CN111262888B - Train networking control system - Google Patents
Train networking control system Download PDFInfo
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- CN111262888B CN111262888B CN202010357176.8A CN202010357176A CN111262888B CN 111262888 B CN111262888 B CN 111262888B CN 202010357176 A CN202010357176 A CN 202010357176A CN 111262888 B CN111262888 B CN 111262888B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/161—Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0018—Communication with or on the vehicle or vehicle train
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/326—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the transport layer [OSI layer 4]
Abstract
The application discloses train networking control's system, including the equipment controller that corresponds with the equipment in the train, first ethernet cable, the TRDP network card that links to each other through first net gape and equipment controller, the TRDP network card still includes two at least second net gapes, first network chip, second network chip, the control processing chip that link to each other with the TRDP train network system, wherein: and the equipment controller is used for transmitting the data of the equipment to the TRDP train network system through the TRDP network card, receiving the control command sent by the TRDP train network system through the TRDP network card and controlling the equipment according to the control command. According to the technical scheme, the device controller and the TRDP train network system are communicated in a two-way mode through the TRDP network card, so that the influence on the operation of the device controller is reduced, the redundant communication of the train network control system can be achieved through the second network ports, and the reliability of the system is improved.
Description
Technical Field
The application relates to the technical field of rail transit, in particular to a train networking control system.
Background
With the development of the national rail transit industry, the corresponding Train communication technology is also developed, wherein the development of a Train control network (network for controlling trains) is more prominent, and the replacement of an MVB (Multifunction vehicle bus) Train control network on a 250 km motor Train unit has been realized by a TRDP (Train Real-time Data Protocol) Train control network. The equipment controllers corresponding to the sub-equipments in the train also make much effort to access the TRDP train control network.
Referring to fig. 1, it shows a schematic structural diagram of an existing train networking control system, which integrates open source TRDP protocol stack software into existing software in an equipment controller corresponding to train equipment (air conditioners, decorative lamps, doors, etc.), connects the equipment controller with a train network system (i.e., the above-mentioned TRDP train control network), so that the equipment controller collects operation data of the equipment and sends the operation data to the train network system through the TRDP protocol stack software, then, the train network system monitors the operation state of the equipment according to the operation data, and sends a control command to the equipment controller through the TRDP protocol stack software, and the equipment controller controls the train equipment according to the control command. However, integrating the open source TRDP protocol stack software into the device controller requires the device controller to have a powerful MCU (Microcontroller Unit) and sufficient storage space to support the operation of the TRDP protocol stack software, and the operation of the TRDP protocol stack software occupies part of MCU operation resources, which may affect the operation of the device controller, and for a single-portal device controller, the system may not implement redundant communication, which may reduce the reliability of the train networking control system.
In summary, how to reduce the influence on the operation of the device controller and improve the reliability of the train networking control system is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present application is to provide a system for train networking control, which reduces the influence on the operation of a device controller and improves the reliability of the system for train networking control.
In order to achieve the above purpose, the present application provides the following technical solutions:
a train networking control system comprises a device controller corresponding to devices in a train, a first Ethernet cable, a TRDP network card connected with a first network port of the device controller through the first Ethernet cable, at least two second network ports used for being connected with a TRDP train network system, a first network chip correspondingly connected with the first network ports, a second network chip correspondingly connected with the second network ports, and a control processing chip connected with the first network chip and the second network chip, wherein:
the device controller is used for transmitting data of the device to the TRDP train network system through the TRDP network card, receiving a control command sent by the TRDP train network system through the TRDP network card, and controlling the device according to the control command;
the first network chip and the second network chip are used for receiving and transmitting data transmitted by corresponding network ports, and the control processing chip processes the data received and transmitted by the TRDP network card.
Preferably, the TRDP network card is configured to receive, through each second portal, a control command sent by the TRDP train network system, and send the control command received by each second portal to the device controller;
the equipment controller is used for carrying out redundant control on a plurality of received control commands so as to control the equipment by using one control command.
