Long-Range Human Body Sensing Modules with Electric Field Sensor

Togura, Takeshi; Nakamura, Yasushi; Akashi, Kazuya

doi:10.4271/2008-01-0909

Cited by 6 publications

(6 citation statements)

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“…Togura et al [18] discussed that since the human body is highly conductive and is much larger than the sensor electrodes, it can be assumed that the head is directly coupled to ground. In the electrostatic modeling provided in this paper, the human head is assumed to conduct current through C TH and C RH directly to ground.…”

Section: Methods Of Electric Field Sensing and Modelingmentioning

confidence: 99%

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Vehicle Occupant Head Position Quantification Using an Array of Capacitive Proximity Sensors

Ziraknejad

Lawrence

Romilly

2015

IEEE Trans. Veh. Technol.

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He has more than 15 years of experience and several academic and industry-related publications on the design, development, and implementation of embedded real-time machine vision systems with applications in mining, oil and gas, automotive, biomedical, and residential industries. In 2009, he founded NZ Technologies Inc. (NZTech) in hopes of developing specialized real-time embedded machine vision solutions to improve safety, mitigate injuries, and introduce advanced human-machine interactions to the aforementioned industrial sectors. He is currently with the

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Section: Methods Of Electric Field Sensing and Modelingmentioning

confidence: 99%

“…In the area of human-vehicle interaction, Togura et al [18] developed a long-range human-body capacitive sensing system prototype with applications to in-vehicle compartment lighting adjustment. The application of electric field sensing for invehicle hand-gesture recognition is explained by Pickering in [19].…”

Section: B Applications Of Electric Field Sensingmentioning

confidence: 99%

Vehicle Occupant Head Position Quantification Using an Array of Capacitive Proximity Sensors

Ziraknejad

Lawrence

Romilly

2015

IEEE Trans. Veh. Technol.

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“…Also, they are not very power efficient solutions. Some examples of capacitive sensors used for proximity detection can be found in Karlsson et al [6] and Togura et al [11].…”

Section: Related Workmentioning

confidence: 99%

Non-invasive monitoring system to detect sitting people

Rosato

Masciadri

Comai

et al. 2018

Proceedings of the 4th EAI International Conference on Smart Objects and Technologies for Social Good

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Determining the position of a body is crucial in the context of the Ambient Assisted Living: knowing if a person is standing, lying down or sitting makes the difference in the process of detecting anomalies due to inactivity. We present a non-invasive monitoring system to recognize if a person is seated using Bluetooth Low Energy technology. The system is composed by devices that can be easily attached to the furniture: a transmitter module that continuously broadcasts Bluetooth signal, and a receiver which collects the RSSi value of the received messages. Finally, a central server evaluates the attenuation of the Bluetooth signal within the 2.4GHz band, correlating it to the presence of a human body in the proximity of the device.

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“…The capacitive mechanism, which changes the measured capacitance of an electrode due to proximity of a grounded object, can be used to sense the proximity of humans and has been achieved on both rigid and flexible substrates [14][15][16][17]. Togura et.al.…”

Section: Introductionmentioning

confidence: 99%

“…Togura et.al. used a commercial sensing module to interact with a person in a car [14]. Two sensing electrodes of 50 mm × 50mm and 100 mm×100 mm are installed in the instrument panel and the ceiling, respectively, achieving a maximum detection distance of 300 mm.…”

Section: Introductionmentioning

confidence: 99%

Dispenser printed capacitive proximity sensor on fabric for applications in the creative industries

Wei

Torah

et al. 2016

Sensors and Actuators A: Physical

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Abstract:This paper reports a planar capacitive proximity sensor fully dispenser printed on a standard polyester woven fabric using conductive ink. Dispenser printing is a new digital printing technique offering the advantages of complete geometric design flexibility and the ability to direct write multilayer devices without requiring bespoke tooling. A dispenser printer is also capable of printing a wide range of ink viscosities encompassing those of inkjet and screen printable inks. Previous research has demonstrated the principle of using proximity sensors for human interaction but none of them are fabricated directly on fabric. In this research, the proximity sensor is dispenser printed directly onto the fabric with an optimised loop electrode design which uses 76 % less conductive ink while still offering 90 % of the detection range when compared with a standard filled electrode design. The loop design also has the highest detection coefficient (maximum detection distance versus the conductive area of the sensor) of 0.23 compared with 0.06 and 0.1 for the investigated filled and spiral designs, respectively. In addition, the ratio of the track width to the width of the entire sensor is investigated showing 1/16 as being the most suitable ratio for the proximity sensor printed on fabric. Proximity sensors with loop widths ranging from 10 mm to 400 mm are evaluated. The maximum detection distance is 400 mm when the largest sensor is used and the linearity of the sensing circuit is 0.79.

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Long-Range Human Body Sensing Modules with Electric Field Sensor

Cited by 6 publications

References 0 publications

Vehicle Occupant Head Position Quantification Using an Array of Capacitive Proximity Sensors

Vehicle Occupant Head Position Quantification Using an Array of Capacitive Proximity Sensors

Non-invasive monitoring system to detect sitting people

Dispenser printed capacitive proximity sensor on fabric for applications in the creative industries

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