PiEEG chigadziro chemuverengi anodhura asi akarurama wehuropi biosignals
Ildar Rakhmatulin, muongorori paImperial College kuUK, akagadzira mudziyo , que inoshandura Raspberry Pi kuita uropi-kombuta interface
Mudziyo uyu wakafona PiEEG, imwe module yekuwedzera iyo inobatanidza neRaspberry Pi. Kufanana nemamwe magetsi emagetsi (EEG), electromyography (EMG) uye electrocardiography (ECG) zvishandiso, PiEEG yaizokwanisa kuyera zviratidzo zvemagetsi kubva muuropi uye kuwedzera kududzira izvo zvakagamuchirwa.
Maererano naRakhmatulin, chirongwa ichi chakatangwa nekuti akaona kuti kufarira neuroscience yakawedzera nekufamba kwemakore. Pakutanga, Rakhmatulin akagadzira diki inotakurika brain-computer interface. Zvinoenderana netsanangudzo yakaitwa nemuongorori, iyi compact EEG midziyo yaive nedenderedzwa chimiro uye radius ye25 mm chete yakabvumira kushandiswa kwemazuva ese siku nesikati.
ari data yakaunganidzwa nemudziyo yaifanira kutumirwa kune yega server uchishandisa TCP-IP protocol, inobvumira kushanda kusina wireless uye mararamiro akanaka ekufambisa kumushandisi. Iyi modhi yekutanga zvakare yaive neyakavakirwa-mukati ruzha kudzvinyirira kugona kuvandudza iko kurongeka neruzha rwekupinza rwerusingasviki 0,35 μV.
mushure mekugadzira, mutengo wakakwana weiyi modhi yekutanga yaive madhora mazana matatu nemakumi mashanu pamakumi maviri nemana emagetsi. Asi kushomeka kwechip kwakaitika pakati pa2020 na2021 kwakawedzera mutengo wechishandiso zvakanyanya. Kuti arege kusiya purojekiti yake, muongorori akafunga kuvhura yechipiri vhezheni yehuropi-kombuta interface, asi panguva ino zvichibva paRaspberry Pi, iyo yakabvumira kushanda pasina waya uye yakadzikama yekufamba kwemushandisi.
Sarudzo yeRaspberry Pi yakaitwa nekuti, maererano naRakhmatulin, ndiyo inonyanya kufarirwa imwe-bhodhi komputa pamusika uye iri nyore nzira yekutanga kutora matanho ako ekutanga neuroscience. Kune iyi yechipiri iteration, muongorori anotsanangura kuti nhovo inogona kuwanikwa uchishandisa Raspberry Pi 3 kana 4, iyo inodhura isingasviki $100. Naizvozvo, zvakachipa uye zviri nyore kuchengetedza.
Yakasanganiswa neplugin, PiEEG inodhura pakati pemadhora mazana maviri nemakumi mashanu nemazana matatu nemakumi mashanu neanotevera maficha:
- Inoenderana neRaspberry Pi 3 kana 4
- 8 chiteshi chekubatanidza ma electrode akanyorova kana akaoma
- Kufambiswa kwedata kuburikidza neSPI protocol ine frequency ye250 SPS kusvika 16 kSPS uye resolution ye24 bits pachiteshi.
- Kubudirira kwechiratidzo: 1, 2, 4, 6, 8, 12, 24
- Kugona kuyera impedance
- CMRR Yakajairwa Modhi yekuramba Ratio: 120
- Ruzha rwemukati: 0,4 μV
- Ruzha rwekunze: 0,8 μV
- Chiratidzo kune Noise Ratio (SNR): 130dB
- LED yesimba chiratidzo uye ADS1299 yekubatanidza chiratidzo
- 3 mapini emahara ekubatanidza zvinhu zvekunze (pasi uye chiteshi Raspberry Pi)
- Iyo 33 Raspberry Pi GPIO pini inogona kushandiswa kune akasiyana mabasa, sekubatanidza ekunze zvishandiso.
- Easy programming ine inopihwa yakavhurika sosi software yekuverenga uye kugadzirisa data muPython, C uye C ++
Kune vanoda kuiwana. mushandirapamwe wekupa vanhu mari nguva pfupi yadarika wakatangwa. Iyo 4 chiteshi vhezheni yePiEEG imadhora mazana maviri nemakumi mashanu uye iyo 250 chiteshi vhezheni imadhora mazana matatu nemakumi mashanu.
Rakhmatulin nevaaishanda navo vakaburitsawo bepa rairatidza kushanda kwaro: Vakakwanisa kudzora mbeva yekutambisa nekubwaira.
"Asi mukana wacho wakakura uye mudziyo unogona kushandiswa mumaindasitiri mazhinji akasiyana, zvichienderana nezvido uye kugona kwemushandisi," akanyora kudaro.
Muchokwadi, Rakhmatulin anoshuma, Zviratidzo zvePiEEG zvinogona kushandiswa, semuenzaniso, kune smart home control, mitambo, marobhoti, virtual kiibhodhi kuisa, kana kunyange DIY polygraph kuyedza. Chishandiso ichi "chinogonawo kushandiswa nevanofarira kudzidza muchina kugadzira mapurojekiti ekudzora marobhoti nemakumbo emuchina ane simba rekufunga, kudzora kurara, kudzora kufungisisa, kana se detector inofamba, nhema detector, uye zvimwe zvakawanda," Rakhmatulin anoti.
Mashoko akanaka neaya marudzi emapurojekiti akaderera ndeokuti vaigona kudzidza zvakawanda pamusoro peuropi mumakore gumi anotevera kupfuura zvatakadzidza mumakore 10 apfuura. Dambudziko zvino, zvisinei, kungava kuwana vanhu vanobvuma kuti chero munhu anogona. batanidza kuuropi hwako. Asi mukuwedzera, zvinetso zvenyama hazvigoni kubviswa. Muchokwadi, maelectrodes anonzi anopera nekukurumidza nekufamba kwenguva, izvo zvinogona kuwedzera mutengo wekushandisa mudziyo. Uyezve, zvinodikanwa kutsvaga nzira yekuchengetedza ma electrode aya munzvimbo kwenguva yakareba, izvo zvisiri nyore panguva yekuedza.
Asi nechekare nekugona kuverenga zvakachipa masaini ehuropi uye kuita mabasa anoenderana neaya masaini, gakava rinopokana pamusoro pekuchengeta ndangariro dzevanhu pamudziyo wekuchengetera riri kutangazve.
mabviro: https://arxiv.org