Designed by Ruictec in China, the TD04 is a LoRa-based low-power tracker that also features BLE and dual-band GNSS. It ...
Abstract: Wireless self-powered systems based on RF energy harvesting (RFEH) have emerged as an effective solution to the energy challenges in Internet of Things (IoT) devices. However, two critical ...
Abstract: In sensor networks with anisotropic properties, including irregular layout sensors, poor network connectivity and so on, employing traditional localization methods may lead to poor ...
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