Preferably, the TRDP network card is configured to receive, through each second portal, a control command sent by the TRDP train network system, and send, to the device controller, the control command received by one of the second portals.
Preferably, the device controller and the TRDP network card each include a TRDP control/application data protocol applied to an application layer during data transmission, and a TCP/UDP protocol stack applied to a transmission layer, a network layer, a data link layer, and a physical layer, and the TRDP network card further includes a TRDP full-function protocol stack applied to the application layer, a presentation layer, and a session layer during data transmission, where:
and the data based on the TRDP is transmitted through a TRDP control/application data protocol and a TCP/UDP protocol stack in the equipment controller, a TCP/UDP protocol stack and a TRDP control/application data protocol and a TRDP full-function protocol stack in the TRDP network card, and a TCP/UDP protocol stack and a TRDP full-function protocol stack in the TRDP train network system.
Preferably, the device controller further comprises a device controller service protocol, wherein:
and data based on the TCP/UDP protocol is transmitted through an equipment controller service protocol and a TCP/UDP protocol stack in the equipment controller, a TCP/UDP protocol stack in the TRDP network card, a TCP/UDP protocol stack in the TRDP train network system and a train network service protocol.
Preferably, each second portal in the TRDP network card is enabled to transmit data to the TRDP train network system through a TRDP full-function protocol stack in the TRDP network card, and the TRDP network card is enabled to receive a control command of the TRDP train network system through each second portal and send the control command received by one of the second portals to the device controller.
Preferably, when the TRDP network card includes two second ports, the TRDP network card is specifically configured to determine whether the control commands transmitted by the two second ports are received within a preset time period, and if the control commands transmitted by the two second ports are received within the preset time period, comparing whether the control commands transmitted by the two second network ports are the same or not, if so, sending the control command transmitted by the second network port which is obtained according to the configuration parameters and is preferred to trust to the equipment controller, and if not, reporting the contrast error and sending a control command transmitted by the second network port with priority trust obtained according to the configuration parameters to the equipment controller, and reporting the network port error and sending the received control command to the equipment controller if receiving data transmitted by the second network port within the preset time period.
Preferably, the configuration parameters are received through the device controller and a TRDP control/application data protocol in the TRDP network card, so that the TRDP network card configures the corresponding control parameters according to the configuration parameters, where the control parameters include the preset time period and a second network port preferred to trust.
Preferably, each second network port of the TRDP network card is connected to the TRDP train network system through a second ethernet network cable.
Preferably, the TRDP network card further includes a third network port connected to a TCP/UDP-based communication network system other than the TRDP train network system, and a third network chip connected to the control processing chip and in butt joint with the third network port.
Preferably, the third network port of the TRDP network card is connected to a TCP/UDP-based communication network system other than the TRDP train network system through a third ethernet network cable.
The application provides a train networking control's system, including the equipment controller that corresponds with the equipment in the train, first ethernet net twine, be provided with first net gape and the TRDP network card that links to each other with the equipment controller through first ethernet net twine and first net gape, the TRDP network card still includes at least two second net gapes that are used for linking to each other with the TRDP train network system, correspond the first network chip of being connected with first net gape, correspond the second network chip of being connected with the second net gape, the control processing chip that links to each other with first network chip and second network chip, wherein: the device controller is used for transmitting data of the device to the TRDP train network system through the TRDP network card, receiving a control command sent by the TRDP train network system through the TRDP network card and controlling the device according to the control command; the first network chip and the second network chip are used for receiving and transmitting data transmitted by the corresponding network ports and controlling the processing chip to process the data received and transmitted by the TRDP network card.
