Train network control system, method and device

Abstract

Train Network Control System, Method, and Device and Train. Summary Contents. A train network control system, method, and device, and a train are provided. The train network control system comprises at least two power units, and data interaction is performed between the at least two power units via an Ethernet backbone network or a wired train bus. According to the train network control system, method, and device, and the train provided by this disclosure, a redundant network structure is formed by the Ethernet backbone network and the wired train bus, thereby improving the stability and reliability of communication between the power units in the train. Figure for Summary: Fig. 1.

Description

Title of the invention: System, method and device for controlling a train network and train Technical field

[0001] The present disclosure claims priority to Chinese Patent Application No. 201910132635.X, entitled “TRAIN NETWORK CONTROL SYSTEM, METHOD AND DEVICE AND TRAIN”, filed on February 22, 2019 with the Chinese Intellectual Property Office.

[0002] The present disclosure relates to the technological field of railway vehicles, and in particular, to a train network control system, method and device and to a train. Prior art

[0003] Currently, a train communication network (TCN) is installed in a train, and power units of the train can interact via the TCN.

[0004] When the TCN fails and cannot work, the power supply units cannot communicate with each other, so the electrical equipment in the train cannot work normally. Statement of the invention

[0005] To solve the above problems, a train network control system, method and device and a train are provided according to embodiments of the present disclosure.

[0006] In a first aspect, a train network control system is provided, wherein the train network control system comprises at least two power supply units, data interaction is performed between the at least two power supply units via an Ethernet backbone or a wired train bus.

[0007] In a second aspect, a train comprising the aforementioned train network control system is provided.

[0008] In a third aspect, a train network control method, applied to the aforementioned train network control system, is provided, wherein the method comprises:

[0009] to obtain, by a first power supply unit, address information of another power supply unit;

[0010] sending, based on the address information, a control instruction to the other power supply unit corresponding to the address information via the Ethernet backbone network; and

[0011] in the event of non-receipt of feedback information from the other unit power supply corresponding to the address information within a predefined time, to send a control instruction to the other power supply unit via the wired train bus.

[0012] In a fourth aspect, a train network control method, applied to the aforementioned train network control system, is provided, wherein the method comprises:

[0013] to send, by a central control unit of a first power supply unit, a control instruction to a controlled device of the first power supply unit via a classification Ethernet; and

[0014] in the case of not receiving feedback information from the controlled device within a predefined time, sending a control instruction to the controlled device of the first power unit via a multi-function vehicle bus.

[0015] In a fifth aspect, a train network control device is provided, comprising:

[0016] an acquisition module, configured to obtain address information from another power supply unit;

[0017] a first sending module, configured to send, based on the address information, a control instruction to the other power supply unit corresponding to the address information via an Ethernet backbone network; and

[0018] a second sending module, configured to, in the event of not receiving feedback information from the other power unit corresponding to the address information within a predefined time, send a control instruction to the other power unit via a wired train bus.

[0019] In a sixth aspect, a train network control device is provided, comprising:

[0020] a first sending unit, configured to send a control instruction to a controlled device via a classification Ethernet; and

[0021] a second sending unit, configured to, in the event of not receiving feedback information from the controlled device within a predefined time, send a control instruction to the controlled device via a multi-function vehicle bus.

[0022] According to the solutions provided by the first and second aspects of the present disclosure, an Ethernet backbone network and a wired train bus are provided in a train, and data interaction between the power supply units of the train can be performed via the Ethernet backbone network and the wired train bus. In conventional technology, the central control units of power supply units cannot communicate with each other when the train communication network of the train fails. down. However, in current solutions, the central control units of the power units can communicate with each other via the wired train bus when the Ethernet backbone fails, and the central control units of the power units can communicate with each other via the Ethernet backbone when the wired train bus fails. The Ethernet backbone and the wired train bus form a redundant network structure, thus improving the stability and reliability of communication between the train power units.

[0023] According to the solutions provided by the third and fifth aspects of the present disclosure, a control instruction is sent to a power supply unit corresponding to the address information via the Ethernet backbone network. If feedback information is not received within a predetermined time, a control instruction is sent to the power supply unit via the wired train bus. In this way, when the Ethernet backbone network fails, the data transmission network is switched to become the wired train bus. By using the wired train bus to send the control instruction, it is ensured that each power supply unit in the train can operate normally, thereby improving the stability and reliability of communication between the power supply units in the train.

