CN117829549A - System and method for managing workshop work-in-process based on virtual transit warehouse - Google Patents
System and method for managing workshop work-in-process based on virtual transit warehouse Download PDFInfo
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Abstract
The invention belongs to the technical field of workshop work-in-process management and control, and particularly relates to a system and a method for managing workshop work-in-process based on a virtual transfer warehouse. According to the invention, the production process can be monitored in time by acquiring the product information and the production task in real time, the production efficiency is adjusted according to the production task demand, the production efficiency is improved stepwise, the production efficiency can be optimized gradually in the production period, the production efficiency and the resource utilization rate are improved, the loss cost in the production process can be reduced by evaluating the loss cost and adjusting the production efficiency, the production benefit is improved, decision support can be provided based on the loss cost evaluation and the automatic adjustment of the threshold stage, the production process is more intelligent and automatic, the continuous optimization of the production process can be realized by continuous monitoring and adjustment, the production efficiency and the product quality are improved, the production cost is reduced, and the enterprise competitiveness is enhanced.
Description
Technical Field
The invention belongs to the technical field of workshop work-in-process management and control, and particularly relates to a system and a method for managing workshop work-in-process based on a virtual transfer warehouse.
Background
With the development of manufacturing industry and the progress of technology, workshop work-in-process management becomes a key link for improving production efficiency, reducing cost and ensuring product quality. The traditional workshop work-in-process management mode mainly depends on manual recording, tracking and scheduling, and has the problems of low efficiency, high error, incapability of meeting the requirements of high precision and high efficiency of the modern manufacturing industry and the like. Therefore, it is important to develop a new workshop work-in-process management method.
In recent years, with rapid development of information technology and internet of things technology, a workshop work-in-process management method based on a virtual transit bank is attracting attention. The virtual transfer library is used as a virtual storage system based on an information technology, and can realize real-time tracking, monitoring and scheduling of workshops and products in process, and improve the information processing efficiency and accuracy.
However, the existing management system still has the defects in terms of production efficiency improvement, loss cost control and the like, lacks a dynamic adjustment mechanism aiming at production ladder efficiency and loss cost, cannot realize effective management and optimization of products, and in addition, when loss adjustment is carried out, defective products are generally used as costs directly, but in practice, as most products are made of various materials, part of raw materials can still be recycled, all the defective products are used as cost expenditure, the defective products exist, and the general workshops carry out material preparation according to production plans, although the preparation of various materials is relatively sufficient, the defective products cannot exceed the production plans too much, and once the defective products are high, the defective products are easily damaged seriously, and normal production of the products is affected.
Disclosure of Invention
The invention aims to provide a workshop work-in-process management method based on a virtual transfer warehouse, which can realize optimization and control of the work-in-process production process by comprehensively managing and regulating work-in-process information, production tasks, production efficiency, loss cost and the like in the virtual transfer warehouse, thereby improving the production efficiency, reducing the cost and guaranteeing the product quality.
The technical scheme adopted by the invention is as follows:
a method for managing work-in-process of workshops based on virtual relay libraries, comprising:
obtaining work-in-process information in a virtual transit warehouse and production tasks in a production workshop, wherein the work-in-process information comprises types and production quantity, and the production tasks comprise static manufacturing data, dynamic order data and inventory data;
obtaining standard production efficiency of products on a production line, and determining whether the production line meets production tasks according to the standard production efficiency and the production tasks;
obtaining the production cycle of the product, and gradually improving the production efficiency in the production cycle stepwise to obtain the production step efficiency;
obtaining the yield and the defective rate of the steps in the production period in the production step efficiency, and obtaining the standard defective cost produced according to the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and reprocessed defective products, and the reprocessed defective products are not marked as defective products when the reprocessed defective products meet the production requirements;
Obtaining effective material parameters of the split defective products, wherein the effective material parameters comprise effective material types and corresponding amounts, and the effective material parameters are used as standby materials;
when the materials in the production task are insufficient, selecting corresponding materials from the standby materials, and stopping the supply of the standby materials after the materials are supplemented;
obtaining a loss cost change trend according to the defective rate and defective cost;
and acquiring the loss cost in the production period, acquiring a threshold stage of the loss cost change trend in the production period according to the standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval.
In a preferred embodiment, the step of determining whether the production line meets the production task according to the standard production efficiency and the production task includes:
obtaining to-be-produced quantity according to the order quantity of the product and the inventory data in the production task;
acquiring delivery production efficiency according to the delivery time, and comparing the delivery production efficiency with standard production efficiency;
if the delivery production efficiency is smaller than the standard production efficiency, the current production efficiency of the product can meet the requirement of the production task according to the standard production efficiency;
If the delivery production efficiency is greater than or equal to the standard production efficiency, the current production efficiency of the product cannot meet the requirements of production tasks according to the standard production efficiency, and the production efficiency needs to be improved.
In a preferred scheme, the step of obtaining the production cycle of the product and gradually improving the production efficiency in the production cycle in a stepwise manner to obtain the production step efficiency comprises the following steps:
acquiring a production period;
equally dividing the duration of the production period into a plurality of production stages according to the production period;
the production efficiency in the production stage is improved stepwise according to the division sequence of the production stage, and a plurality of production ladder efficiencies of the production period are obtained.
