Urban rail train host equipment supporting optical communication

Abstract

The invention relates to the technical field of rail transit, and particularly discloses an urban rail train host device supporting optical communication, which comprises a 3U Compact PCI serial backboard, a CPU unit, a GPU unit, an optical communication unit, an SATA hard disk, a TRDP unit, a DIO unit, a first power supply module, a second power supply module and a reserved slot, the 3U Compact PCI serial back plate is provided with nine slot positions, and the 3U Compact PCI serial back plate is provided with nine slot positions; the CPU unit is responsible for operation control of system software; the GPU unit is used for processing data of the front-end sensor; the optical communication unit is responsible for receiving and forwarding optical fiber signals; the SATA hard disk is used for storing train operation data; the TRDP unit ensures timely and accurate transmission of data of the train control system; the DIO unit provides input and output of digital signals. The data throughput of the vehicle-mounted host equipment is improved, the transmission distance is far beyond that of an electric signal Ethernet interface, non-relay data transmission from the train head to the train tail can be covered, and the system network design of the whole train is more flexible.

Description

Technical Field

[0001] The present invention relates to the field of rail transit technology, and in particular to a mainframe device of an urban rail train supporting optical communication. Background Art

[0002] At present, with the upgrading of the rail transit industry supply chain, urban rail trains have higher and higher requirements for network transmission bandwidth, and the required data transmission distance is getting longer and longer.

[0003] In the prior art, a host device carried by an urban rail train is connected to an Ethernet switch through an Ethernet port to communicate data with front-end sensors of each train subsystem.

[0004] However, in the prior art, all train subsystem data must be transmitted to the onboard host through an Ethernet switch. The increase in subsystem data will lead to a continuous increase in the amount of data transmitted by the host device, which will in turn make the bandwidth of the host device unable to meet the demand. Summary of the invention

[0005] The purpose of the present invention is to provide a mainframe device of an urban rail train supporting optical communication, aiming to solve the technical problem in the prior art that all train subsystem data must be transmitted to the on-board mainframe through an Ethernet switch, and the increase of subsystem data will lead to a continuous increase in the amount of transmission data of the mainframe device, thereby making the bandwidth of the mainframe device unable to meet the demand.

[0006] To achieve the above-mentioned object, the present invention adopts a city rail train host device supporting optical communication, including a 3UcompactPCI serial backplane, a CPU unit, a GPU unit, an optical communication unit, a SATA hard disk, a TRDP unit, a DIO unit, a first power supply module, a second power supply module and a reserved slot;

[0007] The 3U compactPCI serial backplane provides nine slots for accessing the CPU unit, the GPU unit, the optical communication unit, the SATA hard disk, the TRDP unit, the DIO unit, the first power supply module, the second power supply module and the reserved slot;

[0008] The CPU unit is responsible for the operation control of the system software, executing the instructions and data processing in the software;

[0009] The GPU unit is used to process the data of the front-end sensor and send the processing result to the CPU unit;

[0010] The optical communication unit is responsible for receiving and forwarding optical fiber signals;

[0011] The SATA hard disk is used to store train operation data;

[0012] The TRDP unit is used for Ethernet transmission between trains and between trains and ground equipment to ensure timely and accurate transmission of data of the train control system;

[0013] The DIO unit provides input and output of digital signals, which can be used for switch control of other subsystems on the train and read the operating status of other subsystems on the train;

[0014] The first power supply module and the second power supply module convert the DC110V voltage on the train into the voltage required by each module and each unit, providing a stable power output for the entire system;

[0015] The reserved slots are used to expand system functions.

[0016] Among them, the optical communication unit includes an optical module and an FPGA. The number of the optical modules is two groups. The interfaces of the two groups of optical modules are QSFP28 respectively. The two groups of optical modules convert high-speed optical signals into electrical signals. The FPGA converts the electrical signals into PCIe format and transmits them to other unit modules through the 3U compact PCI serial backplane.

[0017] Among them, each of the optical modules adopts a hot standby redundant working mode to improve the stability of network transmission, and each of the optical modules can independently support data transmission with a maximum bandwidth of 100Gbps.

[0018] The urban rail train host device supporting optical communication further includes an encryption unit, which is connected to the reserved slot and performs hardware encryption on the host device.

