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Research on lactose concentration detection device based on the optical rotation method

Research on lactose concentration detection device based on ...

2015 Fifth International Conference on Instrumentation and measurement,Computer,communication and control (IMCCC2015)(第五届仪器测量、计算机通信与控制国际会议)

作者： Zhen Zhou Li Liang Kangkang Guo Zehong Lv College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781467377249

At present,the process of detecting the sample of the lactose detection method is very complicated due to the strict operation condition,long operation time and expensive *** the nature of lactose that can rotate the plane of polarization of plane-polarized,a lactose concentration detecting device is *** device consists of an experiment platform,a photoelectric receiving and converting module,a data processing module,and a LCD ***,polarizer,detector tube,analyzer and photocell are placed on the experiment *** test results show that the performance of the detection device is stable and the error is less than 10% through multiple measure on different solutions at different *** advantage of the device is mainly manifested in its low cost,compact structure,light weight,small volume,fast response speed,and the convenient operation.

关键词： lactose Optical rotation concentration detection

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Light Scattering Technique to Detect the Temperature of the Milk Proteins control Design

Light Scattering Technique to Detect the Temperature of the ...

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International Conference on Instrumentation, measurement, Computer, communication and control (IMCCC)

作者： Lifeng Liu Zhen Zhou Zehong Lv Dixing Li College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781479965762

The use of light scattering techniques can be achieved for the detection of the protein ontent of milk, but there are many factors that affect the test results in the detection process. One of the important factors effect of detection result is temperature. This article will explore the detection process temperature affect the test results and the fuzzy PID technology to achieve a milk protein detection process of constant temperature, in order to improve detection accuracy.

关键词： Proteins Dairy products Temperature control Light scattering Temperature Temperature measurement PD control

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Research on the test system for electrical parameters of relay based on STM32

Research on the test system for electrical parameters of rel...

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2015 Fifth International Conference on Instrumentation and measurement,Computer,communication and control (IMCCC2015)(第五届仪器测量、计算机通信与控制国际会议)

作者： Zhen Zhou Zehong Lv Kangkang Guo Li Liang College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781467377249

The current test system for electrical parameters of relay, mainly with the 51 series MCU as the central processing unit, peripheral components are various, running speed is limited, and judging the failure of relay only rely on testing the contact resistance exceeds the standard or not, testing parameter is single. Foreign technology on research and development of test system for relay's electrical parameters is mature, but the cost is higher. Thus, in this paper, we study a kind of test system for relay's electrical parameters with STM32 MCU as the central processing unit, which can realize to test the relay's electrical parameters such as coil resistance, contact resistance, suction voltage, release voltage, suction time, release time, arc time and so on. This paper mainly discusses the design principle and hardware structure, finally obtained test data by the experiment, the data show that the test system has the advantages of fast running, stable performance, simple design, and has a certain market value.

关键词： STM32 relay electrical parameter test system

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A dual-band low noise amplifier

A dual-band low noise amplifier

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2014 International Conference on communication technology and Application, CTA 2014

作者： Zhang, Z. Li, Z.H. Zhang, W.R. Zhao, F.Y. Chen, C.L. Liu, B.Y. School of Information and Communication Engineering Beijing Information Science and Technology University China College of Electronic Information and Control Engineering Beijing University of Technology China

ISBN: (纸本)9781845649302

A dual-band low noise amplifier (DBLNA), which can operate at 2.4 GHz and 5.8 GHz, is designed and realized. Infineon BFP740 SiGe HBTs are chose as active device, the cascode structure with high isolation and wider bandwidth is selected as gain circuit stage, whose bias current is selected to obtain minimum noise figure. In order to cope with the error of board technology and the PCB transmission loss, an additional stage is added into the cascode amplifier stage, both the peaking inductor and the RC circuit are utilized to compensate the decrease of high-frequency gain. A voltage divider circuit by resistor is employed to provide bias current, and the bias point is determined by scanning IB-NF. For the sake of miniaturization and adjustability, the π-type micro-strip line is used to achieve input/output matching. The combination of the electromagnetic simulation and the schematic diagram simulation, so-called co-simulation, is used to guarantee the simulation results are close to actual case. Finally the board-level layout is designed and the DBLNA PCB is fabricated and measured. © 2014 WIT Press.

