CN116723087A - Switching method of signal system and external interface of main and standby control center - Google Patents

Switching method of signal system and external interface of main and standby control center Download PDF

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Publication number
CN116723087A
CN116723087A CN202310859843.6A CN202310859843A CN116723087A CN 116723087 A CN116723087 A CN 116723087A CN 202310859843 A CN202310859843 A CN 202310859843A CN 116723087 A CN116723087 A CN 116723087A
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China
Prior art keywords
control center
interface
main control
standby
communication
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Pending
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CN202310859843.6A
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Chinese (zh)
Inventor
张扬
黄嘉�
姚文韬
林全青
李向荣
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Chengdu Traffic Control Track Technology Co ltd
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Chengdu Traffic Control Track Technology Co ltd
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Priority to CN202310859843.6A priority Critical patent/CN116723087A/en
Publication of CN116723087A publication Critical patent/CN116723087A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The invention discloses a switching method of a signal system of a main and standby control center and an external interface, which comprises the following steps: when all modules in the communication front-end processor in the signal system of the main control center or the standby control center are in fault, the corresponding modules of the communication front-end processor in the signal system of the standby control center or the main control center which is in normal operation can be automatically switched so as to realize the communication between the signal system and an external interface machine; when the external interface machine which communicates with the communication front-end processor of the main control center or the standby control center fails, the corresponding interface machine can be switched between different communication front-end processors of the standby control center or the main control center so as to ensure that the signal system communicates with the corresponding external interface machine which operates normally. The invention improves the redundancy of the external interface of the full-automatic operation system and obviously reduces the influence on the system operation and the external interface of the signal system after the failure of the main control center equipment.

Description

Switching method of signal system and external interface of main and standby control center
Technical Field
The invention relates to the technical field of transportation, in particular to a switching method of a signal system of a main and standby control center and an external interface.
Background
In the full-automatic operation system, a signal system transmits and receives information related to train operation through a communication front-end processor, a PIS (passenger information system), a PA (broadcast system), an ISCS (integrated monitoring system), a CLOCK system and the like.
If the communication front-end processor fails, the external interface cannot acquire train operation information of the signal system, so that faults such as station broadcasting or station guide screen display errors are caused, and passenger riding experience is affected.
Disclosure of Invention
In view of this, the invention provides a method for switching between the signal system of the primary and secondary control centers and the external interface, and proposes a scheme for redundancy between the primary control center of the signal system and the secondary control center system, so as to ensure that redundancy between the primary control center of the fully-automatic signal system and the secondary control center and the external interface is realized under the existing signal system architecture, and remarkably improve the stability of system operation and the reliability of the external interface.
The invention discloses a new switching method of a main control center signal system and an external interface, which comprises the following steps: when all modules in the communication front-end processor in the signal system of the main control center are failed, the corresponding modules of the communication front-end processor in the signal system of the standby control center can be automatically switched to realize that the signal system can communicate with an external interface machine through the communication front-end processor of the standby control center;
or when all modules in the communication front-end processor in the signal system of the standby control center fail, the modules can be automatically switched to corresponding modules of the communication front-end processor in the signal system of the main control center; the signal system can communicate with an external interface machine through a communication front-end processor of the main control center;
when the external interface machine which communicates with the communication front-end processor of the main control center fails, the corresponding interface machine can be switched between different communication front-end processors of the main control center so as to ensure that the signal system communicates with the corresponding external interface machine which normally operates through the communication front-end processor of the main control center;
or when the external interface machine which communicates with the communication front-end processor of the standby control center fails, the corresponding interface machine can be switched between different communication front-end processors of the standby control center so as to ensure that the signal system communicates with the corresponding external interface machine which normally operates through the communication front-end processor of the standby control center.
Further, the active control center and the standby control center each comprise at least two communication front-end processors; different communication front-end processors can be switched mutually;
the main control center and the standby control center both comprise a plurality of module groups for external interface service; each service module group comprises a passenger information system, a broadcasting system, a comprehensive monitoring system, a clock system and a wireless system communication system;
when the signal system operates normally, the signal system communicates with the passenger information system, the broadcasting system, the comprehensive monitoring system, the clock system and the wireless system of the main control center and/or the standby control center through at least one communication front-end processor of the main control center and/or the standby control center.
