A method for compensating for visual deviation distance, an electronic device, a smart device, and a system

Abstract

This invention discloses a visual deviation distance compensation method, electronic device, intelligent device, and system. The method includes the following steps: First, visual acquisition stations and working stations are arranged according to the mechanical structure; the distance between the visual acquisition stations and working stations is obtained; the real-time visual deviation of each material is acquired at the visual acquisition station; the total displacement of the conveyor belt is obtained; the distance between the visual acquisition station and the working station is subtracted from the total displacement to obtain the theoretical conveyor belt displacement; then, the sum of the real-time visual deviation of the current material and the theoretical conveyor belt displacement is obtained as the actual conveyor belt displacement, where the current material is the first material before the working station; based on the actual conveyor belt displacement, the conveyor belt is moved to ensure that the material can be accurately moved to the working station, achieving the purpose of real-time visual compensation and improving the accuracy of the operation; moreover, this invention has the advantages of simple operation, low cost, and easy implementation.

Description

Technical Field

[0001] This invention relates to the field of automation control technology, and in particular to a visual deviation distance compensation method, electronic device, intelligent device and system. Background Technology

[0002] In some automated industries that produce button batteries today, when copper foil strips and aluminum foil strips are being supplied, the distribution of the electrodes cannot be made completely uniform, and there are slight differences in the spacing between the electrodes. However, it is actually necessary to precisely cut an electrode tab shape from each electrode strip on the strip.

[0003] Currently, some automated equipment uses a vision acquisition device (CCD) to collect the spacing deviation between electrode sheets before cutting the tabs, and sends it to a controller (such as a PLC). The controller then controls a servo motor to pull the material belt 4, transporting the electrode sheets (collectively referred to as material 1) to the cutting station. The controller calibrates the electrode spacing deviation by adding a vision compensation amount to the actual displacement of the material belt 4, ensuring that material 1 can be accurately cut directly below the cutting station. See [link to relevant documentation]. Figure 1 .

[0004] However, in practical use, it was found that due to mechanical structure and space constraints, the vision acquisition station 2 and the cutting station cannot be set up adjacently. This results in the spacing deviation acquired by the vision acquisition device not being able to be compensated for in a timely manner on the material 1 corresponding to the spacing deviation. In other words, material 1 cannot be cut immediately after compensation; it is necessary to wait for several material 1 positions before cutting. Figure 2 As shown, at this time, the spacing deviation collected by vision cannot be immediately applied to the current material 1 for compensation and cutting, which affects the deviation compensation of the electrode sheet. After the material 1 is transported to the cutting station, there is a deviation, which reduces the cutting accuracy. Summary of the Invention

[0005] To address the aforementioned shortcomings, the technical problem to be solved by this invention is to provide a visual deviation gap compensation method, electronic device, intelligent device, and system. This system arranges visual acquisition stations and work stations according to the actual mechanical structure to make reasonable use of space, and compensates the acquired real-time visual deviation to the actual displacement of the material belt in real time, achieving the purpose of real-time visual compensation. This allows the material to move accurately to the work station, improving the accuracy of the operation.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0007] A method for compensating for visual deviation distance includes the following steps:

[0008] The visual acquisition stations and operation stations are arranged according to the mechanical structure;

[0009] Obtain the distance between the visual acquisition station and the work station;

[0010] The visual deviation of each material is collected in real time at the vision acquisition station;

[0011] Obtain the total displacement that the conveyor belt has moved;

[0012] The theoretical material strip displacement is calculated by subtracting the total displacement that has already been moved from the distance between the vision acquisition station and the work station.

[0013] The sum of the current material's visual real-time deviation and the theoretical material belt displacement is then used as the actual material belt displacement. The current material is the first material before the work station.

[0014] The material belt is moved according to its actual displacement.

