CN216451378U

CN216451378U - Optical fiber bus changes wireless device

Info

Publication number: CN216451378U
Application number: CN202122927416.6U
Authority: CN
Inventors: 赵志伟; 孙万禄
Original assignee: Shenyang Aircraft Design and Research Institute Aviation Industry of China AVIC
Current assignee: Shenyang Aircraft Design and Research Institute Aviation Industry of China AVIC
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-05-06
Anticipated expiration: 2031-11-24

Abstract

The invention belongs to the technical field of aviation, and relates to an optical fiber bus-to-wireless device, which comprises a processor card, an FC node card, a bottom plate, a wireless network card and an SFP optical module, wherein the processor card is connected with the FC node card through the bottom plate; the processor card is connected with the wireless network card and the FC node card through a bottom plate; the wireless network card is in wireless communication with an upper computer; the FC node card is connected with the SFP optical module, and the SFP optical module is connected with each communication component of the airplane, so that the problem of wireless communication between the airplane and a bottom surface upper computer is solved, the communication efficiency is improved, and the trouble of wired connection is avoided.

Description

Optical fiber bus changes wireless device

Technical Field

The application belongs to the technical field of aviation, and relates to a fiber bus changes wireless device.

Background

The data interaction between the original airborne system and the ground upper computer equipment is carried out through hard wires. In the actual operation process, a special cable is needed to be used for connecting the ground support equipment with the airborne support interface. The method needs professional personnel to operate, is complex in onboard operation, low in efficiency, high in maintenance cost and not universal.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the present application provides an optical fiber bus-to-wireless device, including a processor card, an FC node card, a backplane, a wireless network card, and an SFP optical module;

the processor card is connected with the wireless network card and the FC node card through a bottom plate; the wireless network card is in wireless communication with an upper computer; the FC node card is connected with the SFP optical module, and the SFP optical module is connected with each communication component of the airplane and externally powered by DC 28V.

Preferably, the backplane comprises connectors and a bus, the connectors comprise a first connector and a second connector, the FC node card is connected with the first connector through the bus, the first connector is connected with the second connector through the bus, and the second connector is connected with the processor card through the bus.

Preferably, the bus comprises a PCI-E bus.

Preferably, the SFP optical module is connected to the FC node card through the first connector;

preferably, the wireless network card is connected to the second connector through a USB connector.

Preferably, the bus between the second connector and the processor card further comprises a USB bus and a UART bus.

Preferably, the first connector type comprises an SOLC connector.

Preferably, the second connector model comprises a COMe connector.

Preferably, the SFP optical module is mounted on the chassis.

The specific working principle is as follows: an ARM processor is used as a core chip, a Linux operating system is operated, and a built-in wireless network card can be in WIFI communication with an upper computer. An FC node card is arranged in the FC wireless network card, and external FC network interface communication can be realized; the onboard data is converted into an electrical signal through the photoelectric conversion module, the electrical signal writes the data into a DMA memory of an ARM processor chip through a PCI-E bus after passing through the logic of the FC node card, the upper computer obtains the data from the DMA memory through the driving software of the optical fiber contact card and puts the data into the ARM operating memory, and the data is sent out in a wireless mode through the FC wireless network card.

The advantages of the present application include: the problems that the communication operation between the airplane and the ground is complex, the efficiency is low, the maintenance cost is high, the universality is not high and the like are solved; meanwhile, the communication efficiency between the airplane and the ground is improved in a wireless connection mode, and the maintenance cost is reduced; the universality of the airborne interface is improved, and the reliability and the guarantee of data interaction are improved.

Drawings

FIG. 1 is a block diagram of a preferred embodiment of the present application, converting a fiber bus to a wireless device;

FIG. 2 is a backplane hardware schematic block diagram;

FIG. 3 is a diagram of a FC node card architecture;

FIG. 4 is a processor card functional block diagram;

FIG. 5 is a schematic diagram of the left side of the appearance of a fiber-optic bus-to-wireless device;

FIG. 6 is a FC node card 3D view;

FIG. 7 is a processor card external interface diagram.

Detailed Description

In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all embodiments of the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application, and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Embodiments of the present application will be described in detail below with reference to the drawings.

An optical fiber bus to wireless device has outer dimensions of no more than 200mm 120mm 50 mm. An external interface of an optical fiber bus-to-wireless device is positioned on the left side and the right side of a module, and a structural block diagram convenient for a user to operate is shown in fig. 1. A left interface for converting an optical fiber bus into a wireless device comprises an SFP optical port, a gigabit network port and a serial port, as shown in figure 5, the right interface for converting the optical fiber bus into the wireless device mainly comprises a DC28V power supply port and a work indicator light, and the power supply port is accessed through an aviation plug. The overall dimension of FC node card is: 70.00mm x 55.00mm, the external dimensions are shown in FIG. 6.

