Wireless Voltage Regulation for Passive Transponders Using an IF to Communicate

Pillin, Nicolas; Joehl, N.; Dehollain, Catherine; Declercq, M.

doi:10.1109/tcsi.2009.2024972

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The stainless steel probe equipped in the sensor guarantees its applicability, extensive use and long service life. The air moisture and temperature sensor comes from KM63B9X small shutter-shaped temperature and humidity sensor, which is specially designed for environmental monitoring during agricultural production (Pillin et al, 2010). The inserted core sensors are all of premium quality.…”

Section: Design Of the Data Acquisition Partmentioning

confidence: 99%

Design and application of cloud platform based soil moisture monitoring system at the farm level

2017

Revista de la Facultad de Ingeniería

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Abstract:The cloud platform based soil moisture monitoring system at the farm level is mainly used for remote monitoring, storage and analysis of agricultural ecological factors and their videos in real time. The system is composed of solar powered soil moisture collector, video collector, self-made farm-level map, GPS location, cloud data service center, web-based client and mobile-based client. These servers and devices have realized several functions such as intelligent multi-block data acquisition, solar power supply, unattended operation all year round, and satellite upload in image/data format. Also, data is independently managed and checked in the cloud data service center and the clients, respectively. We conducted an in-situ test on the performance of the system in Qingfeng Farm, Heilongjiang Province. The test result shows that the system can be installed regardless of locations and surrounding environments, and can acquire dynamic and real-time information of soil moisture and crop growing conditions, thus providing scientific basis for improving soil water utilization rate.

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Section: Design Of the Data Acquisition Partmentioning

confidence: 99%

Design and application of cloud platform based soil moisture monitoring system at the farm level

2017

Revista de la Facultad de Ingeniería

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“…Implementing efficient WPT and RF EH is not a simple task, because even though RF energy offers high pervasiveness and the ability to be directed to out-of-sight locations, its power conversion efficiency (PCE) remains very low. All this has already prompted many researchers to contribute highly enlightening papers on the subject [50][51][52][53][54][55][56][57][58][59][60][61][62][63][64][65][66][67]. This paper contributes to this field of research with an investigation of RF WPT between a power transmitter (reader) and an RF self-powered, battery-less BLE tag within a WSN infrastructure.…”

Section: Introductionmentioning

confidence: 97%

Advanced Monitoring Systems Based on Battery-Less Asset Tracking Modules Energized through RF Wireless Power Transfer

Rosa

Dehollain

Livreri

2020

Sensors

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Asset tracking involving accurate location and transportation data is highly suited to wireless sensor networks (WSNs) featuring battery-less nodes that can be deployed in virtually any environment and require little or no maintenance. In response to the growing demand for advanced battery-less sensor tag solutions, this article presents a system for identifying and monitoring the speeds of assets in a WSN with battery-less tags that receive all their operating energy through radio frequency (RF) wireless power transfer (WPT) architecture, and a unique measurement approach to generate time-domain speed readouts. The assessment includes performance characteristics and key features of a system on chip (SoC) purposely designed to power a node through RF WPT. The result is an innovative solution for RF to DC conversion able to address the principal difficulties associated with maximum power conversion efficiency (PCE) with sensitivity and vice versa, a strategy, and a design optimization model to indicate the number of readers required for reliable asset identification and speed measurement. Model validation is performed through specific tests. Experimental results demonstrating the viability of the proposed advanced monitoring system are provided.

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“…For this reason, where possible, such as in low duty-cycle sensors, it is by far preferred to implement battery-free devices, with the evident advantage to render them not-disposable, with virtually unlimited lifetime and more cost efficient [7]. For this reason, batteries are normally avoided and this leads engineers to choose, as power source, primarily RF Wireless Power Transfer (WPT) and where possible even radio-frequency (RF) Energy Harvesting (EH) [8]- [11]. Except for the case of a few centimeters distance between the power source and the supplied device [12], [13], efficient WPT and RF EH is not a simple task [14].…”

Section: Introductionmentioning

confidence: 99%

An RF Wireless Power Transfer system to power battery-free devices for asset tracking

Rosa

Dehollain

Pellitteri

et al. 2019

2019 26th IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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Internet of Things (IoT) and Wireless Sensor Networks (WSN) infrastructures are becoming more and more available and diffused. One major outcome is the development of new services that help to make everyday life easier and better. One of those to which this paper reserves special attention is asset tracking which refers to the method of tracking physical assets. This service is very well based on IoT infrastructure and, due to the enormous number of objects to be traced, desperately needs the availability of inexpensive tags with sensing capabilities, that can be conveniently monitored from a long distance and require no maintenance. For this, engineers are called to face very challenging issues. One of these is how to power a maintenance-free tag that consequently must be battery-free. This paper deals with the investigation of a system based on radio frequency (RF) Wireless Power Transfer (WPT) that powers a battery-free tag for asset tracking, in which the major challenge is that the WPT deals with dynamic objects at different speeds. The performances and key features of a system on chip (SoC) specifically designed to power a tag by means of RF WPT will be investigated. The aim is to provide a strategy and a model to design the infrastructure by providing the number of hot-spots needed to perform successfully the identification of an asset. Validation of the model has been done by means of specific tests and experimental results are provided.

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Wireless Voltage Regulation for Passive Transponders Using an IF to Communicate

Cited by 3 publications

References 7 publications

Design and application of cloud platform based soil moisture monitoring system at the farm level

Design and application of cloud platform based soil moisture monitoring system at the farm level

Advanced Monitoring Systems Based on Battery-Less Asset Tracking Modules Energized through RF Wireless Power Transfer

An RF Wireless Power Transfer system to power battery-free devices for asset tracking

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