CN109808735B - Method, equipment and system for multi-section train communication - Google Patents
Method, equipment and system for multi-section train communication Download PDFInfo
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- CN109808735B CN109808735B CN201910056021.8A CN201910056021A CN109808735B CN 109808735 B CN109808735 B CN 109808735B CN 201910056021 A CN201910056021 A CN 201910056021A CN 109808735 B CN109808735 B CN 109808735B
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Abstract
The invention provides a technology for multi-section train communication, which comprises the following steps: receiving first control data of a first device; acquiring second equipment information and an external instruction, wherein the second equipment information at least comprises a train number and an equipment number of second equipment; setting a function code of the second device according to the external instruction, and generating second control data, wherein the second control data at least comprises the train number, the device number, the second device information and the function code of the second device of the first device; and transmitting the second control data. The technology can ensure that the number of the operated train sections can be dynamically adjusted quickly and efficiently according to the actual number of passengers on the premise of normal operation of the train.
Description
Technical Field
The present invention relates to the technical field of vehicles, and in particular, but not by way of limitation, to a communication technology for a train, and more particularly, to a communication technology for multiple trains.
Background
In the field of rail transit, the passenger capacity of a train is limited, and when the passenger volume is increased, reconnection of a plurality of trains is usually required to meet different passenger demands. When a train is reconnected, the problem to be solved is that the train is communicated, the traditional reconnection mode is based on the UIC bus, and the mode cannot completely transmit data between the trains due to the limitation of the bus function, so that the effect of normal operation of the train cannot be realized during reconnection.
The ethernet is used as the most widely used computer data communication network at present, and the transmission rate can reach hundreds megabits/s or even gigabits/s, even higher, so that a solution is brought to the above problems by applying the ethernet to a communication system between trains. However, when a train is reconnected every time, the train is often reconnected by any multiple trains, if an address is set for each device in each train separately, after each reconnection, a communication system needs to be reconfigured, and the address of each device is added into the system, so that the operation obviously wastes time and labor, and the method is not beneficial to realizing the rapid and efficient reconnection of multiple trains.
The invention provides an Ethernet-based train communication technology, which can quickly and efficiently dynamically adjust the number of operated train sections according to the actual number of passengers on the premise of ensuring the normal operation of a train.
Disclosure of Invention
In order to overcome the defects that the reconnection of the train wastes time and labor, the invention provides a train communication method, equipment and a system based on Ethernet, and aims to quickly and efficiently reconnect a plurality of trains and avoid the need of resetting addresses for the equipment every reconnection.
In order to achieve the purpose, the invention adopts a technical scheme that: a method for multi-train communication, the method comprising: receiving first control data of a first device; acquiring second equipment information and an external instruction, wherein the second equipment information at least comprises a train number and an equipment number of second equipment; setting a function code of the second device according to the external instruction, and generating second control data, wherein the second control data at least comprises the train number, the device number, the second device information and the function code of the second device of the first device; and transmitting the second control data.
Preferably, the first control data at least includes first device information as a source address and a multicast address as a destination address; the first device information at least comprises a train number, a device type, a device number and a function code of a first device, and the multicast address comprises addresses of all second devices in the train, wherein the addresses are the same as the device type.
Preferably, the acquiring of the second device information and the external instruction includes determining whether the first control data is from the second device according to the train number and the device number of the first device, and if the first control data is from the second device, no operation is performed; and if the first control data is not from the second equipment, the second equipment carries out external prompt according to the function code of the first equipment.
Preferably, the sending the second control data includes sending the second control data by using the first device information as a destination address and using the second device information as a source address.
Preferably, the method further includes the first device receiving the second control data, and updating the function code of the first device according to the function code of the second device.
In order to achieve the purpose, the invention adopts another technical scheme that: an apparatus for multi-train communication, the apparatus comprising: the receiving and sending module is used for receiving first control data of first equipment; the acquisition module is used for acquiring the second equipment information and the external instruction, wherein the second equipment information at least comprises a train number and an equipment number of the second equipment; the processing module is used for setting a function code of the second equipment according to the external instruction and generating second control data, wherein the second control data at least comprises the train number, the equipment number, the second equipment information and the function code of the second equipment of the first equipment; the transceiver module is further configured to transmit the first control data.
