CN114954576B - Implementation structure of communication machine for communication with wireless block center in interlocking system - Google Patents
Implementation structure of communication machine for communication with wireless block center in interlocking system Download PDFInfo
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- CN114954576B CN114954576B CN202210564981.7A CN202210564981A CN114954576B CN 114954576 B CN114954576 B CN 114954576B CN 202210564981 A CN202210564981 A CN 202210564981A CN 114954576 B CN114954576 B CN 114954576B
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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
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Abstract
The invention discloses an implementation structure of a communication machine when communicating with a wireless block center in an interlocking system, which comprises the following steps: the interlocking system comprises an internal communication ring network, a first communication machine, a second communication machine, 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 interlocking system internal communication ring network, and the first communicator and the second communicator are all used for communicating with the wireless blocking center. In the implementation structure, the communication machine independently completes the receiving and sending of communication protocol data, provides a feasible and borrowable solution for load shedding and load shedding of certain operation load and other characteristics of the railway signal system, provides a good implementation basis for safe data encryption, improves the rationality and operation 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 disclosure relates to the technical field of railway signal equipment, and in particular relates to an implementation structure of a communication machine in an interlocking system when the communication machine communicates with a wireless block center.
Background
With the development of rail transit technology, the communication data volume of a train operation control system is larger and the communication interfaces are also larger and larger, and the processing capacity requirement on a CPU (Central Processing Unit ) board of the signal equipment is also higher and higher. For ultra-large hub stations, such as ZXC stations, there are 6 inter-station interfaces, 2 train control interfaces, 1 RBC (Radio Block Center ) interface, and there is a potential for an increase in inter-station interfaces in the future. In the related art, the computer interlocking system adopts a CPU board with limited computing capability, 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 aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention aims to provide an implementation structure of a communication machine when communicating with a wireless block center in an interlocking system, in the implementation structure, the communication machine independently completes the receiving and transmitting of communication protocol data, provides a feasible and borrowable solution for load shedding and load shedding of certain signal equipment with high operation load and the like in a railway signal system, provides a good implementation foundation for safe data encryption, improves the rationality and operation safety of the signal equipment of the railway signal system, improves the station transportation efficiency, and improves the transportation capacity of the railway system.
In order to achieve the above object, an embodiment of the present invention provides an implementation structure of a communication device for communicating with a wireless blocking center in an interlock system, where the structure includes: the interlocking system comprises an internal communication ring network, a first communication machine, a second communication machine, 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 interlocking system internal communication ring network, 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 in the interlocking system of the embodiment of the invention 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 machine, the first communication machine and the second communication machine are both used for communicating with the wireless blocking center, and the communication machine can independently complete the receiving and sending of communication protocol data, thereby providing a feasible and borrowable load-reducing solution for signal equipment with high operation load and the like in a railway signal system, providing a good implementation basis for safe data encryption, improving the rationality and operation safety of the signal equipment of the railway signal system, and improving the transportation efficiency of a station and the transportation capability of the railway system.
In addition, the implementation structure of the communication device when communicating with the wireless block center in the interlocking system according to the embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the present invention, the wireless occlusion 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 communication machine and the second communication machine are used for being connected with the first Ethernet interface of the wireless block center, and the fourth Ethernet interfaces of the first communication machine and the second communication machine are used for being connected with the second Ethernet interface of the wireless block center.
According to one embodiment of the present invention, one of the first communication device and the second communication device is a communication device host, and the other is a communication device standby device; one of the first interlocking machine and the second interlocking machine is an interlocking main machine, and the other is an interlocking standby machine; the communication host is used for processing the communication information from the interlocking host and the state information of the interlocking host, processing the communication information from the wireless block center, completing the conversion and transmission of the interaction information between the interlocking host and the wireless block center, and sending the state information communicated with the wireless block center to the interlocking host; the communication machine is used for synchronizing the information of the communication machine host, converting the communication machine host into the communication machine host when the communication machine host fails, and communicating with the interlocking host and the wireless blocking center respectively 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 working states, namely a shutdown state, a main 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 second communication machine is switched from the stop state to the main state; when the second communication machine is in the main state, the second communication machine is switched from the shutdown state to the offline state; switching from the offline state to the hot standby state when the data of the second communication machine is successfully synchronized in the offline state; when the second communication machine fails in the off-line state, switching from the off-line state to the main state; and when the second communication machine fails in the hot standby state, switching from the hot standby state to the main state.