[0015] The preferred method is that the step of obtaining the total displacement of the conveyor belt specifically includes:

[0016] Obtain the material spacing, the number of materials m between the vision acquisition station and the work station, where m is a positive integer;

[0017] Determine whether the number of times the conveyor belt moves, n, is less than a positive integer, m, where n is a positive integer;

[0018] If it is less than the total displacement S that has been moved. 和 Using the formula: S 和 =r×(mn)+S n-1 The result is obtained by calculating S1 + ... + S1, where r is the material spacing and S... n-1 This represents the actual displacement of the conveyor belt during the (n-1)th iteration.

[0019] If it is not less than the total displacement S that has been moved. 和 Using the formula: S 和 =r×(mn)+S n-1 The result is obtained by calculating S1 + ... + S1, where r is the material spacing and S... n-1 This represents the actual displacement of the conveyor belt during the (n-1)th time.

[0020] The preferred method is that the step of obtaining the distance between the vision acquisition station and the work station specifically involves: obtaining the distance between the vision acquisition station and the work station by manual input or automatic measurement; and / or; the step of obtaining the material spacing and the number of materials m between the vision acquisition station and the work station, where m is a positive integer, specifically involves: obtaining the material spacing and the number of materials m between the vision acquisition station and the work station, where m is a positive integer, by manual input or automatic measurement.

[0021] The preferred method further includes the following steps:

[0022] Once the conveyor belt loading is complete, the material at the vision acquisition station is used as the reference material.

[0023] Collect visual images of the reference material as the reference image;

[0024] Visual images of each material are captured at the vision acquisition station;

[0025] Compare the visual image with a reference image;

[0026] The corresponding real-time visual deviation is obtained.

[0027] An electronic device includes a parameter acquisition module, a vision acquisition module, a displacement calculation module, and an output module. The parameter acquisition module is used to acquire the distance between the vision acquisition station and the work station. The vision acquisition unit is used to acquire the real-time visual deviation of each material located at the vision acquisition station. The displacement calculation module is used to acquire the total displacement of the conveyor belt, subtract the total displacement from the distance between the vision acquisition station and the work station to obtain the theoretical conveyor belt displacement, and then sum the real-time visual deviation of the current material with the theoretical conveyor belt displacement to obtain the actual conveyor belt displacement. The current material is the first material before the work station. The output module is used to output a control signal that drives the conveyor belt to move based on the actual conveyor belt displacement.

[0028] A smart device includes a processor, a memory, an input / output interface, and a network communication interface; the processor, the memory, the input / output interface, and the network communication interface are interconnected; the processor executes a computer program stored in the memory to implement the method described above.

[0029] A material cutting system includes a control device and a vision acquisition device, a cutting mechanism, and a material belt pulling mechanism, which are respectively communicatively connected to the control device. The control device includes the aforementioned electronic equipment or the aforementioned intelligent device.

[0030] In a preferred embodiment, the system further includes a tensioning mechanism, which comprises a torque motor and multiple tensioning pulleys, and the control device outputs a torque threshold to the torque motor.

[0031] In a preferred embodiment, the tensioning wheel includes an upper tensioning wheel and a lower tensioning wheel, wherein the lower tensioning wheel adjusts the tension of the conveyor belt according to gravity.

[0032] In a preferred embodiment, the material belt pulling mechanism includes a servo motor, which operates in a position mode.

[0033] After adopting the above technical solution, the beneficial effects of the present invention are:

[0034] Because the visual deviation gap compensation method, electronic device, intelligent device and system of the present invention can arrange the visual acquisition station and the working station according to the mechanical structure, the material cutting system of the present invention can make reasonable use of space; at the same time, the present invention collects the real-time visual deviation of each material at the visual acquisition station, and when the material is moved to the working station, it compensates the real-time visual deviation to the actual moving displacement of the material belt, thereby ensuring that the material can be accurately moved to the working station, achieving the purpose of real-time visual compensation and improving the accuracy of the operation; and the present invention has the advantages of simple operation, low cost and easy implementation. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the connection between the vision acquisition station and the cutting station in the existing technology;

[0036] Figure 2 This is a schematic diagram of the existing technology when the vision acquisition station and the cutting station are cutting materials at intervals of several pieces.

