CN114954576A - Realization structure of communication machine when communicating with radio block center in interlocking system - Google Patents
Realization structure of communication machine when communicating with radio block center in interlocking system Download PDFInfo
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- CN114954576A CN114954576A CN202210564981.7A CN202210564981A CN114954576A CN 114954576 A CN114954576 A CN 114954576A CN 202210564981 A CN202210564981 A CN 202210564981A CN 114954576 A CN114954576 A CN 114954576A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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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
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- 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
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- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a realization structure of a communicator when communicating with a wireless block center in an interlocking system, which comprises the following components: the interlocking system comprises an internal communication ring network, a first communicator, a second communicator, a first interlocking machine and a second interlocking machine; the first communicator, the second communicator, the first interlocking machine and the second interlocking machine are all connected to an internal communication ring network of the interlocking system, and the first communicator and the second communicator are all used for communicating with the wireless block center. In the implementation structure, the communicator independently completes the receiving and sending of communication protocol data, provides a feasible and referable solution for load shedding and load shedding of certain signal equipment with the characteristics of high operational load and the like in a railway signal system, provides a good implementation basis for safety data encryption, improves the rationality and operational safety of the railway signal system signal equipment, improves the station transportation efficiency and improves the transportation capacity of the railway system.
Description
Technical Field
The present disclosure relates to the technical field of railway signal equipment, and in particular, to an implementation structure of a communicator in an interlocking system when communicating with a radio block center.
Background
With the development of rail transit technology, the communication data volume of a train operation control system is larger and larger, communication interfaces are more and more, and the requirement on the Processing capacity of a Central Processing Unit (CPU) board of a signal device is higher and higher. For a super large hub station, such as a ZXC station, there are 6 interlocked inter-station interfaces, 2 column control interfaces, and 1 RBC (Radio Block Center) interface, and an inter-station interface may be further added in the future. In the related art, the computing capability of a CPU board adopted by a computer interlocking system is limited, so that the large interlocking operation and encryption algorithm cannot be completed under the same hardware unit, and the data encryption operation in the large interlocking communication cannot be completed.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide an implementation structure of a communication machine in an interlocking system when communicating with a radio block center, in the implementation structure, the communication machine can independently complete the receiving and sending of communication protocol data, a feasible and borrowable solution for load shedding and load shedding is provided for certain signal equipment with the characteristics of high operation load and the like in a railway signal system, a good implementation basis is provided for safety data encryption, the rationality and the operation safety of the signal equipment of the railway signal system are improved, the station transportation efficiency is improved, and the transportation capacity of the railway system is improved.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an implementation structure of a communicator when communicating with a radio block center in an interlocking system, where the structure includes: the interlocking system comprises an internal communication ring network, a first communicator, a second communicator, a first interlocking machine and a second interlocking machine; the first communicator, the second communicator, the first interlocking machine and the second interlocking machine are all connected to an internal communication ring network of the interlocking system, and the first communicator and the second communicator are all used for communicating with the wireless block center.
The implementation structure of the communication machine when communicating with the wireless block center in the interlocking system comprises an interlocking system internal communication ring network, a first communication machine, a second communication machine, a first interlocking machine and a second interlocking machine, wherein the first communication machine, the second communication machine, the first interlocking machine and the second interlocking machine are all connected to the interlocking system internal communication ring network and are used for receiving and processing data from the interlocking machines, the first communication machine and the second communication machine are both used for communicating with the wireless block center, the communication machines are used for independently completing the receiving and sending of communication protocol data, a feasible and referenceable solution for load reduction and load reduction of certain signal equipment with high operation load characteristics in a railway signal system is provided, a good implementation basis is provided for safety data encryption, the rationality and the operation safety of the railway signal equipment are improved, and the transport efficiency of a station is improved, the transport capacity of the railway system is improved.
In addition, the implementation structure of the communicator when communicating with the radio block center in the interlock system proposed by the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the radio block center has a first ethernet interface and a second ethernet interface, and the first communicator and the second communicator each have a third ethernet interface and a fourth ethernet interface; the third ethernet interfaces of the first communicator and the second communicator are both used for being connected with the first ethernet interface of the radio block center, and the fourth ethernet interfaces of the first communicator and the second communicator are both used for being connected with the second ethernet interface of the radio block center.
