System and method for automated production control of home products

Abstract

The application discloses a household product automatic production control system and method, and relates to the technical field of automatic production lines, comprising a plate conveying initial configuration module, a plate conveying process monitoring module and a plate conveying parameter optimization module. The application provides a household product automatic production control system and method, which can automatically adjust conveying parameters according to the dynamic position and processing characteristics of the plate in the conveying process, effectively avoiding the collision risk of front and rear plates. The system configures the initial parameters of plate conveying according to the difference evaluation results and basic parameters of the plate, ensuring the smooth progress of the conveying process. In the plate conveying process, the plate conveying process monitoring module monitors the conveying process in real time, and multiple units work cooperatively to process the monitored plate conveying data, which is helpful to timely discover and handle possible abnormal conditions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automated production lines, in particular to an automated production control system and method for home products. BACKGROUND

[0002] In modern furniture manufacturing, the application of automated production control systems is increasingly widespread, and through the coordinated operation of various process systems, furniture production has achieved high efficiency and standardization. Furniture production processes usually involve cutting, edge sealing, drilling, polishing, assembly and other processes, and information exchange and collaborative control between process systems are required to ensure smooth flow of materials such as boards between processes.

[0003] In modern furniture manufacturing automated production control systems, the size, weight, material and process path of the board are collected in real time through manual input, code scanning or sensors, and after verification by the main control system, the process path is distributed to each process equipment and the transmission system with transmission speed, positioning accuracy and other exclusive control parameters, and when parameter abnormalities are detected, an alarm is automatically triggered. The core device for board transmission includes basic transmission devices such as conveyor belts and AGVs (used for long-distance transmission and automatically navigated according to the path planning of the main control system), which are matched with mechanical arms and intelligent sorting devices to realize feeding and sorting, and real-time collection of parameters is realized by using RFID tag readers, vision detection systems, pressure sensors, etc. and feedback to the main control system, and finally the SCADA system integrates the data to generate global instructions, which are sent to PLCs through industrial Ethernet to control the operation of each device, forming a closed-loop control of parameter execution and device collaboration.

[0004] For example, the automatic production control method disclosed in Chinese patent CN109213103B, when producing products, the file exchange between the process systems of two adjacent processes is carried out through the management system, and after each process system completes its task, the corresponding file is generated to feedback to the previous process system, providing production information for the next process system. In this way, the information of the product passes through each production process in turn, and each production process produces according to the information in the corresponding file, and finally completes the entire production of a product.

[0005] For example, the connection and transmission control method and system for PCB transmission disclosed in Chinese patent CN119882547A, comprising: when a PCB card is detected to be placed in a preset scanning area, data acquisition is performed on the PCB card to obtain identification information of the PCB card; the identification information is transmitted to the MES subsystem to obtain a first instruction, the first instruction being an instruction sent by the MES subsystem to the PLC subsystem after receiving the identification information and processing based on the identification information; the first instruction is signal-converted to obtain a target instruction; and the PCB card is controlled to transmit according to the target instruction.

[0006] However, the above-mentioned technology at least has the following technical problems: in the conveying process of the material such as the plate, the existing detection monitoring technology only focuses on the state monitoring of the starting point and the ending point of the conveying, and the plate conveying often adopts unified speed, spacing and other control standards, when the conveying speed is fast or the plate specifications and states are different, the front and rear plates are easy to collide. SUMMARY

[0007] In view of the defects of the prior art, the present application provides a household product automatic production control system and method, which can effectively solve the problems involved in the above background art.

[0008] To achieve the above object, the present application is realized by the following technical scheme: the first aspect of the present application provides a household product automatic production control system, comprising: a plate conveying initial configuration module for marking a set of required conveying plates and obtaining the basic parameters of each plate to be conveyed in the set of required conveying plates, evaluating the difference degree of each plate to be conveyed in the same conveying batch, and configuring the initial parameters of plate conveying according to the plate difference evaluation result and the basic parameters of each plate to be conveyed; a plate conveying process monitoring module for conveying the plates based on the initial parameters of plate conveying and monitoring the conveying process, specifically including a processing feedback unit, a process warning unit and a real-time monitoring unit, and processing the monitored plate conveying data; a plate conveying parameter optimization module for obtaining the processing result of plate conveying data and dynamically adjusting the initial parameters of plate conveying according to the processing result of plate conveying data.

[0009] The second aspect of the present application provides a household product automatic production control method, comprising: S1, marking a set of required conveying plates and obtaining the basic parameters of each plate to be conveyed in the set of required conveying plates, evaluating the difference degree of each plate to be conveyed in the same conveying batch, and configuring the initial parameters of plate conveying according to the plate difference evaluation result and the basic parameters of each plate to be conveyed; S2, conveying the plates based on the initial parameters of plate conveying and monitoring the conveying process, specifically including a processing feedback unit, a process warning unit and a real-time monitoring unit, and processing the monitored plate conveying data; S3, obtaining the processing result of plate conveying data and dynamically adjusting the initial parameters of plate conveying according to the processing result of plate conveying data.

