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RapidIO bus-based protective recorder

A recorder and bus technology, applied in the field of avionics, can solve the problems of inability to meet the recording capacity and download speed, and achieve the effect of increasing the recording rate, meeting the requirements of big data recording, and increasing the capacity.

Inactive Publication Date: 2018-02-16
SHAANXI QIANSHAN AVIONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardware architecture of the existing protective recorder cannot meet the needs of the existing recording capacity and download speed

Method used

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  • RapidIO bus-based protective recorder
  • RapidIO bus-based protective recorder
  • RapidIO bus-based protective recorder

Examples

Experimental program
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Embodiment Construction

[0015] The protection recorder based on the RapidIO bus of the present invention is a protection recorder with the RapidIO bus. like figure 1 As shown, the RapidIO bus is used between the data management board and the storage unit; the hardware design architecture of the data management board uses a RapidIO switch to realize the interconnection between CPU, FPGA and storage unit. Among them, the protective recorder includes 1 power board, 2 FC daughter cards, 1 data management board and 1 data storage unit. The input power of the protective integrated recorder is DC28V, and the DC5V generated by the power board is respectively supplied to the data management board, the data storage unit, and 2 FC sub-cards; the data management board outputs DC5V for the data storage unit.

[0016] Data management board: The data management board is mainly composed of CPU processor, FPGA programmable logic, high-speed bus interface and power supply. The system block diagram is as above figur...

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Abstract

The invention belongs to the field of avionics and specifically relates to a RapidIO bus-based protective recorder. Under promotion of new aerotechnics, complexity of aviation record equipment is greatly increased, thus sharply increasing flight data size. Present protective recorder hardware architecture cannot meet present recording capacity and downloading speed requirements. The RapidIO bus-based protective recorder comprises a power strip, an FC daughter card, a data management board and a data storage unit, wherein the data management board comprises a CPU processor, FPGA programmable logic and high-speed bus interface; the data storage unit adopts FPGA and plugged-in 8-channel NAND FLASH array scheme; and the data storage unit and the data management board are connected through theRapidIO bus. According to the invention, capacity of the storage unit is greatly increased, recording rate of flight data is effectively raised, and the requirement on big data record in the avionicsfield is met.

Description

technical field [0001] The invention belongs to the technical field of avionics, and in particular relates to a protection recorder based on a RapidIO bus. Background technique [0002] In 2001, the RapidIO Business Alliance proposed the RapidIO protocol for multi-processor interconnection. RapidIO protocol is a point-to-point packet switching protocol, which has a three-layer structure of physical layer, transport layer and logical layer. The logical layer defines all packet formats for the transactions of RapidIO nodes; the transport layer provides routing and addressing functions for RapidIO data packets; the physical layer provides the electrical characteristics of the device interface. In addition, the protocol also provides flow control, error control functions. For long-distance transmission and backplane transmission with fewer connections, because the RapidIO physical layer adopts LVDS transmission and high-speed serial transceiver technology, it supports up to 10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C5/08
CPCG07C5/085
Inventor 温金涛栾璟明张宁博
Owner SHAANXI QIANSHAN AVIONICS
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