Train data forwarding device

Abstract

The utility model provides a train data forwarding device. The device comprises a protocol conversion module which comprises a protocol conversion chip and an external circuit for configuring the protocol conversion chip; shielding a data channel for converting from the network port to the serial port through the external circuit, and only retaining the data channel for converting from the serial port to the network port; the data input interface module is used for receiving serial port type train data sent by a vehicle-mounted control unit and sending the serial port type train data to the protocol conversion module; and the data output interface module is used for receiving the serial port type train data converted from the serial port type train data received by the protocol conversion module, and sending the network port type train data to a gateway. According to the technical scheme provided by the embodiment of the utility model, serial port type train data of the vehicle-mounted control unit can be converted into network port data for external transmission, remote man-machine interaction diplopia can be further carried out by using the network port data, and the limitation of localization of vehicle-mounted data can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of rail transit, and in particular to a train data forwarding device. Background Technology

[0002] Currently, data exchange between the human-machine interface and the vehicle control unit is conducted via an RS422 serial port. The content of the human-machine interface can only be displayed locally on the electric bus in real time and cannot be transmitted remotely. Summary of the Invention

[0003] To achieve the above objectives, this utility model proposes a train data forwarding device to convert the serial port train data of the on-board control unit into network port data for external transmission, which facilitates further use for remote human-machine interaction and can effectively solve the limitations of localization of on-board data.

[0004] This utility model proposes a train data forwarding device, comprising: a protocol conversion module, including a protocol conversion chip and an external circuit for configuring the protocol conversion chip; the external circuit shields the data channel in the protocol conversion chip that converts from Ethernet to serial port, retaining only the data channel that converts from serial port to Ethernet; a data input interface module, receiving serial-format train data sent from the on-board control unit and sending it to the protocol conversion module; and a data output interface module, receiving the serial-format train data received by the protocol conversion module and converting it into Ethernet-format train data, and sending the Ethernet-format train data to a gateway. This device can convert serial-format train data from the on-board control unit into Ethernet data for external transmission, facilitating further remote human-machine interaction and effectively overcoming the limitations of local on-board data transmission. Attached Figure Description

[0005] The accompanying drawings are intended only to illustrate and explain the present invention and do not limit the scope of the present invention.

[0006] in,

[0007] Figure 1 This is a schematic diagram of the structure of a train data forwarding device according to an embodiment of the present invention.

[0008] The annotations in the attached figures are explained as follows:

[0009]

[0010] Detailed Implementation

[0011] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0012] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein, and therefore the present invention is not limited to the specific embodiments disclosed below.

[0013] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0014] The content displayed on the human-machine interface in the signaling system directly affects the driving judgment of the electric train driver. Therefore, the real-time performance and stability of the data interaction between the on-board control unit and the human-machine interface are crucial for safety. However, serial-to-network modules cannot meet the unidirectional transmission of data after conversion between serial and network ports, posing a security risk to the original data communication. Furthermore, the interface method, power supply, and appearance are not suitable for the requirements of the railway industry.

[0015] Therefore, a safer and more efficient train data forwarding device is needed.

[0016] like Figure 1 As shown, a train data forwarding device includes:

[0017] The protocol conversion module 101 includes a protocol conversion chip and an external circuit for configuring the protocol conversion chip; the external circuit shields the data channel in the protocol conversion chip that converts from the network port to the serial port, and only retains the data channel that converts from the serial port to the network port.

[0018] Specifically, while performing data type conversion, security is also taken into account. By performing one-way data transmission processing during the serial port data to network port data conversion process, the reverse transmission interference of network port data to the original serial port data can be effectively avoided.

[0019] The data input interface module 102 receives train data in serial form sent from the vehicle control unit 200 and sends it to the protocol conversion module 101.

[0020] The data output interface module 103 receives the train data in serial port format received by the protocol conversion module 101 and converts it into train data in network port format, and sends the train data in network port format to the gateway 400.

[0021] In one embodiment, the device further includes: a debugging interface module 104, which is connected to an external debugging device 300 via a USB interface and connected to the protocol conversion module 101 for functional debugging.

[0022] In one embodiment, the device further includes: a power supply module 105, which receives the high-voltage power supply from the train, steps it down, and then supplies power to the protocol conversion module 101, the data input interface module 102, the data output interface module 103, and the debugging interface module 104 respectively.

[0023] In one embodiment, the vehicle control unit 200 further includes a near-end vehicle control unit 201 and a far-end vehicle control unit 202.

[0024] In one embodiment, the data input interface module 102 includes two DB9 serial ports that are respectively connected to the near-end vehicle control unit 201 and the far-end vehicle control unit 202.

[0025] In one embodiment, the data output interface module 103 includes an M12 plug network port for connecting to the gateway 400.

[0026] Specifically, the module as a whole can be powered by DC110V, meeting the existing DC110V power supply scheme of the train equipment, without the need for other external power supply modules. The power supply interface uses an M12 aviation plug, which is more stable and reliable. It adopts a DB9 serial port interface and an M12 network port, with wiring sequence matching the existing wiring sequence and interface of the train equipment, avoiding changes to the existing cable sequence and making the interface more robust. In existing on-board control unit equipment, there is a distinction between near and far ends in the serial port connection to the human-machine interface. The two independent serial ports of this module can better adapt to the connection situation of existing on-board control unit equipment.

[0027] Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. For example, although the control plate in the drawings is located on the side of the base away from the infrared sensor and the fixing plate is located at the lower end of the base, this positional relationship is not fixed. Without departing from the principle of this utility model, those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0028] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The directional terms used in this article, such as "front," "front side," "front part," "rear," "rear side," and "rear part," are all based on the front-rear direction of the vehicle after the component is installed. The terms "longitudinal," "longitudinal direction," and "longitudinal section" mentioned in this article are based on the front-rear direction after the component is installed in the vehicle, while "transverse," "lateral," and "cross section" indicate the direction perpendicular to the longitudinal direction.

[0031] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0032] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes, modifications, and combinations made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A train data forwarding device (100), characterized in that, The device includes: The protocol conversion module (101) includes a protocol conversion chip and an external circuit for configuring the protocol conversion chip; the external circuit shields the data channel in the protocol conversion chip that converts from the network port to the serial port, and only retains the data channel that converts from the serial port to the network port; The data input interface module (102) receives train data in serial form sent from the vehicle control unit (200) and sends it to the protocol conversion module (101); The data output interface module (103) receives the train data in serial port format received by the protocol conversion module (101) and converts it into train data in network port format, and sends the train data in network port format to the gateway (400).

2. The apparatus according to claim 1, characterized in that, The device further includes: The debugging interface module (104) is connected to an external debugging device (300) via a USB interface and connected to the protocol conversion module (101) for functional debugging.

3. The apparatus according to claim 2, characterized in that, The device further includes: The power supply module (105) receives the high-voltage power supply from the train, steps it down, and then supplies power to the protocol conversion module (101), data input interface module (102), data output interface module (103), and debugging interface module (104).

4. The apparatus according to claim 1, characterized in that, The vehicle control unit (200) further includes: a near-end vehicle control unit (201) and a far-end vehicle control unit (202).

5. The apparatus according to claim 4, characterized in that, The data input interface module (102) includes two DB9 serial ports that are respectively connected to the near-end vehicle control unit (201) and the far-end vehicle control unit (202).

6. The apparatus according to claim 1, characterized in that, The data output interface module (103) includes an M12 plug network port for connecting to the gateway (400).

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