High-efficiency intelligent production scheduling method for circuit boards

Abstract

The invention discloses an efficient and intelligent production scheduling method for circuit boards, and belongs to the field of printed circuit board production and manufacturing. According to the high-efficiency intelligent production scheduling method for the circuit board provided by the embodiment of the invention, a feeding package and a process production scheduling rule are set through basic standard data such as front equipment, a production cycle, WIP balance, a production calendar, team members, product design, an order state and the like. Data obtained through ERP and MES statistical analysis are summarized into standard files of internal equipment, productivity, process, production cycle and process settlement, a system is guided to perform production order scheduling, and the method has the following advantages that the system automatically generates and continuously optimizes an order package for feeding and manufacturing, and the overall productivity is maximized; the shortest order production cycle and the minimum WIP settlement are realized; automatic transportation across workshops is realized; the production progress and abnormal conditions are monitored in real time, the plan is adjusted in time, and the production efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of printed circuit board production and manufacturing, and particularly relates to an efficient and intelligent production scheduling method for circuit boards. Background Art

[0002] Currently, circuit board production equipment already has a relatively high level of automation. Manufacturing enterprises have generally introduced information systems such as ERP and MES, achieving comprehensive collection of data in multiple aspects such as production, equipment status, process flow, and quality control. However, due to the barriers between information systems and the need to improve the level of intelligence, the collected and analyzed data mainly serves the decision-making of management personnel and the product design link, and has not been directly integrated into the intelligent production process, restricting the application potential of data in production automation.

[0003] In terms of the production scheduling of circuit boards, it still mainly relies on manual operation. From the material preparation of orders, delivery, scheduling planning of each production process, to logistics handling and other links, they are all arranged based on manual management experience and judgment. This highly manual production scheduling method not only fails to make full and effective use of production resources such as production equipment and materials, but also results in a high production scheduling error rate. At the same time, in the face of emergencies, the flexibility and efficiency of manual production scheduling adjustment are also insufficient, further affecting production efficiency and product quality. Summary of the Invention

[0004] This application provides an efficient and intelligent production scheduling method for circuit boards to solve the above technical problems.

[0005] The technical solutions adopted in this application are as follows:

[0006] The embodiments of this application provide an efficient and intelligent production scheduling method for circuit boards. By using basic standard data such as pre-stage equipment, production cycle, WIP inventory, production calendar, team members, product design, and order status, feeding packages and process production scheduling rules are set. The data statistically analyzed by ERP and MES is summarized into standard files of internal equipment, production capacity, process, production cycle, and process inventory to guide the system to schedule production orders.

[0007] In some embodiments, production scheduling trigger rules, production scheduling sequence rules, and machine selection rules for different processes are set, and production exception warning rules are set.

[0008] In some embodiments, through the MES system, data such as orders and equipment are associated to perform spontaneous and active production scheduling for each process. A production scheduling management module is set in the MES system to display the production scheduling details of each process and the production situation of each product, realizing the replacement of manual production scheduling with automated production scheduling in the MES system and achieving production exception warning.

[0009] In some embodiments, the production scheduling system is associated with the AGV control system, and the way of manually issuing handling instructions is replaced by the system issuing handling instructions, so as to achieve spontaneous automatic transportation across workshops.

[0010] In some embodiments, statistical analysis is performed based on the production scheduling management module, and reports such as order structure, output achievement, planned delivery, and WIP are output for management and assessment.

[0011] In some embodiments, production data, analysis data, resource composite diagrams, order Gantt charts, product inventory load charts, etc. are real-time projected onto the production kanban, facilitating timely grasping of the production rhythm, discovering problems and making adjustments.

[0012] In some embodiments, this solution configures a separate database, sets up a production scheduling management module in the MES system. The MES system generates feeding packages according to basic data and standards such as equipment, production cycle, WIP, production calendar, and team members, and at the same time associates order and product design data, according to the pre-set feeding rules.

[0013] In some embodiments, after the planner confirms and adjusts the product cycle requirements through the special urgent delivery date input window, the MES system performs spontaneous and automatic production scheduling for each process according to the pre-set production scheduling trigger rules in combination with the data transfer system.

[0014] In some embodiments, the production scheduling plan is officially executed after being manually reviewed and confirmed again.