In a preferred embodiment, the step of obtaining the loss cost variation trend according to the defective rate and the defective cost includes:
obtaining the yield and the defective rate of the steps in the production step efficiency of the steps in the production period;
obtaining the defective cost of the standard production efficiency of the product;
obtaining loss cost according to the defective rate of the production ladder efficiency and the defective cost of the standard production efficiency;
a trend evaluation model is obtained, and a trend evaluation function is obtained from the trend evaluation model;
inputting the loss cost in the production period into a trend evaluation function, wherein the output value is a loss cost trend value;
If the value of the loss cost trend value is smaller than zero, the loss cost in the production period is indicated to be reduced;
if the value of the loss cost trend value is larger than zero, the loss cost in the production period is indicated to be increased.
In a preferred embodiment, the trend evaluation function is:
wherein Q is expressed as a loss cost trend value, i is expressed as a number of loss costs in a production period, n is expressed as a total number of loss costs in the production period, S is expressed as loss costs in the production period, L is expressed as a standard defective rate, C is expressed as defective cost, and S should be the cost of removing defective products which meet production requirements and the cost of effective material parameters.
In a preferred solution, the step of obtaining the loss cost in the production cycle, obtaining a threshold stage of the loss cost variation trend in the production cycle according to the standard loss evaluation interval and the loss cost variation trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage, so that the loss cost of the product reaches the standard loss evaluation interval comprises the following steps:
obtaining the loss cost of the production ladder efficiency in the production period;
according to the standard loss evaluation interval and the dividing sequence of the production stages, the production ladder efficiency is compared with the delivery production efficiency one by one, and the threshold stage of the loss cost change trend in the production period is judged;
If the loss cost in the production period is reduced and the production ladder efficiency is greater than the delivery production efficiency, indicating that the production ladder efficiency greater than the delivery production efficiency is the minimum efficiency stage, and the production ladder efficiency after the minimum efficiency stage is the threshold stage;
if the loss cost in the production period is increased, the production ladder efficiency is greater than the delivery production efficiency, and the loss cost is smaller than the standard loss evaluation interval, the production ladder efficiency greater than the delivery production efficiency is indicated to be a minimum efficiency stage, the production ladder efficiency in which the loss cost after the minimum efficiency stage is greater than the standard loss evaluation interval is indicated to be a maximum efficiency stage, and the production ladder efficiency in the minimum efficiency stage and the maximum efficiency stage is indicated to be a threshold stage;
and obtaining the production ladder efficiency in the threshold stage, so that the loss cost of the product reaches the standard loss evaluation interval.
In a preferred embodiment, the step of determining the threshold stage of the loss cost variation trend in the production cycle according to the standard loss evaluation interval and the division sequence of the production stages, so that the production step efficiency and the delivery production efficiency are compared one by one, further includes:
if the cost of loss in the production cycle is increased and the cost of loss is greater than the standard loss evaluation interval, the cost of loss of step efficiency in the production cycle is higher than the standard loss evaluation interval, and the product is in a high-loss order.
In a preferred embodiment, the step of obtaining the production step efficiency in the threshold stage, so that after the step of obtaining the loss cost of the product reaches the standard loss evaluation interval, includes:
acquiring production ladder efficiency in a threshold stage;
acquiring dynamic order data delivery time in a production task;
acquiring a difference value of delivery time according to the delivery sequence;
acquiring a delivery difference efficiency interval;
dividing the production ladder efficiency in the threshold stage into a priority efficiency interval corresponding to the delivery difference efficiency interval according to the delivery difference efficiency interval;
and selecting the production ladder efficiency in the corresponding priority efficiency interval according to the difference value of the delivery time.
The invention also provides a system for managing work-in-process based on the virtual transfer library, which is used for the method for managing work-in-process based on the virtual transfer library, and comprises the following steps:
the information extraction module is used for acquiring work-in-process information in the virtual transit warehouse and production tasks in a production workshop, wherein the work-in-process information comprises types and production quantity, and the production tasks comprise static manufacturing data, dynamic order data and inventory data;
the judging module is used for acquiring the standard production efficiency of the product on the production line and determining whether the production line meets the production task according to the standard production efficiency and the production task;
The step efficiency module is used for obtaining the production cycle of the product and gradually improving the production efficiency in the production cycle step by step to obtain the production step efficiency;
the quality judging module is used for obtaining the yield and the defective rate in the production step efficiency of the steps in the production period and obtaining the standard defective cost produced according to the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and reprocessed defective products, and the reprocessed defective products are not recorded as defective products when the reprocessed defective products meet the production requirements;
the splitting module is used for acquiring effective material parameters split in the defective products, wherein the effective material parameters comprise effective material types and corresponding amounts, and the effective material parameters are used as standby materials;
the material supplementing module is used for selecting corresponding materials from the standby materials when the materials in the production task are insufficient, and stopping the supply of the standby materials after the materials are supplemented;
the trend analysis module is used for obtaining a loss cost change trend according to the defective rate and the defective cost;
the management and control module is used for acquiring the loss cost in the production period, acquiring a threshold stage of the loss cost change trend in the production period according to the standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval.
