CN118350583A

CN118350583A - Production scheduling method, system, equipment and medium

Info

Publication number: CN118350583A
Application number: CN202410451500.0A
Authority: CN
Inventors: 苏谢明; 吴建民; 林雪梅; 刘希迅; 王川; 彭娜; 李洋; 鲁斋; 刘贵豪
Original assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd; Beijing Zhongxiangying Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Beijing BOE Technology Development Co Ltd; Beijing Zhongxiangying Technology Co Ltd
Priority date: 2024-04-15
Filing date: 2024-04-15
Publication date: 2024-07-16

Abstract

The disclosure provides a production scheduling method, a system, equipment and a medium, which belong to the technical field of display, and aim to schedule a rear-section product first, schedule a front-section product based on a scheduling plan obtained by scheduling the rear-section product, and avoid the problem that the inventory of the front-section product is not matched with the order of the rear-section product, and the method comprises the following steps: in response to receiving a scheduling demand for a front-end product, acquiring order information of a plurality of orders for a rear-end product, material supply information of the rear-end product, and a first capacity of a first factory for producing the rear-end product; scheduling production of the rear-section product based on the material supply information, the order information and the first capacity to obtain a first scheduling plan; and scheduling the production of the front-end product based on the first scheduling plan and the second capacity of a second factory for producing the front-end product to obtain a second scheduling plan.

Description

Production scheduling method, system, equipment and medium

Technical Field

The disclosure relates to the field of display technologies, and in particular, to a production scheduling method, a production scheduling system, a production scheduling device and a production scheduling medium.

Background

An advanced planning and Scheduling (ADVANCED PLANNING AND Scheduling, APS) system is a system that automatically generates a factory production plan and production schedule using an optimization algorithm, taking into account resource constraints such as materials, equipment, personnel, capacity, customer demand, transportation, etc.

The APS system can acquire data of sales demands, production elements of factories (e.g., equipment, people, materials, etc.), and the like, and use the data for scheduling. However, APS systems still fail to address the problem of having a stagnant inventory of front end products and being unable to supply back end products. Taking the production and the production of the display module as an example, the display panel needs to be produced first, and then the display panel is assembled to obtain the display module, and in the process, the problem that the production of the display panel is not matched with the requirement of the display module often exists.

Disclosure of Invention

Based on the background technology, the disclosure provides a production scheduling method, a production scheduling system, production scheduling equipment and production scheduling media.

In a first aspect of the present disclosure, a method for scheduling production is provided, comprising:

In response to receiving a scheduling demand for a front-end product, acquiring order information of a plurality of orders for a rear-end product, material supply information of the rear-end product, and a first capacity of a first factory for producing the rear-end product; wherein the rear-section product is a product after the front-section product is continuously produced;

scheduling production of the rear-section product based on the material supply information, the order information and the first capacity to obtain a first scheduling plan;

Scheduling the production of the front-end product based on the first scheduling plan and the second capacity of a second factory for producing the front-end product to obtain a second scheduling plan; wherein the second scheduling plan includes: the time at which the second factory begins to produce the lead product, the expected delivery time of the lead product, and the delivery quantity of the lead product.

Optionally, the first schedule includes a first time when the first factory starts to manufacture the back-end product, and the scheduling the production of the front-end product based on the first schedule and a second capacity of a second factory that produces the front-end product to obtain a second schedule includes:

Taking the first time as the delivery deadline of the front-end product;

And scheduling the production of the front-end product based on the first scheduling plan by taking the delivery cut-off time and the second capacity as constraints to obtain the second scheduling plan.

Optionally, the scheduling the production of the front-end product based on the first scheduling plan with the delivery deadline and the second capacity as constraints, to obtain the second scheduling plan includes:

Acquiring a buffer time of each second factory based on the product attribute of the rear-stage product and the current inventory of the front-stage product, wherein the buffer time represents the time when the second factory can put into production of the front-stage product in advance;

and scheduling the production of the front-end product based on the first scheduling plan and the buffer time by taking the delivery cut-off time and the second capacity as constraints to obtain a second scheduling plan.

Optionally, the scheduling the production of the front-end product based on the first scheduling plan with the delivery deadline and the second capacity being constraint, to obtain the second scheduling plan includes:

Taking the delivery deadline and the second capacity as constraints, and scheduling the production of the front-end product based on the first scheduling plan for multiple scheduling;

and screening the second scheduling plan from a plurality of scheduling plans obtained by the scheduling.

Optionally, the delivering cut-off time and the second capacity are used as constraints, and the production of the front-stage product is scheduled for multiple kinds of production based on the first scheduling plan; and screening the second schedule from a plurality of schedule plans obtained from a plurality of the schedules, comprising:

Scheduling the production of the front-end product based on the first scheduling plan with the delivery deadline and the second capacity as constraints to obtain the second scheduling plan;

wherein the optimization objective of the first linear plan includes at least one of delivery satisfaction, delayed delivery rate, delivery timing rate;

The delivery satisfaction represents the ratio of the delivery quantity of the front-stage products to the order demand quantity of the rear-stage products, the delayed delivery rate represents the ratio of the quantity of the front-stage products which are delivered in a delayed manner to the order demand quantity, and the delivery timing rate represents the ratio of the quantity of the front-stage products which are delivered on time to the order demand quantity.

Optionally, the optimization objective further includes: calculating a limiting duration, wherein the calculating the limiting duration characterizes the time-consuming duration for performing the linear programming.

Optionally, the method further comprises:

Determining a first priority corresponding to each order based on user information of a plurality of order placing users to which the orders belong, wherein the first priority is used for representing the risk degree of the change of the orders;

The step of scheduling the production of the front-end product based on the first scheduling plan and the second capacity of the second factory for producing the front-end product to obtain a second scheduling plan includes:

And scheduling the production of the front-end product based on the first scheduling plan, the second capacity and the first priority of each order to obtain a second scheduling plan.

Optionally, the scheduling production of the back-end product based on the material supply information, the order information and the first capacity to obtain a first scheduling plan includes:

Obtaining limit information related to the production of the rear-end products, wherein the limit information comprises a first priority and/or factory transferring time corresponding to the first factory, and the first priority characterizes the product yield and/or production efficiency of the rear-end products produced by the first factory; the plant transit time characterizes a transit time of the back-end product between the first plants;

And scheduling the production of the rear-stage product based on the limit information, the material supply information, the order information and the first capacity to obtain the first scheduling plan.

Optionally, the scheduling production of the back-end product based on the limit information, the material supply information, the order information, and the first capacity includes:

Acquiring the stock quantity of the currently-stocked materials, the supply quantity of the subsequently-supplied materials and the supply time based on the material supply information;

Producing a material constraint based on the inventory quantity, the supply quantity, and the supply time;

Taking the limiting information, the material limiting conditions and the first yield as constraints, and carrying out second linear programming on the production of the rear-stage product based on the order information to obtain the first scheduling plan;

Wherein the optimization objective of the second linear programming comprises: the delivery quantity of the back-end product delivered is greater than or equal to the demand quantity of the order.

Optionally, the process of obtaining the first capacity includes:

acquiring beat time of equipment of the first factory and utilization rate of the equipment;

And acquiring the first productivity based on the takt time, the equipment utilization rate and the daily production plan of the first factory.

Optionally, the method further comprises:

Acquiring operation information of the second factory in a next production period of a current production period, and storing the inventory requirement of the front-end products in the next production period;

after obtaining the second scheduling plan, the method further comprises:

and adjusting the second scheduling plan based on the operation information and/or the inventory requirement to obtain a third scheduling plan.

Optionally, the second schedule further includes a first delay amount by which the lead product of each category is delayed for a period of time; the step of adjusting the second scheduling plan based on the operation information and/or the inventory requirement to obtain a third scheduling plan includes:

Acquiring target front-end products of which the first delay quantity is smaller than a preset quantity, and a target second factory for producing the target front-end products;

And adjusting the schedule belonging to the target second factory in the second schedule plan based on the operation information corresponding to the target second factory in the operation information and/or the inventory demand corresponding to the target front-end product in the inventory demand, so as to obtain the third schedule plan.

