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Gong Q.H.,Luzhou Vocational and Technical College
Applied Mechanics and Materials | Year: 2014

The pneumatic servo system has characteristics of nonlinear, time -variant, large parameter variations and external disturbances, which is difficult to control. The conventional PID control is not suitable for the variable parameters of the controlled object, external disturbances. In this paper, the neural network controller combined with PID control is used to control the pneumatic servo system, and the structure diagram, algorithm and learning rule of the single neuron adaptive PID controller are put forward. The results show that, compared with the traditional PID control, the controller has significantly improved the control performance of system, Namely, the system has faster computational speed (real-time), stronger robustness and better adaptive ability. © (2014) Trans Tech Publications, Switzerland.


Three species of the genus Trichodina Ehrenberg, 1838 and one species of the genus Chilodonella Strand, 1926 were collected from gills of Carassius auratus. They are Trichodina luzhoues sp. n., Trichodina mutabilis Kazubski and Migala, 1968, Trichodina reticulata Hirschman and Partsch, 1955, and Chilodonella hexasticha Kiernik, 1909. T. luzhoues sp. n. is a medium-sized trichodinid, and its denticles are very distinctive: the blade is narrow rhombus shaped, the section connecting the blade and central part is long and very thin; the section connecting the central part and ray is short and very thick. Ch. hexasticha is a new record in China. © 2012 Springer-Verlag.


Cui W.,Luzhou Vocational and Technical College
MATEC Web of Conferences | Year: 2016

In this paper, aiming at the characteristics of Chinese text classification, using the ICTCLAS(Chinese lexical analysis system of Chinese academy of sciences) for document segmentation, and for data cleaning and filtering the Stop words, using the information gain and document frequency feature selection algorithm to document feature selection. Based on this, based on the Naive Bayesian algorithm implemented text classifier, and use Chinese corpus of Fudan University has carried on the experiment and analysis on the system. © Owned by the authors, published by EDP Sciences, 2016.


Gong Q.H.,Luzhou Vocational and Technical College
Advanced Materials Research | Year: 2014

The principle of double-input and single-output fuzzy controller has been analyzed in detail. Aimed at the frequency conversion system of the pump in wastewater treatment we has conducted the research of fuzzy control algorithm, In frequency control system we adopt double input and single output basic fuzzy controller. The simulation results show that using the fuzzy controller to control frequency converter to realize AC variable speed of motor can achieve value quickly, and control effete is smooth, the dynamic characteristics of system are also good, reaching the design requirements well, which has a very broad application prospects. © (2014) Trans Tech Publications, Switzerland.


Li T.G.,Luzhou Vocational and Technical College
Advanced Materials Research | Year: 2014

Using the chip MC9S12XS128, two-wheeled self-balancing robot control system is designed. Its posture information is detected by accelerometer MMA7260 and gyro NEC-03, multi inertial sensor data fusion is realized by Kalman filter, posture data optimal estimation is gotten, and the accuracy of posture sensing system is improved. Using integral separation PID control algorithm, controlling the left and right motors are accelerated or decelerated, self-balancing control of two-wheeled robot is achieved. The experimental results show that, using the hardware platform MC9S12XS128, Kalman filter algorithm has high efficiency and posture data fusion is accurate and reliable, requirements which are posture optimal estimation and inclination data real-time feedback are met, and the system is stable and can accurately and quickly realize self-balancing control of two-wheeled robot. © (2014) Trans Tech Publications, Switzerland.


Gong Q.H.,Luzhou Vocational and Technical College
Advanced Materials Research | Year: 2014

In view of biomass gasify process which has nonlinear, non-minimum- phase, big delay and strong load interference characteristics, a fuzzy neural network control algorithm for biomass gasifier is presented. Gasified process of biomass gasifier has been researched, and intelligent control of temperature and primary air flow for biomass gasifier has been designed. The control objects are gasifier temperature and flue gas oxygen content, the regulation objects are the material feed flow and primary air flow. Simulation results show that, this system has better control effect than the traditional fuzzy control system. © (2014) Trans Tech Publications, Switzerland.


Gong Q.H.,Luzhou Vocational and Technical College
Applied Mechanics and Materials | Year: 2014

In order to improve pass-rate of liquor filling products; avoid poor quality as a result of liquor leakage and volatility, the sealing device for liquor filling and sealing machine has been improved, a parameter-adaptative fuzzy PID controller and a temperature control device based on a single chip microprocessor have been designed. Practical applications have shown that the parameter-adaptive fuzzy PID control system has high control precision and good tracking performance, small overshoot, strong anti-voltage disturbance, stable and reliable heat seal connection quality, and can meet the requirement of production process. © (2014) Trans Tech Publications, Switzerland.


Wang H.,Luzhou Vocational and Technical College
Proceedings - 2016 8th International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2016 | Year: 2016

Infrastructure engineering project management system of the enterprise is analyzed. Combined with the existing increasingly mature computer technology, including database, software and hardware platform, related development tools and network architecture, according to the current demand, system structure of building engineering information management is analyzed and designed. The architecture of proposed system is developed based on B/S structure. Combining with the actual needs of each subsystem, the process of system is presented. Function modules of the system are analyzed, as well as detailed implementation of the interface. The testing results show that the system meets the requirements of building enterprise project management. © 2016 IEEE.


Cui W.,Luzhou Vocational and Technical College
Applied Mechanics and Materials | Year: 2014

All the work in vocational colleges will produce a great deal of experiential knowledge. The traditional form in which information is stored in paper documents and shared in offline exchange patterns has low efficiency with a small extended range. Based on analyzing the research status of experience accumulating and sharing platforms as well as merits and demerits of traditional experience accumulating and sharing means, this paper has studied the construction method of experience accumulating and sharing platform for vocational colleges, and presents a solution to the problems such as the construction of the platform logical structure, the storage and retrieval of experiential resources, and the uniform presentation of resource files. © (2014) Trans Tech Publications, Switzerland.


Zeng Q.,Luzhou Vocational and Technical College
Advanced Materials Research | Year: 2014

Numerical simulation is a new and effective method to study the engine performance. In this paper, combustion model of biodiesel engine is established, and the cylinder pressure, NOx and Soot emission are calculated. The research results indicate that the model established by AVL FIRE software can calculate the biodiesel engine performances accurately, which is an effective way to study engine performances conveniently. © (2014) Trans Tech Publications, Switzerland.

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