LoRaWAN industrial IoT network. Only one is open source: LoRaWAN

Transcription

1 LoRaWAN industrial IoT network Many technologies are entering the IoT space for Long range low power communications like: NB-IoT, Sig Fox and LoRaWAN Only one is open source: LoRaWAN Presenter: Rune Domsten CO-founder Indesmatech

2 Sensitivity* What is LoRa : a Smart PHY Layer Spread Spectrum modulation scheme, trading data rate against sensitivity. Extremely efficient modem architecture. Increasing the range by 10x or reducing by 10x the output power dbm -125 dbm -100 dbm -90 dbm < 1 kbps 10 kbps 250 kbps 1 Mbps Data rate * Sensitivity is Data rate and BW dependant

3 LoRaWAN defined by LoRa Alliance Geolocation without GPS in ver. 2.0 Roaming options: Public roaming Private networks Sensor connections +15km range Network Operator outdoor Option indoor AES Secure Data / Control AES Secure Payload/Application Data

4 LoRa Alliance 500+ companies

5 LoRaWan - Open spource technology All components and elements can be made be anybody All components and elements can be bought of the shelf at market price The user can re-engineer parts of the system when needed or it makes sense from a business perspective The coverage can be optimized for the actual purpose The infrastructure can be owned by a company, municipality, government or by a private person The life time of the infrastructure is under the owners control. Devices can communicate directly to another device

6 Many sources in all areas

7 Base stations comparison table * = Mostly used Features ifemtocell* Station ibts compact* ibts ISM Bands 868/915 & /868/915 & /915 & /915 & 923 SPN: Small Private Network* 868/915 & /915 & 923 Power supply AC/DC PoE 15W PoE 30W PoE 60W Casing IP31 or IP54 (with connectors) IP67 incl. Mounting kit IP67 incl. Mounting kit IP66 incl. Mounting kit Backhaul WiFi & Ethernet Ethernet & 3G Ethernet & 3G/4G Ethernet & 3G/4G LoRa TX Power 27dBm 27dBm 30dBm 30dBm LoRa radio channels Up to 64 Geolocation Real time radio scanning Diversity Capacity > msg /day > msg /day 1,4M msg /day >Up to 5,6M msg/day Use cases Smart-Building & Indoor densification Smart-Farming, Metering & Industry Asset tracking, Densification, Deep indoor & Dense urban Smart cities Asset tracking, Densification, Deep indoor & Dense urban, Smart cities 7

8 Gateways in Aarhus and Copenhagen Receives data distance 100Km

9 Redundant coverage in Horsens region

10 What does a gateway cover

11 Deep - Indoor range test at Sønderborg Hospital Entrance Entrance -1-1 Entrance Gateway: Kerlink Wirnet

12 Strain Monitor and control examples Temp/CO2/Humidity /Sun/Rain etc Tree health Tamper detection Groundwater level Sour level Snow level Flooding Moist Waste control

13 The intelligent Thermos - Prevas

14 The LoRaWan Rat and mouse trap

15 Up-link Capacity Up-link capacity from device to server: 16 radio channels in 868 MHz band - 6 spreading factors on each channel SF7-SF12 ( speed and range) - 5,6kbit/s 290 bits/s All at the same time - 96 transmission channels - SF7 equals transmission at 11 kbit/s or 5,6 kbit/s ( calculation with 5,6 kbit/s) bytes payload in SF 7 time in air 350 ms 1% duty cycle is 35 sec between transmissions messages pr day - 11 bytes payload in SF 7 time in air 35ms 1% duty cycle er 3,5 sec between transmissions approx messages pr day - Gateways are working in a mesh all gateways receives all data this make the it work efficiently. - SF12 bit rate is 290 bit/s approx 20x slower.

16 Down link capacity From server via gateways to devices: Maximun capacity in one gateway at 10% duty cycle and SF kbit/s at 10% duty cycle is 560 bit/s equals 4 Mbyte/day More gateways equals more capacity- the server allocates the capacity Class C and multicast allows effectively more data in practic

17 Multicast to groups of devices Multicast to groups of devices. Devices must be in class C to listen for multicast Multicasts is always in SF12 for longest range 290 bit/s Unlimited number of multicast groups Can be used for street light controll. Can be used for emergency activation Can be used for firmware update matech.com

18 Firmware update of devices Firmware update to multiple devices in a group FOTA ( Firmware Over The Air ) - Build in intelligent compression and error correction - Data sent in a matrix package loss regereration - Limited overhead for transmissions

19 Latency in a LoRaWAN systems Minimum latency is determined by LoRa airtime and the protocol that has open Rx slots 2 sec after transmission to the server. This give a 2-3 sec. turnaround time in class A A device running in Class C is always listening. This means airtime is always setting the limit. With class C devices Lower latency than 2 sec can be expected. This means LoRaWAN can be used i many control loops if the network has the right capacity matech.com

20 LoRaWan works at high speed Many radio systems are very sensitive towards physical speed. LoRaWAN devices can fly, drive in a car move with hundreds of km/h - What good does a tracker do if it does not work at normal speeds - Like car trackers - Bird trackers - Stolen goods - Motor Bike trackers

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22 Deployment of LoRaWAN in smart citys Calculation when using Kerlink ibts Compact outdoor gateways, with and without Geolocation: Urban area: Country side: Range approx. 2-5 km Areal coverage per gateway: approx 2*2*pi=12km2. Gateway overlap factor min. 4 with Geolocation Gateway overlap factor min. 2 without Geolocation Range approx. 5-15km Areal coverage per gateway: approx 10*10*pi= 300 km2 Gateway overlap factor min. 4 with Geolocation Gateway overlap factor min. 2 without Geolocation

23 More Info about LoRaWAN

24 Metering examples

25 Light examples

26 Indoor monitor and control Fire alarm Temp, humidity Tamper sense Presence sense Various pushbuttons Sound pressure sense

27 Tracking/alarm examples Pet Tracking Alarm Button

28 Other sensors 80 different sensor probes can be attached. Pressure Analyzer I/O functions