Storage efficiency of the automated storage and retrieval system (AS/RS) is well known by its high storage efficiency, the advantages of automation and high level of information, its operating efficiency has also become the focus of attention. This paper tries to take an automated storage and retrieval system of one manufacturing enterprises for example, analyzing the overall process and detailed steps. Then, Flexsim is used to identify its bottlenecks by providing system. At last, measures are used to optimize the operating efficiency.

A real-time control system with TMS320F2812 DSP microprocessor as a control core for precision variable rate fertilization was designed, which were composed of the power system, DSP microprocessor controller, executive mechanism for variable rate fertilization, data storage module, speed test module and human-computer interaction module. A human-computer interaction interface system based on data storage and graphics was developed and the main control program was programmed. When the control system is working, the fertilizer rate is firstly entered by human-computer interaction interface, nextly the fertilizer rate and speed information are read into the DSP controller, and then the speed information is transmitted to monitor, finally the output pulses needed by motors are calculated, so the fertilizer rate can be controlled accurately. An experiment was conducted in the laboratory environment. The results showed that the error of fertilization rate of each fertilizer element was nitrogen (N: 0.05%), phosphorus (P:0.73%) and potassium (K:1.16%) respectly, and the consistency variability coefficient of fertilization rate of each fertilizer was nitrogen (N: 0.31%), phosphorus (P: 0.32%) and potassium (K: 0.15%) respectly. The control system for precision variable rate fertilization has high precision, good reliability and stability.

This document describes a simple industrial clamping device composed of hinges and a lever in series with, and driven by, a geared stepping motor. The principle of operation and technical characteristics are illustrated, and the clamping force is calculated. The advantages of this innovation are 1) reconfigurable, though adjustment of its levers’ position for clamping different sized work pieces ; 2) environmental conservation, Compared to the hydraulic clamping device and air cylinder clamping device, it has less noises, needs less energy and no pollution.

Urbanization construction requirements of smart grid,and distribution automation is the foundation of smart grid.Because of its own characteristics of the rural power grid, the construction of distribution network is not the same of city construction. This paper from the rural development trend and its characteristics, analysis of the function of rural distribution automation system, and put forward the suitable for rural distribution automation mode from the aspects of main station system,substation,distribution terminal,communication system and feeder automation of several.

A new way of virtual prototype design and analysis for tractor steering system was discussed, by which the function of experimental design and optimization design for the tractor steering system was achieved with three dimensional modeling software, kinematics and dynamics analysis software, finite element analysis software and their secondary development techniques. A non-sideslip analysis system based on VC++ platform for tractor steering system was developed, and the interface between softwares and key development procedures were introduced by using Pro/E, ANSYS and ADAMS softawre analysis techniques and their secondary development techniques. Considering the factors of steering trapezoid rod and the trapezoid basic angle of steering trapezoid mechnism, the relative conclusions were got by the running instance. The experiment results showed that simulation analysis could be achieved without any abundance manual operation and the design analysis efficiency could be improved, which would provided the theoretical base for actual design analysis of tractor.