And a terminal for managing work-in-process of workshops based on a virtual transfer library, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
and when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method for managing workshops based on virtual relay libraries.
The invention has the technical effects that:
according to the invention, the production process can be monitored in time by acquiring the product information and the production task in real time, the production efficiency is adjusted according to the production task demand, the production efficiency is improved stepwise, the production efficiency can be optimized gradually in the production period, the production efficiency and the resource utilization rate are improved, the loss cost in the production process can be reduced by evaluating the loss cost and adjusting the production efficiency, the production benefit is improved, decision support can be provided based on the loss cost evaluation and the automatic adjustment of the threshold stage, the production process is more intelligent and automatic, the continuous optimization of the production process can be realized by continuous monitoring and adjustment, the production efficiency and the product quality are improved, the production cost is reduced, and the enterprise competitiveness is enhanced.
Drawings
FIG. 1 is a flow chart of a method provided by the present invention;
fig. 2 is a block diagram of a system provided by the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one preferred embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, the present invention will be described in detail with reference to the drawings, which are only examples for convenience of illustration, and should not limit the scope of the present invention.
Referring to fig. 1, a method for managing work-in-process in a workshop based on a virtual transfer library is provided, which includes:
s1, acquiring work-in-process information in a virtual transit warehouse and production tasks in a production workshop, wherein the work-in-process information comprises types and production quantity, and the production tasks comprise static manufacturing data, dynamic order data and inventory data;
s2, obtaining standard production efficiency of products on the production line, and determining whether the production line meets production tasks according to the standard production efficiency and the production tasks;
s3, acquiring a production period of a product, and gradually improving the production efficiency in the production period stepwise to obtain the production step efficiency;
s4, obtaining the yield and the defective rate in the production step efficiency of the steps in the production period, and obtaining the standard defective cost produced according to the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and reprocessed defective products, and the reprocessed defective products are not marked as defective products when the reprocessed defective products meet the production requirements;
s5, obtaining effective material parameters of the split defective products, wherein the effective material parameters comprise effective material types and corresponding amounts, and taking the effective material parameters as standby materials;
s6, selecting corresponding materials from the standby materials when the materials in the production task are insufficient, and stopping the supply of the standby materials after the materials are supplemented;
S7, obtaining a loss cost change trend according to the defective rate and the defective cost;
s8, acquiring the loss cost in the production period, acquiring a threshold stage of the loss cost change trend in the production period according to the standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval.
In the steps S1 to S8, firstly, the product information in the virtual transfer warehouse and the production task data in the production workshop are obtained, the product information comprises the type and the production quantity of products and the static manufacturing data, the dynamic order data and the inventory data of production tasks, the standard production efficiency of the products on the production line is obtained, whether the production line meets the requirement of the production tasks or not is judged according to the standard production efficiency and the requirement of the production tasks, the production cycle of the products is obtained, the production efficiency is gradually improved through the step efficiency module, the production step efficiency is obtained, the production step efficiency can be realized through the modes of adjusting production equipment, optimizing the production flow and the like, the yield and the defective rate in the production step efficiency of steps in the production cycle are obtained, the standard defective cost is calculated, the defective products comprise industrial waste defective products, material waste defective products and repairing defective products, the reworked defective products are not counted as defective products when the reworked defective products meet the production requirement, the effective material parameters of the split defective products are obtained and used as standby materials, when the materials in the production task are insufficient, the corresponding material supplement is selected from the standby materials, once the material supplement is completed, the supply of the standby materials is stopped, the change trend of the loss cost is estimated according to the defective rate and the defective cost, the threshold stage of the change trend of the loss cost in the production period is determined according to the standard loss evaluation interval and the change trend of the loss cost, then the production efficiency of the product is adjusted according to the production ladder efficiency of the threshold stage, so that the loss cost of the product reaches the standard loss evaluation interval, the production ladder efficiency is gradually improved by optimizing the production efficiency in the production period, the overall production efficiency is improved, the production period is reduced, the productivity utilization rate is improved by evaluating the defective rate and the defective cost, and corresponding measures such as repairing and optimizing processes are adopted, so that the defective rate and defective cost can be effectively reduced, the product quality and the production efficiency are improved, the materials required by production can be timely supplemented through standby material management, production interruption caused by material shortage is avoided, smooth completion of production tasks is ensured, the change trend of the loss cost can be timely found and corrected through evaluation and adjustment of the loss cost, the loss cost is effectively controlled, and the profitability of enterprises is improved.
The static manufacturing data refers to relatively stable and infrequently changed data in the production process, usually describes and plans production resources, equipment, processes, procedures and the like, and information such as historical production data and the like, including technical parameters of production equipment, layout and structure of production lines, product process routes, standard operation guidelines, process flow charts, product design specifications and the like, the dynamic order data refers to order information which is changed and updated continuously with time and reflects dynamic changes such as client demands, order quantity, delivery time and the like, the data including order numbers, order quantity, delivery dates, client information, product model numbers, specification requirements, delivery places and the like, and the inventory data refers to quantity and state information of raw materials, products and finished products stored in a production workshop or enterprise, including quantity, storage positions, quality conditions and the like of raw material inventory, product inventory and finished product inventory.
