CN216286262U - Vehicle-mounted wireless transmission device - Google Patents
Vehicle-mounted wireless transmission device Download PDFInfo
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- CN216286262U CN216286262U CN202123120480.XU CN202123120480U CN216286262U CN 216286262 U CN216286262 U CN 216286262U CN 202123120480 U CN202123120480 U CN 202123120480U CN 216286262 U CN216286262 U CN 216286262U
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Abstract
The utility model discloses a vehicle-mounted wireless transmission device, which comprises: the system comprises a TRDP board card, a CPU board card, a firewall board card, a 5G board card and a 5G millimeter wave board card; the CPU board card is used for acquiring train-ground real-time data and train-ground non-real-time data from the train control network through the TRDP board card; the 5G millimeter wave board card is used for accessing the 5G millimeter wave network through a millimeter wave antenna when the train moves to an area covered by the 5G millimeter wave network, and transmitting the train-ground non-real-time data to a ground data workstation through the 5G millimeter wave network according to the instruction of the CPU board card; the 5G board card is used for establishing a 5G wireless transmission channel through a 5G antenna and transmitting the vehicle-ground real-time data to a ground data center through the 5G wireless transmission channel according to the instruction of the CPU board card. The utility model is beneficial to improving the real-time performance and the transmission efficiency of train data transmission.
Description
Technical Field
The utility model belongs to the technical field of vehicle-mounted data transmission, and particularly relates to a vehicle-mounted wireless transmission device.
Background
With the rapid development of high-speed railways, the scale of a road network is rapidly expanded, more and more motor train units are put into use, the motor train units on all roads realize the landing of train operation data through a vehicle-mounted Wireless Transmission Device (WTD) so as to meet the great challenges of safe operation and daily maintenance work, and technical guarantees are provided for ground emergency command, fault monitoring and the like.
The ground data of a vehicle-mounted Wireless Transmission Device (WTD) comprises two parts, namely vehicle-ground real-time data comprising part of train operation parameters, positioning data, fault data and the like; and the other is vehicle-ground non-real-time data which comprises complete operation data and the like generated by each vehicle-mounted device.
However, with the development of intelligentization and equipment health management technologies, data generated by vehicle-mounted equipment is growing at a high speed. At present, a 4G/2G access device is configured in a vehicle-mounted Wireless Transmission Device (WTD), real-time data of a train and a ground are mainly transmitted through a 4G/2G network, and the real-time data of the train and the ground are limited by network bandwidth and only can periodically transmit a small part of train operation data; the vehicle-mounted Wireless Transmission Device (WTD) is also provided with a WiFi board card, which is also limited by bandwidth, non-real-time data of a train and a ground are mainly acquired by WiFi transmission or even manual downloading, so that the defects of poor real-time performance, low efficiency and the like of data transmission are gradually exposed, and the potential of train operation data in aspects of fault analysis, health management and the like can not be effectively exerted.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the background art, the present invention provides a vehicle-mounted wireless transmission device, including: the system comprises a TRDP board card, a CPU board card, a firewall board card, a 5G board card and a 5G millimeter wave board card; the TRDP board card is connected with a train control network, the CPU board card is connected with the TRDP board card, and the 5G board card and the 5G millimeter wave board card are both connected with the CPU board card through the firewall board card;
the TRDP board is used for realizing data interaction with the train control network according to a TRDP protocol;
the CPU board card is used for acquiring train-ground real-time data and train-ground non-real-time data from the train control network through the TRDP board card;
the firewall board card is used for isolating the 5G board card and the 5G millimeter wave board card from the CPU board card;
the 5G millimeter wave board card is used for accessing the 5G millimeter wave network through a millimeter wave antenna when the train moves to an area covered by the 5G millimeter wave network, and transmitting the train-ground non-real-time data to a ground data workstation through the 5G millimeter wave network according to the instruction of the CPU board card;
the 5G board card is used for establishing a 5G wireless transmission channel through a 5G antenna and transmitting the vehicle-ground real-time data to a ground data center through the 5G wireless transmission channel according to the instruction of the CPU board card.
Optionally, the vehicle-mounted wireless transmission apparatus further includes: a first switch board card; the first switch board card is connected with the CPU board card through the firewall board card, and the first switch board card comprises a plurality of Ethernet interfaces for connecting external equipment.
Optionally, the vehicle-mounted wireless transmission apparatus further includes: PHM board card; the PHM board card is connected with the train control network and used for acquiring train operation data from the train control network and predicting faults according to the train operation data.
