Vehicle-mounted data transmission system

Abstract

The utility model relates to the field of data transmission, in particular to a vehicle-mounted data transmission system. The vehicle-mounted data transmission system provided by the utility model comprises a vehicle-mounted data acquisition module, a vehicle-mounted gateway, a vehicle-mounted terminal, a trackside base station and a trackside cache server, the vehicle-mounted gateway and the vehicle-mounted terminal are arranged at a vehicle-mounted end; the trackside base station and the trackside cache server are arranged at a trackside end; the vehicle-mounted data acquisition module is connected with the vehicle-mounted gateway; the vehicle-mounted gateway is connected with the vehicle-mounted terminal; the vehicle-mounted terminal is in wireless connection with the trackside base station; the trackside base station is connected with the trackside high-speed cache server, and the problems that an existing vehicle-mounted data storage device easily affects transmission and storage of vehicle-mounted data, and the transmission efficiency of the vehicle-mounted data is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the field of data transmission, in particular to a vehicle-mounted data transmission system. Background Art

[0002] Traditional train vehicle-mounted data is stored in a solid-state drive pre-set on the train. However, when the solid-state drive is damaged due to the external environment, it will affect the transmission and storage of vehicle-mounted data, reducing the efficiency of vehicle-mounted data transmission. For example, when the hard disk is damaged due to the vibration or jitter of the carriage during the operation of the train, or when the storage reaches the upper limit and other scenarios that require frequent insertion of interfaces cause hardware damage, it will affect the transmission and storage of vehicle-mounted data and reduce the transmission efficiency of vehicle-mounted data. Therefore, it is necessary to propose a new vehicle-mounted data transmission system. Summary of the Utility Model

[0003] An embodiment of the utility model discloses a vehicle-mounted data transmission system, which is used to solve the problem that the existing vehicle-mounted data storage device is easy to affect the transmission and storage of vehicle-mounted data and reduce the transmission efficiency of vehicle-mounted data.

[0004] An embodiment of the utility model provides a vehicle-mounted data transmission system, including: a vehicle-mounted data acquisition module, a vehicle-mounted gateway, a vehicle-mounted terminal, a trackside base station, and a trackside high-speed cache server; the vehicle-mounted gateway and the vehicle-mounted terminal are arranged on the vehicle-mounted side; the trackside base station and the trackside high-speed cache server are arranged on the trackside side;

[0005] The vehicle-mounted data acquisition module is connected to the vehicle-mounted gateway;

[0006] The vehicle-mounted gateway is connected to the vehicle-mounted terminal;

[0007] The vehicle-mounted terminal is wirelessly connected to the trackside base station;

[0008] The trackside base station is connected to the trackside high-speed cache server.

[0009] Optionally, the vehicle-mounted terminal is connected to the trackside base station through a 60Ghz millimeter wave band frequency.

[0010] Optionally, the transmission protocol between the vehicle-mounted terminal and the trackside base station includes the 802.11ad / ay protocol.

[0011] Optionally, the vehicle-mounted gateway is connected to the vehicle-mounted terminal through a network cable.

[0012] Optionally, the trackside base station is connected to the trackside high-speed cache server through a network cable.

[0013] Optionally, the number of vehicle-mounted terminals is at least one, and the trackside base station is connected to at least one vehicle-mounted terminal.

[0014] Optionally, it further includes an in-vehicle switch;

[0015] The in-vehicle switch is connected to the in-vehicle gateway.

[0016] Optionally, it further includes a directional antenna;

[0017] The directional antenna is respectively connected to the in-vehicle terminal and the trackside base station.

[0018] Optionally, it further includes a network management device;

[0019] The network management device is connected to the trackside cache server.

[0020] Optionally, the network management device is connected to the trackside cache server through a wired internal network.

