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Wireless Power Transfer (WPT) is an attractive technology because it can supply power to IoT devices where battery replacement is difficult or the maintenance cost is high. Polarization Switching WPT antenna (PS-WPT antenna) is proposed in this paper. The polarization switching characteristic makes this design a good candidate for 5G-IoT sensors powered by using wireless power transfer. The 3GPP had...
With the rapid development of prognostics and health management (PHM) technologies particularly for armored equipment, the on-line distributed collection and wireless transmission of the monitoring data has become a demanding question for the researchers. Wireless sensor networks (WSNs) provide a newly measure for data acquisition of the PHM system for armored equipment, with its features of small...
A content-extraction based acceleration data compression algorithm is proposed for real-time transport quality monitoring in critical logistics applications. It splits the original data into three components, Tilt, Shock and Vibration, and compresses them separately by making use of the specific characteristics. Outstanding performances as well as low complexity and good scalability are achieved,...
The rapid development of wireless sensor network and RFID technologies offers a wide range of novel applications and services. In this paper, we present a two-layered wireless network for warehouses and supermarkets to monitor goods storage and sale, and assist for quality management and market analysis. The hierarchical architecture uses IEEE 802.15.4a impulse ultra-wideband radio (IR-UWB) communication...
A mobile and wide area deployable wireless sensor system, including hardware and software, is developed to enhance the mobility, deployment and capability of wireless sensors for networked services. Due to the dual-layer dual-directional wireless communication capability of a novel WAN-SAN coherent architecture and the removal of fix-installed gateway, all sensor nodes are remotely controllable and...
An enhanced dual-layer wide area wireless sensor network (WSN) system was developed and applied in fresh food tracking application. The sensor nodes of WSN provide a set of useful measurements about the environmental conditions during the fresh food transportation. Since the 3-axis acceleration data in such application account for more than 99% out of all collected source data, we propose a novel...
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