According to the technical scheme, the TRDP network card with the first network port and the at least two second network ports is arranged, bidirectional communication between the equipment controller and the TRDP train network system is achieved through the TRDP network card, and communication between the equipment controller and the TRDP train network system is achieved without integrating open source TRDP protocol stack software in the equipment controller, so that occupation of storage space of the equipment controller and MCU operation resources can be reduced while train networking control is achieved, performance requirements of an MCU in the equipment controller are lowered, influence on operation of the equipment controller can be reduced, and the TRDP network card is provided with the at least two second network ports connected with the TRDP train network system, so that redundant communication of the train networking control system can be achieved, and reliability of the train networking control system can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a conventional train networking control system;
fig. 2 is a schematic structural diagram of a train networking control system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another train networking control system provided in an embodiment of the present application;
fig. 4 is a schematic diagram of TRDP data transmission provided in an embodiment of the present application;
FIG. 5 is a schematic diagram of network communications in layers;
fig. 6 is a functional schematic diagram of a TRDP full-function protocol stack and a TRDP control/application data protocol provided in an embodiment of the present application;
FIG. 7 is a diagram illustrating TCP/UDP data transmission according to an embodiment of the present application;
fig. 8 is a diagram of another train networking control system according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 2, which shows a schematic structural diagram of a train networking control system provided in an embodiment of the present application, the train networking control system provided in the embodiment of the present application may include an equipment controller 1 corresponding to equipment in a train, a first ethernet cable, a TRDP network card 2 provided with a first network port and connected to the equipment controller 1 through the first ethernet cable and the first network port, and the TRDP network card 2 may further include at least two second network ports for connecting to the TRDP train network system 3, a first network chip 21 connected to the first network port, a second network chip 22 connected to the second network port, and a control processing chip 23 connected to the first network chip 21 and the second network chip 22, where:
and the equipment controller 1 is used for transmitting the data of the equipment to the TRDP train network system 3 through the TRDP network card 2, receiving the control command sent by the TRDP train network system 3 through the TRDP network card 2, and controlling the equipment according to the control command.
The train networking control system provided by the application comprises an equipment controller 1, a first Ethernet cable and a TRDP network card 2, wherein the equipment controller 1 corresponds to equipment in a train and can acquire relevant data (specifically, real-time running data, equipment parameters and the like) of the equipment in the train; the TRDP network card 2 is provided with a first network port and at least two second network ports, all the second network ports of the TRDP network card 2 are connected with an external TRDP train network system 3 (connected through an external network), so that the train networking control system can have a plurality of channels to be connected with the TRDP train network system 3, thereby facilitating the redundant communication of the train networking control system, and improving the communication reliability of the system, and the first network port of the TRDP network card 2 can be connected with the equipment controller 1 through a first ethernet network cable (connected through an internal network), wherein, because the data transmission protocol of the ethernet network cable is similar to the data transmission protocol of the TRDP network card 2, the complexity of data conversion can be reduced, thereby the complexity of the functions of the TRDP network card 2 can be reduced. In addition, in the TRDP network card 2, a first network chip 21 corresponding to a first network port is disposed at a first network port to transmit and receive data transmitted on the first network port corresponding to the first network port by using the first network chip 21, a second network chip 22 corresponding to a second network port is disposed at a second network port to transmit and receive data transmitted on the second network port corresponding to the second network port by using the second network chip 22, and the first network chip 21 and the second network chip 22 are mainly applied to a data link layer and a physical layer during data transmission, and the TRDP network card 2 further includes a control processing chip 23 connected to the first network chip 21 and each second network chip 22 inside, where the control processing chip 23 is used to process data transmitted and received by the TRDP network card 2, specifically, to control data transmitted between the device controller 1 and the TRDP train 3 to implement redundant communication, and also to process protocols included in the TRDP network system (such as parsing and packaging), the control Processing chip 23 may be one or a combination of several of a CPU (Central Processing Unit/Processor), an MCU (microprogrammed control Unit), and an FPGA (Field-programmable gate Array).
In a train networking control system, a device controller 1 and a TRDP train network system 3 can realize bidirectional communication through a TRDP network card 2 arranged between the two, specifically, the device controller 1 can transmit acquired data of a device to the TRDP train network system 3 through the TRDP network card 2, so that the TRDP train network system 3 can acquire the running state of the device in a train according to the received data, and the TRDP train network system 3 can send a control command to the device controller 1 through the TRDP network card 2, so that the device controller 1 can control the corresponding device in the train according to the control command.
