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25,002 Article Results

Single-Event-Upset Mitigation Placement and Routing Algorithms for Field-Programmable Gate Arrays

10.11591/ijeecs.v12.i10.pp7422-7429
Ren Xiaoxi , Wu Chu , Ding Yu
To reduce the effects of single-event upsets (SEUs) on field-programmable gate arrays (FPGAs), we propose anti-VPR, an anti-SEU algorithm. The Anti-VPR algorithm is based on VPR, a popular placement and routing tool. The proposed algorithm optimizes the FPGA place cost function and reduces the occurrence of errors, such as open circuit error and short circuit error, by computing the error propagation probability and node error rate of the Configurable Logic Blocks. The Anti-VPR algorithm is implemented and tested on several MCNC benchmark circuits. Experimental results show that the proposed Anti-VPR algorithm achieves a 36.2% greater reduction of sensitive bits compared with the original VPR algorithm without the need for extra hardware overhead, unlike the traditional TMR approach.
Volume: 12
Issue: 10
Page: 7422-7429
Publish at: 2014-10-01

Theory of the Solution of Inventive Problems for Flexure Design in Micro-Electro-Mechanical Systems

10.11591/ijeecs.v12.i10.pp7202-7208
Huiling Yu , Shanshan Cui
In this paper detail of the optimization of a flexure design which is used in many MEMS devices will be presented. Due to a difference in thermal expansion coefficients between the flip-chip bonded MEMS device and the substrate, cooling after bonding can cause the MEMS to buckle; It is necessary to decrease the influence of distortion by using the correct material selection, welding method, weld design, fixture design, temperature control and TRIZ. We can seek out principles that can solve the problem. It can be concluded that an optimal flexure design will include the longest fold length and smallest fold spacing possible. By solving the deformation problem of MEMS devices can promote the development of flip chip technology, and make for the further application of the TRIZ theory in the study of forestry equipment.
Volume: 12
Issue: 10
Page: 7202-7208
Publish at: 2014-10-01

A New Systemic Safety Detecting Software

https://ijeecs.iaescore.com/index.php/IJEECS/article/view/3889
Xilong Qu , Yingjun Wang
Because it is hard to find and to clear cockhorse and virus developed by root kit technology, antivirus soft at present is hard to clear virus in the system, which make the system in dangers status of hazard. So, designing a speedy clear Trojan and virus makes by root kit is very important. The article.is based on SDK, adopting the technology.of kernel to design the Clairvoyant systemic safety detecting software. It major function is monitors.the service of the system and the operation. Monitor the register changer. Search the file, process, system module hided by the virus. It can also end protected processes and delete protected files forcibly. Through the port.mapping of processes, it can find.port messages opened.by system, processes opening ports and.cockhorse effectively. http://dx.doi.org/10.11591/telkomnika.v12i10.5345 
Volume: 12
Issue: 10
Page: 7389-7394
Publish at: 2014-10-01

Lock-in Amplifier as a Sensitive Instrument for Biomedical Measurement : Analysis and Implementation

10.11591/ijeecs.v12.i10.pp7214-7222
Yasser Abd Djawad , Janice Kiely , Patrick Wraith , Richard Luxton
A measuring instrument plays important role in the biomedical measurement since the biological process in living organism generates very weak signal. Therefore, a reliable and sensitive measuring instrument is needed. In this study, a lock-in amplifier was analysed and tested. This paper presents an experiment to investigate the lock-in amplifier for biomedical measurement. An experiment using RC (resistor capacitor) tissue model to measure the voltage change related to impedance change was performed using a lock-in amplifier to evaluate the accuracy of the lock-in amplifier. Three different values of the capacitor in the RC tissue model were applied regarding to simulate small impedance changes. The measurement results were compared with the theoretical calculation and an impedance measurement system. An error analysis was conducted to investigate the accuracy of the measurement. The comparison result showed that impedance measurement using lock-in amplifier is an effective technique, which could able to measure very small voltage regarding impedance change in the RC tissue model.
Volume: 12
Issue: 10
Page: 7214-7222
Publish at: 2014-10-01

An Efficient Data Transmission by using Modern USB Flash Drive

https://ijece.iaescore.com/index.php/IJECE/article/view/5526
B.Naresh Kumar Reddy , N. Venktram , Sireesha Sireesha
Now a day’s Electronics plays a vital role in our daily life. It is a key in making this world a small and making everything happen at our finger tips, today’s most used and flexible is USB flash drives, which is used to store the data and data transfer between them related with computer, and we are not able to share files between two USB flash drives when user is away from computer. So to overcome this problem we are designing a complete blend of hardware and software With the help of this project we can not only transfer the data but also we can see the transfer of the particular file which we want to send by using LCD display. In our proposal we are transferring the data between two USB flash drives using two ways. One is Wireless Technology either Wi-Fi technology which we can send/receive File or Bluetooth Technology which we can send/receive data to USB flash drive with Bluetooth enabled devices like Mobiles, laptops etc.. Another is in-built USB slots to perform data transmission to other pen drives directly without the use of the computer system. The implementation of an operating system and a processor to the USB Flash drive are the main challenges in this proposed system.DOI:http://dx.doi.org/10.11591/ijece.v4i5.6577
Volume: 4
Issue: 5
Page: 730-740
Publish at: 2014-10-01