[0021] As can be seen from the above technical solutions, the embodiments of the present invention have the following advantages:

[0022] The embodiments of the present invention provide an in-vehicle data transmission system, including: an in-vehicle data acquisition module, an in-vehicle gateway, an in-vehicle terminal, a trackside base station, and a trackside cache server; the in-vehicle gateway and the in-vehicle terminal are arranged on the vehicle side; the trackside base station and the trackside cache server are arranged on the trackside; the in-vehicle data acquisition module is connected to the in-vehicle gateway; the in-vehicle gateway is connected to the in-vehicle terminal; the in-vehicle terminal is connected to the trackside base station through millimeter waves; the trackside base station is connected to the trackside cache server.

[0023] In the present invention, the in-vehicle data acquisition module is used to acquire in-vehicle data. The in-vehicle data acquisition module is connected to the in-vehicle gateway and is used to transmit the acquired in-vehicle data to the in-vehicle gateway. The in-vehicle terminal is wirelessly connected to the trackside base station arranged on the trackside, thereby completing the construction of the data transmission link from the vehicle side to the trackside, enabling the in-vehicle gateway to be wirelessly connected to the trackside base station through the in-vehicle terminal, so that the in-vehicle gateway can wirelessly and remotely transmit in-vehicle data to the trackside base station; the trackside base station is connected to the trackside cache server and is used to transmit the received in-vehicle data to the trackside cache server, and the trackside cache server is used to store in-vehicle data. Therefore, in the present invention, by arranging the in-vehicle gateway and the in-vehicle terminal on the vehicle side and arranging the trackside base station and the trackside cache server on the trackside, the construction of the data transmission channel from the vehicle side to the trackside is realized, enabling the in-vehicle data on the vehicle side to be transmitted back to the trackside cache server through the air interface, thus solving the problem that the existing in-vehicle data storage device is likely to affect the transmission and storage of in-vehicle data and reducing the in-vehicle data transmission efficiency, and improving the in-vehicle data transmission efficiency. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of a vehicle-mounted data transmission system provided in an embodiment of the present invention;

[0026] Figure 2 It is another schematic structural diagram of a vehicle-mounted data transmission system provided in an embodiment of the present invention. Detailed implementation manners

[0027] The present invention provides a vehicle-mounted data transmission system, which is used to solve the problem that the existing vehicle-mounted data storage device is likely to affect the transmission and storage of vehicle-mounted data and reduce the vehicle-mounted data transmission efficiency.

[0028] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "front", "rear", "upper", "lower", "both ends", "center", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. Relative terms such as "first", "second", etc. are only used to distinguish one entity from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] Please refer to Figure 1-2 In an embodiment of a vehicle-mounted data transmission system provided in an embodiment of the present utility model, it includes: a vehicle-mounted data acquisition module 1, a vehicle-mounted gateway 2, a vehicle-mounted terminal 3, a trackside base station 4, and a trackside cache server 5; the vehicle-mounted gateway 2 and the vehicle-mounted terminal 3 are arranged on the vehicle-mounted side; the trackside base station 4 and the trackside cache server 5 are arranged on the trackside; the vehicle-mounted data acquisition module 1 is connected to the vehicle-mounted gateway 2; the vehicle-mounted gateway 2 is connected to the vehicle-mounted terminal 3; the vehicle-mounted terminal 3 is wirelessly connected to the trackside base station 4; the trackside base station 4 is connected to the trackside cache server 5.

[0032] It should be noted that the vehicle-mounted side refers to the train side. The trackside refers to both sides of the train track. Among them, the specific positions of the vehicle-mounted gateway 2, the vehicle-mounted terminal 3, the trackside base station 4, and the trackside cache server 5 can be set according to actual needs. In one example, the vehicle-mounted terminal 3 and the vehicle-mounted gateway 2 can be arranged on the train roof.

[0033] Among them, the vehicle-mounted data acquisition module 1 is used to acquire vehicle-mounted data. The vehicle-mounted gateway 2 is used to receive vehicle-mounted data. The vehicle-mounted terminal 3 is used to establish a communication connection with the trackside base station 4, so as to establish a data transmission link for the data transmission between the vehicle-mounted gateway 2 and the trackside base station 4. The trackside base station 4 is used to establish a communication connection with the vehicle-mounted terminal 3, receive the vehicle-mounted data transmitted by the vehicle-mounted gateway 2, and transmit the vehicle-mounted data to the trackside cache server 5. The trackside cache server 5 is used to store vehicle-mounted data.