[0037] Figure 3 This is a schematic diagram of the material cutting system in this invention;

[0038] Figure 4 This is a schematic diagram of the structure of the vision acquisition station and the cutting station in this invention;

[0039] In the diagram: 1-material, 2-vision acquisition station, 3-work station, 4-material belt, 5-tensioning mechanism, 50-torque motor, 51-tensioning wheel, 6-vision acquisition device, 7-cutting mechanism, 8-material belt pulling mechanism. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0041] Example 1:

[0042] like Figure 4 As shown, a method for compensating for visual deviation distance includes the following steps:

[0043] S100. A vision acquisition station 2 and a work station 3 are arranged according to the mechanical structure; wherein the work station 3 can be a cutting station, an inspection station, etc. Specifically, this refers to a system applying the method of this invention, where the system space is rationally utilized, indirectly ensuring the system's performance.

[0044] S200, Obtain the distance between the visual acquisition station 2 and the work station 3;

[0045] It should be noted that the distance between the visual acquisition station 2 and the work station 3 can be obtained through manual input or automatic measurement. Specifically, the distance can be manually measured and then the specific value can be manually input through the human-computer interaction unit. Alternatively, the specific value can be measured automatically, such as using a distance detection sensor or image acquisition.

[0046] S300, collect the real-time visual deviation of each material 1 at the vision acquisition station 2;

[0047] It should be noted that the method in this embodiment further includes the following steps:

[0048] After the material belt 4 is loaded, material 1 on the vision acquisition station 2 is used as the reference material.

[0049] Collect visual images of the reference material as the reference image;

[0050] Visual images of each material 1 are acquired at visual acquisition station 2;

[0051] Compare the visual image with a reference image;

[0052] Based on the comparison results, the corresponding real-time visual deviation is obtained.

[0053] S400: Obtain the total displacement of the conveyor belt that has been moved;

[0054] S500, the theoretical material strip displacement is obtained by subtracting the total displacement that has been moved from the distance between the vision acquisition station 2 and the work station 3.

[0055] S600, then take the sum of the real-time visual deviation of the current material 1 and the theoretical material strip displacement as the actual material strip displacement. The current material 1 is the first material before the work station 3.

[0056] S700: Drive the material belt 4 to move according to the actual displacement of the material belt.

[0057] Using the method of the present invention, the real-time visual deviation of each material 1 can be collected at the visual acquisition station 2. Most importantly, the real-time visual deviation of each material is compensated in real time to the actual movement displacement of the conveyor belt, so that each material 1 is accurately moved to the work station 3. That is, the real-time visual deviation of each material 1 can be compensated in real time to the movement of the conveyor belt, thereby improving the quality of the operation.

[0058] Since the present invention can achieve real-time compensation for visual deviation, the positions of the visual acquisition station 2 and the operation station 3 can be arranged according to the actual mechanical structure. That is, regardless of whether there is one or more materials 1 between the visual acquisition station 2 and the operation station 3, the real-time visual deviation of the material 1 can be compensated to the movement of the tape in real time, solving the technical problems in the prior art that the visual acquisition station 2 and the operation station 3 must be arranged in connection, and when there are multiple materials 1 between the visual acquisition station 2 and the operation station 3, the visual deviation of the material 1 cannot be compensated in real time.