According to one embodiment of the present invention, the first communication device and the second communication device each have a display panel on which at least one of a communication lamp, a main lamp, a standby lamp, a first failure lamp, and a second failure lamp is provided; 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 of the corresponding communication machine is in communication connection establishment, and the communication lamp goes off to indicate that the communication of the corresponding communication machine is in fault; 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 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 communication are normal, and the first fault lamp is off to indicate that the corresponding communication machine or communication is faulty; the second fault lamp is normally on to indicate that the system control board of the corresponding communication machine is normal in operation, and the second fault lamp is off to indicate that the system control board is faulty.
According to one embodiment of the invention, the communication host is further configured to: transmitting a connection request to the wireless block center; when receiving first permission information fed back by the wireless block center for the connection request, sending a data request to the wireless block center; and when receiving second permission information fed back by the radio block center for the data request, sending initialization data to the radio block center so as to establish communication connection with the radio block center.
According to one embodiment of the present invention, the number of the radio block centers is two, which 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 form a two-out-of-two architecture, and the first radio block center and the second radio block center are both used for communication with the first communication device and the second communication device.
According to one 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 wireless block center and the second wireless block center and the first communication machine and the second communication machine.
According to one embodiment of the present invention, the first ethernet interfaces of the first wireless blocking center and the second wireless blocking center are correspondingly connected to the third ethernet interfaces of the first communicator and the second communicator through the first switch; and the second Ethernet interfaces of the first wireless block center and the second wireless block center are correspondingly connected with the fourth Ethernet interfaces of the first communication machine and the second communication machine 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 when communicating 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 communication device and a wireless occlusion center connection logic in accordance with one embodiment of the present invention;
FIG. 3 is a schematic diagram of a data communication structure of an implementation structure of a communication machine according to an embodiment of the present invention;
FIG. 4 is a state transition diagram of a communication machine according to one embodiment of the present invention;
fig. 5 is a flow chart of communication between a communicator host and a radio block center according to one embodiment of the present invention;
fig. 6 is a schematic diagram illustrating security protocol establishment between a host of a communication device and a wireless block center according to an embodiment of the present invention;
fig. 7 is a communication schematic diagram of an implementation structure of a communicator when communicating with a radio block center in an interlock system according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an implementation structure of a communication device according to an embodiment of the present invention for communicating with a radio block center.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes in detail the implementation structure of a communication device in the interlocking system according to the embodiment of the present invention when the communication device communicates with a wireless block center, with reference to fig. 1 to 8 and the detailed description.
Fig. 1 is a schematic structural diagram of an implementation structure of a communicator when communicating 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 communication apparatus includes: the interlocking system comprises an interlocking system internal communication ring network 10, two communicators 20 and two interlockers 30, wherein the two communicators 20 are respectively a first communicator 21 and a second communicator 22, and the two interlockers 30 are respectively a first interlocking machine 31 and a second interlocking machine 32; the first communicator 21, the second communicator 22, the first interlock 31 and the second interlock 32 are all connected to the inter-interlock system communication ring network 10, and the first communicator 21 and the second communicator 22 are all 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 simultaneously, the communication between the two communicators 20, that is, between the first communicator 21 and the second communicator 22, is also completed through the interlocking machine 30 internal dedicated ring network 10. Although the communicator 20 and the interlocking device 30 are connected to the same ring network 10, there is no binding relationship between the communicator 20 and the interlocking device 30, that is, the communicator 20 and the interlocking device 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 device 31 and the second interlocking device 32 of the interlocking device 30.
More specifically, the first communicator 21 and the second communicator 22 are used to communicate with the radio block center RBC in addition to the interlocking device 30 through the interlocking system internal communication ring network 10. Communication between the communicator 20 and the radio block center RBC can be performed through an ethernet interface without passing through the private ring network 10 inside the interlock device 30.
In the 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 communication device 21 and the second communication device 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 communication device 21 and the second communication device 22 are both used for connecting with the second ethernet interface B of the radio block center RBC.
As one example, there may be two RBCs in the radio block center, such as the RBC-se:Sub>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 the redundancy protection of the communication link can be performed. Meanwhile, to meet the requirement of the cross interconnection 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 logic connections with the radio block center RBC, and 8 logic connections are totally provided between the radio block center RBC and the communicators 20, namely A1, A2, A3, A4, B1, B2, B3, B4 in fig. 2. Alternatively, the communicator 20 and RBC may be connected through a switch while ethernet communication is in progress.
