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Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
Energy consumption is one of the key issues in real-time system scheduling. In this paper, a new low power algorithm (LPABOBF) is proposed for the periodic task model of real-time systems. The algorithm uses dynamic voltage scaling (DVS) to calculate the optimal static speed at the offline stage, and updates the processor speed at running time by using the slack time of both high priority tasks and...
This paper proposes a modified discrete Fourier algorithm for parameter estimation of sinusoidal signal with decaying direct current (DC) offset. First, the sinusoidal signal parameter estimating error caused by the decaying DC offset in traditional Fourier algorithm is analyzed. Then, by carrying out discrete Fourier transform (DFT) twice every half a period on the sinusoidal signal which is affected...
In order to shorten the response times of aperiodic tasks in mixed task sets in real-time systems, this paper proposes an adaptive total bandwidth server (ATBS) algorithm based on aperiodic tasks with varying executing times. This method of reducing response times of aperiodic execution by using predictive execution times instead of worst-case execution times for deadline calculations in the total...
Considering to the problem of requiring and consuming a lot of storage units by collecting the real time data in the CNC machines, an improved Swinging Door Trending (SDT) compression algorithm has been proposed to compress the massive data. Its tolerance can be adjusted dynamically according to the trend of the fluctuations of the data. In addition, Multi-models optimization method was used for function...
In order to estimate the attitude angle accurately, improve the accuracy of attitude and heading reference system(AHRS), aiming at larger errors of extended Kalman filter(EKF) in estimating attitude angle, a method based on iterative LM-CDKF algorithm has been proposed to estimate the attitude angle. In the paper, iterative filtering theory and Levenberg-Marquardt method is introduced into the central...
In order to estimate the accurate and real-time dynamic battery state of charge (SOC), owing to greater errors of extended Kalman filter (EKF) in estimating SOC, a method has been proposed to estimate the battery SOC based on LM-ICDKF algorithm. By using the two order RC equivalent circuit model, the MATLAB simulation tools are used to simulate the algorithm, this paper compares LM-ICDKF algorithm...
The problem of constructing matrix with lowcoherence is arised in many applications, such as CDMA, compressive sensing (CS), beamforming, etc. Usually the design of low-coherence codebook can be modeled as vector quantization (VQ) problem, and generalized Lloyd algorithm is designed to solve it. Since Lloyd algorithm is a method of local optimization, its performance is influenced by initial value...
the optimization algorithm plays an important role in solving the complex problems, and many complex problems can be modeled as a combinatorial optimization problem. The multi-dimensional knapsack problem is a kind of typical combinatorial optimization problem. The pollination algorithm is a kind of natural heuristic algorithm proposed in recent years, which has the characteristics of few parameter...
In view of the limitation of single-load AGV's low throughput in modern express logistics warehouse, a dynamic unlock algorithm is proposed in this paper. Dynamic unlock algorithm is used for multi-AGV scheduling problem. In order to measure system's throughput, a map environment was constructed and evaluated to compute the total complete time (TCT) and total waiting-for-start time (TWT). The final...
With the increase of the number of photovoltaic grid connected power plants and the increase of capacity, the impact on the protection and control of the grid can not be ignored. The establishment of electromagnetic transient simulation and equivalent calculation model of photovoltaic power station is the basis for studying its grid connection characteristics and its impact on relay protection. The...
Current hierarchical clustering algorithms face the risk of privacy leakage during the clustering process for big dataset. While differential privacy is a relatively recent development in the field of privacy-preserving data mining, offering more robust privacy guarantees. In the paper, BIRCH algorithm under differential privacy is studied and analyzed. Firstly, Diff-BIRCH algorithm which directly...
How to improve the efficiency of power system stability and the whole system is the main problem facing the photovoltaic power system, based on the real system experiments and the digital simulation platform for the limitations of the study, this article from the photovoltaic power generation system semi physical simulation research of power system simulation software based on the use of advanced...
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