[0024] According to the solutions provided by the fourth and sixth aspects of the present disclosure, a control instruction is sent to a controlled device via a filing Ethernet. If feedback information is not received within a predefined time, a control instruction is sent to the controlled device via a multi-function vehicle bus. In this way, when the filing Ethernet fails, the data transmission network is switched to become the multi-function vehicle bus. By using the multi-function vehicle bus to send the control instruction, it is ensured that the controlled device in the power unit in the train can operate normally, thereby improving the stability and reliability of communication between the power units in the train.

[0025] In order to make the foregoing objects, features and advantages of the present disclosure more understandable, hereinafter are specific embodiments described in detail with reference to the drawings. Brief description of the drawings

[0026] [Fig.l] [Fig.l] is a schematic structural diagram of a train network control system according to one embodiment of the present disclosure;

[0027] [Fig.2] [Fig.2] is a flowchart of a train network control method according to one embodiment of the present disclosure;

[0028] [Fig.3] [Fig.3] A flowchart of a train network control method according to one embodiment of the present disclosure;

[0029] [Fig.4] [Fig.4] is a schematic structural diagram of a train network control device according to one embodiment of the present disclosure; and

[0030] [Fig.5] [Fig.5] is a schematic structural diagram of a train network control device according to one embodiment of the present disclosure. Description of Embodiments

[0031] Reference numbers:

[0032] ECN: Classification Ethernet

[0033] WTB: Cable Train Bus

[0034] MVB: multifunction vehicle bus

[0035] CCU: Central Control Unit

[0036] ETB: Ethernet backbone network

[0037] 400: acquisition module

[0038] 402: a first sending module

[0039] 404: a second sending module

[0040] 500: a first sending unit

[0041] 502: a second sending unit

[0042] It is to be understood that the description such as "center", "longitudinal", "transverse", "length", "width", "thickness", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", "outer", "clockwise", "counterclockwise" indicates an orientation or positional relationship based on the drawings. The above relative description is merely for the convenience of understanding and simplification of the present disclosure, and is not intended to indicate or imply that a device or element must have a specific orientation and structure, or must operate in a specific orientation. Therefore, this is not to be understood as a limitation of the present disclosure.

[0043] Furthermore, the terms “first” and “second” are used for descriptive purposes only and may not be understood to indicate or imply relative importance or implicitly indicate the number of technical features indicated. Therefore, a feature defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of “plurality” and “multiple” is two or more, unless specifically indicated otherwise.

[0044] In the present invention, the terms "install", "connect to", "connect with", "fix" and other terms are to be understood in a broad sense, except as otherwise limited and otherwise indicated. For example, they may refer to fixed connections, removable connections, or integral connections. They may also refer to mechanical connections or electrical connections. The connections may be directly connected or indirectly connected via an intermediate medium, or they may refer to an internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present disclosure may be understood according to a specific context.

[0045] Currently, a train communication network (TCN) is installed in a train, so that the power units in the train can interact via the TCN.

[0046] When the TCN fails and cannot operate, the power supply units cannot communicate with each other, therefore the electrical equipment in the train cannot operate normally.

[0047] Ethernet has a fast transmission speed and can transmit more information, thus, Ethernet is applied to a train control network. In the technical solutions of the present disclosure, a train-level Ethernet and a train communication network are used in a train simultaneously, to ensure that a mature and reliable network system is applied to the train. Thus, a redundant network structure is formed by the train-level Ethernet and the train communication network, thereby improving the stability and reliability of communication between the power supply units of the train.

[0048] Embodiment one

[0049] Reference is made to [Fig.l], which is a schematic structural diagram of a train network control system according to an embodiment of the present disclosure. The train network control system provided in this embodiment comprises at least two power supply units, and data interaction is performed between the at least two power supply units via an Ethernet backbone (not shown in the figure) or a wired train bus (not shown in the figure).

[0050] A train-level network includes the wired train bus and the Ethernet backbone network. A vehicle-level network includes a classification network and a multifunction vehicle bus.

[0051] Consider electrical multiple units. For example, electrical multiple units have eight compartments, with compartments 1 to 4 forming one power unit and compartments 5 to 8 forming another power unit. Information can be transmitted between the two power units via the Ethernet backbone (ETB) or the wired train bus (WTB). Information can be transmitted within a power unit via the classification Ethernet to the vehicle level (ECN) or the multi-function vehicle bus (MVB).

[0052] In the embodiment, ETB and ECN may form the Ethernet (ETH), and WTB and MVB may form a Train Communication Network (TCN).

