accelerometer

Ichi ndichifukwa chake ma accelerometers ndi mabwenzi abwino a gyroscopes: chifukwa amatha kuzindikira maumboni abwino kwambiri "otsika" (osachepera, pamene ali mu mphamvu yokoka ya dziko lapansi).

Chabwino, kulankhula zambiri. Kuchokera mphindi imodzi kupita ku imzake, imalandira mphamvu yokoka, kuthamanga kwa mzere, mphamvu ya centrifugal yopangidwa ndi kuzungulira, kugwedezeka, phokoso komanso, ndithudi, zolakwika za sensa.

Chifukwa chake, ngakhale kuchuluka kwa zitsanzo ndi kulondola kwabwino kwa masensa a MEMS (nthawi zambiri abwino ngati ma gyroscopes), data ya accelerometer ikadali imodzi mwazinthu zaphokoso komanso zosadalirika. Yalandira "zizindikiro" zingapo zomwe ziyenera kuganiziridwa. Koma ndiko kukhudzika kwa ma siginecha osiyanasiyanawa komwe kumapangitsa kuti ikhale yapadziko lonse lapansi - imatha kumva chilichonse.

Pali njira ziwiri zophatikizira mathamangitsidwe kuchokera pamalo omwe tikufuna kudziwa, chifukwa chake tiyenera kufotokozera mwachidule ma deltas ndi mizere yolakwika, kuchokera pakuthamangitsidwa koyezetsa kupita ku liwiro loyerekeza, ndiyeno tiyenera kuchitanso kuti tipeze zomwe tikuyerekeza. udindo. Zolakwa zikuchulukirachulukira.

Ichi ndichifukwa chake GPS ndi bwenzi la accelerometer: chifukwa "idzasiya" zolakwika zomwe zikuchulukira nthawi ndi nthawi, monga momwe accelerometer imatsitsa pang'onopang'ono cholakwika cha azimuth cha gyroscope.

magnetometer

Kampasi yabwino siyenera kunyalanyazidwa. Komabe, monga accelerometer, nthawi zambiri imagwiritsidwa ntchito ngati njira yowongolera kwa nthawi yayitali ya gyro drift. Kudziwa kumene kuli m’mwamba n’kothandiza kwambiri kuposa kudziŵa kumene kuli maginito akumpoto.

Nthawi zambiri amaphatikizidwa ndi olandila GPS, chifukwa amalimbananso ndi zofooka zazikulu za wina ndi mnzake, koma amagwirizana kwambiri pazinthu zina. Imodzi imapereka malo okhwima kwambiri, ndipo ina imapereka njira yabwino kwambiri.