A step of determining whether the production line meets the production task according to the standard production efficiency and the production task, comprising:
s201, obtaining to-be-produced quantity according to the order quantity of the product and inventory data in the production task;
s202, acquiring delivery production efficiency according to delivery time, and comparing the delivery production efficiency with standard production efficiency;
If the delivery production efficiency is smaller than the standard production efficiency, the current production efficiency of the product can meet the requirement of the production task according to the standard production efficiency;
if the delivery production efficiency is greater than or equal to the standard production efficiency, the current production efficiency of the product cannot meet the requirements of production tasks according to the standard production efficiency, and the production efficiency needs to be improved.
As described above in steps S201 to S202, the work-in-process order amount and delivery time of the dynamic order data are acquired from the production task, and the inventory data, the production amount to be produced, that is, the number of products to be produced in the production cycle, is calculated from the work-in-process order amount and the inventory data, the delivery production efficiency of the production task is determined according to the delivery time, that is, the number of products to be completed in the prescribed time, is compared with the standard production efficiency, if the delivery production efficiency is smaller than the standard production efficiency, it is indicated that the current work-in-process can meet the production task requirements according to the standard production efficiency, if the delivery production efficiency is greater than or equal to the standard production efficiency, it is indicated that the current work-in-process cannot meet the production task requirements according to the standard production efficiency, the production efficiency needs to be lifted, the dynamic order data and the inventory data are acquired, the production task requirements can be evaluated more accurately, thereby optimizing the production schedule, avoiding resource waste or delivery delay due to the surplus production or insufficient production, finding the shortage of production efficiency in time by comparing the delivery production efficiency with the standard production efficiency, and taking measures to ensure that the production efficiency is completed on time, the production efficiency is improved and the production efficiency is required to be reasonably improved by the production efficiency is improved by the calculation and the production efficiency is not being required to be improved according to the standard production efficiency, and the production efficiency is not being reasonably improved by the production efficiency is calculated by the production schedule and the production efficiency is guaranteed by the production efficiency is required to be improved by the production efficiency is guaranteed by the production efficiency and is not being reasonably being calculated, the method can find potential problems and improvement space in the production process, promote continuous improvement and optimization of the production process, and improve the competitiveness and sustainable development capability of enterprises.
The method comprises the steps of obtaining the production cycle of the product, gradually improving the production efficiency in the production cycle stepwise to obtain the production step efficiency, and comprises the following steps:
s301, acquiring a production period;
s302, equally dividing the duration of the production period into a plurality of production stages according to the production period;
s303, the production efficiency in the production stage is increased stepwise according to the division sequence of the production stage, and a plurality of production step efficiencies of the production period are obtained.
In the steps S301 to S303, first, part of time is selected from a production plan or demand prediction, or the information of the production cycle is obtained from a historical database, and the total time required by the production task is determined from the production plan, and the production cycle is equally divided into a plurality of production stages according to the total duration of the production cycle, the length of each production stage can be divided according to the characteristics of the production task and the actual conditions of the production environment, the production efficiency in each production stage is stepwise improved, which means that the production efficiency can be gradually improved along with the time in the production cycle, the division order of the production stages determines the improvement order of the production efficiency, the lower efficiency is gradually improved to higher efficiency at the beginning of the production cycle, the production cycle is segmented by the production cycle, the production activity in the production cycle can be reasonably planned, the production process is more orderly and controllable, the production cost and the time in the initial stage of the production cycle can be effectively reduced, the production efficiency and the productivity utilization rate can be improved, the stepwise improvement of the production efficiency can be ensured to be completed in the specified time, the quality can be effectively reduced in the production cycle, the quality can be reasonably controlled in the production cycle, and the production cycle is prevented from being more than the quality is reasonably controlled in the initial stage, and the production cycle is not required, and the quality is improved.
Obtaining a loss cost change trend according to the defective rate and the defective cost, wherein the loss cost change trend comprises the following steps:
s601, obtaining the yield and the defective rate in the production step efficiency of steps in the production period;
s602, obtaining the defective cost of the standard production efficiency of the product;
s603, obtaining loss cost according to the defective rate of the production ladder efficiency and the defective cost of the standard production efficiency;
s604, acquiring a trend evaluation model, and acquiring a trend evaluation function from the trend evaluation model;
s605, inputting the loss cost in the production period into a trend evaluation function, wherein the output value is a loss cost trend value;
if the value of the loss cost trend value is smaller than zero, the loss cost in the production period is indicated to be reduced;
if the value of the loss cost trend value is larger than zero, the loss cost in the production period is indicated to be increased.