Specifically, the meaning represented by 8 logical connections A1, A2, A3, A4, B1, B2, B3, B4 in fig. 2 is:
a1: se:Sub>A communication channel for the logical connection of the first communicator A network to the logical connection of the RBC-A communicator A network;
a2: se:Sub>A communication channel for logically connecting the first communication machine B network with the RBC-A machine B network;
b1: a communication channel for the logical connection of the first communicator A network to the logical connection of the RBC-B communicator A network;
b2: a communication channel for the logical connection of the first communicator B network to the logical connection of the RBC-B communicator B network;
a3: se:Sub>A communication channel for the logical connection of the second communicator A network to the logical connection of the RBC-A communicator A network;
a4: se:Sub>A communication channel for logically connecting the second communication machine B network with the RBC-A machine B network;
b3: a communication channel for the logical connection of the second communicator A network to the logical connection of the RBC-B communicator A network;
b4: the second communication machine B network logic connection and the RBC-B machine B network logic connection communication channel.
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 standby; one of the first interlocking machine 31 and the second interlocking machine 32 is an interlocking main machine, and the other is an interlocking standby machine; the communication machine host is used for processing the communication information from the interlocking host and the state information of the interlocking host, processing the communication information from the wireless block center RBC, completing the conversion and the transmission of the interaction information between the interlocking host and the wireless block center RBC, and sending the state information communicated with the wireless block center RBC to the interlocking host; the communication machine is used for synchronizing the information of the communication machine host, converting the communication machine host into the communication machine host when the communication machine host fails, and communicating with the interlocking host and the wireless blocking center RBC respectively based on the synchronization information.
Specifically, the first communication device 21 and the second communication device 22 have a master-slave relationship, and the first interlock device 31 and the second interlock device 32 have a master-slave relationship. The communication machine in the main state is responsible for processing the communication information from the interlocking main machine and the state information of the interlocking main machine, processing the communication information from the radio block center RBC, carrying out security layer operation on the communication information, completing conversion and transmission of the interaction information between the interlocking main machine and the radio block center RBC, and sending the state information communicated with the radio block center RBC to the interlocking main machine. The communication machine is used for synchronizing the safety data information of the communication machine host and selecting whether to synchronize the application data according to the configuration, when the configuration selects the synchronous application data, the application data of the communication machine host is synchronized, when the configuration selects the asynchronous application data, the application data of the asynchronous communication machine host only synchronizes the safety data of the communication machine host, so that when the communication machine host fails, the safety data of the synchronous communication machine host is respectively communicated with the interlocking main machine and the wireless blocking center RBC. In an embodiment of the invention, the synchronous application data of the communication machine can be optionally configured.
More specifically, when the communication host communicates with the interlocking host, the interlocking host is responsible for completing the APP layer packing operation of application data, and sending an APP data packet to the inter-communication ring network 10 of the interlocking system, and after the communication host receives the APP data packet of the interlocking host from the inter-communication ring network 10 of the interlocking system, the communication host completes the SAI (security application intermediate sub-layer), EL (european radio layer) and ALE (adaptation layer) layer operation of the security connection, so as to generate a final security protocol data packet. Meanwhile, the communication host transmits the relevant state information communicated with the radio block center RBC to the interlocking host. The data format of the status information communicated by the communicator host to the interlocking host is shown in table 1 below.
TABLE 1
The primary and standby identifiers are used for identifying whether the communication machine currently transmitting data to the interlocking machine is in a primary state or a standby state, and the primary and standby identifiers 1 in the table 1 represent that the current communication machine is a communication machine host.
And synchronizing the safety data and the application data between the communication host and the communication standby, wherein the safety data are real-time synchronization, and the synchronization of the application data can be selected according to the configuration of the synchronization of the application data. The security data comprises EC, SAI (security application middle sublayer) sequence number, KSMAC (session key), ALE (adaptation layer) sequence number 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 lifted to the communication host and continues to communicate with the wireless blocking center RBC along the synchronous security data when the adjacent host is used, and the continuity of the sequence numbers in the security data packets is ensured. The format of the data transmitted from the host to the backup is shown in table 2 below.
