PI-based Transmission Power Control for WirelessHART Field Devices**The authors thank CNPq, Capes, Petrobras, and Finep for projects support and funding
| Autor: | Roger W. P. da Silva, Diego Eckhard, Ivan Muller, Carlos Eduardo Pereira, Joao C. Netto, Jean Michel Winter |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
WirelessHART Wireless network business.industry RF power amplifier 020206 networking & telecommunications 02 engineering and technology Energy consumption Control and Systems Engineering Robustness (computer science) Proof of concept 0202 electrical engineering electronic engineering information engineering Electronic engineering Wireless 020201 artificial intelligence & image processing business Power control |
| Zdroj: | IFAC-PapersOnLine. 49:343-348 |
| ISSN: | 2405-8963 |
| Popis: | Wireless networks are gaining space in industrial environments due to the low installation costs and low maintenance. Robustness is also one of the main requirements for these systems to be adopted, and, in this context, WirelessHART (WH), ISA SP100.11a, and WIA-PA protocols met these characteristics. In order to provide low maintenance, these protocols must provide reliable radio links while keeping low power consumption to allow battery powered devices. Unfortunately, the standards of these protocols do not impose any RF power modulation technique, which is a form to increase even more the battery endurance of a wireless field device. Instead, RF power levels are fixed and selected by commissioning, and must allow the longest link per device. In this case, devices in closer ranges waste energy during transmissions, as they could save energy by modulating the RF power. This paper presents a RF power modulation technique that employs a proportional-integral controller and allows reduction of energy consumption while keeping the robustness of RF links. A proof of concept of the power modulation technique is implemented and verified showing good results and proving that the proposed controller is feasible. The proposal has the advantage to be fully compatible with the standard. |
| Databáze: | OpenAIRE |
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