[0034] In this embodiment, the vehicle-mounted terminal 3 is wirelessly connected to the trackside base station 4 arranged on the trackside, building a data transmission link from the vehicle-mounted side to the trackside, so that the vehicle-mounted gateway 2 can be wirelessly connected to the trackside base station 4 through the vehicle-mounted terminal 3, and further enabling the vehicle-mounted gateway 2 to wirelessly and remotely transmit vehicle-mounted data to the trackside base station 4; the trackside base station 4 is connected to the trackside cache server 5, and is used to transmit the received vehicle-mounted data to the trackside cache server 5. Therefore, in this embodiment, by setting the vehicle-mounted gateway 2 and the vehicle-mounted terminal 3 on the vehicle-mounted side, and by setting the trackside base station 4 and the trackside cache on the trackside, the construction of the data transmission link from the vehicle-mounted side to the trackside is realized, enabling the vehicle-mounted data on the vehicle-mounted side to be directly transmitted back to the trackside cache server 5 through air interface transmission, thus solving the problem that the existing vehicle-mounted data storage device is likely to affect the transmission and storage of vehicle-mounted data and reduce the vehicle-mounted data transmission efficiency, and improving the vehicle-mounted data transmission efficiency.

[0035] In a preferred embodiment, the vehicle-mounted data includes vehicle-mounted CCTV video data, pantograph video monitoring data, driver's cab video monitoring data, and vehicle body side video monitoring data.

[0036] In a preferred embodiment, the on-vehicle terminal 3 is connected to the wayside base station 4 through the 60 GHz millimeter wave band frequency.

[0037] In a preferred embodiment, the transmission protocol between the on-vehicle terminal 3 and the wayside base station 4 includes the 802.11ad / ay protocol.

[0038] It should be noted that in this embodiment, the on-vehicle terminal 3 is connected to the wayside base station 4 using the 60 GHz millimeter wave band frequency and uses the 802.11ad / ay protocol for data transmission, which improves the transmission efficiency of on-vehicle data, realizes high-speed data backhaul, and enhances the security of data transmission, avoiding the low transmission efficiency caused by factors such as hard disk failures, damage, and loss in the existing on-vehicle data transmission methods.

[0039] In a preferred embodiment, the on-vehicle gateway 2 is connected to the on-vehicle terminal 3 through a network cable.

[0040] In a preferred embodiment, the wayside base station 4 is connected to the wayside high-speed cache server 5 through a network cable.

[0041] In a preferred embodiment, the number of on-vehicle terminals 3 is at least one, and the wayside base station 4 is connected to at least one on-vehicle terminal 3.

[0042] It should be noted that the wireless interconnection between the wayside base station 4 and the on-vehicle terminal 3 uses the 802.11ad / ay protocol for interaction and can be used to receive the wireless signals of the on-vehicle terminal 3. The 802.11ad / ay protocol supports Ptmp point-to-multipoint TDMA access. Therefore, in this embodiment, one wayside base station 4 can interact with multiple on-vehicle terminals 3 simultaneously.

[0043] In a preferred embodiment, the on-vehicle data acquisition module 1 includes a video recorder.

[0044] In a preferred embodiment, an on-vehicle switch is further included;

[0045] The on-vehicle switch is connected to the on-vehicle gateway 2.

[0046] It should be noted that the on-vehicle gateway 2 is used to receive the data transmitted by the on-vehicle switch and transmit this data to the wayside high-speed cache server 5.

[0047] In a preferred embodiment, a directional antenna is further included;

[0048] The directional antenna is respectively connected to the on-vehicle terminal 3 and the wayside base station 4.

[0049] It should be noted that in this embodiment, by setting a directional antenna to assist in the transmission of in-vehicle data, the reliability of the communication connection between the in-vehicle terminal 3 and the trackside base station 4 is improved, thereby enhancing the efficiency of in-vehicle data transmission.

