Applied Mechanics and Materials Vols. 427-429

Abstract: Along with the development of advanced control system, in order to achieve the goal of low energy consumption, low pollution and high degree of automation, the coordination matching work of the motor driving electric motor car and the car body has a better future. By using GW48 hardware development platform and the SOPC technology of nuclear NiosII in FPGA as the central processing unit, and with the aid of the Avalon the peripheral circuit of the motor driving electric motor car is completely under control. This is a improvement of the classic control of the motor (i.e. based on single chip or DSP motor control). This article introduces the design method of the drive control system for electric motor cars. A function module design is conducted for the hardware part, which includes the PWM module and control module, and the PWM module and the VHDL language program is used to form the interface function module. A overall design discourse is conducted for the the software part, design processes of each function module are expounded in this paper. Finally the experimental results are given and they have been analysed. The experiment proves that the precision of SOPC technology in the application of electric motor drive control is high and the application is reasonable. It may become the trend of the development of the electric motor cars in the future.

Abstract: This paper was based on the rich theoretical foundation and practical teaching experience, and focused on current teaching situation of high frequency electronic circuit and the cognition of simulation and demo, then it had the positive analysis on the superiority of simulation and demo in high frequency electronic circuit, and it also got the teaching case analysis on simulation and demo of parallel resonant circuit in the high frequency electronic circuit. Through establishment and verification of teaching effect model of high frequency electronic circuit, it can obtain that the teaching presents the advantage of positive feedback through the simulation and demo, and it also can provide new theoretical basis and path of exploration for the teaching research in this field.

Abstract: RFID chip has been more and more widely applied in all walks of life, which makes enormous contribution for the economical use of the social resource, however the RFID chip of electromagnetic compatibility problem always restricts the development of this technology. From the RFID chip's concept, operation principle and the structure analysis, at the same time RFID chip electromagnetic compatibility design is confronted with problems, measurement methods and other aspects, to carry out research and analysis, so as to establish a set of practical and standard chip design system.

Abstract: Currently, for ODU that is widely used in microwave communication system, failure caused by power supply accounts for a large proportion. This paper analyzes the composition and characteristics of ODU, and proposes an innovative ODU power supply backup method, and thus achieves the purpose of effectively improving the reliability of ODU.

Abstract: The communication by power line carrier has been became the mainstream of the communication technology. With the development of science and technology, this technology is no longer limited to communications. Remote control system research based on the technology has been developed into a very hot topic at present. But the remote monitoring system design are not identical, and it caused many remote monitoring system appear to the compatibility problem. The paper firstly established the model of the power line carrier communication technology, and then on the basis of this model, completed remote monitoring system design research. This paper mainly took the current very hot intelligent household as a case study, and then spread the monitoring system according to the practical, and it have a description of the design about remote control system of power line carrier communication technology. The paper makes important theoretical basis for the other USES of remote monitoring system design based on this technology.

Abstract: With the development of science and technology, the controller is widely used in various fields, and control performance is also more and more accurate. In recent years, PID technology is thorough research discuss in many fields, and PID are still not thoroughly solved in online and offline optimization problems. Based on this, this paper introduces the PI controller from the two aspect of the parameter design and online optimization, and the introduction of a new method-fuzzy algorithm, to solve the on-line optimization problem of PI controller parameters in the process of PLC designing, and the program is brought into MATLAB software simulation, to prove the correctness of the program. Finally, this paper presents PI controller with some deficiencies, and provides theory reference for the PI controller parameters optimization.

Abstract: Every minute heartbeat cycle number is vital important signals, the vital signs of ICU patient are an important reference index that is diagnose and treated by doctor, and heart rate monitoring is very important work in ECG monitoring. First of all, the generation and development of the Markov model are introduced, and the analysis of ICU heart rate monitoring, on this basis, to build intensive care heart rate monitoring analysis model based on the Markov model, so as to get scientific heart rate estimation and to provide data support for physicians comprehensive analysis, and to a certain extent, to provide a theoretical support and practical new method for this field research.

Abstract: In order to meet the requirements of industrial production, to obtaine good computer flow ratio control system, the computer flow ratio control system based on network instrument has been designed. The design regards networked instrument as the medium of information exchange, and gives the computer flow ratio control system design and implementation scheme, focuses on the analysis of the network equipment application in the design of computer flow ratio control system. The design first give the significance of flow ratio control in the actual production process; then expound the mechanism of system debugging; after that, combine with the characteristics of network instrument, put forward the design scheme of flow ratio control system, and carry on some research on it;finally, draw the conclusion by making comparison. The design results show that, the system has high control precision and stability, which can obtain good control effect, meet the requirement of production process.

Abstract: The temperature monitoring control is the most basic data parameters of the daily life and industrial production; it also has very important significance in multi-point temperature collection, accurate measurement and control monitoring. Therefore, this paper was based on SCM to deal with the temperature information data, design the multipoint temperature monitoring system, design the function of multipoint temperature collection and control network monitor system and main program, subroutine and so on. At the same time, this paper expounded the design methods of temperature acquisition, calculation and display. It used the thermistor temperature sensor to measure real-time temperature of the periphery environment, and voltage change that transformed from the measured temperature was transmitted to ADE0708 converter for modulus conversion, and the number was input to the serial interface and dealt with computer software to output conversion by SCM, digital tube was displayed in digital sections, it was the real-time temperature value. According to the converter channel port it could set output driving control signal, the display light had status indication and adjustment and control.

Abstract: At present, basketball training needs more scientific training methods and techniques. In order to obtain these training methods, it needs to acquisition training information in the process of basketball training. Therefore, in view of basketball training to establish information control system, research on basketball players training characteristics and the law of motion in the process of basketball training, using control theory method to carry out information processing and analysis, and then the use of scoring methods carry out the authority score evaluation on basketball trainings influencing factors, according to the weight values, these are obtained on the basis of the score, then to carry out add sum, finally to obtain the evaluation scores of basketball training information control system. And then according to the weight value, to undertake an analysis of the basketball training control process, the basketball training information control method is put forward. The analysis results show that information control system is mainly manifested in the basketball training information collection and transmission, training scheme decision of coaches decision system as well as the feedback of decision information, which will complete the whole system construction of basketball training information control.