Advanced Materials Research Vols. 443-444

Abstract: This phototherapy takes full advantage of near infrared ray with high penetrability treating various pains and UVC curing gynaopathy, yet using the same control system. Introducing emphatically AT89S51 as the core to control circuit, utilizing PWM (Pulse-Width Modulation) produced by singlechip to manage the transmit power of light source and implementing the control system into hospital’s RS-485 monitoring network. Because of the machine serving several purposes, it makes the treatment efficiency higher and the cost lower.

Abstract: This paper describes a family dishwasher which has been applied for China Patents, it mainly introduces the wave-wheel dishwasher control system that adopts AT89S52 to be the control core. The article gives the hardware control circuit, provides the system’s main program and the keyboard interrupt program block diagram. Through practice, the system is operating reliably, its performance is stable, and can effectively complete the tasks of washing, disinfection and drying by full-automatic.

Abstract: In this paper introduce the technology of automatic sprayer control system in coal mine. In order to achieve sprinkling automatic, this sprayer device uses human body sensor to control the electromagnetic valve on and off. This system is not only able to conquer dust, purify air, but also able to absorb harmful gas, reduce gas density, which is important device to improve harmful dust environment and against the dust endanger.

Abstract: We describe a technique for the registration of three dimensional (3D) knee bone surface points from MR image data sets. This technique is grounded on a mathematical theory – Lipschitz optimization. Based on this theory, we propose a global search algorithm that simultaneously determines the transformation and point correspondences. Compared with the other three registration approaches (ICP, EM-ICP, and genetic algorithms), the new proposed method achieved the highest registration accuracy on animal data.

Abstract: The wavelet transform of pulse signal and noise have different properties, thus an improved wavelet transform modulus maximum algorithm was introduced to remove the noise in UWB system. Improvements include: a) a new adaptive threshold algorithm is used to process the wavelet transform modulus maxima on the largest scale level; b) getting modulus maxima on the first level through nonlinear least-square method. At last, Mallat alterative projection algorithm was adopted to reconstruct the signal. Simulation results show that the denoising effect of the novel method is far better than the traditional one, and it can locate the position of the narrowband pulse more accurately.

Abstract: In this paper, the speed control system controlled by motor speed was designed to control forward speed of underwater robot precisely. Based on the theory of double closed-loop speed control, motor control system was modeled firstly, and then regulator parameters were designed based on the engineering approaches. According to the characteristics of forward movement, the mechanical construction of sub-mini underwater robots and the comparison of various system designs, the double closed-loop regulator parameters of sub-mini underwater robots were obtained. And the propulsion system of sub-mini underwater robots was equipped with speed and current double closed-loop control. All the experimental results showed that within a certain range of motor speed, no static error could be guaranteed and the variable speed of underwater vehicle could be achieved.

Abstract: In order to improve the design efficiency of the crane and its parts to meet the fierce market competition, we developed rapid design system for crane drum. According to GMD theory, this paper takes crane drum for study, and divides it into several modules to form series and modular of crane drum. Summarized the design theory and knowledge of the crane drum and determined the parameters of functional modules. We shift modules from static modules to dynamic modules. By making a second development of Solid Edge with Visual Basic.NET, we developed agile design system for crane drum. After numerous tests in the actual design process, the system can greatly improved the quality and efficiency of design.

Abstract: In this paper, a wavelength adaptive assignment scheme called CExF (collision-evaluated adaptive fit) has been proposed for Optical Transport Network in Intelligent Highway to solve the date intensive scheduling. CExF assign a limited and more accurate weight, where the weight denotes the concurrent reservation probability, and the destination can select a wavelength with less collision probability by a new adaptive wavelength assignment according to the weight. Simulations show that CExF performs better in backward blocking, and even in forward blocking under medium traffic loads.

Abstract: This paper introduces an online system for detecting the strength of Laminated Veneer Lumber with vertical vibration methods. This system uses an acquisition card which type is PCI-1710HG developed by Advantech to collect data. Also it processes data with industrial computer. By computing the vibration signal’s logarithmic attenuation rate and dynamic elastic modulus the system can achieve the online nondestructive strength detection of LVL. This paper mainly discusses the system’s detection principle and detection methods, also it gives the hardware structure and software design. The system has been tested and verified by the experiment.

Abstract: An Omni-directional mobile manipulator with capability of zero-radius rotation is developed. Mechanism structure of the mobile platform and the manipulator are introduced, and the wheel model of the robot is designed with differential compensation structure. Multi-sensor system comprising ultrasonic sensors, infrared sensors and force/torque sensor are used for achieving precise control for the robot. Meanwhile, motion control of the mobile platform is analyzed, and servo control based on hierarchical structure of the manipulator is proposed. Finally, experiments of the robot are executed, and the results show the error of the platform for forward 4m is 8mm approximately after corrected by ultrasonic sensors, average error of zero-radius rotation is 3.7658mm, average error of re-orientation motion is 0.3mm, which verify the proposed omni-directional mobile manipulator designed reasonable, and can achieve precise operation effectively.