TABLE 2
When the communicator host communicates with the RBC of the radio block center, as shown in fig. 3, the communicator host and the communicator standby respectively establish peer TCP (Transmission Control Protocol ) or IP (Internet Protocol, internet protocol) connection with the RBC-se:Sub>A and RBC-B of the radio block center, alternatively, the communicator and the RBC of the radio block center may be the TCP protocol or the IP protocol, which is not limited herein. Wherein the communicator operates in a client-side manner and the radio block center RBC communication operates in a server-side manner. The communication host machine is used as an initiator of a safety communication protocol, and sends safety data to the communication standby machine while directly sending a safety protocol data packet to the wireless block center RBC, wherein the communication standby machine is responsible for synchronizing the safety data and application data sent by the communication host machine.
In particular, 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, the data transmitted from the interlock device 30 to the radio block center RBC is referred to as uplink data, and the data transmitted from the radio block center RBC to the interlock device 30 is referred to as downlink data. Since the downstream data application layer from the radio block center RBC to the interlock 30 contains only two bytes of frame header and no valid application layer data, the downstream data packet is not transmitted to the interlock 30 after reaching the communicator 20 and completing the security layer check, and only the communication status is fed back to the interlock 30. The communicator 20 judges whether the communication connection with the radio block center RBC is normal or not according to the security layer checking result, and sends the judging result and other state data to the interlocking host.
In order to ensure that the original secure connection can be kept uninterrupted when the communication host fails, all parameters related to the secure connection must be synchronized between the communication host and the communication standby. After the communication machine is upgraded to the communication machine host, the communication machine standby machine should continue to use the relevant parameters of the original synchronous security protocol to complete the packaging process of the security protocol data packet.
It should be noted that, the execution period of the communicator may be 200ms, the communication period may be 400ms, and the communicator host sends the security protocol data packet to the radio block center RBC every 400 ms. Under normal conditions, the secure protocol data packet received before and after the RBC slave communication machine switches the master and slave communication machines has a time difference of one communication cycle at most. When the communication host machine has physical connection fault, the TCP connection of the communication host machine is interrupted and the standby switching of the communication host machine is caused. Before judging the connection interruption, in order to ensure that the RBC can continuously receive the effective data from the communication machine in the effective time, the communication machine host still continuously completes the generation and calculation of the security protocol according to the period. After the communication machine main and standby are switched, the continuity of serial numbers is ensured to be maintained in a time range which can be tolerated by the RBC, and communication interaction with the RBC is continued.
The communication interaction between the communicator and the RBC may employ RSSP-II (Railway Signal Safety Protocol, railway signal security communication protocol) for secure communication.
In an embodiment of the present invention, as shown in fig. 5, the process of establishing a security module connection between the host computer of the communication device and the RBC of the wireless block center includes:
s101, a connection request is sent to the radio block center.
S102, when first permission information for the connection request fed back by the wireless block center is received, a data request is sent to the wireless block center.
And S103, when receiving second permission information for the data request fed back by the wireless block center, sending initialization data to the wireless block center so as to establish communication connection with the wireless block center.
Specifically, the communicator 20 acts as an initiator, the radio block center RBC acts as a responder, and the connection is initiated by the application layer of the communicator 20 and finally established through sequential interaction of the bottom messages of the two parties. As shown in fig. 6, the communication device 20 (i.e. the customer service end) firstly 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 communication device 20, the radio block center RBC replies an AU2 data packet (i.e. the first permission information) to the communication device 20, after the communication device 20 receives the AU2 data packet sent by the radio block center RBC, the communication device 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 communication device 20, the radio block center RBC sends an AR data packet (i.e. the second permission information) to the communication device 20, after the radio block center receives the ECSTART data packet sent by the communication device 20, the ECSTART data packet (i.e. the initialization data) is sent to the communication device 20, so as to perform time stamping or the EC counter initialization, and then establish a connection with the radio block center RBC. After communication is established, the radio block center RBC sends a DATA packet to the communicator 20, and after the communicator 20 receives the DATA packet sent by the radio block center RBC, the communicator also sends the DATA packet to the radio block center RBC, the two parties periodically exchange the DATA packet, and DATA exchange in the establishment process of the communicator and the radio block center RBC safety module is carried out through the safety layers of the two parties.