Optionally, the second schedule further includes a first delay amount by which the lead product of each category is delayed for a period of time; after the second scheduling plan is obtained, the method further includes:

Determining, based on the first delay amount, a lead product at risk of delivery;

adjusting the first scheduling plan based on the risky lead product;

and re-scheduling the production of the front-end product based on the adjusted first scheduling plan and the second capacity to obtain a fourth scheduling plan.

Optionally, the method further includes, after the re-scheduling the production of the front-end product based on the adjusted first schedule and the second capacity to obtain a fourth schedule:

Determining whether the fourth schedule is better than the second schedule based on the first amount of delay and a second amount of delay for which each category of prior product in the fourth schedule is delayed for a period of time;

If yes, executing the front-end product based on the risk, and adjusting the first scheduling plan; a step of re-scheduling the production of the front-end product based on the adjusted first scheduling plan and the second capacity until the second scheduling plan is superior to the re-scheduled fourth scheduling plan, and a fourth scheduling plan after the previous re-scheduling is obtained;

If not, outputting alarm information based on the front-stage product with risk.

Optionally, the adjusting the first schedule based on the pre-existing product at risk includes:

Determining a target back-end product to be adjusted based on the front-end product with risk, and performing distribution adjustment on the target back-end product, wherein the distribution adjustment comprises: adjusting at least one of a production plant to which the target end product is allocated, and the number of the target end product allocated per the production plant; wherein the production plants include a first plant that produces the target end product, a plant that has a line overlap with the first plant, and a plant that replaces the end product;

And re-scheduling the production of the rear-stage product based on the distribution-adjusted result, the material supply information, the order information and the first capacity.

The production scheduling method comprises the steps of responding to receiving scheduling demands for front-stage products, obtaining order information of a plurality of orders for rear-stage products, material supply information of the rear-stage products and first production capacity of a first factory for producing the rear-stage products; wherein the rear-section product is a product after the front-section product is continuously produced; scheduling production of the rear-section product based on the material supply information, the order information and the first capacity to obtain a first scheduling plan; scheduling the production of the front-end product based on the first scheduling plan and the second capacity of a second factory for producing the front-end product to obtain a second scheduling plan; wherein the second scheduling plan includes at least: the time at which the second factory begins to produce the lead product, the expected delivery time of the lead product, and the delivery quantity of the lead product;

Therefore, the first scheduling plan for scheduling the production of the rear-section product is obtained according to the order information, the material supply information and the first energy production of the first factory, the second scheduling plan for scheduling the production of the front-section product is obtained according to the first scheduling plan and the productivity of the front-section product, the front-section product can be produced according to the first scheduling plan of the rear-section product, the production of the front-section product can be matched with the demand of the rear-section product, and the problem of stock stagnation caused by the production of the front-section product in stock can be avoided.

In a second aspect of the present disclosure, a production scheduling system is provided, the system comprising a first scheduling module and a second scheduling module, wherein:

The second scheduling module is used for responding to the scheduling of the front-stage products and indicating the first scheduling module to schedule the products;

the first scheduling module is used for acquiring order information of a plurality of orders for the rear-section products, material supply information of the rear-section products and first production energy of a first factory for producing the rear-section products based on the indication of the second scheduling module; and scheduling production of the back-end product based on the material supply information, the order information and the first capacity to obtain a first scheduling plan; wherein the rear-section product is a product after the front-section product is continuously produced;

The second scheduling module is further used for scheduling the production of the front-end product based on the first scheduling plan and the second capacity of a second factory for producing the front-end product to obtain a second scheduling plan; wherein the second scheduling plan includes at least: the time at which the second factory begins to produce the lead product, the expected delivery time of the lead product, and the delivery quantity of the lead product.

Optionally, the system further comprises:

the negative feedback module is respectively connected with the first scheduling module and the second scheduling module and is used for determining a front-stage product with delivery risk based on the first delay quantity; sending the front-end product with risk to the first scheduling module;

The first scheduling module is further configured to adjust the first scheduling plan based on the front-end product with risk;

The second scheduling module is further configured to re-schedule production of the front-end product based on the adjusted first scheduling plan and the second capacity, to obtain a fourth scheduling plan.

Optionally, the system further comprises:

the inventory strategy module is connected with the second scheduling module and is used for acquiring the operation information of the second factory, and in the next production period of the current production period, the inventory demand of the front-end product is sent to the second scheduling module;

and the second scheduling module is used for adjusting the second scheduling plan based on the operation information and/or the inventory requirement to obtain a third scheduling plan.

Based on the same inventive concept, the present disclosure further provides an electronic device, including a memory, a processor, and a computer program stored on the memory, where the processor executes the computer program to implement the steps in the production scheduling method described in the first aspect.

Based on the same inventive concept, the present disclosure also provides a computer-readable storage medium storing a computer program for causing a processor to execute the production scheduling method as described in the first aspect above.

The foregoing description is merely an overview of the technical solutions of the present disclosure, and may be implemented according to the content of the specification in order to make the technical means of the present disclosure more clearly understood, and in order to make the above and other objects, features and advantages of the present disclosure more clearly understood, the following specific embodiments of the present disclosure are specifically described.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the related art, a brief description will be given below of the drawings required for the embodiments or the related technical descriptions, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to the drawings without any inventive effort for a person of ordinary skill in the art. It should be noted that the scale in the drawings is merely schematic and does not represent actual scale.

FIG. 1 is a flow chart illustrating steps of a method for scheduling production according to an embodiment of the present disclosure;

FIG. 2 illustrates a flow chart of a production scheduling method provided by an embodiment of the present disclosure;

fig. 3 shows an order information schematic diagram of the display module in the present embodiment;

fig. 4 shows a P-type demand schematic diagram of the display module in this embodiment;

FIG. 5 shows a schematic diagram of data required for linear programming in this embodiment;

FIG. 6 is a diagram showing the material supply information in the present embodiment;

FIG. 7 is a schematic diagram showing the decomposition of a display module order according to material supply information in the present embodiment;

FIG. 8 is a schematic diagram showing a first schedule corresponding to the production of the display module in the present embodiment;

FIG. 9 is a flowchart showing a method for determining the time taken for investment and the time for delivery of the panel production in the present embodiment;

FIG. 10 is a schematic view showing the characteristic values of the schedule of the panel production in the present embodiment;

FIG. 11 is a diagram showing a second schedule corresponding to the panel production in the present embodiment;

FIG. 12 is a schematic diagram of a production scheduling system according to an embodiment of the disclosure.

Detailed Description

In order that the above-recited objects, features and advantages of the present disclosure will become more apparent, a more particular description of embodiments of the disclosure will be rendered by reference to the appended drawings, which together with the appended drawings illustrate embodiments of the disclosure, wherein it is obvious that the described embodiments are some, but not all, of the embodiments of the disclosure. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.

In the related art, from the manufacturing to the completion of the display module, the manufacturing of the panel is generally realized by a panel factory in the actual production process, and the completion of the display module finished product is realized by a module factory. At present, the production schedule of the display module is formulated as a medium-long term plan for order holiday reply and guiding a medium-long term material purchase plan, and the panel manufacturing industry is put into the module manufacturing from array engineering to complete, and a production period of at least one month is required. When the panel factory is scheduled, the production capacity is limited mainly through the photoetching process, and when the module factory is scheduled, the production capacity is mainly realized through factors such as order exchange period, material limitation, capacity limitation and the like, so that the production of the display panel is not matched with the requirement of the display module.

In view of this, the disclosure proposes a production scheduling method, system, device and medium, by scheduling production for the post-stage product first, and then determining the scheduling plan of the front-stage product according to the scheduling plan of the post-stage product, the scheduling of the post-stage product is strongly related to the scheduling of the front-stage product, so as to avoid the problem of stagnation in stock caused by stock-based scheduling of the front-stage product.

