| In production orders based discrete manufacturing companies, most of them take more variety, small batch production mode mixing process to achieve more personalized consumer products, diversification requirements. Order-oriented manufacturing enterprise production process, due to, a wide range of workshop materials, varying the number, the processing time is not fixed and so on, therefore, to design a complete workshop materials on time delivery embodiment and intelligent materials on time delivery system this mode of production to ensure smooth operation.The traditional pull delivery, periodical delivery belong to the passive delivery, they would often not timely delivery, imprecise, irrational behavior, leading to lack of material inventories edge line or backlog. Existing JIT Material Delivery lack of on-site processing of real-time operating mode, there is no complete set of effective implementation. For more research status, this thesis make a research on the following sections:(1) System Research on key technologies and materials on time delivery method. In order to solve the material on time delivery of real-time data acquisition and optimal material delivery and the best delivery time window number indeed. This paper begins with workshop materials on time delivery of several key problems, we studied:delivery time, quantity and frequency. Improved use of time penalty function formula and the method of combining analysis chart obtained optimal delivery time, the best delivery quantity. Meanwhile, according to "a number of vehicles," the idea of a minimum delivery planning trips, the use of high moral map works best path planning, then, RFID-based real-time data acquisition technology and electronic billboards real number data monitoring, traceability, avoid lag due to material delivery information transmission, and delivery of materials appears not timely, inaccurate, unreasonable phenomenon.(2) Multiobjective workshop materials on time delivery model. The actual production process, often there will be some issues that affect the dynamic factors punctual delivery of materials, such as:real-time operating conditions change, emergency insertion orders, change station adjustment. This dynamic factors will bring changes in delivery costs, delivery period, delivery trips, etc., so this article is set to the shortest possible delivery time, delivery times and low minimum delivery costs for the multi-target, on time delivery of materials to establish multi-objective mathematical model, and with improved hybrid PSO to optimize this delivery model. With two further pressure rail device a paper machinery company’s actual case examples were analyzed, and the model was validated using MATLAB simulation analysis software.(3) Design a kind of workshop material on time delivery system implementation plan. In order to solve the lack of JIT production mode, establish a set of effective overall implementation of the programme in material delivery information management thought. This article specifically binding material on time delivery of some key technologies and methods, as well as JIT delivery model, design a set of complete workshop of JIT delivery system implementation plan, and in the form of two-dimensional, three-dimensional flowchart more image describe the operation process. At the same time, in view of the design of the workshop material on time delivery system implementation plan, the use of UML, VS2005 and SQL2008 and other modeling tools to build a prototype system, verify the correctness and feasibility of the design program. |
PDF Full Text Request