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Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine

An intrinsically safe, Ethernet technology, applied in data exchange network, error correction/detection using interleaving technology, business, etc., can solve the collapse of underground communication network, does not have explosion-proof properties, and does not meet the safety specifications of coal mine underground equipment to achieve high-speed transmission, simple installation and maintenance, and improved robustness

Inactive Publication Date: 2006-10-11
徐州华讯科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such switches are: (1) do not have flameproof properties, and do not meet the safety specifications of coal mine underground equipment; When a fault occurs during operation, it is easy to cause the collapse of the underground communication network, and the reliability of information transmission cannot be guaranteed; (3) There is no switch management and configuration function, and users cannot monitor the running status of the switch in real time
Therefore, it is not suitable for underground use in coal mines that require high reliability of information transmission

Method used

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  • Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine
  • Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine
  • Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] refer to figure 1 , U1: Ethernet Layer 2 switching chip, which is the core part of the switching circuit, realizes Ethernet Layer 2 switching, and is responsible for forwarding data packets between switching ports.

[0015] U2, U3: Ethernet physical layer transformer chips, each component contains four transformer groups, to realize code conversion and shaping of Ethernet data streams.

[0016] U4, U5: Ethernet interface and its status indicators, each component contains four interfaces, which are the connectors of Ethernet category 5 twisted pair RJ45 connectors, and each interface contains two indicator lights (orange and green respectively) .

[0017] OSC1: 25M crystal oscillator, responsible for generating 25MHz clock pulse signal.

[0018] OSC2: 10M crystal oscillator, responsible for generating 10MHz clock pulse signal.

[0019] U6: Embedded CPU chip, which is the core part of the control circuit, runs embedded operating system and control software on it, which...

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PUM

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Abstract

The disclosed mine-used explosion suppression industrial Ethernet exchange comprises mainly an Ethernet dual-layer exchange chip, a Ethernet access transformer, a network access with work an indicator, an embedded CPU, a memory, and an embedded real-time OS with control software. Wherein, it arranges whole circuit into an explosion-suppression shell. This invention improves robustness and security of underground communication network.

Description

technical field [0001] The invention relates to a mining network communication device, in particular a mining explosion-proof and intrinsically safe industrial Ethernet switchboard suitable for use in an inflammable and explosive environment with a lot of gas and coal dust in a coal mine. Background technique [0002] At present, a known switch is composed of an Ethernet Layer 2 switching chip, an interface transformer and a network interface, and the circuit is installed in an insulating shell to complete the forwarding of Ethernet data. Such switches are: (1) do not have flameproof properties, and do not meet the safety specifications for underground equipment in coal mines; (2) cannot form a ring network with self-healing functions because they do not provide uplink redundant When a failure occurs during operation, it is easy to cause the collapse of the underground communication network, and the reliability of information transmission cannot be guaranteed; (3) the manage...

Claims

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Application Information

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IPC IPC(8): H04L12/04H04L12/44H03M13/27G06F21/00G06Q10/00G06Q30/00G07F17/16G09C1/00H03M13/23H03M13/29H04B1/00H04B1/69H04B1/707H04B7/005H04B7/02H04B7/06H04B7/08H04B7/216H04B7/26H04B14/04H04J13/00H04J13/02H04K1/00H04L1/00H04L1/06H04L1/08H04L1/18H04L9/06H04L9/10H04L9/14H04L9/32H04L12/56H04L27/26H04L69/40H04W8/00H04W48/16H04W52/48
CPCH04L1/1848H04L1/0071H04L1/0041H04L1/1819H04B7/15535H04W52/143H04L47/34H04L27/2602H04L47/14H04L2001/0096H04L63/1441H04L47/28H04W52/225H04L1/1841H04L1/0069H04L63/0428H04L63/0807G07F17/16H04B7/084G06F21/6245H04L1/06H04B7/15507H04L1/0066H04W48/16H04W52/46H04W52/48H04L41/12G06Q20/10H04L5/0044H04L9/32H04J13/12G06Q20/401G06Q50/188H04L63/102H04W28/14H04W52/24H04L5/0042H04L63/065H04L67/306Y10S707/99939H04W52/241H04L1/0045H04L67/14H04W8/005G06Q30/0277H04L1/08H04W52/245Y02B60/50H04B7/0604H04B7/0894H04L67/16G06Q20/425G06Q20/1235G06Q30/0609Y10S707/99936H04L5/0023H04L2209/127H04W52/242H04L5/0083H04L47/10H04L1/1845Y10S707/99933G06Q20/385H04L67/51
Inventor 钱建生李鹏顾军左明文
Owner 徐州华讯科技有限公司
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