[0050] In an application scenario, the existing beamforming technology can also be applied to the system provided in this embodiment, so that the in-vehicle terminal 3 and the trackside base station 4 can automatically establish a link, further improving the efficiency of in-vehicle data transmission.

[0051] In a preferred embodiment, it further includes a network management device 6;

[0052] The network management device 6 is connected to the trackside cache server 5.

[0053] It should be noted that the network management device 6 can be used to monitor and display the in-vehicle data stored in the trackside cache server 5. And the network management device 6 can, based on the connection relationship between the trackside cache server and the trackside base station 4, the connection relationship between the trackside base station 4 and the in-vehicle terminal 3, and the connection relationship between the in-vehicle terminal 3 and the in-vehicle gateway 2, realize the display and monitoring of the operating states of the trackside base station 4, the in-vehicle terminal 3, and the in-vehicle gateway 2.

[0054] In a preferred embodiment, the network management device 6 is connected to the trackside cache server 5 through a wired internal network.

[0055] In a preferred embodiment, the in-vehicle data transmission system provided by the present utility model can be connected to more devices and sensors through a network interface to realize the data feedback of multiple devices, thereby meeting the more expansion needs of users.

[0056] In a usage scenario, the functions of adding, deleting, modifying, and querying the configuration of devices, upgrading the software version, restarting the devices, and displaying the states of the devices can also be realized by using the network management device 6 provided by the present utility model.

[0057] In a usage scenario, when the 802.11ad / ay transmission protocol is applied to the in-vehicle terminal 3 and the trackside base station 4 provided in this embodiment, the access mode of the wireless signal of the in-vehicle terminal 3 accessed by the trackside base station 4 can be realized according to the process of access, authentication, authorization, and access completion. It can be understood that the foregoing access mode is an exemplary illustration and is not the content claimed by the present utility model. Those skilled in the art can also adopt other existing access modes according to their own usage requirements when using the system provided by the present utility model.

[0058] In a usage scenario, the vehicle-mounted gateway 2 provided by the present utility model supports the function of resuming interrupted data transfer. When using the vehicle-mounted gateway 2 provided by the present utility model, the data transfer mode of the vehicle-mounted gateway 2 can be set to the resuming interrupted data transfer mode, so that it can continue to transfer from the interrupted position without having to re-transfer the entire data file (such as video data), thus achieving efficient transfer.

[0059] The following is an exemplary description of the principle of resuming interrupted data transfer:

[0060] After the vehicle-mounted terminal 3 establishes a connection with the trackside base station 4, the vehicle-mounted gateway 2 packs vehicle-mounted data and other data into data packets, records the connection time between the vehicle-mounted terminal 3 and the trackside base station 4, and starts to transfer the data packets, and verifies the data packets during the transfer process. If within the specified time, after receiving the data packet confirmation information from the gateway device of the trackside cache server 5, it is considered that the data packet transfer is successful. If not, the data packet is lost and the data packet is re-transferred. If after three re-transfers, the data packet confirmation information still cannot be received and normal data communication cannot be carried out, it means that the vehicle-mounted terminal 3 and the trackside base station 4 have been disconnected. The vehicle-mounted gateway 2 records the current disconnection time and the data packet, and waits until the vehicle-mounted terminal 3 accesses the trackside base station 4 next time. Starting from the data packet transferred at the previous disconnection time, the transfer continues until the transfer of the data packet is successfully completed. After receiving the confirmation information, the second data packet is transferred until the transfer of all cached data is completed.

[0061] In another usage scenario, when the data transfer mode of the vehicle-mounted gateway 2 is set to resume interrupted data transfer, a vehicle-mounted resuming interrupted data transfer server can also be set to assist the vehicle-mounted gateway 2 to complete the resuming interrupted data transfer of the data packets. Among them, the vehicle-mounted resuming interrupted data transfer server can interact with the trackside cache server 5 through a private protocol, so that the trackside cache server 5 responds to the data packet transfer request of the vehicle-mounted resuming interrupted data transfer server through the protocol and makes the trackside cache server 5 confirm the reception status of the data packets.