Research on Grain Yield Prediction Method Based on Improved PSO-BP

10.11591/ijeecs.v12.i10.pp7404-7411
Liguo Zhang , Jiangtao Liu , Lifu Zhi
Aimed at the highly nonlinear and uncertainty of grain yield changes, a new method for grain yield prediction based on improved PSO-BP is proposed. By introducing mutation operation and adaptive adjust of inertia weight, the problem of easy to fall into local optimum, premature, low precision and low later iteration efficiency of PSO are solved. By using the improved PSO to optimize BP neural network’s parameters, the learning rate and optimization capability of conventional BP are effectively improved. The simulation results of grain production prediction show that the predict accuracy of the new method is significantly higher than that of conventional BP neural network method, and the method is effective and feasible.
Volume: 12
Issue: 10
Page: 7404-7411
Publish at: 2014-10-01

Weakest Buses Identification and Ranking in Large Power Transmission Network by Optimal Location of Reactive Power Supports

10.11591/ijeecs.v12.i10.pp7123-7130
Mohammed Amroune , Aref Bourzami , Tarek Bouktir
The detection of voltage collapse is essential to avoid possible voltage collapse for the preventive control actions and voltage security assessment. One effective way to know the locations where voltage collapses could be appear is to identify weakest buses in the systems. The weakest bus is the first point where voltage collapses appear in a severe contingency. This paper proposes a technique to evaluate the weakest bus in large scale power system based on the optimal position of reactive power supports. To solve the optimization problem, Differential Evolutionary (DE) technique is used. The fitness function consists of cost, power losses and Load voltage stability index (Lmn) which satisfying all operational constraints. Lmn is used as the indicator for voltage stability margin and weakest bus identification. The method is applied on standard IEEE 30 bus, 57 bus and 118 bus test systems to show their comparative computing effectiveness.
Volume: 12
Issue: 10
Page: 7123-7130
Publish at: 2014-10-01

Assessment of Intelligent Substation Based on an Improved Fuzzy Sets Method

10.11591/ijeecs.v12.i10.pp7082-7091
Yuanchao Hu , Lina Yao , Jiangjun Ruan , Yunzhu An , Fan Chen
In the construction process of smart grid, an assessment on primary equipments intelligent transformation is an urgent content in the first batch of intelligent substation pilot project. Wide investigation of intelligent substation pilot projects was conducted seriously in several regional power grids in China. An mathematical model was established to assess the substation primary equipments intelligent transformation firstly; then, the Vague sets multi-objective decision theory was applied to the assessment model and the consistency inspection and weight solving method of Vague set theory was improved in this paper. Finally, a practical example was given to show the rationality and accuracy of the above improved method. The method can provide practical guidance to assess primary equipments intelligent transformation.
Volume: 12
Issue: 10
Page: 7082-7091
Publish at: 2014-10-01

Provably Secure and Efficient ID-based Strong Designated Verifier Signature Scheme with Message Recovery

10.11591/ijeecs.v12.i10.pp7343-7352
Min Li
Many ID-based strong designated verifier signature schemes have been proposed in recent years. However, most of them did not give the rigorous security proofs and did not satisfy the strongness property that anyone except the designated verifier can not check the validity of a designated verifier signature, In addition, considering some special applications, these schemes have larger data size of communication. To overcome those problems, exploiting message recovery techniques which are regarded as a useful method to shorten ID-based signatures' size, we put forward an efficient ID-based strong designated verifier signature schemes with message recovery and give its rigorous security proof in the random oracle model based on the hardness assumptions of the computational Bilinear Diffie-Hellman problem in this paper. To the best of our knowledge, it is the first ID-based strong designated verifier signature schemes with message recovery and rigorous security proofs. Due to its merits, it can be used in some special environments where the bandwidth is one of the main concerns, such as PDAs, cell phones, RFID etc.
Volume: 12
Issue: 10
Page: 7343-7352
Publish at: 2014-10-01

