RFUnderstanding EnOcean Wireless Technology
Advertisement
This page provides an overview of EnOcean wireless technology, a key player in the world of M2M (Machine-to-Machine) and IoT (Internet of Things). EnOcean stands out as an energy-harvesting wireless technology, achieving high data rates while maintaining low energy consumption. It’s designed to handle multiple devices transmitting simultaneously.
Notably, over 50 manufacturing companies have already developed approximately 200 EnOcean-compliant products. The technology is specified in the International Standard ISO/IEC 14543-3-10.
Here’s a summary of the key features and specifications of EnOcean wireless technology:
| Specification/feature | EnOcean support |
|---|---|
| Frequency range | 868.3 MHz or 315 MHz (worldwide) |
| Radio regulation | R&TTE EN 300220, FCC CFR-47 (part-15) |
| Transmit power | 6dBm typical, at antenna input |
| Receiver sensitivity | -97dBm typical |
| Modulation scheme | ASK |
| Data Rate | 125 Kbyte/Sec |
| Channel Bandwidth | 280 KHz |
| Min. telegram length (ms) | 0.6 |
| Transmit time | 40 ms (typically) for 3 identical telegrams |
| Energy need | Extremely low (including startup) |
| Risk of data collision | Very low |
| Battery-less radio transmitter | Yes |
EnOcean Wireless Technology Basics in M2M and IoT
EnOcean system
The image above illustrates a typical EnOcean system. A key differentiator from other wireless systems is that EnOcean devices don’t require batteries for operation. Wireless sensors utilize motion converters, solar cells, and thermo converters for energy harvesting.
Furthermore, EnOcean efficiently manages energy to transmit information wirelessly using a minimal amount of power.
The EnOcean protocol stack is modular and versatile, allowing for easy integration of customer applications. A typical EnOcean chip includes an energy converter, energy management system, sensor, microcontroller, RF transceiver, and antenna.