[0059] As Figure 4 shown, in step S400, obtaining the total displacement that the tape has moved, the steps specifically include:

[0060] Obtaining the material spacing, the number m of materials between the visual acquisition station 2 and the operation station 3, and m is a positive integer;

[0061] Judging whether the number n of times the tape moves is less than the positive integer m, where n is a positive integer;

[0062] If it is less, that is, n < m, at this time, the total displacement S that has been moved 和 Using the formula: S 和 = r×(m - n)+S n-1 +…+S1 is calculated, where r is the material spacing, and where S n-1 is the actual displacement of the tape for the (n - 1)th time;

[0063] If it is not less, that is, n ≥ m, at this time, the total displacement S that has been moved 和 Using the formula: S 和 = r×(m - n)+S n-1 +…+S1 is calculated, where r is the material spacing, and where S n-1 is the actual displacement of the tape for the (n - 1)th time.

[0064] It should be noted that: the material spacing can be obtained by manual input or automatic measurement; the number m of materials between the visual acquisition station 2 and the operation station 3 can be obtained by manual input or automatic measurement; specifically, the specific value of the material spacing or the number m of materials can be manually input through the human-computer interaction unit, or the specific value can be obtained by automatic measurement methods, such as measurement by a distance detection sensor or image acquisition, etc.

[0065] Through the above steps, the movement of conveyor belt 4 is divided into two cases: an initial abnormal stage and a normal stage. The dividing point between these two cases is the movement of the conveyor belt before the (m-1)th movement, which is considered an abnormal stage, while the movement from the mth movement onwards is considered a normal stage. For example, if there are four materials between the vision acquisition station 2 and the operation station 3, then the 1st, 2nd, and 3rd movements of the conveyor belt are all abnormal stages, while the 4th and subsequent movements are normal stages.

[0066] The normal and abnormal stages are mainly determined by the total displacement S of the conveyor belt. 和 different.

[0067] To illustrate this more clearly, the following example is provided:

[0068] The actual displacement of the conveyor belt in the first instance is S1 = L + t1 - r × (m - 1);

[0069] The actual displacement of the conveyor belt in the second instance is S2 = L + t2 - (r × (m - 2) + S1);

[0070] The actual displacement of the conveyor belt in the third instance is S3 = L + t3 - (r × (m - 3) + S2 + S1);

[0071] The actual displacement of the conveyor belt in the 4th iteration is S4 = L + t4 - (r × (m - 4) + S3 + S2 + S1);

[0072] ...

[0073] The actual displacement S of the conveyor belt in the (m-1)th time m-1 =L+t m-1 -(r×(mn)+S m-2 +S m-3 +…+S2+S1);

[0074] The actual displacement S of the conveyor belt during the mth time m =L+t m -(S m-1 +S m-2 +…+S2+S1);

[0075] ...

[0076] The nth actual displacement S of the conveyor belt n =L+t n -(S n-1 +S n-2 +…+S n-(m-2) +S n-(m-1) );

[0077] For example:

[0078] like Figure 4As shown, assuming the first material is the material directly below the vision acquisition station 2 after loading, the distance L between the vision acquisition station 2 and the work station 3 is 100mm, the number of materials m between the vision acquisition station 2 and the work station 3 is 4, the material spacing r is approximately 24mm, the real-time visual deviation t1 of the first material is 0.5mm, the real-time visual deviation t2 of the second material is -0.4mm, the real-time visual deviation t3 of the third material is 0.7mm, the real-time visual deviation t4 of the fourth material is -0.2mm, the real-time visual deviation t5 of the fifth material is 0.3mm, and the real-time visual deviation t6 of the sixth material is -0.6mm.

[0079] The actual displacement of the conveyor belt to be moved in the first instance is S1 = 100 + 0.5 - (24 × 3) = 28.5 mm; at this time, 1 is less than 4, and the conveyor belt has not moved before, so the total displacement already moved is S 和 =24×(4-1)+0.

[0080] The actual displacement of the conveyor belt to be moved in the second movement is S2 = 100 - 0.4 - (24 × 2 + 28.5) = 23.1 mm; at this time, 2 is less than 4, so the total displacement already moved is S 和 =24×(4-2)+S1.