Compared with a series of problems caused by the fact that open source TRDP protocol stack software is integrated in the equipment controller 1 to achieve train networking control, the method can achieve bidirectional communication between the equipment controller 1 and the TRDP train network system 3 through the set TRDP network card 2 to achieve train networking control, the TRDP network card 2 is independent of the equipment controller 1, therefore, the influence of the train networking control on normal operation of the equipment controller 1 can be reduced, and the TRDP network card 2 is provided with a plurality of second network ports connected with the TRDP train network system 3, therefore, the train networking control system can be provided with a plurality of channels to be connected with the TRDP train network system 3 to achieve redundant communication, and accordingly reliability of system communication is improved.
It should be noted that, in fig. 2 and the following figures, the TRDP network card 2 includes two second ports for example, and the TRDP network card 2 includes a greater number of second ports similarly, which is not described herein again.
According to the technical scheme, the TRDP network card with the first network port and the at least two second network ports is arranged, bidirectional communication between the equipment controller and the TRDP train network system is achieved through the TRDP network card, and communication between the equipment controller and the TRDP train network system is achieved without integrating open source TRDP protocol stack software in the equipment controller, so that occupation of storage space of the equipment controller and MCU operation resources can be reduced while train networking control is achieved, performance requirements of an MCU in the equipment controller are lowered, influence on operation of the equipment controller can be reduced, and the TRDP network card is provided with the at least two second network ports connected with the TRDP train network system, so that redundant communication of the train networking control system can be achieved, and reliability of the train networking control system can be improved.
In the system for train networking control provided by the embodiment of the application, the TRDP network card 2 is configured to receive the control command sent by the TRDP train network system 3 through each second portal, and send the control command received by each second portal to the device controller 1;
the device controller 1 is used for performing redundant control on a plurality of received control commands to control a device with one control command.
In the train networking control system provided by the application, redundant communication is realized, and meanwhile, redundant control can be realized by the equipment controller 1, so that the equipment controller 1 can only process one control command in a plurality of control commands which are simultaneously in redundant communication. Specifically, the TRDP network card 2 may receive the control command sent by the TRDP train network system 3 through each set second portal, and may send the control command received by all the second portals to the device controller 1, and after receiving the control command transmitted by each second portal of the TRDP network card 2 through the first portal, the device controller 1 may perform redundant control on the multiple control commands, so that the device is controlled by using only one control command, and the remaining control commands may all be used as redundant backups.
In the train networking control system provided in the embodiment of the present application, the TRDP network card 2 is configured to receive the control command sent by the TRDP train network system 3 through each second portal, and send the control command received by one of the second portals to the device controller 1.
In the train networking control system provided by the application, the TRDP network card 2 can realize redundant communication through the control processing chip 23 and simultaneously realize redundant control, so that the equipment controller 1 can only receive one control command, thereby reducing the processing complexity of the equipment controller 1, specifically, the control processing chip 23 in the TRDP network card 2 can receive the control command sent by the TRDP train network system 3 through a plurality of second network interfaces (i.e. realize redundant communication), and only send the control command received by one of the second network interfaces to the equipment controller 1, so that the equipment controller 1 executes the operation corresponding to the control command, because it does not need to perform redundant control through the equipment controller 1, thereby reducing the complexity of the equipment controller 1, and because the equipment controller 1 does not need to process the redundant control command through the above process, therefore, the processing complexity of the device controller 1 can be reduced.
In addition, after receiving the data transmitted by the device controller 1, the TRDP network card 2 may send the received data to the TRDP train network system 3 through each second portal, so that the TRDP train network system 3 may receive data from a plurality of second portals to implement redundant communication, and when receiving the data transmitted by each second portal, the TRDP train network system 3 may use only the data transmitted by one of the second portals as valid data, and other data may be backed up.
