In this paper, the design of data acquisition system of intelligent community based on USB interface is developed, the method and process of design scheme, a set of data acquisition system composed of the United States of America Cygnal company's C8051F320 chip on the development, and proposes the implementation, through the practice has proved the feasibility of the scheme.

The biogas generator temperature control is very important to the temperature of the biogas generator for effective control, So the temperature must be monitored. Pre-estimated by measuring the temperature and fast temperature control is the most effective means. In this paper, using time series analysis method, we establish three prediction models, which are namely autoregressive model, moving average model, hybrid model. By comparison of three models, the final choice to predict the temperature of the biogas generator is mixed model analysis of time series. The test error is very small, indicating that the method has some practical value.

The distribution grid communication network is an important part of electric power communication system. But it has became a limit of distribution network for the absence of effective communication method. This paper first introduces the characteristic and information requirement of smart distribution network, then makes a deep research and comparison on the communication technology such as PONWireless Network and PLC. Finally it presents a technology application scheme and system structure of distribution communication network.

This paper an analysis of the present teaching of electric control system of the office building,the use of RF wireless communication technology combined with single chip microcomputer, using infrared technology, through the central control room for the entire teaching office lights and other electrical equipment for centralized, reasonable control; to ensure the stability of the system.

Based on the existing LED (light emitting diode) chip waxing machine running in single-station serial mode, a multi-station LED chip waxing machine was designed which made creative improvements on the revolving platform of the waxing machine. Working efficiency was greatly increased with multi-station continuous parallel working mode. The control system used genetic algorithm-based PID (proportion integration differentiation) control to precisely control the revolving platform and all the manipulators, so that the waxing machine would carry out the fully automated assembly line work.