[0081] The actual displacement of the conveyor belt to be moved in the third movement is S3 = 100 + 0.7 - ((24 × 1) + 28.5 + 23.1) = 25.1 mm; at this time, 3 is less than 4, so the total displacement already moved is S 和 =24×(4-3)+S2+S1.

[0082] The actual displacement of the conveyor belt to be moved in the 4th time is S4 = 100 - 0.2 - (28.5 + 23.1 + 25.1) = 23.1 mm; at this time, 4 equals 4, so the total displacement already moved is S 和 =S3+S2+S1.

[0083] The actual displacement of the conveyor belt to be moved in the 5th time is S5 = 100 + 0.3 - (23.1 + 25.1 + 23.1) = 29 mm; at this time, 5 is greater than 4, so the total displacement already moved is S 和 =S4+S3+S 21 .

[0084] The actual displacement of the conveyor belt to be moved in the 6th iteration is S6 = 100 - 0.6 - (25.1 + 23.1 + 29) = 22.2 mm; at this point, 6 is greater than 4, so the total displacement already moved is S 和 =S5 + S4 + S3. ...

[0085] It can be seen that from the 4th time onwards, the actual displacement S4 of the material belt can accurately pull each material directly below the work station 3.

[0086] Example 2:

[0087] An electronic device includes a parameter acquisition module, a vision acquisition module, a displacement calculation module, and an output module. The parameter acquisition module is used to acquire the distance between the vision acquisition station and the work station. The vision acquisition unit is used to acquire the real-time visual deviation of each material located at the vision acquisition station. The displacement calculation module is used to acquire the total displacement of the conveyor belt, subtract the total displacement from the distance between the vision acquisition station and the work station to obtain the theoretical conveyor belt displacement, and then sum the real-time visual deviation of the current material with the theoretical conveyor belt displacement to obtain the actual conveyor belt displacement. The current material is the first material before the work station. The output module is used to output a control signal to move the conveyor belt based on the actual conveyor belt displacement.

[0088] The electronic device in this embodiment can be used in an operating system or operating equipment, such as a material cutting system. The parameter acquisition module, vision acquisition module, displacement calculation module, and output module are respectively connected to the control device of the material cutting system, enabling the material cutting system to arrange vision acquisition stations and operating stations according to the mechanical structure, so as to make reasonable use of the layout space. Furthermore, when the material cutting system is running, it can compensate the real-time visual deviation of each material to the actual movement displacement of the material belt in real time, achieving the purpose of real-time visual compensation and improving the operating accuracy of the material cutting system.

[0089] Example 3:

[0090] A smart device includes a processor, a memory, an input / output interface, and a network communication interface; the processor, memory, input / output interface, and network communication interface are interconnected; the processor executes a computer program stored in the memory to implement the visual deviation distance compensation method described in Embodiment 1.

[0091] The intelligent device in this embodiment can be used in operating systems or operating equipment, such as material cutting systems. Its processor can establish a connection with the visual acquisition device, operating mechanism, material conveyor mechanism, etc. of the material cutting system through input / output interfaces to transmit data and instructions. Its processor can also establish a communication connection with remote monitoring equipment and mobile terminals through network communication interfaces to realize online monitoring.

[0092] Because the material cutting system uses the intelligent equipment of this embodiment, it can arrange the visual acquisition station and the working station according to the mechanical structure, so that the layout space can be used rationally; and when the material cutting system is running, it can compensate the visual deviation of each material in real time to the actual movement displacement of the material belt, so as to achieve the purpose of real-time visual compensation and improve the operation accuracy of the material cutting system.

[0093] Example 4:

[0094] like Figure 3 As shown, a material cutting system includes a control device and a vision acquisition device 6, a cutting mechanism 7, and a material belt pulling mechanism 8, which are respectively communicated and connected to the control device. The control device includes the electronic device described in Embodiment 2 or the intelligent device described in Embodiment 3. The material belt pulling mechanism 8 includes a servo motor, which operates in position mode with an accuracy of 0.01mm.

