Wireless Technology for Process Industries (WirelessHART)

Even though millions of Highway Addressable Remote Transducer (HART) devices are installed worldwide, in most cases the valuable information they can provide is stranded in the devices. An estimated 85% of all installed HART devices are not being accessed to deliver device diagnostics information with only the Process Variable data communicated via the 4-20mA analog signal. This is often due to the cost and the difficulty of accessing the HART information.

A robust technology that is simple to implement, enables users to quickly and easily gain the benefits of wireless technology while maintaining compatibility with existing HART devices called WirelessHART is introduced. This technology allows users to access the vast amount of unused information stranded in these installed HART smart devices—85% of the installed HART devices. It also provides a simple, reliable and secure way to deploy new points of measurement and control without the wiring costs. WirelessHART employs robust security measures to protect the network and secure the data at all times. These measures include the latest security techniques to provide the highest levels of protection available.

Industrial facilities with dense infrastructures, frequent movement of large equipment, changing conditions, or numerous sources of radio-frequency and electromagnetic interference may have communication challenges. WirelessHART includes several features to provide built-in 99.9% end-to-end reliability in all industrial environments.

In this presentation, Prof. Lu explains in a presentation some challenges and the reason for this technology.