Mi241 -Customer Story
The Brazilian mining company Vale SA is the largest producer of iron ore and nickel in the world with mining activities in 11 countries. Just in Brazil, the conglomerate runs mining operations in many sites spread across 14 different Brazilian states. One of those states is Minas Gerais, located in the southeastern corner of the country, where the company conducts mining activities in several sites. One of these sites is the open-pit iron ore mining complex called Itabira, which has been active since 1976. Vale’s R&D branch (ITV) contacted RESEIWE because the innovation team of the multinational had the desire of testing our ReWiLinkTM technology. The decision to evaluate our system was based on the difficulties that the wireless radio system at Itabira was causing due to its limited range and the many dropouts that the workers experienced as a result of interference and the presence of dead zones everywhere in the complex. This unfortunate situation had a negative impact on the operations of the mine and its overall productivity.
The natural obstacles that hinder wireless communication at the Itabira complex are due to the topography of the open pit and the ferrous content in the surrounding rock deposits. Other hurdles are the result of the constantly changing landscape and the continual movement of machinery, which place a strain on wireless reception. Yet another aggravating factor is the location of the mine itself that lies between two other mining sites whose wireless radio signals generate a great deal of interference. To make matters worse, the mining complex is situated at the outskirts of the town of Itabira, where local ISPs and private Wi-Fi networks contribute to crowding out the shared frequency, thus weakening the wireless system at the mine and causing even more noise.
Despite all the described hindering factors, we were able to provide ITV with two Mi241 modules that could overcome the existing obstructions at the mine. According to the tests conducted at Vale, the signal between the base station and the mobile unit covering the length of the mine did not suffer the usual dropouts of the conventional system due to dead spots. In fact, the former intermittent connection losses disappeared when our ReWiLinkTM technology was applied to the wireless network of the mine, increasing the reliability of the system. The tests also revealed another advantage of implementing our solution based on ReWiLinkTM –the coverage range of the wireless network doubled, as you can see in the diagrams of the previous page. These facts demonstrate that our ReWiLinkTM technology is well-suited to the challenging environment intrinsic to mining sites. Therefore, we can offer you a tested product that can improve the reliability of your current system by providing you both with interference immunity and range extension.
Our customer says…
“The R&D team is convinced that ReWiLinkTM would increase the reliability of existing networks and prolong the lifespan of existing 802.11-based equipment”.
Niels Jernes Vej 10
9220 Aalborg Oest
Tel: +45 9635 4500