According to one embodiment of the invention, one of the first communicator and the second communicator is a communicator host, and the other is a communicator standby; one of the first interlocking machine and the second interlocking machine is an interlocking master machine, and the other one is an interlocking standby machine; the communication host is used for processing communication information from the interlocking master machine and state information of the interlocking master machine, processing communication information from the radio block center, completing conversion and transmission of interaction information between the interlocking master machine and the radio block center, and sending state information communicated with the radio block center to the interlocking master machine; the communication machine standby machine is used for synchronizing the information of the communication machine main machine, converting the information into the communication machine main machine when the communication machine main machine is in failure, and respectively communicating with the interlocking main machine and the wireless block center based on the synchronization information.
According to an embodiment of the present invention, the first communication device and the second communication device each have four operating states, which are a shutdown state, an active state, a hot standby state, and an offline state, and the first communication device is configured to: when the second communication machine is in a non-main state, the shutdown state is switched to the main state; when the second communication machine is in the active state, the shutdown state is switched to the off-line state; when the synchronization of the data of the second communicator is successful in the offline state, switching the offline state to the hot standby state; when the second communication machine fails in the offline state, switching from the offline state to the active state; and when the second communication machine fails in the hot standby state, switching from the hot standby state to the active state.
According to one embodiment of the invention, the first communication machine and the second communication machine are provided with a display panel, and at least one of a communication lamp, a main lamp, a standby lamp, a first fault lamp and a second fault lamp is arranged on the display panel; the communication lamp is normally on to indicate that the communication of the corresponding communication machine is normal, the communication lamp flashes to indicate that the communication connection of the corresponding communication machine is established, and the communication lamp is turned off to indicate that the communication of the corresponding communication machine fails; the main lamp is normally on to indicate that the corresponding communication machine is in the main state, and the main lamp is off to indicate that the corresponding communication machine is in the non-main state; the standby lamp is normally on to indicate that the corresponding communication machine is in the standby state, and the standby lamp is turned off to indicate that the corresponding communication machine is in the non-standby state; the first fault lamp is normally on to indicate that the corresponding communication machine and the communication are normal, and the first fault lamp is turned off to indicate that the corresponding communication machine or the communication is in fault; the second fault lamp is turned on normally to indicate that the system control panel corresponding to the communication machine runs normally, and the second fault lamp is turned off to indicate that the system control panel has faults.
According to one embodiment of the invention, the communicator host is further configured to: sending a connection request to the radio block center; when first permission information fed back by the radio block center and aiming at the connection request is received, sending a data request to the radio block center; and when second permission information fed back by the radio block center for the data request is received, sending initialization data to the radio block center to establish a communication connection with the radio block center.
According to an embodiment of the present invention, the number of the radio block centers is two, and the two radio block centers are respectively denoted as a first radio block center and a second radio block center, the first radio block center and the second radio block center constitute a two-out-of-two architecture, and both the first radio block center and the second radio block center are used for communicating with the first communicator and the second communicator.
According to an embodiment of the present invention, the implementation structure further includes: the first switch and the second switch are used for establishing communication connection between the first radio block center and the second radio block center and the first communicator and the second communicator.
According to an embodiment of the present invention, the first ethernet interfaces of the first radio block center and the second radio block center are respectively connected to the third ethernet interfaces of the first communicator and the second communicator through the first switch; and second ethernet interfaces of the first radio block center and the second radio block center are correspondingly connected with fourth ethernet interfaces of the first communicator and the second communicator through the second switch.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an implementation structure of a communicator in communication with a radio block center in an interlock system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a communicator and radio block center connection logic for one embodiment of the present invention;
FIG. 3 is a data communication architecture diagram of an implementation architecture of a communicator in accordance with one embodiment of the present invention;
FIG. 4 is a state transition diagram of a communicator of one embodiment of the present invention;
fig. 5 is a communication flow diagram of a communication host and a radio block center according to an embodiment of the present invention;
fig. 6 is a schematic diagram of the establishment of the security protocol between the communication host and the radio block center according to an embodiment of the present invention;
fig. 7 is a communication diagram of an implementation structure of a communicator in communication with a radio block center in an interlock system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an implementation structure of a communicator and a radio block center communication according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes in detail the implementation structure of the communicator when communicating with the radio block center in the interlock system according to the embodiment of the present invention with reference to fig. 1 to 8 and the specific embodiments.
Fig. 1 is a schematic structural diagram of an implementation structure of a communicator in communication with a radio block center in an interlock system according to an embodiment of the present invention.