[0010] Compared with the prior art, the embodiments of the present application have at least the following beneficial effects:

[0011] (1) The present application provides a system and method for the automatic production control of home products, which can automatically adjust the transmission parameters according to the dynamic position and processing characteristics of the board during the transmission process, effectively avoiding the risk of collision between the front and rear boards. The system configures the initial parameters of the board transmission according to the difference evaluation results and basic parameters of the board, ensuring the smooth progress of the transmission process. During the board transmission process, the board transmission progress monitoring module monitors the transmission process in real time, and multiple units work together to process the monitored board transmission data, which helps to timely discover and handle possible abnormal situations. The present application realizes precise control and intelligent adjustment of the board transmission process, not only improves the efficiency and stability of the automatic production of home products, but also effectively reduces the production interruption and loss caused by faults.

[0012] (2) The present application can realize accurate classification and transmission control of boards with different materials, sizes, shapes or processing requirements by calculating the transmission characteristic value of the to-be-transmitted board and performing difference evaluation. On the one hand, in the case of different board transmission, the system can identify the diversity of boards in the transmission batch, so as to take more detailed and individualized transmission strategies to ensure that each board can be properly processed and safely transmitted. On the other hand, in the case of the same board transmission, the system can take more efficient and unified transmission strategies, thereby improving production efficiency, reducing energy consumption and cost.

[0013] (3) The present application can more accurately judge the possibility of process failure and its influence on the transmission process by analyzing the process abnormality degree and calculating the abnormality accumulation result, so as to take corresponding measures. The system can automatically adjust the transmission speed to reduce the collision risk of boards during the transmission process. When the process abnormality accumulation parameter is too large, the operator is prompted to check and handle the possible failure immediately to ensure the safe and stable operation of the production line.

[0014] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the system module of the present application.

[0016] Figure 2 It is a schematic diagram of the method flow of the present application.

[0017] Figure 3 It is a difference transmission evaluation flowchart of the present application.

[0018] Figure 4 It is a transmission parameter optimization flowchart of the present application.

[0019] Figure 5 It is a transmission state overview interface diagram of the present application.

[0020] Figure 6 Fig. 1 is a self-defined transmission parameter interface diagram of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0022] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0023] Referring to Figure 1 The first aspect of the present application provides a household product automatic production control system, comprising: a board transmission initial configuration module, configured to mark a required board transmission set, acquire basic parameters of each board to be transmitted in the required board transmission set, evaluate the difference of each board to be transmitted in the same transmission batch, and configure initial parameters of board transmission according to the evaluation result of board difference and the basic parameters of each board to be transmitted.

[0024] A board transmission process monitoring module is configured to transmit the board based on the initial parameters of board transmission, and monitor the transmission process, specifically including a processing feedback unit, a process early warning unit and a real-time monitoring unit, and process the monitored board transmission data.

[0025] A board transmission parameter optimization module is configured to acquire the processing result of board transmission data, and dynamically adjust the initial parameters of board transmission according to the processing result of board transmission data.

[0026] In this embodiment, the demand conveying board material set refers to a set of boards that need to be processed, transported or assembled in the automatic production process of home products. These boards may differ in material, size, shape or processing requirements, and are recorded as each to-be-conveyed board. The same conveying batch refers to a set of boards arranged for the same or similar conveying operation within the same time period. For example, the to-be-conveyed boards are transported on the same conveying belt within a certain period of time, which can be recorded as the same conveying batch. It should be understood that, if not otherwise specified, the home product automation production control in this application is only analyzed for the boards in the same conveying batch.

[0027] In this embodiment, the board conveying data includes board dynamic position information and board conveying pre-and-post-process real-time information, and the board conveying data processing result includes board conveying first-level parameters, board conveying second-level parameters and board conveying third-level parameters.

[0028] Referring to Figure 3 The difference degree of each to-be-conveyed board in the same conveying batch is evaluated. The specific process is as follows: pressure monitoring points are arranged on the bottom surface contact surface of each to-be-conveyed board, and the pressure of each pressure monitoring point on the bottom surface contact surface of each to-be-conveyed board is collected. The bottom surface contact surface refers to the surface area of the board in contact with the conveying equipment. The basic parameters of each to-be-conveyed board include the weight of each to-be-conveyed board, the bottom surface contact area of each to-be-conveyed board, and the pressure of each pressure monitoring point on the bottom surface contact surface of each to-be-conveyed board.

[0029] In this embodiment, the weight of the board is collected by the weighing sensor integrated with the conveying belt, the bottom contact boundary of the board is scanned by the laser profile sensor installed on the side or bottom of the production line, and the bottom surface pressure of the conveying board is collected by the pressure sensor.

[0030] The absolute value of the difference between the pressure of each pressure monitoring point on the bottom surface contact surface of each to-be-conveyed board and the average pressure of the corresponding to-be-conveyed board is obtained, which is recorded as the pressure deviation value of each pressure monitoring point of each to-be-conveyed board. The average value of the pressure deviation value of each pressure monitoring point of each to-be-conveyed board is marked as the pressure deviation value of each to-be-conveyed board. The weight, bottom surface contact area and pressure deviation value of each to-be-conveyed board are normalized, and the normalized results are respectively weighted and coupled according to the difference influence proportion coefficient preset in the board database, to obtain the conveying characteristic value of each to-be-conveyed board. The conveying characteristic value of the to-be-conveyed board is a quantitative index of the conveying stability of the to-be-conveyed board.