Further, each communication front-end processor comprises a passenger information system interface module, a broadcasting system interface module, a comprehensive monitoring system interface module, a clock system interface module and a wireless system interface module which are respectively connected with the passenger information system, the broadcasting system, the comprehensive monitoring system, the clock system and the wireless communication system in a one-to-one correspondence manner;
the external interface machine comprises a passenger information system interface machine, a broadcasting system interface machine, a comprehensive monitoring system interface machine, a clock system interface machine and a wireless system interface machine which are respectively connected with the passenger information system interface module, the broadcasting system interface module, the comprehensive monitoring system interface module, the clock system interface module and the wireless system interface module in one-to-one correspondence;
when the signal system normally operates, the signal system communicates with at least one corresponding passenger information system, broadcasting system, comprehensive monitoring system, clock system and wireless communication system through at least one communication front-end processor of the main control center and/or the standby control center.
Further, the internal redundancy mode of the passenger information system interface machine is as follows:
one passenger information system interface machine corresponding to the main control center is taken as the highest priority in the normal state, and when the passenger information system interface machine fails, the passenger information system interface machine is supplemented to the other passenger information system interface machine corresponding to the main control center; when the passenger information system interface machine corresponding to the main control center fails, automatically switching to at least one passenger information system interface machine corresponding to the standby control center to communicate with the signal system; when the connection between the passenger information system interface machine corresponding to the main control center and the signal system is recovered to be normal, the intra-pair communication is automatically switched to at least one passenger information system interface machine corresponding to the main control center.
Further, the external redundancy mode of the signal system and passenger information system interface machine is as follows:
all communication front-end processors of the signal system work outwards in parallel in the main control center and the standby control center, and simultaneously data are sent to all interface machines corresponding to the passenger information system; and after receiving the data, all interface machines corresponding to the passenger information system internally distinguish the main and the standby.
Further, the internal redundancy mode of the integrated monitoring system interface machine is as follows:
one comprehensive monitoring system interface machine corresponding to the main control center is used as the highest priority, and when the comprehensive monitoring system interface machine fails, the comprehensive monitoring system interface machine is automatically switched to the other comprehensive monitoring system interface machine corresponding to the main control center to communicate with the signal system;
the external redundancy mode of the interface machine of the signal system and the integrated monitoring system is as follows:
all front-end processors of the signal system corresponding to the interface machines of the comprehensive monitoring system work outwards in parallel in the main control center and the standby control center, and simultaneously data are sent to all the interface machines corresponding to the comprehensive monitoring system; and after receiving the data, all the interface machines corresponding to the comprehensive monitoring system internally distinguish the main and the standby.
Further, the internal redundancy mode of the clock system interface machine is as follows:
at least two interface machines of the clock system are respectively connected with the communication master clock, and when the clock system interface machine of the main control center fails, any one of the clock system interface machines of the standby control center is switched to continue to operate; if all the interface machines in the clock system interface machine of the main control center are recovered to be normal, the clock system interface machine is switched back to the main control center to continue to operate.
Further, the external redundancy mode of the signal system and the clock system interface machine is as follows:
when one clock system interface machine corresponding to the main control center is used as a host machine to acquire clock information with a communication master clock in a normal state, the clock system interface machine performs data interaction with all communication front-end processors of the main control center, and maintains a communication link with one of the communication front-end processors; when one of the communication front-end processors fails, the standby link of the other communication front-end processor can be used for continuing data interaction; when the clock system interface module or the clock system of the communication front-end processor of the main control center is completely failed, all the communication front-end processors of the standby control center are started to communicate with the corresponding clock system interface computers and transmit and receive data.
Further, the signal system timing mechanism of the active control center and the standby control center is as follows:
the master control center and the standby control center only have 1 communication front-end processor as a master computer to calibrate with a clock system, and the rest communication front-end processors in standby state and the current front-end equipment in master state are used for calibrating, and the master control center and the application server of the standby control center are used for calibrating with the current internal master communication front-end processor.