Preferably, the device establishes a first control module according to the first control data, where the first control module is configured to record first control data, and the first control data at least includes first device information as a source address and a multicast address as a destination address; the first device information at least comprises a train number, a device number and a function code of a first device, and the multicast address comprises addresses of all devices in the train, wherein the addresses are the same as the device number.
Preferably, the processing module is configured to determine whether the first control data is from the second device according to the train number and the device number of the first device, and if the first control data is from the second device, not perform any operation; and if the first control data is not from the second equipment, carrying out external prompt according to the function code of the first equipment.
Preferably, the transceiver module is configured to send the second control data by using the first device information as a destination address and using the second device information as a source address.
In order to achieve the purpose, the invention adopts another technical scheme that: a system for multi-train communication, said system comprising at least 2 of said devices, said devices comprising at least: the receiving and sending module is used for sending first control data and/or receiving second control data; the control module is used for updating the function code of the equipment according to the function code of the second control data; and the processing module enables the equipment to execute corresponding operation according to the function code.
Compared with the prior art, the invention has the advantages that: because the form of combining the train number and the equipment number is adopted, the request and connection equipment has uniqueness, so that the equipment with repeated ID in two trains is avoided, the same equipment ID in different trains is same, the maintainability of the equipment is improved, and the maintenance cost is saved. Meanwhile, the multi-group reconnection operation of the rail transit train can be met without influencing the system function of the rail transit train; the preparation work of the system for switching from the single-vehicle operation to the reconnection operation is less, the operation in the reconnection mode is fully automated, and manual operation is not needed; the system has simpler equipment maintenance and higher availability of spare parts.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1: a flow diagram of a method for multi-train communication according to one embodiment of the present invention;
FIG. 2: another embodiment of the present invention provides a method for multi-train communication;
FIG. 3: another embodiment of the present invention provides a method for multi-train communication;
FIG. 4: the device for the communication of the plurality of trains is schematically structured according to another embodiment of the invention;
FIG. 5: another embodiment of the present invention provides a system for multi-train communication.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Fig. 1 is a flow chart of a method for multi-train communication according to an embodiment of the present invention.
As shown in fig. 1, the communication method of the present embodiment includes the steps of:
s101, receiving first control data;
specifically, the first device establishes a first control module and sends out first control data, the first control module is used for recording all data of one-time communication, and the second device receives the first control data. In an optional embodiment, the first control data includes first device information and part of second device information, where the device information includes a train number, a device type, a device number, and a function code to which the device belongs, where the train numbers of each train are different, the same device of each train has the same device number, and each device in a plurality of trains can be determined according to the train number and the device number. The first device information at least includes a train number, a device type, a device number, and a function code of the first device, wherein the function code is set in different states according to a use condition of the device, for example, in a state where communication is not established, the function code is set in an inactive state.
In an alternative embodiment, the first device may send the first control data in a point-to-point manner or in a multicast manner for the first time. If the point-to-point transmission is carried out, the second equipment information at least comprises the train number and the equipment number of the second equipment; if the multicast transmission is performed, the multicast address of the second device is adopted by the second device information, that is, all devices in the train, which are the same as the device type of the first device, receive the first control data.
In an optional embodiment, the first control data includes a device number, a device type, a train number, and a multicast address of the second device of the first device, and the second device in each train can receive the first control data through the multicast address. In an optional embodiment, the first control module modifies, after receiving the second control data sent by the second device in step S104, the modification includes updating the state of the first device, and supplementing the second device information to determine the second device in the current communication.
In an optional embodiment, after receiving the first control data, the second device establishes, according to the first control data, a second control module for the first device, and records communication data with the first device. In an alternative embodiment, each communication has a corresponding pair of control modules, for example, the second control module of the second device and the first control module of the first device record the data of the communication respectively, and update the data according to the data received each time. In an optional embodiment, the pair of control modules is automatically cleared after the communication is finished.