[0015] In some embodiments, the AGV transports automatically according to the handling instructions issued by the system.

[0016] In some embodiments, the MES system analyzes and projects the data statistically by the production scheduling management module onto the kanban.

[0017] In some embodiments, an overdue alarm rule is set in the production scheduling management module to give a color warning to products that do not meet the production scheduling plan.

[0018] In some embodiments, the basic data and standards are divided into 5 categories: equipment basic data, production cycle, WIP inventory, production calendar, and team members.

[0019] For example, the equipment basic data includes: equipment theoretical production capacity, equipment quantity, equipment process parameters, equipment process capabilities, and equipment status.

[0020] For example, the production cycle data includes: standard production cycle, process production cycle control, residence time, preparation time, production time, inspection time, and transportation time.

[0021] For example, the WIP inventory includes: standard process WIP inventory, online WIP management, equipment capacity, and temporary storage capacity.

[0022] For example, the production calendar includes: the feeding plan and the process maintenance plan.

[0023] In some embodiments, the feeding rules include: the package generation rule, the order matching rule, the package substitution rule, and the feeding quantity rule.

[0024] In some embodiments, the production scheduling rules include: the production scheduling trigger rule, the production scheduling sequence rule, the machine selection rule, and the counting rule.

[0025] In some embodiments, the data analysis includes: the order structure analysis, the order pre-investment rate breakdown, the output achievement rate analysis, the planned delivery rate analysis, the production cycle analysis of each process, and the in-process inventory analysis.

[0026] In some embodiments, the kanban diagrams include: the production kanban, the analysis kanban, the resource compliance diagram, the order Gantt chart, and the product inventory load diagram.

[0027] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows:

[0028] 1. Through the calculation of equipment production capacity and the identification of bottleneck equipment production capacity, the system automatically generates and continuously optimizes order packages for feeding production, achieving the maximization of overall production capacity.

[0029] 2. On the basis of achieving the maximization of overall production capacity, by coordinating, tracking, and optimizing the production flow time, the shortest order production cycle and the minimum WIP inventory are achieved.

[0030] 3. Through automatic production scheduling, the AGV does not need to be controlled in the background for each process, and can automatically schedule and transport products between different processes according to the order of the production schedule, realizing automatic transportation across workshops.

[0031] 4. Through the pre-set production scheduling trigger rule, the system is triggered to quickly generate the optimal production plan, realizing real-time monitoring of the production progress and abnormal situations, timely adjusting the plan, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 Shows the MES automatic production scheduling management flowchart provided by the embodiments of the present application;

[0034] Figure 2It shows the schematic diagram of module data for MES automatic production scheduling management provided by the embodiments of the present application. Detailed implementation manners

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clear and understandable, the present application 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 only used to explain the present application and are not used to limit the present application.

[0036] Please refer to Figure 1 and Figure 2 As shown, a high-efficiency and intelligent production scheduling method for circuit boards provided by the embodiments of the present application is specifically implemented in the following manner:

[0037] 1. Database configuration

[0038] Set database parameters that meet the requirements, configure the storage path, and configure network access;

[0039] Create database objects such as data tables, indexes, views, etc.;

[0040] Set the data import path, and configure user role and permission requirements.

[0041] 2. Import and update basic data and standards

[0042] The basic data and standards include: data such as equipment, production cycle, WIP inventory, production calendar, team members, product design, order status, etc.

[0043] ① Equipment basic data:

[0044] Calculate the actual daily production man-hours of each process station equipment = daily man-hours - daily maintenance time - (weekly maintenance time / 7 days) - (monthly maintenance time / 28 days) - (preventive maintenance time / 28 days) - daily equipment alarm time - daily material / part replacement and cleaning time - process inspection time - material number changeover time * average number of changeovers - material number changeover time * number of changeovers - meal time - shift change time.

[0045] Analyze the production capacity of each process according to the actual daily production man-hours of the equipment. The daily production capacity of the process station equipment = number of equipment * production beat (number of units produced per minute) * daily actual production man-hours * average conversion area per production unit.

[0046] Number each process station equipment, and summarize the process capability data of each equipment, including: size, accuracy, tolerance board thickness and special requirements.