[0095] In this embodiment, the system further includes a tensioning mechanism 5, which includes a torque motor 50 and multiple tensioning rollers 51. The control device outputs a torque threshold to the torque motor 50 to keep the material belt 4 in a tensioned state. In a preferred embodiment, the tensioning rollers 51 include an upper tensioning roller and a lower tensioning roller, and the lower tensioning roller adjusts the tension of the material belt 4 according to gravity.

[0096] Assuming that the material cutting system of this embodiment uses the electronic device described in Embodiment 2, its control device may include a microprocessor, which is connected to the parameter acquisition module, the vision acquisition module, the displacement calculation module and the output module respectively.

[0097] Assuming that the material cutting system in this embodiment uses the intelligent device described in Embodiment 3, the processor of the intelligent device can establish communication connections with the vision acquisition device 6, the cutting mechanism 7 and the material belt pulling mechanism 8 through the input and output interfaces, respectively, so as to transmit data, instructions and signals; it can also use the network communication interface to communicate with other devices or equipment.

[0098] The material cutting system of the present invention uses the electronic equipment of Embodiment 2 or the intelligent equipment of Embodiment 3. Its vision acquisition device 6, cutting mechanism 7, material belt tensioning mechanism and tensioning mechanism 5, etc., can be arranged according to their own mechanical structure. After the arrangement is completed, the vision acquisition station 2 is directly below the vision acquisition device 6, and the cutting station is directly below the cutting mechanism 7.

[0099] During feeding, the material belt 4 passes through all the tension pulleys 51 and extends all the way to the material belt pulling mechanism 8, see [link / reference] Figure 3After the material is fed, the material directly below the vision acquisition device 6 is taken as the first material. The vision acquisition device 6 starts to acquire the visual image of the first material and uses this visual image as the reference image in order to obtain the real-time visual deviation of all subsequent materials.

[0100] During operation, the electronic or intelligent device can determine the actual displacement of the conveyor belt for each movement based on the real-time visual deviation of each material, the distance between the visual acquisition station and the cutting station, the material spacing, and the number of materials (m) between the visual acquisition station and the cutting station. It then outputs a control signal corresponding to this actual displacement. This control signal is transmitted to the servo motor of the conveyor belt pulling mechanism 8, causing the servo motor to rotate and pull the conveyor belt 4 away from the cutting mechanism 7. By rationally arranging the visual acquisition station and the cutting station, when the servo motor stops, the material is precisely moved directly below the cutting mechanism 7. Simultaneously, the material directly below the visual acquisition device 6 is switched. At this point, the control device triggers the cutting mechanism 7 to cut the material and activates the visual acquisition device 6 to acquire the visual image of the material directly below it, thus obtaining the real-time visual deviation of the material and enabling continuous operation.

[0101] It is evident that the material cutting system of the present invention solves the technical problem in the prior art that the visual acquisition station and the operation station must be connected and arranged together, and that multiple materials are spaced between the visual acquisition station and the operation station, which causes the real-time visual deviation of the material to be unable to be compensated for in real time.

[0102] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent visual deviation distance compensation methods, electronic devices, smart devices and systems made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of visual distortion compensation, characterized by, The method comprises the following steps: a visual acquisition station and a work station are arranged according to a mechanical structure; a distance between the visual acquisition station and the work station is obtained; a visual real-time deviation of each material is acquired at the visual acquisition station; a total displacement of the material belt that has been moved is obtained; the distance between the visual acquisition station and the work station is subtracted by the value of the total displacement that has been moved, as a theoretical displacement of the material belt; a sum of the visual real-time deviation of the current material and the theoretical displacement of the material belt is taken as an actual displacement of the material belt, the current material being the first material before the work station; the material belt is moved according to the actual displacement of the material belt. The step of obtaining the total displacement of the material belt that has been moved specifically comprises: a material interval and a number m of materials between the visual acquisition station and the work station are obtained, m being a positive integer; it is determined whether a number n of times of movement of the material belt is less than the positive integer m, n being a positive integer; If less, the sum of displacements S already moved 和 Using the formula: S 和 = r x (m - n) + S n-1 +... + Si, where r is the material spacing, where S n-1 is the actual displacement of the nth-1 material band; If not less than, the total displacement sum S of the already moved 和 Using the formula: S 和 = r x (m-n) + S n-1 +…+ S1is calculated, where r is the material spacing, where S n-1 is the actual displacement of the nth-1 material band.

