LoRa WAN - Connecting the Internet of Things
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Kent Plummer discusses VPN Solutions' managed private IP networks and highlights the significance of LoRa WAN technology in supporting over 25 billion connected devices by 2020. The document details the advantages of LoRa WAN, including low power consumption, low-cost endpoints, and extensive network coverage for low bandwidth data communications. It also mentions various vendors and the potential for deploying a LoRa gateway on the Gold Coast.
LoRa WAN - Connecting the Internet of Things
- 1. Kent Plummer - VPN Solutions Managed Private IP Networks for Business vpnsolutions.com.au LoRa WAN Gartner forecasts there will be 25 billion connected things globally by 2020 - more than 3 x the number of people on earth today.
- 2. Gold Coast VPN Solutions MPLS Private IP Network Brisbane Head Office IPSec VPN (Backup paths) Direct Connect BGP routing Internet Availability Zone 1 ap-southeast-2a Instances Availability Zone 2 ap-southeast-2b VGW VPC subnet VPC subnet Sydney Melbourne Adelaide Network Interconnect POP Equinix Sydney Instances Brisbane Co-lo Primary Backup BGP routing VPN Solutions Carrier Neutral Managed Networks
- 3. • >25 billion devices by 2020 • Bluetooth & Wifi not suited <100m, high throughput & power consumption • 3G/4G cellular not well suited $ hardware, $ SIM’s/plans, high battery inefficiency, available spectrum. Designed for ~100Mbps and voice. • Endpoints costs need to be low • Must be small for integration into everything • Conserve wireless spectrum – duty cycle policy • Conservative power – run on a battery – ie mA • Support really low bandwidth for Bytes not MB of data • ~$0 network plans The problem?
- 4. LoRa WAN Up to 5km • Private pt-pt Serial write/read • Two way comms • 300bps to 300K data rate • 915Mhz unlicensed ISM (Industry, Science and Medicine) radio band. • ~$30 endpoints • $free communications – no mobile SIM • Low power ie 100mA • Battery or solar powered Raise local alarm, Trigger local event, Log local data Or MQTT to AWS Press button, Water level high, Asset condition reporting. Wifi Internet connectedArduino Uno + Dragino Lora Shield (via serial internally)
- 5. LoRa Technology • Sigfox similar 7yo technology • IEEE 802.15.4g developed by the LoRa alliance • 915Mhz in Australia ISM band – Upstream – 64 channels 125 kHz BW starting at 902.3 MHz – Upstream – 8 channels 500 kHz BW starting at 903.0 MHz – Downstream – 8 channels 500 kHz BW starting at 923.3 • AES128 crypto and unique device keys • Spread-spectrum modulation • Duty cycle policy to conserve spectrum • Data rates 300bps to 300Kbps • Distances up to 5km or 10km • Has a Mac address scheme and retransmit/error correction capability built in. • Built in over the air activation/subscription to LoRa gw
- 8. LoRa Gateways A transparent bridge relaying messages between end-nodes and a central network server in the backend. Talks RF to LoRa End nodes Talks IP to Lora Server - with LoRa MAC payload from End Node to Server 10km per gateway Cost <$2000 The Things Network covered Amsterdam with just 10 gateways @$ 1,200 each Raspberry Pi gw for $200
- 9. LoRa Server Nodes talk directly to the LoRa server via LoRaMAC. The gateway is transparent. The roles of typical LoRa Server: • Gateway monitoring & mgmt • De duplication of data – ie many gw’s will see the same TX • Billing • Security management • Data distribution – ie interface with AWS or directly with app via websocket Vendors : • The Things Network – cloud server or on prem • Loriot - supports direct interface to AWS IoT • Loraserver.io - Open Source