[0047] ② Production cycle data:

[0048] Calculate the standard production cycle for each process. The single LOT production cycle = production batch residence time + preparation time + production time + inspection time + transportation time.

[0049] ③ WIP inventory standard:

[0050] Calculate the WIP inventory standard for equipment in each process. The theoretical WIP in production per month = quantity in equipment + quantity in carriers + transfer quantity.

[0051] Quantity in equipment = production speed of the bottleneck equipment on the line / (board width + spacing).

[0052] Quantity in carriers = 1 LOT per double-station line.

[0053] Temporary storage quantity: Node-style inventory (for processes such as inner layer pretreatment, pinning, electroplating, solder mask pretreatment, and hot air solder leveling pretreatment) is 4 LOTs per line; continuous-style inventory is 2 LOTs per line.

[0054] ④ Production calendar:

[0055] The system forms a feeding date schedule based on the working calendar and process maintenance plan date entered monthly, and performs monthly feeding matching according to the feeding date schedule.

[0056] ⑤ Order status and product design data:

[0057] The MES system retrieves data from the order management module and product design module.

[0058] ⑥ Team members:

[0059] Form a team member distribution table based on equipment name, operator name, proficiency, job type, and position.

[0060] 3. Feeding rules

[0061] Through equipment capacity calculation and identification of bottleneck equipment capacity, the system automatically generates and continuously optimizes order packages for feeding.

[0062] ① Package generation rules

[0063] Establish order structure characteristics: Distribute orders according to three characteristics: hierarchy, surface treatment process, and thin plate; sort out and match corresponding workstations based on different structure characteristics; generate the required packages according to the rules of different characteristics.

[0064] ② Feeding area selection rules

[0065] Feeding package area management: The system calculates the expected feeding area as a reference based on the monthly planned output and feeding plan date. If it exceeds the target daily capacity of the bottleneck process, the daily capacity of the bottleneck process is used as a reference, and the planning engineer confirms the total feeding area according to the production situation.

[0066] The expected target area of daily feeding = (Total planned monthly feeding area - Feeding area already completed) / (Total planned days of feeding - Days of feeding already completed).

[0067] Data maintenance: On the last day of each month at 8:00, maintain the output target for the next working month.

[0068] ③ Matching rules for order to be fed:

[0069] The system matches according to the package and feeding area situation daily, and there is only one feeding per day.

[0070] Order matching: Screening and matching of orders with priority in delivery date (e.g., important customer orders and replenishment orders), screening and matching of market orders to be fed.

[0071] Matching rules for orders with priority in delivery date: Mark and maintain the delivery date of important customer orders to be within 7 days, and the system gives priority to matching; after the replenishment order is confirmed, the system automatically selects the nearest feeding time for feeding.

[0072] Matching rules for orders to be fed: After matching the orders with priority in delivery date, calculate the data into the feeding package of the current day; the system matches in the order pool of orders within 7 days (configurable) according to the remaining time of the orders from less to more, meeting the feeding package and feeding area requirements of the current day; if the feeding area requirement is not met, a pop-up reminder will be given. Orders can be replaced by ticking, and the system changes the feeding package according to the replacement rules and then conducts another match; if the feeding area requirement is still not met, the system pushes the lacking package structure and quantity to the planning and marketing departments through OA, and releases the corresponding orders.

[0073] Order matching sequence: Matching is carried out in the order of sorting the remaining time of the orders from less to more. Calculation formula: Market delivery date - Current date - Number of days in the production cycle from the current process to warehousing.

[0074] Feeding package replacement rules:

[0075] Level: When the number of layers of eight-layer boards and above is insufficient, it is supplemented by six-layer boards, then by four-layer boards, and finally by double-sided boards when still insufficient; when the number of six-layer boards is insufficient, it is first supplemented by half four-layer boards and half eight-layer boards, then by four-layer boards, secondly by double-sided boards, and finally by eight-layer boards; when the number of four-layer boards is insufficient, it is first supplemented by half six-layer boards and half double-sided boards, then by six-layer boards, secondly by double-sided boards, and finally by eight-layer boards; when the number of double-sided boards is insufficient, it is supplemented by multi-layer boards (in the order of four-layer → six-layer → eight-layer); the quantity of all supplementary orders must ensure the maximum production capacity of the equipment.