[0053] When a first power unit of the train is to send a control instruction to another power unit, the first power unit is configured to execute the following steps 1 to 3:

[0054] step 1 of obtaining address information of the other power supply unit;

[0055] step 2 of sending a control instruction to the power supply unit cor responding to address information via the Ethernet backbone network based on the address information; and

[0056] step 3 of sending a control instruction to the other power unit via the wired train bus in the case of not receiving feedback information from the power unit corresponding to the address information within a predefined time.

[0057] In the aforementioned step 1, the address information represents an IP address of the other power supply unit in the Ethernet backbone network and the wired train bus.

[0058] In the aforementioned step 3, the predefined delay may be 50 milliseconds, or may be set to other values.

[0059] Each power unit comprises a central control unit (CCU), a gateway and a controlled device, and the power unit is configured to control the controlled device.

[0060] The central control unit is connected to the gateway, and the gateway is connected to a gateway of another power unit via the wired train bus.

[0061] The central control unit is connected to the controlled device via the classification Ethernet and the multifunction vehicle bus.

[0062] The controlled devices are connected to each other via the classification Ethernet and the multifunction vehicle bus.

[0063] The central control unit and the controlled device are connected to a central control unit and a controlled device of another power unit via the classification Ethernet and the Ethernet backbone network connected to the classification Ethernet.

[0064] The central control unit is configured to send a control instruction to the controlled device via the classification Ethernet, and to send a control instruction again to the controlled device via the multi-function vehicle bus in the case of not receiving feedback information from the controlled device within a predefined time.

[0065] The controlled device refers to an electrical equipment or a host of system connected to the central control unit in the power supply unit. The central control unit controls the electrical equipment or system host.

[0066] The system host may be a controlled device such as a traction control device, a brake control device, a door control device, and an air conditioning control device.

[0067] When the central control unit of the first power unit needs to send a control instruction to the central control unit of another power unit, the central control unit of the first power unit is configured to send, on the basis of address information of the other power unit, a control instruction to the central control unit of the power unit corresponding to the address information via the Ethernet backbone network. In the case of not receiving feedback information from the power unit corresponding to the address information within the preset time, a control instruction is sent again to the power unit corresponding to the address information via the wired train bus.

[0068] According to the train network control system provided by this embodiment of the present disclosure, data can be transmitted between power supply units in the train via the Ethernet backbone or the wired train bus. Both networks operate simultaneously. Each power supply unit is preferentially controlled via the Ethernet backbone. When the Ethernet backbone fails, the wired train bus is used for data transmission. The wired train bus serves as passive redundancy for the Ethernet backbone. Alternatively, the wired train bus can be preferentially used. When the wired train bus fails, the Ethernet backbone is used for data transmission. Thus, the Ethernet at the train level serves as passive redundancy for the train communication network.

[0069] The overall topology of the two different networks is the same. The train network control system defines the network segment according to the power supply unit, and the address information of different devices in a power supply unit can be defined in a network segment. Data transmission between power supply units is performed via the Ethernet backbone network and the wired train bus. Data transmission in a power supply unit is performed via the classification Ethernet and the multi-function vehicle bus. The data transmission mode of the train-level network is the same as the data transmission mode of the vehicle-level network.

[0070] A same communication protocol can be used for both Ethernet and wired train bus for information interaction between central control units of the power supply units. Each central control unit preferen The Ethernet backbone network is primarily used for information interaction. When communication between central control units via the Ethernet backbone network fails, the wired train bus is used for information interaction. The central control unit in each power unit integrates data into the power unit. The integrated data is transmitted to the Ethernet backbone network connected to the central control unit of the power unit via the classification Ethernet, and then transmitted to other power units via the Ethernet backbone network.

[0071] Control by the central control unit in each power unit can be realized by using relevant data according to actual situations.

[0072] The information interaction between the central control unit and the controlled device in the power unit uses multi-function vehicle bus and Ethernet communication protocols with the same content. The Ethernet uses a TRDP protocol, and other systems in the train use TRDP and MVB protocols to perform data interaction with the central control unit.

[0073] A train comprising the aforementioned train network control system is further provided according to this embodiment of the present disclosure.

[0074] According to the train network control system and the train provided by this embodiment of the present disclosure, the Ethernet backbone network and the wired train bus are provided in the train, the data interaction between each of the power supply units provided in the train can be carried out via the Ethernet backbone network and the wired train bus. In the conventional technology, the central control units of the power supply units cannot communicate with each other when the train communication network of the train fails. However, in the current solutions, the central control units of the power supply units can communicate with each other via the wired train bus when the Ethernet backbone network fails, and the central control units of the power supply units can communicate with each other via the Ethernet backbone network when the wired train bus fails.The Ethernet backbone network and the wired train bus form a redundant network structure, thus improving the stability and reliability of communication between the train's power supply units.

