CN2672971Y - Flame-proof and Ben-an type network exchanger for mine - Google Patents
Flame-proof and Ben-an type network exchanger for mine Download PDFInfo
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- CN2672971Y CN2672971Y CN 200320123471 CN200320123471U CN2672971Y CN 2672971 Y CN2672971 Y CN 2672971Y CN 200320123471 CN200320123471 CN 200320123471 CN 200320123471 U CN200320123471 U CN 200320123471U CN 2672971 Y CN2672971 Y CN 2672971Y
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- 239000003245 coal Substances 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 8
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a flame-proof and Ben-an type network exchanger for mine, comprising an Ethernet two-layer commutate chip, an Ethernet interface power transformer, network interfaces and working station indicator electric connected together. The video image can be converted into digit signal at real time, and communicated in the local area network or wide area network. The network bandwidth is multiplexing with good communication image quality and high stability. Because the flame-proof and Ben-an type network exchanger for mine is essential-safe type, the utility model can be used in the coal mine hole, providing a valid video information conveyance flat base for the monitoring and dispatching in the coal mine hole and on the ground. The utility model has the advantages of simple structure, easy installation, dependable performance, good effect and wide-ranging practicability.
Description
One, technical field
The utility model relates to the mine explosion-suppression and intrinsic safety type network switch, and promptly a kind of mining network communication equipment is particularly useful for containing under the coal mine web-transporting device that uses in the environment of abominable gas such as gas.
Two, background technology
The communication system of China down-hole remains the network of each monitoring and controlling system special use mostly at present, unified information platform is seldom arranged, such communication network architecture has caused a lot of insoluble problems: (1) does not have the uniform communication agreement, the use bus FSK that has, the use synchronous difference four that has is sign indicating number mutually, and the system that has uses base band half-duplex transmission mode etc.Each system and other systems connection are very difficult, are difficult to accomplish data sharing, can not satisfy the needs of full mine comprehensively monitoring from now on.(2) network configuration is lack of standardization, and the equipment of different manufacturers can't insert, can not the common transmitted cable, optical cable, cause the overlapping investment of equipment, waste great amount of manpower and material resources and financial resources.(3) existing mine productive supervision system transmissions speed is all lower, all below 4800bps, can not transmit the multimedia comprehensive information of data, image, voice simultaneously.
Three, technology contents
(1) goal of the invention
The purpose of this utility model provides a kind of mine explosion-suppression and intrinsic safety type network switch, it is the key equipment that makes up Multimedia Integrated Services Digital Network under the coal mine, be used to solve the problem that communication network is various and communication standard differs for a long time under the coal mine, set up the unified information network platform of full mine, and improve the speed of message transmission.
(2) technical scheme
The utility model mine explosion-suppression and intrinsic safety type network switch, form by two layers of exchange chip of Ethernet, Ethernet interface transformer, network interface and working station indicator electrical connection, the 8-32 of exchange chip mouth connects the negative pole of the light-emitting diode of using as status indicator lamp respectively, the positive pole of light-emitting diode links to each other with power supply by resistance, and resistance plays the restriction function of current.The RXP1-RXP8 of exchange chip, RXM1-RXM8, TXP1-TXP8, TXM1-TXM8 connects the RXP1-RXP8 of Ethernet interface transformer chip respectively, RXM1-RXM8, TXP1-TXP8, the TXM1-TXM8 end, the CT1-CT4 end of Ethernet interface transformer divides two-way, the electric capacity of leading up to links to each other with ground, another road links to each other with power supply, the TX1M-TX8M of Ethernet interface transformer, TX1P-TX8P, RX1M-RX8M, the RX1P-RX8P end connects network interface TX1M-TX8M respectively, TX1P-TX8P, RX1M-RX8M, the RX1P-RX8P end, the CMT1-CMT8 end of Ethernet interface transformer links to each other with ground.Entire circuit is installed in the seal casinghousing, and container meets the metal or nonmetal the making of coal mine downhole safety standard.