[0076] ④ Confirmation of feeding quantity

[0077] Feeding Quantity Standard: For the same order, the PNL quantity is 4 lots (configurable).

[0078] For the same order with a quantity < 4 lots, feed in one go.

[0079] For the same order with a quantity ≥ 4 lots, feed 4 lots each time, and screen according to the order matching rule. During the matching process, the maximum quantity for the same order each time does not exceed 8 lots (configurable).

[0080] The remaining quantity (< 2 lots) is not fed separately and needs to be combined with the last set for feeding.

[0081] Quantity of Pre-fed Remaining: Planned feeding remaining - Warehouse remaining. Normal remaining boards are calculated in pcs, and double-sided boards can be calculated as remaining only after being approved by the customer.

[0082] Calculate the feeding quantity for normal orders:

[0083] Quantity of Planned Feeding Work Order (PCS) = Planned feeding quantity * (1 + Pre-feed rate).

[0084] Calculation of Batch Pre-feed Rate:

[0085] New Order: For new orders, add the new order scrap rate to obtain the pre-feed rate.

[0086] Return Order: Feed according to the average scrap rate of the order in the recent three months (abnormal scraps, maximum scraps, and minimum scraps are screened out and not used as data for calculating the average scrap rate). If the average scrap rate of the order > 5% (configurable), the system will pop up a reminder and push it to the planning manager through 0A for approval before feeding.

[0087] Calculation of Sample Pre-feed Scrap Rate: Calculate the pre-feed rate by adding up the sample scrap rates of all sample orders.

[0088] Management Rule: The system calculates the final feeding quantity according to the order quantity and formula, and manual confirmation is required. If the manual needs to temporarily modify the pre-feed rate of a certain model, an application needs to be submitted and approved by the planning manager before modification can be made.

[0089] ⑤ Calculation of the production quantity for replenishment orders

[0090] Trigger method for replenishment production: At 8:00, 12:00, and 16:00 every day. Trigger rule: Total quantity of un-delivered orders already fed - Finished product inventory - (WIP quantity at each station * (1 - Preset scrap rate)) ≥ 0.

[0091] Formula for calculating the replenishment quantity: (Total quantity of un-delivered orders already fed - Finished product inventory - (WIP quantity at each station * (1 - Preset scrap rate))) / (1 - Pre-feed rate).

[0092] Operation rules: The system automatically generates a replenishment order list, which is confirmed by the planning engineer. The marketing follow-up engineer confirms whether the customer accepts the missing board and confirms it on the MES. The replenishment order list is pushed to the material control, and the material control planner determines the material status or purchases the corresponding materials.

[0093] 4. Set production scheduling rules.

[0094] The system filters the current inventory of the warehouse to form batches that can be dispatched, and divides the batches into those to be dispatched, those on hold, and those to be dispatched.

[0095] ① When the batches of the same model to be arranged are ≥2LOT boards, the incoming materials can be arranged.

[0096] The processes that can be arranged as soon as the materials are received are: cutting, inner layer exposure, inner layer DES, electroplating VCP, drilling, outer layer pre-treatment exposure and connection, outer layer DES, and molding.

[0097] ② For all processes, when all batches of the same model of material in the P / O have arrived, or the temporary storage quantity is ≥ 2lots and the quantity to be produced in the previous process is ≥ 2lots, production can be scheduled.

[0098] Scheduling rules for cutting process:

[0099] ① Batch production sequence: schedule production from shortest to longest time available for delivery.

[0100] ② When creating a LOT card, the system automatically allocates the line, double-sided boards are scheduled to the thick plate cutting line, and multi-layer boards are scheduled to the thin plate cutting line.

[0101] Scheduling rules for inner layer pre-treatment, coating, exposure, and DES connection:

[0102] ① Arrange production from shortest to longest according to the delivery surplus time of the inner layer pre-processing inventory batches. If the delivery surplus time is the same, arrange production on a first-in-first-out basis.

[0103] ②DES lines with consistent formula (e.g. consistent copper thickness) are produced in a centralized manner; the same production model is arranged on the same equipment for continuous production.