[0031] In a specific embodiment, the normalization is realized by ratio operation of the three parameters of weight, bottom surface contact area and pressure deviation value with the allowed maximum conveying weight, the allowed maximum conveying contact area and the pressure average of the corresponding pressure monitoring points of the bottom surface contact surface of the to-be-conveyed board. The difference influence proportion coefficient specifically includes the difference influence proportion coefficient corresponding to the weight, the bottom surface contact area and the pressure deviation value, and respectively represents the influence degree of the three parameters of weight, bottom surface contact area and pressure deviation value on the conveying characteristic value. The specific expression of the conveying characteristic value of each to-be-conveyed board is as follows:

[0032]

[0033] In the formula, BT i represents the conveying characteristic value of the i-th to-be-conveyed board, G i represents the weight of the i-th to-be-conveyed board, S i represents the bottom surface contact area of the i-th to-be-conveyed board, F id represents the pressure of the d-th pressure monitoring point of the bottom surface contact surface of the i-th to-be-conveyed board, i represents the serial number of each to-be-conveyed board, i = 1, 2, 3, …, n, n represents the total number of to-be-conveyed boards, d represents the serial number of each pressure monitoring point, d = 1, 2, 3, …, g, g represents the total number of pressure monitoring points.

[0034] G0 represents the allowed maximum conveying weight preset in the board database, and S0 represents the allowed maximum conveying contact area preset in the board database, wherein the allowed maximum conveying weight and the allowed maximum conveying contact area are determined according to the specifications of the conveying equipment.

[0035] TE1 represents the difference influence proportion coefficient corresponding to the preset weight, TE2 represents the difference influence proportion coefficient corresponding to the preset bottom surface contact area, and TE3 represents the difference influence proportion coefficient corresponding to the preset pressure deviation value. The difference influence proportion coefficient can be further corrected by the historical conveying data stored in the board database, and the relevance of weight, contact area and pressure deviation value and conveying abnormality is counted. For example, a plurality of sets of conveying data and corresponding conveying results are collected, and the correlation between the degree of allowed maximum conveying weight, allowed maximum conveying contact area and pressure average and abnormal events is calculated by correlation coefficient analysis. The higher the correlation of the parameter, the greater the proportion coefficient. For new equipment or special scenes (such as conveying high-precision boards) lacking historical data, the weight can be corrected by experts in the field based on experience, and verified by experiment.

[0036] It should be understood that the weight and the bottom surface contact area are positively correlated with the conveying stability, and the pressure deviation value is negatively correlated with the conveying stability, so that TE1 and TE2 take positive values in the embodiment, and TE3 should take a negative value. The greater the conveying characteristic value of the to-be-conveyed board is, the higher the stability of the to-be-conveyed board is, and the faster and closer the conveying can be performed.

[0037] In the embodiment, the weight and the bottom surface contact area jointly affect the friction of the board in the conveying process, the smaller the friction is, the more likely the board is to deviate in the conveying process, and the uniformity of the pressure distribution directly affects the stability of the board. The weight and the bottom surface contact area are directly related to the pressure of the pressure monitoring point, and the smaller the weight of the board is or the greater the bottom surface contact area is, the smaller the pressure collected by the corresponding pressure monitoring point is.

[0038] An average value of the conveying characteristic values of the to-be-conveyed boards is obtained, and a preset conveying characteristic deviation parameter is extracted from the board database, and the conveying characteristic value difference interval is obtained by joint processing. The conveying characteristic deviation parameter is a preset deviation value for distinguishing the conveying characteristic values of the difference boards. The upper limit of the interval of the conveying characteristic value difference interval is obtained by summing the average value of the conveying characteristic values of the to-be-conveyed boards and the conveying characteristic deviation parameter, and the lower limit of the interval of the conveying characteristic value difference interval is obtained by subtracting the average value of the conveying characteristic values of the to-be-conveyed boards from the conveying characteristic deviation parameter.

[0039] The conveying characteristic values of the to-be-conveyed boards are compared with the conveying characteristic value difference interval, if the conveying characteristic value of a to-be-conveyed board exceeds the conveying characteristic value difference interval, the to-be-conveyed board is marked as a difference board, the number of difference boards and the total number of to-be-conveyed boards in the conveying batch are counted, and the difference degree of the conveying batch boards is obtained. The difference degree of the conveying batch boards is used to quantify the difference degree of the conveying boards in the current conveying batch, specifically, the ratio of the number of difference boards to the total number of to-be-conveyed boards, and the higher the difference degree is, the more complex the types of the conveying boards in the current conveying batch are.

[0040] A board difference degree threshold is extracted from the board database, if the difference degree of the conveying batch boards is greater than or equal to the board difference degree threshold, the conveying batch is evaluated as a difference board conveying, otherwise, the conveying batch is evaluated as a same board conveying.