S102, acquiring second equipment information and an external instruction;
specifically, the second device reads the locally stored train number and device number of the device, and acquires an external instruction according to an operator input. In an optional embodiment, the second device determines whether the train number and the device number of the first device in the first control data are the same as those of the second device, and if so, it indicates that the first control data come from the second device, and does not perform any operation; if the first control data is different from the second control data, the first control data is sent to other equipment, and external prompt, such as sound and light prompt, is performed according to the function code of the first equipment to remind an operator of inputting a corresponding external instruction. In an optional embodiment, the second device may also display the train number, the device number, and the like of the first device according to the first device information in the second control module.
In an optional embodiment, each train includes a communication server, which is connected to all communicable devices of the train, and the communication server obtains the train number of the train through an external interface and notifies all communication devices of the train, and the communication devices store the train number locally. In a specific implementation, the notification including the train number can be transmitted only inside the train, and the internal transmission is realized by a switch isolation data function (the three-layer switch has the function).
S103, setting a function code of the second equipment according to the external instruction, and generating second control data;
specifically, the operator inputs an external instruction through the second device, and the second device sets a function code of the second device according to the external instruction to generate second control data. In an optional embodiment, the second control data at least includes a train number and a device number of the first device and a train number, a device number and a function code of the second device. In a specific implementation, the function code is set to different states according to the use condition of the device, for example, if an operator needs to call through the second device, the function code of the second device may be set to a call activation state.
S104, sending second control data;
specifically, the second device transmits the second control data. In an optional embodiment, the second device sends the second control data with the first device information as a destination address and the second device information as a source address. In an alternative embodiment, the second device transmits the first control data to the ethernet through the three-tier switch.
Fig. 2 is a flow chart of a method for multi-train communication according to another embodiment of the present invention.
As shown in fig. 2, the communication method of the present embodiment includes the following steps:
s201, receiving first control data;
specifically, the first device establishes a first control module and sends out first control data, the first control module is used for recording all data of one-time communication, and the second device receives the first control data. In an optional embodiment, the first control data includes first device information and part of second device information, where the device information includes a train number, a device type, a device number, and a function code to which the device belongs, where the train numbers of each train are different, the same device of each train has the same device number, and each device in a plurality of trains can be determined according to the train number and the device number. The first device information at least includes a train number, a device type, a device number, and a function code of the first device, wherein the function code is set in different states according to a use condition of the device, for example, in a state where communication is not established, the function code is set in an inactive state.
In an alternative embodiment, the first device may send the first control data in a point-to-point manner or in a multicast manner for the first time. If the point-to-point transmission is carried out, the second equipment information at least comprises the train number and the equipment number of the second equipment; if the multicast transmission is performed, the second device information adopts the multicast address of the second device, that is, all devices in the train with the same device type as the first device receive the first control data.
In an optional embodiment, the first control data includes a device number, a device type, a train number, and a multicast address of the second device of the first device, and the second device in each train can receive the first control data through the multicast address. In an optional embodiment, the first control module modifies, after receiving the second control data sent by the second device in step S205, the modification includes updating the state of the first device and supplementing the second device information to determine the second device in the current communication.
In an optional embodiment, after receiving the first control data, the second device establishes a second control module for the first device according to the first control data, and is configured to record communication data with the first device. In an optional embodiment, each communication has a corresponding pair of control modules, for example, the second control module of the second device and the first control module of the first device, which respectively record data of the communication and update the data according to the data received each time. In an optional embodiment, the pair of control modules is automatically cleared after the communication is finished.
S202, acquiring second equipment information and an external instruction;
specifically, the second device reads the locally stored train number and device number of the device, and acquires an external instruction according to an operator input. In an optional embodiment, the second device determines whether the train number and the device number of the first device in the first control data are the same as those of the second device, and if so, indicates that the first control data come from the second device, does not perform any operation; if the first control data are different from the second control data, the first control data are sent to other equipment, and external prompt, such as sound and light prompt, is carried out according to the function code of the first equipment to remind an operator of inputting a corresponding external instruction. In an optional embodiment, the second device may further display a train number, a device number, and the like of the first device according to the first device information in the second control module.
