Emerging technologies such as 5G, big data and artificial intelligence are integrating with the coal industry at an accelerated pace, and the coal industry is facing new tasks of transformation and upgrading. China Coal Science Changzhou Research Institute takes 5G as the "new engine" to accelerate the construction of smart mines.

Focus on the industry demand and incubate the "new bud" of 5G for mining

The construction of intelligent mine cannot be separated from the support of communication network, especially the support of wireless communication network. On September 21, 2022, Changzhou Research Institute made a major breakthrough in 5G base stations. It was the first in China to launch a mine safety base station integrating functions of 5G, WiFi6, network switching and UWB precise positioning, and successfully obtained the coal safety certificate, realizing the safety and lightweight innovation of underground 5G base stations. This is another breakthrough made by Changzhou Research Institute after it launched the first batch of 5G systems and related products in China in August 2020, accelerating the "new engine" of 5G in smart mines.

The base station organically integrates 5G with WIFI6, precise positioning and other functions, which not only enrichis the product functions, but also reduces the use of explosion-proof shell, improves the installation convenience, and significantly reduces the product cost and installation and maintenance cost.

KT28F (5G) -F1 basic safety base station for mining

Give full play to technological advantages to Cultivate 5G "branches" for mining

In recent years, Changzhou Research Institute has deeply researched and developed the 5G field for mining, including core network, base station, controller network interface, mobile phone terminal and other equipment. The products cover the ground core network, underground application terminal and 5G module, with a complete set of 5G system solutions for mining. Have the following characteristics and industry advantages:

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The 5G bearer network will be integrated with the existing industrial ring network

5G bearer network equipment features large port data capacity (50MB / 100MB), "FlexE" hard slice, high-precision clock synchronization protocol (1588V2) and other technical features, which meet the requirements of large bandwidth, low delay, and wide access of the current industrial ring network.

Network slicing technology can combine the newly built 5G bearer network and many industrial Ethernet ring networks in the mine into one network. Different slicing networks carry different services such as monitoring, video, 5G and communication respectively, greatly reducing the number of underground networks and reducing operation and maintenance costs.

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5G base station and UWB positioning, WIFI6 and network switching technology integration

5G+UWB+WIFI6 integrated base station, three different wireless transmission modes can be independent of each other, but also the 5G network can be used as the transmission medium, to provide high-capacity, low-delay, high-reliability data transmission and integrated business applications for the precise positioning of coal mines, high-definition video monitoring, remote intelligent control and other applications.

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Self-developed 5G module

The module can be used as an optional component to upgrade the original communication mode with the products of Changzhou Research Institute. While providing large bandwidth and low delay, the communication cables of the equipment are reduced and the deployment flexibility of the equipment is improved. It can also be matched with mobile high-definition cameras to achieve ultra-clear video stream transmission, improve the accuracy of machine vision analysis, and further strengthen the operational capabilities of unmanned underground and underground operating robots. The physical circuit of the module is compatible with 4G modules and supports multiple 5G modules platforms, so 4G/5G modules can be reasonably selected according to the actual application requirements and budget. The product can be used for 5G upgrading of the whole mine broadcast, personnel positioning base station data return, high-definition camera video push stream and other systems.

Consolidate the "foundation" of 5G for mining by integrating industry trends

In view of the high power consumption of 5G transmission control equipment and the difficulty of heat dissipation of flation-proof shell, Changzhou Research Institute has carried out industrial design transformation, software simulation and field test on the shell and heat dissipation mechanism of 5G products, optimized the heat dissipation solution and improved the product stability.

On the basis of the original mining 4G wireless communication system, 4G/5G integration networking is realized, and application services such as "high-definition industrial video, industrial intelligent control and unmanned driving" carried by 5G are combined with services such as "mobile voice service and integrated scheduling" carried by 4G system, which not only protects the original investment, but also improves product performance. It meets the needs of communication network for mine intelligent construction.

At present, Changzhou Research Institute 5G system has been implemented in many coal mines in Shanxi, Shaanxi, Inner Mongolia, Ningxia and so on. It has realized the application of high-definition video uploading and monitoring, remote intelligent control, unmanned driving and other scenarios, which has been well received by customers.