The calculation system of an actual production and processing of electric ball valve orders will always be subject to interference from within and outside the system during the operation of the calculation system of an actual production and processing of electric ball valve orders. When the fluctuation exceeds a certain limit, it will have an impact on the realization of the planned objectives in a certain period of the planning period, And the impact will also affect the subsequent planning period. In this case, the original plan must be adjusted. The production management of the manufacturing system can be divided into the plan making stage and the plan execution stage in terms of the production plan.
In the planning stage, the main task is to make feasible arrangements for the activities of the manufacturing system in the future, and specify the amount of tasks to be completed; On the other hand, the problems in the implementation of the plan should be fed back to the relevant departments in a timely manner. If necessary, it is necessary to make a necessary decision for the production task of electric ball valve products in the next stage. The first problem to be solved for the update of four column hydraulic press equipment and system is the length of the update cycle. The update cycle is the interval between two adjacent updates of the network. The length of the update cycle has a great impact on the operating efficiency of the system. A longer update cycle is beneficial to maintaining the stability of the plan,
At the same time, the system operation cost can be saved; However, if the update cycle is too long, it is easy to make the response of the plan to system changes too slow, thus causing new fluctuations. The shorter update period is conducive to timely reflecting the changes in the calculation system of the order for production and processing of electric ball valves into the plan; However, if the update cycle is too short, it is easy to make the planning system too sensitive, making the calculation system for the production and processing of electric ball valve orders always in a tight state, and at the same time increasing the system operating costs. This shows that it is very important to correctly select the update cycle.