 3, wherein Compare the crack performance value BHLH of the conveyor belt with the crack performance threshold LHY; If the crack performance value BHLH of the conveyor belt is greater than the crack performance threshold LHY, generate a crack risk signal; If the crack performance value BHLH of the conveyor belt and the crack performance threshold LHY, generate a surface stability signal.

5. A method for detecting conveyor belt damage according to claim 1, characterized in that, Calculate and obtain the point deviation difference JZP of the conveyor belt i ; Extract the maximum value among the point deviation differences of the conveyor belt, denoted as the point deviation difference extreme value JZPmax; Compare the point deviation difference extreme value JZPmax of the conveyor belt with the point deviation threshold JZPY; If the point deviation difference extreme value JZPmax of the conveyor belt is less than or equal to the point deviation threshold JZPY, generate a conveyor belt alignment signal; If the point deviation difference extreme value JZPmax of the conveyor belt is greater than the point deviation threshold JZPY, generate a conveyor belt misalignment signal.

6. A detection system for conveyor belt damage, characterized in that, This system is used to execute the detection method described in any one of claims 1-5 above, including: Pre-inspection module: Measure and obtain the tension value of the conveyor belt through a tension sensor, mark the tension value as ZN, and at the same time obtain the rated tension value ZED for the stable operation of the conveyor belt; calculate and obtain the tension variation rate ZB of the conveyor belt; and compare it with the tension variation threshold ZY during the operation of the conveyor belt; obtain the conveyor belt tension stability signal; Crack detection module: Based on the conveyor belt tension stability signal, the high-speed camera is made to take pictures at the shooting interval duration value TSD; and each taken picture is marked as w, where w is 1, 2, 3... WSD; then edge detection and recognition are performed on each taken picture, and the number of crack values in each taken picture is counted and marked as HL W ; Based on the set of crack quantity values in the pictures taken by WSD, calculate and obtain the crack performance value BHLH of the conveyor belt, and compare it with the crack performance threshold LHY; obtain the surface stability signal; Flatness detection module: Based on the surface stability signal, obtain the conveying length value ZL of the conveyor belt, mark the measurement points on the conveyor belt at intervals of the unit length k, and mark each measurement point as i, where i is 1, 2, 3...; during the operation of the conveyor belt, measure and obtain the upper horizontal distance value JZSF from the side of the upper surface of the conveyor belt to the measurement point at each measurement position through a laser rangefinder i ; then obtain the lower horizontal distance value JZXB from the side of the lower surface of the conveyor belt to the measurement point at each measurement point i ; calculate the point deviation difference JZP of the conveyor belt i and further obtain the flatness signal of the conveyor belt Offset detection module: Based on the conveyor belt alignment signal, calculate and obtain the maximum offset angle value CT of the conveyor belt, and compare it with the conveyor belt offset angle threshold CTy to obtain the conveyor belt stability signal.

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