More specifically, when the error occurs in the analysis data during the communication process between the communicator 20 and the RBC, and during the normal communication process, different processing measures are adopted according to the severity of the fault, and corresponding fault codes are recorded, so as to facilitate the positioning and the cause investigation of the problem. Specific reason codes are shown in table 3 below:
TABLE 3 Table 3
In one embodiment of the present invention, as shown in fig. 4, the first communication device 21 and the second communication device 22 have four working states, namely, a shutdown state, a main state, a standby state and an off-line state, and the first communication device 21 is configured to: when the second communication machine 22 is in the non-main state, the machine is switched from the machine halt state to the main state; when the second communication machine 22 is in the active state, the off-line state is switched to the off-line state; switching from the offline state to the hot standby state when the synchronization of the data of the second communication machine 22 in the offline state is successful; when the second communication machine 22 fails in the off-line state, the off-line state is switched to the main state; when the second communication device 22 fails in the standby state, the standby state is switched to the active state.
The configuration, action, and state switching rule of the second communication device 22 are the same as those of the first communication device 21, and will not be described here again.
Specifically, the four states of the communication machine, i.e. shutdown, active, standby and offline, represent respectively:
and (3) stopping the machine: when the communication software does not normally run, the communication machine is in a shutdown state;
the main state is as follows: the communication machine is normally communicated with the RBC and the interlocking main machine, receives all external inputs to carry out communication operation, and outputs operation results to the outside;
hot standby state: the communication machine is normally communicated with the RBC and the interlocking host, 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 to the outside;
offline state: meaning that the communicator software is running but not in the hot standby/active condition.
The initial state of the communication machine defaults to the shutdown state, the ending state defaults to the shutdown state, and the rest states are all intermediate states of the communication machine.
More specifically, as shown in fig. 4, when the communication machine main machine fails to stop, the main machine is switched to the stop state, when the communication machine 20 in the off-line state fails to stop, the off-line state is switched to the stop state, when the communication machine 20 in the hot standby state fails to stop, the hot standby state is switched to the stop state, that is, when the communication machine 20 in any state fails to stop, the current state is switched to the stop state. In addition, when a backup failure occurs in the communication device 20 in the backup state, the backup state is switched to the offline state.
According to one embodiment of the present invention, each of the first communication device 21 and the second communication device 22 has a display panel on which at least one of a communication lamp, a main lamp, a standby lamp, a first trouble lamp, and a second trouble lamp is provided. The communication lamp is normally turned on to indicate that the communication of the corresponding communication device 20 is normal, the communication lamp flashes to indicate that the communication of the corresponding communication device 20 is interrupted during the establishment of the communication connection of the corresponding communication device 20, and the communication lamp goes off to indicate that the communication of the corresponding communication device 20 is failed; the main light is normally on to indicate that the corresponding communication device 20 is in the main state, and the main light is off to indicate that the corresponding communication device 20 is in the non-main state; the standby light is normally on to indicate that the corresponding communication machine 20 is in a standby state, and the standby light is off to indicate that the corresponding communication machine 20 is in a non-standby state; the first fault light is normally on to indicate that the corresponding communicator 20 and communication are normal, and the first fault light is off to indicate that the corresponding communicator 20 or communication is faulty; the second fault light being normally on indicates that the system control board of the corresponding communicator 20 is operating normally and the second fault light being off indicates that the system control board of the corresponding communicator 20 is malfunctioning.
Specifically, in order to provide the maintenance personnel with the operation state of the communicator in real time, a state indicating disk of the communicator may be provided while being displayed in the form of an indicating lamp. At least one of the communication light, the main light, the standby light, the first fault light and the second fault light is arranged on the indicating disc, and the communication machine 20 with different states and the system control board thereof can be represented by different indication lights and states on the indicating disc.
More specifically, the communication light of the host computer of the communication machine is always on to indicate that the ethernet and the interlocking machine 30 are in communication, and the communication light of the standby computer of the communication machine is always on to indicate that the ethernet and the host computer of the communication machine are in communication; the communication lamp flash of the host computer of the communication machine indicates that the communication system establishes a safe connection in the safety communication establishment process; the communication lamp of the communication machine host is turned off to indicate the communication failure of the ethernet and the interlocking machine 30, and the communication lamp of the communication machine standby is turned off to indicate the communication failure of the ethernet and the communication machine host. The main light of the first communication device 21 is normally on to indicate a main state, the standby light is normally on to indicate a standby state, and the main light and the standby light are off to indicate a non-main state and a non-standby state; the usage of the main and standby lamps of the second communication device 22 is the same as that of the first communication device 21, and will not be described here again. When the first fault lamp of the communicator 20, namely the indication disc fault lamp is normally on, the current communicator 20 equipment and communication are normal, and when the first fault lamp is off, the current communicator 20 equipment or communication is faulty; when the second trouble light of the communicator 20, i.e., the system control board trouble light, is normally on, it indicates that the system control board is operating normally, and when the second trouble light is off, it indicates that the system control board is malfunctioning.
