A low-cost UWB sensor node powered by a piezoelectric harvester or solar cells

Botteron, Cyril; Briand, D.; Mishra, Biswajit; Tasselli, G.; Janphuang, Pattanaphong; Haug, Franz; Skrivervik, Anja K.; Lockhart, R.; Robert, C.; Rooij, N. F. de; Farine, P.-A.

doi:10.1016/j.sna.2016.01.011

Cited by 23 publications

(15 citation statements)

References 11 publications

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“…3. [4] have demonstrated that keeping the sensor and transmitter active for a minimum duration and the µcontroller in the deep sleep mode provides energy autonomy to the sensor node. A similar strategy is adopted for the proposed HM-WSN.…”

Section: Energy Neutral Wireless Sensor Node For Health Monitoring Apmentioning

confidence: 99%

“…Autonomous or batteryless systems [1][2][3][4][5] enable electronics to be operated without the need for replacement of batteries that are often expensive and cumbersome. A system gains energy autonomy or energy neutrality, if the energy consumed over a given time period is less than or equal to the energy harvested during the same time period [1].…”

Section: Introductionmentioning

confidence: 99%

“…Designing autonomous systems using commercially available off the shelf components (COTS) are gaining relevance as these are economically feasible compared to expensive and often inaccessible Application Specific Integrated Circuit (ASIC) based solutions [4,5]. For example, an autonomous sensor node discussed in [2] uses off the shelf components with a Thermo Electric Generator (TEG) sandwiched between an aluminium flat panel and an aluminium heatsink for temperature and humidity sensing.…”

Section: Introductionmentioning

confidence: 99%

“…The challenges to operate such systems in low light condition (e.g. indoor environment) and modelling the load precisely [7] is often challenging and is gaining interest from researchers [2] [4]. In this paper, we propose a COTS based solar energy harvesting solution and associated circuits for an energy neutral Health Monitoring Wireless Sensor Node (HM-WSN) within an indoor environment.…”

Section: Introductionmentioning

confidence: 99%

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Design Methodology for an Energy Neutral Health Monitoring Wireless Sensor Node

Pokhara

Mishra

2016

Preprint

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This paper investigates an Energy Neutral System using Micro Energy Harvesters for a Health Monitoring Wireless Sensor Node (HM-WSN). We have implemented HM-WSN consisting of a solar cell energy harvester, a Power Management Unit (PMU) and the ucontroller, sensor and transmitter acting as load. A battery extender and a switching logic circuit for sensor node is designed to evaluate the efficiency of the proposed system. The HM-WSN senses body temperature with improvement in lifetime of coincell. The HM-WSN is built using commercially available off the shelf (COTS components and consumes 47.2uW for data being updated every 134s. It can be operated for approximately 1.32 years only on a coincell. Furthermore, the HM-WSN can be operated with solar energy at 200lux, achieving 96.36 years with a combination of a coincell with an additional capacitor of 2.2mF. It attains 4.07 years to 16.87 years lifetime with the load capacitor varying from 1mF to 1.5mF at 350lux lighting condition. With the same ambient condition and a 2mF load capacitor, HM-WSN attains complete energy autonomy.

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Section: Energy Neutral Wireless Sensor Node For Health Monitoring Apmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design Methodology for an Energy Neutral Health Monitoring Wireless Sensor Node

Pokhara

Mishra

2016

Preprint

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“…In ambients where several energy sources are available, they can be exploited simultaneously or alternatively to enable continuous power supply [13]. The indoor hybrid energy harvesting devices usually exploit ambient light in conjunction with thermal energy sources [6,9], vibrations [9,10], airflow [12] or electromagnetic induction [9]. These devices either have only one power management circuit in order to reduce complexity and dissipation [6,14], or an optimized power management circuit for each energy source to obtain increased efficiency of the whole system [9,12].…”

Section: Introductionmentioning

confidence: 99%

Photovoltaic Energy Harvesting Wireless Sensor Node for Telemetry Applications Optimized for Low Illumination Levels

et al. 2016

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This paper reports the design of a photovoltaic energy harvesting device used as telemetry node in wireless sensor networks. The device draws power from the small solar cell, stores it into the primary energy buffer and backup supercapacitor, collects measured data from various sensors and transmits them over low power radio link at 868 MHz. Its design ensures reliable cold booting under very poor illumination conditions (down to 20 lx). The solar cell also enables indirect illumination level detection for the subcircuit that manages stored energy (day/night detector). The device is allowed to draw power from the backup supercapacitor only when it is not possible to gather enough energy from the solar cell during the sleep period. Short lasting and sudden drops of the illumination do not activate the backup power supply. A wireless sensor node design is adjusted to the proposed photovoltaic harvesting circuitry, so the overall power consumption in the sleep mode is less than 25 µW. Also, due to adaptive power consumption, proposed device topology ensures its autonomy time in the total darkness of 81 h. The device has been produced using commercially available components enabling versatile telemetric functionality by the implementation of different sensors.

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