CN217508772U - Communication device for rail transit - Google Patents
Communication device for rail transit Download PDFInfo
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- CN217508772U CN217508772U CN202220560836.7U CN202220560836U CN217508772U CN 217508772 U CN217508772 U CN 217508772U CN 202220560836 U CN202220560836 U CN 202220560836U CN 217508772 U CN217508772 U CN 217508772U
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- 238000004891 communication Methods 0.000 title claims abstract description 38
- 239000013307 optical fiber Substances 0.000 claims abstract description 45
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000002146 bilateral effect Effects 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a communication device for rail transit, including casing and hardware, the casing includes upper housing and lower casing, upper housing and lower casing are the detachable connection, the hardware sets up in the casing, the hardware includes that first group opens into, second group opens into, first group opens out, second group opens out, specific function opens into, first group fiber interface, second group fiber interface, reset button and pilot lamp; the specific function opening comprises a first specific function opening and a second specific function opening; the utility model adds the optical fiber communication indicator light and the disconnection alarm indicator light in the communication device, when the optical fiber communication is abnormal or is disconnected, the indicator light sends out the alarm indication, which is beneficial to the daily operation and maintenance work; the soft switching of the large bilateral combined-hop communication loop is realized through an FPGA modeling form, and the stability of long-distance transmission signals is excellent; the utility model discloses the loop design is succinct, has avoided the loaded down with trivial details wiring of the interval secondary circuit of cable form connection.
Description
Technical Field
The utility model relates to a track traffic communication technical field specifically indicates a communication device for track traffic.
Background
A subway direct-current traction power supply system is a complex system, and the core technology of the system is control and protection of direct-current power supply. According to the requirements in subway design specifications, the direct current traction feeder line is required to be provided with double-side linked tripping protection, namely, when a short-circuit fault occurs in a certain double-side power supply section, feeder line breakers at two ends of the section are in linked tripping. The double-side jump protection is backup protection equipped in a double-side power supply mode of a direct current traction system and is mainly used for cutting off long-distance small current faults.
The existing urban rail transit direct current traction power supply system adopts a multi-core control cable to transmit an electric pulse signal to realize a joint tripping protection function between two traction stations. The multi-core cable transmits signals such as joint hopping, protection, locking and the like, and the prior art has the following problems:
1. transmitting node signals by using a secondary cable, and checking the matching of a joint-jump receiving relay and a joint-jump loop in detail when the distance is longer, otherwise, easily generating a protection refusal phenomenon;
2. the control cable is easy to be interfered by electromagnetic waves when being laid in a long distance, so that the misoperation of protection is caused;
3. there is no monitoring means for the occurrence of disconnection or poor contact of the quadratic control cable.
Therefore, a communication device for rail transit is a problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the secondary cable is used for transmitting node signals, the matching performance of a joint-jump receiving relay and a joint-jump loop needs to be checked in detail when the distance is long, otherwise the phenomenon of protection refusal is easy to occur; the control cable is easy to be interfered by electromagnetic waves when laid for a long distance, so that protection misoperation is caused; there is no monitoring means for the occurrence of disconnection or poor contact of the quadratic control cable.
In order to solve the technical problem, the utility model provides a technical scheme does: a communication device for rail transit comprises a shell and hardware, wherein the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are detachably connected, the hardware is arranged in the shell, the top of the hardware is detachably connected with the upper shell, and the hardware comprises a first group of input ports, a second group of input ports, a first group of output ports, a second group of output ports, a specific function input port, a first group of optical fiber interfaces, a second group of optical fiber interfaces, a reset button and an indicator light; the specific function opening comprises a first specific function opening and a second specific function opening, the first group of optical fiber interfaces comprises a first TX interface and a first RX interface, and the second group of optical fiber interfaces comprises a second TX interface and a second RX interface;
go up four angles of casing and all be equipped with first fixed orifices, be equipped with the second fixed orifices with first fixed orifices looks adaptation down on the casing, it all is equipped with the mounting to go up casing top and bottom, all be equipped with two sets of third fixed orifices on the mounting, all be equipped with the fourth fixed orifices on four angles of casing top and bottom lateral surface down.
Furthermore, the special function switch-in is used for receiving a branch signal and a close signal, and when the first special function switch-in receives a close signal and the second special function switch-in receives a close signal or a branch signal, a first TX interface in the first group of optical fiber interfaces is connected with a second RX interface in the second group of optical fiber interfaces.
Further, the first group of the input ports are used for receiving protection action signals and locking signals of the feeder cabinets, and the protection action signals and the locking signals are transmitted to an upper station through the first group of optical fiber interfaces.
Furthermore, the second group of the switches is used for receiving protection action signals and locking signals of the feeder cabinets and transmitting the protection action signals and the locking signals to a next station through the second group of optical fiber interfaces.
Furthermore, the indicator light comprises an optical fiber communication indicator light and a disconnection alarm indicator light.
