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该论文提出了一种用于电子皮肤的无线多通道电阻电容传感器节点，采用类CDMA的电阻/电容-电压转换器同时记录16通道电阻和16通道电容传感器，并集成了边缘编码PWM UWB收发器实现低功耗无线传输。在70µW功耗和1.19mm²面积内实现了32通道传感与无线通信。
Emerging wireless multi-channel resistive and capacitive (RC) sensor interface circuits provide opportunities for various applications such as environmental monitoring [1], wearable [2] and human-computer interaction [3]. Previous works either only support single-channel sensor readout [1], or lack efficient wireless transmission [2-5]. This work presents an energy- and area-efficient wireless multi-channel RC sensor node for electronic skins. In this sensor node, a CDMA-like resistance/capacitance-to-voltage converter (RCVC) is proposed to simultaneously record 16-channel resistive and 16-channel capacitive sensors with compact chip area. In addition, an edge-encoded PWM UWB radio is incorporated for wireless data transmission. The power efficiency of the sensor node is further boosted by duty-cycling. The system architecture of the proposed wireless multi-channel sensor node is illustrated⟶ in Fig. 23.2.1. For simultaneous recording
Yuxuan Luo, Yida Li, Aaron Voon-Yew Thean, Chun-Huat Heng
National University of Singapore, Singapore, Singapore