[0041] In this embodiment, by calculating the conveying characteristic value of the to-be-conveyed board and performing difference evaluation, accurate classification and conveying control of boards of different materials, sizes, shapes or processing requirements can be realized. On the one hand, in the case of conveying different boards, the system can identify the diversity of the boards in the conveying batch, so as to take more detailed and individualized conveying strategies, such as adjusting the conveying speed, increasing the monitoring frequency or enabling specific processing equipment, to ensure that each board can be properly processed and safely conveyed. On the other hand, in the case of conveying the same board, the system can take more efficient and unified conveying strategies, such as increasing the conveying speed, reducing unnecessary monitoring steps or optimizing the processing flow, to improve production efficiency, reduce energy consumption and cost. This intelligent difference evaluation method not only improves the flexibility and adaptability of the automatic production of home products, but also significantly improves the overall performance of the production line and the quality of the products.

[0042] If the difference evaluation result of the conveying batch is the same board conveying, the average value of the conveying characteristic value of each to-be-conveyed board is taken as an input value to match the preset board conveying initial parameters from the board database; if the difference evaluation result of the conveying batch is different board conveying, the minimum conveying characteristic value in the conveying batch is taken as an input value to match the preset board conveying initial parameters from the board database.

[0043] In this embodiment, as shown in Figure 5 The preset board conveying initial parameters are displayed in real time by the control system. For the board conveying initial parameters, the management personnel can customize the value range, as shown in Figure 6 The management personnel can customize the upper and lower limits of the conveying speed and the distance between the boards through the control system. The system can optimize the board conveying initial parameters according to the actual situation.

[0044] In one specific embodiment, when the difference evaluation result of the conveying batch is the same board conveying, buffer distance adjustment judgment is also needed, and the specific process is as follows: the conveying characteristic value of the different board is subjected to absolute value processing with the average value of the conveying characteristic value, and the result is recorded as the characteristic difference value of each different board. The characteristic difference value of each different board is compared with the preset characteristic difference value threshold in the board database. If the characteristic difference value of a certain different board is greater than or equal to the characteristic difference value threshold, the different board is recorded as requiring buffer distance adjustment; otherwise, it is recorded as not requiring buffer distance adjustment.

[0045] For the difference plate requiring buffer interval adjustment, according to the characteristic difference value of the difference plate, a buffer interval adjustment value is matched from the plate database, and the buffer interval adjustment value is summed with the initial buffer interval of the difference plate and the initial buffer interval of the next to be conveyed plate of the difference plate to obtain the adjusted initial buffer interval of the difference plate and the initial buffer interval of the next to be conveyed plate, and the buffer interval adjustment operation is completed.

[0046] Referring to Figure 4 The specific process of adjusting the plate conveying initial parameters is as follows: conveying the plates based on the plate conveying initial parameters, collecting the plate dynamic position information in real time through the real-time monitoring unit, adjusting the plate conveying initial parameters based on the plate dynamic position information to obtain the plate conveying first-level parameters. The plate conveying initial parameters include the initial conveying speed and the initial buffer intervals of the to-be-conveyed plates, wherein the buffer interval of each to-be-conveyed plate refers to the conveying interval between the to-be-conveyed plate and the last conveyed plate. The plate dynamic position information includes the moving speed of each to-be-conveyed plate and the actual buffer interval of each to-be-conveyed plate; and the plate conveying first-level parameters refer to the conveying speed and the buffer interval of each to-be-conveyed plate adjusted based on the plate dynamic position information.

[0047] The deviation value of the initial buffer interval and the actual buffer interval of each to-be-conveyed plate is recorded as the deviation displacement of each to-be-conveyed plate, and the plate deviation displacement threshold is obtained from the plate database. If the moving speed of each to-be-conveyed plate is equal to the initial conveying speed and the deviation displacement of each to-be-conveyed plate is less than the plate deviation displacement threshold, no additional operation is performed; if the moving speed of each to-be-conveyed plate is not equal to the initial conveying speed, a speed deviation ratio is obtained, the initial conveying speed is dynamically adjusted according to the speed deviation ratio to obtain the adjusted conveying speed as the conveying speed in the plate conveying first-level parameters.

[0048] In this embodiment, the difference between the actual moving speed of each to-be-conveyed plate and the initial conveying speed is subjected to ratio operation with the initial conveying speed to obtain the speed deviation ratio. According to the speed deviation ratio, a corresponding speed adjustment coefficient is matched from the plate database, and the initial conveying speed is multiplied by the speed adjustment coefficient to obtain the adjusted conveying speed.

[0049] It should be understood that the matching from the plate database in this embodiment is realized according to the mapping relationship pre-stored in the plate database, and the specific mapping relationship can be determined by controlling variable experiments to simulate the conveying state under different parameter combinations.

[0050] If the deviation displacement of each to-be-conveyed board is greater than or equal to the board deviation displacement threshold value, a board placement warning is performed, the initial buffer spacing of each to-be-conveyed board is compensated and adjusted according to the size of the deviation displacement, and the adjusted buffer spacing of each to-be-conveyed board is obtained as the buffer spacing in the board conveying first-level parameter.

[0051] In this embodiment, the difference between the deviation displacement of each to-be-conveyed board and the board deviation displacement threshold value is calculated, denoted as a deviation compensation amount, and the deviation compensation amount is added to the initial buffer spacing of the to-be-conveyed board to obtain the adjusted buffer spacing.