Ethernet data frame certain interface from network interface is sent to Ethernet interface transformer chip, therein through after conversion of sign indicating number type and the waveform shaping, send to exchange chip, exchange chip is responsible for resolving ethernet data frame, by consulting the destination address in the Frame, which Ethernet interface is specified data should be sent to, and perhaps the form with broadcasting is sent to some Ethernet interfaces, mails to destination host through transmission cable.
(3) technique effect
The utility model mine explosion-suppression and intrinsic safety type network switch, be best suited for the web-transporting device that uses in the environment that contains abominable gases such as gas under the coal mine, adopt two layers of exchange chip of Ethernet, the Ethernet interface transformer, network interface and working station indicator are electrically connected combination, set up the Multimedia Integrated Services Digital Network in broadband in the down-hole, can realize data, speech and image in real time, high-speed transfer, transmission rate reaches 10-100Mbps, simultaneously can detect and control equipment long-range, fundamentally solved the problem that the mine communication standard differs, Coal Production had far reaching significance, its installation and maintenance are simple, the reliability height, effective, have practicality widely.
Four, description of drawings:
Fig. 1 is the utility model structured flowchart;
Fig. 2 is the utility model circuit theory diagrams
Among the figure: U2: exchange chip, U4, U5: ethernet physical layer transformer chip, U3, U10: Ethernet interface, OSC2:25M crystal oscillator, D3-D9: Ethernet interface status indicator lamp.U11: indicator light pull-up resistor resistance row.
Five, embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is described further:
The utility model mine explosion-suppression intrinsic safety type network switch, circuit mainly are electrically connected by two layers of exchange chip U2 of Ethernet, Ethernet interface transformer U1, U4, network interface U3, U10 and working station indicator D3-D10 to be formed.The LED1[0..3 of exchange chip U2] with LED2[0..3] interface is connected the negative pole of light-emitting diode D3-D9 respectively, the positive pole of D3-D9 is connected the back and links to each other with power supply V2.0 with the 2-9 pin of resistor chain U10, the RXP1-RXP8 of exchange chip U2 connects the RXP1-RXP8 end of Ethernet interface transformer chip U4 and U1 respectively, the RXM1-RXM8 of U2 connects the RXM1-RXM8 end of U4 and U1 respectively, the TXP1-TXP8 of U2 connects the TXP1-TXP8 end of U4 and U1 respectively, the TXM1-TXM8 of U2 connects the TXM1-TXM8 end of U4 and U1 respectively, the CT1-CT4 end of Ethernet interface transformer U4 and U1 divides two-way, the capacitor C of leading up to links to each other with ground F, another road links to each other with power supply V2.0, the TX1M-TX8M of Ethernet interface transformer U4 and U1, TX1P-TX8P, RX1M-RX8M holds the TX1M-TX8M that is connected network interface U3 and U10 respectively with RX1P-RX8P, TX1P-TX8P, RX1M-RX8M and RX1P-RX8P end, the CMT1-CMT8 end of Ethernet interface transformer U4 and U1 links to each other with ground F.The Ethernet switching chip of using is the KS8999 of KENDIN company, and the Ethernet interface transformer is the H1164 of PULSE company, and indicator light is the common LED light-emitting diode, and resistance row is 8 * 330 Ω, as the pull-up resistor of light-emitting diode.Circuit is installed in the seal casinghousing, and container adopts and meets coal mine downhole safety standard metal or nonmetal making.
