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IQRF platform

Pilot project – opportunity to use IQRF technology

As part of the pilot project, checking an opportunity to use IQRF technology, a group of devices, interacting between each other in the dispersed mesh network, was developed. Such networks, due to the use of packet-oriented transmission of information via hops, offer a large reach – the whole network, quantified as the distance between modules, seeing each other, multiply by the number of the modules on the specific path at low outputs of individual transmitters, which is the crucial parameter in the battery-powered system. Thanks to the self-healing mechanisms, these networks are also resistant, at proper system redundancy, to network damages, both, due to damages / deactivation of modules themselves, and due to the changing conditions, e.g. occurrence of obstacle. During the project, several tens of devices were made, to which TR52DC modules with antennas were connected. The application controllers, connected to TR52DC modules via the series interface, due to the developed software, implemented to the modules (an application performed using IQRF SDK dedicated tools), changed information between each other, and also communicated with the data acquisition concentrator. This project was part of a major project; once the IQRF platform capability has been tested, due to some specific requirements, a decision was taken to use the other technology – XBee.

 General characteristics and design of the system in IQRF technology:

IQRF platform

 

IQRF – a complete technology for wireless connectivity

  • RF bands: world-wide ISM 433 MHz, 868 MHz and 916 MHz
  • Based on transceiver modules with built-in operating system (OS)
  • Fully open functionality depends solely on user-specific application written in C language
  • Packet-oriented communication, max. 64 B per packet
  • Range up to several hundred of meters per hop, up to 240 hops per packet
  • Extra low power consumption: 380 nA standby, 25 µA receiving
  • Low bit rate: 19.2 kb/s. Preliminary: 1.2 kb/s, 57.6 kb/s and 86.2 kb/s
  • Supporting MESH, IQMESH protocol implemented in OS
  • No license fees
  • Very easy to implement
  • Data controlled transceivers(DCTR) enables applications even without programming

More – IQRF.ORG

 


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