[0075] Embodiment two

[0076] Reference is made to [Fig.2], which is a flowchart of a train network control method according to one embodiment of the present disclosure, for controlling data transmission between power supply units. The train network control method provided in this embodiment is applied to the aforementioned train network control system described in embodiment one, and the method comprises the following steps 200, 202 and 204:

[0077] step 200 of obtaining address information of another power supply unit by a first power supply unit;

[0078] step 202 of sending a control instruction to a power supply unit corresponding to the address information via the Ethernet backbone network based on the address information.

[0079] step 204 of sending a control instruction to the other power unit via a wired train bus in the case of not receiving feedback information from the power unit corresponding to the address information within a predefined time.

[0080] According to the train network control method provided by this embodiment of the present disclosure, the control instruction is sent to the power supply unit corresponding to the address information via the Ethernet backbone. If the feedback information is not received within the preset time, the control instruction is sent to the power supply unit again via the wired train bus. In this way, when the Ethernet backbone fails, a data transmission network is switched to the wired train bus. By sending the control instruction to the power supply unit via the wired train bus, it is ensured that each power supply unit in the train can operate normally, thereby improving the stability and reliability of communication between the power supply units in the train.

[0081] Embodiment three

[0082] Reference is made to [Fig. 3], which is a flowchart of a train network control method according to one embodiment of the present disclosure, for controlling devices inside the power supply unit. The train network control method provided in this embodiment is applied to the aforementioned train network control system, and the method comprises the following steps 300 and 302.

[0083] In step 300, the central control unit in the first power supply unit sends a control instruction to a controlled device via the classification Ethernet.

[0084] The central control unit can send the control instruction to the controlled device in any conventional data transmission mode, in a network segment.

[0085] In step 302, a control instruction is sent to the controlled device via the multifunction vehicle bus in the event of not receiving feedback information from the controlled device within a predefined time.

[0086] When sending a control instruction to the central control unit of another power unit, the train network control method in this embodiment further comprises the fact:

[0087] sending, based on the address information of the other power supply unit, a control instruction to the central control unit of the power supply unit corresponding to the address information via the Ethernet backbone network; and

[0088] to send a control instruction to the power unit corresponding to the address information via the wired train bus in the case of not receiving feedback information from the power unit corresponding to the address information within a predefined time.

[0089] According to the train network control method provided by this embodiment of the present disclosure, the control instruction is sent to the controlled device via the classification Ethernet. If the feedback information is not received within the preset time, the control instruction is sent to the controlled device via the multi-function vehicle bus. In this way, when the classification Ethernet fails, the data transmission network is switched to become the multi-function vehicle bus. By sending the control instruction to the controlled device in the power unit via the multi-function vehicle bus, it is ensured that the controlled device in each power unit in the train can operate normally, thereby improving the communication stability and reliability in each power unit in the train.

[0090] Embodiment four

[0091] Reference is made to [Fig.4], which is a schematic structural diagram of a train network control device according to one embodiment of the present disclosure.

[0092] The train network control device provided in this embodiment comprises:

[0093] an acquisition module 400, configured to obtain address information from another power supply unit;

[0094] a first sending module 402, configured to send a control instruction to the power supply unit corresponding to the address information via the Ethernet backbone network based on the address information; and

[0095] a second sending module 404, configured to send a control instruction to the other power unit via the wired train bus in the event of not receiving feedback information from the power unit corresponding to the address information within a predefined time.

[0096] According to the train network control device provided by this embodiment of the present disclosure, the control instruction is sent to the power supply unit corresponding to the address information via the Ethernet backbone network. If the feedback information is not received within the preset time, The control instruction is sent to the other power unit again via the wired train bus. In this way, when the Ethernet backbone fails, the data transmission network is switched to the wired train bus. By sending the control instruction to the other power unit via the wired train bus, it is ensured that each power unit in the train can operate normally, thereby improving the stability and reliability of communication between the power units in the train.

[0097] Embodiment five

[0098] Reference is made to [Fig.5], which is a schematic structural diagram of a train network control device according to an embodiment of the present disclosure. In this embodiment, the train network control device comprises:

[0099] a first sending unit 500, configured to send a control instruction to a controlled device via the classification Ethernet; and

[0100] a second sending unit 502, configured to send a control instruction to the controlled device via the multifunction vehicle bus in the event of not receiving feedback information from the controlled device within a predefined time.

