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Compared with traditional guard management, this system uses radio frequency identification technology (RFID) to achieve intelligent access management. When need identification, RFID reader issues a fixed frequency radio. Then label card is stimulated, and returns ID number. By ID number and database information, we have developed a lot of access control management functions, such as staff automatic...
The traditional lighting system in the workplace only sets the lighting according to different scenes, can not intelligent adjust lighting as required. This program using data mining techniques can adjust the light intensity according to the data of weather forecasting, geographic location, historical data, and default value at this time in such scene. Meanwhile, BP neural network is applied to complete...
Through the profound research of the individual advantage and limit between the MPLS VPN and the IPSec techniques, a kind of safety campus all-in-one-card network solution, which is based on IPSec-based MPLS VPN, has been designed, and the IPSec-based realizing model also has been given. This solution have the advantage such as high-speed exchange, quality of Qos, easily expansibility and traffic...
Research the accurate detecting problems of automobile temperature sensor. For automobile temperature structure is complex and work under the conditions of high temperature and pressure, the conventional sensor faulted detection method is subjected to modeling error and external interference, which causes an improper diagnosis. In order to improve the detection accuracy, this paper put forward a fault...
When the node mobility in a Mobile Ad-hoc Network (MANET) increases, the packets delivery rate will drop and the number of routing control packets will increase, because the routes are more likely to be broken and more control messages are needed to repair the broken routes. This will impact the network capacity and QoS. Based on the fact that different nodes in an ad-hoc network have different mobility...
The paper begins with discussion on Aspect-Oriented programming (AOP), including its concept, thought, development, and advantage in handling crosscutting concerns, followed by description of the theory of constraints. Furthermore, combined AOP with first-order logic language, a new method to detect the business constraints in requirement analysis is presented, which is simple and practicable, thus...
Most traditional researches on inventory management mainly focused on inventory management of individual enterprises, especially on the algorithm analysis. This paper analyze the characteristics of the supply chain inventory management system, and then build three system dynamics models: the supplier supply chain inventory management system, the manufacturer supply chain inventory management system...
The software radio technology has get an increasingly wide application in the communication field because of its open structure and the comprehensive programmability, its signal processing usually use the design method of DSP and FPGA unifies. This method also suits in the design of radar which structure similar with SDR, some companies and the development facilities have conducted this technology...
In the paper, we put forward a new concept of reverse characteristic matrix. We give the completion theorems and completion examples when the corresponding graph of the reverse characteristic matrix of the partial matrix is a block-clique.
This paper implements a PLC(programmable logic controller) based virtual instrument that performs measure and control in mechanical characteristics test for flow control throttle in gas pipeline. The development of the instrument is based on PLC and LabVIEW IDE, which features a novel combination of leading industrial control tools to construct the virtual instrument. Since OPC(OLE for process control)...
The article introduces the object-oriented design and the inclusive software module, detailed about the software development process. The software has maintainability, expandability, portability.
Modal filtering in nulling interferometer is based on the capability of single-mode waveguides to transmit only one complex amplitude function to eliminate virtually any perturbation of the interfering wavefronts. In this recherche, we focus on realizing single-mode waveguide of chalcogenide glasses in the thermal infrared range 6–20μm. The present paper aims at introducing the component requirements...
The paper based on the diesel CA6DL2–35E3 of FAW R&DC with turbocharger, intercooler, four-valve, six-cylinder and high pressure common rail, the diesel displacement is 8.6L. We had established model of the diesel with GT-power and simulated diesel engine working process under transient operating conditions which in constant speed while torque increased. We investigated and analyzed condition...
The rapid development of auto shift technology helps improve the control strategy determination of automatic transmission in construction vehicle. The overall shift schedule is defined as the time of shift gear with the change of controlling parameters. The rule should be a unit value. Even if there are many input variables, it has the only one output state. Based on the different designed constructions...
From the viewpoints of information theory and system theory, an Information Optimizing Model is proposed based on following rules of language: efficiency, cooperation, distinction, evolution, and reliability. It proposes that language is an optimal encoding system to communicate in the most efficient way. Using this model, a hypothesis is made that when expressing the same meaning using a sentence,...
2D barcode images are always obtained in the complex background or uneven illumination situation. Basing on wavelet multi-resolution analysis, we propose a novel binarization method to 2D barcode images. Extracted from low frequency of the sub-image after wavelet decomposing, the feature vector is used as the adaptive threshold of the binarization process to the original image. By optimizing the threshold...
An intelligent forecasting method for local short term electric load is proposed based on fuzzy clustering and partitioned support vector regression (PSVR). Firstly, the scheme of this method is introduced. Then, prediction time was partitioned into three sections adaptively by means of fuzzy C-means clustering, according to the characteristics of local power load pattern. Sub-models for each section...
The article introduces the structures of Information retrieval system and retrieval process, elaborate the classification of Information retrieval, describe the evaluation index of Information retrieval.
Based on analyzing the failure mechanism of the tools spindle, the monitoring parameters, responding to the spindle failures, have been found. It will have come true that monitoring failures and early warning, by comparing the monitoring data with the safety threshold. Decomposing and re-organizing the failures signals by using wave packet, and cepstrum analysis, it can make a off-line diagnosis aimed...
A kind of laser measurement system on geometrical parameter of railway contact cable is introduced in this his paper, which uses distance sensor, angle sensor, displacement sensor ·, CCD camera and embedded data processing technology. The architecture and measurement principle of the system are proposed, the mathematics model and the error margin are described in detail, and the main parameter measurement...
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