Referring to fig. 3 and 4, in which fig. 3 shows a schematic structural diagram of another train networking control system provided in the embodiment of the present application, and fig. 4 shows a schematic TRDP data transmission diagram provided in the embodiment of the present application. In the train networking control system provided in the embodiment of the present application, the control processing chip 23 in the device controller 1 and the TRDP network card 2 may both include a TRDP control/application data protocol applied to an application layer during data transmission and a TCP/UDP protocol stack applied to a transmission layer, a network layer, a data link layer, and a physical layer, and the TRDP network card 2 may further include a TRDP full-function protocol stack applied to an application layer, a presentation layer, and a session layer during data transmission; wherein:
the data based on the TRDP is transmitted through a TRDP control/application data protocol and a TCP/UDP protocol stack in the device controller 1, a TCP/UDP protocol stack and a TRDP control/application data protocol and a TRDP full-function protocol stack in the TRDP network card 2, and a TCP/UDP protocol stack and a TRDP full-function protocol stack in the TRDP train network system 3.
In the network communication process, mainly aiming at the process of packing/unpacking messages of each protocol layer, a message sending party packs the messages according to a protocol, a message receiving party unpacks the messages according to a data protocol, a multi-layer protocol message combination layer protocol stack model packs protocol message information step by step from an upper layer protocol to a lower layer protocol, and the information functions in each layer are different, specifically referring to fig. 5, which shows a schematic diagram of network communication in each layer.
Based on the above process, in the train networking control system provided by the present application, the control processing chips 23 in the device controller 1 and the TRDP network card 2 both include a TRDP control/application data protocol and a TCP/UDP protocol stack, and the control processing chip 23 in the TRDP network card 2 further includes a TRDP full-function protocol stack, where the TRDP train network system 3 also includes a TRDP full-function protocol stack and a TCP/UDP protocol stack, and the TRDP control/application data protocol in the device controller 1 is an added part to the TRDP data in the device controller 1 (only communication of TRDP control parameters and TRDP application data, a non-full-function TRDP protocol stack, and task strength are small).
The TCP/UDP protocol stack is a network communication transmission protocol stack, is used for TCP/UDP protocol message transmission, and corresponds to a transmission layer, a network layer, a data link layer and a physical layer (see fig. 5 specifically), the TRDP control/application data protocol and the TRDP full-function protocol stack are all application protocol layers based on the TCP/UDP protocol stack, wherein the TRDP control/application data protocol is applied to the application layer during data transmission (only communication of TRDP control parameters and TRDP application data, the non-full-function TRDP protocol stack, the task strength is small), and includes TRDP control data and TRDP application data, the TRDP control data are some control parameters (for example, a preset time period for enabling the TRDP network card 2 to determine whether to receive a control command transmitted by the second network port, a second network port with preferential trust set by the TRDP network card 2 when receiving a different control command through the second network port, etc.), the control parameters can be configured and adjusted according to the received configuration parameters, so that the control parameters can be better suitable for train networking, and TRDP application data is communicated with the equipment controller 1 after being subjected to redundancy control; the TRDP full-function protocol stack is applied to an application layer, a presentation layer, and a session layer during data transmission, so as to implement docking of a TRDP network and implement control requirements (an unpacking protocol, a communication mode, a topology sequence, a communication port, a checksum, and the like) of all TRDP communication protocols, and specifically, refer to fig. 6, which shows a functional diagram of the TRDP full-function protocol stack and the TRDP control/application data protocol provided in this embodiment of the present application.
In fig. 4, double arrows indicate data paths of the TRDP, thick double arrows indicate "TRDP full function protocol stack" communication, and thin arrows indicate "TRDP control/application data protocol".
Referring to fig. 7, which shows a schematic diagram of TCP/UDP data transmission provided in the embodiment of the present application, a system for train networking control provided in the embodiment of the present application, the device controller 1 may further include a device controller service protocol, where:
data based on the TCP/UDP protocol is transmitted through an equipment controller service protocol and a TCP/UDP protocol stack in the equipment controller 1, a TCP/UDP protocol stack in the TRDP network card 2, a TCP/UDP protocol stack in the TRDP train network system 3 and a train network service protocol.
