具有影像傳送功能之IEEE 802.15.4
生醫感測平台實作

無線感測網路應用於居家健康照護服務已日益蓬勃發展。具有影像與生醫訊號傳送功能的無線感測網路也日益被需求，因此，本研究實做一個基於ZigBee無線感測系統的DSP平台具有生醫與影像訊號傳送的功能。本DSP裝置能主動偵測使用者身上的ECG、血壓、SpO2與體溫應用ZigBee傳送到系統管理端。更進一步，突破ZigBee頻寬限制，應用DSP所提供的效能傳送由CMOS感測器裝置所輸入的壓縮影像，藉由ZigBee把使用者的壓縮影像傳送到系統管理端，再由系統解壓縮後解讀影像資訊。因此，我們所設計具影像傳送功能的DSP平台是MSP430平台所無法完成的功能。最後，本研究擬出一套完整且具有高可靠度的數位硬體平台設計程序，整合影像與無線感測電路介面。一般，對於一個沒有設計數位系統經驗的電子工程師而言，若是直接將過去的設計法則帶入系統的設計中，則系統將會因為非理想因素而變的不穩定而不可靠。這個設計流程可幫助電子工程師於電子電路設計階段時，藉由板級的信號完整性模擬軟體，分析信號在PCB上傳播的情形，進而找出較適當的PCB佈局規範，此仍是系統廠商在PCB佈局技術上所追求的主要目標之ㄧ。

關鍵字

無線感測網路； ECG ； SpO2 ；體溫； DSP ；信號完整性；佈局規範。

並列摘要

The Wireless Sensor Network (WSN) is a developing area today in the health-care service industry. The image transmission function has been demanded day by day in various applications. Hence, based on the ZigBee WSN, we design and implement a DSP platform with the Bio-information and image transmission functions in this study. Our DSP device can actively detect the ECG, blood pressure, SpO2, and body temperature of the user, and then transmit the bio-information to the system management by the ZigBee WSN. Moreover, for conquering the bandwidth limitation of the ZigBee applications, we apply the high performance of DSP to transmit the compression image from the CMOS sensor device to the system management by the ZigBee WSN. Then, the system can decompress this compression image by its computation power. Therefore, the performance of the MSP430 platform cannot be met the requirement of the image transmission function in the DSP design one. Finally, we propose a completed high-reliability design procedure for the high-speed digital hardware platform, which can integrate the image and WSN interface. Generally, a traditional layout rulers cannot be met the high requirements in the system for unstable signal in un-ideal factors. During the design phase, our proposed design procedure can help us to analyze the signal propagation condition of the PCB (Printed Circuit Board) design by simulation software of the board level signal integrality. Moreover, the better parameters of layout rulers can be devised by this procedure. Using our proposed layout rulers to be applied the design of the DSP schematics, designer can effectively build the reliable hardware platform, and then promote the system performance. Also, such layout technologies are the major pursuit goal of the ODM manufacturers overall on the PCB design.

並列關鍵字

WSN ； ECG ； SpO2 ； Body temperature ； DSP ； Signal integrity ； Layout rulers

參考文獻

[11] 詹皓羽，「光體積變化描記圖之心血管功能診斷應用」，私立中原大學電機工程學系碩士學位論文。

[3] K. I. Hwang, J. In, N. K. Park, and D. S. Eom, “A Design and Implementation of Wireless Sensor Gateway for Efficient Querying and Managing through World Wide Web”, IEEE Transactions on Consumer Electronics, Vol. 49, No. 4, Nov. 2003.

[5] R. G. Lee, H. S. Chen, C. C. Lin, K. C. Chang, and J. H. Chen, “Home Telecare System Using Cable Television Plants—An Experimental Field Trial”, IEEE Transations on Consumer Electronics, Vol. 49, No. 4, pp. 1090−1097, 2003.

[6] R. G. Lee, C. C. Hsiao, C. C. Chen, and M. S. Liu, “A Mobile-Care System Integrated with Bluetooth Blood Pressure and Pulse Monitor, and Cellular Phone”, IEICE Transactions on Inf. Technol. Biomed., Vol.E89, No.5, pp. 1702–1711, 2006.

[7] W. K. Park, I. Han, and K. R. Park, “ZigBee Based Dynamic Control Scheme for Multiple Legacy IR Controllable Digital Consumer Devices“, IEEE Transations on Consumer Electronics, Vol. 53, No. 1, Feb. 2007.

國際替代計量

具有影像傳送功能之IEEE 802.15.4 生醫感測平台實作

全文下載

主題瀏覽