2. The visual deviation distance compensation method according to claim 1, characterized in that: the step of obtaining the distance between the visual acquisition station and the work station specifically comprises: the distance between the visual acquisition station and the work station is obtained by manual input or automatic measurement; and / or the step of obtaining the material interval and the number m of materials between the visual acquisition station and the work station, m being a positive integer, specifically comprises: the material interval and the number m of materials between the visual acquisition station and the work station are obtained by manual input or automatic measurement, m being a positive integer.

3. The visual distortion compensation method of claim 1, wherein, The method further comprises the following steps: after the feeding of the material belt is completed, a material at the visual acquisition station is taken as a reference material; a visual image of the reference material is acquired as a reference image; a visual image of each material at the visual acquisition station is acquired; the visual image is compared with the reference image; a corresponding visual real-time deviation is obtained.

4. An electronic device, comprising: The system comprises a parameter acquisition module, a visual acquisition module, a displacement calculation module and an output module; the parameter acquisition module is configured to obtain a distance between a visual acquisition station and a work station; the visual acquisition module is configured to acquire a visual real-time deviation of each material located at the visual acquisition station; The displacement calculation module is used to obtain the total displacement of the conveyor belt. The theoretical conveyor belt displacement is obtained by subtracting the total displacement from the distance between the visual acquisition station and the work station. The actual conveyor belt displacement is obtained by summing the real-time visual deviation of the current material with the theoretical displacement. The current material is the first material before the work station. Obtaining the total displacement of the conveyor belt includes: obtaining the material spacing, the number of materials m between the visual acquisition station and the work station (m is a positive integer); determining whether the number of conveyor belt movements n is less than a positive integer m; if less, the total displacement S is calculated. 和 Using the formula: S 和 =r×(mn)+S n-1 The result is obtained by calculating S1 + ... + S1, where r is the material spacing and S... n-1 This represents the actual displacement of the conveyor belt in the (n-1)th iteration; if it is not less than this, it represents the total displacement S that has already been moved. 和 Using the formula: S 和 =r×(mn)+S n-1 The result is obtained by calculating S1 + ... + S1, where r is the material spacing and S... n-1 This represents the actual displacement of the conveyor belt during the (n-1)th iteration. the output module is configured to output a control signal for moving the material belt according to an actual displacement of the material belt.

5. A smart device, comprising: The system comprises a processor, a memory, an input / output interface and a network communication interface; the processor, the memory, the input / output interface and the network communication interface are connected to each other; the processor executes a computer program stored in the memory to implement the method according to any one of claims 1 to 3.

6. A material cutting system, comprising: The system comprises a control device and a visual acquisition device, a cutting mechanism and a material belt pulling mechanism which are connected to the control device in communication, the control device comprises the electronic device according to claim 4, or the control device comprises the smart device according to claim 5.

7. The material cutting system of claim 6, wherein, The system further comprises a tensioning mechanism, the tensioning mechanism comprising a torque motor and a plurality of tensioning wheels, the control device outputting a torque threshold to the torque motor.

8. The material cutting system of claim 7, wherein, The tensioning wheels comprise upper tensioning wheels and lower tensioning wheels, the lower tensioning wheels adjusting a tension of the material belt according to gravity.

9. The material cutting system of claim 6, wherein, The material belt pulling mechanism comprises a servo motor, the servo motor working in a position mode.

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