In the train networking control system provided by the application, the equipment controller 1 further comprises an equipment controller service protocol, the equipment controller service protocol is a network service protocol realized by the equipment controller 1 and used for system maintenance or other functions, and the TRDP train network system 3 further comprises a train network service protocol, the train network service protocol is an original train network service protocol and used for system maintenance or other functions.
The data based on the TCP/UDP protocol may be transmitted through a device controller service protocol and a TCP/UDP protocol stack in the device controller 1, a TCP/UDP protocol stack in the TRDP network card 2, a TCP/UDP protocol stack in the TRDP train network system 3, and a train network service protocol, specifically as shown in fig. 7, an arrow therein indicates a transmission path of the data based on the TCP/UDP protocol, that is, the data based on the TCP/UDP protocol in the device controller 1 may be loaded into the TRDP train network system 3 in a transparent transmission manner, and the set TRDP network card 2 does not process the data, but only plays a role in transferring the data, so that the original TCP/UDP protocol service of the device controller 1 may be maintained.
In the train networking control system provided by the embodiment of the application, each second gateway in the TRDP network card 2 is enabled to transmit data to the TRDP train network system 3 through the TRDP full-function protocol stack in the TRDP network card 2, and the TRDP network card 2 is enabled to receive the control command of the TRDP train network system 3 through each second gateway and send the control command received by one second gateway to the equipment controller 1.
In the train networking control system provided by the application, redundant communication and redundant control can be realized through a full-function TRDP protocol stack in the TRDP network card 2, specifically, each second network port in the TRDP network card 2 can transmit data to the TRDP train network system 3 through the full-function TRDP protocol stack in the TRDP network card 2, and the TRDP network card 2 can receive a control command of the TRDP train network system 3 through each second network port and send the control command received by one of the second network ports to the equipment controller 1, so that the reliability of data processing of the TRDP train network system 3 is improved, and the complexity of processing of the equipment controller 1 is reduced.
In the train networking control system provided by the embodiment of the application, when the TRDP network card 2 includes two second network ports, the TRDP network card 2 is specifically configured to determine whether the control commands transmitted by the two second network ports are received within a preset time period, and if the control commands transmitted by the two second network ports are received within the preset time period, comparing whether the control commands transmitted by the two second network ports are the same or not, if so, sending the control command transmitted by the second network port which is obtained according to the configuration parameters and is preferred to trust to the equipment controller 1, and if not, reporting the contrast error and sending the control command transmitted by the second network port with priority trust obtained according to the configuration parameters to the equipment controller 1, and reporting the network port error and sending the received control command to the equipment controller 1 if receiving data transmitted by the second network port within a preset time period.
In the train networking control system provided by the present application, when the TRDP network card 2 includes two second network ports, the process of implementing redundancy control by the TRDP network card 2 specifically includes: the TRDP network card 2 determines whether the control commands transmitted by the first second network port and the second network port are received within a preset time, compares whether the control commands transmitted by the two second network ports are the same if the control commands transmitted by the two second network ports are received within a preset time period, sends the control command transmitted by the second network port with priority trust obtained according to the configuration parameters to the device controller 1 if the control commands transmitted by the two second network ports are the same, reports a contrast error and sends the control command transmitted by the second network port with priority trust obtained according to the configuration parameters to the device controller 1 if the control commands transmitted by the two second network ports are different, reports a network port error and sends the received control command to the device controller 1 if the data transmitted by the second network port is received within the preset time period, so that the device controller 1 can receive the control commands and receive a control command as much as possible, and timely reporting is carried out when errors are found so as to take measures in time, thereby improving the reliability of the work of the system for train networking control.
According to the train networking control system provided by the embodiment of the application, the configuration parameters are received through the TRDP control/application data protocol in the equipment controller 1 and the TRDP network card 2, so that the TRDP network card configures the corresponding control parameters according to the configuration parameters, wherein the control parameters comprise a preset time period and a second network port which is trusted preferentially.
