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Compared with other mature wireless technology, Bluetooth technology has many properties, such as short-distance convenience communications and devices controlling. The central technology of this paper is Bluetooth wireless communication technology, which is based on portable ambulatory ECG device and smart phones. Such systems could provide an original and flexible wireless monitoring scheme for...
The paper studies the switching problem of reactive power compensation capacitor banks, and advances a designation scheme of trends reactive power compensation control system based on DSP-PIC which uses adaptive control technology, zero-voltage and zero-current switching control technology. The scheme can make the system always running in the optimal state.
Data broadcasting is an important technology to improve the retractility of mobile computation system in unsymmetrical network. In the paper, a kind of multi-disk broadcasting dispatching technology is presented based on hyper graph, which can determine the amount of disks, the contribution of data items to each disks and their relative frequency by computer. The theoretical analysis and experiment...
A smooth and simple robust tracking controller is presented for a class of nonlinear systems with unmatched uncertainties and a strong relative degree in the paper. Using the technique of feedback linearization and Lyapunov approach, the designed controller can suppress forwardly the influence of uncertainties. Meanwhile, there is no Lyapunov functions in controller but concrete controller expression...
In order to reduce the restrained conditions on the disturbance, a robust tracking control approach is presented based on fuzzy disturbance observer for a class of uncertain nonlinear MIMO systems. Novel parameters update laws based on Lyapunov theory and control laws are proposed to guarantee that all the signals in the system are uniformly ultimately bounded and achieve given tracking performance...
This article analyzes the interference problems existed in the running process of network communication electronic equipment. According to the typical problems about universal electromagnetic compatibility and anti-jamming in the network engineering practice, such as grounding technology problem, application of circuit isolation technology, cable interference suppression, improvements in the quality...
According to the waveform distortion problem existed in the portable ambulatory electrocardiogram (ECG) monitoring system and analyzing the wireless Bluetooth technology working principle used in portable ECG monitoring system, the paper proposes an overall design idea of portable ambulatory ECG monitoring system based on Bluetooth and implementation program of system hardware and software . It can...
This paper presents an auto-recognition system of pointer table computer. It analyzes the method to locate image of pointer in this system. And TLS, which is used to solve the pointerpsilas fitting line problem, is proposed with its formulas deduced process. In comparison with LMS, it isnpsilat influenced by the posture of pointers, and can fitting the location of the center of pointer table in precision...
The paper presents a fuzzy control method with self-regulation factors and integral parameter self-tuning link for the problem of poor dynamic accuracy existed in traditional fuzzy control. This method adds optimization of adjustment factors and a self-adaptive coefficient integrator based on the conventional fuzzy control. Theoretical analysis and MATLAB simulation results show the effectiveness...
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