Research On Disposal Plan And Scheduling Of Energy Meter Reuse

Due to the problems of unbalanced cycle workload,increasing inventory and decreasing inventory turnover rate in the implementation of the manual work plan and periodic work-piece scheduling for the reuse and disposal of Energy Meters,the manual and extensive compilation plan of the city-level metering center of CNCC can not meet the new requirements of the lean asset management for the disposal of Energy Meters,we need to explore and innovate in planning and scheduling.In this paper,the method of operational research is applied to optimize the disposal scheme of energy meter,and achieve the research goal of the lowest cost and the shortest cycle time.By comprehensively combing the three processes of energy meter reuse disposal,namely sorting,checking and clearing,we find out how to make the disposal plan of each cycle under the situation of dynamic change of production task,is the key to achieving cost minimization.At the same time,on the basis of clearing up the relations among the processes,combined with the fact that each production cycle has to go through three processes,which are serial first,then parallel and finally serial,and different types of devices have different time-consuming characteristics in different processes,it is found that how to solve the scheduling problem of different types of devices in different processes in a single production cycle is the key to achieve the goal of the shortest cycle time.In order to solve the above problems,we first consider the inventory cost,overtime cost and the cost of returning a bad watch to the factory,and then construct a reuse disposal work plan model,which can be solved by using the Branch and bound method,get the optimization method of planning.By changing the parameters of sensitivity analysis,explore the impact of production parameters on the optimization results.Secondly,the task scheduling model of switch-back-to-table is constructed by considering the type of watt-hour meter and the type of worktable.A fast and effective solution is found through the way of algorithm design,and the final optimal scheduling scheme with capacity constraints is obtained.Finally,the validity of the model and algorithm is proved by comparing the actual data of L City metrology center.This paper can provide reference value for the optimization problem of production practice with the characteristics of multi-stage process and multi-type workpiece.The results show that:(1)compared with the traditional manual programming,the proposed model can reduce the cost.(2)the established job scheduling model can be used to obtain a reasonable scheduling with the shortest total processing time in a single work processing cycle.