Research On The Optimization Of Entrance And Exit Position And Shelf Size Of 3D Compact Automatic Access System Under Double Command Period

The basic function of the warehousing system is to provide the storage function of items,which is an indispensable part of modern logistics and transportation.With the continuous increase of land and construction costs,the requirements for storage capacity are also getting higher and higher,and the storage system is becoming more and more compact.At the same time,with the increase in the number of orders and the shortening of the customer demand cycle,higher requirements are placed on the working time and efficiency of warehousing staff.The efficiency of warehousing occupies an important part of the overall efficiency of the supply chain,which means that it must be paid to The higher salary of warehousing staff will undoubtedly increase the cost.The above factors make the enterprise’s demand for automated warehousing more urgent.In this thesis,from the perspective of how to improve the storage efficiency of logistics enterprises,based on the perspective of storage compaction to study related issues of automated storage,the three-dimensional compaction system in the automated storage system is studied.First of all,the thesis systematically and comprehensively combs the design and operation of the storage system at this stage and the relevant theoretical research results of the three-dimensional compact automatic access system,leading to the purpose of this research.Secondly,the thesis adopts the dual command storage mode,that is,the storage of goods and the picking of goods occur at the same time.By studying the expected travel time of the system in the dual command storage mode,the expected time model is established to determine the optimal position of the three-dimensional compact storage system entrance.Third,the thesis aims at the system entrance and exit located at the midpoint of the bottom of the shelf,by establishing the system expected travel time model under the double command cycle,considering the storage system entrance and exit is located at the midpoint of the bottom of the shelf and adopts the dual command cycle storage mode,in order to make The storage space is maximized and the system size is optimized.The thesis research provides theoretical guidance and practical reference for practically improving the efficiency of logistics pneumatic storage and reducing costs.