First, technical terms used in the present disclosure will be briefly explained:

And the scheduling is used for converting the product requirements into specific production plans, and the scheduling is carried out on the production time and the production quantity of the products by integrating the information of the production process, the requirements of the products and the like, so that reasonable product supply is realized.

The production scheduling requirement characterizes the purpose of production scheduling, namely, the goal that the production plan needs to reach, if the production scheduling requirement is to guarantee the delivery deadline, the production planning is arranged by taking the supply of the product at the delivery deadline as a standard in the production scheduling process.

Scheduling plans, which are refined production schedules obtained by optimizing the production plans and actual demands, comprise the starting production time, the ending production time, the production quantity, the production priority and the like of the product, and can be repeatedly adjusted in the production process.

Next, a detailed description is made of a production scheduling method, system, device and medium provided in the present disclosure:

Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a step of a production scheduling method according to an embodiment of the disclosure, and as shown in fig. 1, the method specifically includes:

S101, in response to receiving the scheduling requirement of the front-end product, order information of a plurality of orders for the rear-end product, material supply information of the rear-end product and first production capacity of a first factory for producing the rear-end product are acquired.

Wherein the rear-stage product is a product after continuous production of the front-stage product. The front-stage product is a display panel, and the rear-stage product is a display module obtained by continuously producing the display panel. The display module may be an LCD (Liquid CRYSTAL DISPLAY), an LED (Light-Emitting Diode) display module, an OLED (Organic Light-Emitting Diode) display module, or the like.

Specifically, in the process of scheduling the front-stage product, the exchange period of the rear-stage product also has an influence on the front-stage product, so that the scheduling of the rear-stage product can be performed firstly, then the scheduling of the front-stage product is determined according to the scheduling of the rear-stage product, and the production of the rear-stage product can be scheduled firstly according to factors such as material limitation, capacity limitation and the like. The material supply information can be used for determining material limitation in the production process of the post-stage product, and the capacity limitation of the post-stage product is determined according to the first capacity of a first factory for producing the post-stage product.

In this embodiment, the order information includes at least a required quantity of the product and a delivery period of the product, the material supply information includes a stock quantity of the material, a supply time of the material of each subsequent batch, and a supply quantity, and the first capacity may be determined according to a production plan of the first factory, the number of devices, and a capacity of each device. The material supply information may be material supply information of a key material for producing the post-stage product, where the key material characterizes a material having a key influence on the post-stage product production process. For example, the rear product is a display module, the driving chip in the module is a material to be purchased and is a necessity for producing the display module, and the material supply information of the driving chip can be used as the material supply information required in the production schedule of the rear product.

In an embodiment, the order information may further include priority information of the order, where the priority information may be obtained by evaluating a risk level of the order, where the risk level may represent a probability of change in a required quantity of the order after the order is placed, the greater the probability, the higher the risk, the smaller the probability, and the lower the risk. If the probability of change of the demand quantity of the order A for the product is lower, and the probability of change of the demand quantity of the order B for the product is higher, the priority of the order A can be set higher than that of the order B, so that the production time of the order A can be advanced in the production scheduling process, and the production time of the order B is close to the delivery deadline, thus, even if the demand quantity of the subsequent order B for the product is reduced, the adjustment of the production scheduling plan is facilitated in the production process of the product required by the order B, and the problem of stock stagnation possibly caused by the priority treatment of the order B is avoided.

In another embodiment, the first factories for producing the post-stage products may include a plurality of first factories, and the priority order of the plurality of first factories may be obtained, where the priority order may be determined according to the yield of the post-stage products produced by the plurality of first factories, may be determined according to the production efficiency of the post-stage products produced by the plurality of first factories, and may be determined according to the yield and the production efficiency of the post-stage products. The product yield of the rear-section product can be improved by adopting the yield to set the priority, the defect reworking condition of the product is reduced, the overall production efficiency of the rear-section product can be improved by adopting the efficiency to set the priority, the condition of delayed delivery can be reduced, and the production efficiency can be improved while the quality of the product is ensured by adopting the yield and the production efficiency to jointly set the priority.

S102, scheduling production of the rear-end products based on the material supply information, the order information and the first capacity to obtain a first scheduling plan.

It can be appreciated that the production time of the front-end product may affect the production scheduling of the rear-end product, it may be assumed that the front-end product supply may completely meet the production requirement of the rear-end product, and further, the problem of the front-end product supply may not be considered when the production of the rear-end product is scheduled, so that the first scheduling plan may be obtained directly according to the material supply information, the order information and the first production capacity of the first factory that are obtained before.

The first schedule may include a time when the back-end product starts to be put into production, a delivery time of the back-end product, a production quantity of the back-end product, and the like. For example, the delivery time may be determined based on the order information, and then the time at which each order starts to be put into production may be determined based on the delivery time, the order demand quantity, and the first capacity.

In an embodiment, when the production of the rear-stage product is scheduled, the material limitation and the capacity limitation can be used as constraint conditions, the production of the rear-stage product is linearly planned, and the production quantity of the rear-stage product in the first scheduling plan can meet the requirements of each order through the linear planning.

S103, scheduling the production of the front-end product based on the first scheduling plan and the second capacity of the second factory for producing the front-end product to obtain a second scheduling plan.

Wherein the second scheduling plan includes at least: the time at which the second factory begins to produce the lead product, the expected delivery time of the lead product, and the delivery quantity of the lead product.

Specifically, the time of putting the front-end product into production in the first scheduling plan may be taken as the delivery time of the rear-end product, so that the production of the front-end product can be scheduled according to the delivery time and the productivity; the delivery quantity and delivery time of the front-end products in the first scheduling plan can be used as the basis for scheduling the production of the rear-end products, and the basis can be used as the guidance of the second scheduling plan.

In an embodiment, if there is a situation that the front-end product is also sold as a finished product, the demand of the panel in the first scheduling plan and the demand of the panel in the sales order of the front-end product may be integrated before the front-end product is scheduled for production, so as to obtain a total demand order of the front-end product, and the production of the front-end product may be scheduled according to the integrated total demand order.

By adopting the production scheduling method provided by the embodiment of the disclosure, the production scheduling of the rear-stage product is firstly performed to obtain the first scheduling plan, then the second scheduling plan for performing the production scheduling of the front-stage product is obtained according to the first scheduling plan, and the production scheduling of the front-stage product is limited by the production scheduling of the rear-stage product, so that the problem of stock stagnation caused by mismatching of the production requirements of the front-stage product and the rear-stage product due to the production of the front-stage product according to the stock water level can be avoided.

In an embodiment, the production of the rear-end product may be implemented by a plurality of factories, and the production efficiency of the factories, the yield of the product and the transfer time between factories need to be considered, and these factors all affect the process of producing the rear-end product, and the process of obtaining the first schedule may specifically be the following process:

firstly, obtaining limit information related to the production of a later-stage product, wherein the limit information Bao Shudi is a second priority and/or a factory transfer time corresponding to a factory, and the second priority represents the product yield and/or the production efficiency of the later-stage product produced by the first factory; the factory transferring time characterizes the transferring duration of the later-stage products among the first factories; and then, scheduling the production of the rear-stage product based on the limit information, the material supply information, the order information and the first yield to obtain a first scheduling plan.

The second priority may represent a product yield of the first factory production back-end product, may represent a production efficiency of the first factory production back-end product, and may also be a product yield and a production efficiency of the first factory production back-end product. Under the condition that the second priority is the product yield of the first factory production back-end products, the obtained first scheduling plan can prioritize the first factory production back-end products with higher product yield, and the quality of the produced back-end products is ensured; under the condition that the second priority is the production efficiency of the first factory for producing the rear-section products, the rear-section products can be ensured to be delivered on time to the greatest extent, and the customer satisfaction is improved; under the condition that the second priority is the product yield and the production efficiency of the post-production products of the first factory, the product yield and the production efficiency of the products can be considered for production scheduling, and under the condition that the punctual rate of delivery is improved, the product quality is ensured.