The backplane is mainly responsible for signal interconnection and interface leading-out among the sub-modules, and a schematic block diagram thereof is shown in fig. 2.

Processor card schematic block diagram as shown in fig. 4, the processor card is powered by a single 12V power supply and has dimensions of 84mm x 55 mm. The processor card runs a Linux operating system, is interconnected with the wireless network card through the USB interface, and is interconnected with the FC node card through the PCIe interface. The external interface resources of the processor card are shown in the table 7; it adopts the model as

The processor of LS1043A is the first quad 64-core network-oriented push-out by Enzhipu

A processor. LS1043A may provide performance in excess of 10Gbps with flexible I/O packages that support fanless designs. It uses a single clock design that can provide additional power savings for wireless LAN and power over ethernet systems. And a 23x23 packaging mode is adopted to support a pin compatible design.

Fig. 3 is a schematic hardware block diagram of the FC contact card of fig. 2, wherein the TOLC and SOLC connectors are mating connectors, and the entire signal input/output transmission is performed between the mating connectors for signal input and output. The functions of the modules are as follows:

(1) JTAG connector: a logic loading file for burning and debugging the FPGA;

(2) SPI FLASH FPGA for loading: the FPGA logic loading file is stored;

(3) the SPI FLASH data storage is used: the configuration file is used for storing the FPGA;

(4) resetting the chip: the FPGA chip is reset;

(5) a TOLC connector: electric appliance interface for direct communication with mainboard

(6) A power conversion chip: used for providing 1.0V, 1.2V, 1.8V and 3.3V voltage for each chip;

(7) crystal oscillator: 212.5M, 100M and 66M provide respective clock signals for the respective modules.

The method is mainly used for realizing external FC data communication of the equipment. In the sending direction, the FC node card receives a message sent by the airborne application through the PCIe bus and converts data into an optical signal through the FC bus to be excited out; in the receive direction, the FC node card receives data over the FC bus and transmits to the onboard application over the PCIe bus.

The FC node card takes the FPGA as a main processing chip, and the peripheral circuit mainly comprises an inter-board connector, a power supply conversion circuit, a clock circuit, a memory circuit and the like

The main functional performance indexes of the FC node card are as follows: the protocol requirements of FC-PI, FC-FS and FC-AE-ASM are met; support dual-redundancy FC electrical interfaces; the standard PClex4(Revl.1) interface is adopted to be crosslinked with a host, and the PCIe x2 interface is compatible; support point-to-point and switched topologies; supporting 3-type FC fibre channel service; full duplex communication is supported, and independent FC channels are adopted for receiving and transmitting: the flow control agent B2B is adopted to support 8 credits at most; the SYNx/SYNy/SYNz clock synchronization function is supported; two registers of a local RTC and a calendar time are supported; priority control of message transmission is supported. The sequence is as follows: emergency (block) → event (block) → ELS → data stream; the method supports self-detection, including BIT functions such as self-loop test and memory test; and online FPGA logic updating is supported. The single-port communication rate is 2.125Gbps, the full-duplex communication is realized, and the bit error rate is less than or equal to 10-12; the single port communication rate can be configured to 1.0625Gbps or 2.125 Gbps; user data transport supporting a single IU of up to 16 MB: 256 FC-AF-ASM data block or stream data block message receiving and sending are supported;

the above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. The device for converting the optical fiber bus into the wireless device is characterized by comprising a processor card, an FC node card, a bottom plate, a wireless network card and an SFP optical module;

the processor card is connected with the wireless network card and the FC node card through a bottom plate; the wireless network card is in wireless communication with an upper computer; the FC node card is connected with the SFP optical module, and the SFP optical module is connected with each communication component of the airplane.

2. The fiber bus-to-wireless device of claim 1, wherein the backplane comprises connectors and a bus, the connectors comprising a first connector and a second connector, the FC node card connected to the first connector by the bus, the first connector connected to the second connector by the bus, the second connector connected to the processor card by the bus.

3. The fiber optic bus-to-wireless device of claim 1, wherein the bus comprises a PCI-E bus.

4. The fiber bus-to-wireless device of claim 2, wherein an SFP optical module is connected to the FC node card through the first connector.

5. The fiber bus-to-wireless device of claim 2, wherein a wireless network card is connected to the second connector via a USB connector.

6. The fiber bus-to-wireless device of claim 3, wherein the bus between the second connector and the processor card further comprises a USB bus, a UART bus.

7. The fiber bus-to-wireless device of claim 2, wherein the first connector type comprises an SOLC connector.

8. The fiber bus-to-wireless device of claim 2, wherein the second connector model comprises a COMe connector.

9. The fiber bus-to-wireless device of claim 1, wherein the SFP optical module is mounted on the backplane.