In an embodiment of the present invention, as shown in fig. 1, an implementation structure 100 of a communicator includes: the interlocking system comprises an internal communication ring network 10 of an interlocking system, two communicators 20 and two interlocking machines 30, wherein the two communicators 20 are respectively a first communicator 21 and a second communicator 22, and the two interlocking machines 30 are respectively a first interlocking machine 31 and a second interlocking machine 32; the first communicator 21, the second communicator 22, the first interlocking machine 31 and the second interlocking machine 32 are all connected to the internal communication ring network 10 of the interlocking system, and the first communicator 21 and the second communicator 22 are both used for communicating with the radio block center RBC.
Specifically, the first communicator 21 and the second communicator 22 are connected to the ring network 10 dedicated inside the interlocking machine 30 of the first interlocking machine 31 and the second interlocking machine 32, the interlocking machine 30 communicates with the two communicators 20 through the interlocking system internal communication ring network 10, and meanwhile, the communication between the two communicators 20, that is, between the first communicator 21 and the second communicator 22, is also completed through the ring network 10 dedicated inside the interlocking machine 30. Although the communicator 20 and the interlocking machine 30 are connected to the same ring network 10, there is no binding relationship between the communicator 20 and the interlocking machine 30, that is, the communicator 20 and the interlocking machine 30 each adopt a layered operation mode, and the switching of the first communicator 21 and the second communicator 22 of the communicator 20 is irrelevant to the switching of the first interlocking machine 31 and the second interlocking machine 32 of the interlocking machine 30.
Further specifically, the first communicator 21 and the second communicator 22 are used for communicating with the radio block center RBC in addition to communicating with the interlocking machine 30 through the interlocking system internal communication ring network 10. The communication between the communicator 20 and the radio block center RBC may be performed through an ethernet interface without passing through the private ring network 10 inside the interlocking machine 30.
In an embodiment of the present invention, as shown in fig. 2, the radio block center RBC has a first ethernet interface a and a second ethernet interface B, and the first communicator 21 and the second communicator 22 each have a third ethernet interface a 'and a fourth ethernet interface B'; the third ethernet interfaces a 'of the first communicator 21 and the second communicator 22 are both used for connecting with the first ethernet interface a of the radio block center RBC, and the fourth ethernet interfaces B' of the first communicator 21 and the second communicator 22 are both used for connecting with the second ethernet interface B of the radio block center RBC.
As an example, there may be two radio block centers RBC, such as the RBC-a machine and the RBC-B machine shown in fig. 2. Each RBC provides two ethernet interfaces, namely a first ethernet interface a and a second ethernet interface B shown in fig. 2, through which communication link redundancy protection can be performed. Meanwhile, in order to meet the requirement of cross-connection between the communicators 20 and the radio block center RBC, each communicator 20 provides two ethernet interfaces, namely a third ethernet interface a 'and a fourth ethernet interface B', so that each communicator 20 establishes 4 logical connections with the radio block center RBC, and the radio block center RBC and the communicators 20 have 8 logical connections, namely, a1, a2, A3, a4, B1, B2, B3 and B4 in fig. 2. Alternatively, the communicator 20 and the RBC may be connected through a switch when they are in ethernet communication.
Specifically, the 8 logical connections a1, a2, A3, a4, B1, B2, B3, B4 in fig. 2 represent respectively the following meanings:
a1: the logic connection of the first communication machine A network is connected with the logic connection communication channel of the RBC-A machine A network;
a2: the logic connection of the first communication machine B network is connected with the logic connection communication channel of the RBC-A machine B network;
b1: the logic connection of the first communication machine A network is connected with the logic connection communication channel of the RBC-B machine A network;
b2: the logic connection of the first communication machine B network is connected with the logic connection communication channel of the RBC-B machine B network;
a3: the logic connection of the second communication machine A network is connected with the communication channel of the logic connection of the RBC-A machine A network;
a4: the logic connection of the second communication machine B network is connected with the communication channel of the logic connection of the RBC-A machine B network;
b3: the logic connection of the second communication machine A network is connected with the logic connection communication channel of the RBC-B machine A network;
b4: and the logic connection of the second communication machine B network is connected with the communication channel of the logic connection of the RBC-B machine B network.