[0052] When the difference evaluation result of the conveying batch is difference board conveying, the buffer spacing in the board conveying first-level parameter needs to be compensated twice. The specific process is as follows: the conveying feature value of each to-be-conveyed board is subjected to difference operation with the conveying feature value of the previous to-be-conveyed board to obtain the board conveying feature value difference of each to-be-conveyed board.

[0053] The board conveying feature value difference of each to-be-conveyed board is matched with the preset buffer spacing secondary compensation parameter in the board database, the corresponding buffer spacing secondary compensation parameter is obtained according to the interval of the board conveying feature value difference in which the board conveying feature value difference of each to-be-conveyed board is located, and the buffer spacing in the board conveying first-level parameter is subjected to secondary compensation adjustment. The secondary compensation adjustment specifically sums the buffer spacing secondary compensation parameter and the buffer spacing in the board conveying first-level parameter to obtain the buffer spacing after secondary compensation adjustment.

[0054] The process pre-warning unit collects process real-time information before and after board conveying in real time, judges whether the processes before and after board conveying are abnormal according to the process real-time information before and after board conveying, analyzes the abnormality of the processes before and after board conveying if the processes before and after board conveying are abnormal, and performs secondary adjustment on the initial parameters of board conveying to obtain board conveying secondary parameters. If the processes before and after board conveying are not abnormal, no additional operation is performed.

[0055] It should be understood that the first-level adjustment and the secondary adjustment in this embodiment are performed in real time, and when the first-level adjustment and the secondary adjustment occur at the same time, the secondary adjustment is preferentially executed.

[0056] The process real-time information before and after board conveying includes first process equipment working parameters, second process equipment working parameters, actual feeding speed and actual discharging speed. The first process equipment refers to the equipment before conveying, and the second process equipment refers to the equipment after conveying. The first process equipment working parameters and the second process equipment working parameters include working current, working voltage, working frequency and the like, which can reflect the working state and performance of the first process equipment and the second process equipment. The actual feeding speed refers to the speed of the first process equipment processing boards, and the actual discharging speed refers to the speed of the second process equipment processing boards.

[0057] In the real-time information of the plate conveying before and after the process, each parameter is closely related to the equipment running state and the material flow rhythm. The working parameters of the first process equipment directly reflect its running state and load condition, and then affect the actual feeding speed. For example, when the current is stable and the frequency is matched, the equipment runs smoothly, and the feeding speed remains stable. If the current abnormally rises or the voltage fluctuates, the feeding speed may decrease due to excessive load or poor running of the equipment. Similarly, the working parameters of the second process equipment are related to the actual discharging speed. When the equipment parameters are normal, the discharging efficiency is stable, and when the parameters are abnormal, the discharging speed may decrease.

[0058] The deviation values of the real-time information of the plate conveying before and after the process are calculated from the corresponding standard values, and normalized processing is performed. The normalized processing results are respectively weighted and coupled according to the preset process abnormality influence proportion coefficients in the plate database to obtain process abnormality indication parameters. The process abnormality indication parameters are used to quantify the abnormality degree of the process before and after the process.

[0059] In this embodiment, the standard values corresponding to the real-time information of the plate conveying before and after the process include the first process equipment working parameter standard value, the second process equipment working parameter standard value, the feeding speed standard value and the discharging speed standard value. The standard values are preset according to the specifications of the process equipment. The first process equipment working parameter standard value, for example, the working current standard value and the working voltage standard value of the first process equipment, and the second process equipment working parameter standard value, for example, the working current standard value and the working voltage standard value of the second process equipment. The process abnormality influence proportion coefficients specifically include the process abnormality influence proportion coefficients corresponding to the equipment working parameters, the feeding speed and the discharging speed. The specific expression of the process abnormality indication parameter is:

[0060]

[0061] In the formula, EH represents the process abnormality indication parameter, D1 q represents the qth working parameter value of the first process equipment, D1 0q represents the qth working parameter standard value of the first process equipment, D2 q represents the qth working parameter value of the second process equipment, D2 0q represents the qth working parameter standard value of the second process equipment, V1 represents the actual feeding speed, V10 represents the feeding speed standard value, V2 represents the actual discharging speed, V20 represents the discharging speed standard value, q represents the serial number of each working parameter, q = 1, 2, 3,..., k, and k represents the total number of working parameters.

[0062] GE1 represents the preset device operating parameter corresponding to the process abnormality influence proportionality coefficient, GE2 represents the preset feeding speed corresponding to the process abnormality influence proportionality coefficient, and GE3 represents the preset discharging speed corresponding to the process abnormality influence proportionality coefficient. The process abnormality influence proportionality coefficient is obtained in the manner shown in the difference influence proportionality coefficient.

[0063] The greater the process abnormality indication parameter, the higher the probability of failure of the front and rear processes, and the higher the probability of emergency braking in the conveying process. At this time, the conveying speed needs to be controlled to avoid plate collision.

[0064] In the plate conveying time interval, the process abnormality indication parameter is integrated and operated, the integral operation result of the process abnormality indication parameter is differentially operated with the preset integral operation result of the process abnormality indication parameter threshold, and the difference result is recorded as the process abnormality cumulative parameter.