In the system for train networking control, configuration parameters may be received through the TRDP control/application data protocol in the device controller 1 and the TRDP network card 2, and then the TRDP network card 2 configures corresponding control parameters (including but not limited to the aforementioned preset time period and the second network port with priority trust) according to the configuration parameters, so as to improve flexibility of train networking control and improve an effect of train networking control.
In the train networking control system provided by the embodiment of the application, each second network port of the TRDP network card 2 is connected to the TRDP train network system 3 through a second ethernet network cable.
The train networking control system provided by the present application may include a plurality of second ethernet cables, and the second ethernet cables may be respectively connected to the second ports of the TRDP network card 2 and respectively connected to the TRDP train network system 3, so as to reduce the complexity of communication between the TRDP network card 2 and the TRDP train network system 3.
Referring to fig. 8, which shows another train networking control system provided in the embodiment of the present application, in the train networking control system provided in the embodiment of the present application, the TRDP network card 2 may further include a third network port connected to a TCP/UDP-based communication network system other than the TRDP train network system 3, and a third network chip 24 connected to the control processing chip and in butt joint with the third network port.
In the train networking control system provided by the present application, the TRDP network card 2 may further include a third network port and a third network chip 24 in butt joint with the control processing chip 23 and the third network port, where the third network port is used for connecting to a TCP/UDP-based communication network system other than the TRDP train network system 3, that is, the train networking control system may be connected to not only the TRDP train network system 3 but also a TCP/UDP-based communication network system other than the TRDP train network system 3, so that a train may be connected to different TCP/UDP-based communication network systems, thereby improving the diversity of controlling networked trains.
For a communication network system based on TCP/UDP except the TRDP train network system 3, the TRDP network card 2 may have a plurality of third ports and third network chips 24 corresponding thereto to implement redundant communication and implement redundant control by the TRDP network card 2, and the number of the communication network systems based on TCP/UDP except the TRDP train network system 3 may also be multiple, at this time, more third ports and third network chips 24 may be disposed in the TRDP network card 2, so that each communication network system based on TCP/UDP except the TRDP train network system 3 may correspond to a plurality of third ports and third network chips 24 corresponding thereto to implement redundant communication and implement redundant control by the TRDP network card 2.
It should be noted that the function of the third port is similar to that of the second port mentioned above, and the function of the third network chip 24 is similar to that of the second network chip 22 mentioned above corresponding to the second port, and therefore, the description thereof is omitted.
In the train networking control system provided by the embodiment of the application, the third internet access of the TRDP network card 2 is connected with a TCP/UDP-based communication network system, which is other than the TRDP train network system 3, through a third ethernet network cable.
In the train networking control system provided by the present application, a plurality of third ethernet network cables may be included, and these third ethernet network cables may be respectively connected to the third ports of the TRDP network card 2 and respectively connected to the TCP/UDP-based communication network system other than the TRDP train network system 3, so as to reduce the complexity of communication between the TRDP network card 2 and the TCP/UDP-based communication network system other than the TRDP train network system 3.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include elements inherent in the list. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A train networking control system is characterized by comprising an equipment controller corresponding to equipment in a train, a first Ethernet network cable, a TRDP network card which is provided with a first network port and is connected with the equipment controller through the first Ethernet network cable and the first network port, and the TRDP network card further comprises at least two second network ports used for being connected with a TRDP train network system, a first network chip correspondingly connected with the first network port, a second network chip correspondingly connected with the second network port, and a control processing chip connected with the first network chip and the second network chip, wherein:
the device controller is used for transmitting data of the device to the TRDP train network system through the TRDP network card, receiving a control command sent by the TRDP train network system through the TRDP network card, and controlling the device according to the control command;
the first network chip and the second network chip are used for receiving and transmitting data transmitted by corresponding network ports, and the control processing chip processes the data received and transmitted by the TRDP network card;
the device controller and the control processing chip of the TRDP network card both comprise a TRDP control/application data protocol applied to an application layer during data transmission and a TCP/UDP protocol stack applied to a transmission layer, a network layer, a data link layer and a physical layer, and the control processing chip of the TRDP network card also comprises a TRDP full-function protocol stack applied to the application layer, a presentation layer and a session layer during data transmission, wherein:
the TRDP-based data is transmitted through a TRDP control/application data protocol and a TCP/UDP protocol stack in the equipment controller, a TCP/UDP protocol stack and a TRDP control/application data protocol and a TRDP full-function protocol stack in the TRDP network card, and a TCP/UDP protocol stack and a TRDP full-function protocol stack in the TRDP train network system;
the device controller further comprises a device controller service protocol, wherein:
data based on a TCP/UDP protocol are transmitted through an equipment controller service protocol and a TCP/UDP protocol stack in the equipment controller, a TCP/UDP protocol stack in the TRDP network card, a TCP/UDP protocol stack in the TRDP train network system and a train network service protocol;
and enabling each second network port in the TRDP network card to transmit data to the TRDP train network system through a TRDP full-function protocol stack in the TRDP network card, enabling the TRDP network card to receive a control command of the TRDP train network system through each second network port and sending the control command received by one second network port to the equipment controller.
