Applied Mechanics and Materials Vols. 644-650

Abstract: Greenhouse temperature control is a key factor which affects crop growth, and the traditional way of temperature regulation already cannot satisfy the requirements of modern greenhouse: high precision, rapid acquisition and response. The 32-bit EasyARM1138 single chip microcomputer is taken as the main control chip to implement multiple canopy temperature acquisition and control. AT89C52 single chip microcomputer is applied as assisted control chip to implement single greenhouse temperature control. DS18B20 digital temperature sensor is used to collect temperature information in the greenhouse. Through buttons, LCD monitor, GPRS SMS alarm module, and light alarm system with LED and buzzer sound to realize human-computer interaction. Through analyzing of the present condition of greenhouse environment, greenhouse temperature parameters are adjusted to achieve the requirements of crops growth and cultivation development to provide the most suitable temperature environment for crop growth, and increase crop yield and quality.

Abstract: In the research of robot path planning anti-collision method, with the traditional algorithm to plan robot path, the planning processis single, cumbersome and inefficient. To this end, a mobile robot path planning method based on potential field genetic fusion algorithm is proposed to establish the relationship model of different force in artificial potential field, and calculate attractive and repulsive forces applied on robotics in the artificial potential field, according to the attractive and repulsive forces to complete the anti-collision handling in route planning process. Experimental results show that the improved algorithm for anti-collision process in robot path planning, can effectively improve the computational efficiency for the anti-collision, expand its application field and enhance the technicality of anti-collision.

Abstract: With the progress of photovoltaic technology and sensor, this paper propose a new automatic feedback control system which based on the color sensor TCS230 and LED flexible lighting equipment to detect and treat infantile jaundice. By testing the severity of the yellowing baby skin, the system makes any response, such as the lights’ intensity and working time. And the final aim is to realize the detection and treatment synchronously for infantile jaundice, promoting the development of intelligent medical treatment.

Abstract: Self-balancing robot can stand on with two wheels. As the robot will vibrated during the angle adjusted dynamically,how to solve the angle sample and process noise is critical to system stability.This paper presents the hardware architecture of balance robot controller, discussed the data fusion and filter plus PID algorithm and its parameter selection,illustrate infrared communication and its protocol.

Abstract: mechanical arm is an essential replaced tool in the operations under heavy, dangerous and harsh environment (such as nuclear radiation, toxic and hazardous, etc.), but also a key technical equipment in the development of the country. Mechanical arm motion system is a very complex time-varying, strong coupling, highly nonlinear system. This paper presents a model of the robot visual tracking. Through the computer vision track the mechanical arm motion process to make the mechanical arm movement to become more intelligent, more environmentally friendly. Experiments show that the method can complete the mechanical arm intelligent trajectory tracking, and the tracking effect is better. 1 Introduction

Abstract: Heat pipe has excellent conductivity of heat and diversity of structure, so it can be used in machining which can decrease or avoid using the cutting fluid. In this paper, the abrasive tool with rotating heat pipe was designed. To validate that the abrasive tool with heat pipe can safely and steadily grind materials, the structure of abrasive tool was finite element analyzed which included static analysis. Furthermore, the heat transfer performance of heat pipe was tested. The results indicated that heat pipe has certain cooling impacts relative to no heat pipe in machining.

Abstract: In this paper, intelligent fuzzy control theory is introduced in the model of neural network algorithm, and the neural network system is improved by the PID controller, which has realized the feedback and adjustment function of neural network system, and has made the reaction of the system be more accurate and stable. In order to verify the validity and reliability of the designed intelligent control PID algorithm based on the fuzzy neural network in this paper, the algorithm is carried on the programming by using Matlab programming software, and the control process of PID is calculated by NNbox simulation toolbox, at last, it has obtained the curve of PID control response changing over time. From the response curve, it can be seen that after the PID proportional coefficient is regulated by using fuzzy neural network intelligent control algorithm, it can quickly and steadily obtain the control curve, which has realized better intelligent control effect, and has provided technical reference for the research of intelligent PID controller.

Abstract: The main purpose of low-carbon is to effectively alleviate the contradiction and structured development between resources and energy, human and social environment in the developing process of human. This article focuses on low-carbon protection of current tourist attractions and analyzes the structure of the low-carbon resource carrying system of tourist attractions. Based on PID control thought, this paper establishes carrying capacity analysis model and does the K means value clustering algorithm optimization of tourist attraction’s carbon cluster simulation system using computer simulation technology. Through comparative analysis, this paper proposes low-carbon protection simulation warning method of the scenic spots. This method can predict low-carbon carrying capacity of resources and make warning and the effect is significant.

Abstract: Due to the nonholonomic and underactutated properties of spherical robot, to realize its steady motion control is usually difficult. This paper presents a linear motion control method for an underactuated spherical robot. The linear motion dynamic model of the spherical robot is deduced with Euler-Lagrange method, which is a second order, nonlinear differential system with two coupled variables. Without any linearization a single-input multiple-output PID controller to realize the position control and pendulum angle control simultaneously is designed. Simulation results about the position stabilization and path tracking control are provided separately to show the control effects of the proposed controller.

Abstract: Wireless sensor network (WSN) is one kind of network which is composed by plenty of sensors with self-organization ability.WSN has the network with self-organization ability and the node is nimble distribution, it is widespread application in all kinds of fields. The article introduced based on the WSN design distributional sewage ultraviolet ray disinfection control system design, this system take PC machine as the core node, through the CC1100 wireless transceiver chip, with various ultraviolet rays generator node composition wireless sensor network, gathers various ultraviolet rays generator the condition and carries on the control to it.