Warp: A Hardware Platform for Efficient Multimodal Sensing With Adaptive Approximation

Stanley-Marbell, Phillip; Rinard, Martin

doi:10.1109/mm.2019.2951004

Cited by 11 publications

(8 citation statements)

References 19 publications

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“…Data from additional sensors was collected during the gas tests, including pressure, temperature, humidity data from a Bosch BME680 sensor and CO 2 concentration data from a SCD30 optical sensor. The sensors were interfaced for data logging using a Warp RevC board 27 .…”

Section: Methodsmentioning

confidence: 99%

Miniaturized thermal acoustic gas sensor based on a CMOS microhotplate and MEMS microphone

Hopper

Popa

Udrea

et al. 2022

Sci Rep

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We present a miniaturised thermal acoustic gas sensor, fabricated using a CMOS microhotplate and MEMS microphone. The sensing mechanism is based on the detection of changes in the thermal acoustic conversion efficiency which is dependent on the physical properties of the gas. An active sensing element, consisting of a MEMS microphone, is used to detect the target gas while a reference element is used for acoustic noise compensation. Compared to current photoacoustic gas sensors, our sensor requires neither the use of gas-encapsulated microphones, nor that of optical filters. In addition, it has all the benefits of CMOS technology, including production scalability, low cost and miniaturization. Here we demonstrate its application for CO$$_2$$ 2 gas detection. The sensor could be used for gas leak detection, for example, in an industrial plant.

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Section: Methodsmentioning

confidence: 99%

Miniaturized thermal acoustic gas sensor based on a CMOS microhotplate and MEMS microphone

Hopper

Popa

Udrea

et al. 2022

Sci Rep

Self Cite

View full text Add to dashboard Cite

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“…Bateryless, energy-harvesting devices are emerging to support sensing, communication, and computation with no bateries for energy storage [12,26,28,64,67]. hese devices harvest energy from light [12,35], radio waves (RF) [64], user interaction [37] or other sources, storing the energy in a capacitor or super-capacitor and using it when suicient energy accumulates to do useful work.…”

Section: Bateryless Systemsmentioning

confidence: 99%

Camaroptera: A Long-range Image Sensor with Local Inference for Remote Sensing Applications

Desai

Nardello

Brunelli

et al. 2022

ACM Trans. Embed. Comput. Syst.

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Batteryless image sensors present an opportunity for long-life, long-range sensor deployments that require zero maintenance and have low cost. Such deployments are critical for enabling remote sensing applications, e.g. instrumenting national highways, where individual devices are deployed far (kms away) from supporting infrastructure. In this work, we develop and characterize Camaroptera, the first batteryless image-sensing platform to combine energy-harvesting with active, long-range (LoRa) communication. We also equip Camaroptera with a Machine Learning-based processing pipeline to mitigate costly, long-distance communication of image data. This processing pipeline filters out uninteresting images, and only transmits the images interesting to the application. We show that compared to running a traditional Sense-and-Send workload, Camaroptera’s Local Inference pipeline captures and sends upto 12 × more images of interest to an application. By performing Local Inference , Camaroptera also sends upto 6.5 × fewer uninteresting images, instead using that energy to capture upto 14.7 × more new images, increasing its sensing effectiveness and availability. We fully prototype the Camaroptera hardware platform in a compact, 2cm x 3cm x 5cm volume. Our evaluation demonstrates the viability of a batteryless, remote, visual-sensing platform in a small package that collects and usefully processes acquired data and transmits it over long distances (kms), while being deployed for multiple decades with zero maintenance.

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“…Among the most common analytical methods in sensor platforms that use the selective interactions for response formation are Raman spectroscopy (151), UV-VIS spectroscopy (152,153), and electrochemical methods of analysis [amperometry (154), cyclic voltammetry (155), potentiometry (156), and electrochemical impedance spectroscopy (157)]. Multielectrode electrochemical systems (158,159) and multimodal sensing platforms (160,161) allow control of many parameters (162,163). Recognition-/sensitive-layer modification provides selectivity, signal stability, and the ability to integrate a sampling step directly into sensor design.…”

Section: Multisensor Electrochemical Platformsmentioning

confidence: 99%

Infochemistry and the Future of Chemical Information Processing

Ryzhkov

Nikolaev

Ivanov

et al. 2021

Annu. Rev. Chem. Biomol. Eng.

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Nowadays, information processing is based on semiconductor (e.g., silicon) devices. Unfortunately, the performance of such devices has natural limitations owing to the physics of semiconductors. Therefore, the problem of finding new strategies for storing and processing an ever-increasing amount of diverse data is very urgent. To solve this problem, scientists have found inspiration in nature, because living organisms have developed uniquely productive and efficient mechanisms for processing and storing information. We address several biological aspects of information and artificial models mimicking corresponding bioprocesses. For instance, we review the formation of synchronization patterns and the emergence of order out of chaos in model chemical systems. We also consider molecular logic and ion fluxes as information carriers. Finally, we consider recent progress in infochemistry, a new direction at the interface of chemistry, biology, and computer science, considering unconventional methods of information processing. Expected final online publication date for the Annual Review of Chemical and Biomolecular Engineering, Volume 12 is June 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Warp: A Hardware Platform for Efficient Multimodal Sensing With Adaptive Approximation

Cited by 11 publications

References 19 publications

Miniaturized thermal acoustic gas sensor based on a CMOS microhotplate and MEMS microphone

Miniaturized thermal acoustic gas sensor based on a CMOS microhotplate and MEMS microphone

Camaroptera: A Long-range Image Sensor with Local Inference for Remote Sensing Applications

Infochemistry and the Future of Chemical Information Processing

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