Fig. 7 is a communication schematic diagram of an implementation structure of a communicator when communicating with a radio block center in an interlock system according to an embodiment of the present invention.
As shown in fig. 7, the communicator 20 is connected to the wireless block center RBC, the interlocking device 30 and the adjacent communicator 20, and also communicates with the security platform 200, and the security platform 200 is provided with a reverse board, so that reverse logic control can be implemented, and when the communicator main machine fails, standby switching of the communicator main machine is implemented through the reverse logic control of the reverse board.
Fig. 8 is a schematic diagram of an implementation structure of a communication device according to an embodiment of the present invention for communicating with a radio block center.
In the embodiment of the present invention, as shown in fig. 8, the number of the radio block centers RBC is two, and the number is respectively denoted as se:Sub>A first radio block center RBC-se:Sub>A and se:Sub>A second radio block center RBC-B, and the first radio block center RBC-se:Sub>A and the second radio block center RBC-B form se:Sub>A two-out-of-two architecture, and the first radio block center RBC-se:Sub>A and the second radio block center RBC-B are used for communication with the first communicator 21 and the second communicator 22, such as communication through ethernet.
When the first and second wireless block centers RBC-se:Sub>A and RBC-B communicate with the first and second communication devices 21 and 22 vise:Sub>A ethernet, se:Sub>A switch may be used as se:Sub>A bridge for communicating information.
In one embodiment of the present invention, as shown in fig. 8, the implementation structure 100 of the communicator when communicating with the radio block center in the interlock system further includes: the first switch S-A and the second switch S-B are used for establishing communication connection between the first wireless block center RBC-A and the second wireless block center RBC-B and the first communicator 21 and the second communicator 22.
Specifically, the first switch S-se:Sup>A is configured to establish se:Sup>A communication connection of ethernet (i.e., se:Sup>A network) between the communicator 20 and the radio block center RBC, the second switch S-B is configured to establish se:Sup>A communication connection of ethernet (i.e., B network) between the communicator 20 and the radio block center RBC, and the first switch S-se:Sup>A and the second switch S-B are configured to exchange AU1 datse:Sup>A packets, AU2 datse:Sup>A packets, AU3 datse:Sup>A packets, AR datse:Sup>A packets, and subsequent ECSTART datse:Sup>A packets and datse:Sup>A packets when the communicator 20 and the radio block center RBC construct the security module.
As an example, referring to fig. 2 (switch not shown), the first and second wireless occlusion centers RBC-se:Sub>A and RBC-B each have se:Sub>A first ethernet interface se:Sub>A and se:Sub>A second ethernet interface B, and the first and second communicators 21 and 22 each have se:Sub>A third ethernet interface se:Sub>A 'and se:Sub>A fourth ethernet interface B'; the first ethernet interface se:Sub>A of the first wireless block center RBC-se:Sub>A, the first ethernet interface se:Sub>A of the second wireless block center RBC-se:Sub>A, and the third ethernet interface se:Sub>A 'of the second communication device 21 are correspondingly connected to the third ethernet interface se:Sub>A' of the first communication device 21 through the first switch S-se:Sub>A. 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 second communicator 22, which is correspondingly connected to the first communicator 21 via the second switch S-B.
