In the production process of mines, due to the high mobility of mobile targets such as mine operators and vehicles, it is difficult for managers to keep abreast of the latest work of staff and vehicles. When there is a potential safety hazard, there is no way to deal with it in the first place, and then miss The best processing time. Therefore, it is necessary to establish a complete mine safety monitoring and management system. The stability, reliability and mobility of the network transmission platform in this system are particularly important. The Strix Mesh communication platform has been used for a long time in Shenhua and China Coal Group's open pit mines and mines, which proves that the platform has good performance and has become the preferred equipment in the mine's comprehensive mobile communication network.
Recently, Strix launched the MIMO 11n Mesh product series, strategically using 802.11n and MIMO technology to further improve the performance of multi-mode Mesh solutions. Launched a new generation of mine integrated communication platform that can be applied to mine production management and safety supervision, so that high-definition video surveillance systems with high occupied bandwidth can also be fully applied to mine safety monitoring and management.
With fine-tunable mobility parameters, the MIMO 11n Mesh product family also supports high-speed mobility, uninterrupted roaming and handover characteristics, making it suitable for mine-vehicle applications.
Install video surveillance points and mobile in-vehicle equipment on mobile vehicles. When the vehicle moves at high speed along the line covered by the wireless Mesh base station, the in-vehicle equipment obtains uplink information in the wireless environment through background scanning, including signal strength and signal noise Ratio, link performance, load of the passed Mesh node, etc., the weighted average of the above indexes is used to obtain the comprehensive index of each link, and then the main link and the alternative link are selected; when the system detects the main link After the link is less than a certain value of the alternative link index, the vehicle-mounted device performs the switching operation, and the data link is switched from the main link to the alternative link. Using Strix DMA Layer 2 Mesh protocol, device link selection and fast switching can be completed within 50ms, ensuring stable uploading of video and related application system information without interruption.
In addition, the new MIMO 11n Mesh also upgrades the performance of the Strix Mesh communication network in the following aspects, comprehensively improving the management level of the mine security video surveillance system. Minimize the loss of sudden accidents in the mine and lay a solid foundation for safe production in the entire mine.
Ø Gigabit bandwidth: A single base station supports up to 6 RF technologies in any combination, with an overall capacity of up to 1800M, a single RF board up to 300M bandwidth, and full HD support.
Ø Strong anti-interference ability: due to the use of multi-module and multi-frequency technology, the entire network can work simultaneously at multiple frequency points and channels; at the same time, it can also automatically convert the equipment to work according to the use and interference of surrounding channels Channels to reduce the impact of channel interference.
Ø Network management system upgrade, compatible with existing network: The new network management system supports the new 11n deployment and can also be compatible to manage the existing 802.11a / b / g wireless network. Upgrade intelligent optimization algorithms and end-to-end QoS quality of service, load balancing, network path optimization, and other feature designs that optimize performance.
Ø High invulnerability: The equipment has IP68 protection grade and good impact resistance and shock resistance. It conforms to ESTI 300-192-4 specifications T41.E, Class 4M3, and Mil-STD-810 standards, and is suitable for the harsh geographical conditions of mines. And natural conditions.
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