Applied Mechanics and Materials Vols. 602-605

Abstract: This paper investigated the radiate source target localization techniques using airborne ESM sensor. Two algorithms are represented for different application environments. Pseudo linear estimation algorithm is used for estimating static target states with bearings-only measurements. The measurement data are bearings which are affected by random Gaussian observation noises. Iterated least squares estimation algorithm used iterative techniques to enhance the estimation accuracy. It is a kind of estimation algorithm based on the least squares estimation. Finally two scenarios are represented in Matlab simulation environments to validate the effectiveness of the algorithms.

Abstract: this device designed a wireless power supply based on IAP15F2K61S2 single-chip microcomputer control device, the device using the theory of electromagnetic resonance to simulate future wireless charging way; Is application of a wireless power supply technology in an attempt to relieve the energy crisis. System to IAP15F2K61S2 microcontroller as the control core, high power wireless transmission is realized by using xkt409 electricity. Charging status can be displayed on the LCD screen, wireless charging model to simulate the future car.

Abstract: Hydrostatic transmission with secondary regulation can regenerate inertial and gravitational energy of load. Based on deeply analyzing the working principles and energy-saving theory of the secondary regulating transmission system under variable pressure rail, regenerating the transmission system’s inertial energy by controlling rotation speed was put forward. Considering large changes of the parameters of the transmission system and its non-linearity, a fuzzy-neural network control was adopted, and the mathematical model of the system was established, then the simulations of the performance of the transmission system has been conducted. The conclusion was made that the inertial energy can be reclaimed and reused,and the self-adaptive ability and controlling performance of the secondary hydraulic transmission system is improved.

Abstract: Zheng HaiyanWeifang University of Science and Technology, Shouguang, 262700, Chinaemail: 55311612@qq.comKeywords: Street lamp,intelligent control,ultrasonic testing,infrared communicationAbstract. To satisfy the street lamp-control requirement of medium-and-small-sized towns and remote areas, ultrasonic sensor controlled by MCU realizes the monitoring of pedestrians and vehicles on road.It makes use of infrared ray to communicate between two street lamps and 4 lamps are kept on lighting,that not only ensures the safety of pedestrians or vehicles,but also saves energy.

Abstract: The purpose of this research is to get the static mechanical distribution of the hybrid robot and provide the basis for its structural optimization. In this paper, the parallel manipulator which is suffered the maximum force of the robot is studied according to the statics analysis theory of space mechanism. The position distribution of extreme stress and extreme strain on the key components which is suffered the maximum driving force is obtained by the simulation of finite element analysis, then the strength of the existing structure is checked, laying the foundation for structural optimization.

Abstract: A new control method based on speed sensorless active disturbance rejection control (SS-ADRC) is proposed for overcoming the shortage of traditional PID control method in the application of the multi-motor synchronization system. By using the extended state observer (ESO), the internal and external disturbances in the system are compensated. According to the data driving principle, the formula of speed identification is inferred. Disturbances can be estimated online through ESO, and then speed value can also be identified by ESO. The simulation results show: the control system have strong decoupling ability, accurate speed identification ability, and good dynamic performance.

Abstract: A kind of under-actuated self-adaptive mechanical hand was developed in this paper. This mechanical hand consists of three 3-dof under-actuated fingers, and four motors are adopted to drive nine joints. The hand has self-adaptation to targets in different shapes and sizes and it can perform actions, such as folding, unfolding and grasping. In addition, a quasi-statics model of the 3-dof under-actuated finger was established in this paper. The relationship equation between the grasping forces and the driving and damping torques was obtained, and the influence of target size and driving torques on the grasping forces was also discussed. The results of the simulation analysis were shown to verify the correctness of the quasi-statics model.

Abstract: According to the Eleventh China Intelligent Robot Contest of fire-fighting rules, modified the AS-MF09 fire-fighting robot and had made an overall debug. From the problems arising in the debugging process for the hardware platform based on AS-MF09, this paper made a targeted analysis in the practice, the key technologies such as the strategies of finding the fire, the choice of fire-fighting mode and the efficiency to ensure fire-fighting had been optimized. As the result, the AS-MF09 fire-fighting robot found the fire quickly at the lower scores fire-fighting mode and extinguished the fire with the success rate of one hundred percent. The result shows that the optimization of the AS-MF09 fire-fighting robot can achieve rapid and efficient fire-fighting effects.

Abstract: Robotic endoscope is one of the development directions of the noninvasive medical instrument. According to the feature and requirements of an expanding-extending robotic endoscope, a wireless control system was designed which included the following four parts: human-machine interaction PC, external communication box, robotic internal control system, and portable video receiver. Combining with the characteristics of the mechanism of the robot, a double feedbacks control was adopted to control the three coreless DC motors of the robot. A communication chain from upper-computer to robot was designed to control the robot remotely. At last, experimental tests in simulative pipeline and in vitro intestinal tract were carried out, and the results showed that the control system could control the robot effectively.

Abstract: The article designs a discrete-time sliding mode controller based on reaching law according to the follow-up system’s largely changed loads and strict control criteria for the position. It analyzes the different results by comparison of PID and sliding form of variable structures. Various results from simulation test shows that the control by sliding form of variable structures has better ability to guard load disturbance and parameter robustness.