摘要:There are communication problems among the wearable devices. One of the solutions is "Intra-Body Communication" which uses the human body as a communication media. However, the body has different response for different frequencies. This paper is trying to find out the frequencies that will have the minimum loss when passing a body by experiments. The experiments are using a pair of electrodes to inject 1V peak to peak signal of different frequencies into the forearm and to retrieve the signal from the other end. The data shows that lower loss appear at around 40MHz.
摘要:Abstract-The removal of baseline wander (BW) is a very important step in the pre-processing stage of electrocardiogram (ECG). Thus, a method for accurate removing the baseline wander (BW) in ECG on the basis of Empirical Mode Decomposition (EMD) is proposed in this paper. We briefly described the principles and characteristics of the EMD in Section Ⅱ. To validate the proposed method, the recording from MIT/BIH database is used. In this paper, the traditional median filter is also applied to remove BW in ECG for comparison with our ENID method. The BW correction results are detected by the QRS detection program. Our experimental results show that the performance of EMD method is very good and accurate in removing BW in ECG.
摘要:The car engine brake specific fuel consumption is significantly affected with effective tune-up. Current practice of engine tune-up is usually done by trial-and-error method because a formal function of the engine has not been determined yet. With an emerging technique, Support Vector Machines (SVM), the approximate engine brake specific fuel consumption of a vehicle engine can be determined by training the sample data acquired from the dynamometer. The study shows that the predicted results are good agreement with the actual test results.
摘要:本文提出了一种新的基于以太网的实时控制协议RCPBE (Real-time Control Protocol Based on Ethernet) 用以解决以太网传输的不确定性问题,阐述了该协议的基本原理并通过实验证明了该办议确实能帮助以太网实现实时数据的传输,并提出在RTLinux平台下该协议协议栈的实现方法。