| It requires transferring a great deal information between systems in present-day warplane and civil aviation. Along with digital technology and microcomputer appearing, more and more aerial electronic equipments have adopted digital technology. It makes digital transfer becoming primary approach of information transfer. Not only it overcomes analog transfer bringing high cost, many transmission lines, and bad reliability and so on, but also it lightens weight of airplane and equipment and improves precision of information transfer. For the sake of unifying aerial electronic equipments'technology index, electrical apparatus capability, exterior and connector, American aerial electronic equipment manufacturer, airline companies, airplane and other countries'airline companies join up with founding aerial wireless company, its shortened form is ARINC. This company instituting a series of uniform industry standard and specification is called ARINC specification. Along with science technology continuously developing and progressing, function opposite independent aerial electronic system takes to integration step by step. For example, joining up with radar, inertial navigation, GPS and embedded computer can constitute new navigation system. Digital communication becomes especially important between each subsystem. Now, in the aviation electronic system the bus of the most in common use communication is ARINC429 and 1553 B. And the ARINC429 is widely used in the Boeing series airplane, European Airbus etc. The ARINC429 is also the bus of main communication in our country's navigation system. The ARINC429 Digital Information Transmission Specification constitutes industry standard of the aviation conveyance for transporting digital information in the aviation electronic equipments. It should be based on lucubrating ARINC429 Digital Information... |
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