The factory transferring time refers to the transferring time of the post-stage products to the first factory belonging to the internal factory when the post-stage products are required to be produced by the foundry (the factory belonging to the external jurisdiction in the first factory), and the transferring time also affects the delivery of the post-stage products, so that the transferring time of the post-stage products between the first factories can be added into the limiting information, and the transferring time is used as a limiting factor for limiting the delivery.

It will be appreciated that the supply of material affects the production time and quantity of the subsequent product, and that the scheduling process may be limited according to the material supply information, so that the production of the subsequent product can be matched to the material supply arrangement, and this process may specifically be:

Firstly, acquiring the stock quantity of the currently-stock materials, the supply quantity of the subsequently-supplied materials and the supply time based on the material supply information; then, based on the stock quantity, the supply quantity, and the supply time, producing a material limitation condition; then, taking the limiting information, the material limiting condition and the first production energy as constraints, and carrying out second linear programming on the production of the rear-section product based on the order information to obtain a first scheduling plan; wherein the optimization objective of the second linear programming comprises: the delivery quantity of the post-delivery product is greater than the demand quantity of the order.

The stock quantity of the materials indicates the quantity of the products at the later stage which can be produced immediately, and the production of the products at the later stage depends on the supply time of the materials at the later stage, so that the stock quantity of the materials at present, the supply quantity of the materials at the later stage and the supply time can be taken as limiting conditions, and a reasonable first scheduling plan can be arranged according to the purchasing plan of the materials conveniently.

In this embodiment, in order to achieve timely delivery of the rear-end products, the delivery result may be optimized by adopting linear programming in the delivery process, and the delivery quantity of the rear-end products delivered is greater than or equal to the required quantity of the order form and is set as an optimization target, so that the optimized first scheduling plan can ensure that the delivery quantity meets the order form requirement. The ratio of the quantity of the on-time delivery to the order demand quantity can be used as an optimization target, so that the production according to the first scheduling plan can ensure the timeliness of the delivery as much as possible while the delivery quantity meets the order demand.

It should be noted that, when the production of the later-stage product is scheduled, the first capacity of the first factory needs to be determined, so as to determine, according to the delivery deadline and the first capacity, the time when the later-stage product is put into production at the latest, where the method for obtaining the first capacity specifically includes:

Firstly, acquiring beat time of equipment of a first factory and utilization rate of the equipment; then, a first capacity is obtained based on the tact time, the equipment utilization, and the daily production plan of the first plant.

The beat time represents the interval time between two identical products, namely the average time required by completing one product, and the equipment utilization rate represents the actual running efficiency of the equipment, which can be determined according to the ratio of the actual product quantity produced to the theoretical product quantity in a period of time, and the quantity of the products in the later section of the daily production of the first factory, namely the first capacity, can be obtained according to the beat time, the equipment utilization rate and the daily production plan of the first factory.

Next, a description is given of how to obtain the second schedule:

In an example, the first schedule may provide guidance for scheduling in the second schedule, and the first schedule may include a first time when the first factory begins to manufacture the back-end product, where the specific process of scheduling the production of the front-end product may be to first take the first time as a delivery deadline for the front-end product; and then, taking the delivery deadline and the second capacity as constraints, and scheduling the production of the front-end product based on the first scheduling plan to obtain a second scheduling plan.

The first time when the first factory starts to manufacture the rear-section product can be used as the delivery deadline of the front-section product, in practice, the delivery deadline can be represented in a date form, so that the rear-section product can be manufactured according to the time planned by the first scheduling plan, and further, the rear-section product can be delivered on time.

In an embodiment, the production of the front-end product is directly scheduled according to the delivery deadline and the second capacity, so that the situation that the front-end product is not timely produced due to an emergency situation may not be dealt with, and thus, the rear-end product is not timely produced easily, and the problem of delayed delivery is caused.

To avoid such problems, the production time of the front-end product may be advanced, specifically, the process may be to obtain a buffer time of each second factory, which characterizes the time that the second factory may be put into production of the front-end product in advance, based on the product attribute of the rear-end product and the current inventory of the front-end product; and then, taking the delivery cut-off time and the second productivity as constraints, and scheduling the production of the front-end product based on the first scheduling plan and the buffer time to obtain a second scheduling plan.

The current stock of the front-stage product can be determined according to the material supply information, and the demand of the front-stage product can be determined through the current stock of the front-stage product, so that the buffer time can be longer under the condition that the demand of the front-stage product is higher, and the production demand of the rear-stage product can be met; under the condition of lower demand of the front-end products, the buffering time can be shorter, so that the condition of stock stagnation caused by early production of the front-end products is avoided. The product attribute may be a product type of the rear-end product or a product model of the rear-end product, and the second factories for producing the front-end product can be determined according to the product attribute, so that the buffer time of each second factory can be determined.

Taking a production display module as an example, there are different types of display modules such as an LCD display module, an LED display module, an OLED display module, etc., and different types of display modules have different panel requirements, such as an LED display module requires an LED display panel, an LCD display module requires an LCD display panel, and an OLED display module requires an OLED display panel, then the corresponding panel factories can be determined according to the types of the display modules, and then the amount buffer time of each panel factory can be determined according to the stock quantity of the different types of display panels.

In an embodiment, the delivery deadline can be adjusted, the target time of delivery is obtained through the preset buffer period and delivery deadline, and then the earliest input time of the front-stage product is determined according to the target time, the production period and the buffer time, so that the production of the front-stage product is started at the earliest input time, and enough time is reserved for possible emergency conditions to change the production result, thereby reducing the problem that normal delivery cannot be performed due to the emergency conditions.

In a further example, considering that there may be multiple results of scheduling production of a prior product based on a first scheduling plan, the multiple results may be screened to obtain a suitable second scheduling plan; the specific process comprises the following steps: firstly, taking delivery deadline and second productivity as constraints, and carrying out various scheduling on the production of the front-end products based on a first scheduling plan; and then, screening a second scheduling plan from a plurality of scheduling plans obtained by various scheduling.

When the production of the front-stage product is carried out in a plurality of production scheduling modes, the production scheduling mode can be a production scheduling mode in the related art, a plurality of production scheduling plans can be obtained through the plurality of production scheduling modes, and then a second scheduling plan is screened out from the plurality of production scheduling plans.

In this embodiment, the screening may be performed according to the delivery time obtained by delivery, and the delivery result with the highest delivery time rate may be screened out as the second scheduling plan, or the screening may be performed according to the delivery amount obtained by delivery, and the delivery result with the highest delivery amount may be screened out as the second scheduling plan, or the screening may be performed according to the number of orders with delayed delivery, and the scheduling result with the least number of orders with delayed delivery may be used as the second scheduling plan.

In an example, the scheduling optimization process may be implemented by linear programming, and the optimal scheduling plan may be obtained by setting an optimization objective of the linear programming, where the specific process may be to perform a first linear programming on the production of the front-end product based on the first scheduling plan with the delivery deadline and the second capacity as constraints, to obtain the second scheduling plan.

Wherein the optimization objective of the first linear plan includes at least one of delivery satisfaction, delivery delay rate, delivery timing rate; wherein, the delivery satisfaction represents the ratio of the demand of the front-stage products at the delivery quantity station, the delay delivery rate represents the ratio of the quantity of the front-stage products to the demand of the order, and the delivery time represents the ratio of the quantity of the front-stage products to the demand of the order.

Specifically, the delivery deadline and the second capacity are taken as constraints, and the production of the front-end product is scheduled based on the first scheduling plan to obtain a scheduling result, so that the scheduling is optimized by adopting the linear programming to obtain a better second scheduling plan.

The delivery satisfaction degree may be used as an optimization target, the delayed delivery rate may be used as an optimization target, the delivery time rate may be used as an optimization target, the delivery satisfaction degree and the delivery time rate may be used as an optimization target, and the delivery satisfaction degree, the delayed delivery rate and the delivery time rate may be used as an optimization target. For example, when the delivery satisfaction, the delayed delivery rate and the delivery time rate are taken as optimization targets together, weight values may be set for the delivery satisfaction, the delayed delivery rate and the delivery time rate, respectively, so as to optimize the second schedule that satisfies the requirements, for example, if the delivery time rate is taken as a target, the weight of the delivery time rate may be increased, and if the weight values of the delivery satisfaction and the delayed delivery rate are smaller, the delivery time rate is high, and at the same time, the delivery satisfaction and the second schedule that reduces the delayed delivery rate may be increased as much as possible.