[0019] Wherein, the encryption unit includes a hardware encryption module, a communication interface module, a control module, an encryption development interface module and an auxiliary module;

[0020] The hardware encryption module is used to implement various cryptographic algorithms and safely store keys;

[0021] The communication interface module is used to implement communication between the hardware encryption device and the host or other devices;

[0022] The control module is responsible for controlling the background process of the hardware encryption module and monitoring the running status of the hardware encryption module;

[0023] The encryption development interface module provides encryption functions for the system and encryption development interfaces for hardware encryption devices, which can conveniently call the encryption functions of hardware encryption devices;

[0024] The auxiliary module provides auxiliary assistance to help users better understand the operating status of the equipment and quickly locate the problem when a fault occurs.

[0025] Wherein, the auxiliary module includes a status indicator light and a status display screen, wherein the status indicator light is used to display the operating status of the encryption unit; and the status display screen is used to display the operating data of the encryption unit.

[0026] Wherein, the auxiliary module also includes an alarm module, and the alarm module is used to issue a sound alarm for abnormal status of the encryption unit.

[0027] The beneficial effects of the urban rail train host device supporting optical communication of the present invention are: improving the optical communication bandwidth, the optical communication bandwidth can reach up to 100Gbps, improving the data throughput of the on-board host device, and the transmission distance far exceeds the electrical signal Ethernet interface. In the absence of a relay, the transmission distance can reach 100m with a multi-mode optical module, and can reach more than 2km with a single-mode optical module. It can cover the relay-free data transmission from the front to the rear of the train, making the system network design of the entire train more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a system diagram of a mainframe device of an urban rail train supporting optical communication according to the present invention.

[0030] Figure 2 It is a system diagram of the encryption unit of the present invention.

[0031] Figure 3 is a system diagram of the optical communication unit of the present invention.

[0032] Figure 4 It is a structural schematic diagram of a mainframe device of an urban rail train supporting optical communication according to the present invention.

[0033] Figure 5 It is a partial structural schematic diagram of a mainframe device of an urban rail train supporting optical communication according to the present invention.

[0034] 101-3U compact PCI serial backplane, 102-CPU unit, 103-GPU unit, 104-optical communication unit, 105-SATA hard disk, 106-TRDP unit, 107-DIO unit, 108-first power supply module, 109-second power supply module, 110-reserved slot, 112-optical module, 113-FPGA, 114-encryption unit, 115-hardware encryption module, 116-communication interface module, 117-control module, 118-encryption development interface module, 119-auxiliary module, 120-status indicator light, 121-status display screen, 122-alarm module, 123-host compartment, 124-fiber access port, 125-module installation assembly, 126-3U backplane, 127-front panel, 128-pulling aid, 129-unit module body. DETAILED DESCRIPTION

[0035] See also Figures 1 to 5 , Figure 1 It is a system diagram of a mainframe device of an urban rail train supporting optical communication of the present invention; Figure 2 is a system diagram of the encryption unit of the present invention; Figure 3 is a system diagram of an optical communication unit of the present invention; Figure 4 It is a structural schematic diagram of a mainframe device of an urban rail train supporting optical communication according to the present invention; Figure 5 It is a partial structural schematic diagram of a mainframe device of an urban rail train supporting optical communication according to the present invention.

[0036] The present invention provides a city rail train host device supporting optical communication, including a 3U compact PCIserial backplane 101, a CPU unit 102, a GPU unit 103, an optical communication unit 104, a SATA hard disk 105, a TRDP unit 106, a DIO unit 107, a first power supply module 108, a second power supply module 109 and a reserved slot 110;

[0037] The 3U compact PCI serial backplane 101 provides nine slots for accessing the CPU unit 102, the GPU unit 103, the optical communication unit 104, the SATA hard disk 105, the TRDP unit 106, the DIO unit 107, the first power supply module 108, the second power supply module 109 and the reserved slot 110;

[0038] The CPU unit 102 is responsible for the operation control of the system software, executing the instructions and data processing in the software;

[0039] The GPU unit 103 is used to process the data of the front-end sensor and send the processing result to the CPU unit 102;

