Cov txheej txheem:
- Kauj ruam 1: Txheej txheem cej luam
- Kauj ruam 2: Pre-requisitions
- Kauj Ruam 3: Kev Kho Vajtse Txuas
- Kauj Ruam 4: Cov Cai Txuas Txuas thiab Cov Lus Qhia
- Kauj Ruam 5: Project Video thiab Txheeb Xyuas LTE Cat.M1 Speed
- Kauj ruam 6: Ua tiav
Video: Nws Puas Muaj Peev Xwm Hloov Cov Duab Siv LPWAN-based IoT Devices?: 6 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25
LPWAN sawv cev rau Tsawg Lub Hwjchim Loj Thoob Ntiaj Teb Network thiab nws yog qhov tsim nyog sib txuas lus thev naus laus zis hauv IoT teb. Cov sawv cev thev naus laus zis yog Sigfox, LoRa NB-IoT, thiab LTE Cat. M1. Cov no yog txhua lub zog uas tsis muaj zog ntev kev sib txuas lus thev naus laus zis. Feem ntau, LPWAN muaj cov ntaub ntawv qis vim nws cov yam ntxwv ntawm lub zog qis thiab kev sib txuas lus nyob deb. Hauv cov lus hauv qab no, qhov siab tshaj plaws kis ceev ntawm LPWAN thev naus laus zis yog 12Bytes ~ 375Kbps.
LTE Cat. M1 muaj qhov siab tshaj plaws kis tau tus mob ntau dua li lwm tus, yog li nws tsim nyog rau qhov nruab nrab qhov loj me thiab daim ntawv thov lub sijhawm tiag tiag xws li kev xa duab, kev txheeb xyuas tus lej tseeb thiab kev pabcuam sijhawm tiag tiag. Hauv kab lus no, peb yuav siv LTE Cat. M1 ntawm LPWAN thev naus laus zis los tshuaj xyuas yog tias cov duab tuaj yeem hloov pauv thiab txheeb xyuas qhov tseeb LTE Cat. M1 nrawm.
Kauj ruam 1: Txheej txheem cej luam
Muaj ob txoj hauv kev los siv Woori-net's LTE Cat. M1 modem sab nraud. Ua ntej, koj tuaj yeem tswj hwm tus qauv sab nraud nrog AT hais kom ua los ntawm UART interface. Txoj kev thib ob yog siv ua hom RNDIS. Thaum siv AT cov lus txib, UART interface (Baud Rate: 115200) tau siv, yog li LTE Cat. M1 qhov siab tshaj plaws kis ntawm 375 kbps tsis muaj. Yog li ntawd, kuv xaiv txoj hauv kev thib ob uas siv ua RNDIS hom. Ib qho ntxiv, thaum koj xav siv hom no, koj yuav tsum tau teeb tsa 'RNDISMODE = 1' siv AT hais kom ua.
Los ntawm kev teeb tsa txoj hauv kev no, Raspberry ncuav qab zib tuaj yeem siv tus qauv sab nraud hauv RNDIS hom, uas tso cai rau koj siv LTE Cat. M1 kev sib txuas lus. Kev kho vajtse txuas yuav piav qhia hauv KAUJ RUAM 3.
Kauj ruam 2: Pre-requisitions
2-1. Raspberry Pi
2-2. Woori-Net Sab Nraud modem (Yuav txuas)
2-3. Interface board (Yuav khoom txuas)
2.4. Interface board cable (Yuav txuas)
2.5. Raspberry Pi lub koob yees duab
Kauj Ruam 3: Kev Kho Vajtse Txuas
Yog tias koj teeb tsa RNDIS hom hauv KAUJ RUAM 1, txuas rau Raspberry Pi raws li hauv qab no.
Yog tias tsim kev sib txuas hauv Is Taws Nem, koj tuaj yeem tshawb xyuas qhov cim ntawd raws li qhia hauv qab no.
Kauj Ruam 4: Cov Cai Txuas Txuas thiab Cov Lus Qhia
Raspberry Pi - Cov Neeg Siv Khoom
Python 2.72 version tau teeb tsa hauv Raspberry Pi. Thiab tus qauv sab nrauv siv IPv6, yog li koj yuav tsum hloov tus neeg rau zaub mov IPv4 chaw nyob raws li hauv qab no. Txoj cai hloov pauv no tau sib tham los ntawm SK Telecom thiab Woori-Net.
Luv luv, thaij duab siv Raspberry Pi Lub Koob Yees Duab thiab xa cov ntaub ntawv mus rau tus neeg rau zaub mov ntawm tus IP ntawd.
Thov txheeb xyuas qhov txuas hauv qab rau tag nrho qhov chaws.
PC - Neeg rau zaub mov Source
Tus neeg rau zaub mov uas tau txais daim duab tau tsim nrog pyQT uas yog GUI cov cuab yeej ua haujlwm.
Ib qho kev nce qib tau muab tso rau txhawm rau txheeb xyuas qhov kev hloov pauv thiab thaum nws tau txais tag nrho, koj tuaj yeem tshawb xyuas daim duab.
Tus neeg rau zaub mov TCP sau ua xov.
Peb siv Qhov Teeb Meem-pyqtSlot () ua kom lub ntsej muag tshiab thiab ua tiav.
Txuas:
Kauj Ruam 5: Project Video thiab Txheeb Xyuas LTE Cat. M1 Speed
5-1. Project yees duab
Thov xa mus rau Youtube
Txuas:
5-2. txheeb xyuas LTE Cat. M1 nrawm
Tag nrho 50 qhov kev sim tau ua tiav hauv daim ntawv qhia hauv cov lus hauv qab no. Qhov nruab nrab cov ntaub ntawv tus nqi yog 298.37 bps. Peb lees paub tias peb tuaj yeem xa cov ntaub ntawv txog 80% ntawm LTE Cat. M1 qhov siab tshaj plaws kis tau tus mob.
Kauj ruam 6: Ua tiav
Nrog rau IoT teb tau nthuav dav, thiab kev thov ntau yam ntawm LPWAN thev naus laus zis tau nce ntxiv. Piv txwv li, muaj cov duab xa mus, cov kev pabcuam taug qab lub sijhawm tsis yog xa lossis saib xyuas cov ntaub ntawv ntsuas. Hauv kab lus no, kuv tau tshuaj xyuas tias cov duab tuaj yeem hloov pauv siv LTE Cat. M1 thiab txheeb xyuas qhov tseeb LTE Cat. M1 nrawm. (Thov nco ntsoov tias kev siv yuav txawv ntawm ib lub tebchaws rau ib lub tebchaws thiab LTE Cat. M1 tus qauv tsim khoom.)
Kuv vam tias tsab xov xwm no yuav pab koj kom tau txais txiaj ntsig ntawm kev tsim LTE Cat. M1 cov ntawv thov hauv IoT tshiab.
Yog tias koj xav tau cov phiaj xwm ntxiv, thov mus saib https://www.wiznetian.com/ !!:)
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