For example, the delivery satisfaction may be represented by a ratio of the delivery quantity of the front-stage product to the demand quantity of the rear-stage product, such as 4500 for the delivery quantity of the front-stage product and 5000 for the demand quantity of the rear-stage product, and 90% for the delivery satisfaction. The delayed delivery rate may be represented by a ratio of the number of front-end products and the order demand of the front-end products, where the order demand may be a sum of the demand of the back-end products and the sales of the front-end products, and if the delayed delivery of the front-end products is 500 as a result of the scheduling, and the order demand is 10000, the delayed delivery rate is 5%. The delivery time rate may be represented by a ratio of the number of the front-end products and the order demand of the on-time delivery, wherein the order demand may be the sum of the demand of the back-end products and the sales of the front-end products, and if the delivery result is 5000 on-time delivery of the front-end products, and the order demand is 7500, the delivery time rate is 80%. It will be appreciated that the higher the delivery satisfaction and delivery timing rate, the lower the delivery delay rate, the better the optimized second schedule, enabling on-time delivery with a large portion of the delivery volume meeting the order requirements.

When the linear programming is adopted to optimize the production scheduling result, the conditions such as production time, capacity consumption, downtime, production factory, upper yield limit and the like need to be considered, so that the optimization result can accord with the actual situation.

In an example, when the linear programming is used to obtain the second scheduling plan, a calculation limit duration may also be added to the optimization objective, where the calculation limit duration characterizes a time-consuming duration for performing the first linear programming. The method is characterized in that when the linear programming model is adopted to acquire the second programming plan, under the condition that the calculation time length is long, after calculation is continued, the optimization rate is small, namely the programming plan is not obviously optimized, the time length for carrying out the first linear programming can be controlled within a certain time, and overlong calculation time length is avoided.

It will be appreciated that there is a possibility of variation in the order for the back-end product, such as an increase or decrease in the required quantity of the back-end product in the order, which may result in the production of the front-end product to be added to the inventory, and thus in the problem of stagnant inventory, and that a risk level may be set for each order, and the possibility of variation in the order may be determined according to the risk level. The specific process can be as follows:

Firstly, determining a first priority corresponding to each order based on user information of a user placing the order to which each order belongs, wherein the first priority is used for representing the risk degree of change of the order; then, the production of the front-end product is scheduled based on the first schedule, the second capacity and the first priority of each order, and a second schedule is obtained.

In this embodiment, the higher the first priority is, the lower the risk of order change is, and the order sequence of each order may be determined according to the order from the higher to the lower of the first priority, and the second scheduling plan is obtained according to the order sequence of each order. Therefore, orders which are difficult to change can be produced first, and orders which are easy to change can be produced after the orders are produced, so that the problem that the stock accumulation of the products at the front stage is caused by the change of the orders after the production of the products at the front stage can be reduced.

In an embodiment, the second schedule may be adjusted according to market prediction or actual operation requirements of the factory after the second schedule is obtained, and the specific adjustment process may be:

Firstly, acquiring operation information of a second factory in a next production period of a current production period and inventory requirement of a front-end product in the next production period; then, the second scheduling plan is adjusted based on the operation information and/or the inventory requirement, and a third scheduling plan is obtained.

The production period may be based on the month, and then the current production period may represent the current month, and the next production period may represent the next month; the production period can also be based on the quarter, then the current production period represents the current quarter, and the next production period represents the next quarter; the operational information may include an operational plan of the plant, an expected replacement of equipment for a next production period, or an ongoing maintenance of equipment, etc.

Specifically, the adjustment of the second scheduling plan may be implemented based on the operation information, may be implemented based on the inventory requirement, or may be implemented based on both the operation information and the inventory requirement.

When the second scheduling plan is adjusted based on the inventory demand, the second scheduling plan can be adjusted by combining the production capacity of the second factory, the quantity of orders in each production period is different, the demand quantity of products in the orders is different, the surplus production capacity of part of production periods possibly exists, and the shortage of the production capacity of part of production periods is a problem, so that the scheduling plan can be adjusted by combining the current production period and the next production period, and the maximum utilization of the production capacity in each production period is ensured. For example, the current month of the front-end product demand is 1000, the next month of the front-end product demand is 4000, and the economic batch of the first factory is 5000, the second schedule may be adjusted, and the next month of the front-end product is adjusted to the current month for production, so as to ensure the maximization of the productivity.

Under the condition that the second scheduling plan is adjusted based on the operation information, whether equipment cannot be used in the next production period or not is determined according to the operation information, if the equipment cannot be used, the second scheduling plan can be adjusted by combining the capacity information of the current production period, and the requirement of the next production period is brought into the current production period to finish. For example, if the next quarter is determined in the present quarter and equipment modification exists in the second plant, then the partial order requirements for the next quarter may be adjusted to the present quarter to complete.

And under the condition that the second scheduling plan is adjusted based on the operation information and the inventory demand, the two kinds of information can be combined to determine whether the front-stage products of the next production period need to be produced in advance in the current production period so as to produce the quantity of the front-stage products, and the front-stage products are added into the consideration of the second scheduling plan to adjust and obtain the third scheduling plan, so that the third scheduling plan can meet part of the demands of the next production period under the condition that the demands of the current production period are met, the maximization of the productivity of a factory is ensured, and the problem that the products cannot be delivered on time due to the factory operation planning is reduced.

It should be noted that, when the second schedule is adjusted, it needs to be ensured that the front-stage product produced in the current production period can meet the production requirement of the rear-stage product, and then the second schedule may further include a first delay amount of each type of front-stage product delayed for the intersection period, where at this time, it may be determined whether the second factory can realize the advanced production of the front-stage product required in the next production period according to the delay amount. The process specifically can be as follows:

firstly, acquiring target front-end products with a first delay quantity smaller than a preset quantity and a second factory for producing the target front-end products; and then, adjusting the schedule belonging to the target second factory in the second schedule plan based on the operation information corresponding to the target second factory in the operation information and/or the inventory demand corresponding to the target front-end product in the inventory demand, so as to obtain a third schedule plan.

Considering that the front-stage products have multiple types and different production of each type, the type of the target front-stage product with the remaining production time period can be determined first, then the target second factory for producing the target front-stage product of the type is determined, and the part of the target second factory in the second scheduling plan can be adjusted, so that the computational complexity in the adjustment process is reduced.

It will be appreciated that the number of products to be delivered is reduced as much as possible during the production schedule, so that after the second schedule is obtained, the second schedule can be adjusted to reduce the number of front products to be delivered according to the number of delays in the delay delivery period of the front products in each category in the second schedule when the number of delays is large. Specifically, after the second scheduling plan is obtained, determining a front-end product with a delivery risk based on the first delay amount; then, adjusting the first scheduling plan based on the front-end product with delivery risk; and then, re-scheduling the production of the front-end product based on the adjusted first scheduling plan and the second capacity to obtain a fourth scheduling plan.

When the first delay quantity is larger, the produced front-stage product cannot meet the requirement of the rear-stage product, and the delivery rhythm of the rear-stage product can be adjusted by adjusting the first scheduling plan for scheduling the rear-stage product, so that the requirement on the front-stage product is relaxed, the production of the front-stage product is re-scheduled according to the first scheduling plan and the second productivity of the second factory, and the delay quantity of the front-stage product for delaying delivery is reduced.