[0040] The optical communication unit 104 is responsible for receiving and forwarding optical fiber signals;

[0041] The SATA hard disk 105 is used to store train operation data;

[0042] The TRDP unit 106 is used for Ethernet transmission between trains and between trains and ground equipment to ensure timely and accurate transmission of data of the train control system;

[0043] The DIO unit 107 provides input and output of digital signals, which can be used for switch control of other subsystems on the train and reading the operating status of other subsystems on the train;

[0044] The first power supply module 108 and the second power supply module 109 convert the DC 110V voltage on the train into the voltage required by each module and each unit, providing a stable power output for the entire system;

[0045] The reserved slot 110 is used to expand system functions.

[0046] Furthermore, the optical communication unit 104 includes an optical module 112 and an FPGA 113. The number of the optical modules 112 is two groups. The interfaces of the two groups of optical modules 112 are QSFP28 respectively. The two groups of optical modules 112 convert high-speed optical signals into electrical signals. The FPGA 113 converts the electrical signals into PCIe format and transmits them to other unit modules through the 3U compactPCI serial backplane 101.

[0047] Furthermore, each of the optical modules 112 adopts a hot standby redundant working mode to improve the stability of network transmission, and each of the optical modules 112 can independently support data transmission with a maximum bandwidth of 100 Gbps.

[0048] Furthermore, the urban rail train host device supporting optical communication also includes an encryption unit 114, which is connected to the reserved slot 110, and the encryption unit 114 performs hardware encryption on the host device.

[0049] Further, the encryption unit 114 includes a hardware encryption module 115, a communication interface module 116, a control module 117, an encryption development interface module 118 and an auxiliary module 119;

[0050] The hardware encryption module 115 is used to implement various cryptographic algorithms and safely store keys;

[0051] The communication interface module 116 is used to implement communication between the hardware encryption device and the host or other devices;

[0052] The control module 117 is responsible for controlling the background process of the hardware encryption module 115 and monitoring the running status of the hardware encryption module 115;

[0053] The encryption development interface module 118 provides encryption functions for the system and encryption development interfaces for hardware encryption devices, which can conveniently call the encryption functions of hardware encryption devices;

[0054] The auxiliary module 119 provides auxiliary assistance to help the user better understand the operating status of the equipment and quickly locate the problem when a fault occurs.

[0055] Furthermore, the auxiliary module 119 includes a status indicator light 120 and a status display screen 121 , wherein the status indicator light 120 is used to display the operating status of the encryption unit 114 ; and the status display screen 121 is used to display the operating data of the encryption unit 114 .

[0056] Furthermore, the auxiliary module 119 also includes an alarm module 122 , and the alarm module 122 is used to issue a sound alarm for abnormal status of the encryption unit 114 .

[0057] In this embodiment, the optical communication bandwidth is improved, and the optical communication bandwidth can be up to 100Gbps, which improves the data throughput of the on-board host device. The transmission distance far exceeds the electrical signal Ethernet interface. In the absence of a relay, the transmission distance can reach 100m with a multi-mode optical module 112, and can reach more than 2km with a single-mode optical module 112. It can cover the relay-free data transmission from the front to the rear of the train, making the system network design of the entire train more flexible. At the same time, when the system parameters need to be modified, the encryption unit 114 can be connected to modify the parameters, and after the parameter modification is completed, the encryption unit 114 can be disconnected.

[0058] Furthermore, a main engine device of an urban rail train supporting optical communication includes a main engine compartment 123, an optical fiber access port 124, a module installation component 125 and a 3U backplane 126, wherein the 3U backplane 126 is embedded in the main engine compartment 123, and the number of the module installation components 125 is nine groups, each group of the module installation components 125 is respectively embedded in the main engine compartment 123, each group of the module installation components 125 is respectively adapted to the main engine compartment 123, and each group of the module installation components 125 is respectively adapted to the 3U backplane 126, and the optical fiber access port 124 is adapted to any group of the module installation components 125, and is arranged on one side of the module installation components 125.

[0059] Furthermore, each group of the module installation assembly 125 includes a front panel 127, a puller 128 and a unit module body 129, the unit module body 129 is arranged on one side of the front panel 127, and the unit module body 129 and the 3U backplane 126 are adapted to each other, and the puller 128 is fixedly connected to the front panel 127 and is located on one side of the front panel 127.

