Year by year, more wireless technologies are used in automation technology. Users benefit from this as wireless solutions offer a higher degree of mobility and flexibility. Often, one reason for using a wireless system is the fact that this allows costs to be saved.
The automation industry mostly relies on wireless technologies that can be used worldwide. Due to the national frequency regulation, only few frequency bands meet this requirement. The ISM (Industrial Scientific Medical) bands can be used without a licence, but only the 2,4 GHz ISM frequency band is available worldwide. This is why most wireless technologies in automation technology use this band.
There is even more to this band than its worldwide availability and the fact that it can be used free of charge. With a bandwidth of 83 MHz, this frequency band enables the parallel operation of several wireless systems – even if different wireless technologies are used. Other bands, such as the 433 MHz band (bandwidth 1 MHz) or the 868 MHz band (EU only, bandwidth 2 MHz) offer a smaller bandwidth. Thus, there are fewer ways of a coexistence of several wireless systems in these lower frequency bands. However, coexistence is one of the vital properties of wireless technologies as the number of wireless systems constantly increases while the available resources (wireless spectrum) are limited.
However, the conditions for the propogation of electromagnetic waves are better in lower frequency ranges. Therefore, the ranges decrease the higher the frequency becomes. The free space attenuation depends logarithmically on the transmission frequency. This means that if the transmission frequency is halved (e.g. from 868 MHz to 433 MHz), the free space attenuation is reduced by 6 dB for the same distance. With a free space attenuation that is decreased by 6 dB you can achieve double the range with the same transmission power.
In the following, the description of the Trusted Wireless 2.0 technology will refer to well-known wireless technologies of the consumer and IT sector. As nowadays Bluetooth and WLAN are also used in an industrial environment, we would like to especially outline the differences against these technologies. There is also a wireless technology called WirelessHART which has been developed especially for the process industry. This technology will also be described and compared to the others.
The industrial era of wireless telemetry and radio communication Schneider Electric South Africa
Data Acquisition & Telemetry
Today’s advanced wireless telemetry offers a range of benefits that go beyond cost savings, including greater flexibility and mobility, remote monitoring capabilities, and enhanced safety.
Read more...Connecting every transport node RJ Connect
Editor's Choice Data Acquisition & Telemetry
Stockholm's bus system strategically links urban mainline, suburban mainline, non-mainline routes, community service buses and night buses. To acquire and process data from multiple sources and analyse onboard information on their moving buses, Transdev sought a dependable and powerful onboard computer. It teamed up with CatAB, Moxa’s local representative, known for delivering top-notch industrial data communication boards and equipment since 1988.
Read more...Paratus South Africa boosts Tantum IT’s connectivity with Eutelsat
Data Acquisition & Telemetry
Tantum IT is a leading IT service provider specialising in remote IT management, cloud services, and secure data handling for industries in remote and high-demand environments. To overcome its connectivity challenges, Tantum IT chose Paratus, an official distributer of Eutelsat OneWeb’s Low Earth Orbit services, to provide the solution.
Read more...Wireless communication system for remote access to data KROHNE
Data Acquisition & Telemetry
KROHNE has introduced the OPTIBRIDGE 3880 IIoT data logger for remote data services, acquisition and evaluation. It is a fully autonomous battery- or mains- powered wireless communication system for remote access to measurement data.
Read more...New industrial tablet series for non-ex applications Pepperl+Fuchs
Data Acquisition & Telemetry
Pepperl+Fuchs is introducing a rugged tablet series in accordance with MIL-STD-810H. The slim Windows-based devices are available with a 20 or 25 cm display, offering numerous customisation options and an extensive range of accessories.
Read more...New wireless communication system for remote access to measurement data KROHNE
Data Acquisition & Telemetry
KROHNE has introduced the OPTIBRIDGE 3880 IIoT data logger for remote data services, acquisition and evaluation. This is a fully autonomous, battery- or mains-powered wireless communication system for remote access to measurement data, aimed at the water and wastewater industry.
Read more...Comprehensive protection of the network against attacks Phoenix Contact
IT in Manufacturing
In recent years, the generation of data to create ever better transparency and control of production has become a decisive competitive factor. IIoT has also contributed to more manufacturing systems being connected to IT or cloud systems. This places higher demands on access security, which Phoenix Contact meets with the Secure Edge Box.
Read more...Programmable LED indicators Turck Banner Southern Africa
Industrial Wireless Data Acquisition & Telemetry
Turck Banner is expanding its portfolio of LED lights with the robust LED indicators of the K100 series. These units improve workflow and reduce downtime through clearly communicated status information.
Read more...Decoding the world of direct part marks Omron Electronics
Data Acquisition & Telemetry
OMRON has unveiled its latest breakthrough, the V450-H ultra-rugged handheld scanner. Tailored specifically for industrial DPM reading, this innovative device sets new industry standards for durability and performance.
Read more...Green manufacturing energy conservation and emission reduction Dahua Technology South Africa
Data Acquisition & Telemetry
As a world-leading video-centric AIoT solution and service provider, Dahua is committed to improve its sustainable development capabilities and to make continuous efforts in building a greener and safer digital world by developing innovative solutions that can help conserve energy and reduce carbon emission.
printer friendly version