It should be noted that the scheduling result of the re-scheduling may be the case without the second scheduling plan, and the fourth scheduling plan may be compared with the second scheduling plan after the re-scheduling is performed, to determine whether the optimization is achieved. Specifically, it may be determined whether the fourth schedule is better than the second schedule based on the first delay amount and the second delay amount by which the front end product of each category in the fourth schedule is delayed for the time period;

if yes, executing a front-end product based on the delivery risk, and adjusting the first scheduling plan; the step of re-scheduling the production of the front-end product based on the adjusted first scheduling plan and second productivity until the second scheduling plan is superior to the re-scheduled fourth scheduling plan, and acquiring the re-scheduled fourth scheduling plan; if not, outputting alarm information based on the front-stage product with risk.

Wherein the first delay amount and the second delay amount may be compared to determine whether optimization of the second schedule is achieved, and when the first delay amount is greater than the second delay amount, the fourth schedule is determined to be better than the second schedule, and when the first delay amount is less than or equal to the second delay amount, the fourth schedule is determined to be not better than the second schedule. If the fourth scheduling plan is determined to be better than the second scheduling plan, the second scheduling plan can be optimized according to the description that the second scheduling plan can be optimized for multiple times according to the step of re-scheduling until the optimization effect is not obvious; and in the case that the fourth scheduling plan is determined not to be superior to the second scheduling plan, the problem that the delivery risk of the current front-end product cannot be solved by the re-scheduling is explained, and at this time, an alarm message can be output to an administrator to inform the administrator of the situation.

In one example, the adjustment of the first schedule may be accomplished by adjusting the delivery rate, which may be by adjusting the number of post-products that each first plant is assigned, by adjusting the number of first plants, etc. Specifically, the method may be to determine a target back-end product to be adjusted based on a front-end product with delivery risk, and perform distribution adjustment on the target back-end product, where the distribution adjustment includes: adjusting at least one of the production plants to which the target end product is allocated, and the number of target end products allocated per production plant; wherein the production factories comprise a first factory for producing the target post-stage product, a factory which is overlapped with the first factory in a production line and a factory for substituting the post-stage product; and then, re-scheduling the production of the rear-stage product based on the distribution and adjustment result, the material supply information, the order information and the first productivity.

The method comprises the steps of determining target rear-section products to be adjusted corresponding to front-section products with delivery risk, then reducing the number of production factories to which the target rear-section products are distributed, reducing the demand quantity of the front-section products by reducing the number of the production factories, and further reducing the delivery risk of the front-section products, or adjusting part of the first-factory production target rear-section products to factories with residual productivity for production, wherein the factories need to be overlapped with part of production lines of the first factories, so that part of working procedures of the target rear-section products can be realized when the factories with residual productivity are idle, and reducing the demand of the first factories to the rear-section products by expanding the productivity of the first factories, thereby reducing the delivery risk of the front-section products.

For example, taking the production of the LED display module and the production of the LCD display module as an example, if the LCD display panel has a delivery risk, and the production capacity of the LED display panel and the production capacity of the LCD display module are excessive, since the partial manufacturing process of the LCD display panel is the same as the partial manufacturing process of the LED display panel, the partial manufacturing process of the LCD display panel can be performed in a factory for producing the LED display panel, and the production factory for the corresponding display module can be used to take on the production work of the partial LCD display module, thereby reducing the delivery risk of the LCD display panel. The need for LCD panels can also be reduced by reducing the foundry that produces LCD display modules to reduce the risk of shipping LCD panels.

In this embodiment, the production scheduling method provided by the present disclosure is adopted, a first scheduling plan is generated according to an order form, an inventory quantity, a production material limiting condition and a first production capacity limit of a first factory, a delivery deadline of a front-end product is determined according to a first time when the rear-end product is put into production in the first scheduling plan, then the delivery deadline and a buffer time and a second capacity of a second factory are adopted as limiting conditions, and a delivery satisfaction degree, a delivery delay rate and a delivery time rate are adopted as optimization targets, so that a second scheduling plan is obtained through linear programming, and the delivery of the front-end product is performed by applying the first scheduling plan in the second scheduling plan, so that a slow inventory problem caused by a way that the front-end product adopts stock production is avoided; and when the delay quantity of the delayed delivery period of the front-stage product reaches a certain degree, the delivery rhythm of the rear-stage product can be adjusted, and the time rate of delivery is improved.

The following specifically describes a production scheduling method provided by the embodiments of the present disclosure, taking a production scheduling of a display module as an example:

The production of the display module can be divided into a panel production stage of the panel factory and a module production stage of the module factory, and then the production scheduling process can refer to fig. 2, fig. 2 shows a flow chart of the production scheduling method provided by the embodiment of the disclosure, according to fig. 2, first, customer requirements are determined according to order information, wherein, since the display panel in the display module can be sold separately, the order information can include a module order or a panel order. Referring to fig. 3, fig. 3 is a schematic diagram showing customer order information in the present embodiment, and as can be seen from fig. 3, the order information includes customer information, order number information, product model information, delivery date, product demand number, and shipment type. The customer information can embody the priority order of customers, and is convenient for scheduling according to the priority of the customers in the scheduling process, and the delivery period and the product demand quantity are used for restraining when scheduling the production of the mould.

Then, the net production requirement of the display module (the later product) is determined according to the customer requirement, specifically, after the customer requirement is determined, the production of the display module is firstly scheduled, then the sales order of the display panel in the scheduling process is unnecessary information, the sales order of the panel can be firstly excluded, and the display module in the inventory can be directly used, and then the inventory quantity can be deducted before the production, so that the module P requirement as shown in fig. 4 is obtained.

And then, scheduling production of the display module according to the P-version requirement of the module so as to obtain a module plan (a first scheduling plan). Specifically, linear programming is performed according to the production requirement of the display module, and the time of putting the display module of each order into production and the output time are determined.

The input data of the linear programming may refer to fig. 5, and fig. 5 shows a schematic diagram of the input data in this embodiment, which at least includes order information, capacity (first capacity) of the module factory, and material supply information, where the order information may be directly obtained according to a requirement of the module P-type, and the material supply information and the capacity of the module factory may be stored in advance or may be input by a user; the input data may also include factory information, production BOM (Bill of Materials), equipment inventory, production process information, product CYCLETIME, panel factory capacity, module factory capacity, product yield, utilization of display modules, utilization of panels, and WIP (work in progress) information. The input data of the linear programming further includes production capacity (second capacity) of the display panel (front-end product), and when the production of the display module is scheduled, it can be assumed that the production capacity of the display panel can completely meet the requirement of any module plan, and the panel capacity can be set to be infinite capacity.

It should be noted that, the actual input of the capacity data of the module factory is the beat time of different production lines, so the actual capacity of the module factory can be calculated according to the beat time, the equipment utilization rate and the daily production plan of each equipment.

In the process of scheduling production of the display module by adopting linear programming, the productivity of equipment, material limitation and priority of each module factory can be used as limiting conditions to obtain a module plan with maximized productivity, high material utilization rate and high product yield. Specifically, the priority of the internal factory may be set higher than that of the foundry, and the internal factory is preferably used to produce the display module, so that the yield of the produced display module is higher. Based on the material supply information, the earliest time each order begins to be put into production may be limited. Taking fig. 6 and fig. 7 as an example, fig. 6 shows the stock quantity, the subsequent supply time and the supply quantity of the key material driving chip (IC) of the product model Code2 in this embodiment, the order may be decomposed according to the inventory quantity, the subsequent supply time and the supply quantity of the key material to obtain an order decomposition schematic diagram shown in fig. 7, according to fig. 7, a display module of 100 may be directly produced according to the stock quantity of the material, then after 100 key materials are supplied for 7 months and 10 days, the production of 100 display modules is continued on the same day, after 300 key materials are supplied for 7 months and 20 days, the production of 300 display modules is continued on the same day.

Thus, the time to put into production and the time to put out of the module plan corresponding to the module production for each order are obtained, and a schematic diagram of the module plan shown in fig. 8 is obtained.