In one embodiment of the present invention, as shown in fig. 3, one of the first communicator 21 and the second communicator 22 is a communicator host, and the other is a communicator backup; one of the first interlocking machine 31 and the second interlocking machine 32 is an interlocking primary machine, and the other is an interlocking standby machine; the communication host is used for processing communication information from the interlocking master machine and state information of the interlocking master machine, processing communication information from the Radio Block Center (RBC), completing conversion and transmission of information interaction between the interlocking master machine and the RBC, and sending the state information communicated with the RBC to the interlocking master machine; the communication machine standby machine is used for synchronizing the information of the communication machine main machine, converting the information into the communication machine main machine when the communication machine main machine is in fault, and respectively communicating with the interlocking main machine and the radio block center RBC based on the synchronous information.
Specifically, a main-standby relationship exists between the first communicator 21 and the second communicator 22, and a main-standby relationship also exists between the first interlock 31 and the second interlock 32. The communication machine in the main state is responsible for processing communication information from the interlocking main machine and state information of the interlocking main machine, processing communication information from the Radio Block Center (RBC), performing operation of a security layer on the communication information, completing conversion and transmission of interaction information between the interlocking main machine and the RBC, and sending the state information communicated with the RBC to the interlocking main machine. The communication machine standby machine is used for synchronizing the safety data information of the communication machine main machine and selecting whether to synchronize application data according to configuration, when the configuration selects synchronous application data, the application data of the communication machine main machine is synchronized, when the configuration selects asynchronous application data, the application data of the asynchronous communication machine main machine only synchronizes the safety data of the communication machine main machine, and therefore when the communication machine main machine fails, the synchronous safety data of the communication machine main machine respectively communicate with the interlocking main machine and the radio block center RBC. In an embodiment of the invention, the synchronous application data of the communicator may be selectively configured.
Further specifically, when the main communication unit communicates with the main interlocking unit, the main interlocking unit is responsible for completing the APP layer packing operation of the application data, and sending the APP data packet to the internal communication ring network 10 of the interlocking system, and after receiving the APP data packet of the main interlocking unit from the internal communication ring network 10 of the interlocking system, the main communication unit completes the operation of the SAI (safety application intermediate sub-layer), the EL (european wireless layer), and the ALE (adaptation layer) layers of the safety connection, and generates a final safety protocol data packet. Meanwhile, the host computer of the communication transmits the relevant state information communicated with the RBC to the interlocking master computer. The data format of the state information transmitted by the communication host machine to the interlocking master machine for communication is shown in table 1 below.
TABLE 1
The active/standby identifier is used to identify whether the communication machine currently transmitting data to the interlocking machine is in an active state or a standby state, and the active/standby identifier 1 in table 1 represents that the current communication machine is a communication machine host.
The safety data and the application data are synchronized between the main communication machine and the standby communication machine, the safety data are synchronized in real time, and the synchronization of the application data can be selected according to the configuration of the synchronization of the application data. The safety data comprises EC, SAI (safety application intermediate sub-layer) sequence numbers, KSMAC (session key), ALE (adaptation layer) sequence numbers and the like, when the communication host fails, the current communication host and the communication standby automatically complete state switching, the original communication standby is upgraded to the communication host and continues to use the synchronous safety data of the adjacent communication host to communicate with the radio block center RBC, and the continuity of the sequence numbers in the safety data packet is ensured. The format of the data transmitted by the host communicator to the host communicator is shown in table 2 below.
TABLE 2
When the main communication unit communicates with the radio block center RBC, as shown in fig. 3, the main communication unit and the main communication unit backup unit respectively establish peer-to-peer TCP (Transmission Control Protocol) or IP (Internet Protocol) connections with the RBC-a unit and the RBC-B unit of the radio block center, and optionally, the RBC data Transmission Protocol between the main communication unit and the radio block center RBC may be a TCP Protocol or an IP Protocol, which is not limited herein. The communication machine runs in a client mode, and the radio block center RBC communication runs in a server mode. The communication machine host is used as an initiator of a safety communication protocol, and when a safety protocol data packet is directly sent to the radio block center RBC, the safety data is sent to the communication machine standby machine which is responsible for synchronizing the safety data and the application data sent by the communication machine host.
Specifically, the security protocol DATA packet mainly refers to an AU1 DATA unit, an AU2 DATA unit, an AU3 DATA unit, an AR DATA unit, and subsequently received ECSTART DATA units, transmitted ECSTART DATA units, and DATA units.