Further, the internal redundancy mode of the wireless system interface machine is as follows:
one wireless system interface machine corresponding to the main control center is the highest priority in a normal state, and is supplemented to the other wireless system interface corresponding to the main control center when the wireless system interface machine fails; when all wireless system interface machines corresponding to the main control center are failed, the interface machines corresponding to the standby control center are automatically switched to communicate with the signal system; when all wireless system interface machines corresponding to the main control center are connected with the signal system and recovered to be normal, the main module for internal communication still keeps running in the standby control center;
the external redundancy modes of the signal system and the wireless system are as follows:
all front-end processors of the signal system corresponding to the interface machines of the wireless system work outwards in parallel in the main control center and the standby control center, and simultaneously data are sent to all the interface machines corresponding to the wireless system; and after receiving the data, all interface machines corresponding to the wireless system internally distinguish the main and the standby.
Due to the adoption of the technical scheme, the invention has the following advantages: when the communication front-end processor of the main control center fails, the signal system can be seamlessly switched to the communication front-end processor of the standby control center to continuously maintain the system to run; the redundancy of the external interfaces of the full-automatic system is improved, and the influence on the system operation and the external interfaces of the signal system caused by the failure of the main control center equipment is obviously reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the embodiments of the present invention, and other drawings may be obtained according to these drawings for those skilled in the art.
Fig. 1 is a schematic diagram of a frame corresponding to a method for switching between a signal system of a primary and a secondary control center and an external interface according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a signal system and PIS port according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a signaling system and ISCS interface according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an interface between a signal system and a clock system according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating an interface between a signal system and a communication wireless system according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein it is apparent that the examples described are only some, but not all, of the examples of the present invention. All other embodiments obtained by those skilled in the art are intended to fall within the scope of the embodiments of the present invention.
The redundancy mechanism of the communication front-end processor of the main and standby control centers is as follows:
because the communication front-end processor has more constituent modules, interfaces are needed to be carried out between the center and the outside, redundancy switching cannot be carried out according to the health degree, redundancy is needed to be carried out according to a complementary mode, and the signal system is preferentially ensured to be communicated with the external interfaces at the main control center.
The communication front-end processor is redundant to the hot standby in the signal subsystem, and only the main communication front-end processor module can send data internally; the external interface system is not distinguished from the main system and the standby system, and the sending and receiving of the interface data can be simultaneously carried out.
The single-center internal communication front-end processor can be automatically switched in the same center range according to the connection state of the external interface module, and the main control center communication front-end processor can be automatically switched to the corresponding module of the communication front-end processor of the other center after all the modules of the main control center communication front-end processor are failed.
The external interface connection service can be automatically switched among the four redundant services of the main and standby centers according to the sequence under the automatic condition, for example, after the module of the center 1 fails or the external interface equipment fails, the external interface connection service can be automatically switched to the module of the center 2 to continue to communicate with the external interface, and so on. The fault of the external interface module of the single system does not affect the external interface modules of other systems, such as the fault of the PA communication module, and does not affect the PIS communication module of the machine.
Referring to fig. 1, the present invention provides an embodiment of a method for switching between a signal system of a primary and a secondary control center and an external interface, which aims to implement: when the communication front-end processor double-system modules are switched to the standby control center, the external interfaces comprise PIS (passenger information system), PA (broadcast system), ISCS (integrated monitoring system), clock system and wireless system, and the interface professional server can automatically switch to the standby control center to continue running along with the switching of the communication front-end processor modules.
The embodiment comprises a signal system and PIS main-standby center interface redundancy mode, a signal system and ISCS main-standby center interface redundancy mode, a signal system and clock main-standby center interface redundancy mode and a signal system and wireless system main-standby center interface redundancy mode. The main control center and the standby control center respectively comprise 2 service module groups and 2 communication front-end processors, wherein the service module groups are a passenger information system, a broadcasting system, a comprehensive monitoring system, a clock system and a wireless system communication system; the embodiment of the invention is specifically described by taking the interface module in each communication front-end processor as a passenger information system interface module, a broadcasting system interface module, a comprehensive monitoring system interface module, a clock system interface module and a wireless system interface module as an example.
The redundant mode of the interface between the signal system and the PIS main and standby centers is specifically as follows:
the signal system and PIS interface modes are shown in fig. 2, and when the signal system operates normally, the communication front-end processor-main 1/communication front-end processor-main 2 is respectively communicated with the master control center PIS interface processor-main 1/PIS interface processor-main 2. The communication front-end processor and the PIS can realize automatic switching in a main and standby control center, and 4 interface devices of the PIS system are hot standby.