In an optional embodiment, each train includes a communication server, which is connected to all communicable devices of the train, and the communication server obtains the train number of the train through an external interface and notifies all communication devices of the train, and the communication devices store the train number locally. In a specific implementation, the notification including the train number can be transmitted only inside the train, and the internal transmission is realized by a switch isolation data function (the three-layer switch has the function).
S203, setting a function code of the second device according to the external instruction, and generating second control data;
specifically, the operator inputs an external instruction through the second device, and the second device sets a function code of the second device according to the external instruction to generate the second control data. In an optional embodiment, the second control data at least includes a train number and a device number of the first device and a train number, a device number and a function code of the second device. In a specific implementation, the function code is set to different states according to the use condition of the device, for example, if an operator needs to call through the second device, the function code of the second device may be set to a call activation state.
S204, sending second control data;
specifically, the second device transmits the second control data. In an optional embodiment, the second device sends the second control data with the first device information as a destination address and the second device information as a source address. In an alternative embodiment, the second device transmits the first control data to the ethernet through the three-tier switch.
S205, the first device receives the second control data and updates the function code of the first device according to the function code of the second device;
specifically, the first device receives and analyzes the second control data to identify the train number, the device number and the function code of the second device, and the first control module records corresponding information and modifies the function code of the first device according to the function code of the second device. In an alternative embodiment, the communication device may turn off the audible and visual prompts of the communication device and set the communication device to an on state. In an optional embodiment, the first device may further display a train number, a device number, and the like of the second device according to the second device information in the first control module. And after the communication is established, the first equipment and the second equipment execute corresponding operations according to the function codes, for example, closing the acousto-optic prompt and activating the current conversation function.
Fig. 3 is a flow chart of a method for multi-train communication according to another embodiment of the present invention.
As shown in fig. 3, the communication method of the present embodiment includes the steps of:
s301, receiving first control data;
specifically, the first device establishes a first control module and sends out first control data, the first control module is used for recording all data of one-time communication, and the second device receives the first control data. In an optional embodiment, the first control data includes first device information and part of second device information, where the device information includes a train number, a device type, a device number, and a function code to which the device belongs, where the train numbers of each train are different, the same device of each train has the same device number, and each device in a plurality of trains can be determined according to the train number and the device number. The first device information at least includes a train number, a device type, a device number, and a function code of the first device, wherein the function code is set in different states according to a use condition of the device, for example, in a state where communication is not established, the function code is set in an inactive state.
In an alternative embodiment, the first device may send the first control data in a point-to-point manner or in a multicast manner for the first time. If the point-to-point transmission is carried out, the second equipment information at least comprises the train number and the equipment number of the second equipment; if the multicast transmission is performed, the multicast address of the second device is adopted by the second device information, that is, all devices in the train, which are the same as the device type of the first device, receive the first control data.
In an optional embodiment, the first control data includes a device number, a device type, a train number, and a multicast address of the second device of the first device, and the second device in each train can receive the first control data through the multicast address. In an optional embodiment, the first control module modifies, after receiving the second control data sent by the second device in step S305, the modification includes updating the state of the first device, and supplementing the second device information to determine the second device in the current communication.
In an optional embodiment, after receiving the first control data, the second device establishes a second control module for the first device according to the first control data, and is configured to record communication data with the first device. In an alternative embodiment, each communication has a corresponding pair of control modules, for example, the second control module of the second device and the first control module of the first device record the data of the communication respectively, and update the data according to the data received each time. In an optional embodiment, the pair of control modules is automatically cleared after the communication is finished.
S302, judging whether the first control data come from the train or not;
in an optional embodiment, the second device determines whether the train number of the first device is the same as the train number of the second device, if so, the communication is established in the train, and the local data logic code module is used for processing the first control data; if the two trains are different, the communication is established between the two different trains, and the remote data logic code module is used for processing the first control data.
