Hybrid analog-digital backscatter platform for high data rate, battery-free sensing

Hybrid analog-digital backscatter platform for high data rate, battery-free sensing
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DOI：
10.1109/wisnet.2013.6488614
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发表时间：
2013-03
期刊：
2013 IEEE Topical Conference on Wireless Sensors and Sensor Networks (WiSNet)
影响因子：
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通讯作者：
Vamsi Talla;Michael Buettner;D. Wetherall;Joshua R. Smith
Vamsi Talla;Michael Buettner;D. Wetherall;Joshua R. Smith
中科院分区：
其他
文献类型：
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作者：
Vamsi Talla;Michael Buettner;D. Wetherall;Joshua R. Smith

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提出了一种适用于高速无电池无线传感的模拟-数字混合后向散射平台。数字RFID平台(WIP)已经与模拟传感器(麦克风)集成，以开发数字可寻址的RFID标签，该标签使用模拟后向散射用于传感器数据(音频)的高数据速率传输。混合式WISP在两种模式下运行：数字模式(默认模式)，用于发送和接收数字数据(根据EPC第二代RFID协议)和模拟模式(由第二代读取命令激活)，用于反向散射音频传感器数据。我们报告了这种可数字寻址、无电池的无线音频传感器的工作范围超过4米。
This paper presents a hybrid analog-digital backscatter platform for high data rate battery free wireless sensing. A digital RFID platform (WISP) has been integrated with an analog sensor (microphone) to develop a digitally addressable RFID tag which uses analog backscatter for high data rate transmission of sensor data (audio). The hybrid WISP operates in two modes: digital mode (default mode) to transmit and receive digital data (as per EPC Gen 2 RFID protocol) and analog mode (activated by Gen 2 READ command) to backscatter audio sensor data. We report an operating range of more than 4 meters for the digitally addressable, battery free wireless audio sensor.