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为更好地满足人体健康监护需求,文中提出基于IEEE802.15.4的智能服装传感器网络以实现人体各种生理信号的采集与传输。文章以心电信号为主要研究对象,设计了一种GE-WSN无线传输方案,验证了它的有效性和可靠性。通过NS2仿真比较了不同传输机制中的网络性能和网络传输能量,得出GE-WSN应采用信标使能的时隙载波帧听多点接入/冲突避免的传输机制。
In order to better meet the needs of human health monitoring, the article proposes a smart clothing sensor network based on IEEE802.15.4 to realize the collection and transmission of various physiological signals of the human body. Taking ECG signal as the main research object, this paper designs a kind of GE-WSN wireless transmission scheme, verifying its validity and reliability. The NS2 simulation compares the network performance and network transmission energy in different transmission mechanisms and concludes that GE-WSN should adopt a beacon-enabled transmission mechanism for multi-slot access / collision avoidance.