Specifically, data transmitted from the interlock device 30 to the radio block center RBC is referred to as uplink data, and data transmitted from the radio block center RBC to the interlock device 30 is referred to as downlink data. Since the downlink data application layer from the radio block center RBC to the interlocking machine 30 only contains a frame header of two bytes and does not contain valid application layer data, the downlink data packet is not sent to the interlocking machine 30 any more after reaching the communication machine 20 and completing the security layer check, and only the communication state is fed back to the interlocking machine 30. The communicator 20 judges whether the communication connection with the radio block center RBC is normal or not according to the security layer check result, and sends the judgment result and other state data to the interlock master.
In order to ensure that the original safe connection can be continuously maintained without interruption when the main communication machine fails, all parameters related to the safe connection are required to be ensured to be synchronized between the main communication machine and the standby communication machine. After the communication machine standby machine is upgraded to the communication machine main machine, the packaging process of the safety protocol data packet is finished by continuously using the related parameters of the original synchronous safety protocol.
It should be noted that the execution period of the communication machine may be 200ms, the communication period may be 400ms, and the communication machine sends the security protocol data packet to the radio block center RBC every 400 ms. Under normal conditions, the time difference of one communication cycle is maximum between security protocol data packets received before and after the RBC slave communication machine switches the master communication machine and the slave communication machine. When the physical connection failure occurs in the host computer of the communication device, the TCP connection of the host computer of the communication device is interrupted and the host-standby switching of the communication device is triggered. Before the connection interruption is judged, in order to ensure that the RBC can continuously receive valid data from the communication machine standby machine within the valid time, the communication machine host still continues to complete the generation and calculation of the safety protocol periodically. After the communication master and the communication slave are switched, the continuity of the serial number is guaranteed to be kept in the time range which can be tolerated by the RBC, and the communication interaction with the RBC is continued.
The communication interaction between the communicator and the RBC can adopt RSSP-II (Railway Signal Safety Protocol) for secure communication.
In the embodiment of the present invention, as shown in fig. 5, the process of establishing the security module connection between the communication host and the radio block center RBC includes:
s101, sends a connection request to the radio block center.
And S102, when first permission information which is fed back by the radio block center and aims at the connection request is received, sending a data request to the radio block center.
And S103, when second permission information for the data request fed back by the radio block center is received, sending initialization data to the radio block center to establish communication connection with the radio block center.
Specifically, the communicator 20 serves as an initiator, the radio block center RBC serves as a responder, the connection is initiated by the application layer of the communicator 20, and is finally established through the sequential interaction of the messages of the bottom layers of the two parties. As shown in fig. 6, the communicator 20 (i.e. the service end) first sends an AU1 data packet (i.e. a connection request) to the radio block center RBC, after the radio block center RBC (i.e. the service end) receives the AU1 data packet sent by the communicator 20, the radio block center RBC replies an AU2 data packet (i.e. first permission information) to the communicator 20, after the communicator 20 receives the AU2 data packet sent by the radio block center RBC, the communicator 20 sends an AU3 data packet (i.e. a data request) to the radio block center RBC, after the radio block center RBC receives the AU3 data packet sent by the communicator 20, the radio block center RBC sends an AR data packet (i.e. second permission information) to the communicator 20, after the communicator 20 receives the AR data packet sent by the radio block center RBC, the ECSTART data packet (i.e. initialization data) is sent by the radio block center RBC, after the radio block center receives the ECSTART data packet sent by the communicator 20, the ECSTART packet (i.e., initialization data) is sent to the communicator 20 for timestamp or EC counter initialization to establish a communication connection with the radio block center RBC. After the communication is established, the radio block center RBC sends a DATA packet to the communication machine 20, the communication machine 20 also sends a DATA packet to the radio block center RBC after receiving the DATA packet sent by the radio block center RBC, the DATA packet is periodically exchanged between the two parties, and DATA exchange in the process of establishing the RBC security module between the communication machine and the radio block center RBC is carried out through security layers of the two parties.
More specifically, in the process of establishing communication between the communicator 20 and the radio block center RBC and in the process of normal communication, when an error occurs in the analyzed data, different processing measures are taken according to the severity of the fault, and a corresponding fault code is recorded, so as to facilitate problem positioning and reason troubleshooting. The specific reason codes are shown in table 3 below:
TABLE 3
In an embodiment of the present invention, as shown in fig. 4, each of the first communicator 21 and the second communicator 22 has four operating states, which are a shutdown state, an active state, a hot standby state, and an offline state, and the first communicator 21 is configured to: when the second communication machine 22 is in the inactive state, the shutdown state is switched to the active state; when the second communication machine 22 is in the active state, the shutdown state is switched to the offline state; when the data of the second communication machine 22 is successfully synchronized in the offline state, the offline state is switched to the hot standby state; when the second communication machine 22 fails in the offline state, the offline state is switched to the active state; when the second communication device 22 fails in the hot standby state, the hot standby state is switched to the active state.
