RU2667686C1 - High-speed network long communication system - Google Patents

Abstract

FIELD: computer equipment.SUBSTANCE: invention relates to the field of automation, communications and computer technology, for the high-speed network long communication system. System contains station access devices, interphone call devices, a communication network in the form of a passive optical network, optical line and network terminals, optical ports, splitters, passive optical network fiber, distillation access devices comprising a power supply unit from an alternating current network and two optical network terminals, telephones and video cameras, emergency recovery places, railway automation and telemechanics equipment, long-distance communication switches, station equipment RAT, station commutators of operational and technological communication with the attendant consoles on the station and the corresponding switches of the transport network, fiber-optic communication lines, portable interface unit including an autonomous power supply and an optical network terminal.EFFECT: increased speed and volume of the transmission of discrete information is achieved.5 cl, 1 dwg

Description

The invention relates to the field of automation, communication and computer technology, namely, distillation communication systems of high-speed rail.

The distillation communication system is known (see Kosova VV Operational and technological communication of the railway department. Production and practical publication. Transport. Publishing House, 1993, chap. 1, section 5). In the known system, the communication of subscribers on the stage with duty on stations limiting the stage and with dispatchers is carried out via cable lines to which intercoms or sockets installed on signaling relay cabinets are connected, which, in turn, are connected by performers handsets.

The distillation telephone line is connected to the equipment for operational technological communication (OTC) installed at neighboring stations limiting the distillation. The OTC equipment provides connection to the distillation line of the station on-call control panels (DSP). The chipboard is called when the handset of the telephone set is picked up or when the TPS tube is connected, the call goes to two station attendants at the same time and the calling subscriber calls the desired subscriber by voice. If necessary, the station duty officer calls the distillation connection to the train dispatcher, energy dispatcher, track distance dispatcher or communication dispatcher.

The disadvantages of the known distillation communication system are the low quality of communication due to the large attenuation of the physical line, the presence of industrial interference, as well as the high cost of construction and operation.

A known system of distillation communication as part of operational-technological communication for a railway section, containing switching stations, channels of intercom and dispatch communication, intercoms and linear sets of distillation communication, while a cellular gateway is connected to the switching station through an additional linear set of distillation communication, providing communication on a railway section from any point of the haul covered by cellular communication (RU2393642C2, Н04М 3/56, B61L 27/00, 11/27/2009).

The well-known distillation communication system allows to improve the quality of communication, and also provides the ability to send a call from the station duty to the subscriber located on the stage.

However, in the known communication system, it is possible to fail to establish a connection in an area with poor radio conditions, and there is also no possibility of transmitting data from railway automation equipment and telemechanics on the stage.

The problem solved by the invention is to create a distillation communication system for a high-speed line, providing high quality, reliable communications and the ability to exchange data between distillation and station equipment of railway automation and telemechanics.

The technical result consists in increasing the speed and volume of transmission of discrete information, the quality and reliability of telephone communications, ensuring immunity to industrial and atmospheric interference through the use of optical networks, as well as expanding the functionality by providing data exchange between distillation and station equipment of railway automation and telemechanics.

The technical result is achieved by the fact that the high-speed trunk distillation communication system comprises access stations installed at stations restricting the distillation, a communication network, distillation communication intercoms and distillation access devices, wherein the communication network is based on passive optical network technology, each station access device includes optical linear and network terminals, interfaced through optical ports with a passive optical network, to each optical the fiber of which is included splitters with the possibility of transit of the light flux and branching of its part to the distillation access points, each of them contains two optical network terminals with electrical and optical ports for connecting intercom and distillation communication devices, telephones and video cameras of the emergency repair site and equipment of railway automation and telemechanics located on the stage, and an AC power supply unit, one of the optical network terminals of the access device connected to the optical line terminal of the passive optical communication network connected to the optical line terminal of the access station device installed on the other station through the coupler of the corresponding splitter to the optical linear terminal of the station access device installed on the other station, the optical linear terminal each station access device is configured to interface through a corresponding electrical port with a station railway automation and telemechanics equipment, a long-distance communication switch, a station switch for operational-technological communication with a station duty attendant console connected to it and a corresponding transport network switch, the last of which is also connected to the operational-technological communication switch.

The number of passive access devices on the stage is set based on the conditions of maximum attenuation of the optical communication line between the station access switch and the most remote distillation access device, not more than 36 dB.

At the same time, for receiving and transmitting data in the direction of each limiting station, one fiber optic communication line is used using light fluxes of different wavelengths or two fibers with the same wavelength.

Telephones and video cameras of the emergency recovery site, remote from the nearest distillation access device, are connected to its optical network terminal through a portable interface unit via a fiber optic communication line.

At the same time, the interface unit includes an autonomous power supply unit and an optical network terminal with electric ports for connecting telephone sets and a video camera of the emergency response site and an optical port for connecting to a fiber-optic communication line.

Each access device is installed on the appropriate rack distillation telephone.

The invention is illustrated in the drawing, which shows a structural diagram of one embodiment of a distillation system for high-speed rail.

The high-speed trunk distillation communication system contains access stations 3 and 4 (UDS 3 and UDS 4) installed at stations 1 and 2, limiting the stage, intercom and call devices 5 of distillation communication (PVU 5), the communication network is designed as a passive optical network 6, each station access device 3 and 4 includes optical line and network terminals 7 and 8 (OLT 7 and ONT 8), interfaced through optical ports with a passive optical network 6, passive access devices of which are made in the form of splitters 9 and 10, included in with the corresponding fiber 11 and 12 of the passive optical network 6 with the possibility of providing transit of the light flux and branching of its part to the distillation access devices 13 (UDP 13).

Each distillation access device 13 contains an AC power supply unit 14 and two optical network terminals 15 and 16 (ONT 15 and ONT 16) with electrical and optical ports for connecting the PVU 5, telephones 17, and the video camera 18 of the emergency repair site, and also equipment 19 of railway automation and telemechanics (ZhAT 19), located on the stage.

The optical port ONT 15 is connected through a coupler of the splitter 9 of the optical fiber 11 of the passive optical network 6 to the OLT 7 of the UDS 3, and the optical port ONT 16 is connected through the coupler of the splitter 10 of the passive optical network 6 to the OLT 7 of the UDS 4.

At each station, the OLT 7 is configured to interface with the station equipment 20 of railway automation and telemechanics (ZhAT 20), a long-distance communication switch 21, an operational-technological communication station switch 22 with a station control desk 23 connected to it and a corresponding switch 24 of the transport network 25, which is also connected through the switch 22 to the electrical port of the ONT 8.

The switch 22 provides communication between subscribers on the stage with the station duty.

To receive and transmit information in the direction of each limiting stage, stations 1 and 2, respectively, use a fiber 11 and 12 of a passive optical network 6 using light fluxes of different wavelengths or two fibers with the same wavelength (not shown in the drawing).

Telephone sets 17 and a video camera 18 of the emergency recovery site located near one of the UDP 13 are connected directly to the electric port ONT 15 or ONT 16.

Telephone sets 17 and video cameras 18 of the emergency recovery site remote from the UDP 13 are connected to the optical portal ONT 15 or ONT 16 through the portable interface unit 26 via a fiber-optic communication line 27.

The interface unit 26 includes an autonomous power supply unit 28 and an optical network terminal 29 (ONT 29) with electrical ports for connecting telephones 17 and a video camera 18 of the emergency response site and an optical port for connecting to a fiber optic communication line 27.

Distillation communication of a high-speed line (HSR) is based on the technology of passive optical networks (GPON technology). When organizing telecommunications access of infrastructure facilities located on the high-speed train, the following conditions are taken into account:

- the length of the haul;

- the presence on the stage every 1.5-2 km of containers in which distillation devices 13 access are located. In the container, the temperature regime of closed heated rooms is automatically maintained and there is AC power;

- the maximum attenuation of the optical line between the station access device 3 or 4 and the most remote UDP 13 is not more than 36 dB;

In the proposed embodiment of the high-speed trunk distillation communication system, for communication with each of the two stations 1 and 2, fibers 11 and 12 of the passive optical network 6 and two splitter 9 and 10 at each access point UDP 13 are used.

Communication from the UDS 3 or UDS 4 to the access devices of the UDP 13 is carried out with a luminous flux with a wavelength of λ1, and from UDP 13 to UDS 3 or UDS 4 on a wavelength of λ2. Splitters 9 and 10 operate in a passive mode, providing transit and branching of the light flux to the distillation access devices 13.

For conversations with subscribers on duty at station 1, the intercom 5 is connected to the input / output of ONT 15, for conversations with the duty at station 2 on input / output ONT 16. The distillation access device 13 operates when the power supply unit 14 is connected to an AC network current.

To call the person on duty at station 1 or 2, the intercom-ringing device 5 generates a corresponding ringing signal according to the DTMF standard (two-frequency encoding). ONT 15 or ONT 16 converts the call signal into an optical signal, which is sent through a fiber splitter 9 or 10 to 11 or 12 to OLT 7 of station 1 or 2, respectively, which converts it into an electric signal and transfers it to switch 20 on the station duty officer via switch 22 1 or 2.

The railway automation equipment 19 on the stage, connected to the electric ports of ONT 16 or ONT 15, exchanges data with the station equipment 20 of railway automation and telemechanics installed at stations 1 or 2 through a splitter 9 or 10 over fiber 11 or 12 and OLT 7, respectively UDS 3 or UDS 4, which provides a connection to the station equipment 20.

When connecting the telephones 17 and the video camera 18 of the emergency response site to the ONT 16 or ONT 15 electric ports, either directly or via the portable interface unit 26, they similarly communicate with OLT 7, respectively, UDS 3 or UDS 4, each of which is connected to a long-distance switch 21, providing a connection with the management of the railway.

In the event of a breakdown of fiber 11 of network 6, the communication of subscribers of the distillation communication with the duty officer at station 1 is carried out via fiber 12 through OLT 7 of the UDS 4, switch 24 of station 2, transport network 25, switch 24 of station 1 and switch 22, which provides connection to the console 23 of the duty officer station 1.

In the event of a breakdown of fiber 12 of network 6, the communication of subscribers of the distillation communication with the duty officer at station 2 is carried out via fiber 11 through OLT 7 of UDS 3, switch 24 of station 1, transport network 25, switch 24 of station 2 and switch 22 of station 2, providing connection to the console 23 station duty officer 2.

Thus, the organization of a high-speed trunk distillation communication system using passive optical networks allows you to expand the functionality, improve the quality and reliability of communications due to immunity to industrial and atmospheric interference, ensure the transmission of signals at high speed, and in addition, reduce construction and operating costs.

Claims (5)

1. A distillation communication system comprising station access devices installed at stations restricting the distillation, a communication network and distillation communication intercoms, characterized in that the distillation access devices are introduced, the communication network is based on passive optical network technology, each station device access includes optical linear and network terminals, interfaced through optical ports with a passive optical network, in each optical fiber of which splitters are included with the possibility of providing transit of the light flux and branching of its part to distillation access devices, each of which includes two optical network terminals with electrical and optical ports for connecting intercom and distillation communication devices, telephones and a video camera of the emergency repair workstation and railway automation and telemechanics equipment placed on the stage, and the AC power supply unit, one of the optical network terminals of the distillation access device is connected through the coupler of the corresponding splitter to the optical linear terminal of the station access device installed on one of the stations, and the other through the coupler of the corresponding splitter of the passive optical communication network to the optical linear terminal of the station access device installed on the other station, the optical linear terminals of each station access device are made with the possibility of interfacing through an appropriate electric port with station equipment ki and remote control, switch, long-distance communication, the station switch operatively-process communication with a connected remote assistant station and a corresponding transport network switch, the latter of which is also operatively connected to the switch-on process communication station. 2. The system according to claim 1, characterized in that the number of passive access devices on the stage is set based on the condition of maximum attenuation of the optical line between the station access switch and the most remote distillation access device not more than 36 dB. 3. The system according to any one of paragraphs. 1 or 2, characterized in that for the reception and transmission of data in the direction of each limiting the station using one fiber optic communication line using light flux of different wavelengths or two fibers with the same wavelength. 4. The system according to any one of paragraphs. 1 or 2, characterized in that the telephone sets and video camera of the emergency recovery work site remote from the nearest distillation access device are connected to its optical network terminal via a portable interface unit via a fiber optic communication line. 5. The system according to claim 3, characterized in that the telephones and video cameras of the emergency recovery work site remote from the nearest distillation access device are connected to its optical network terminal via a portable optical network terminal via a fiber-optic communication line.

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