Research on Multichannel Test Device of Missile Fuze

10.11591/ijeecs.v12.i10.pp7196-7201
Guoyong Zhen , Yanhu Shan , Yiran Wei
This paper introduces the design of multichannel acquisition circuit based on FPGA which samples and records the Doppler signals, ignition signal and the working condition of fuze security enforcement agencies of missile fuze in real-time in the test of high speed dynamic intersection. Furthermore, for the problem of increasing number of sample channel which causes the complexity of the multiplexer control, a general programmable channel switching method is proposed based on FPGA. In the method, FPGA is the control core, and using the internal ROM resource effectively simplifies the complexity of channel switch in the multichannel acquisition system. This paper analyzes the acquisition system design, and describes the design of hardware circuit and analog switch address coding in detail. The test result shows that the acquisition circuit meets the design requirements with high sampling precision and application value.
Volume: 12
Issue: 10
Page: 7196-7201
Publish at: 2014-10-01

Effects of Non-Uniform Channel Geometry on Double-Gate MOSFET Performance

10.11591/ijeecs.v12.i10.pp7186-7190
Xu Huifang , Dai Yuehua , Zheng Changyong , Xu Jianbin , Yang Jin , Dai Guangzhen
A Double-gate (DG) MOSFET with non-uniform channel (NUC) geometry, that is, the silicon thickness of embedded in double-gate is varied linearly from drain to source, is proposed. To quantitatively assess the effects of the NUC geometry on electrical characteristics of DG MOSFETs, the short-channel effects (SCEs) and the on-state current are numerically calculated for the device with different non-uniform channel thickness, channel length and gate oxide thickness respectively. To the proposed structure, the SCEs are suppressed, the subthreshold swing becomes smaller and the on-state current is significantly improved when the thickness of silicon lied at source becomes thinner, showing better performances than the conventional DG MOSFETs.
Volume: 12
Issue: 10
Page: 7186-7190
Publish at: 2014-10-01

Two Distance Formulae For The Two Vague Sets

10.11591/ijeecs.v12.i10.pp7533-7542
Zhang Kun , Wang Hong-xu , Wang Faifeng , Li Zhuang
It needs to calculate the distance between the vague sets based on the approximate reasoning on the clustering rules of vague set. In this study, two new distance formulae for vague sets are presented, which are proved to satisfy the known axioms. With a suitable distance formula, a more reasonable clustering of Vague set rule can be obtained. Therefore, the searching scope of vague reasoning is decreased, and the reasoning complexity is reduced in the approximate reasoning of Vague set rules.
Volume: 12
Issue: 10
Page: 7533-7542
Publish at: 2014-10-01

Research on Static Tension Ratio Characteristic of Double-Vessel Friction Hoist System Components

10.11591/ijeecs.v12.i10.pp7108-7113
Xie Lirong , Ge Laifu , Kong Jun , Cheng Jing
Double-vessel multi-rope friction hoist system, of which the lifting, starting, running, and braking must meet the safety conditions in operation. Non-skid safety boundary conditions were originally determined by Euler’s formula. In order to avoid the complex task of check and check-again calculation in the friction hoist system design. In this research, static tension ratio c, which was closely bonded with anti-skid design was directly brought into the analysis and research on the system. As a result, characteristic of static tension ratio c of component quality of friction hoist system was found, which offers a simple, sound and reliable theoretical foundation for the anti-skid and optimization of system configuration.
Volume: 12
Issue: 10
Page: 7108-7113
Publish at: 2014-10-01

Anti-Occlusion Algorithm for Object Tracking Based On Multi-Feature Fusion

10.11591/ijeecs.v12.i10.pp7381-7388
Jie Cao , Liang Xuan
Complex background, especially when the object is similar to the background in color or the target get blocked, can easily lead to tracking failure. Therefore, a fusion algorithm based on features confidence and similarity was proposed, it can adaptively adjust fusion strategy when occlusion occurs. And this confidence is used among occlusion detection, to overcome the problem of inaccurate occlusion determination when blocked by analogue. The experimental results show that the proposed algorithm is more robust in the case of the cover，but also has good performance under other complex scenes.
Volume: 12
Issue: 10
Page: 7381-7388
Publish at: 2014-10-01

Automated Data Processing for Monitoring Based on Median Algorithm

10.11591/ijeecs.v12.i10.pp7274-7279
Yan Du , Mowen Xie , Xiaoli Yang , Qiuqiang Liu
As introduction of the automation equipment, hardware automation level on reservoir has greatly improved. For the restriction of the software performance and technical personnel, data reorganization far failed to meet the requirements of hardware. Base on the research on domestic and foreign technique, it is concluded that a set of data transformation methods suitable for the automation system of the small and medium-sized dams. Through the median denoising processing and eigenvalue automatic statistical techniques, a large amount of data can be screened and filtered. The method can solve practical engineering problems and meet the need of automation equipment.
Volume: 12
Issue: 10
Page: 7274-7279
Publish at: 2014-10-01
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