Applied Mechanics and Materials Vol. 443

Abstract: Safety and production management is the eternal theme in the coal mine industry. Featured in the digital technology and information security technology, the third generation of coal mine safety monitoring system has gotten popularization and application in production, it could help to improve coal mining enterprises' ability of disaster-forecasting and to ensure to providing the technical support of production safety and risks elimination at the maximum.

Abstract: Multi-sensor Information Fusion can get more accurate information required by the system through fusing redundant, complementary, or more real-time information provided by multiple sensors. This paper, with the emphasis on the MIF technology, combining its application in mobile robots, is discussed from two aspects, namely theory and simulation experiments. First of all, this paper expounds the basic principle of MIF technology, systematic structure and gradation of information fusion and information fusion methods; Secondly, based on the theory of neural network integration, it discusses the application of MIF technology in the field of robots , providing an effective method for navigation and obstacle avoidance of mobile robots.

Abstract: In the Xiamen-Shenzhen Railway 32 m-span prestressed concrete box girder construction process, concrete box girder cracks always confused engineering and technical personnel, is a common and more difficult to solve quality problems, for box girder concrete surface cracks issues were discussed, and put forward a repair program to be applied in construction practice.

Abstract: This article researches mostly on how to detect the brake of elevator by using computer technique. It includes the hardware design and the theory of software on detecting. The hardware design is focus on its framework. The software-part analysize the idea and compute the parameter of the brake of elevator.

Abstract: The maximum power point tracking (MPPT) photovoltaic (PV) system can through the control photovoltaic device to realize voltage or current. However, the existing technical literature, which is not about these two methods how to choose reach a consensus. This paper through the use of current and voltage two different MPPT control strategies: in the perturbation and observation (disturbance observation method) and incremental conductance technology, to this problem made a comparative analysis.

Abstract: This paper elaborates the control of environmental factors in the modern industry and agriculture, and according to the problem that the temperature and the humidity is hard to control automatically, this paper puts forward the design of the greenhouse automatic control system based on MSP430 single chip microcomputer. This design mainly introduces the overall design scheme of the automatic control system, and the use of the properties of various hardware based on MPS430, which mainly include temperature transmission sensor DS18B20 and the humidity transmission sensor CHR01. And then use the environmental control factor algorithm and numerical conversion fuzzy algorithm, so as to realize the temperature and humidity control system.

Abstract: This article uses the mathematics method to study in view of boiler zero pollution discharge automatic dosing control and other aspects during the dosing control system model parameter is a variable instead of a constant. If the solution density changes, the object characteristic also along with the change, When the system load will change, can cause for the discharge of water changes, examines the PH value also can change along with it, will cause the controlled member model also correspondingly to change. Because the steam system heat supply pipeline has grown, a successful Canadian medicine circulation needs several minute perhaps several dozens minutes, overall system existence serious lag flaw. In view of the above, we used DDCSRD 3211B dosing system control system to eliminate hysteresis to ensure proper, efficient, energy-saving operation of steam boilers. Zero-effluent dosing system from steam to prevent pollution at the source, the boiler system to environmental decline in the discharge of sewage to zero or close to zero.[

Abstract: By studying the developmental actuality of reactive power compensation system in electric power system, with research on the theory and mode of reactive power compensation, this paper proposes a kind of static var compensation controller, which is based on high-performance, low-power microcontroller ADUC836It adopts nine-zone graph theory as the control tactics of voltage and reactive power. This new designed compensation controller can be connected with GPRS module by RS232 /485, thus the purpose of the real-time data transmission and exchange with the main control center is achieved. The whole system obtains the advantages of simple hardware structure, low price, easy software programming and excellent anti-interference ability.

Abstract: The logistics of railway electrification engineering, because of its unique industrial characteristics and intrinsic characteristics, can't be directly applied to the existing departments, industries, and the management information systems of other countries at present. In this paper, the logistics system of railway electrification engineering is analyzed based on object oriented analysis and in combination with the supply chain management information system and the author thinks that the key to analyzing the logistics information management system design of railway electrification engineering lies in the expression to the railway electrification engineering transportation supply chain management logic structure, and finally a computer aided decision system (CPFR model) based on the railway electrification engineering transportation supply chain distribution is established using data mining technology and object-oriented data model.

Abstract: The cascade development of river basin has important implication on the society, economy and ecological environment. To carry out optimal control and operation of hydro power stations can obtain a more significant overall efficiency, and provide basic support and guarantee to energy conservation and construction of ecological civilization. Taking into account the complexity and multi-objective property of operation of hydro power stations, as well as increasingly severe eco-environmental problems, this paper presents an optimal operation model of hydro power stations considering ecological environment water demand, and proposes an improved multi-objective immune genetic algorithm (MOIGA) to solve the model for better control of hydro power stations. This model is applied to the Xinan-Fuchun hydro power stations, and result shows that MOIGA is feasible for the control and optimal operation of hydro power stations.