Cov cuab yeej siv hauv tsev tam sim no muaj xws li ultrasonic technology, infrared technology, ultra-wideband (UWB), xov tooj cua zaus txheeb xyuas (RFID), Zig-Bee, Wlan, kho qhov muag nrhiav thiab qhov chaw, mobile kev sib txuas lus positioning, Bluetooth positioning, thiab geomagnetic positioning.
Ultrasound positioning
Ultrasound positioning qhov tseeb tuaj yeem ncav cuag centimeters, tab sis ultrasonic attenuation tseem ceeb, cuam tshuam rau qhov zoo ntawm qhov chaw.
Infrared positioning
Infrared positioning Qhov tseeb tuaj yeem ncav cuag 5 ~ 10 m. Txawm li cas los xij, lub teeb infrared tau yooj yim thaiv los ntawm cov khoom lossis phab ntsa hauv cov txheej txheem sib kis, thiab qhov sib kis tau luv luv. Qhov chaw ua haujlwm muaj qhov nyuaj siab thiab qhov ua tau zoo thiab kev ua tau zoo tseem txawv ntawm lwm cov thev naus laus zis.
UWB positioning
UWB positioning, qhov tseeb yog feem ntau tsis ntau tshaj 15 cm. Txawm li cas los xij, nws tseem tsis tau paub tab. Qhov teeb meem tseem ceeb yog tias UWB qhov system nyob hauv siab bandwidth thiab tuaj yeem cuam tshuam nrog lwm cov kev sib txuas lus wireless uas twb muaj lawm.
RFID qhov chaw nyob sab hauv tsev
RFID nyob sab hauv tsev qhov tseeb yog 1 txog 3 m. Qhov tsis zoo yog: qhov kev txheeb xyuas qhov ntim yog me me, yuav tsum muaj cov cuab yeej qhia tshwj xeeb, lub luag haujlwm ntawm kev nyob deb, tsis muaj peev xwm sib txuas lus, thiab tsis yooj yim rau kev koom ua ke rau lwm lub tshuab.
Zigbee positioning
Zigbee thev naus laus zis tso qhov tseeb tuaj yeem ncav cuag meters. Vim lub complex nyob sab hauv tsev, nws yog ib qho nyuaj heev los tsim kom tau ib tug raug propagation qauv. Yog li ntawd, qhov tseeb qhov chaw ntawm ZigBee positioning technology yog heev txwv.
WLAN positioning
WLAN qhov tseeb qhov tseeb tuaj yeem ncav cuag 5 txog 10 m. WiFi qhov chaw qhov system muaj qhov tsis zoo xws li kev teeb tsa siab thiab kev siv hluav taws xob loj, uas cuam tshuam rau kev lag luam ntawm sab hauv tsev siv tshuab. Qhov dav dav qhov tseeb ntawm lub teeb nrhiav qhov chaw yog 2 mus rau 5 m. Txawm li cas los xij, vim nws tus yam ntxwv, kom ua tiav high-precision optical positioning technology, nws yuav tsum tau nruab nrog optical sensors, thiab lub sensor directivity yog siab dua. Kev sib txuas lus ntawm lub xov tooj ntawm tes qhov tseeb tsis yog siab, thiab nws qhov tseeb yog nyob ntawm kev faib tawm ntawm cov chaw nres tsheb mobile thiab qhov loj ntawm kev pab them nqi.
Qhov tseeb positioning ntawm geomagnetic positioning yog zoo tshaj 30 m. Sib nqus sensors yog qhov tseem ceeb ntawm kev txiav txim siab geomagnetic navigation thiab positioning. Qhov tseeb ib puag ncig magnetic teb siv daim duab qhia chaw thiab txhim khu kev qha cov ntaub ntawv sib nqus sib txuam algorithms kuj tseem ceeb heev. Tus nqi siab ntawm high-precision geomagnetic sensors cuam tshuam qhov nrov ntawm geomagnetic positioning.
Bluetooth positioning
Bluetooth positioning thev naus laus zis yog qhov tsim nyog rau kev ntsuas qhov luv luv thiab siv hluav taws xob tsawg. Nws yog tsuas yog siv rau hauv qhov chaw me me nrog qhov tseeb ntawm 1 txog 3 m, thiab muaj kev ruaj ntseg thiab kev ntseeg siab. Cov khoom siv Bluetooth yog qhov me me thiab yooj yim rau kev koom ua ke rau hauv PDAs, PCs, thiab cov xov tooj ntawm tes, yog li lawv tau nrov nrov. Rau cov neeg siv khoom uas tau koom ua ke Bluetooth-enabled mobile pab kiag li lawm, tsuav yog Bluetooth muaj nuj nqi ntawm lub cuab yeej enabled, lub Bluetooth nyob rau hauv tsev qhov chaw yuav txiav txim qhov chaw. Thaum siv cov thev naus laus zis no rau qhov chaw nyob hauv tsev luv luv, nws yooj yim rau kev tshawb pom cov cuab yeej thiab cov teeb liab kis tau tus mob tsis cuam tshuam los ntawm kab-ntawm-pom. Piv nrog rau ob peb lwm txoj hauv kev uas nrov nyob sab hauv tsev, siv lub zog qis Bluetooth 4. 0 Tus qauv kev tso chaw sab hauv tsev muaj cov yam ntxwv ntawm tus nqi qis, kev xa tawm yooj yim, cov lus teb ceev ceev thiab lwm yam kev ua haujlwm, ntxiv rau cov chaw tsim khoom txawb rau Bluetooth 4. 0 Cov. kev txhawb nqa ntawm tus qauv specification tau coj mus rau txoj kev loj hlob zoo dua.
Txij li thaum tshaj tawm ntawm Bluetooth 1 tus qauv, muaj ntau txoj hauv kev raws li Bluetooth thev naus laus zis rau kev tso chaw sab hauv tsev, suav nrog cov txheej txheem raws li kev tshawb pom ntau yam, cov txheej txheem raws li cov qauv kev nthuav tawm, thiab cov txheej txheem raws li daim teb ntiv tes sib piv. . Cov txheej txheem raws li kev tshawb nrhiav ntau yam muaj qhov tsis txaus ntseeg qhov tseeb thiab qhov chaw qhov tseeb yog 5 ~ 10 m, thiab qhov chaw precision yog li 3 m raws li cov qauv kev nthuav tawm, thiab qhov chaw raug raws li qhov kev siv cov ntiv tes sib txuam yog 2 ~ 3 m.
Beacon positioning
iBeacons yog raws li Bluetooth 4.0 BLE (Bluetooth Tsawg Zog). Nrog kev tso tawm ntawm BLE thev naus laus zis hauv Bluetooth 4.0 thiab Apple qhov muaj zog derivation, iBeacons daim ntawv thov tau dhau los ua cov thev naus laus zis kub tshaj plaws. Niaj hnub no, ntau lub cuab yeej ntse tau pib txhawb nqa daim ntawv thov BLE, tshwj xeeb tshaj yog rau cov xov tooj tshiab uas tau teev tseg, thiab BLE tau dhau los ua tus qauv teeb tsa. Yog li ntawd, kev siv BLE thev naus laus zis rau kev tso chaw sab hauv tsev ntawm cov xov tooj ntawm tes tau dhau los ua qhov chaw kub rau cov ntawv thov LBS sab hauv. Nyob rau hauv txoj kev muab tso rau Bluetooth, txoj kev raws li lub zog ntawm lub zog ntiv tes sib piv muaj qhov tseeb tshaj plaws thiab tau siv dav.
