阅读说明：本技术 一种多通道光纤数据记录装置 (Multichannel optical fiber data recording device ) 是由 朱骏 于 2020-12-30 设计创作，主要内容包括：本发明提供一种多通道光纤数据记录装置,涉及数字信号采集与处理领域。该多通道光纤数据记录装置包括光电转换单元、交换单元和存储单元,所述光电转换单元包括光模块,所述交换单元包括SRIO交换单元、CPU、以太网交换芯片以及第二FPGA,所述CPU用于对SRIO交换芯片进行控制,所述SRIO交换单元用于光纤数据的接受和转发,所述存储单元包括第一FPGA。该多通道光纤数据记录装置的具有带宽高、体积小、便携性强、部署灵活,以解决上述现有技术中接口少且固定、应用场合受限的问题。(The invention provides a multichannel optical fiber data recording device, and relates to the field of digital signal acquisition and processing. The multichannel optical fiber data recording device comprises a photoelectric conversion unit, an exchange unit and a storage unit, wherein the photoelectric conversion unit comprises an optical module, the exchange unit comprises an SRIO exchange unit, a CPU, an Ethernet exchange chip and a second FPGA, the CPU is used for controlling the SRIO exchange chip, the SRIO exchange unit is used for receiving and forwarding optical fiber data, and the storage unit comprises a first FPGA. The multichannel optical fiber data recording device has the advantages of high bandwidth, small volume, strong portability and flexible deployment, and solves the problems of few and fixed interfaces and limited application occasions in the prior art.)

1. A multi-channel optical fiber data recording device is characterized by comprising a photoelectric conversion unit, a switching unit and a storage unit;

the photoelectric conversion unit comprises an optical module;

the switching unit comprises an SRIO switching unit, a CPU, an Ethernet switching chip and a second FPGA, wherein the CPU is used for controlling the SRIO switching chip, and the SRIO switching unit is used for receiving and forwarding optical fiber data;

the storage unit comprises a first FPGA.

2. A multi-channel fiber optic data recording device according to claim 1 wherein: the first FPGA is set to be Zynq MPSoC, and the first FPGA is connected with the M.2SSD through PCIe SWITCH.

3. A multi-channel fiber optic data recording device according to claim 1 wherein: the number of the SRIO switching units is multiple, and the multiple SRIO switching units and the second FPGA are mounted through an I2C bus.

4. A multi-channel fiber optic data recording device according to claim 1 wherein: and the optical module and the first FPGA are connected with the SRIO switching chip through a back plate.

5. A multi-channel fiber optic data recording device according to claim 1 wherein: the second FPGA is in communication connection with the CPU through PCIe, and the CPU controls the storage unit and accesses the file system through the Ethernet.

Technical Field

The invention relates to the technical field of digital signal acquisition and processing, in particular to a multichannel optical fiber data recording device.

Background

With the progress of scientific technology and the development of national defense industry, technologies such as radar, optics, information processing and the like are fused with each other in the field of national defense science and technology, a system often has a plurality of large-bandwidth data sources to be stored simultaneously, even if a plurality of recording devices are adopted to meet the bandwidth requirement, the device is large in size and high in cost, and the miniaturization requirement of airborne equipment is difficult to meet.

Disclosure of Invention

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides a multi-channel fiber optic data recording device to solve the problems set forth in the background art.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a multi-channel optical fiber data recording device comprises a photoelectric conversion unit, an exchange unit and a storage unit;

the photoelectric conversion unit comprises an optical module;

the switching unit comprises an SRIO switching unit, a CPU, an Ethernet switching chip and a second FPGA, wherein the CPU is used for controlling the SRIO switching chip, and the SRIO switching unit is used for receiving and forwarding optical fiber data;

the storage unit comprises a first FPGA.

Preferably, the first FPGA is set as Zynq MPSoC, and the first FPGA is connected with the m.2ssd through PCIe SWITCH.

Preferably, the number of the SRIO switching units is multiple, and the multiple SRIO switching units and the second FPGA are mounted through an I2C bus.

Preferably, the optical module and the first FPGA are both connected to the SRIO switch chip through a backplane.

Preferably, the second FPGA is in communication connection with the CPU through PCIe, and the CPU performs control and file system access to the storage unit through ethernet.

The invention provides a multichannel optical fiber data recording device, which has the following beneficial effects:

the multichannel optical fiber data recording device is high in bandwidth, small in size, strong in portability and flexible in deployment, and solves the problems that in the prior art, the number of interfaces is small, the interfaces are fixed, and application occasions are limited.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

The embodiment of the invention provides a multichannel optical fiber data recording device, which comprises a photoelectric conversion unit, an exchange unit and a storage unit, wherein the photoelectric conversion unit is connected with the exchange unit;

the photoelectric conversion unit comprises an optical module;

the switching unit comprises an SRIO switching unit, a CPU, an Ethernet switching chip and a second FPGA, wherein the CPU is used for controlling the SRIO switching chip, and the SRIO switching unit is used for receiving and forwarding optical fiber data;

the storage unit comprises a first FPGA.

The first FPGA is set to be Zynq MPSoC, and the first FPGA is connected with the M.2SSD through PCIe SWITCH.

The number of the SRIO switching units is multiple, and the multiple SRIO switching units and the second FPGA are mounted through an I2C bus.

And the optical module and the first FPGA are connected with the SRIO switching chip through a back plate.

The second FPGA is in communication connection with the CPU through PCIe, and the CPU controls the storage unit and accesses the file system through the Ethernet.

The implementation mode is specifically as follows:

the working principle is as follows: the recording device is mainly composed of a photoelectric conversion unit, an exchange unit and a storage unit, the recording device is communicated with external equipment through optical fibers by an SRIO (serial Rapid IO) protocol, an optical module of the photoelectric conversion unit and an FPGA (field programmable Gate array) of the storage unit are connected to an SRIO exchange chip of the exchange unit through a back plate, and the SRIO exchange chip finishes receiving and forwarding optical fiber data.

The FPGA of the storage unit and the CPU of the exchange unit are connected to the Ethernet exchange chip of the exchange unit, and the CPU controls the storage unit and accesses the file system through the Ethernet.

The switching unit is provided with a plurality of SRIO switching chips, the SRIO switching chips are all mounted to the FPGA of the switching unit through an I2C bus, the FPGA communicates with the CPU through PCIe, finally the control of the SRIO switching chips by the CPU is achieved, and the functions of obtaining the optical fiber connection state in real time, modifying the port rate and the like can be achieved.

The FPGA of the storage unit is a Zynq MPSoC, is connected with the M.2SSD through PCIe SWITCH, realizes the read-write of the hard disk, and supports a file system and a Server Messages Block (SMB) protocol.

After the multi-path optical fiber data are sent to the SRIO switching chip, the SRIO switching chip forwards the data to the storage unit; after receiving the SRIO data packet, the storage unit resolves information such as an ID number and an address in the packet header, distinguishes channel numbers, stores data in a corresponding file of the SSD, and finally realizes simultaneous storage of multi-channel data.

The CPU and the external equipment of the switching unit can access the storage unit through the Ethernet and send commands of starting acquisition, stopping acquisition, replaying, deleting, formatting and the like to the storage unit; and functions of sharing, importing, exporting and the like of data are realized through an SMB protocol.

The function ensures that the invention has high bandwidth, small volume, strong portability and flexible deployment, and solves the problems of few and fixed interfaces and limited application occasions in the prior art.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.