Then, according to the module schedule, the panel demand can be obtained, the input time of the module schedule is converted into the delivery time of the panel, and the target delivery time and the input time of the panel are determined according to the delivery time, wherein, referring to fig. 9, fig. 9 shows a method for determining the target delivery time and the input time of the panel in the embodiment, specifically, the time of the display module on production in the module schedule is taken as the latest delivery time, the target delivery time of the panel is obtained by adjusting the target delivery time of the rear buffer range based on the latest delivery time, and the earliest input time is obtained according to the production cycle of the array engineering and the box engineering in the panel factory and the buffer time. The buffer time may be set according to the product attribute, for example, according to the product type, one buffer time is set for the LED display panel, and another buffer time is set for the LCD display panel.

Thus, a scheduling characteristic value of each panel order is obtained, and referring to fig. 10, fig. 10 shows a schematic diagram of the panel order in this embodiment, and as shown in fig. 10, the scheduling characteristic value includes at least a date of a panel schedule, an earliest time of investment (ESPT), and a quantity.

After the scheduling characteristic value of the panel order is obtained, semi-finished product stock can be prepared in advance according to market prediction or actual operation requirements of factories, for example, 9 months of equipment is needed to be modified, and under the condition of sufficient productivity, the requirement of 9 months can be finished in advance to 7 months or 8 months; the required number of panels at, for example, 9 months is 1000, the required number of panels at 8 months is 4000; the economic batch of the panel factory, namely the minimum production batch is 5000, and the 9-month order can be advanced to 8 months for storing semi-finished products.

After the panel demand strategy is set, the linear programming model can be input according to the panel order information, the capacity limit of the panel factory and the like, the weights of a plurality of optimization targets such as the delivery satisfaction degree, the delivery delay rate and the target weight of the delivery timing rate are set, and meanwhile, the calculation time limit can be added, so that the overlong calculation time is avoided. It should be noted that various constraints, such as production time, capacity consumption, downtime, production plant, upper yield limit, etc., are considered in the calculation of the linear programming model. By the linear programming model, a panel schedule (second schedule) corresponding to the panel production can be obtained, and specifically referring to fig. 11, fig. 11 shows a panel schedule table corresponding to the panel production provided in this embodiment, where the panel schedule includes information such as time and quantity of deliverable panel orders.

And then, the panel plan can be adjusted according to the panel demand strategy, so that the first panel plan can prepare for the module production in advance in the next production period under the condition of sufficient productivity. After the panel schedule is obtained, the number of delay delivery in the panel order can be determined according to the panel schedule, and then the delivery rhythm of the module schedule corresponding to the module production can be indicated according to the number of delay delivery so as to reduce the number of the delay delivery of the panel in the panel schedule.

Based on the same inventive concept, the present disclosure further provides a production scheduling system, referring to fig. 12, fig. 12 shows a schematic structural diagram of the production scheduling system provided by the embodiment of the present disclosure, as shown in fig. 12, where the system specifically includes a first scheduling module 201 and a second scheduling module 202, where:

A second scheduling module 202 for instructing the first scheduling module 201 to schedule production in response to receiving a demand for production of a front-end product;

A first scheduling module 201, configured to obtain order information of a plurality of orders for the back-end product, material supply information of the back-end product, and a first capacity of a first factory that produces the back-end product based on the indication of the second scheduling module 202; and scheduling production of the back-end product based on the material supply information, the order information and the first capacity to obtain a first scheduling plan; wherein the rear-stage product is a product after continuous production of the front-stage product;

The second scheduling module 202 is further configured to schedule production of the front-end product based on the first scheduling plan and a second capacity of a second factory that produces the front-end product, to obtain a second scheduling plan; wherein the second scheduling plan includes: the time at which the second factory begins to produce the lead product, the expected delivery time of the lead product, and the delivery quantity of the lead product.

In one embodiment, the first schedule includes a first time at which the first factory begins to manufacture the back-end product, and the second schedule module is configured to take the first time as a delivery deadline for the back-end product; and scheduling the production of the front-end product based on the first scheduling plan with the delivery deadline and the second capacity as constraints to obtain a second scheduling plan.

In an embodiment, the buffer time obtaining module is connected to the second scheduling module 202, and is configured to obtain a buffer time of each second factory based on the product attribute of the back-end product and the current inventory of the front-end product, where the buffer time characterizes a time when the second factory can be put into production of the front-end product in advance;

The second scheduling module 202 is configured to schedule production of the front-end product based on the first scheduling plan and the buffer time with the delivery deadline and the second capacity as constraints, and obtain a second scheduling plan.

In one embodiment, the second scheduling module 202 includes a second scheduling sub-module and a screening module; the second scheduling sub-module is connected with the screening module;

A second scheduling sub-module for performing various scheduling of the production of the front-end product based on the first scheduling plan with the delivery deadline and the second capacity as constraints;

and the screening module is used for screening the second scheduling plan from a plurality of scheduling plans obtained by various scheduling.

In one embodiment, the second scheduling sub-module 202 is configured to perform a first linear planning on the production of the front-end product based on the first scheduling plan to obtain a second scheduling plan, with the delivery deadline and the second capacity as constraints;

The delivery satisfaction represents the ratio of the delivery quantity of the front-stage product to the order demand quantity of the rear-stage product, and the delay delivery rate represents the ratio of the quantity of the front-stage product to the order demand quantity, which are delivered in time, and the delivery time represents the ratio of the quantity of the front-stage product to the order demand quantity.

In an embodiment, the optimization objective further comprises: and calculating the limiting time length, wherein the calculating the limiting time length represents the time-consuming time length for performing the first linear programming.

In one embodiment, the production scheduling system further comprises:

the priority determining module is connected with the second scheduling plan and is used for determining a first priority corresponding to each order based on the user information of the ordering user to which each of the orders belongs, wherein the first priority is used for representing the risk degree of change of the orders;

The second scheduling module 202 is configured to schedule production of the front-end product based on the first scheduling plan, the second capacity, and the first priority of each order, and obtain a second scheduling plan.

In an embodiment, the first scheduling module 201 includes a constraint information acquisition module and a first scheduling sub-module constraint information acquisition module connected to the first scheduling sub-module;

The limiting information acquisition module is used for acquiring limiting information related to the production of the rear-section products, wherein the limiting information comprises a second priority and/or factory transferring time corresponding to the first factory, and the second priority characterizes the product yield and/or production efficiency of the rear-section products produced by the first factory; the factory transfer time characterizes the transfer duration of the back-end product from a foundry to the first factory;

And the first scheduling sub-module is used for scheduling the production of the rear-stage product based on the limit information, the material supply information, the order information and the first productivity to obtain the first scheduling plan.

In an embodiment, the first scheduling sub-module comprises an acquisition module and a first scheduling unit, wherein the acquisition module is connected with the first scheduling unit;

The acquisition module is used for acquiring the stock quantity of the currently-stock materials, the supply quantity of the subsequently-supplied materials and the supply time based on the material supply information;

And acquiring production material limitation conditions based on the stock quantity, the supply quantity and the supply time;

the first scheduling unit is used for performing second linear programming on the production of the rear-stage product based on the order information by taking the limit information, the material limit condition and the first production capacity as constraints to obtain the first scheduling plan;

In one embodiment, the production scheduling system further comprises:

the productivity acquisition module is connected with the first scheduling module and is used for acquiring beat time of equipment of the first factory and utilization rate of the equipment;

and obtaining the first capacity based on the takt time, the equipment utilization rate, and a daily production plan of the first plant.

In one embodiment, the production scheduling system further comprises: the system comprises an information acquisition module and a scheduling plan adjustment module, wherein the information acquisition module is connected with the scheduling plan adjustment module;

The information acquisition module is used for acquiring operation information of the second factory in the next production period of the current production period and the inventory requirement of the front-end products in the next production period;

And the scheduling plan adjustment module is used for adjusting the second scheduling plan based on the operation information and/or the inventory requirement to obtain a third scheduling plan.

In one embodiment, the production scheduling system further comprises:

A negative feedback module, respectively connected to the first scheduling module 201 and the second scheduling module 202, for determining a front-end product having a delivery risk based on the first delay amount; sending the front-end product with risk to the first scheduling module 201;

The first scheduling module 201 is further configured to adjust the first scheduling plan based on the front-end product with risk;

the second scheduling module 202 is further configured to re-schedule the production of the front-end product based on the adjusted first scheduling plan and the adjusted second capacity, so as to obtain a fourth scheduling plan.