[0104] ③ Production scheduling triggering time: All batches of the same model of material feeding P / O have arrived or the temporary storage quantity of the same model of boards is ≥ 4 lots (the number of lots is configurable, and the number of lots to be produced in the current process is greater than 4 lots).

[0105] Pressing production scheduling rules:

[0106] ① Browning line production scheduling rules

[0107] Production is scheduled from shortest to longest according to the surplus time of the delivery period of the inventory batches. For batches with the same surplus time of the delivery period, production is scheduled based on first-in-first-out.

[0108] Machine selection:

[0109] Products of the same production model are arranged to be continuously produced on the same equipment; products with the same lamination formula are centrally scheduled and continuously produced on the same equipment.

[0110] Scheduling trigger timing:

[0111] All batches in the feeding P / O of the same model have all arrived or the temporary storage quantity of the boards of the same model ≥ 4 lots (the number of lots can be configured, and the quantity to be produced in the current process > 4 lots).

[0112] ② Lamination pre-layering line scheduling rules

[0113] Batch scheduling order: Based on the first-in, first-out principle; the same model is continuously produced.

[0114] Selection of machines: For laminations with ≥ 6 layers, schedule them to the automatic fusion machine; for 4-layer boards, schedule them to the automatic rivetless machine.

[0115] Scheduling trigger timing: Scheduling can be done as soon as the materials arrive.

[0116] ③ Lamination scheduling rules:

[0117] Batch scheduling order: According to the first-in, first-out principle, and for the same lamination formula, arrange production on the same equipment.

[0118] Scheduling trigger timing: Scheduling can be done as soon as the materials arrive.

[0119] ④ Drill target scheduling rules

[0120] Batch scheduling order: Based on the first-in, first-out principle; the same model is continuously produced.

[0121] Scheduling trigger timing: Scheduling can be done as soon as the materials arrive.

[0122] Drilling scheduling rules:

[0123] ① Drilling scheduling

[0124] Batch scheduling order: Schedule according to the remaining delivery time of the drilling inventory batches from short to long, and for the same remaining delivery time, schedule according to the first-in, first-out principle.

[0125] Machine allocation: The number of machines for a single model in the same group does not exceed 6 (configurable), and the total number of machines across groups does not exceed 10 (configurable).

[0126] ② De-pinning line scheduling

[0127] Batch scheduling order: Based on the first-in, first-out principle; the same model is continuously produced.

[0128] Scheduling trigger timing: Scheduling can be done as soon as the materials arrive.

[0129] Hole metallization scheduling rules:

[0130] Production is arranged from shortest to longest according to the surplus time of the copper plating inventory batches. If the surplus time of the delivery period is the same, production is arranged according to the first-in-first-out principle.

[0131] The copper plating formula is consistent and the production is centralized, and the drilling expansion and shrinkage coefficients are centralized; the same production model is arranged on the same equipment for continuous production.

[0132] Electroplating VCP production scheduling rules

[0133] Batch production sequence: According to the first-in-first-out principle, the same production model is arranged on the same machine for production.

[0134] Machine selection: The same machine should be used for production if the electroplating formula, size and plate thickness are consistent (reducing the number of times the accompanying plate should be picked up).

[0135] Holding time: Yellow for remaining 2 hours warning, red for overtime, triggering a rework order.

[0136] Production scheduling triggering time: Production scheduling can be carried out as soon as materials arrive.

[0137] Outer line production rules

[0138] ①External layer pretreatment

[0139] Production is scheduled from shortest to longest according to the surplus time of the delivery period of the outer layer pre-processing inventory batches. If the surplus time of the delivery period is the same, production is scheduled according to the first-in-first-out principle.

[0140] The same dry film size is produced in a centralized manner.

[0141] Machine selection: Arrange the same equipment for continuous production with the same production model and the same dry film size.

[0142] Scheduling trigger timing: All batches of the same model of material feeding P / O have arrived or the number of boards of the same model in temporary storage is ≥ 4 lots (the number of lots is configurable, and the number of boards to be produced in the current process is greater than 4 lots).

[0143] ②External layer etching

[0144] Batch production order: according to the exposed inventory batches, the production is arranged from shortest to longest according to the delivery surplus time. If the delivery surplus time is the same, the production is arranged according to the first-in-first-out method.