2. The system for train networking control according to claim 1, wherein the TRDP network card is configured to receive the control command sent by the TRDP train network system through each of the second gateways, and send the control command received by each of the second gateways to the device controller;
the equipment controller is used for carrying out redundant control on a plurality of received control commands so as to control the equipment by using one control command.
3. The train networking control system according to claim 1, wherein when the TRDP network card includes two second ports, the TRDP network card is specifically configured to determine whether the control commands transmitted by the two second ports are received within a preset time period, compare whether the control commands transmitted by the two second ports are the same if the control commands transmitted by the two second ports are received within the preset time period, send the control command transmitted by the second port with priority trust obtained according to the configuration parameter to the device controller if the control commands transmitted by the two second ports are the same, report a comparison error and send the control command transmitted by the second port with priority trust obtained according to the configuration parameter to the device controller if the control commands are not the same, and if the TRDP network card receives data transmitted by one second port within the preset time period, reporting a portal error and sending the received control command to the device controller.
4. The train networking control system according to claim 3, wherein the configuration parameters are received through a TRDP control/application data protocol in the device controller and the TRDP network card, so that the TRDP network card configures the corresponding control parameters according to the configuration parameters, wherein the control parameters include the preset time period and a second internet access preferred to trust.
5. The system for train networking control according to any one of claims 1 to 4, wherein each of the second network ports of the TRDP network card is connected to the TRDP train network system through a second Ethernet cable.
6. The system for train networking control according to claim 5, wherein the TRDP network card further comprises a third network interface for connecting to a TCP/UDP-based communication network system other than the TRDP train network system, and a third network chip interfacing with the third network interface and connected to the control processing chip.
7. The system for train networking control according to claim 6, wherein the third portal of the TRDP network card is connected to a TCP/UDP-based communication network system other than the TRDP train network system through a third ethernet cable.
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| CN112565446B (en) * | 2020-12-14 | 2022-08-23 | 四川长虹电器股份有限公司 | Operation and maintenance management system for cadmium-nickel battery pack |
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| CN207083094U (en) * | 2017-08-25 | 2018-03-09 | 北京卓越信通电子股份有限公司 | A kind of train real-time ethernet network interface card based on TRDP agreements |
| CN208143238U (en) * | 2018-05-22 | 2018-11-23 | 广州众志诚信息科技有限公司 | Railway Ethernet TRDP gateway |
| CN208479662U (en) * | 2018-06-15 | 2019-02-05 | 广州众志诚信息科技有限公司 | Railway ethernet gateway equipment |
| CN110299999B (en) * | 2019-05-20 | 2021-02-09 | 北京交通大学 | Train real-time Ethernet TRDP network card based on Linux platform |
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| CN209454773U (en) * | 2018-11-12 | 2019-10-01 | 中国铁路总公司 | Train grade control unit and train network control system |
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