S303, acquiring second equipment information and an external instruction;
specifically, the second device reads the locally stored train number and device number of the device, and acquires an external instruction according to an operator input. In an optional embodiment, the second device determines whether the train number and the device number of the first device in the first control data are the same as those of the second device, and if so, it indicates that the first control data come from the second device, and does not perform any operation; if the first control data is different from the second control data, the first control data is sent to other equipment, and external prompt, such as sound and light prompt, is performed according to the function code of the first equipment to remind an operator of inputting a corresponding external instruction. In an optional embodiment, the second device may further display a train number, a device number, and the like of the first device according to the first device information in the second control module.
In an optional embodiment, each train includes a communication server, which is connected to all communicable devices of the train, and the communication server obtains the train number of the train through an external interface and notifies all communication devices of the train, and the communication devices store the train number locally. In a specific implementation, the notification including the train number can be transmitted only inside the train, and the internal transmission is realized by a switch isolation data function (the three-layer switch has the function).
S304, setting a function code of the second device according to the external instruction, and generating second control data;
specifically, the operator inputs an external instruction through the second device, and the second device sets a function code of the second device according to the external instruction to generate second control data. In an optional embodiment, the second control data at least includes a train number and a device number of the first device and a train number, a device number and a function code of the second device. In a specific implementation, the function code is set to different states according to the use condition of the device, for example, if an operator needs to call through the second device, the function code of the second device may be set to a call activation state.
S305, transmitting second control data;
specifically, the second device transmits the second control data. In an optional embodiment, the second device sends the second control data with the first device information as a destination address and the second device information as a source address. In an alternative embodiment, the second device transmits the first control data to the ethernet through the three-tier switch.
S306, after receiving the second control data, the first equipment judges whether the second control data comes from the train;
in an optional embodiment, after receiving the second control data, the first device determines whether the train number of the second device is the same as the train number of the first device, if so, the communication is established in the current train, and a local data logic code module is used for processing the second control data; if the two control data are different, the communication is established between two different trains, and the different-place data logic code module is used for processing the second control data.
S307, updating the function code of the first device according to the function code of the second device;
specifically, the first device receives and analyzes the second control data to identify the train number, the device number and the function code of the second device, and the first control module records corresponding information and modifies the function code of the first device according to the function code of the second device. In an alternative embodiment, the communication device may turn off the audible and visual prompts of the communication device and set the communication device to an on state. In an optional embodiment, the first device may further display a train number, a device number, and the like of the second device according to the second device information in the first control module. And after the communication is established, the first equipment and the second equipment execute corresponding operations according to the function codes, for example, closing the acousto-optic prompt and activating the current call function.
S308, ending the communication;
specifically, the first device and/or the second device in the activated state transmit third control data indicating that the talk-back is finished. In an optional embodiment, the third control data includes a train number, a device type, a device number, and a function code of the device, where the function code is set to a hang-up state, and all devices end communication after receiving the third control data and clean up the control module established before.
Fig. 4 is a schematic structural diagram of a device for multi-train communication according to another embodiment of the present invention.
As shown in fig. 4, the communication apparatus of the present embodiment includes: a transceiver module 403, configured to receive and/or transmit control data; an obtaining module 402, configured to obtain an external instruction and device information; and the processing module 401 is configured to set a function code of the device and generate control data. In an alternative embodiment, the communication device may also establish a control module 404 for each communication to record all data for one communication.
Fig. 5 is a schematic structural diagram of a system for multi-train communication according to another embodiment of the present invention.