In one embodiment, the production scheduling system further comprises:

an inventory policy module, connected to the second scheduling module 202, for obtaining operation information of the second factory, and in a next production period of the current production period, the inventory requirement of the front-end product, and sending the operation information and the inventory requirement to the second scheduling module;

the second scheduling module 202 is configured to adjust the second scheduling plan based on the operation information and/or the inventory requirement, so as to obtain a third scheduling plan.

In one embodiment, the second schedule further includes a first delay amount for each category of lead product delayed for a period of time; the second scheduling module 202 includes: the method comprises the steps of obtaining a sub-module and a second scheduling sub-module;

An acquisition sub-module for acquiring the target front-end products with the first delay quantity smaller than a preset quantity and a target second factory for producing the target front-end products;

And the second scheduling sub-module is connected with the acquisition sub-module and is used for adjusting the scheduling belonging to the target second factory in the second scheduling plan based on the operation information corresponding to the target second factory in the operation information and/or the inventory demand corresponding to the target front-end product in the inventory demand so as to obtain the third scheduling plan.

In one embodiment, the second scheduling plan further includes a first delay amount by which the lead product of each category is delayed for a lead time, the production scheduling system further including:

A first determining module, connected to the second scheduling sub-module, for determining, based on the first delay amount, a front-end product at risk of delivery;

an adjustment module, connected to the first scheduling module 201, for adjusting the first scheduling plan based on the front-end product with delivery risk;

the second scheduling module 202 is connected to the adjusting module, and is configured to re-schedule the production of the front-end product based on the adjusted first scheduling plan and the second capacity, so as to obtain a fourth scheduling plan.

In one embodiment, the production scheduling system further comprises:

A second determining module, coupled to a second scheduling sub-module, for determining whether the fourth scheduling plan is better than the second scheduling plan based on the first delay amount and a second delay amount of the delayed intersection of the front-end products of each category in the fourth scheduling plan;

If yes, executing the front-end product based on the delivery risk, and adjusting the first scheduling plan; a step of re-scheduling the production of the front-end product based on the adjusted first scheduling plan and the second capacity until the second scheduling plan is superior to the re-scheduled fourth scheduling plan, and a fourth scheduling plan after the previous re-scheduling is obtained;

If not, outputting alarm information based on the front-stage product with delivery risk.

In an embodiment, the adjustment module further comprises: an adjustment sub-module and a re-scheduling module, wherein,

The adjusting sub-module is configured to determine a target rear-end product to be adjusted based on the front-end product with delivery risk, and perform distribution adjustment on the target rear-end product, where the distribution adjustment includes: adjusting at least one of a production plant that produces the target end product, and the number of the target end product to which each of the production plants is assigned; wherein the production plants include a first plant that produces the target end product, a plant that has a line overlap with the first plant, and a plant that replaces the end product;

And the rescheduling module is used for rescheduling the production of the rear-stage product based on the distribution adjusted result, the material supply information, the order information and the first productivity.

Based on the same inventive concept, the present disclosure further provides an electronic device, including a memory, a processor, and a computer program stored on the memory, where the processor executes the computer program to implement the production scheduling method according to any one of the foregoing embodiments.

Based on the same inventive concept, the present disclosure also proposes a computer readable storage medium storing a computer program for causing a processor to execute the production scheduling method according to any one of the embodiments described above.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

The foregoing has outlined a detailed description of a method, system, apparatus, and medium for manufacturing scheduling in accordance with the present disclosure, wherein specific examples are presented herein to illustrate the principles and embodiments of the present disclosure, and the above examples are intended only to facilitate an understanding of the method and core concepts of the present disclosure; meanwhile, as one of ordinary skill in the art will have variations in the detailed description and the application scope in light of the ideas of the present disclosure, the present disclosure should not be construed as being limited to the above description.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Reference herein to "one embodiment," "an embodiment," or "one or more embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. Furthermore, it is noted that the word examples "in one embodiment" herein do not necessarily all refer to the same embodiment.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the disclosure may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The disclosure may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present disclosure, and are not limiting thereof; although the present disclosure has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims

1. A method of production scheduling, the method comprising:

2. The method of claim 1, wherein the first schedule includes a first time at which the first factory begins to manufacture the back-end product, wherein the scheduling the production of the front-end product based on the first schedule and a second capacity of a second factory that produces the front-end product includes:

Taking the first time as the delivery deadline of the front-end product;

3. The production scheduling method of claim 2, wherein scheduling production of the lead product based on the first scheduling plan with the delivery deadline and the second capacity as constraints, the second scheduling plan comprising:

4. A method of scheduling production of claim 2 or 3, wherein scheduling production of the lead product based on the first schedule with the delivery deadline and the second capacity as constraints, the second schedule comprising:

Taking the delivery deadline and the second capacity as constraints, and performing various scheduling on the production of the front-end products based on the first scheduling plan;

5. The production scheduling method of claim 4, wherein the scheduling production of the lead product is performed based on the first scheduling plan with the delivery deadline and the second capacity as constraints; and screening the second schedule from a plurality of schedule plans obtained from a plurality of the schedules, comprising:

Taking the delivery cut-off time and the second productivity as constraints, and carrying out first linear planning on the production of the front-end product based on the first scheduling plan to obtain the second scheduling plan;

6. The method of claim 5, wherein the optimization objective further comprises: calculating a limit duration, wherein the calculated limit duration characterizes a time-consuming duration for performing the first linear programming.

7. A method of production scheduling according to any one of claims 1-3, further comprising:

8. The production scheduling method of claim 1, wherein scheduling production of the succeeding product based on the material supply information, the order information, and the first capacity, comprises:

Obtaining limit information related to the production of the rear-end products, wherein the limit information comprises a second priority and/or factory transferring time corresponding to the first factory, and the second priority characterizes the product yield and/or production efficiency of the rear-end products produced by the first factory; the plant transit time characterizes a transit time of the back-end product between the first plants;

9. The production scheduling method of claim 8, wherein scheduling production of the back-end product based on the limit information, the material supply information, the respective order information, the first capacity comprises:

acquiring production material limiting conditions based on the stock quantity, the supply quantity and the supply time;

10. The method of claim 1, further comprising:

after obtaining the second scheduling plan, the method further comprises:

11. The production scheduling method of claim 10, wherein the second scheduling plan further comprises a first delay amount by which the lead product of each category is delayed for a cross-period; the step of adjusting the second scheduling plan based on the operation information and/or the inventory requirement to obtain a third scheduling plan includes:

12. The production scheduling method of claim 1, wherein the second scheduling plan further comprises a first delay amount by which a lead product of each category is delayed for a lead time; after the second scheduling plan is obtained, the method further includes:

Adjusting the first scheduling plan based on the lead product at risk of delivery;

13. The production scheduling method of claim 12, wherein the re-scheduling the production of the front-end product based on the adjusted first schedule and the second capacity, after obtaining a fourth schedule, the method further comprises:

14. The method of claim 12, wherein adjusting the first scheduling plan based on the lead product at risk of delivery comprises:

Determining a target rear-end product to be adjusted based on the front-end product with delivery risk, and performing distribution adjustment on the target rear-end product, wherein the distribution adjustment comprises: adjusting at least one of a production plant to which the target end product is allocated, and the number of the target end product allocated per the production plant; wherein the production plants include a first plant that produces the target end product, a plant that has a line overlap with the first plant, and a plant that replaces the end product;

15. A production scheduling system, the system comprising a first scheduling module and a second scheduling module, wherein:

the second scheduling module is used for responding to the received scheduling requirement of the front-end products and indicating the first scheduling module to schedule production;

16. An electronic device comprising a memory, a processor and a computer program stored on the memory, the processor executing the computer program to implement the production scheduling method of any one of the preceding claims 1-14.

17. A computer readable storage medium storing a computer program for causing a processor to perform the production scheduling method of any one of claims 1-14.