Perception of Delay in Computer Input Devices Establishing a Baseline for Signal Processing of Motion Sensor Systems

New computer input devices in healthcare applications using small embedded sensors need firmware filters to run smoothly and to provide a better user experience. Therefore, it has to be investigated how much delay can be tolerated for signal processing before the users perceive a delay when using a computer input device. This paper is aimed to find out a threshold of unperceived delay by performing user tests with 25 participants. A communication retarder was used to create delays from 0 to 100 ms between a receiving computer and three different USB-connected computer input devices. A wired mouse, a wifi mouse and a head-mounted mouse were used as input devices. The results of the user tests show that delays up to 50ms could be tolerated and are not perceived as delay, or depending on the used device still perceived as acceptable.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
Author keywords Computer mouse; Delay; Embedded systems; Healthcare; Perception; USB Indexed keywords Engineering controlled terms: Embedded systems; Firmware; Health care; Internet of things; Knobs; Mammals; Medical computing; Sensory perception Computer input devices; Computer mouse; Delay; Embedded sensors; Health care application; Input devices; Motion sensors; User experience Engineering main heading: Signal processing

Kade, DanielMälardalens högskola,Inbyggda system,Motion Control i Västerås AB, Västerås, Sweden(Swepub:mdh)dke01 (författare)
Gerdtman, ChristerMotion Control i Västerås AB, Västerås, Sweden (författare)
Lindell, RikardMälardalens högskola,Inbyggda system(Swepub:mdh)rll01 (författare)
Ozcan, OguzhanArçelik Research Center for Creative Industries, Koç University, Rumelifeneri, Sarıyer, İstanbul, Turkey (författare)
Lindén, MariaMälardalens högskola,Inbyggda system(Swepub:mdh)mln04 (författare)
Mälardalens högskolaInbyggda system (creator_code:org_t)

Ingår i:The 3rd EAI International Conference on IoT Technologies for HealthCare HealthyIoT'16Västeraås, Sweden : Springer International Publishing, s. 107-112

Av författaren/redakt...: Du, Jiaying; Kade, Daniel; Gerdtman, Christ ...; Lindell, Rikard; Ozcan, Oguzhan; Lindén, Maria

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