Compared with the prior art, the utility model the advantage lie in: the utility model adds the optical fiber communication indicator light and the disconnection alarm indicator light in the communication device, when the optical fiber communication is abnormal or is disconnected, the indicator light sends out the alarm indication, which is beneficial to the daily operation and maintenance work; the soft switching of the large bilateral combined-hop communication loop is realized through an FPGA modeling form, and the stability of long-distance transmission signals is excellent; the utility model has simple loop design, and avoids the complex wiring of the secondary loop between the cable form connection sections; the utility model discloses it is easy and simple to handle, reasonable in design is worth wideling popularize.
Drawings
Fig. 1 is a schematic structural diagram of a communication device for rail transit according to the present invention.
Fig. 2 is a left side view of the communication device for rail transit of the present invention.
Fig. 3 is a top view of the communication device for rail transit of the present invention.
Fig. 4 is a wiring diagram of a communication device for rail transit according to the present invention.
As shown in the figure: 1. the device comprises a shell, 2, hardware, 3, an upper shell, 4, a lower shell, 5, a first group of opening-in, 6, a second group of opening-in, 7, a first group of opening-out, 8, a second group of opening-out, 9, a specific function opening-in, 10, a first group of optical fiber interfaces, 11, a second group of optical fiber interfaces, 12, a reset button, 13, an indicator light, 14, a first specific function opening-in, 15, a second specific function opening-in, 16, a first TX interface, 17, a first RX interface, 18, a second TX interface, 19, a second RX interface, 20, a first fixing hole, 21, a second fixing hole, 22, a fixing piece, 23, a third fixing hole, 24, a fourth fixing hole, 25, an optical fiber communication indicator light, 26 and a broken line alarm indicator light.
Detailed Description
The following provides a communication device for rail transit, which is described in detail with reference to the accompanying drawings.
The present invention will be described in detail with reference to the accompanying drawings 1-4.
A communication device for rail transit comprises a shell 1 and hardware 2, wherein the shell 1 comprises an upper shell 3 and a lower shell 4, the upper shell 3 is detachably connected with the lower shell 4, the hardware 2 is arranged in the shell 1, the top of the hardware 2 is detachably connected with the upper shell 3, and the hardware 2 comprises a first group of input ports 5, a second group of input ports 6, a first group of output ports 7, a second group of output ports 8, a specific function input port 9, a first group of optical fiber interfaces 10, a second group of optical fiber interfaces 11, a reset button 12 and an indicator light 13; the special function opening 9 comprises a first special function opening 14 and a second special function opening 15, the first group of fiber interfaces 10 comprises a first TX interface 16 and a first RX interface 17, and the second group of fiber interfaces 11 comprises a second TX interface 18 and a second RX interface 19;
go up 3 four angles of casing and all be equipped with first fixed orifices 20, be equipped with the second fixed orifices 21 with 20 looks adaptations of first fixed orifices on casing 4 down, 3 tops of last casing and bottom all are equipped with mounting 22, all be equipped with two sets of third fixed orifices 23 on the mounting 11, all be equipped with fourth fixed orifices 24 on 4 tops of casing down and the bottom lateral surface four angles.
The special function switch 9 is configured to receive a branch signal and a close signal, and when the first special function switch 14 receives a close signal and the second special function switch 15 receives a close signal or a branch signal, the first TX interface 16 in the first group of optical fiber interfaces 10 is connected to the second RX interface 19 in the second group of optical fiber interfaces 11.
The first group of open-close ports 5 are used for receiving protection action signals and locking signals of the feeder cabinets and transmitting the protection action signals and the locking signals to an upper station through a first group of optical fiber interfaces 10.
The second group of the input ports 6 are used for receiving protection action signals and locking signals of the feeder cabinet and transmitting the protection action signals and the locking signals to a next station through a second group of optical fiber interfaces 11.
The indicator lamp 13 comprises a fiber communication indicator lamp 25 and a disconnection warning indicator lamp 26.