When the master control center communication front-end processor PIS module or PIS interface machine is completely failed, the standby control center communication front-end processor-standby 1/communication front-end processor-standby 2 is started to communicate with the PIS interface machine-standby 1/PIS interface machine-standby 2 and send and receive data, and other interface modules are not affected.
The internal redundancy mode of the PIS interface machine is as follows:
the interface machine-main 1 is the highest priority in the normal state, and is added to the interface machine-main 2 when the host 1 fails. When the PIS interface of the main control center fails, the PIS interface is automatically switched to the interface machine-standby 1 and the interface machine-standby 2 to communicate with the signal system. When the connection between the main control center interface machine and the signal system is recovered to be normal, the internal communication main module is automatically switched back to the main control center interface machine-main 1/main 2.
The external redundancy mode of the signal interface machine and the PIS is as follows:
in the main and standby control center, 4 communication front-end processors of the signal system work outwards in parallel, and simultaneously send data to 4 interface machines of the passenger information system; after receiving the data, the 4 interface machines of the passenger information system internally distinguish the main and the standby.
The redundancy mode of the interface between the signal system and the ISCS main and standby centers is specifically as follows:
the signaling system and the ISCS interface are as shown in fig. 3, and the ISCS normally operates by using the communication front-end processor-main 1/communication front-end processor-main 2 to communicate with the master control center ISCS interface processor-main 1/ISCS interface processor-main 2 respectively, and the communication front-end processor and the ISCS can send and receive data at the same time in the master/slave control center.
The internal redundancy mode of the ISCS interface machine is as follows:
the interface machine-main 1 is a host in a normal state, and is switched to the interface machine-main 2 when the host 1 fails. When the redundant connection between the main control center and the signal system fails, the interface machine-standby 1 and the interface machine-standby 2 are automatically switched to communicate with the signal system.
The external redundancy mode of the signal interface machine and the ISCS is as follows:
in the main and standby control center, 4 interface machines of the signal system work outwards in parallel, and data are sent to 4 interface machines of the comprehensive monitoring system; and after receiving the data, the comprehensive monitoring 4 interface machines internally distinguish the main interfaces from the standby interfaces.
In the main and standby control center, 4 interface machines of the ISCS work outwards in parallel at the same time, and data are sent to 4 communication front-end processors of the signal system at the same time; after receiving the data, the 4 interface machines of the signal system internally distinguish the main and the standby.
The redundant mode of the interface between the signal system and the clock master and slave centers is specifically as follows:
the interface mode of the signal system and the CLK system is shown in FIG. 4, and the CLK system is communicated with the master center CLK interface machine-master 1 by using a communication front-end machine-master 1 when the CLK system is in normal operation. The communication front-end processor and the clock system can realize automatic switching in the main and standby control center, and 2 interface devices of the clock system are mutually redundant.
The internal redundancy of CLK (clock system) interface machine is as follows:
the two interface machines of the clock system are respectively connected with the communication master clock, and when the CLK interface machine of the main control center fails, the interface machine is switched to the standby control center-standby 1 to continue operation. If the CLK interface machine-main 1/main 2 fault is recovered, the CLK is switched back to the main control center to continue operation.
The external redundancy mode of the signal interface machine and the CLK is as follows:
the interface machine-main 1 obtains clock information for the host and the communication master clock in a normal state, and performs data interaction with the communication front-end machine-main 1/main 2, and maintains a communication link with the communication front-end machine-main 2. When the communication front-end processor-main 1 fails, the communication front-end processor-main 2 standby link can be used for continuing data interaction. When the CLK module or CLK system of the communication front-end processor completely fails in the main control center, the communication front-end processor-standby 1/communication front-end processor-standby 2 of the standby control center is started to communicate with the CLK interface processor-standby 1/standby 2 and transmit and receive data, and other interface modules of signals are not affected.
Signal master-slave center signal system timing mechanism:
the master-slave control center has 4 communication front-end processors, but only 1 communication front-end processor is used as a master to calibrate with an external clock system, and other communication front-end processors in standby state and the current communication front-end equipment in master state are used for calibrating, and the application server of the master-slave control center and the current internal master communication front-end processor are used for calibrating. If the switching of the master control center occurs, the communication front-end processor-slave 1/slave 2 of the master control center and the front-end equipment of the master control center are calibrated in real time, so that the time difference between the master control and the slave control before and after switching to the communication front-end processor-slave 1 of the slave control center is not excessively large.
