PIR 1: What information service would be most compatible for commands and simple sensor values?
- SIR 1.1: Is LoRa compatible with such data transmissions?
- SIR 1.2: What is the most suitable of NB-IoT and LTE-M?
PIR 2: What electronics board would be suitable and affordable for such task?
- SIR 2.1: What board would have the least power consumption?
- SIR 2.2: What board would be easier to program?
- SIR 2.3: What board would have a
PIR 3: What protocol would be the easiest to program?
- SIR 3.1: Is MQTT compatible with Arduino?
- SIR 3.2:
PIR 4: What is the best way to power the devices?
- SIR 4.1: Is it possible to power the device with no connection to the surface?
What kind of Service
- LoRa
- Telia LTE-M
- Telia NB-IoT
- Telenor
What board
- Power consumption
- Sensors
- Transmitting data
What protocol
- MQTT
Information requiremens:
LoRa
For a LoRa unit to connect to the internet it requires a gateway. The closest gateway to Ålesund is currently in Molde.
The price of a new gateway would probably be in the vicinity of 1100 kr. The range of the LoRa gateway will be dependent on positioning, line of sight, antenna performance and bitrate.
Key assumptions check
| Nr | Assumption | Caveation | Usages |
|---|---|---|---|
| 1 | Price is a limiting factor. | Partially caveated | |
| 2 | The price of NB-IoT is lower due to lower bit rate | Not caveated |
Assessment
| Nr | Fact | Comment | Assumption | Assessment | Conclusion |
|---|---|---|---|---|---|
| 1 | The range of the LoRa gateway will be dependent on positioning, line of sight, antenna performance and bitrate. | There are no LoRa units in the vicinity of Ålesund. | It is likely that the LoRa device will have an estimated range of 7 kilometers. This means that there has to be a LoRa device within 7 kilometers for each measuring device.
| ||
| 2 |
| Telia network is stationary and widespread. | The price of NB-IoT is lower due to lower bit rate. | The NB-IoT is highly likely the better choice from Telia. Telia NB-IoT is likely more reliable than LoRa. | Row: 1, 2 Answers to: PIR 1, SIR 1.1, SIR 1.2 Conclusion: NB-IoT seems to be the general better solution due to reliability. LoRa could however be a good decision if the range is sufficient. |
| 3 | |||||
| 4 |