[0145] Machine selection: The same production model is arranged on the same equipment for continuous production, and the same etching formula is arranged on the same machine for production.

[0146] The residence time standard is: 15min<T<24H. When the residence time of the board after film pasting is >15min, it can be scheduled for production. The remaining 2H warning is yellow, and the timeout is red. The residence time ≥24min triggers the rework order scheduling and the defective product order.

[0147] Solder mask production rules:

[0148] ① Pre-treatment of solder mask

[0149] Batch production order: production is scheduled from shortest to longest according to the surplus time of the previous processing inventory batches. If the surplus time of the same delivery period is the same, production is scheduled according to the first-in-first-out principle.

[0150] Cross-production scheduling is carried out according to the production scheduling sequence of silk screen printing, and the continuous production quantity of the same silk screen printing type (for example, the same ink) shall not be less than 144pnl.

[0151] Scheduling trigger timing: when all batches of the same model of material feeding P / O have arrived or the temporary storage quantity of the same model of boards is ≥ 4 lots (the quantity is configurable, and the current process has a production quantity of > 4 lots).

[0152] ② Anti-welding silk screen

[0153] Non-spraying panels are produced on the silk-screen printing line, and spraying panels are produced on the spraying line.

[0154] Production is scheduled from shortest to longest according to the remaining time of the WIP inventory batches to be processed. For batches with the same remaining time of delivery, production is scheduled based on first-in, first-out.

[0155] Inks with the same specifications should be produced on the same machine.

[0156] The standard of residence time: T<4H, residence time ≥4H will be suspended; for production scheduling, the remaining 1H will be warned in yellow, and overtime of 4H will trigger a defective product list.

[0157] Production scheduling triggering time: Production scheduling can be carried out as soon as materials arrive.

[0158] Immersion gold production rules:

[0159] Production is scheduled from shortest to longest according to the surplus time of the surface treatment inventory batches. For batches with the same delivery time, production is scheduled based on first-in-first-out.

[0160] All batches of the same model of material feeding P / O have arrived or the temporary storage quantity of the same model of boards is ≥ 4lots (the quantity is configurable, and the current process has a production quantity of > 4lotl).

[0161] Lead-free tin spray production rules:

[0162] Production is scheduled from shortest to longest according to the surplus time of the surface treatment inventory batches. For batches with the same delivery time, production is scheduled based on first-in-first-out.

[0163] Arrange concentrated continuous production for gold and nickel with the same thickness to reduce the number of line cleaning times.

[0164] All batches of the same model of material in the P / O have arrived or the temporary storage quantity of the same model of boards is ≥ 4 lots (the quantity is configurable, and the current process has a production quantity of > 4 lots).

[0165] Molding scheduling rules:

[0166] Schedule production from the shortest to the longest lead time surplus of the inventory batches. For the same lead time, schedule production on a first-in, first-out basis, and arrange continuous production for the same production model.

[0167] After a new batch arrives at the molding workstation, similar part numbers cannot be scheduled for production or transferred to the next process simultaneously.

[0168] Scheduling trigger timing: Production can be scheduled as soon as the incoming materials arrive.

[0169] Finished product cleaning line scheduling rules:

[0170] Schedule production from the shortest to the longest lead time surplus of the inventory batches. For the same lead time, schedule production on a first-in, first-out basis, and arrange continuous production for the same production model.

[0171] After a new batch arrives at the molding workstation, similar part numbers cannot be scheduled for production or transferred to the next process simultaneously.

[0172] OSP scheduling rules:

[0173] Schedule production from the shortest to the longest lead time surplus of the inventory batches. For the same lead time, schedule production on a first-in, first-out basis, and arrange continuous production for the same production model.

[0174] After a new batch arrives at the molding workstation, set that similar part numbers cannot be scheduled for production or transferred to the next process simultaneously (the scheduling permission can be intervened manually).

[0175] Test FQC scheduling rules:

[0176] Schedule production from the shortest to the longest lead time surplus of the inventory batches. For the same lead time, schedule production on a first-in, first-out basis, and arrange continuous production for the same production model.

[0177] After a new batch arrives at the test workstation, similar part numbers cannot be scheduled for production or transferred to the next process simultaneously.