关键词： Low noise amplifiers

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Wireless Ad hoc network security multi-path routing protocol survivability modeling research

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Sensors and Transducers 2013年第10期157卷 173-179页

作者： Chen, Hongsong Fu, Zhongchuan Shang, Xuewei Ye, Fei School of Computer and Communication Engineering University of Science and Technology Beijing Beijing 100083 China School of Computer Science and Technology Harbin Institute of Technology Harbin 150001 China Beijing Kedong Electric Power Control System Co. Ltd Beijing 100192 China

Network survivability is the key ability of ad hoc network under all kinds of attacks, which is a foundation to the design and evaluation of wireless ad hoc network routing protocol. The definitions of network survivability are analyzed and compared. We propose a novel survivability model based on Finite State Machine (FSM) and District Time Markov Chain (DTMC) model. DTMC steady-state probabilities are theoretically deduced and computed. Performance Evaluation Process Algebra (PEPA) is used to decribe the state transition model, PEPA Eclipse Plug-in software is used to compute the steady-state probabilities. We find that the steadystate probabilities computed by PEPA software match well with the formula derivation. Experiment results show that G steady-state probability decreases with the increasing transition probability of attack state. Finally, we validate the proposed model by PEPA simulations and numerical analysis. © 2013 IFSA.

关键词： Routing protocols

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Combined Classification of Hyperspectral and LiDAR Data based on Dual-Channel Cross-Transformer 5

Combined Classification of Hyperspectral and LiDAR Data base...

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5th International Conference on Video, Signal and Image Processing, VSIP 2023

作者： Zhou, Binbin Wang, Qingyan Zhang, Junping Wang, Yujing School Of: Measurement-Control And Communication Engineering Harbin University Of Science And Technology Harbin150080 China School Of: Electronics And Information Engineering Harbin Institute Of Technology Harbin150001 China

ISBN: (纸本)9798400709272

In the face of complex scenes, single-modal dominant classification tasks encounter limitations in performance due to insufficient information. On the other hand, joint classification of multimodal remote sensing data faces challenges such as data sample differences and lack of correlation in physical features between modalities, which can impact classification performance. To fully integrate the heterogeneous information of multimodal data and improve classification performance, we propose a dual-channel cross-transformer feature fusion extraction network. The framework leverages self-attention mechanisms to aggregate features within each modality, and the feature fusion module based on cross-modal attention fully considers the complementary information between modalities. Classification tasks are performed using the fused spatial-spectral features obtained from the joint representation of modalities. Extensive experiments conducted on the Houston and MUUFL datasets demonstrate the effectiveness of the proposed model compared to existing methods. © 2023 ACM.

关键词： Classification (of information)

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Research and design of the solar charging system based on FPGA

Research and design of the solar charging system based on FP...

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2013 International Conference on Mechanical and Electronics engineering, ICMEE 2013

作者： Cheng, Hong-Li Zhang, Geng-Chuan Zhang, Wei School of Communication and Information Engineering Xi'an University of Science and Technology Xi'an 710054 China School of Electrical and Control Engineering Xi'an University of Science and Technology Xi'an 710054 China

ISBN: (纸本)9783037858103

This article introduces an efficient solar charging system based on FPGA. The charging circuit composed of BUCK-BOOST switch converter, realizes the function of maximum power point tracking(MPPT) of solar cells by using high speed controller-FPGA and a new MPPT technology-WVSVH P&O method. This paper explains the design and simulates it. The simulation results show the topology is able to achieve the purpose of charging efficiently. © (2013) Trans Tech Publications, Switzerland.