[0060] In this embodiment, the host compartment 123 installs and fixes the 3U backplane 126, and each group of the module installation components 125 installs and fixes multiple unit module bodies 129 respectively, and the unit module body 129 includes the CPU unit 102, the GPU unit 103, the optical communication unit 104, the SATA hard disk 105, the TRDP unit 106, the DIO unit 107, the first power supply module 108 and the second power supply module 109, and the host compartment 123 is closed by the front panel 127 and the puller 128, and the fiber optic access port 124 is connected to the optical communication unit 104, converts the optical signal into an electrical signal, and then converts the electrical signal into a PCIe format, and finally transmits it to the CPU unit 102, the GPU unit 103, the SATA hard disk 105, the TRDP unit 106, the DIO unit 107, the first power supply module 108 and the second power supply module 109.

[0061] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A main equipment of a city rail train supporting optical communication, characterized in that: Includes 3U compactPCI serial backplane, CPU unit, GPU unit, optical communication unit, SATA hard disk, TRDP unit, DIO unit, first power supply module, second power supply module and reserved slot; The 3U compact PCI serial backplane provides nine slots for accessing the CPU unit, the GPU unit, the optical communication unit, the SATA hard disk, the TRDP unit, the DIO unit, the first power supply module, the second power supply module and the reserved slot; The CPU unit is responsible for the operation control of the system software, executing the instructions and data processing in the software; The GPU unit is used to process the data of the front-end sensor and send the processing result to the CPU unit; The optical communication unit is responsible for receiving and forwarding optical fiber signals; The SATA hard disk is used to store train operation data; The TRDP unit is used for Ethernet transmission between trains and between trains and ground equipment to ensure timely and accurate transmission of data of the train control system; The DIO unit provides input and output of digital signals, which can be used for switch control of other subsystems on the train and read the operating status of other subsystems on the train; The first power supply module and the second power supply module convert the DC110V voltage on the train into the voltage required by each module and each unit, providing a stable power output for the entire system; The reserved slots are used to expand system functions.

2. The urban rail train host device supporting optical communication according to claim 1, characterized in that: The optical communication unit includes an optical module and an FPGA. The number of the optical modules is two groups. The interfaces of the two groups of optical modules are QSFP28 respectively. The two groups of optical modules convert high-speed optical signals into electrical signals. The FPGA converts the electrical signals into PCIe format and transmits them to other unit modules through the 3U compact PCI serial backplane.

3. The urban rail train host device supporting optical communication as claimed in claim 2, characterized in that: Each of the optical modules adopts a hot standby redundant working mode to improve the stability of network transmission. Each of the optical modules can independently support data transmission with a maximum bandwidth of 100Gbps.

4. The urban rail train host device supporting optical communication according to claim 1, characterized in that: The urban rail train host device supporting optical communication also includes an encryption unit, which is connected to the reserved slot and performs hardware encryption on the host device.

5. The urban rail train host device supporting optical communication as claimed in claim 4, characterized in that: The encryption unit includes a hardware encryption module, a communication interface module, a control module, an encryption development interface module and an auxiliary module; The hardware encryption module is used to implement various cryptographic algorithms and safely store keys; The communication interface module is used to implement communication between the hardware encryption device and the host or other devices; The control module is responsible for controlling the background process of the hardware encryption module and monitoring the running status of the hardware encryption module; The encryption development interface module provides encryption functions for the system and encryption development interfaces for hardware encryption devices, which can conveniently call the encryption functions of hardware encryption devices; The auxiliary module provides auxiliary assistance to help users better understand the operating status of the equipment and quickly locate the problem when a fault occurs.

6. The urban rail train host device supporting optical communication as claimed in claim 5, characterized in that: The auxiliary module includes a status indicator light and a status display screen. The status indicator light is used to display the operating status of the encryption unit; the status display screen is used to display the operating data of the encryption unit.

7. The urban rail train host device supporting optical communication as claimed in claim 6, characterized in that: The auxiliary module further comprises an alarm module, and the alarm module is used for sounding an alarm for abnormal status of the encryption unit.

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