[0062] In summary, a vehicle-mounted data transfer system provided by the present utility model has at least one of the following advantages.

[0063] 1) High-speed transfer. A vehicle-mounted data transfer system provided by the present utility model can directly transfer data through the air interface and network link connection and directly return it to the system background without using a hard disk for transfer and storage.

[0064] 2) High security. A vehicle-mounted data transfer system provided by the present utility model adopts a highly reliable data transfer protocol and technology, avoiding problems such as abnormal vehicle-mounted data transfer and low efficiency caused by hard disk failures, damages, losses, etc.

[0065] 3) Strong expandability. A vehicle-mounted data transmission system provided by the present utility model can be connected to more devices and sensors through a network interface to realize the data feedback of multiple devices, thereby meeting the needs of users for more expansions.

[0066] 4) Convenient maintenance. A vehicle-mounted data transmission system provided by the present utility model can perform fault queries through the system background, and the fault points can be directly seen in the background, which is more intuitive and convenient and easy to maintain.

[0067] 5) High reliability. By adopting the high-frequency characteristics of the millimeter-wave frequency band and multiple antennas to construct a vehicle-ground communication link, the present utility model provides functions of high-speed bandwidth, low latency, interference-free, safe and reliable automatic connection, and automatic high-speed transfer of video data for vehicle-ground communication during use, which better meets the requirements for high-speed data transmission and real-time performance in vehicle-ground communication. Moreover, the application of this system can not only avoid adding a large number of solid-state drives in the vehicle-mounted NVR, but also avoid the damage of the solid-state drives caused by the vibration environment during the operation of the train, resulting in high data transmission operation and maintenance costs and low data transmission reliability. It greatly improves the intelligent operation and maintenance level of the train.

[0068] The above has introduced in detail a vehicle-mounted data transmission system provided by the present utility model. For those of ordinary skill in the art, according to the idea of the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. A vehicle-mounted data transmission system, characterized in that: include: On-board data acquisition module, on-board gateway, on-board terminal, trackside base station, trackside cache server, directional antenna, on-board breakpoint resume server; The vehicle-mounted gateway and the vehicle-mounted terminal are arranged on the vehicle-mounted end; the trackside base station and the trackside high-speed cache server are arranged on the trackside end; the vehicle-mounted gateway is a gateway with a breakpoint resume function; The vehicle-mounted data acquisition module is connected to the vehicle-mounted gateway; The vehicle gateway is connected to the vehicle terminal; The vehicle-mounted terminal is wirelessly connected to the trackside base station; The trackside base station is connected to the trackside cache server; The directional antenna is connected to the vehicle-mounted terminal and the trackside base station respectively; The vehicle-mounted breakpoint resume server is connected to the trackside high-speed cache server via a private protocol; The transmission protocol between the vehicle-mounted terminal and the trackside base station includes the 802.11ad / ay protocol; the 802.11ad / ay protocol supports point-to-multipoint TDMA access of Ptmp; There are multiple on-board terminals, and the trackside base station is connected to the multiple on-board terminals.

2. The system according to claim 1, characterized in that The vehicle-mounted terminal is connected to the trackside base station via a 60Ghz millimeter wave band frequency.

3. The system according to claim 1, characterized in that The vehicle-mounted gateway is connected to the vehicle-mounted terminal via a network cable.

4. The system according to claim 1, characterized in that The trackside base station is connected to the trackside high-speed cache server via a network cable.

5. The system according to claim 1, characterized in that Also includes an onboard switch; The vehicle-mounted switch is connected to the vehicle-mounted gateway.

6. The system according to any one of claims 1 to 5, characterized in that: It also includes a network management device; The network management device is connected to the trackside high-speed cache server.

7. The system according to claim 6, characterized in that The network management device is connected to the trackside high-speed cache server via a wired intranet.

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