The utility model relates to a communication device for track traffic's concrete implementation process as follows: first, assuming that there are three stations, station a, station B and station C, at A, B, C when stations are all operating normally, the station B is in a position separating state, the station A carries out bilateral power supply, the station B and the station C carry out bilateral power supply, a large bilateral switching on-off end of the station A, B, C has no input amount due to position separating, the states of the first specific function on-off 14 and the second specific function on-off 15 are both 0, enabling the first group of optical fiber interfaces 10 of the station B and the second group of optical fiber interfaces 11 of the station A to be in a real-time communication state at the moment, enabling the second group of optical fiber interfaces 11 of the station B and the first group of optical fiber interfaces 10 of the station C to be in real-time communication, enabling the first group of access ports 5 of the station B to correspond to the second group of access ports 8 of the station A at the moment, enabling the first group of access ports 7 of the station B to correspond to the second group of access ports 6 of the station A, enabling the second group of access ports 6 of the station B to correspond to the first group of access ports 7 of the station C, and enabling the second group of access ports 8 of the station B to correspond to the first group of access ports 5 of the station C; therefore, the fault signal of the station A can be transmitted to the station B through the optical fiber, the fault signal of the station B can also be transmitted to the station A through the optical fiber, the fault signal of the station B can be transmitted to the station C through the optical fiber, and the fault signal of the station C can also be transmitted to the station B through the optical fiber, so that the double-side joint jump protection effect is realized;
when the A, B, C station runs in a cross-region mode, the B station quits running, the B station is in a closed position state, a combined interval of the A station and the C station carries out large bilateral power supply, a first specific function switch-in 14 and a second specific function switch-in 15 of the B station device are powered on due to the fact that the combined interval is in a closed position, the first specific function switch-in 14 and the second specific function switch-in 15 are both 1, and therefore the first group of optical fiber interfaces 10 and the second group of optical fiber interfaces 11 of the B station form internal communication; the second group of optical fiber interfaces 11 of the A station are communicated with the first group of optical fiber interfaces 10 of the C station, so that the second group of open-in 6 of the A station corresponds to the first group of open-out 7 of the C station, and the second group of open-out 8 of the A station corresponds to the first group of open-in 5 of the C station; therefore, the fault signal of the A station can be directly transmitted to the C station through the optical fiber, and the fault signal of the C station can also be transmitted to the A station through the optical fiber, so that the double-side linked jump protection effect is achieved.
The utility model adds the optical fiber communication indicator lamp 25 and the disconnection alarm indicator lamp 26 in the communication device, when the optical fiber communication is abnormal or is disconnected, the indicator lamp sends out the alarm indication, which is beneficial to the daily operation and maintenance work; the soft switching of the large bilateral combined-hop communication loop is realized through an FPGA modeling form, and the stability of long-distance transmission signals is excellent; the utility model has simple loop design, and avoids the complex wiring of the secondary loop between the cable form connection sections; the utility model discloses it is easy and simple to handle, reasonable in design is worth wideling popularize.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (5)
1. A communication device for rail transit, comprising a housing (1) and hardware (2), characterized in that: the shell (1) comprises an upper shell (3) and a lower shell (4), the upper shell (3) is detachably connected with the lower shell (4), the hardware (2) is arranged in the shell (1), the top of the hardware (2) is detachably connected with the upper shell (3), and the hardware (2) comprises a first group of opening-in parts (5), a second group of opening-in parts (6), a first group of opening-out parts (7), a second group of opening-out parts (8), a specific function opening-in part (9), a first group of optical fiber interfaces (10), a second group of optical fiber interfaces (11), a reset button (12) and an indicator light (13); the specific function opening (9) comprises a first specific function opening (14) and a second specific function opening (15), the first set of fibre optic interfaces (10) comprises a first TX interface (16) and a first RX interface (17), the second set of fibre optic interfaces (11) comprises a second TX interface (18) and a second RX interface (19);
go up casing (3) four angles and all be equipped with first fixed orifices (20), be equipped with second fixed orifices (21) with first fixed orifices (20) looks adaptation down on casing (4), it all is equipped with mounting (22) to go up casing (3) top and bottom, all be equipped with two sets of third fixed orifices (23) on mounting (22), all be equipped with fourth fixed orifices (24) down on casing (4) top and the bottom lateral surface four angles.
2. A communication device for rail transit according to claim 1, characterized in that: the special function switch-in (9) is used for receiving a branch signal and a close signal, and when the first special function switch-in (14) receives the close signal and the second special function switch-in (15) receives the close signal or the branch signal, a first TX interface (16) in the first group of optical fiber interfaces (10) is communicated with a second RX interface (19) in the second group of optical fiber interfaces (11).
3. A communication device for rail transit according to claim 1, characterized in that: the first group of opening-in ports (5) are used for receiving protection action signals and locking signals of the feeder cabinets and transmitting the protection action signals and the locking signals to an upper station through a first group of optical fiber interfaces (10).
4. A communication device for rail transit according to claim 1, characterized in that: the second group of the open-close ports (6) are used for receiving protection action signals and locking signals of the feeder cabinets and transmitting the protection action signals and the locking signals to a next station through a second group of optical fiber interfaces (11).
5. A communication device for rail transit according to claim 1, characterized in that: the indicator lamp (13) comprises an optical fiber communication indicator lamp (25) and a disconnection alarm indicator lamp (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220560836.7U CN217508772U (en) | 2022-03-15 | 2022-03-15 | Communication device for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220560836.7U CN217508772U (en) | 2022-03-15 | 2022-03-15 | Communication device for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217508772U true CN217508772U (en) | 2022-09-27 |
Family
ID=83345649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220560836.7U Expired - Fee Related CN217508772U (en) | 2022-03-15 | 2022-03-15 | Communication device for rail transit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217508772U (en) |
-
2022
- 2022-03-15 CN CN202220560836.7U patent/CN217508772U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220927 |
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| CF01 | Termination of patent right due to non-payment of annual fee |