Optionally, the vehicle-mounted wireless transmission apparatus further includes: a second switch board card; and the second switch board card is connected with the CPU board card.
Optionally, the vehicle-mounted wireless transmission apparatus further includes: PHM board card; and the PHM board card is connected with the second switch board card and used for acquiring train operation data from the CPU board card through the second switch board card and predicting faults according to the train operation data.
Optionally, the 5G board card is connected with the Beidou antenna; the 5G board card is further used for obtaining the Beidou satellite positioning information and the speed information of the train through the Beidou antenna.
Optionally, the vehicle-mounted wireless transmission apparatus further includes: the power integrated circuit board, the power integrated circuit board is used for being the TRDP integrated circuit board, the CPU integrated circuit board, prevent hot wall integrated circuit board 5G integrated circuit board and 5G millimeter wave integrated circuit board carry out the power supply.
Optionally, the 5G wireless transmission channel is specifically a 5G Sub6 frequency band wireless transmission channel.
Optionally, the dominant frequency of the CPU board card is at least 1.2GHz, and the dominant frequencies of the 5G board card and the 5G millimeter wave board card are at least 1 GHz.
Optionally, the power supply board card provides a 24V DC power supply to supply power to the CPU board card, the firewall board card, the 5G board card, and the 5G millimeter wave board card; the power supply board card provides a 5V DC power supply to supply power for the TRDP board card.
The utility model has the beneficial effects that:
according to the utility model, the non-real-time data of the train and the ground are transmitted to the ground data workstation through the 5G millimeter wave network when the train moves to the area covered by the 5G millimeter wave network through the 5G millimeter wave board card, the 5G wireless transmission channel is established through the 5G antenna, and the real-time data of the train and the ground are transmitted to the ground data center through the 5G wireless transmission channel.
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 description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
fig. 1 is a first schematic view of a vehicle-mounted wireless transmission apparatus according to an embodiment of the present invention;
fig. 2 is a second schematic view of a vehicle-mounted wireless transmission apparatus according to an embodiment of the present invention;
fig. 3 is a front view of the vehicle-mounted wireless transmission apparatus according to the embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It is to be understood that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the utility model and the above-described drawings are intended to cover non-exclusive inclusions.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
At present, the vehicle-mounted data landing is realized through a high-efficiency, safe and reliable wireless end data transmission technology, ground emergency command, fault monitoring and daily maintenance are assisted, and the problem to be solved in safety operation of the Chinese high-speed rail is urgently solved. The utility model meets the requirement by providing the vehicle-mounted data wireless transmission equipment based on the wireless access technology, can support a 5G network, and realizes high-speed landing of vehicle-mounted real-time data and non-real-time data.
As shown in fig. 1 and 2, in one embodiment of the present invention, a vehicle-mounted Wireless Transmission Device (WTD) of the present invention includes: the system comprises a TRDP board card, a CPU board card, a firewall board card, a 5G board card and a 5G millimeter wave board card.
The TRDP board card is connected with a train control network, the CPU board card is connected with the TRDP board card, and the 5G board card and the 5G millimeter wave board card are connected with the CPU board card through the firewall board card.
And the TRDP board card is used for realizing data interaction with the train control network according to a TRDP protocol.
In an embodiment of the present invention, the TRDP board implements a TRDP protocol in a hardware manner, and implements data interaction between a vehicle-mounted Wireless Transmission Device (WTD) and a train control network. The TRDP board card comprises 3M 12 Ethernet interfaces and is connected with a train control network.
And the CPU board card is used for acquiring train-ground real-time data and train-ground non-real-time data from the train control network through the TRDP board card.
In one embodiment of the utility model, the CPU board is a central processing unit of the whole device, and the board is extended with two ethernet interfaces (M12); and can obtain the train control network data through the TRDP board card, realize each item function of system design.
The firewall board card is used for isolating the 5G board card and the 5G millimeter wave board card from the CPU board card.
In an embodiment of the present invention, the firewall board card is also called as an FW board card, and is used to isolate the train control network from the sub-devices having interfaces with the external network, such as the 5G millimeter wave board card, the 5G board card, and the first switch board card (external switch board card), so as to ensure the data communication security of the control network. The firewall board card comprises 1M 12 Ethernet interface connected with the train control network.
The 5G millimeter wave board card is used for accessing the 5G millimeter wave network through the millimeter wave antenna when the train moves to the area covered by the 5G millimeter wave network, and transmitting the train-ground non-real-time data to the ground data workstation through the 5G millimeter wave network according to the instruction of the CPU board card.
