Applied Mechanics and Materials Vols. 602-605

Abstract: According to the characteristics of the greenhouse environmental control, application priority adjustment principle and fuzzy control theory, designed for greenhouse temperature, humidity, CO2 concentration and other environmental factors in the automatic control of intelligent wireless agriculture greenhouse control system. Using RTL8019AS chip access Ethernet, using TCP/IP protocol implementation and PC communication, intelligent controller using fuzzy control technology to the greenhouse temperature, humidity and so on, can satisfy the different sizes of the needs of the intelligent wireless agricultural greenhouses.

Abstract: In order to resolve the problem of security monitoring and management for the elderly, children and employees of enterprises, and meet the application needs of protecting the information of stolen mobile phones, so designed an intelligent personnel management system based on Android mobile phone. The monitoring side and the monitored side both used smart phones and transferred data to each other via the server in system. This system was available in real-time location query, historical route reviewing, distress alerting emergency, security protection of privacy information and other functions. The simulated and practical test shows that the system runs in good condition and could provide real-time and effective information for related personnel, so it has a pretty promising.

Abstract: Automobile drum test bench is conducted test car's dynamic economy tests, special test equipment emissions performance evaluation and analysis of the simulated vehicle right road resistance is the key to drum test rig. This paper first describes the electrical simulation theory cars with resistance and inertia, and the establishment of automobile roads resistance electrical simulation mathematical model of the software platform drum bench and control system is analyzed and designed and conducted inertia simulation control mode the test results showed that inertia simulation control and reliable operation.

Abstract: The sensor is an important part of the active magnetic bearing system, which directly affects the performance of the entire system. Compared with the eddy current sensor, inductive sensor has the advantages of low cost, high sensitivity, and is not sensitive to the electromagnetic environment; Influenced by the ambient temperature is small. In this paper, design research from two aspects of the sensor structure and circuit, and the sensor was simulation analysis, which laid the foundation in the application of magnetic bearing systems.

Abstract: In this paper, microcontroller is applied in the central air conditioning control system. Firstly, microcontroller controller is used as controlling core to control temperature and humidity of central air conditioning control system. Secondly, PID algorithm parameters are set up for improving traditional PID control principle. Lastly, input and output values can be set and displayed by LCD screen.

Abstract: In this paper, hardware and software of the central air-conditioning control system is researched by STC series of enhanced 8051 microcontroller. The STC11F 08XE is the main control of the hardware part. Temperature and humidity sensor regulating valve and all kinds of motor are used as external equipment to complete the temperature and humidity of building the internal control of central air conditioner. In terms of software, the program is described by protel99SE software. Microcontroller program is compiled by Microcontroller development tools keil u and STC-ISP. The temperature and humidity control and optimization of central air conditioning are completed by PID parameters. Infrared control unit is operated and liquid crystal is displayed to show the operation results.

Abstract: In this paper, a new multi-motion pattern bionic robot was proposed by us. Though we analyzed the robot as a hybrid series-parallel mechanism, the robot is a wheeled-legged robot, and a new methods for constructing the kinematic model of the special four-bar mechanism of the robot very quickly and efficiently was introduced. Then, the kinematic model of the parallel mechanism of the multi-motion mode bionic robot was constructed when the robot was in the stance phase.

Abstract: Through the analysis of technical performance indicators of the gear teaching simulator, main technical indexes and design goals of electric control system are proposed; Scheme of electrical control system is analyzed; Control systems, controlled variables, operating variables and detection devices are selected. For the realization of electric control system design of the gear teaching simulator, improving the performance of the gear teaching simulator, it has an important guiding significance.

Abstract: Algorithm encryption of wavelet image which has excellent localization property in time domain and frequency domain can locate graphic information having different directional characteristics into any precision level in certain extent. It has feature matched with human visual characteristics because of the disappearance of blocking effect and the noise. The article first analyzes the wavelet transformation principle of image model in feature extraction process and the second iteration process. Dynamic image feature extraction model can be established using this method in robot vision system. The result of envelope is more realistic and the effect is obvious. The application of the diversity training to project and contrast, the comparison precision is high and relative error is low.

Abstract: The idea of self-synchronization vibrating system comes from the phenomenon of synchronization. In the 1960s, Blekhman^[1,2] proposed the self-synchronization theory of vibrating system driven by two induction motors. When the structure parameters of the two motors met the requirements, the system could operate synchronously. Blekhman^[3] also found that even if the rotating speed and the angular phase difference of the two eccentric rotors were being disturbed or one of the motors was powered off, the system could still operate synchronously. The small parameter methods were applied to a number of problems by R.F. Nagaev^[4]. It can lead to better understanding of the self-synchronization theory. Wen Bang-chun^[5] applied self-synchronization theory to engineering and established a branch of the vibration utilization engineering, and numerous self-synchronous vibrating machines were invented.