It should be noted that the second communicator 22 and the first communicator 21 have the same structure, function, and state switching rule, and are not described herein again.
Specifically, four states of shutdown, active, hot standby and offline of the communication machine respectively represent:
a shutdown state: the communication machine is in a shutdown state when the communication software does not normally run;
a main state: the communication machine is communicated with the RBC and the interlocking master machine normally, and the communication machine in the state receives all external inputs to carry out communication operation and outputs an operation result to the outside;
a hot standby state: the communication between the communication machine and the RBC and the interlocking host are normal, the adjacent machine is in a main state, and the communication machine and the adjacent machine are in a state of synchronous operation with the host after synchronous completion. The communication machine in the hot standby state receives all external inputs to carry out communication operation, but the operation result is not output externally;
an off-line state: it means that the software of the communication machine is operated but does not have the hot standby/main use condition.
It should be noted that the initial state of the communication device is defaulted to the shutdown state, the end state is defaulted to the shutdown state, and the rest states are intermediate states of the communication device.
More specifically, as shown in fig. 4, when the host computer of the communication device fails, the host computer is switched from the active state to the shutdown state, when the communication device 20 in the offline state fails, the host computer of the communication device is switched from the offline state to the shutdown state, and when the communication device 20 in the hot standby state fails, the host computer of the communication device is switched from the hot standby state to the shutdown state, that is, when the communication device 20 in any state fails, the host computer of the communication device is switched from the current state to the shutdown state. In addition, when a hot-standby failure occurs in the communicator 20 in the hot-standby state, the state is switched from the hot-standby state to the offline state.
According to an embodiment of the present invention, each of the first communicator 21 and the second communicator 22 has a display panel on which at least one of a communication lamp, an active lamp, a standby lamp, a first failure lamp, and a second failure lamp is disposed. The communication lamp is normally on to indicate that the communication of the corresponding communication machine 20 is normal, the communication lamp is flickering to indicate that the communication connection of the corresponding communication machine 20 is established, and the communication lamp is turned off to indicate that the communication of the corresponding communication machine 20 is failed; the main lamp is normally on to indicate that the corresponding communication machine 20 is in the main state, and the main lamp is off to indicate that the corresponding communication machine 20 is in the non-main state; the standby lamp is normally on to indicate that the corresponding communication machine 20 is in a standby state, and the standby lamp is off to indicate that the corresponding communication machine 20 is in a non-standby state; the first fault lamp is normally on to indicate that the corresponding communication machine 20 and the communication are normal, and the first fault lamp is off to indicate that the corresponding communication machine 20 or the communication is in fault; the second trouble lamp is normally on to indicate that the system control board of the corresponding communicator 20 is operating normally, and the second trouble lamp is turned off to indicate that the system control board of the corresponding communicator 20 is out of order.
Specifically, in order to provide the operating state of the communicator to the maintenance personnel in real time, a state representation board of the communicator may be provided while being displayed in the form of a representation lamp. At least one of the communication lamp, the main lamp, the standby lamp, the first fault lamp and the second fault lamp is arranged on the display panel, and the communication machine 20 and the system control panel thereof in different states can be represented through different indicator lamps and states thereof on the display panel.
Further specifically, the communication lamp of the communication host is turned on constantly to indicate that the communication between the ethernet and the interlocking machine 30 is normal, and the communication lamp of the communication backup machine is turned on constantly to indicate that the communication between the ethernet and the communication host is normal; the communication lamp of the communication machine host flickers to indicate that the communication is established safely, and the communication lamp of the communication machine standby machine flickers to indicate that the safety connection is established to the master system; the communication lamp of the communication machine main body is turned off to indicate the communication fault of the Ethernet and the interlocking machine 30, and the communication lamp of the communication machine standby machine is turned off to indicate the communication fault of the Ethernet and the communication machine main body. The main lamp of the first communication device 21 is normally on to indicate that the first communication device is in the main state, the standby lamp is normally on to indicate that the first communication device is in the standby state, and the main lamp and the standby lamp are turned off to indicate that the first communication device is not in the main state and the standby state; the usage of the active lamp and the standby lamp of the second communicator 22 is the same as that of the first communicator 21, and will not be described herein. When the first fault lamp of the communicator 20, namely the lamp indicating the disc fault is normally on, the current communicator 20 is normal in equipment and communication, and when the first fault lamp is turned off, the current communicator 20 is faulty in equipment or communication; when the second failure lamp of the communication device 20, i.e., the system control board failure lamp, is turned on constantly, it indicates that the system control board is operating normally, and when the second failure lamp is turned off, it indicates that the system control board is failed.
