Applied Mechanics and Materials Vols. 427-429

Abstract: View of the Traveling and firing of the self-propelled artillery, the electronic equipments contained were suffered severe vibration and shock which will have a serious impact on the performance of electronic devices, reducing its combat capability. The physical model of the electronic equipment vibration isolation system is established and the intrinsic parameters of the system are gotten through the analytic method. Then established electronic device isolation test system virtual platform model based on ADAMS. On this platform, by setting different parameters of the simulation of the entire system for vibration analysis, find out the impact of system parameters on the vibration isolation effect. Also simulated self-propelled artillery when traveling and shooting. The analysis results provide certain reference bases for type selection and assignment of the vibration isolation device.

Abstract: The purpose of this paper is to show that a biped robot can walk by an imitation control. It proposes architecture and system for real-time imitation control of a biped robot. Using this method, the operator can interact with the robot to walk. The operator produces trajectory data necessary to start, stop, walk and redirect the robot. We have to send control commands or new angular position values for to the robot as fast as possible. To get intuition how fast the robot should be controlled, its falling time which as the primary time question is discussed. An inverted pendulum calculation example and the real robot fall down experiment were compared in this paper.

Abstract: To realizing the imitation control of the biped humanoid robot, synchronous question is the core problem. Falling time of the robot and reflecting time of the operator both are the components which to real-time control of the robot. If the robot can walk well in limited time, between the two parts time questions, communication time need us to analyze. Based on the imitation control structure of our robot control system, characters of control model and communication system were studied and conclusions show that synchronous control for a robot by a human is difficult to realize and some other stable control methods need to add in the research.

Abstract: In order to study the reliability of the gun contained electronic equipment, take the fire control computer as an example,establish its physical model and then based on the modal analysis theory, dynamics simulation analysis for fire control computer is done by ANSYS. For vibration and shock which cause by the gun firing is harm to the equipment and the measures for vibration resistance is put forward. Through the contrast of the natural frequency of vibration isolated before and after finding that oscillator can effectively reduce the system nature frequency, and this could make the response amplitude is less than the excitation amplitude based on vibration isolator transmissibility curves. It could provide good conditions to ensure the box and its internal printed circuit board to meet the multiplier rule.

Abstract: Robot soccer games are important activities for the research of the system design and intelligent control, but the actual implementation process is often limited to the actual quality and quantity of equipment. A testing method based on virtual prototype software is proposed for the single robot in soccer games on the basis of theoretical analysis of the robot soccer system. A real-time interaction method is realized between the control algorithm and system model. According to the position of the ball and robot fed back from the model, the control program can plan appropriate trajectory and sends command to the left and right wheel, which realizes the real-time tracking of the ball. The simulation and actual combating results show that the method can be used for the simulation of the actual robot soccer games and the optimization of the control algorithm.

Abstract: A speed control servo system based on STM32 is designed in order to realize the rapid, accurate, smooth speed control of rotary table. the system uses embedded microprocessor STM32F103 as the core, using the absolute encoder as the position sensor.The system achieved control of motor speed by PWM (pulse width modulation).Speed and current double loops control is used,and the expert PID control is used as the control algorithm. Through the analysis of the experimental results can be seen that the system has good stability, and the static and dynamic indicators meet the design accuracy.This design basically has reached the requirement of the servo motor speed control system.

Abstract: Carrier aggregation technology is a key technology of LTE-Advanced,which is proposed by 3GPP organization as a 4G technology. This paper describes its application within 230MHz power industry existing authorized spectrum, aggregate the discrete narrowband, combine with some other technologies, such as OFDM, to build an innovative 230MHz power radio broadband communication system to achieve broadband transmission of power data. The laboratory theoretical simulation and pilot project verify that this application effectively take advantage of the power existing spectrum, can fully meet the bandwidth needs of power data transmission, presents a thought to solve the status of existing discrete authorized spectrum and its restriction on power radio data transmission.

Abstract: For the Current, the design of RFID reader based on SCM has large size and not easy to upgrade. This paper conducts a research work on the new design scheme of RFID based on Nios II soft core. The advantage of the design mentioned in the paper is according to the requirements of increasing or decreasing peripheral components. In this design, the System hardware is described in detail and also introduced the control method of RC500.

Abstract: An Anti - collision Algorithms technique would be required in RFID system to reduce conflicts and identify several tabs very quickly and accurately.Binary Search algorithm in a TDMA system is the most usual type of Anti - collision Algorithms in RFID System. This paper puts forward programming and simulating by using MATLAB based on EPCs Binary Search algorithm .Finally the results are compared and analyzed at the end of the paper and the author gives some pieces of advice.

Abstract: The article draws lessons from radio frequency identification RFID identification results at home and abroad, put forward the general framework of RFID conference attendance system, to realize the higher requirements of the real-time conferencing electronic data storage, query, statistics and other functions, to realize the conference management be intelligent, barrier-free remote control.