[0178] Packaging scheduling rules:

[0179] Schedule production from the shortest to the longest lead time surplus of the inventory batches. For the same lead time, schedule production on a first-in, first-out basis, and arrange continuous production for the same production model.

[0180] After a new batch arrives at the packaging workstation, similar part numbers cannot be scheduled for production or transferred to the next process simultaneously.

[0181] 5. Personnel review and scheduling execution

[0182] Set the reviewer to confirm the scheduling results and adjust abnormal situations. After personnel confirmation, issue for execution.

[0183] 6. Automatic Logistics

[0184] The AGV control system is associated with the production scheduling system, and the AGV completes handling according to the production scheduling and production situation.

[0185] 7. Basic Data Change

[0186] The basic data is to be entered into the system after being reviewed according to the update time regulations and requirements.

[0187] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included within the protection scope of the present application.

Claims

1. A method for efficiently and intelligently scheduling production of circuit boards, characterized in that: include: Set up material feeding packages and process scheduling rules through basic standard data such as front-end equipment, production cycle, WIP balance, production calendar, team members, product design, order status, etc. The data from ERP and MES statistical analysis are summarized into standard documents on internal equipment, production capacity, technology, production cycle, and process balance to guide the system in scheduling production orders.

2. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: Set production scheduling trigger rules, production scheduling sequence rules and machine selection rules for different processes, and set production abnormality warning rules; Through the MES system, orders, equipment and other data are linked to conduct spontaneous and proactive production scheduling for each process; Set up a production scheduling management module in the MES system to display the production scheduling details of each process and the production status of each product, so that the MES system can automatically schedule production instead of manual scheduling and realize production abnormality warning; The production scheduling system is linked to the AGV control system, and the system issues handling instructions instead of the original manual handling instructions, realizing spontaneous cross-workshop automatic transportation; Conduct statistical analysis based on the production scheduling management module, and output reports such as order structure, output achievement, planned delivery, and WIP for management and assessment; Production data, analytical data, resource composite diagrams, order Ganze diagrams, product inventory load diagrams, etc. are put on the production dashboard in real time, making it easier to grasp the production rhythm in a timely manner, discover problems and make adjustments.

3. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: Configure a separate database and set up a production scheduling management module in the MES system. The MES system will generate a material feeding package based on basic data and standards such as equipment, production cycle, WIP, production calendar, and team members, while associating order and product design data and the pre-set material feeding rules.

4. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: After the planner confirms and adjusts the product cycle requirements through the urgent delivery date input window, the MES system automatically schedules each process according to the pre-set production scheduling trigger rules and in combination with the data processing system; The production schedule is officially implemented after manual review and confirmation; AGV automatically transports according to the handling instructions issued by the system.

5. The method for efficient and intelligent production scheduling of circuit boards according to claim 1, characterized in that: The MES system analyzes the data collected by the production scheduling management module and puts it on the dashboard; Overdue alarm rules are set in the production scheduling management module to issue color warnings for products that fail to meet the production schedule.

6. The method for efficient and intelligent production scheduling of circuit boards according to claim 1, characterized in that: Basic data and standards are divided into five categories: basic equipment data, production cycle, WIP balance, production calendar and team personnel; Equipment basic data includes: equipment theoretical capacity, equipment quantity, equipment process parameters, equipment process capability, and equipment status; Production cycle data includes: standard production cycle, process production cycle control, dwell time, preparation time, production time, inspection time, and transportation time; WIP balance includes: standard process WIP balance, online WIP management, equipment capacity, and temporary storage capacity; The production calendar includes: material feeding plan and process maintenance plan.

7. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: Feeding rules include: package generation rules, order matching rules, package replacement rules, and feeding quantity rules.

8. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: The production scheduling rules include: production scheduling trigger rules, production scheduling sequence rules, machine selection rules, and excess rules.

9. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: Data analysis includes: order structure analysis, order pre-investment rate details table, output achievement rate analysis, planned delivery rate analysis, production cycle analysis of each process, and online inventory analysis of the process.

10. The method for efficiently and intelligently scheduling production of circuit boards according to claim 1, characterized in that: Kanban diagrams include: production Kanban, analysis Kanban, resource compliance diagram, order Ganze diagram, and product inventory load diagram.

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