Fig. 7 is a communication diagram of an implementation structure of a communicator when communicating with a radio block center in the interlock system according to an embodiment of the present invention.
As shown in fig. 7, the communicator 20 is connected to the radio block center RBC, the interlock device 30, and the adjacent communicator 20, and also communicates with the security platform 200, and the reverse board is mounted on the security platform 200, so that the reverse logic control can be realized, and when the host computer of the communicator fails, the main and standby switch of the communicator can be realized through the reverse logic control of the reverse board.
Fig. 8 is a schematic structural diagram of an implementation structure of a communicator and a radio block center communication according to an embodiment of the present invention.
In the embodiment of the present invention, as shown in fig. 8, the number of radio block centers RBC is two, and the two radio block centers RBC are respectively denoted as a first radio block center RBC-a and a second radio block center RBC-B, the first radio block center RBC-a and the second radio block center RBC-B form a two-out-of-two architecture, and both the first radio block center RBC-a and the second radio block center RBC-B are used for communicating with the first communicator 21 and the second communicator 22, such as communicating via ethernet.
When the first radio block center RBC-a and the second radio block center RBC-B communicate with the first communicator 21 and the second communicator 22 via ethernet, switches can be used as bridges for information communication.
In an embodiment of the present invention, as shown in fig. 8, the implementation structure 100 of the communicator in communication with the radio block center in the interlock system further includes: the system comprises A first switch S-A and A second switch S-B, wherein the first switch S-A and the second switch S-B are used for establishing communication connection between A first radio block center RBC-A and A second radio block center RBC-B and A first communicator 21 and A second communicator 22.
Specifically, the first switch S-A is used to establish A communication connection between the communicator 20 and the radio block center RBC, that is, an A network, the second switch S-B is used to establish A communication connection between the communicator 20 and the radio block center RBC, that is, A B network, and the first switch S-A and the second switch S-B are used to exchange an AU1 datA packet, an AU2 datA packet, an AU3 datA packet, an AR datA packet, and A subsequent ECSTART datA packet and A datA packet when the communicator 20 and the radio block center RBC construct A security module.
As an example, referring to fig. 2 (switch not shown), the first radio block center RBC-a and the second radio block center RBC-B each have a first ethernet interface a and a second ethernet interface B, and the first communicator 21 and the second communicator 22 each have a third ethernet interface a 'and a fourth ethernet interface B'; the first ethernet interface A of the first radio block center RBC-A, the first ethernet interface A of the second radio block center RBC-A, the third ethernet interface A 'correspondingly connected to the first communicator 21 through the first switch S-A, and the third ethernet interface A' correspondingly connected to the second communicator 21. The second ethernet interface B of the first radio block center RBC-B, the second ethernet interface B of the second radio block center RBC-B, the fourth ethernet interface B 'of the first communicator 21 and the fourth ethernet interface B' of the second communicator 22 are correspondingly connected through the second switch S-B.
The communication machine can independently complete the receiving and sending of communication protocol data, realize the communication and the control between the train and a platform when in operation, simultaneously, the communication machine and the interlocking machine share one interlocking system internal communication ring network for information transmission between the communication machine and the interlocking machine, can reduce the load and the load of a CPU board of the interlocking machine, and reduce the risk of the operation overtime of the interlocking machine system. The communication machine and the wireless block center construct a signal safety communication protocol through the Ethernet interface and complete periodic information interaction, so that the railway signal safety communication protocol implementation scheme is integrated into a single signal device, the signal device is modularized, and the complexity of the railway signal system signal device is reduced. The integrated interlocking system can be used for communication between signal devices which use a railway safety communication protocol to communicate, provides a feasible solution for the signal devices of the railway signal system, and provides support for the rapid development of the railway signal system. The reasonability and the operation safety of the railway signal system signal equipment are improved, and the station transportation efficiency is improved.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. An architecture for implementing a communicator in communication with a radio block center in an interlocking system, said architecture comprising: the interlocking system comprises an internal communication ring network, a first communicator, a second communicator, a first interlocking machine and a second interlocking machine;
the first communicator, the second communicator, the first interlocking machine and the second interlocking machine are all connected to an internal communication ring network of the interlocking system, and the first communicator and the second communicator are all used for communicating with the wireless block center.