The communication machine can independently complete the receiving and sending of communication protocol data, realize the communication and control between the train and the platform, and simultaneously share the communication ring network in the interlocking system with the interlocking machine to carry out information transmission between the communication machine and the interlocking machine, so that the load and the load of a CPU board of the interlocking machine can be reduced, and the risk of overtime operation of the interlocking machine system is reduced. The communication machine constructs a signal safety communication protocol with the wireless block center through the Ethernet interface and completes periodic information interaction, so that the railway signal safety communication protocol implementation scheme can be integrated into single signal equipment, the modularization of the signal equipment is realized, and the complexity of the signal equipment of the railway signal system is reduced. The integrated interlocking system can be used for communication among signal devices using a railway safety communication protocol, provides a feasible solution for the signal devices of the railway signal system, and provides support for rapid development of the railway signal system. The rationality and the operation safety of the signal equipment of the railway signal system 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, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may 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). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may 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 is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. An implementation structure of a communication machine for communicating with a radio block center in an interlock system, the structure comprising: the interlocking system comprises an internal communication ring network, a first communication machine, a second communication machine, a first interlocking machine and a second interlocking machine;
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, the first communication machine and the second communication machine communicate through the interlocking system internal communication ring network, and the first communication machine and the second communication machine are all used for communicating with the wireless blocking center;
one of the first communication machine and the second communication machine is a communication machine host, and the other is a communication machine standby;
the communication host is used for processing the communication information from the interlocking host and the state information of the interlocking host, processing the communication information from the wireless block center, completing the conversion and transmission of the interaction information between the interlocking host and the wireless block center, and sending the state information communicated with the wireless block center to the interlocking host;
the wireless block center is provided with a first Ethernet interface and a second Ethernet interface, and the first communication machine and the second communication machine are respectively provided with a third Ethernet interface and a fourth Ethernet interface;
the third Ethernet interfaces of the first communication machine and the second communication machine are used for being connected with the first Ethernet interface of the wireless block center, and the fourth Ethernet interfaces of the first communication machine and the second communication machine are used for being connected with the second Ethernet interface of the wireless block center.
2. The implementation structure according to claim 1, wherein one of the first interlocking machine and the second interlocking machine is an interlocking main machine, and the other is an interlocking standby machine;
the communication machine is used for synchronizing the information of the communication machine host, converting the communication machine host into the communication machine host when the communication machine host fails, and communicating with the interlocking host and the wireless blocking center respectively based on the synchronization information.
3. The implementation structure according to claim 2, wherein the first communication machine and the second communication machine each have four working states, namely a shutdown state, a main state, a hot standby state and an offline state, and the first communication machine is configured to:
when the second communication machine is in a non-main state, the second communication machine is switched from the stop state to the main state;
when the second communication machine is in the main state, the second communication machine is switched from the shutdown state to the offline state;
switching from the offline state to the hot standby state when the data of the second communication machine is successfully synchronized in the offline state;
when the second communication machine fails in the off-line state, switching from the off-line state to the main state;
and when the second communication machine fails in the hot standby state, switching from the hot standby state to the main state.
4. The implementation structure according to claim 3, wherein the first communicator and the second communicator each have a representation disc on which at least one of a communication lamp, a main lamp, a standby lamp, a first failure lamp, and a second failure lamp is provided;
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 of the corresponding communication machine is in communication connection establishment, and the communication lamp goes off to indicate that the communication of the corresponding communication machine is in fault;
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 a standby state, and the standby lamp is off to indicate that the corresponding communication machine is in a non-standby state;
the first fault lamp is normally on to indicate that the corresponding communication machine and communication are normal, and the first fault lamp is off to indicate that the corresponding communication machine or communication is faulty;
the second fault lamp is normally on to indicate that the system control board of the corresponding communication machine is normal in operation, and the second fault lamp is off to indicate that the system control board is faulty.
5. The implementation architecture of claim 2, wherein the communicator host is further configured to:
transmitting a connection request to the wireless block center;
when receiving first permission information fed back by the wireless block center for the connection request, sending a data request to the wireless block center;
and when receiving second permission information fed back by the radio block center for the data request, sending initialization data to the radio block center so as to establish communication connection with the radio block center.
6. The implementation structure according to claim 1, wherein the number of radio block centers is two, and is 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-out-of-two architecture, and the first radio block center and the second radio block center are both used for communication with the first communication device and the second communication device.
7. The implementation architecture of claim 6, wherein the implementation architecture further comprises:
the first switch and the second switch are used for establishing communication connection between the first wireless block center and the second wireless block center and the first communication machine and the second communication machine.
8. The implementation structure of claim 7, wherein,
a first Ethernet interface of the first wireless block center and a first Ethernet interface of the second wireless block center are correspondingly connected with a third Ethernet interface of the first communication machine and a third Ethernet interface of the second communication machine through the first switch;
and the second Ethernet interfaces of the first wireless block center and the second wireless block center are correspondingly connected with the fourth Ethernet interfaces of the first communication machine and the second communication machine through the second switch.
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