[0065] The specific expression of the process abnormality cumulative parameter β is: In the formula, EH(t) represents the process abnormality indication parameter at time t, t [t0, t1], [t0, t1] is the plate conveying time interval, and C represents the preset process abnormality indication parameter threshold. When the process abnormality indication parameter is greater than or equal to the process abnormality indication parameter threshold, it indicates that the front and rear processes are likely to be abnormal. The process abnormality cumulative parameter is used to measure the abnormality accumulation degree, and the greater the process abnormality cumulative parameter, the higher the risk of emergency braking. At this time, the conveying speed needs to be reduced to avoid the risk of plate collision.

[0066] The process abnormality cumulative parameter is compared with the first process abnormality threshold and the second process abnormality threshold preset in the plate database. If the process abnormality cumulative parameter is less than or equal to the first process abnormality threshold, no additional operation is performed; if the process abnormality cumulative parameter is greater than the first process abnormality threshold and less than the second process abnormality threshold, the plate conveying initial parameter is adjusted at the second level; and if the process abnormality cumulative parameter is greater than the second process abnormality threshold, a process abnormality warning is performed.

[0067] In this embodiment, by analyzing the process abnormality degree and calculating the abnormality accumulation result, the possibility of process failure and its influence on the conveying process can be more accurately judged, so that corresponding measures are taken. The system can automatically adjust the conveying speed to reduce the risk of plate collision in the conveying process. When the process abnormality cumulative parameter is too large, the operator is prompted to check and handle the possible failure immediately to ensure the safe and stable operation of the production line. This intelligent process abnormality detection and processing method not only improves the reliability and safety of the automatic production of home products, but also effectively reduces the production interruption and loss caused by failure.

[0068] The process abnormality cumulative parameter is matched with the conveying speed compensation value corresponding to each process abnormality cumulative parameter interval preset in the plate database, the corresponding conveying speed compensation value is obtained according to the process abnormality cumulative parameter interval in which the process abnormality cumulative parameter is located, the initial conveying speed is compensated and adjusted, and the conveying speed in the plate conveying secondary parameter is obtained.

[0069] It should be understood that the conveying speed compensation value is summed with the initial conveying speed to obtain the conveying speed in the plate conveying secondary parameter, and the conveying speed compensation value can be a negative value.

[0070] The processing feedback unit judges whether the plate is processed according to the plate processing task, if the plate is not processed, no additional operation is performed, and if the plate is processed, the processing feedback unit obtains the conveying characteristic value after the plate is processed, and performs three-level adjustment on the plate conveying initial parameter to obtain the plate conveying three-level parameter.

[0071] It should be understood that the processing feedback unit triggers when the current conveying task ends and the plate enters the next process, and the plate conveying three-level parameter is recorded as the plate conveying initial parameter of the next stage conveying task when the next stage conveying task starts.

[0072] The deviation value between the conveying characteristic value after the plate is processed and the conveying characteristic value before the plate is processed is recorded as the plate processing characteristic deviation value. The plate processing characteristic deviation value is compared with the plate processing characteristic deviation threshold value preset in the plate database, if the plate processing characteristic deviation value is greater than or equal to the plate processing characteristic deviation threshold value, the plate conveying initial parameter is proportionally adjusted according to the plate processing characteristic deviation value to obtain the plate conveying three-level parameter, and if the plate processing characteristic deviation value is less than the plate processing characteristic deviation threshold value, no additional operation is performed.

[0073] In the embodiment, the specific process of proportionally adjusting the plate conveying initial parameter according to the plate processing characteristic deviation value is that the ratio of the plate processing characteristic deviation value to the plate conveying initial parameter is recorded as the plate processing characteristic deviation ratio, the corresponding adjustment coefficient is matched from the plate database according to the plate processing characteristic deviation ratio, the plate conveying initial parameter is multiplied by the adjustment coefficient to obtain the adjusted plate conveying parameter as the plate conveying three-level parameter. The plate conveying three-level parameter includes the adjusted conveying speed and the buffer interval of each to-be-conveyed plate.

[0074] Referring to Figure 2 The second aspect of the present application provides a method for automatic production control of home products, comprising: S1, marking a set of required conveying plates, obtaining the basic parameters of each to-be-conveyed plate in the set of required conveying plates, evaluating the difference degree of each to-be-conveyed plate in the same conveying batch, and configuring the plate conveying initial parameter according to the plate difference evaluation result and the basic parameters of each to-be-conveyed plate.

[0075] S2, conveying the plate based on the plate conveying initial parameters, and monitoring the conveying process, specifically comprising a processing feedback unit, a process early warning unit and a real-time monitoring unit, and processing the monitored plate conveying data.

[0076] S3, obtaining plate conveying data processing results, and dynamically adjusting the plate conveying initial parameters according to the plate conveying data processing results.

[0077] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and do not limit the application to the specific embodiments described above. Obviously, many modifications and variations can be made according to the content of the present application. The present application selects and describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. Any modification or variation that does not deviate from the structure of the present application or exceed the scope defined by the present application shall belong to the protection scope of the present application.

