The IoT-Bus is a fieldbus with IPv6 support and an integrated security concept. It combines the advantages of native internet protocol support with the advantages of a fieldbus in terms of range, reliability, robustness and low latency.
This technology is based on an adaptation of the communication standard IEEE 802.15.4, which is the de facto standard for Wireless Personal Area Networks (WPAN) and sensor networks, thus allowing the use of these wireline logs. The concept envisages a communication on 2- or 4-wire lines. The 4-wire solution also enables the power supply for communication of the communication nodes via the bus.
The use and adaptation of IEEE Std. 802.15.4 the IoT-Bus allows a medium-border communication channel. For 802.15.4 nodes are realized without breaking protocol a comprehensive communication network with both wired IoT-Bus and wireless IEEE Std. Using a special access method allows the IoT-Bus a real-time communication. The serial interface uses the standard EIA-485 (RS-485), but can also be adapted to other interfaces.
The Structure of the System
The system consists of up to three different physical communication paths, the actual IoT-Bus (1) based on the IEEE Std 802.15.4 with customized bus access method defined by IEEE 802.15.4 radio nodes (2) can be extended and a connection of the internet (3) on the IoT-Bus router.