In the steps S601 to S605, each production step in the production cycle is analyzed to obtain the yield and the defective rate in the production step efficiency, the yield represents the proportion of qualified products in the products produced in the step, the defective rate represents the proportion of defective products or unqualified products produced, after the standard production efficiency of the product is determined, the defective cost is obtained, the defective cost refers to the additional cost caused by the produced defective products, including the cost in terms of waste disposal, reworking, maintenance and the like, the loss cost in the production step is calculated according to the defective rate of each production step and the defective cost of the standard production efficiency, the loss cost can be obtained by dividing the defective cost by the defective rate and multiplying the current defective rate, the additional cost generated by the defective products in the step is represented, a trend evaluation model is obtained, the model can be used for evaluating the change trend of the loss cost, the general trend evaluation model can be a linear model, an index model and the like, the change trend of the loss cost with time is used for describing the change trend of the loss cost, the loss cost in the production cycle is input into a function, the loss cost in the production cycle is represented by the change trend of the loss in the production cycle if the change trend of the loss is represented by the change trend of the cost in the production cycle; if the trend value is positive, the loss cost is increased, the loss cost in the production process can be quantified by analyzing the defective rate and defective cost of the production steps, the enterprise optimization cost management is facilitated, the production cost is reduced, the quality problem in the production process is found by monitoring and analyzing the defective rate, measures are taken to improve the quality problem, the production efficiency is improved, the resource allocation and the production plan can be timely adjusted according to the change trend of the loss cost, the production process is optimized, the resource utilization efficiency is improved, the risk and the problem in the production process can be timely found by evaluating the trend of the loss cost, measures are taken in advance to deal with, the loss risk is reduced, the realization of the production target is guaranteed, and the trend evaluation result of the loss cost can provide decision support for a management layer, help them to formulate a reasonable production strategy and resource allocation scheme, and improve the enterprise operation efficiency and competitiveness.
One of the preferred trend evaluation functions is:
wherein Q is expressed as lostThe trend value i is expressed as a number of loss costs in a production period, n is expressed as a total number of loss costs in the production period, S is expressed as the loss costs in the production period, L is expressed as a standard defective rate, and C is expressed as a defective cost, wherein S should be the cost of removing the defective products which meet the production requirements and the cost of effective material parameters.
Above-mentioned, through the trend evaluation function, can be to the trend of losing cost in the production cycle forecast and analysis, this helps the enterprise to discover the trend of losing cost in time, take corresponding measure to adjust and optimize, through the trend of monitoring losing cost, the enterprise can discover potential problem and risk in advance, take measure in time to intervene, avoid losing cost to further enlarge, according to the trend evaluation result of losing cost, the enterprise can rationally allocate resources, optimize production plan and flow, thereby reduce losing cost, improve resource utilization and production efficiency, the trend evaluation result provides decision support for the enterprise management layer, help it to formulate reasonable production strategy and adjust production plan, challenge and opportunity under different trends are handled.
Obtaining the loss cost in the production period, obtaining a threshold stage of the loss cost change trend in the production period according to a standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval, wherein the method comprises the following steps:
s801, acquiring loss cost of production ladder efficiency in a production period;
s802, according to a standard loss evaluation interval and the dividing sequence of production stages, comparing the production ladder efficiency with the delivery production efficiency one by one, and judging a threshold stage of a loss cost change trend in the production period;
if the loss cost in the production period is reduced and the production ladder efficiency is greater than the delivery production efficiency, indicating that the production ladder efficiency greater than the delivery production efficiency is the minimum efficiency stage, and the production ladder efficiency after the minimum efficiency stage is the threshold stage;
if the loss cost in the production period is increased, the production ladder efficiency is greater than the delivery production efficiency, and the loss cost is smaller than the standard loss evaluation interval, the production ladder efficiency greater than the delivery production efficiency is indicated to be a minimum efficiency stage, the production ladder efficiency in which the loss cost after the minimum efficiency stage is greater than the standard loss evaluation interval is indicated to be a maximum efficiency stage, and the production ladder efficiency in the minimum efficiency stage and the maximum efficiency stage is indicated to be a threshold stage;
S803, acquiring production step efficiency in a threshold stage, so that the loss cost of the product reaches a standard loss evaluation interval.
In the steps S801 to S803, for each production ladder in the production cycle, the loss cost is calculated, if the loss cost in the production cycle shows a decreasing trend and the production ladder efficiency is greater than the delivery production efficiency, the production ladder efficiency greater than the delivery production efficiency is determined to be the minimum efficiency stage, if the loss cost in the production cycle shows an increasing trend and the production ladder efficiency is greater than the delivery production efficiency and the loss cost is less than the standard loss evaluation interval, the production ladder efficiency greater than the delivery production efficiency is determined to be the minimum efficiency stage, the production ladder efficiency after the minimum efficiency stage is greater than the production ladder efficiency of the standard loss evaluation interval is determined to be the maximum efficiency stage, the production ladder efficiency in the threshold stage is determined according to the judgment, the loss cost of the product reaches the standard loss evaluation interval, the production efficiency is adjusted according to the change trend of the loss cost, the cost is calculated, the production ladder efficiency is adjusted according to the change trend of the loss cost, the production ladder efficiency is more effectively controlled, the utilization rate and the production efficiency is improved, the production cost is calculated, the resource utilization rate and the production efficiency is improved, the production cost is reduced, the risk is calculated, the risk is reduced, the production cost is calculated, the risk is calculated, and the production cost is calculated and the risk is calculated, and the risk is calculated, and the cost is adjusted in the production steps is calculated.