Claims

1. A system for the automatic control of the production of home products, characterized in that it comprises: The application relates to a plate conveying system and a plate conveying method. The plate conveying system comprises a plate conveying initial configuration module, a plate conveying process monitoring module and a plate conveying parameter optimization module. The plate conveying initial configuration module is used for marking a required plate conveying set, acquiring basic parameters of each plate to be conveyed in the required plate conveying set, evaluating the difference degree of each plate to be conveyed in the same conveying batch, and configuring plate conveying initial parameters according to the plate difference evaluation result and the basic parameters of each plate to be conveyed. The plate conveying process monitoring module is used for conveying plates based on the plate conveying initial parameters and monitoring the conveying process, and specifically comprises a processing feedback unit, a process early warning unit and a real-time monitoring unit.

2. The system for automatic production control of home products according to claim 1, characterized in that: The plate conveying parameter optimization module is used for acquiring plate conveying data processing results and dynamically adjusting the plate conveying initial parameters according to the plate conveying data processing results. The difference degree of each plate to be conveyed in the same conveying batch is evaluated, and the specific process is as follows: Pressure monitoring points are arranged on the bottom surface contact surface of each plate to be conveyed, and the pressure of each pressure monitoring point on the bottom surface contact surface of each plate to be conveyed is collected. The basic parameters of each plate to be conveyed include the weight of each plate to be conveyed, the bottom surface contact area of each plate to be conveyed and the pressure of each pressure monitoring point on the bottom surface contact surface of each plate to be conveyed. The absolute value of the difference between the pressure of each pressure monitoring point on the bottom surface contact surface of each plate to be conveyed and the average pressure of the corresponding plate to be conveyed is acquired, which is recorded as the pressure deviation value of each pressure monitoring point of each plate to be conveyed. The average value of the pressure deviation values of each pressure monitoring point of each plate to be conveyed is marked as the pressure deviation value of each plate to be conveyed. The weight, bottom surface contact area and pressure deviation value of each plate to be conveyed are normalized.

3. The system for automatic production control of home products according to claim 2, characterized in that: The normalized results are respectively weighted and coupled according to the difference influence proportion coefficient preset in the plate database to obtain the conveying characteristic value of each plate to be conveyed. The conveying characteristic value of each plate to be conveyed is a quantitative index of the conveying stability of the plate to be conveyed. The average value of the conveying characteristic values of each plate to be conveyed is acquired, and a preset conveying characteristic deviation parameter is extracted from the plate database. The conveying characteristic value difference interval is obtained by jointly processing the average value and the preset conveying characteristic deviation parameter. The conveying characteristic value of each plate to be conveyed is compared with the conveying characteristic value difference interval. If the conveying characteristic value of a certain plate to be conveyed exceeds the conveying characteristic value difference interval, the plate to be conveyed is marked as a difference plate. The number of difference plates and the total number of plates to be conveyed in the conveying batch are counted to obtain the plate difference degree of the conveying batch. If the plate difference degree of the conveying batch is greater than or equal to the plate difference degree threshold value, the conveying batch is evaluated as a difference plate conveying. Otherwise, the conveying batch is evaluated as a same plate conveying. If the difference evaluation result of the conveying batch is the same plate conveying, the average value of the conveying characteristic values of each plate to be conveyed is used as an input value to match the preset plate conveying initial parameters from the plate database. If the difference evaluation result of the conveying batch is a difference board conveying, the minimum conveying characteristic value in the conveying batch is obtained as an input value to match the preset board conveying initial parameter from the board database.

4. The system for automatic production control of home products according to claim 1, wherein: The monitored board conveying data is processed, and the specific analysis process is as follows: The board conveying data includes board dynamic position information and process live information before and after board conveying. Based on the board conveying initial parameter, the board is conveyed, the board dynamic position information is collected in real time by the real-time monitoring unit, the board conveying initial parameter is adjusted at a first level according to the board dynamic position information, and the board conveying first-level parameter is obtained. The process live information before and after board conveying is collected in real time by the process early warning unit, whether the processes before and after board conveying are abnormal is judged according to the process live information before and after board conveying, if the processes before and after board conveying are abnormal, the abnormal conditions of the processes before and after board conveying are analyzed, the board conveying initial parameter is adjusted at a second level, the board conveying second-level parameter is obtained, and if the processes before and after board conveying are not abnormal, no additional operation is performed. The processing feedback unit judges whether the board is processed according to the board processing task, if the board is not processed, no additional operation is performed, and if the board is processed, the conveying characteristic value after the board is processed is obtained by the processing feedback unit, the board conveying initial parameter is adjusted at a third level, and the board conveying third-level parameter is obtained.