The redundant mode of the interfaces of the main and standby centers of the signal system and the wireless system is specifically as follows:
the interface mode of the signal system and the communication wireless system is shown in fig. 5, and when the communication wireless system operates normally, the communication front end processor-main 1/communication front end processor-main 2 is used for communicating with the master control center communication wireless interface processor-main 1/communication wireless interface processor-main 2 respectively.
When the communication wireless module or the communication wireless interface machine of the main control center is completely failed, the communication front end processor-standby 1/communication front end processor-standby 2 of the standby control center is started to communicate with the communication wireless interface machine-standby 1/communication wireless interface machine-standby 2 and transmit and receive data, and other interface modules are not affected.
The internal redundancy mode of the communication wireless interface machine is as follows:
the interface machine-main 1 is the highest priority in the normal state, and is added to the interface machine-main 2 when the host 1 fails. When the interface machine of the wireless system of the main control center fails, the interface machine is automatically switched to the interface machine-standby 1 and the interface machine-standby 2 to communicate with the signal system. When the connection between the interface machine of the main control center and the signal system is recovered to be normal, the main communication module still keeps running in the standby control center, and the use of the whole system is not affected.
The external redundancy modes of the signal system and the wireless system are as follows:
in the main and standby control center, 4 interface machines of the signal system work outwards in parallel, and data are sent to 4 interface machines of the communication wireless system; after receiving the data, 4 interface machines of the communication wireless system internally distinguish the main and the standby.
The following technical effects can be achieved by the embodiment:
1) Redundancy of the communication front-end processor of the main and standby control centers is realized;
2) Realizing the professional seamless switching between the signal system and each system;
3) Signal switching or external interface professional switching does not affect the operation of a signal system;
4) The master and slave control center communication front-end processor does not distinguish the master and slave from each other, and all work in parallel.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.

Claims (10)

1. A switching method of a signal system of a main and standby control center and an external interface is characterized by comprising the following steps:
when all modules in the communication front-end processor in the signal system of the main control center are failed, the corresponding modules of the communication front-end processor in the signal system of the standby control center can be automatically switched to realize that the signal system can communicate with an external interface machine through the communication front-end processor of the standby control center;
or when all modules in the communication front-end processor in the signal system of the standby control center fail, the modules can be automatically switched to corresponding modules of the communication front-end processor in the signal system of the main control center; the signal system can communicate with an external interface machine through a communication front-end processor of the main control center;
when the external interface machine which communicates with the communication front-end processor of the main control center fails, the corresponding interface machine can be switched between different communication front-end processors of the main control center so as to ensure that the signal system communicates with the corresponding external interface machine which normally operates through the communication front-end processor of the main control center;
or when the external interface machine which communicates with the communication front-end processor of the standby control center fails, the corresponding interface machine can be switched between different communication front-end processors of the standby control center so as to ensure that the signal system communicates with the corresponding external interface machine which normally operates through the communication front-end processor of the standby control center.
2. The method of claim 1, wherein the active control center and the standby control center each comprise at least two communication front-end processors; different communication front-end processors can be switched mutually;
the main control center and the standby control center both comprise a plurality of module groups for external interface service; each service module group comprises a passenger information system, a broadcasting system, a comprehensive monitoring system, a clock system and a wireless system communication system;
when the signal system operates normally, the signal system communicates with the passenger information system, the broadcasting system, the comprehensive monitoring system, the clock system and the wireless system of the main control center and/or the standby control center through at least one communication front-end processor of the main control center and/or the standby control center.
3. The method of claim 2, wherein each of the communication front-end processors includes a passenger information system interface module, a broadcast system interface module, a comprehensive monitoring system interface module, a clock system interface module, and a wireless system interface module, which are connected in one-to-one correspondence with a passenger information system, a broadcast system, a comprehensive monitoring system, a clock system, and a wireless communication system, respectively;
the external interface machine comprises a passenger information system interface machine, a broadcasting system interface machine, a comprehensive monitoring system interface machine, a clock system interface machine and a wireless system interface machine which are respectively connected with the passenger information system interface module, the broadcasting system interface module, the comprehensive monitoring system interface module, the clock system interface module and the wireless system interface module in one-to-one correspondence;
when the signal system normally operates, the signal system communicates with at least one corresponding passenger information system, broadcasting system, comprehensive monitoring system, clock system and wireless communication system through at least one communication front-end processor of the main control center and/or the standby control center.
