Applied Mechanics and Materials Vol. 418

Abstract: The paper programs motion paths using laser detection system for the mobile robot. The laser detection system contains a laser range finder and a laser positioning system. The mobile robot is constructed using aluminum frame, and has the shape of cylinder and its diameter, height and weight is 40 cm, 80cm and 40kg respectively. In the driver system and avoidance obstacle driver system, we use NI motion control card and MAXON drivers to control two DC servomotors, and detect obstacle using a laser range finder and sixteen reflective IR sensors. The mobile robot locates the position of the detected obstacles using a laser positioning system. The mobile robot can program the motion path using A* searching algorithm and avoids the detected obstacles to follow the programmed trajectory. We develop the user interface to display the positions of the detected obstacles. Finally, we implement the experimental results using the proposed method. The mobile robot moves to the target position from the start position autonomously. The mobile robot detects environment status using the laser detection system and avoids the detected obstacles to finish the assigned tasks.

Abstract: This study is on the method of emotion extraction from Korean SMS text elements. There are errors and contradictions in the application of the results translated from foreign language, due to the difference of word origin to express the emotion. The extraction method was developed based on the characteristic of the Korean language, to minimize errors in emotion extraction. One of important characteristics of the Korean language is that emotion expressing words are mostly based on the changes in the body. The classification system developed is expected to be effective for robotic service.

Abstract: Mobile audit mission is always troubling accounting personnel outdoor operations. Indeed, they need intelligent system as operations supports. Over thousands of companies have to audit and over thousands of invoices have to check. It exhausts accounting personnel labor time. This study constructed a cloud computing server and use intelligent cell phone as controller approach to replace human robot auditing process, and apply robot visual recognization for speeding up audit process. The research results showed that it can work when the cloud servers response for calculations and used intelligent cell phone as controller. It both fits government and industry needs and application requirements. Future study suggests initializing i-phone video recording for invoices automatic visual recognization.

Abstract: In last decade, energy efficiency of hydraulic actuators systems has been especially important in industrial machinery applications [1-. And an advanced electronics world most of the applications are developed by microcontroller based embedded system. Energy processor based variable oil flow of hydraulic controller was presented to improve the efficiency of the motor by maintaining with the load sensing. These PIC processor combined with fuzzy controller were help to design efficient optimal power hydraulic machine controller. A functional design of processor and in this system was completed by using load sensing signal to control oil flow. The advantage of the proposed system was optimized operational performance and low power utility. Without having the architectural concept of any motor we can control it by using this method. This is a low cost low power controller and easy to use. The experiment results verified its validity.

Abstract: This paper describes a method that reform the backward control system of annealing tin machine with the PLC control technology, and designs of hardware and software of the machine so that the machine have a good man-machine automatic control system. The paper focuses on the development of automatic program based on PLC, home return program, alarm program and protection program. The result shows that this control system is reliable, stable and high precision when it is used to the machine, and improving the competitiveness of the machine in the industry greatly.

Abstract: With the lack of the water source, the accurate metering is more and more important. This paper designs and realizes a kind of water meter auto calibration system, which can calibrate the water meter within a short time by image recognition technology . Shown by practical application, the system not only improves the testing efficiency, but also save the man-hour.

Abstract: Tower crane is playing a more and more important role in the construction of high-rise buildings. However, crane operators do not acquire adequate conditioning information from tower crane itself to control the tower crane. In order to work safer and more efficient, this paper presents a condition monitoring system (CMS) that provides a solution to receive sufficient information. The CMS can monitor the detailed and comprehensive information, such as lifting moment, swing amplitude and lifting weight, which is related to the safety of tower crane in real time with sense, signal processing and wireless technologies. This CMS aims at degrading the tower crane accidents and protecting the project manager, construction equipment and operators from dangerous situation.

Abstract: In this paper, a four-dimensional (4D) autonomous hyperchaotic system is dealt with. The stability criteria of equilibria of the controlled hyperchaotic chaotic system are established. Using the dislocated feedback control, enhancing feedback control, and nonlinear function feedback control methods, the chaos of the 4D hyperchaotic system can be suppressed to unstable equilibrium. Some numerical simulations revealing the effectiveness of our control strategies are given..

Abstract: The double-axial pump-controlled folding machine is a coupled system and has significant structural interaction. This paper proposes a coupled adaptive self-organizing sliding-mode fuzzy controller (CASOSMFC) to improve its level control performance. CASOSMFC is associated with two basic single-axial sliding-mode fuzzy controllers, self-learning fuzzy rule mechanisms, adaptive laws, coupled controllers and regulators. Different loadings are used to simulate different working pieces and variety coupled intensity folding processes. Experimental results indicate that CASOSMFC applied in the folding machine has excellent level control performance and has strong robustness to different coupled intensity.

Abstract: The double-axial valve-controlled folding machine is a coupled system. This paper proposes a coupled adaptive self-organizing sliding-mode fuzzy controller (CASOSMFC) to improve its level control performance. CASOSMFC has two basic single-axial sliding-mode fuzzy controllers, self-learning fuzzy rule mechanisms, adaptive laws, coupled controllers and regulators. Then, base on variety parameters to study their parametric effects individually. Experimental results indicate that the learning rate can reduce error of steady state to improve the tracking performance. Adaptive law improves tracking error. Coupled controllers and regulators improve synchronous error.