5. The system for automatic production control of home products according to claim 4, characterized in that: The board conveying initial parameter is adjusted at a first level according to the board dynamic position information, and the board conveying first-level parameter is obtained, and the specific process is as follows: The board conveying initial parameter includes an initial conveying speed and initial buffer spacings of each to-be-conveyed board; The board dynamic position information includes moving speeds of each to-be-conveyed board and actual buffer spacings of each to-be-conveyed board; The board conveying first-level parameter refers to the conveying speed and the buffer spacings of each to-be-conveyed board adjusted according to the board dynamic position information; The deviation value of the initial buffer spacing and the actual buffer spacing of each to-be-conveyed board is recorded as the deviation displacement of each to-be-conveyed board, and the board deviation displacement threshold value is obtained from the board database; If the moving speed of each to-be-conveyed board is equal to the initial conveying speed and the deviation displacement of each to-be-conveyed board is less than the board deviation displacement threshold value, no additional operation is performed; If the moving speed of each to-be-conveyed board is not equal to the initial conveying speed, a speed deviation ratio is obtained, the initial conveying speed is dynamically adjusted according to the speed deviation ratio, the adjusted conveying speed is obtained as the conveying speed in the board conveying first-level parameter, and if the deviation displacement of each to-be-conveyed board is greater than or equal to the board deviation displacement threshold value, board placement warning is performed, the initial buffer spacings of subsequent to-be-conveyed boards are adjusted according to the deviation displacement, the adjusted buffer spacings of each to-be-conveyed board are obtained as the buffer spacings in the board conveying first-level parameter. If the processes before and after board conveying are abnormal, the abnormal conditions of the processes before and after board conveying are analyzed, and the specific process is as follows:

6. The system for automatic production control of home products according to claim 4, characterized in that: The process live information before and after board conveying includes first process equipment working parameters, second process equipment working parameters, actual feeding speed and actual discharging speed; ​ The deviation values of the plate conveying before and after process actual situation information are calculated respectively with corresponding standard values, and normalized processing is performed, the normalized processing results are respectively weighted and coupled according to the preset process abnormality influence proportion coefficient in the plate database, and the process abnormality indicating parameter is obtained, which is used for quantifying the abnormality degree of the before and after processes; In the plate conveying time interval, the process abnormality indicating parameter is integrated and operated, at the same time, the integral operation result of the process abnormality indicating parameter is differentially operated with the preset process abnormality indicating parameter threshold integral operation result, and the difference result is recorded as the process abnormality cumulative parameter; The process abnormality cumulative parameter is compared with the first process abnormality threshold and the second process abnormality threshold preset in the plate database, if the process abnormality cumulative parameter is less than or equal to the first process abnormality threshold, no additional operation is performed; If the process abnormality cumulative parameter is greater than the first process abnormality threshold and less than the second process abnormality threshold, the plate conveying initial parameter is adjusted in two levels; If the process abnormality cumulative parameter is greater than the second process abnormality threshold, the process abnormality warning is performed.

7. The system for automatic production control of home products according to claim 6, characterized in that: The plate conveying initial parameter is adjusted in two levels to obtain the plate conveying two-level parameter, and the specific analysis process is: The process abnormality cumulative parameter is matched with the conveying speed compensation value corresponding to each process abnormality cumulative parameter interval preset in the plate database, the corresponding conveying speed compensation value is obtained according to the process abnormality cumulative parameter interval where the process abnormality cumulative parameter is located, the initial conveying speed is compensated and adjusted to obtain the conveying speed in the plate conveying two-level parameter.

8. The system for automatic production control of home products according to claim 4, characterized in that: The plate conveying initial parameter is adjusted in three levels to obtain the plate conveying three-level parameter, and the specific process is: The deviation value of the conveying characteristic value after plate processing and the conveying characteristic value before plate processing is recorded as the plate processing characteristic deviation value; The plate processing characteristic deviation value is compared with the plate processing characteristic deviation threshold preset in the plate database, if the plate processing characteristic deviation value is greater than or equal to the plate processing characteristic deviation threshold, the plate conveying initial parameter is proportionally adjusted according to the plate processing characteristic deviation value to obtain the plate conveying three-level parameter; If the plate processing characteristic deviation value is less than the plate processing characteristic deviation threshold, no additional operation is performed.

9. The system for automatic production control of home products according to claim 5, wherein: The plate conveying initial parameter is adjusted in one level according to the plate dynamic position information to obtain the plate conveying one-level parameter, which includes: When the difference evaluation result of the conveying batch is difference plate conveying, the buffer interval in the plate conveying one-level parameter needs to be compensated twice, and the specific process is: The conveying characteristic value difference of each to-be-conveyed plate is obtained by differentially operating the conveying characteristic value of each to-be-conveyed plate and the conveying characteristic value of the previous to-be-conveyed plate; The buffer interval two-time compensation parameter is matched with the plate conveying characteristic value difference of each to-be-conveyed plate, and the corresponding buffer interval two-time compensation parameter is obtained according to the plate conveying characteristic value difference interval where the plate conveying characteristic value difference of each to-be-conveyed plate is located, and the buffer interval in the plate conveying one-level parameter is adjusted twice.

10. The method for controlling the automatic production of home products is applied to the system for controlling the automatic production of home products according to any one of claims 1-9, characterized in that: It includes: S1, mark the demand conveying board set, and obtain the basic parameters of each to-be-conveyed board in the demand conveying board set, evaluate the difference of each to-be-conveyed board in the same conveying batch, and configure the initial parameters of the board conveying according to the board difference evaluation result and the basic parameters of each to-be-conveyed board; S2, conveying the board based on the initial parameters of the board conveying, and monitoring the conveying process, specifically including a processing feedback unit, a process early warning unit and a real-time monitoring unit, and processing the monitored board conveying data; S3, obtain the processing result of the board conveying data, and dynamically adjust the initial parameters of the board conveying according to the processing result of the board conveying data.

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