4. A method according to claim 3, wherein the passenger information system interface is internally redundant in the form of:
one passenger information system interface machine corresponding to the main control center is taken as the highest priority in the normal state, and when the passenger information system interface machine fails, the passenger information system interface machine is supplemented to the other passenger information system interface machine corresponding to the main control center; when the passenger information system interface machine corresponding to the main control center fails, automatically switching to at least one passenger information system interface machine corresponding to the standby control center to communicate with the signal system; when the connection between the passenger information system interface machine corresponding to the main control center and the signal system is recovered to be normal, the intra-pair communication is automatically switched to at least one passenger information system interface machine corresponding to the main control center.
5. The method of claim 4, wherein the external redundancy of the signaling system and passenger information system interface is:
all communication front-end processors of the signal system work outwards in parallel in the main control center and the standby control center, and simultaneously data are sent to all interface machines corresponding to the passenger information system; and after receiving the data, all interface machines corresponding to the passenger information system internally distinguish the main and the standby.
6. The method of claim 1, wherein the internal redundancy of the integrated monitoring system interface is:
one comprehensive monitoring system interface machine corresponding to the main control center is used as the highest priority, and when the comprehensive monitoring system interface machine fails, the comprehensive monitoring system interface machine is automatically switched to the other comprehensive monitoring system interface machine corresponding to the main control center to communicate with the signal system;
the external redundancy mode of the interface machine of the signal system and the integrated monitoring system is as follows:
all front-end processors of the signal system corresponding to the interface machines of the comprehensive monitoring system work outwards in parallel in the main control center and the standby control center, and simultaneously data are sent to all the interface machines corresponding to the comprehensive monitoring system; and after receiving the data, all the interface machines corresponding to the comprehensive monitoring system internally distinguish the main and the standby.
7. The method of claim 1, wherein the clock system interface is configured with internal redundancy:
at least two interface machines of the clock system are respectively connected with the communication master clock, and when the clock system interface machine of the main control center fails, any one of the clock system interface machines of the standby control center is switched to continue to operate; if all the interface machines in the clock system interface machine of the main control center are recovered to be normal, the clock system interface machine is switched back to the main control center to continue to operate.
8. The method of claim 7, wherein the external redundancy of the signal system and clock system interface is:
when one clock system interface machine corresponding to the main control center is used as a host machine to acquire clock information with a communication master clock in a normal state, the clock system interface machine performs data interaction with all communication front-end processors of the main control center, and maintains a communication link with one of the communication front-end processors; when one of the communication front-end processors fails, the standby link of the other communication front-end processor can be used for continuing data interaction; when the clock system interface module or the clock system of the communication front-end processor of the main control center is completely failed, all the communication front-end processors of the standby control center are started to communicate with the corresponding clock system interface computers and transmit and receive data.
9. The method of claim 1, wherein the signal system timing mechanism of the active control center and the standby control center is:
the master control center and the standby control center only have 1 communication front-end processor as a master computer to calibrate with a clock system, and the rest communication front-end processors in standby state and the current front-end equipment in master state are used for calibrating, and the master control center and the application server of the standby control center are used for calibrating with the current internal master communication front-end processor.
10. The method of claim 1, wherein the internal redundancy of the wireless system interface machine is:
one wireless system interface machine corresponding to the main control center is the highest priority in a normal state, and is supplemented to the other wireless system interface corresponding to the main control center when the wireless system interface machine fails; when all wireless system interface machines corresponding to the main control center are failed, the interface machines corresponding to the standby control center are automatically switched to communicate with the signal system; when all wireless system interface machines corresponding to the main control center are connected with the signal system and recovered to be normal, the main module for internal communication still keeps running in the standby control center;
the external redundancy modes of the signal system and the wireless system are as follows:
all front-end processors of the signal system corresponding to the interface machines of the wireless system work outwards in parallel in the main control center and the standby control center, and simultaneously data are sent to all the interface machines corresponding to the wireless system; and after receiving the data, all interface machines corresponding to the wireless system internally distinguish the main and the standby.
CN202310859843.6A 2023-07-13 2023-07-13 Switching method of signal system and external interface of main and standby control center Pending CN116723087A (en)

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