Marobhoti mazhinji anowana kubata uye kuona tactile kuburikidza nemotokari nzira, iyo inogona kuve yakawandisa uye yakaoma. Boka reCornell University rakagadzira nzira yekuti robhoti rakapfava kuti rinzwe zvakaripoteredza mukati, nenzira imwecheteyo inoita vanhu.
Boka rinotungamirwa naRobert Shepherd, mubatsiri purofesa wemechini uye aerospace engineering uye mukuru muongorori we Organic Robotics Lab, yakaburitsa bepa rinotsanangura maitiro anotambanudzwa optical waveguides anoita se curvature, elongation uye simba sensors mune yakapfava robhoti ruoko.
Chiremba mudzidzi Huichan Zhao ndiye anotungamira munyori we "Optoelectronically Innervated Soft Prosthetic Hand kuburikidza ne Stretchable Optical Waveguides,” iyo inoratidzwa mukutanga edition yeScience Robotics. Bepa rakabudiswa Dec. 6; vakabatsirawo vaive vadzidzi vezvechiremba Kevin O'Brien naShuo Li, vese veLab yaShepherd.
"Marobhoti mazhinji nhasi ane masensa kunze kwemuviri anoona zvinhu kubva kumusoro," akadaro Zhao. "Masensa edu akabatanidzwa mukati memuviri, saka anogona kunyatsoona masimba ari kufambiswa kuburikidza nehupamhi hwerobhoti, sezvatinoita isu nezvisikwa zvese patinonzwa kurwadziwa, semuenzaniso."
Optical waveguides anga achishandiswa kubva kutanga kwa1970 kune akawanda ekuona mabasa, anosanganisira tactile, chinzvimbo uye acoustic. Kugadzirwa kwekutanga kwaive kwakaoma, asi kuuya pamusoro pemakore makumi maviri ekupedzisira ezvinyorwa zvakapfava uye kudhinda kwe20-D kwakatungamira mukugadzirwa kwema sensors elastomeric anogadzirwa nyore uye akabatanidzwa mune yakapfava robhoti application.
Boka raShepherd rakashandisa nhanho ina-yakapfava lithography process kugadzira musimboti (kuburikidza nechiedza chinopararira), uye cladding (kunze kweiyo waveguide), iyo zvakare inogara iyo LED (light-emitting diode) uye iyo photodiode.
Kunyanya kutsveyama kweruoko rweprosthetic, chiedza chinowedzera kurasika kuburikidza nepakati. Iko kurasikirwa kwechiedza kwakasiyana, sekuonekwa nephotodiode, ndiko kunobvumira prosthesis "kunzwa" nharaunda yayo.
"Kana pasina mwenje wakarasika patakakotama prosthesis, hatingawane chero ruzivo nezve mamiriro e sensor," Shepherd akadaro. "Kuwanda kwekurasikirwa kunoenderana nekuti yakagonya sei."
Boka racho rakashandisa optoelectronic prosthesis yaro kuita mabasa akasiyana siyana, kusanganisira kubata uye kuongorora zvese maumbirwo nemagadzirirwo. Zvakanyanya kukosha, ruoko rwakakwanisa kuongorora matomatisi matatu uye kuona, nekupfava, ndiyo yaive yakaibva.
Zhao akati tekinoroji iyi ine zvakawanda zvingango shandiswa kunze kwema prostheses, kusanganisira mabhobhoti anofemerwa nebio, akaongororwa naShepherd pamwe chete nawo. Mason Peck, purofesa anoshamwaridzana wemakanika uye aerospace engineering, zvekushandisa mukuongorora muchadenga.
"Iyo purojekiti haina mhinduro," Shepherd akadaro, achitaura nezvekubatana naPeck, "asi dai taiva nemasensa, taigona kutarisa munguva chaiyo shanduko yechimiro panguva yekupisa [kuburikidza nemvura electrolysis] uye kugadzira zvirinani actuation sequences kugadzira. inofamba nekukurumidza."
Basa remangwana pane optical waveguides mumarobhoti akapfava anozotarisa pakuwedzera kugona kwekunzwa, muchikamu ne3-D kudhinda kwakaomarara masensor maumbirwo, uye nekubatanidza muchina kudzidza senzira yekubvisa masaini kubva kune yakawedzera nhamba yemasensor. "Izvozvi," Shepherd akadaro, "zvakaoma kuona kuti kubata kunobva kupi."
Iri basa rakatsigirwa nerubatsiro kubva kuAir Force Hofisi yeScientific Research, uye yakashandisa iyo Cornell NanoScale Sayenzi uye Tekinoroji Facility uye Cornell Center for Materials Research, ose ari maviri anotsigirwa neNational Science Foundation.
- Tom Fleischman, Cornell University