A high-power mine-used intrinsically safe 10-Gigabit three-layer switch

Abstract

The invention belongs to the technical field of 10-Gigabit three-layer switch, and discloses a high-power mining intrinsically safe 10-Gigabit three-layer switch, including: multiple isolated power supplies, power detection circuits, current control circuits, 10-Gigabit switching circuits and multiple Power consumption group, multiple isolated power supplies are connected to adjacent isolated power supplies, multiple isolated power supplies are respectively connected to the power detection circuit, the power detection circuit is respectively connected to the current control circuit and the 10 Gigabit switching circuit, the current control circuit is connected to the 10 Gigabit The switching circuit is connected, and the current control circuit is respectively connected with multiple power consumption groups. The invention adopts the multi-channel isolated power supply expansion design, and the single-channel load meets the power output requirements of the single-channel intrinsically safe power supply, and can realize step-by-step power-on and reduce the impact current.

Description

technical field [0001] The invention belongs to the technical field of ten-gigabit three-layer switch, in particular to a high-power mining intrinsically safe ten-gigabit three-layer switch. Background technique [0002] Coal mine comprehensive automation is the guarantee of high yield, high efficiency and safe production in coal mine, and coal mine underground network platform is the basis for realizing coal mine comprehensive automation. At present, many coal mines in my country have established industrial Ethernet for the monitoring of underground coal mining equipment and underground environmental parameters; but mainly adopt the 100M + Gigabit hybrid network mode (100M downlink + Gigabit uplink ring). [0003] The shortcomings of the current underground Ethernet switch are mainly reflected in the following points: [0004] The transmission rate is not high, and most of them focus on 100M port communication, and generally there are only 2-3 fixed uplink Gigabit ring por...

AI Technical Summary

Problems solved by technology

[0005] Data exchange is mainly at the data link layer. With the development of underground communication monitoring technology and the increase of equipment, the amount of data to be transmitted is also rising sharply. The traditional two-layer forwarding technology can no longer meet the needs of modern underground communication.

[0006] The intrinsically safe power supply used in the mine has a clear limit on the output power (GB3836.4 intrinsically safe explosion-proof standard)

Generally 12V / 1.2A or 18V / 900mA, this power requirement limits the use of most ordinary high-power 10G L3 switches in underground

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