Applied Mechanics and Materials Vols. 401-403

Abstract: In order to further optimize the methods of patrol and inspection in transmission line, Flight-Sliding type inspection robot is designed, which combines the advantages of Quadrotor and inspection robot. The robot has a flight and online inspection function. Due to overshoot phenomenon can not occur in the process of the robot flying to power lines and hanging, Fuzzy PID control algorithm is selected. The algorithm complies with the requirements of flight control. Matlab simulations indicate that Fuzzy PID control algorithm is effective in flight control of Flight-Sliding type inspection robot.

Abstract: In order to improve the inconsistency of network management and network technology development needs, this paper designed and implemented a visual monitoring of network devices. It describes the design ideas, the main functions and its implementation. According to the technical characteristics of network devices and geographic distribution, the article uses Google Maps API for Flash / Flex, PHP and Socket. It has online status detection, device information query, topology dynamic monitoring, electronic map refresh and other functions.

Abstract: An adaptive controller with adaptive rate is presented to synchronize two chaos systems and to apply to secure communication. Based on Lyapunov stability theory, a sufficient condition and adaptive control parameters are obtained. Finally, the simulation with synchronization and secure communication is given to show the effectiveness of the proposed method. Keywords: adaptive; synchronization; observer; controller.

Abstract: This paper takes the wheeled line-tracking robot as the investigative object and the realization of intelligent control as the target, bases on SCM STC12C5A60S2, make the design of line-tracking robots soft hardware, and the line-tracking algorithm emphasis, presents a new method in PID control, and combining straight-line acceleration and channel bend modification, The experimental result shows that this line-tracking robot meets the design requirements with rapid moving and stability.

Abstract: The technique process of boiler make-up water treatment is introduced briefly in the article. Combining with the practical production, a system based on KingSCADA and PLC is designed for the treatment of boiler make-up water. The traditional water treatment system is optimized. The modularization of the software design of the system disposition configuration, control points configuration, reports and trend curve and etc. were realized.

Abstract: In order to improve the performance of stepping motor system, the modern theory of fuzzy control and classical PID control theory are organically combined, the structure of fuzzy PID controller has built,which is suitable for the stepper motor control requirements, and corresponding control rules have designed that have realized the control of stepping motor. MATLAB software is applied for simulation. Comparing the fuzzy self-tuning PID controller with the conventional PID controller, the simulation results that fuzzy parameter self-tuning PID control system has less overshoot response, shorter reaction time. Fuzzy parameter self-tuning PID control has comprehensively improved the dynamic response performance of stepping motor control system, ensured the control accuracy.

Abstract: Focusing on the feature of embedded software in power industry and to ensure its high reliability, the authors of this article introduced a comprehensive and effective testing technique based on the theory and practice of embedded test, with two phases: static test and dynamic unit test. It focus on the coding rule checking, quality metrics, analysis, flow control and data flow analysis and coverage analysis techniques.

Abstract: This paper briefly introduced and discussed some of the mainstream embedded test tool, the purpose is to give the readers have a general understanding of current stage and development of embedded system in China. Meanwhile, this paper analyzed under the electricity industry (especially smart grid construction) application scenarios, three main modes of embedded software testing (development and testing, user testing, third-party testing) , their advantages and disadvantages and the scope of the necessary conditions and so on.

Abstract: The study was made on a MEMS-based thermal emissivity variable micro-thermal control device to meet the requirements of the thermal control system of the spacecraft. An emissivity adjustment model for louvers was established. Main parameters that influence the equivalent emissivity of the louver were also investigated. Characteristics such as the electrostatic torque driven by parallel electrodes were modeled and analyzed. As a result, curves of the relationship between angles driven by parallel electrodes and electrostatic torques were obtained. Based on theoretical analysis, the adjustment range of the thermal emissivity was obtained for torsional micro-thermal control devices. The results showed that the properties meet the requirements for the control of space thermal emissivity.

Abstract: Refrigerating evaporator superheat has the characteristics of the large time delay and superheat model is uneasy to determine. But the general smith control has bad robustness and require a high model accuracy. The paper introduces a self-adaptive smith control way, this method can dynamically amend the estimated output through historical estimated Result, which can improve the predicting accuracy. Applying this control way to the evaporator superheat system, the control quality is improved, system runs stably,anti-interference performance improved and also the systems robustness.