According to the standard loss evaluation interval and the dividing sequence of the production stages, comparing the production ladder efficiency with the delivery production efficiency one by one, judging the threshold stage of the loss cost change trend in the production period, and further comprising:
if the cost of loss in the production cycle is increased and the cost of loss is greater than the standard loss evaluation interval, the cost of loss of step efficiency in the production cycle is higher than the standard loss evaluation interval, and the product is in a high-loss order.
Firstly, the production efficiency and the delivery production efficiency in each production stage and the corresponding delivery time period are obtained, the production ladder efficiency and the corresponding delivery production efficiency are compared one by one, the purpose of the comparison is to judge whether the production ladder efficiency is high enough to meet the delivery requirement, if the loss cost in the production period shows an increasing trend and is higher than the standard loss evaluation interval, in the stage, the loss cost of the production ladder efficiency is higher than the standard loss evaluation interval, the order is indicated to belong to a high-loss order, by judging whether the change trend of the loss cost in the production period and the loss cost are higher than the standard loss evaluation interval, the high-risk order can be timely identified, namely, the order with larger loss can be caused, after the high-risk order is identified, the enterprise can take corresponding risk management measures such as strengthening quality management, optimizing the production flow and the like to reduce the loss risk, ensure the profit of the enterprise, and the enterprise can adjust the resource allocation, prioritize or adjust the production schedule to reduce the loss cost to the maximum extent and optimize the resource utilization.
The step of obtaining the production step efficiency within the threshold phase such that after the step of obtaining the loss cost of the product reaching the standard loss evaluation interval, comprises:
s804, acquiring production ladder efficiency in a threshold stage;
s805, acquiring dynamic order data delivery time in a production task;
s806, acquiring a difference value of delivery time according to the delivery sequence;
s807, acquiring a delivery difference efficiency interval;
s808, dividing the production ladder efficiency in the threshold stage into priority efficiency intervals corresponding to the delivery difference efficiency intervals according to the delivery difference efficiency intervals;
s809, selecting production ladder efficiency in the corresponding priority efficiency interval according to the difference value of delivery time.
In the steps S804 to S809, first, according to the previous steps, the production ladder efficiency in the threshold stage is determined, so that the loss cost of the product reaches the standard loss evaluation interval, the delivery time of each order is obtained from the production task, the delivery time difference between adjacent orders is calculated according to the order delivery sequence in the production task, the difference between the delivery times is divided into different efficiency intervals according to the difference between the delivery times, the production ladder efficiency in the threshold stage is corresponding to the delivery difference efficiency interval, the priority efficiency interval is determined, the production ladder efficiency in the corresponding priority efficiency interval is selected according to the delivery time difference of the order, so as to ensure that the product can be delivered on time, the production priority can be adjusted according to the emergency degree of the delivery of the order by dividing the efficiency interval according to the delivery time difference, the timely delivery of the emergency order is ensured, the difference between the production ladder efficiency and the delivery time is associated, the resource utilization efficiency is more reasonably configured, the resource waste is avoided, the on-time production completion of the product can be ensured by selecting the production ladder efficiency in the corresponding priority efficiency interval, and the customer satisfaction of the product can be promoted in the delivery time.
Referring to fig. 2, the present invention further provides a system for managing work in progress based on a virtual transfer library, which is used for the method for managing work in progress based on the virtual transfer library, and includes:
the information extraction module is used for acquiring work-in-process information in the virtual transit warehouse and production tasks in the production workshop, wherein the work-in-process information comprises types and production quantity, and the production tasks comprise static manufacturing data, dynamic order data and inventory data;
the judging module is used for acquiring the standard production efficiency of the product on the production line and determining whether the production line meets the production task according to the standard production efficiency and the production task;
the step efficiency module is used for obtaining the production cycle of the product and gradually improving the production efficiency in the production cycle step by step to obtain the production step efficiency;
the quality judging module is used for obtaining the yield and the defective rate in the production step efficiency of the steps in the production period, and obtaining the standard defective cost produced according to the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and repair defective products, and the defective products are not recorded as defective products when the repair defective products meet the production requirements;
the splitting module is used for acquiring effective material parameters split in the defective products, wherein the effective material parameters comprise effective material types and corresponding amounts, and the effective material parameters are used as standby materials;
The material supplementing module is used for selecting corresponding materials from the standby materials when the materials in the production task are insufficient, and stopping the supply of the standby materials after the materials are supplemented;
the trend analysis module is used for obtaining a loss cost change trend according to the defective rate and the defective cost;
the management and control module is used for acquiring the loss cost in the production period, acquiring a threshold stage of the loss cost change trend in the production period according to the standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval.
