Big Data through small messages with Sigfox
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The document discusses Sigfox, a company that has developed a radio protocol for IoT that focuses on energy efficiency, long-range communication, and minimal cost. Key features include low power consumption, unique device security, and the ability to handle small messages for data transmission. With an increasing number of devices connected to its network, Sigfox anticipates significant growth in IoT device registrations by 2025.
Big Data through small messages with Sigfox
- 1. Big data through small messages IOT & BIG DATA MEET UP - 2016.04.21
- 3. About Sigfox Sigfox is not selling chips Sigfox is not building connected solutions Sigfox has invented a radio protocol Sigfox operates a global network
- 5. Energy efficiency The Sigfox protocol has been designed to maximise energy efficiency Tx: ~20-35 mA during a few seconds (25mW ; 14dB) Key factor: idle consumption (unconnected 99.x% of the time) Idle consumption: a few µA
- 6. Out of the box No configuration, no pairing, no signalisation The network is serving the devices, not the other way round A message is picked up by several base stations ; validation & reduplication are handled by the network
- 7. Very Long Range Best case scenario +100km between transmitter & receiver (base station) Real life A few kms (city) to tens of kms (countryside), depending on the topography
- 8. Outdoor & Indoor Sigfox works well indoor Of course, you need to consider signal attenuation (~20dB)
- 9. Two-way communication Devices can receive updates sent from your application server Each communication is instigated by the device
- 10. Security Each message is signed with a key unique to the device Messages can be encrypted or scrambled No keys exchanged over the network, no handshake Security is an ever ongoing effort
- 11. Radio properties Great tolerance to interferors Jamming resistant Interception is hard: UNB & frequency diversity
- 12. Jammers
- 13. Interferors
- 14. Low cost of communication Small subscription fees Short SW development cycle Low cost HW components
- 15. Small messages Useful payload: 12 bytes Up to 140 times each day 100 bits/s
- 16. Payload examples GPS coordinates (lat x lng) : 6 bytes Temperature: 2 bytes State reporting : 1 byte Heartbeat, update request : 0 byte And … who needs full bytes when 5 bits are enough ?
- 17. Payload examples A (int): 17568 —> 0100010010100000 B (0-32): 17 —> 010001 C (state): 3 —> 10 Frame: 01000100 10100000 01000110 Frame: 0x44 0xA0 0x46 AT$SF=44A046
- 18. More ! 816b1954 | 10000001 01101011 00011001 01010100 10000001 01101011 00011001 01010100 Active mode (Temp) 10000001 01101011 00011001 01010100 Temp. MSB & LSB 10000001 01101011 00011001 01010100 Humidity x2 Temp : 0110011001 = 409 . (409-200) / 8 = 26.125°C Humidity: 01010100 = 84. 84/2 = 42%
- 19. Big Data with 12 bytes SERIOUSLY ?
- 20. Small messages … But a lot of them
- 21. Figures 7 million devices currently registered on the Sigfox network 2025 : estimates ranging from 25 to 50 billion IoT devices
- 23. Why ? Network Operation & Predicted Maintenance New services
- 24. Example Monitoring payload size distribution over time
- 25. Current
- 26. Trend
- 27. We’re hiring Looking for Senior Data Scientist to join our Paris team Get in touch if interested :)
- 28. Thank you ! Nicolas Lesconnec nicolas.lesconnec@sigfox.com twitter: @nlesconnec Q&A time :)