关键词： Field programmable gate arrays (FPGA)

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Research on the Prediction Model of Coal and Gas Outburst Based on Principal Component Analysis and Radial Basis Function Neural Network

Research on the Prediction Model of Coal and Gas Outburst Ba...

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International Conference on Instrumentation, measurement, Computer, communication and control (IMCCC)

作者： Yongchao Guan Shuai Wang Zhen Zhou College of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin China

ISBN: (纸本)9781479965762

To improve the accuracy and efficiency of coal and gas outburst prediction, the principal component analysis was combined with radial basis function neural network for the prediction of the situation of coal and gas outburst in this paper. The impact factors of coal and gas outburst in a coal mine are the object of the study. Principal component analysis method was used to extract the principal component factors, and then the large contribution of three principal components was selected to replace the original nine factors, with the main ingredient as an input parameter radial basis function neural network. Coal and gas outburst is divided into four levels to build predictive models of coal and gas outburst. 16 outstanding groups of typical samples of the neural network prediction model were selected for training, and three groups of testing samples were tested with trained neural network prediction model, with results showing that projections are consistent with the actual situation.

关键词： Coal Predictive models Principal component analysis Radial basis function networks Mathematical model Data models

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NURBS Modeling and Curve Interpolation Optimization of 3D Graphics

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Computers, Materials & Continua 2021年第2期66卷 1799-1811页

作者： Hao Zhu Mulan Wang Kun Liu Weiye Xu School of Information and Communication Engineering Nanjing Institute of TechnologyNanjing211167China Jiangsu Key Laboratory of Advanced Numerical Control Technology Nanjing Institute of TechnologyNanjing211167China Department of informatics University of LeicesterLeicesterLE17RHUK

In order to solve the problem of complicated Non-Uniform Rational B-Splines(NURBS)modeling and improve the real-time performance of the high-order derivative of the curve interpolation process,the method of NURBS modeling based on the slicing and layering of triangular mesh is *** research and design of NURBS curve interpolation are carried out from the two aspects of software algorithm and hardware *** on the analysis of the characteristics of traditional computing methods with Taylor series expansion,the Adams formula and the Runge-Kutta formula are used in the NURBS curve interpolation process,and the process is then optimized according to the characteristics of NURBS *** can ensure accuracy,and avoid the calculation of higher-order ***,the hardware modules for the Adams and Runge-Kutta formulas are designed by using the parallel hardware construction technology of Field Programmable Gate Array(FPGA)*** parallel computing process using FPGA is compared with the traditional serial computing process using *** and experimental results show that this scheme can improve the computational speed of the system and that the algorithm is feasible.

关键词： NURBS modeling interpolation Adams Runge-Kutta FPGA

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A novel image reconstruction algorithm based oncompressed sensing for electrical capacitance 5

A novel image reconstruction algorithm based oncompressed se...

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5th International Symposium on Computational Intelligence and Industrial Applications, ISCIIA 2012

作者： Deyun, Chen Zhiqiang, Li Zhen, Zhang Liyuan, Xu Wenxin, Yu Xiaoyang, Yu School of Computer Science and Technology Harbin University of Science and Technology Harbin China School of Measurement-Control and Communication Engineering Harbin University of Science and Technology Harbin China

According to the image reconstruction accuracy influenced by the "soft field" nature and the limited projection data in electrical capacitance tomography, based on the working principle of the electrical capacitance tomography system, a Novel image reconstruction algorithm based on compressed sensing is proposed in the paper. The method based on ART (algebra reconstruction technique) organically combines the gradient sparse of image and ART, and reduces the norm of image gradient with full-variational method, and improves the accuracy and speed of image reconstruction. Experimental results and simulation data indicate that the imaging accuracy is markedly improved, and the image is closed to the *** new algorithm presents a feasible and effective way to research on image reconstruction algorithm for Electrical Capacitance Tomography System.

关键词： Image reconstruction

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