Ethernet data frame certain interface from U3 or U10 is sent to U4 or U1 Ethernet interface transformer chip, therein through after conversion of sign indicating number type and the waveform shaping, send to the U2 exchange chip, exchange chip is responsible for resolving ethernet data frame, by consulting the destination address in the Frame, which port is specified data should be sent to, and perhaps the form with broadcasting is sent to other all of the port.Data forwarding to U4 or U1 Ethernet interface transformer carries out yard a type conversion and a shaping, is sent to U3 or U10 Ethernet interface, mails to destination host through transmission cable.U4, U5: ethernet physical layer transformer chip, each element comprise 4 transformer group, realize the conversion of sign indicating number row and the shaping of ethernet data stream.U3, U10: Ethernet interface, each element comprise 4 interfaces, are the connectors of Ethernet category 5 twisted pair RJ45 joint.The OSC2:25M crystal oscillator is responsible for producing the 25MHz clock pulse signal.D3-D10: Ethernet interface status indicator lamp.8 indicator lights in the circuit diagram are divided into two groups, and D3-D6 is one group, is used to indicate the operating state of port one, and D7-D10 is one group, the operating state of indication port 2, and such indicator light can have 1-8 group, the operating state of indicating port 1-8 respectively as required.Each led status is expressed as follows (is example with the port one indicator light): D3: Ethernet interface speed indicator light, if interface normally connects, then the bright expression speed of lamp is 100Mbps, and the expression speed of going out is 10Mbsp; D4: the full-duplex/half-duplex indicator light, after the normal connection of interface, the bright expression network of this lamp is a full-duplex mode, going out is expressed as semiduplex mode; D5: link/transmission indicator light, the bright expression network of this lamp normally connects, if transfer of data is arranged at this port, then indicator light flicker; D6: the collision detection indicator light, if data collision is arranged, indicator light is bright, otherwise for going out.U11: the resistance of indicator light pull-up resistor is arranged, and the supply current of each port led is provided, and each resistance row can connect 8 indicator lights.
Claims (3)
1. mine explosion-suppression and intrinsic safety type network switch, it is characterized in that: it is mainly by two layers of exchange chip of Ethernet (U2), Ethernet interface transformer (U1, U4), network interface (U10, U3) and working station indicator (LED) be electrically connected to form, the 8-32 of an exchange chip interface connects the negative pole of light-emitting diode respectively, the positive pole of light-emitting diode links to each other with power supply through resistance, exchange chip (U2) is by Ethernet interface transformer chip (U1, U4) with network interface (U10, U3) connect, entire circuit is installed in the metal or the nonmetal seal casinghousing of making that meets the coal mine downhole safety standard.
2. the mine explosion-suppression and intrinsic safety type network switch according to claim 1, it is characterized in that: (RXP1-RXP8) of described exchange chip (U2) connects Ethernet interface transformer chip (U4) and (U1) (RXP1-RXP8) end respectively, (U2) (RXM1-RXM8) connects (U4) and (U1) (RXM1-RXM8) end respectively, (U2) (TXP1-TXP8) connects (U4) and (U1) (TXP1-TXP8) end respectively, (U2) (TXM1-TXM8) connects (U4) and (U1) (TXM1-TXM8) end respectively, Ethernet interface transformer (U4) and (U1) (CT1-CT4) end divide two-way, the electric capacity (C) of leading up to links to each other with ground (F), another road links to each other with power supply (V2.0), Ethernet interface transformer (U4) and (TX1M-TX8M (U1), TX1P-TX8P, RX1M-RX8M) be connected network interface (U3) and (TX1M-TX8M (U10) respectively with (RX1P-RX8P) end, TX1P-TX8P, RX1M-RX8M) and (RX1P-RX8P) hold, (CMT1-CMT8) end of Ethernet interface transformer (U4) and (U1) links to each other with ground (F).
3. the mine explosion-suppression and intrinsic safety type network switch according to claim 1 and 2 is characterized in that: Ethernet switching chip adopts KS8999, and Ethernet interface transformer adopting H1164, indicator light are the common LED light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123471 CN2672971Y (en) | 2003-12-17 | 2003-12-17 | Flame-proof and Ben-an type network exchanger for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123471 CN2672971Y (en) | 2003-12-17 | 2003-12-17 | Flame-proof and Ben-an type network exchanger for mine |
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| Publication Number | Publication Date |
|---|---|
| CN2672971Y true CN2672971Y (en) | 2005-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200320123471 Expired - Fee Related CN2672971Y (en) | 2003-12-17 | 2003-12-17 | Flame-proof and Ben-an type network exchanger for mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466521C (en) * | 2006-04-30 | 2009-03-04 | 徐州华讯科技有限公司 | Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine |
-
2003
- 2003-12-17 CN CN 200320123471 patent/CN2672971Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466521C (en) * | 2006-04-30 | 2009-03-04 | 徐州华讯科技有限公司 | Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |