CN108163017A - A kind of railway digital train dispatch radio communication dispatching desk - Google Patents
A kind of railway digital train dispatch radio communication dispatching desk Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/70—Details of trackside communication
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Abstract
The present invention provides a kind of railway digital train dispatch radio communication dispatching desk, and the railway digital train dispatch radio communication dispatching desk includes host and N number of operating terminal；The host includes N number of host interface unit, button display unit and power supply unit；Button display unit is connect with N number of host interface unit, host interface unit connection 2M loop networks；N number of host interface unit is connect respectively with N number of operating terminal, is communicated between host interface unit and operating terminal by 2B+D；Each operating terminal is connect respectively with recorder, printer, microphone and speaker.The present invention is based on modularized design, the hardware structure for having high performance-price ratio, compatibility strong, expansible；Based on embedded technology, it can be achieved that the equipment of the administrative pipe of multiple road bureaus carries out centralized management function；Based on the 2B+D technologies of 2M ring networkings, operating terminal and host voice data and the function of control signaling data synchronous transfer are realized, improve voice transfer antijamming capability, improve speech quality.
Description
Technical Field
The invention relates to a dispatching desk, in particular to a railway digital wireless train dispatching desk.
Background
At present, 8 thousands of kilometers of railways in China still adopt a wireless communication system constructed by the original analog technology, and the traditional analog communication technology cannot completely meet the requirements of high speed, heavy load, informatization and modernization of railways in the face of contradictions among limited frequency spectrum resources, increasing passenger flow and a large amount of information needing to be processed.
Digital communication has been a mainstream development in the communication field, because it has excellent performance to gradually replace traditional analog communication in more and more applications. The development of the dispatch communications "number of modules" for railways has been inevitable. The original wireless train dispatching desk is built by adopting an analog circuit, the function is single, the conversation function is realized, and the conversation tone quality is poor; and one dispatching desk can only manage the administration equipment of one section, and depends on manual decentralized management. When calling and talking each time, the locomotive needs to be confirmed by a manual telephone and then the dispatching desk is operated, so that the efficiency is low, and the driving safety is influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a railway digital wireless train dispatching desk to overcome the defects in the prior art.
In order to achieve the aim, the invention provides a railway digital wireless train dispatching console, which comprises a host and N operating terminals; the host comprises N main control interface units, a key display unit and a power supply unit; the key display unit is connected with the N main control interface units, and the main control interface units are connected with the 2M ring network; the power supply unit supplies power to the N main control interface units and the key display unit; the main control interface unit is connected with the operation terminal and is communicated with the operation terminal through 2B + D; each operation terminal is respectively connected with the recorder, the printer, the microphone and the audio box.
As a further description of the digital wireless train dispatching desk for railways, preferably, the operation terminal comprises a first CPU, a liquid crystal key interface, a first 2B + D interface, a first USB interface, a first 100M ethernet interface, an audio circuit, a DSP circuit, an RS422 interface, a first RS232 interface, and a first power management module; the first CPU is respectively connected with the liquid crystal key interface, the first 2B + D interface, the first USB interface, the first 100M Ethernet interface, the audio circuit, the DSP circuit, the RS422 interface and the first RS232 interface; the liquid crystal key interface is internally provided with a liquid crystal driver, a touch screen driver and a key driver, and is externally connected with the touch screen and the keys; the first 2B + D interface is externally connected with a main control interface unit; the audio circuit is externally connected with a microphone and a sound box, the DSP circuit is externally connected with a recorder, and the RS422 interface is externally connected with a printer; the first power management module converts DC13.8V power provided by the host computer into DC3.3V power and supplies power to the operation terminal.
As a further description of the digital wireless train dispatching desk for railway of the present invention, preferably, the first CPU employs an ARM Cortex-A8 kernel microprocessor.
As a further description of the digital wireless train dispatching desk for railways, preferably, the main control interface unit includes a second CPU, a 2M ring network interface, a second 2B + D interface, a second 100M ethernet interface, a first SERDES interface, a second USB interface, a second RS232 interface, and a second power management module; the second CPU is respectively connected with the 2M ring network interface, the second 2B + D interface, the second 100M Ethernet interface, the first SERDES interface, the second USB interface and the second RS232 interface; an uplink module and a downlink module are arranged in the 2M ring network interface, and the 2M ring network interface is externally connected with a 2M ring network; the second 2B + D interface is externally connected with an operation terminal; the second 100M Ethernet interface is externally connected with a monitoring switchboard; the first SERDES interface is externally connected with a key display unit; the second power management module converts DC13.8V power into DC3.3V power and supplies power to the main control interface unit.
As a further description of the digital wireless train dispatching desk for railways, preferably, the second CPU employs an ARM core microprocessor and an FPGA chip.
As a further description of the digital wireless train dispatching desk for railways, preferably, the key display unit comprises a third CPU, a second SERDES interface, a liquid crystal driving circuit, a key detection circuit and a third power management module; the main control interface unit is connected with a third CPU through a second SERDES interface, the third CPU is respectively connected with a liquid crystal driving circuit and a key detection circuit, the liquid crystal driving circuit is connected with a liquid crystal module, and the key detection circuit is connected with keys; the third power management module converts DC13.8V power into DC3.3V power and supplies power to the key display unit.
As a further description of the digital wireless train dispatching desk for railway, the third CPU preferably uses an ARM Cortex-M3 chip.
As a further description of the digital wireless train dispatching desk for railways, the power supply unit preferably comprises an AC 220V-DC13.8V power supply module, a DC-48V-DC13.8V power supply module, a power supply control circuit and a power supply monitoring circuit; the AC 220V-DC13.8V power module is externally connected with an AC220V power supply for supplying power and is connected with the power control circuit and the power monitoring circuit; the DC-48V to DC13.8V power supply module is externally connected with a DC-48V power supply for supplying power and is connected with the power supply control circuit and the power supply monitoring circuit.
As a further description of the digital wireless train dispatching desk for railway of the present invention, N is preferably less than or equal to 10.
The dispatching desk adopts a 2M ring networking communication technology, so that a plurality of main control interface units of a host computer are connected with a plurality of operation terminals and are in the same networking, and an embedded processing technology is adopted to construct a hardware framework of the railway digital radio train dispatching desk, so that the requirements of the railway digital radio train dispatching desk on dispatching cooperative command work of communication equipment such as a station radio station, a locomotive radio station, a portable desk and the like in a system are met. The requirement of smooth transition from railway analog communication to digital communication is met.
The dispatching desk is based on modular design, and the operation terminal, the main control interface unit and the key display unit all adopt ARM processors, so that the railway digital wireless train dispatching desk has a hardware architecture with high cost performance, strong compatibility and expandability, and can realize the function of centralized management of a plurality of road offices.
The dispatching desk of the invention is based on 2B + D technology, so that the host and a plurality of operation terminals can communicate with each other, the synchronous transmission function of the voice data and the control signaling data of the operation terminals of the railway digital wireless train dispatching desk and the host is realized, the working efficiency is improved, the anti-interference capability of the voice transmission is improved, and the communication quality is improved.
Drawings
FIG. 1 is a functional block diagram of a digital wireless train dispatching desk for railway of the present invention;
FIG. 2 is a functional block diagram of the operator terminal of the present invention;
FIG. 3 is a functional block diagram of a master interface unit of the present invention;
FIG. 4 is a schematic block diagram of a key display unit of the present invention;
fig. 5 is a schematic block diagram of the power supply unit of the present invention.
Detailed Description
To further understand the structure, characteristics and other objects of the present invention, the following detailed description is given with reference to the accompanying preferred embodiments, which are only used to illustrate the technical solutions of the present invention and are not to limit the present invention.
As shown in fig. 1, fig. 1 is a functional module schematic diagram of a digital wireless train dispatching desk for railway of the present invention; the digital wireless train dispatching desk comprises a host and N operating terminals 1, wherein the host is designed in a plug-in box type structure, 16 slots are formed in one host, and management of station equipment in 10 dispatching sections can be supported at most, so that N is less than or equal to 10; the host comprises N main control interface units 2 (10 main control interface units in the figure), a key display unit 3 and a power supply unit 4, wherein the power supply unit adopts a hot backup mode. The key display unit 3 is connected with the N main control interface units 2, and the main control interface units 2 are connected with the 2M ring network and used for realizing the function of centralized management of the dispatching desk on the equipment managed by the multiple road offices; the power supply unit 4 supplies power to the N main control interface units 2 and the key display unit 3; the N main control interface units 2 are connected with the N operation terminals 1, and the main control interface units 2 and the operation terminals 1 are communicated through 2B + D, namely one host can be connected with ten operation terminals, so that the function of synchronous transmission of voice data and control signaling data of the operation terminals and the host is realized, the anti-interference capability of voice transmission is improved, and the conversation quality is improved; each operation terminal 1 is respectively connected with a recorder 5, a printer 6, a microphone 7 and a sound box 8, and is used for realizing the processing of the dispatching call conversation function in the dispatching section.
The digital wireless train dispatching desk has a hardware architecture with high cost performance, modularization, strong compatibility and expandability. The digital wireless train dispatching desk adopts hardware architecture of an operation terminal and a host. The operation terminal adopts a 10-inch liquid crystal touch screen and a high-speed and reliable embedded operation system to realize a friendly man-machine interaction interface and realize the centralized management function of equipment governed by a plurality of road offices; the management of station radio station registration and deregistration data information is realized; the locomotive radio station registration and deregistered data display are realized, the information such as the train number, the locomotive number and the like of the running train in the district is updated in time, and the working efficiency is improved. The dispatching desk adopts a 2B + D communication mode, realizes the data exchange function of a plurality of operation terminals and the host, and improves the communication efficiency.
The digital wireless train dispatching desk adopts a 2M ring network communication technology, and the 2M ring network adopts an E1 interface optical fiber digital communication technology, so that the high-speed, stable and reliable data communication requirement between the dispatching desk and a station radio station is realized. The optical fiber communication has the advantages of large transmission capacity, low loss, high fidelity, good confidentiality and the like, and is an ideal wired network communication mode.
Operation terminal
Referring to fig. 2, fig. 2 is a schematic block diagram of an operation terminal according to the present invention; the operation terminal 1 comprises a first CPU11, a liquid crystal key interface 12, a first 2B + D interface 13, a first USB interface 14, a first 100M ethernet interface 15, an audio circuit 16, a DSP circuit 17, an RS422 interface 18, a first RS232 interface 19, a first power management module 110 and a FLASH chip; the first CPU11 is connected to the liquid crystal key interface 12, the first 2B + D interface 13, the first USB interface 14, the first 100M ethernet interface 15, the audio circuit 16, the DSP circuit 17, the RS422 interface 18, the first RS232 interface 19, and the FLASH chip, respectively, and is configured to implement a dispatch call session function process of the operation terminal; the first CPU11 is constructed by adopting an ARM Cortex-A8 kernel microprocessor, supports a Linux operating system, and supports RAM space with 512M bytes and FLASH with 1G bytes.
1) The liquid crystal key interface 12 is internally provided with a liquid crystal driver, a touch screen driver and a key driver and is used for externally connecting a touch screen and keys, and a 10-inch liquid crystal touch screen and a press-resistant silica gel key are adopted to realize calling operation and call state display functions of a dispatching desk; the editing and displaying functions of the scheduling command and the scheduling notice are realized; the functions of inquiring and setting parameters of the dispatching station are realized; and the function of playing photos and videos is realized.
2) The first 2B + D interface 13 is connected to the first CPU11 through the 2B + D chipset, the first 2B + D interface 13 is externally connected to the main control interface unit 2, and based on the 2B + D communication technology, 2B is two paths of voice data, one path of voice data is received, the other path of voice data is sent, and D is signaling data, which is used for realizing data communication between the operation terminal and the host.
3) The first USB interface 14 is used to implement a function of downloading data stored in the operation terminal at a high speed by the computer.
4) The first 100M ethernet interface 15 is a reserved ethernet interface, and can implement data communication between the operation terminal and the monitoring switchboard.
5) The audio circuit 16 is externally connected with a microphone 7 and a sound box 8, the DSP circuit 17 is externally connected with the recorder 5, and the audio amplifier circuit and the DSP digital-analog and analog-digital conversion chip circuit are adopted to realize the voice digital processing function in the communication between the dispatching desk and other equipment. The digital-to-analog conversion and analog-to-digital conversion of voice signals are realized by adopting a DSP digital-to-analog conversion chip technology, and the digital transmission of railway wireless train dispatching wired communication is realized by adopting 2M looped network optical fiber digital communication. The voice digital transmission improves the anti-interference capability of voice signal transmission and improves the definition of voice signal restoration.
6) The RS422 interface 18 is externally connected with the printer 6 to realize the printing function of the scheduling command.
7) The first RS232 interface 19 is a test interface of the operation terminal, and realizes an operation terminal overhaul test function.
8) The first power management module 110 converts DC13.8V power provided from the host into DC3.3V power for supplying power to the operation terminal 1.
The dispatching desk host is a central hub of the dispatching desk, is responsible for connecting each constituent unit/module of the equipment, and communicates with each constituent unit/module according to a specified protocol interface; analyzing and processing video, voice and data information transmitted by the communication link, and distributing the information to each module according to a protocol for processing and displaying; responding to an operation command of the operation terminal, and the like.
Master control interface unit
Referring to fig. 3, fig. 3 is a schematic block diagram of a main control interface unit according to the present invention; the main control interface unit 2 comprises a second CPU21, a 2M ring network interface 22, a second 2B + D interface 23, a second 100M ethernet interface 24, a first SERDES interface 25, a second USB interface 26, a second RS232 interface 27, a second power management module 28, a FLASH, an SDRAM and an LED; the second CPU21 is connected to the 2M ring network interface 22, the second 2B + D interface 23, the second 100M ethernet interface 24, the first SERDES interface 25, the second USB interface 26, the second RS232 interface 27, the FLASH, the SDRAM, and the LED, respectively, and is configured to implement the dispatch call session function processing of the host. The second CPU21 is constructed based on an ARM kernel microprocessor and an FPGA programmable logic gate array chip, supports an LINUX operating system, has the highest running dominant frequency of 1GHz, and is very suitable for application fields of industrial control, multimedia terminals and the like; the method is used for realizing time slot processing of 2M ring networking, functional processing of 2B + D voice data and control signaling data transmission and Ethernet interface data processing.
1) The 2M ring network interface 22 is internally provided with an uplink module and a downlink module, and is also provided with another 2M ring network interface, the 2M ring network interface 22 is externally connected with a 2M ring network, and the 2M ring network interface is used for realizing data communication between the dispatching desk and the station radio station based on a 2M ring network optical fiber communication technology.
2) The second 2B + D interface 23 is externally connected to the operation terminal 1, and is used for realizing data communication between the host of the dispatching desk and the operation terminal based on a 2B + D communication technology.
3) The second 100M ethernet interface 24 is externally connected to the monitoring switchboard, and is used for realizing data communication between the dispatching desk and the monitoring switchboard.
4) The first SERDES interface 25 is externally connected to the key display unit 3, and is used for implementing the dispatch call conversation function processing of the host.
5) The second USB interface 26 is based on a USB interface and is used to implement a function of downloading data stored by the host computer at a high speed.
6) The second RS232 interface 27 is a test interface of the host, and is used for implementing a maintenance test function of the host.
7) The second power management module 28 converts DC13.8V power into DC3.3V power for powering the main control interface unit 2.
8) And a high-capacity FLASH chip is adopted to realize the storage of communication data of the dispatching desk and the storage of a working log.
Key display unit
Referring to fig. 4, fig. 4 is a schematic block diagram of a key display unit according to the present invention; the key display unit 3 comprises a third CPU31, a second SERDES interface 32, a liquid crystal driving circuit 33, a key detection circuit 34 and a third power management module 35; the main control interface unit 2 is connected with a third CPU31 through a second SERDES32 interface, the third CPU31 is connected with a liquid crystal driving circuit 33 and a key detection circuit 34, the liquid crystal driving circuit 33 is connected with a liquid crystal module, and the functions of transmitting and receiving state display of each communication channel of the host and host parameter setting menu display are realized by adopting an OCM240160 liquid crystal module. The host parameters include real-time, real-time power supply voltage, real-time power supply current, real-time call status, and the like. The key detection circuit 34 is connected with the keys, and adopts a press-resistant silica gel key to realize the function of setting host parameters. The third power management module 35 converts DC13.8V power into DC3.3V power for powering the key display unit 3. The third CPU31 adopts ARM Cortex-M3 chip for realizing the processing of man-machine operation display and the control of each functional unit of the key display unit.
Power supply unit
Referring to fig. 5, fig. 5 is a schematic block diagram of a power supply unit according to the present invention; the power supply unit 4 comprises an AC 220V-DC13.8V power supply module 41, a DC-48V-DC13.8V power supply module 42, a power supply control circuit 43 and a power supply monitoring circuit 44; the AC 220V-DC13.8V power module 41 is externally connected with an AC220V power supply and is connected with the power control circuit 43 and the power monitoring circuit 44 to realize power supply and power monitoring of the alternating current conversion equipment; the DC-48V to DC13.8V power module 42 is externally connected with a DC-48V power supply for supplying power, and is connected with the power control circuit 43 and the power monitoring circuit 44 for realizing power supply and power monitoring of the DC conversion device.
The dispatching desk can be powered by an AC220V power supply or a DC-48V power supply, and the power supply unit adopts two power supply modules, namely an AC 220V-DC13.8V stabilized power supply module and a DC-48V-DC13.8V stabilized power supply module, and supplies DC13.8V power to other functional units. The power supply unit adopts a power supply control circuit to realize the control of the output power supply channel. And a power supply monitoring circuit is adopted to monitor whether the input power supply is normal in real time, alarm is given if the input power supply is abnormal, and power supply for other units is stopped.
Dispatcher station function
Dispatching desk management function
And the digital wireless train dispatching station manages the equipment in the managed dispatching interval.
The dispatching desk adopts a mode of marking station names to realize the management of station radio station registration and deregistered data information, and the dispatching operation terminal 1 can display a list of station radio stations and inter-area radio stations and dynamically display a list of locomotive radio stations and portable stations in each station district on a touch screen through a liquid crystal key interface 12.
The dispatching desk adopts a locomotive train number numbering mode to realize locomotive radio station registration, registered data display and timely update information such as train numbers, locomotive numbers and the like of running trains in the jurisdiction, and the information is stored in the FLASH of the operation terminal 1 and the host.
(II) dispatch calling function
1) Dispatching calling station
The dispatcher can select a station radio station to be called in the station information list, click a 'call' button, send a call signaling and carry out corresponding calling. After entering the conversation state, the user can use the microphone 7 and the speaker 8 to make a conversation.
The dispatcher station may receive or reject the call request from the station radio. The liquid crystal screen of the dispatching desk operation terminal 1 and the liquid crystal screen of the host simultaneously display incoming calls of the station radio station, simultaneously display the names of incoming stations, calling types and other information, and the sound box 8 has corresponding sound prompts.
In the process of communication, the liquid crystal screen of the dispatching desk operation terminal 1 and the liquid crystal screen of the host simultaneously display corresponding communication states.
2) Dispatching calling locomotive
The dispatcher can call the corresponding locomotive driver according to the number of the train or the locomotive number and carry out one-to-one communication. Or all locomotive radio stations near a certain locomotive station can be group called, and one-to-many conversation is carried out.
The dispatcher station may receive or reject the call request from the locomotive station. The station radio station forwards the locomotive radio station call dispatching desk, the liquid crystal screen of the dispatching desk operation terminal 1 and the liquid crystal screen of the host simultaneously display the locomotive radio station incoming call, simultaneously display the number of the locomotive and the number of the locomotive of the incoming call, the call type and other information, and the sound box has corresponding sound prompt.
In the process of communication, the liquid crystal screen of the dispatching desk operation terminal 1 and the liquid crystal screen of the host simultaneously display corresponding communication states.
3) Portable dispatching calling station
The dispatcher can forward and call a portable station near the station radio station through the station radio station and carry out one-to-one conversation.
In the process of communication, the liquid crystal screen of the dispatching desk operation terminal 1 and the liquid crystal screen of the host simultaneously display corresponding communication states.
(III) Call recording function
All the above communication processes are recorded by the digital voice recorder, namely the recorder 5, and a user can inquire the communication record recorded on the recorder in a time inquiry mode and the like and play the communication record through the recorder.
(IV) scheduling advertisement
The dispatcher edits the dispatching notice through a touch screen of the dispatching desk operation terminal 1, and forwards the dispatching notice to all locomotive radio stations through all station radio stations in the control system.
(V) vehicle dispatching command function
The dispatcher can edit the dispatching command through the touch screen of the dispatching desk operation terminal 1 and control the corresponding station radio station to forward the dispatching command to the corresponding locomotive radio station. And receiving the automatic response and manual sign-in information sent back by the locomotive radio station. The dispatching command information comprises dispatching command information, such as dispatching command, driving certificate, dispatching job notice, dispatching request, train route advance notice and the like.
(VI) Driving scheduling Command printing function
The transmitted scheduling command can be selected for printing by the menu operation of the scheduling console operation terminal 1.
(VII) receiving video picture display function of dispatching desk
And according to the driving scheduling requirement, the scheduling console sends an uploading field picture or video command to other terminal equipment in the system. The dispatching desk receives pictures and video files uploaded by other terminal equipment and can play the pictures and the video files on a liquid crystal display screen of the operation terminal 1.
(eighth) dispatching receiving monitoring switchboard monitoring function
The digital wireless train dispatching desk has the functions of self-checking, fault warning and the like, and the first RS232 interface 19 of the operation terminal 1 and the second RS232 interface 27 of the host are test interfaces to receive remote monitoring, inquiry and setting of a network management system. The dispatching desk can forward the communication between the monitoring switchboard and the station radio. The method comprises the steps of monitoring the inquiry of a switchboard, setting the parameters of a station radio station, sending alarm information by the station radio station and the like.
(nine) recording/reading function
The computer reads and clears the scheduling command and the work log data by the first USB interface 14 of the operation terminal 1. The host communication data and the work log data are read and cleared by the second USB interface 26 of the host. The computer can analyze and print the read data.
It should be noted that the above summary and the detailed description are intended to demonstrate the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the scope of the present invention. Various modifications, equivalent substitutions, or improvements may be made by those skilled in the art within the spirit and principles of the invention. The scope of the invention is to be determined by the appended claims.
Claims (9)
1. A railway digital wireless train dispatching desk is characterized by comprising a host and N operation terminals (1); wherein,
the host comprises N main control interface units (2), a key display unit (3) and a power supply unit (4); wherein,
the key display unit (3) is connected with the N main control interface units (2), and the main control interface units (2) are connected with the 2M ring network; the power supply unit (4) supplies power to the N main control interface units (2) and the key display unit (3);
the master control interface unit (2) is connected with the operation terminal (1), and the master control interface unit (2) is communicated with the operation terminal (1) through a 2B + D interface;
each operation terminal (1) is respectively connected with a recorder (5), a printer (6), a microphone (7) and a sound box (8).
2. The railway digital wireless train dispatching desk of claim 1, wherein the operation terminal (1) comprises a first CPU (11), a liquid crystal key interface (12), a first 2B + D interface (13), a first USB interface (14), a first 100M Ethernet interface (15), an audio circuit (16), a DSP circuit (17), an RS422 interface (18), a first RS232 interface (19) and a first power management module (110); wherein,
the first CPU (11) is respectively connected with the liquid crystal key interface (12), the first 2B + D interface (13), the first USB interface (14), the first 100M Ethernet interface (15), the audio circuit (16), the DSP circuit (17), the RS422 interface (18) and the first RS232 interface (19);
the liquid crystal key interface (12) is internally provided with a liquid crystal driver, a touch screen driver and a key driver, and the liquid crystal key interface (12) is externally connected with the touch screen and the keys; the first 2B + D interface (13) is externally connected with the main control interface unit (2); the audio circuit (16) is externally connected with a microphone (7) and a sound box (8), the DSP circuit (17) is externally connected with a recorder (5), and the RS422 interface (18) is externally connected with a printer (6);
the first power management module (110) converts DC13.8V power provided by the host computer into DC3.3V power and supplies power to the operation terminal (1).
3. A railway digital radio train dispatching station according to claim 2, characterized in that the first CPU (11) employs an arm port x-A8 core microprocessor.
4. The railway digital wireless train dispatching desk of claim 1, wherein the master control interface unit (2) comprises a second CPU (21), a 2M ring network interface (22), a second 2B + D interface (23), a second 100M ethernet interface (24), a first SERDES interface (25), a second USB interface (26), a second RS232 interface (27) and a second power management module (28); wherein,
the second CPU (21) is respectively connected with the 2M ring network interface (22), the second 2B + D interface (23), the second 100M Ethernet interface (24), the first SERDES interface (25), the second USB interface (26) and the second RS232 interface (27);
an uplink module and a downlink module are arranged in the 2M ring network interface (22), and the 2M ring network interface (22) is externally connected with a 2M ring network; the second 2B + D interface (23) is externally connected with the operation terminal (1); a second 100M Ethernet interface (24) is externally connected with a monitoring switchboard; the first SERDES interface (25) is externally connected with a key display unit (3);
the second power management module (28) converts DC13.8V power to DC3.3V power and provides power to the master interface unit (2).
5. The railway digital wireless train dispatching desk as claimed in claim 4, wherein the second CPU (21) adopts an ARM core microprocessor and an FPGA programmable logic gate array chip.
6. The railway digital radio train dispatching desk of claim 1, wherein the key display unit (3) comprises a third CPU (31), a second SERDES interface (32), a liquid crystal driving circuit (33), a key detection circuit (34) and a third power management module (35); the main control interface unit (2) is connected with a third CPU (31) through a second SERDES (32) interface, the third CPU (31) is respectively connected with a liquid crystal driving circuit (33) and a key detection circuit (34), the liquid crystal driving circuit (33) is connected with a liquid crystal module, and the key detection circuit (34) is connected with a key; the third power management module (35) converts DC13.8V power into DC3.3V power and supplies power to the key display unit (3).
7. The railway digital radio train dispatching desk as claimed in claim 6, wherein the third CPU (31) employs an ARMCortex-M3 chip.
8. The railway digital wireless train dispatching desk of claim 1, wherein the power supply unit (4) comprises an AC220V to DC13.8V power supply module (41), a DC-48V to DC13.8V power supply module (42), a power supply control circuit (43) and a power supply monitoring circuit (44); wherein,
the AC 220V-DC13.8V power supply module (41) is externally connected with an AC220V power supply for supplying power and is connected with the power control circuit (43) and the power monitoring circuit (44);
the DC-48V to DC13.8V power supply module (42) is externally connected with a DC-48V power supply for supplying power and is connected with the power supply control circuit (43) and the power supply monitoring circuit (44).
9. The railway digital wireless train dispatching station of claim 1, wherein N is less than or equal to 10.
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| CN201810023153.6A CN108163017A (en) | 2018-01-10 | 2018-01-10 | A kind of railway digital train dispatch radio communication dispatching desk |
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| CN201810023153.6A CN108163017A (en) | 2018-01-10 | 2018-01-10 | A kind of railway digital train dispatch radio communication dispatching desk |
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