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At present, there is a strong trend of intelligence and miniaturisation of equipments accord with the rise of the Intelligent Equipment, the Mobile Internet and the Internet of Things. As the comprehensive research subject of the Artificial Intelligence and Pattern Recognition, Statistics Theory, Signal Processing subjects, Speech Recognition has got enough attention and development for a long time,...
A finite element model of an eddy current sensor array is built up by electromagnetic-circuit couple method, and the influences of lift off on sensor's output characteristics are analyzed by this model. There would be a change on amplitude and phase when lift off distance is altered, and the amplitude and phase of sensor coil are increasing gradually as lift off distance increased. When lift off distance...
The implementation of credit management model under the current network environment has a big impact on the teaching communication between teachers and students. In order to better solve the problems of teaching communication under the credit environment, the paper presents a Teachers-students teaching communication system, which analyzes the function of Teachers-students teaching communication system...
Molar reaction Gibbs function change, molar reaction enthalpy change, equilibrium constant and the equilibrium partial pressure of SO2 and NO for the reaction of simultaneous removal of SO2 and NO by using NaClO/ammonia solution were calculated based on the principle of chemical thermodynamics. As can be seen from the results, simultaneous removal of SO2 and NO by using NaClO/ammonia solution is available.
The Hardware/Software co-design method for fast image processing tasks is presented in this paper. The platform is a FPGA board, which is embedded with a soft processor as the main processor in the system, and a co-processor is designed using FSL (Fast Simple Link) to connect the main processor. The software application on the main processor can deal with general function, but can not afford the time-critical...
IC wafer image is composed of basic shape, mainly including lines, rectangles, rounds and ellipses. Firstly, this paper analyzes the shape of IC circuit image by the geometry of basic shape. When the images are moved and rotated, the moment has the same feature. Therefore, we can calculate the moment, the barycentric coordinate points and barycentric moment which are invariant in the same image. Secondly,...
An instance of measuring node of service life measuring and control system of household appliances using FPGA and nRF2401 is present. FPGA is the core of the system which is embedded with E-MAC IP core to realize the remote monitor system replying on the TCP/IP communication protocol, and nRF2401 is wireless periphery that realizes the wireless data acquisition. How to design and implement the hardware...
The paper studies the position calibration of matrix transformation in the plane coordinate system, and it proposes transition matrix which uses different kinds of plane coordinate systems according to the matrix transformation to establish the method of non-redundant equation drawing from the position calibration model in different plane coordinate systems. The paper also expounds the method of solving...
The performance of a hardware/software architecture designed to perform a wide range of fast image processing tasks is evaluated and presented in this paper. The system architecture is based on field programmable gate array (FPGA) featuring soft-core processor MicroBlaze core processor and an external median filter co-processor using bitonic sort. The FPGA is based on a Xilinx Virtex-II Pro chip and...
The paper studies the intelligent detection system based on TCP/IP protocol and realizes real-time detection based on B/S mode. This article focuses on the real-time problem of the communication system, an also propose an improved algorithm of congestion avoidance based on receiver-driven(CARD). Being different from the RTT algorithm and some traditional algorith, CARD uses one-way delay detecting...
A fuzzy control system is analyzed and designed basing on a new hardware platform mixed-signal FPGA. Besides fuzzy control module, FPGA is also embedded with 8051, PWM, ADC. After analyzing the principle of fuzzy control module, it's divided into several modules according to the functional needs on the basis of this division the logic structure of all modules can be obtained. Then based on top-down...
A rapid ultra-performance liquid chromatography (UPLC) method was developed for feasible separation and quantification of 26 amino acids in royal jelly. The analysis was performed on Acquity UPLC system with Acquity UPLC AccQ·Tag Ultra Column within 8min. The correlation coefficient values (r 2 >0.9978) indicated good correlations between the investigated compounds’ concentrations and their...
There are many vital defects in the process of fabrication of IC wafer. The redundancy material defect is an important factor of reducing the yield of IC, it mainly causes circuits to be connection failure, so it is important to recognize the redundancy material defect and ascertain the circuit's failure style. In this paper, a simple and doable method of vision inspection for the redundancy material...
In this paper, structure and working principles of eddy current retarder (ECR) are discussed, as well as performance requirements of real-time virtual testing and simulation. On the basis of hardware testing platform, virtual models of vehicle and retarder are embedded into application program. In the testing system, Vega API function library is used for second development to control the 3D models,...
This paper brings forward a hardware design method of reconfigurable CNC system which makes use of the abundant logic resources of FPGA and programmable characteristics. It introduces the scheme of a CNC system which has regarded FPGA as the control centre. It mainly represents the thought of reconfigurable design, design of programmable pulse signal generator, the speed control of stepping motor,...
On the basis of establishing a mathematical model, the real-time test of elastic ratio of timber sticks is transformed to the test of deflection under certain loads and ARM embedded system is used to operate a pneumatic device to test the elastic ratio of stick, and control air cylinder to classify sticks according to rigidity automatically and then put them in respective place. The system consists...
High SNR (signal to noise ratio) image is deeply needed in the precise analysis of IC wafer micro-image; current denoising algorithms cant reach the analytic precision in some level. In tins paper, one image denoising algorithms is putted forward based on adaptive lifting scheme, the construction of Haar wavelet and CDF (2,2) is given, the signal is decomposed by wavelet base Haar or wavelet base...
In this paper, based on the electrothermal upsetting processing method, the process of valve upsetting is divided into two steps: initial upsetting and formal upsetting. Four parameters, including 1.hearting current; 2.press; 3.velocity; 4.material, which influence the manufacture process in evidence, is mainly discussed. Analyzing defect and deficiency of tradition processing, the article puts forward...
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