In one embodiment of the utility model, the 5G millimeter wave board card is used for establishing wireless connection after the train moves to the area covered by the 5G millimeter wave network, and transmitting the train-ground non-real-time data to the ground data workstation at high speed. The 5G millimeter wave board card comprises 1 gigabit M12 Ethernet interface with POE function and is used for connecting the millimeter wave antenna; 1M 12 Ethernet interface is connected with the train control network; 1 110V DC power interface.
In one embodiment of the utility model, the station is provided with a 5G millimeter wave base station for generating a 5G millimeter wave network to cover the station area, and when a train moves to the station, the wireless connection is automatically established with the 5G millimeter wave network of the station, so as to perform data transmission.
The 5G board card is used for establishing a 5G wireless transmission channel through a 5G antenna and transmitting the vehicle-ground real-time data to a ground data center through the 5G wireless transmission channel according to the instruction of the CPU board card.
In an embodiment of the utility model, the 5G board card is equipped with the SIM card, the 5G board card is responsible for establishing a 5G Sub6 frequency band wireless transmission channel, and the real-time train-ground data in the running process of the train is firstly sent to the mobile public network and then transmitted to the ground data center according to the control command of the CPU board card.
In one embodiment of the utility model, the 5G board card is connected with a Beidou antenna; the 5G board card is further used for obtaining Beidou satellite positioning information, time information and speed information of the train through the Beidou antenna.
In one embodiment of the utility model, the 5G board card is integrated with a Beidou satellite navigation system (BDS function) at the same time, and information such as BDS positioning, time and speed of a train is provided for the system.
In one embodiment of the utility model, the 5G board card is provided with 2 SMA interfaces, one is connected with a roof 5G antenna, one is connected with a roof Beidou antenna, and an RJ45 Ethernet interface is expanded for configuration or debugging.
In one embodiment of the utility model, a first switch board card; the first switch board card is connected with the CPU board card through the firewall board card, and the first switch board card comprises a plurality of Ethernet interfaces for connecting external equipment.
In one embodiment of the present invention, the first switch board is also called an internal switch board, and a panel of the first switch board includes 7M 12 ethernet interfaces for secure communication between the external device and the control network.
In an embodiment of the present invention, the vehicle-mounted wireless transmission apparatus of the present invention further includes: PHM board card; the PHM board card is connected with the train control network and used for acquiring train operation data from the train control network and predicting faults according to the train operation data.
In an embodiment of the utility model, the PHM board is responsible for receiving, storing and using data sent by other devices, and implementing functions related to fault prediction and health management, and the board includes 1M 12 ethernet interface connected to a train control network.
In an embodiment of the present invention, the vehicle-mounted wireless transmission apparatus of the present invention further includes: a second switch board card; and the second switch board card is connected with the CPU board card.
In a specific embodiment of the present invention, the second switch board is connected to the firewall board, and the second switch board is connected to the CPU board through the firewall board.
In an embodiment of the present invention, the second switch board card is also called an external switch board card, and the second switch board card includes: a non-network management type ethernet switch. The second switch board is compliant with the IEEE802.3 standard and with the IEC61375-3-4 standard, and includes an RJ45 ethernet interface for configuration or debugging.
In an embodiment of the present invention, the PHM board card is connected to the second switch board card, and is configured to obtain train operation data from the CPU board card through the second switch board card, and perform fault prediction according to the train operation data.
In an embodiment of the present invention, the vehicle-mounted wireless transmission apparatus of the present invention further includes: and the power supply board card supplies power to each board card. The power board card converts the 110VDC into 24VDC and 5 VDC; the 24VDC is used by a 5G millimeter wave board card, a 5G board card, a first switch board card, a firewall board card, a PHM board card, a second switch board card and a CPU card, and the 5VDC is used by a TRDP board card.
In one embodiment of the utility model, the CPU board card has a main frequency of at least 1.2GHz, and the 5G board card and the 5G millimeter wave board card have main frequencies of at least 1GHz, so that a calculation support is provided for high-speed data transmission of the train and the ground. The PHM board card has a main frequency of at least 4 cores and 1.5Ghz, and provides calculation support for related functions of fault prediction and health management.
In one embodiment of the utility model, the power board is a 110V DC/DC isolation power module, and the input range of the external power supply is-30% to + 25%. The CPU board card comprises at least 1GB memory and a 4GB industrial wide and warm CFast card, and the 5G millimeter wave board card comprises at least 128GB industrial wide and warm SSD, so that stable and reliable high-speed transmission data cache is provided, the vehicle-ground data transmission efficiency is improved, and the stable operation of the whole vehicle-ground communication link is ensured.