2. The architecture according to claim 1, characterized in that said radio block center has a first ethernet interface and a second ethernet interface, said first communicator and said second communicator each having a third ethernet interface and a fourth ethernet interface;
the third ethernet interfaces of the first communicator and the second communicator are both used for being connected with the first ethernet interface of the radio block center, and the fourth ethernet interfaces of the first communicator and the second communicator are both used for being connected with the second ethernet interface of the radio block center.
3. The implementation structure of claim 1, wherein one of the first communicator and the second communicator is a communicator host, and the other is a communicator backup; one of the first interlocking machine and the second interlocking machine is an interlocking master machine, and the other one is an interlocking standby machine;
the communication host is used for processing communication information from the interlocking master machine and state information of the interlocking master machine, processing communication information from the radio block center, completing conversion and transmission of interaction information between the interlocking master machine and the radio block center, and sending state information communicated with the radio block center to the interlocking master machine;
the communication machine standby machine is used for synchronizing the information of the communication machine main machine, converting the information into the communication machine main machine when the communication machine main machine is in failure, and respectively communicating with the interlocking main machine and the wireless block center based on the synchronization information.
4. The implementation structure of claim 3, wherein the first communicator and the second communicator each have four operating states, which are a shutdown state, an active state, a hot standby state, and an offline state, respectively, and the first communicator is configured to:
when the second communication machine is in a non-main state, the shutdown state is switched to the main state;
when the second communication machine is in the active state, the shutdown state is switched to the off-line state;
when the synchronization of the data of the second communicator is successful in the offline state, switching the offline state to the hot standby state;
when the second communication machine fails in the offline state, switching from the offline state to the active state;
and when the second communication machine fails in the hot standby state, switching from the hot standby state to the active state.
5. The implementation structure of claim 4, wherein the first communicator and the second communicator each have a display panel on which at least one of a communication lamp, a main lamp, a spare lamp, a first fault lamp and a second fault lamp is disposed;
the communication lamp is normally on to indicate that the communication of the corresponding communication machine is normal, the communication lamp flashes to indicate that the communication connection of the corresponding communication machine is established, and the communication lamp is turned off to indicate that the communication of the corresponding communication machine fails;
the main lamp is normally on to indicate that the corresponding communication machine is in the main state, and the main lamp is off to indicate that the corresponding communication machine is in the non-main state;
the standby lamp is normally on to indicate that the corresponding communication machine is in the standby state, and the standby lamp is turned off to indicate that the corresponding communication machine is in the non-standby state;
the first fault lamp is normally on to indicate that the corresponding communication machine and the communication are normal, and the first fault lamp is turned off to indicate that the corresponding communication machine or the communication is in fault;
the second fault lamp is turned on normally to indicate that the system control panel corresponding to the communication machine runs normally, and the second fault lamp is turned off to indicate that the system control panel has faults.
6. The implementation structure of claim 3, wherein the communicator host is further configured to:
sending a connection request to the radio block center;
when first permission information fed back by the radio block center and aiming at the connection request is received, sending a data request to the radio block center;
and when second permission information fed back by the radio block center for the data request is received, sending initialization data to the radio block center to establish a communication connection with the radio block center.
7. The implementation structure of claim 2, wherein the number of the radio block centers is two, and the two radio block centers are respectively denoted as a first radio block center and a second radio block center, and the first radio block center and the second radio block center form a two-in-two architecture, and both the first radio block center and the second radio block center are used for communicating with the first communicator and the second communicator.
8. The implementation structure of claim 7, further comprising:
the first switch and the second switch are used for establishing communication connection between the first radio block center and the second radio block center and the first communicator and the second communicator.
9. The implementation structure of claim 8,
the first Ethernet interfaces of the first radio block center and the second radio block center are correspondingly connected with the third Ethernet interfaces of the first communicator and the second communicator through the first switch;
and second ethernet interfaces of the first radio block center and the second radio block center are correspondingly connected with fourth ethernet interfaces of the first communicator and the second communicator through the second switch.
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