Onboard novel comprehensive data loading and transmitting device

Abstract

The invention discloses an onboard novel comprehensive data loading and transmitting device which comprises an SRU1. The SRU1 comprises a main processor module, an AFDX terminal module and a solid storage card. The main processor module achieves data management, data communication, interface management and instruction reception and transmission of the whole device. The AFDX terminal module receives and transmits terminal data through an AFDX interface and carries out data communication with a CPU through a PCI bus. The solid storage card is a pluggable CFast solid storage card of an SATA2.0 interface and is connected with the CPU through an SATA bus and used for performing the function of data loading and recording. Due to the fact that he AFDX interface replaces a special communication link of an original data transmission device, the SATA interface replaces an IDE interface applied to the original data transmission device, and high-speed serial buses such as the PCI-Express are used, signal line laying complexity is greatly reduced and reliability and maintainability of an avionics system are improved. The CFast card is used, so that the weight of the storage card is greatly reduced, the reading and writing speed is improved to 130Mbps from 12Mbps.

Description

technical field [0001] The invention relates to avionics network technology, in particular to an airborne data loading and transmission device. Background technique [0002] The data loading transmission device (DTD) is an important part of the avionics system, mainly used for loading and unloading of flight mission data, storage of digital map data, and storage of other flight-related data. figure 1 A schematic diagram of the original airborne data loading and transmission device is given. The original DTD device is generally composed of a data transmission card (DTC) and a DTD case. The DTC card is an independent box structure installed in the DTD case. Point-to-point The Ethernet is used to load the map data, the serial interface conforming to the EIA RS422 standard is used to load the mission planning data, and the IDE interface is used to transmit data with the ground station. This point-to-point dedicated communication interface definition reduces software reusability...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects existing in the prior art, the object of the invention of the present invention is to provide a new type of airborne comprehensive data loading and transmission device, which can reduce the types of dedicated communication links, reduce the weight of discrete cables, increase the bandwidth of information channels, and reduce the wiring of signal lines. Complexity, reduce the wiring area of ​​the printed circuit board, increase the storage capacity of the memory card, improve the integration, reduce the pressure on the bus of the avionics system, and solve the problem of single function of the existing device

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