In one embodiment of the utility model, the power board card is a 110V DC/DC high-reliability vehicle-mounted isolation power module, and the input range of the external power supply is-30% to + 25%. Has extremely high conversion efficiency and good thermal design, and meets the relevant requirements of GB/T25119 electromagnetic compatibility.
The performance and configuration of 5 main board cards, namely 5G millimeter wave board cards, 5G board cards, FW board cards (firewall board cards), MSD board cards (PHM board cards) and CPU board cards are as follows:
5G millimeter wave board card:
1) dominant frequency: ARM single core, 1GHz dominant frequency;
2) onboard 512M memory: 8GB onboard storage is carried out on the 1-path independent channel; 1-way standard SATA interface 128GB storage;
3) a front panel 1-path M12 power interface, a 1-path 100M Ethernet M12 interface, a 1-path 1G Ethernet M12 interface and a backboard 1-path 100M Ethernet interface;
4) operating the system: linux.
5G board card:
1) dominant frequency: ARM single core, 1GHz dominant frequency;
2) onboard 512M memory: 8GB onboard storage is carried out on the 1-path independent channel;
3) a front panel 1-path 100M Ethernet RJ45 interface, a 2-path SMA antenna interface and a back panel 1-path 100M Ethernet interface;
4) operating the system: linux.
FW board (firewall board):
1) dominant frequency: x86 tetranuclear 1.6 GHz;
2) carrying 8GB memory on board; 64GB onboard storage with 1 path of independent channels;
3) front panel 1 way 100M ethernet RJ45 interface; a 4-way 100M Ethernet RJ45 interface on the backboard;
MSD board (PHM board):
1) dominant frequency: 1 kilomega network port on the back plate, 1 hundred mega network port on the panel and 1 USB port;
2) the SATA disk with 512G 2.5 inches is easy to lose as a hole is formed in the front panel;
3) front panel 1 way 100M ethernet RJ45 interface;
4) operating the system: linux.
CPU board card:
1) dominant frequency: x86 mononuclear 1.46 GHz;
2) onboard 2GB memory; 8GB onboard storage is carried out on the 1-path independent channel; 1, standard SATA interface can expand CFast storage;
3) a front panel 2-way 100M Ethernet RJ45 interface; 1-path 2-wire serial port and 1-path CAN interface; 1 path of USB2.0 interface;
4) operating the system: QNX 6.5.
TRDP board card:
1) dominant frequency: arm binuclear 0.8 GHz;
2) onboard 1GB memory; 8GB onboard storage is carried out on the 1-path independent channel;
3) a front panel 3-way 100M ethernet M12 interface;
4) operating the system: QNX 6.5.
The above 5 main boards of the present invention can be divided into 5 partial data access layers, data processing layers, data security layers, data persistence layers, and data transmission layers from the function division of the wireless transmission device.
The TRDP board card belongs to a data access layer, and based on a TRDP network protocol, the TRDP board card completes the unified receiving and sending of all TCMS network data.
The CPU board card belongs to a data processing layer, acquires TCMS network train operation data through the TRDP board card, analyzes the TCMS network data by utilizing high-efficiency processing capacity, and packs real-time data and non-real-time data according to formats required by a data forwarding layer and a data persistence layer.
The FW board card (firewall board card) belongs to a data security layer and is responsible for security isolation of a TCMS network and an external network (5G network) so as to realize security communication between the CPU board card and the 5G board card as well as between the CPU board card and the 5G millimeter wave board card.
The MSD board card (PHM board card) and the 5G millimeter wave board card belong to a data persistence layer, and the persistent storage of non-real-time data generated by a data processing layer (CPU board card) is realized through a large-capacity high-speed storage module so as to be used for subsequent analysis and processing work.
The 5G board card and the 5G millimeter wave board card belong to a data transmission layer, so that real-time data and non-real-time data generated by a data processing layer (CPU board card) are transmitted to a corresponding ground system at a high speed, and the safety, real-time performance, accuracy and completeness of data transmission are ensured. The 5G board card is responsible for real-time data falling to the ground, and the 5G millimeter wave board card is responsible for non-real-time data falling to the ground.
