Projekt LoRaWAN: Unterschied zwischen den Versionen
Aus Opennet
Thm (Diskussion | Beiträge) (→Protokoll) |
Thm (Diskussion | Beiträge) (→Mobilgeräte) |
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* http://www.dragino.com/products/lora/item/117-lg01-p.html | * http://www.dragino.com/products/lora/item/117-lg01-p.html | ||
− | === | + | === Endgeräte === |
+ | * Anwendungen vor allem Sensordaten erfassen, Fernsteuern, Überwachen | ||
+ | * Diverse "Shields" für Ardoino und Co. | ||
+ | ** https://www.amazon.de/s/ref=nb_sb_noss?__mk_de_DE=ÅMÅŽÕÑ&url=search-alias%3Daps&field-keywords=lora+shield&rh=i%3Aaps%2Ck%3Alora+shield | ||
+ | ** http://wiki.dragino.com/index.php?title=Lora_Shield | ||
+ | ** https://stefan.schultheis.at/2018/lora-aprs-gw-raspberry-pi-zero/ | ||
+ | |||
+ | * Raspberry | ||
+ | ** https://www.elektormagazine.de/news/lorawan-preiswert-und-einfach-mit-raspberry-pi-und-dragino | ||
+ | |||
+ | * Sonstiges | ||
+ | ** https://www.elektormagazine.de/news/review-einstieg-ins-iot-mit-lora-produkten-von-dragino | ||
+ | |||
+ | === Server-Software === | ||
= Plan = | = Plan = |
Version vom 14. März 2018, 11:16 Uhr
Inhaltsverzeichnis |
Knowledge LoRa / LoRa-WAN
Einsatzmöglichkeiten
- Low Energy, low throughput, high bandwidth, long range Übertragung
- Beispiel Sensordaten
- Über LoRa-WAN auch Anbindung ans Internet, im Idealfall überall, dazu Gateways notwendig
- https://de.wikipedia.org/wiki/The_Things_Network stellt solche Gateways als Community bereit
- https://www.youtube.com/watch?v=3cIGzwH-NI8
Protokoll
- Layer 1 - Chirp Spread Spectrum
- https://de.wikipedia.org/wiki/Chirp_Spread_Spectrum
- In Europa Frequenzen 433 MHz (ISM-Band Region 1) und 868 MHz (SRD-Band Europa)
- Reichweiten von 2 km (Stadtgebiet) über 15 km (Vororte) bis zu 40 km (ländliche Gebiete)
- Layer 2
- Bi-directional end-devices (Class A): End-devices of Class A allow for biirectional communications whereby each end-device’s uplink transmission is followed by two short downlink receive windows. The transmission slot scheduled by the end-device is based on its own communication needs with a small variation based on a random time basis (ALOHA-type of protocol). This Class A operation is the lowest power end-device system for applications that only require downlink communication from the server shortly after the end-device has sent an uplink transmission. Downlink communications from the server at any other time will have to wait until the next scheduled uplink.
- Bi-directional end-devices with scheduled receive slots (Class B): End-devices of Class B allow for more receive slots. In addition to the Class A random receive windows, Class B devices open extra receive windows at scheduled times. In order for the End-device to open its receive window at the scheduled time, it receives a time synchronized Beacon from the gateway.
- Bi-directional end-devices with maximal receive slots (Class C): End-devices of Class C have nearly continuously open receive windows, only closed when transmitting. Class C end-device will use more power to operate than Class A or Class B but they offer the lowest latency for server to end-device communication.
- Layer 3
- https://www.lora-alliance.org/for-developers
- LoRa-WAN ist eine Möglichkeit, ein Low Power Wide Area Network zu errichten
Hardware
Gateways
Endgeräte
- Anwendungen vor allem Sensordaten erfassen, Fernsteuern, Überwachen
- Diverse "Shields" für Ardoino und Co.
- Raspberry
- Sonstiges
Server-Software
Plan
Standorte
Bei 2km Reichweite in Städten würden wir mit den ersten drei Gateways schon die komplette Innenstadt abdecken.