The information extraction module is responsible for extracting required work-in-process information and production task data from a virtual transfer warehouse and a production workshop, wherein the work-in-process information comprises types and production quantity, the production task comprises static manufacturing data, dynamic order data and inventory data, the judgment module is used for acquiring work-in-process standard production efficiency on a production line and determining whether the production line meets the production task according to the standard production efficiency and the requirement of the production task, the bottleneck and the deficiency of the production line can be timely found by comparing the standard production efficiency with the requirement of the production task, the bottleneck and the deficiency of the production line are conducive to early adjustment of a production plan and resource allocation, the ladder efficiency module acquires the production cycle of the work-in-process, the production efficiency in the production cycle is gradually improved according to a set strategy to form production ladder efficiency, the overall efficiency and the capacity utilization rate of the production line can be effectively improved by the ladder improvement of the production efficiency, the quality judging module is used for obtaining the yield and the defective rate in the production ladder efficiency of the ladder in the production period, calculating the defective cost under the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and reprocessed defective products, the quality condition and the cost condition of the production line can be better evaluated by classifying the defective products and calculating the cost, the splitting module is used for obtaining the split effective material parameters in the defective products and taking the effective material parameters as standby materials, when the materials in the production task are insufficient, the system can automatically select corresponding material supplementation from the standby materials, which is beneficial to avoiding production interruption caused by material shortage, ensuring the smooth progress of the production task, analyzing the change trend of the loss cost according to the defective rate and the defective product cost, analyzing the trend of the loss cost, the method has the advantages that problems can be found timely, corresponding measures are taken for adjustment and improvement, so that the loss cost is reduced, the production efficiency and quality are improved, the management and control module is used for obtaining the loss cost in a production period, a threshold stage of the loss cost change trend in the production period is determined according to a standard loss evaluation interval and the loss cost change trend, then the production efficiency of a product is adjusted according to the production ladder efficiency of the threshold stage, so that the loss cost of the product reaches the standard loss evaluation interval, the overall efficiency and the productivity utilization rate of the production line can be improved through gradually improving the production efficiency and optimizing the production process, meanwhile, the defective rate is reduced, the product quality is improved, the production cost can be effectively reduced through optimizing the production process, reasonably utilizing standby materials and other means, the profitability of enterprises is improved, the production efficiency of the product can better meet the standard loss evaluation interval through analysis and adjustment of the loss cost trend, the stability and reliability of the production line are improved, the comprehensive monitoring and management and control of the production process are realized through the synergistic effect of the information extraction, judgment, analysis and management and control modules and the like, and the management efficiency and decision level are improved.
And a terminal for managing work-in-process of workshops based on a virtual transfer library, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement a method of managing work in progress based on a virtual vault.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
1. A method for managing work-in-process of workshops based on virtual relay libraries, comprising:
obtaining work-in-process information in a virtual transit warehouse and production tasks in a production workshop, wherein the work-in-process information comprises types and production quantity, and the production tasks comprise static manufacturing data, dynamic order data and inventory data;
Obtaining standard production efficiency of products on a production line, and determining whether the production line meets production tasks according to the standard production efficiency and the production tasks;
obtaining the production cycle of the product, and gradually improving the production efficiency in the production cycle stepwise to obtain the production step efficiency;
obtaining the yield and the defective rate of the steps in the production period in the production step efficiency, and obtaining the standard defective cost produced according to the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and reprocessed defective products, and the reprocessed defective products are not marked as defective products when the reprocessed defective products meet the production requirements;
obtaining effective material parameters of the split defective products, wherein the effective material parameters comprise effective material types and corresponding amounts, and the effective material parameters are used as standby materials;
when the materials in the production task are insufficient, selecting corresponding materials from the standby materials, and stopping the supply of the standby materials after the materials are supplemented;
obtaining a loss cost change trend according to the defective rate and defective cost;
and acquiring the loss cost in the production period, acquiring a threshold stage of the loss cost change trend in the production period according to the standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval.
2. The method for managing work in progress based on virtual staging garage according to claim 1, characterized in that the step of determining whether the production line satisfies the production task according to the standard production efficiency and the production task comprises:
obtaining to-be-produced quantity according to the order quantity of the product and the inventory data in the production task;
acquiring delivery production efficiency according to the delivery time, and comparing the delivery production efficiency with standard production efficiency;
if the delivery production efficiency is smaller than the standard production efficiency, the current production efficiency of the product can meet the requirement of the production task according to the standard production efficiency;
if the delivery production efficiency is greater than or equal to the standard production efficiency, the current production efficiency of the product cannot meet the requirements of production tasks according to the standard production efficiency, and the production efficiency needs to be improved.
3. The method for managing work-in-process based on virtual transfer library according to claim 2, wherein the step of obtaining the production cycle of work-in-process and stepwise increasing the production efficiency in the production cycle to obtain the production step efficiency comprises the steps of:
acquiring a production period;
equally dividing the duration of the production period into a plurality of production stages according to the production period;
The production efficiency in the production stage is improved stepwise according to the division sequence of the production stage, and a plurality of production ladder efficiencies of the production period are obtained.
4. The method for managing work-in-process of workshops based on virtual-intermediate-warehouse management according to claim 1, wherein the step of obtaining a loss cost variation trend according to the defective rate and defective cost comprises:
obtaining the yield and the defective rate of the steps in the production step efficiency of the steps in the production period;
obtaining the defective cost of the standard production efficiency of the product;
obtaining loss cost according to the defective rate of the production ladder efficiency and the defective cost of the standard production efficiency;
a trend evaluation model is obtained, and a trend evaluation function is obtained from the trend evaluation model;
inputting the loss cost in the production period into a trend evaluation function, wherein the output value is a loss cost trend value;
if the value of the loss cost trend value is smaller than zero, the loss cost in the production period is indicated to be reduced;
if the value of the loss cost trend value is larger than zero, the loss cost in the production period is indicated to be increased.