Fig. 3 is a specific embodiment of the vehicle-mounted wireless transmission device of the present invention, in which an Airflash board card is used as the 5G millimeter wave board card in this embodiment. As shown in fig. 3, in the embodiment of the present invention, the vehicle-mounted wireless transmission device of the present invention adopts a standard 3U chassis, which is composed of 9 boards, and includes: the system comprises an Airflash board card, a PTU board card (a first switch board card), a 5G board card, a FW board card (a firewall board card), an MSD board card (a PHM board card), an EMGR board card (a second switch board card), a CPU board card, a TRDP board card and a power supply board card. Each board card is firmly fixed in the case, so that the anti-seismic performance is good.
It can be seen from the foregoing embodiments that the present invention provides a wireless data transmission device for vehicle data based on a wireless access technology, which can access a train control network to obtain operation data, and simultaneously support a novel wireless access technology such as 5G, and send train operation parameters and events/faults to a ground system through a train-ground high-speed wireless transmission channel according to a predetermined format, thereby facilitating improvement of real-time performance and transmission efficiency of train data transmission.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An in-vehicle wireless transmission device, comprising: the system comprises a TRDP board card, a CPU board card, a firewall board card, a 5G board card and a 5G millimeter wave board card; the TRDP board card is connected with a train control network, the CPU board card is connected with the TRDP board card, and the 5G board card and the 5G millimeter wave board card are both connected with the CPU board card through the firewall board card;
the TRDP board is used for realizing data interaction with the train control network according to a TRDP protocol;
the CPU board card is used for acquiring train-ground real-time data and train-ground non-real-time data from the train control network through the TRDP board card;
the firewall board card is used for isolating the 5G board card and the 5G millimeter wave board card from the CPU board card;
the 5G millimeter wave board card is used for accessing the 5G millimeter wave network through a millimeter wave antenna when the train moves to an area covered by the 5G millimeter wave network, and transmitting the train-ground non-real-time data to a ground data workstation through the 5G millimeter wave network according to the instruction of the CPU board card;
the 5G board card is used for establishing a 5G wireless transmission channel through a 5G antenna and transmitting the vehicle-ground real-time data to a ground data center through the 5G wireless transmission channel according to the instruction of the CPU board card.
2. The vehicle-mounted wireless transmission device according to claim 1, further comprising: a first switch board card; the first switch board card is connected with the CPU board card through the firewall board card, and the first switch board card comprises a plurality of Ethernet interfaces for connecting external equipment.
3. The vehicle-mounted wireless transmission device according to claim 1, further comprising: PHM board card; the PHM board card is connected with the train control network and used for acquiring train operation data from the train control network and predicting faults according to the train operation data.
4. The vehicle-mounted wireless transmission device according to claim 1, further comprising: a second switch board card; and the second switch board card is connected with the CPU board card.
5. The vehicle-mounted wireless transmission device according to claim 4, further comprising: PHM board card; and the PHM board card is connected with the second switch board card and used for acquiring train operation data from the CPU board card through the second switch board card and predicting faults according to the train operation data.
6. The vehicle-mounted wireless transmission device according to claim 1, wherein the 5G board card is connected with a Beidou antenna; the 5G board card is further used for obtaining the Beidou satellite positioning information and the speed information of the train through the Beidou antenna.
7. The vehicle-mounted wireless transmission device according to claim 1, further comprising: the power integrated circuit board, the power integrated circuit board is used for being the TRDP integrated circuit board, the CPU integrated circuit board, prevent hot wall integrated circuit board 5G integrated circuit board and 5G millimeter wave integrated circuit board carry out the power supply.
8. The vehicle-mounted wireless transmission device according to claim 1, wherein the 5G wireless transmission channel is a 5G Sub6 frequency band wireless transmission channel.
9. The vehicle-mounted wireless transmission device according to claim 1, wherein the CPU board card has a dominant frequency of at least 1.2GHz, and the 5G board card and the 5G millimeter wave board card have dominant frequencies of at least 1 GHz.
10. The vehicle-mounted wireless transmission device according to claim 7, wherein the power board provides 24V DC power to supply power to the CPU board, the firewall board, the 5G board and the 5G millimeter wave board; the power supply board card provides a 5V DC power supply to supply power for the TRDP board card.
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|---|---|---|---|
| CN202123120480.XU CN216286262U (en) | 2021-12-09 | 2021-12-09 | Vehicle-mounted wireless transmission device |
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|---|---|---|---|
| CN202123120480.XU CN216286262U (en) | 2021-12-09 | 2021-12-09 | Vehicle-mounted wireless transmission device |
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| CN216286262U true CN216286262U (en) | 2022-04-12 |
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