As shown in fig. 5, the system of the present embodiment includes a communication server 502 and a communication device 501, wherein the communication server 502 is connected to the communication device 501, and the communication server 502 is configured to receive and/or forward data of the communication device 501, and establish communication with the communication server 502 of another train through a network. Specifically, the communication device 501 may include a broadcasting device, a driver's intercom device, an emergency alarm device, an LED screen display device, a monitoring device, and the like. The communication servers 502 of the column shop are connected for communication by ethernet.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The method, the device and the system for multi-section train communication provided by the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the implementation is only used for helping to understand the method and the core idea of the invention; while the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. A method for multi-train communication, the method comprising:
receiving first control data of a first device; the first control data at least comprises first equipment information as a source address and a multicast address as a destination address; the first equipment information at least comprises a train number, an equipment type, an equipment number and a function code of first equipment, and the multicast address comprises addresses of all second equipment in the train, wherein the addresses are the same as the equipment type;
acquiring second equipment information and an external instruction, wherein the second equipment information at least comprises a train number and an equipment number of second equipment;
setting a function code of the second device according to the external instruction, and generating second control data, wherein the second control data at least comprises the train number, the device number, the second device information and the function code of the second device of the first device; and
and transmitting the second control data.
2. The method according to claim 1, wherein the acquiring of the second device information and the external instruction includes determining whether the first control data is from the second device according to the train number and the device number of the first device, and if the first control data is from the second device, not performing any operation; and if the first control data is not from the second equipment, the second equipment carries out external prompt according to the function code of the first equipment.
3. The method of claim 1, wherein the sending the second control data comprises sending the second control data with the first device information as a destination address and the second device information as a source address.
4. A method according to any of claims 1-3, further comprising the first device receiving the second control data and updating the function code of the first device in accordance with the function code of the second device.
5. An apparatus for multi-train communication, the apparatus comprising:
the receiving and sending module is used for receiving first control data of first equipment; the first control data at least comprises first equipment information as a source address and a multicast address as a destination address; the first equipment information at least comprises a train number, an equipment number and a function code of first equipment, and the multicast address comprises addresses of all equipment which are the same as the equipment number in the train;
the acquisition module is used for acquiring second equipment information and an external instruction, wherein the second equipment information at least comprises a train number and an equipment number of the second equipment;
the processing module is used for setting a function code of the second equipment according to the external instruction and generating second control data, wherein the second control data at least comprises the train number, the equipment number, the second equipment information and the function code of the second equipment of the first equipment;
the transceiver module is further configured to transmit the first control data.
6. The apparatus according to claim 5, wherein the apparatus establishes a first control module according to the first control data, and the first control module is configured to record the first control data.
7. The device of claim 5, wherein the processing module is configured to determine whether the first control data is from the second device according to the train number and the device number of the first device, and if the first control data is from the second device, not perform any operation; if the first control data is not from the second equipment, carrying out external prompt according to the function code of the first equipment;
the transceiver module is configured to send the second control data using the first device information as a destination address and using the second device information as a source address.
8. A system for multi-train communication, characterized in that the system comprises at least 2 devices according to any of claims 5-7, the devices comprising at least:
the receiving and sending module is used for sending first control data and/or receiving second control data;
the control module is used for updating the function code of the equipment according to the function code of the second control data;
and the processing module enables the equipment to execute corresponding operation according to the function code.
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| CN105460047A (en) * | 2014-09-10 | 2016-04-06 | 北京锦鸿希电信息技术股份有限公司 | Train monitoring method and system |
| CN108848176A (en) * | 2018-06-26 | 2018-11-20 | 中车青岛四方车辆研究所有限公司 | EMU Overpassing Platform by Using system, cross-platform passenger information communication system and method |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006281960A (en) * | 2005-03-31 | 2006-10-19 | East Japan Railway Co | Signal control system, signal equipment and program |
| CN105460047A (en) * | 2014-09-10 | 2016-04-06 | 北京锦鸿希电信息技术股份有限公司 | Train monitoring method and system |
| CN105059330A (en) * | 2015-08-04 | 2015-11-18 | 中国神华能源股份有限公司 | Equipment, system and method for ground reinforcement of combined train |
| CN108848176A (en) * | 2018-06-26 | 2018-11-20 | 中车青岛四方车辆研究所有限公司 | EMU Overpassing Platform by Using system, cross-platform passenger information communication system and method |
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