Automatic stereo library , is a new concept in logistics warehousing. use Stereoscopic library Room equipment can realize the rationalization of warehouse high-rise, access automation and simple operation; Automated stereoscopic library was a method with high skill level at that time. The main body of the automated stereoscopic warehouse is composed of shelves, roadway stacking cranes, inbound (outbound) working platforms, and active inbound (outbound) and operation control systems. The rack is a building or structure of steel structure or reinforced concrete structure. The rack is a standard size cargo space. The lane stacking crane runs through the lane between the racks to complete the storage and picking up work. Computer and barcode skills shall be used for handling.
The planning of each automated stereoscopic library is divided into several primary stages, and each stage has its own policy to reach.
（1） Preparation before planning
1. Understand the site conditions of the reservoir construction, including climate, terrain, geological conditions, ground bearing capacity, wind and snow loads, seismic conditions and other environmental impacts.
2. In the overall planning of the automated stereoscopic warehouse, multiple disciplines such as machinery, structure, electrical, civil engineering, etc. intersect and constrain each other, which requires the third-party logistics enterprises to consider the needs of each discipline when planning. For example, the movement accuracy of machinery should be selected according to the accuracy of structural manufacturing and the settlement accuracy of civil engineering.
3. It is necessary to draw up the investment, personnel and equipment plans of the third-party logistics enterprises for the warehousing system, so as to determine the degree of planning, mechanization and automation of the warehousing system.
4. It is necessary to inquire about other conditions related to the warehousing system of the third party logistics enterprise, such as the source of goods, the traffic condition connecting the warehouse, the packaging of goods, the method of transferring goods, the final destination of goods and the means of transportation.
（2） Selection and planning of storage yard
The selection and placement of storage yards are of great significance to the infrastructure investment, logistics costs and labor conditions of the storage system. Considering the urban planning and the overall operation of the third-party logistics enterprises, the automated three-dimensional warehouse Z is preferably located close to the transportation hubs such as ports, docks, freight stations, or the production place or raw material origin, or close to the primary sales market, which can greatly reduce the costs of third-party logistics enterprises. Whether the storage yard address is reasonable also has certain influence on environmental protection and urban planning. For example, choosing to set up an automated stereoscopic library in a business district with traffic constraints, on the one hand, it is not in harmony with the rich business environment, on the other hand, it costs high prices to buy land. Z The important thing is that because of traffic constraints, it is obviously unreasonable to have to deliver goods in the middle of the night every day.
（3） Determine warehouse method, operation method and mechanical equipment parameters
The warehouse method requirements are determined based on the query of the receipt goods category. Generally, the warehouse with unit cargo pattern is selected. If the type of goods stored is single or few, and the quantity of goods is large, the through warehouse with gravity shelf or other methods can be selected. Determine whether to require stacking and picking according to the process requirements (whole cell or sporadic receipt/issue) of receipt/issue. If picking is required, determine the method of picking.
There is another operation method often selected in the automated stereoscopic warehouse, which is the so-called "free location" method, that is, goods can be put into storage nearby, especially for goods that are frequently put into storage and over long and overweight, they should be operated near the arrival and delivery addresses as far as possible, which can not only shorten the time of putting out and putting in storage, but also save transfer costs.
There are many kinds of mechanical equipment used in automated three-dimensional warehouse, generally including roadway stacker, continuous conveyor, high-rise shelf, and active guided vehicle with high degree of automation. During the overall planning of the warehouse, the mechanical equipment suitable for Z should be selected according to the warehouse planning, the type of goods, the frequency of warehousing and unloading, and the primary parameters of these equipment should be determined.
（4） Method and standard for determining the unit of goods
Because the condition of automated stereoscopic warehouse is the transfer of unit, it is a very important problem to determine the method, scale and weight of goods unit. It will affect the third-party logistics enterprises' contribution to the warehouse, and will affect the equipment, equipment and other issues of the entire warehousing system. Therefore, in order to reasonably determine the method, scale and quantity of goods units, all possible methods and standards of goods units should be listed according to the results of query and calculation, and reasonable selection should be made. For those goods with special shape and size or heavy weight, they can be handled alone.
（5） Assertive library capacity (including cache)
Warehouse capacity refers to the number of goods units that can be contained in the warehouse at the same time, which is a very important parameter for automated three-dimensional warehouse. Because the inventory cycle will be affected by many unexpected factors, the peak value of the inventory sometimes greatly exceeds the actual capacity of the automated stereo library. In addition, some automated stereoscopic warehouses only consider the capacity of the shelf area and ignore the area of the buffer area. As a result, the area of the buffer area is insufficient, making it impossible for goods in the shelf area to get out and goods outside the warehouse to get in.
（6） Distribution of warehouse area and other areas
Because the total area is certain, many third-party logistics enterprises only pay attention to the area of office and experiment (including research and development) when creating automated three-dimensional warehouse, but ignore the area of warehouse, which forms this situation, that is, in order to meet the demand of warehouse capacity, they have to meet the requirements through space development. However, the higher the shelf, the higher the cost of purchasing and operating machinery and equipment. In addition, because the Z-optimal logistics road in the automated three-dimensional warehouse is linear, but it is often constrained by the plane area when planning the warehouse, which creates a circuitous logistics road (often S-shaped, or even mesh), which will add many unnecessary inputs and annoyances.
（7） Matching of personnel and equipment
No matter how high the degree of automation of the automated stereoscopic warehouse is, the detailed operation still requires certain manual labor, so the number of staff should be appropriate. Lack of personnel will reduce the power of the warehouse, and too much will lead to waste. The automated stereoscopic warehouse uses a lot of advanced equipment, so it has high requirements for the essence of personnel. The essence of personnel cannot keep up, which will also reduce the throughput of the warehouse. Third party logistics enterprises need to recruit and train special talents.
（8） System data transmission
Because the data transmission path is not smooth or the data is redundant, the system data transmission speed will be slow, or even unable to transmit. Therefore, the problem of information transmission within the automated stereoscopic library and between the upper and lower management systems of third-party logistics enterprises should be considered.
（9） All operational talents
There is a problem of cask effect in the upstream and downstream of the automated stereoscopic warehouse and the coordination of its internal subsystems, that is, the board with the shorter Z determines the capacity of the cask. Some warehouses use a lot of high-tech products, and all kinds of equipment are complete. However, due to poor coordination and compatibility among subsystems, the overall operation ability is much worse than expected.