5. The virtual staging library-based shop work-in-process management method according to claim 4, wherein the trend evaluation function is:
Wherein Q is expressed as a loss cost trend value, i is expressed as a number of loss costs in a production period, n is expressed as a total number of loss costs in the production period, S is expressed as loss costs in the production period, L is expressed as a standard defective rate, C is expressed as defective cost, and S should be the cost of removing defective products which meet production requirements and the cost of effective material parameters.
6. The method for managing work-in-process based on virtual transfer library according to claim 3, wherein the steps of obtaining the cost lost in the production cycle, obtaining a threshold stage of the cost lost in the production cycle according to the standard loss evaluation interval and the cost lost change trend, and adjusting the production efficiency of the work-in-process according to the production ladder efficiency of the threshold stage, so that the cost lost in the work-in-process reaches the standard loss evaluation interval, comprise:
obtaining the loss cost of the production ladder efficiency in the production period;
according to the standard loss evaluation interval and the dividing sequence of the production stages, the production ladder efficiency is compared with the delivery production efficiency one by one, and the threshold stage of the loss cost change trend in the production period is judged;
if the loss cost in the production period is reduced and the production ladder efficiency is greater than the delivery production efficiency, indicating that the production ladder efficiency greater than the delivery production efficiency is the minimum efficiency stage, and the production ladder efficiency after the minimum efficiency stage is the threshold stage;
If the loss cost in the production period is increased, the production ladder efficiency is greater than the delivery production efficiency, and the loss cost is smaller than the standard loss evaluation interval, the production ladder efficiency greater than the delivery production efficiency is indicated to be a minimum efficiency stage, the production ladder efficiency in which the loss cost after the minimum efficiency stage is greater than the standard loss evaluation interval is indicated to be a maximum efficiency stage, and the production ladder efficiency in the minimum efficiency stage and the maximum efficiency stage is indicated to be a threshold stage;
and obtaining the production ladder efficiency in the threshold stage, so that the loss cost of the product reaches the standard loss evaluation interval.
7. The method for managing workshops in process based on virtual-transfer-warehouse of claim 6, wherein the step of comparing production ladder efficiency with delivery production efficiency one by one according to the standard loss evaluation section and the division sequence of production phases, and determining the threshold phase of the loss cost variation trend in the production cycle, further comprises:
if the cost of loss in the production cycle is increased and the cost of loss is greater than the standard loss evaluation interval, the cost of loss of step efficiency in the production cycle is higher than the standard loss evaluation interval, and the product is in a high-loss order.
8. The virtual staging garage-based method of managing work-in-process according to claim 6, wherein the step of obtaining production ladder efficiency within a threshold stage such that a loss cost of work-in-process reaches a standard loss assessment interval comprises:
acquiring production ladder efficiency in a threshold stage;
acquiring dynamic order data delivery time in a production task;
acquiring a difference value of delivery time according to the delivery sequence;
acquiring a delivery difference efficiency interval;
dividing the production ladder efficiency in the threshold stage into a priority efficiency interval corresponding to the delivery difference efficiency interval according to the delivery difference efficiency interval;
and selecting the production ladder efficiency in the corresponding priority efficiency interval according to the difference value of the delivery time.
9. A system for managing work in progress based on a virtual transfer library, which is applied to the method for managing work in progress based on a virtual transfer library as claimed in any one of claims 1 to 8, and is characterized by comprising:
the information extraction module is used for acquiring work-in-process information in the virtual transit warehouse and production tasks in a production workshop, wherein the work-in-process information comprises types and production quantity, and the production tasks comprise static manufacturing data, dynamic order data and inventory data;
The judging module is used for acquiring the standard production efficiency of the product on the production line and determining whether the production line meets the production task according to the standard production efficiency and the production task;
the step efficiency module is used for obtaining the production cycle of the product and gradually improving the production efficiency in the production cycle step by step to obtain the production step efficiency;
the quality judging module is used for obtaining the yield and the defective rate in the production step efficiency of the steps in the production period and obtaining the standard defective cost produced according to the standard production efficiency, wherein the defective products comprise industrial waste defective products, material waste defective products and reprocessed defective products, and the reprocessed defective products are not recorded as defective products when the reprocessed defective products meet the production requirements;
the splitting module is used for acquiring effective material parameters split in the defective products, wherein the effective material parameters comprise effective material types and corresponding amounts, and the effective material parameters are used as standby materials;
the material supplementing module is used for selecting corresponding materials from the standby materials when the materials in the production task are insufficient, and stopping the supply of the standby materials after the materials are supplemented;
the trend analysis module is used for obtaining a loss cost change trend according to the defective rate and the defective cost;
The management and control module is used for acquiring the loss cost in the production period, acquiring a threshold stage of the loss cost change trend in the production period according to the standard loss evaluation interval and the loss cost change trend, and adjusting the production efficiency of the product according to the production ladder efficiency of the threshold stage so that the loss cost of the product reaches the standard loss evaluation interval.
10. A terminal for managing work-in-process of a workshop based on a virtual transfer library, comprising:
one or more processors;
a storage device having one or more programs stored thereon;
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the method of managing workshops in progress based on virtual relay stores of any of claims 1-8.
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