[0101] To send a control instruction to a central control unit of another power unit, the train network control device further comprises:

[0102] a third sending unit, configured to send, based on address information of another power supply unit, a control instruction to the central control unit of the power supply unit corresponding to the address information via the Ethernet backbone network; and

[0103] a fourth sending unit, configured to send a control instruction to the power supply unit corresponding to the address information via the wired train bus in the event of not receiving feedback information from the power supply unit corresponding to the address information within a predefined time.

[0104] According to the train network control method provided by this embodiment of the present disclosure, the control instruction is sent to the controlled device via the classification Ethernet. If the feedback information is not received within the preset time, the control instruction is sent to the controlled device via the multi-function vehicle bus. In this way, when the classification Ethernet fails, the data transmission network is switched to become the multi-function vehicle bus. By sending the control instruction to the controlled device in the power unit via the multi-function vehicle bus, it is ensured that the controlled device in each power unit in the train can operate normally, thus improving the stability and reliability of communication in each power unit in the train.

[0105] The above description is only specific embodiments of the present disclosure, and the present disclosure is not limited to the embodiments illustrated herein. Many modifications and alternations may be made to the technical solutions of the present disclosure by those skilled in the art in light of the methods and technical contents disclosed herein. Therefore, the scope of the present disclosure should be defined by the claims.

Claims

Claims

1. A train network control system, comprising at least two power supply units, wherein data interaction is performed between the at least two power supply units via an Ethernet backbone or a wired train bus, wherein a train-level network comprises the wired train bus and the Ethernet backbone, and a vehicle-level network comprises a filing Ethernet and a multi-function vehicle bus the first power unit comprises: a central control unit, a gateway and controlled devices; the central control unit is connected to the gateway, and the gateway is connected to a gateway of the other power unit via the wired train bus; the central control unit is connected to the controlled devices via the filing Ethernet and the multi-function vehicle bus; the controlled devices are connected to each other via the filing Ethernet and the multi-function vehicle bus; the central control unit and the controlled devices are connected to a central control unit and a controlled device of the other power unit via the filing Ethernet and the Ethernet backbone network connected to the filing Ethernet; and the central control unit is configured to send (300) a control instruction to the controlled device via the filing Ethernet, and in the case of not receiving feedback information from the controlled device within a preset time, to send (302) a control instruction to the controlled device via the multi-function vehicle bus.

2. A train network control system according to claim 1, wherein when a first power unit of the at least two power units is to send a control instruction to another power unit, the first power unit is configured to: obtain (200) address information of the other power unit sending (202), based on the address information, a control instruction to the other power unit corresponding to the in- address formations via the Ethernet backbone; and in the case of not receiving feedback information from the other power unit corresponding to the address information within a predefined time, sending a control instruction to the other power unit via the wired train bus.

3. The train network control system according to claim 2, wherein when the central control unit of the first power unit is to send a control instruction to the central control unit of the other power unit, the central control unit of the first power unit is configured to: send, on the basis of the address information of the other power unit, a control instruction to the central control unit of the other power unit corresponding to the address information via the Ethernet backbone; and in the case of not receiving feedback information from the other power unit corresponding to the address information within a predefined time, send a control instruction to the other power unit corresponding to the address information via the wired train bus.

4. A train, comprising the train network control system according to any one of claims 1 to 3.

5. A train network control method, applied to the train network control system according to any one of claims 1 to 3, wherein the method comprises: obtaining, by the one power supply unit, the address information of the other power supply unit; sending, based on the address information, a control instruction to the other power supply unit corresponding to the address information via the Ethernet backbone network; and in the case of not receiving feedback information from the other power supply unit corresponding to the address information within a predefined time, sending a control instruction to the other power supply unit via the wired train bus.

6. A train network control method, applied to the train network control system according to any one of claims 1 to 3, wherein the method comprises: sending, by the central control unit of the first unit

7. power supply, a control instruction to the controlled device of the first power supply unit via the classification Ethernet; and in the case of not receiving feedback information from the controlled device within a predefined time, sending a control instruction to the controlled device of the first power supply unit via the multi-function vehicle bus A method of controlling a train network according to claim 6, wherein the method comprises: when a control instruction is to be sent to the central control unit of the other power supply unit, sending, based on the address information of the other power supply unit, a control instruction to the central control unit of the other power supply unit corresponding to the address information via the Ethernet backbone network; and in the case of not receiving feedback information from the other power unit within a predefined time, sending a control instruction to the other power unit corresponding to the address information via the wired train bus.

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