Recent research conducted by SUN Jiping from the School of Artificial Intelligence at the China University of Mining and Technology-Beijing has shed light on the intricacies of wireless transmission in mining environments, a crucial element for the advancement of mobile communication systems and positioning technologies in underground operations. The findings, published in ‘Gong-kuang zidonghua’ (Journal of Mine Automation), offer valuable insights that could revolutionize how mining companies approach wireless communication, particularly with the impending rollout of 5G technology.
The study involved comprehensive wireless transmission tests across a broad frequency spectrum ranging from 350 MHz to 6 GHz, conducted in various mine settings, including curved tunnels, branch tunnels, and fully mechanized mining faces. The results revealed a consistent pattern: lower frequencies tend to experience less attenuation, particularly in the 350 MHz to 900 MHz range. “Our tests indicate that the best performance for wireless transmission occurs at lower frequencies, especially in challenging environments like curved tunnels,” SUN noted. This information is pivotal for mining operations that rely heavily on real-time communication and positioning systems to enhance safety and efficiency.
The implications of these findings are profound. By optimizing the frequency bands and strategically positioning wireless communication base stations and antennas, mining companies can significantly improve communication reliability. SUN recommends that the preferred working frequency bands for underground wireless communication systems be set between 700 MHz and 900 MHz. “Setting base stations at turning points of curved tunnels and branch points can dramatically minimize the adverse effects of tunnel geometry on signal transmission,” he emphasized.
This research not only addresses the technical challenges faced by the mining sector but also aligns with the broader industry trends towards digital transformation and automation. As the mining industry increasingly adopts advanced technologies, the ability to maintain robust communication networks is essential for ensuring operational safety and efficiency. The findings have already influenced the People’s Republic of China’s energy industry standards, paving the way for the implementation of new specifications for 5G communication systems in coal mines.
With the mining sector poised for a technological overhaul, the insights from this research could serve as a catalyst for further innovations in wireless communication. As companies seek to enhance their operational capabilities, the strategic deployment of these findings may lead to not just improved safety protocols, but also increased productivity and cost savings.
For those interested in the intersection of technology and mining, the work of SUN Jiping and his team represents a significant step forward. To learn more about his research and its implications for the mining industry, visit lead_author_affiliation.
