Bidirectional communication system and method for use between avionics high-security network domain and avionics low-security network domain
A secure network and two-way communication technology, applied in the field of two-way communication systems, can solve problems such as network information security threats, aircraft operation safety impacts, and safety impacts, and achieve the effect of taking into account operational efficiency
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[0056] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0057] 1. System structure composition
[0058] The architecture composition of the two-way communication system of the present invention is as follows: figure 1 As shown, each functional module is set in the security domain boundary control device, including:
[0059] (1) Information network communication agent module 101: This module is located in the system application layer of the security domain border control device, completes the low security level application communication agent function in the information network, reads the rules from the information network communication control table 102, and controls the access security The message of the domain border control device is inspected and controlled; when sending, the message passing the inspection is sent to the avionics network sending control module 103; when receiving, the message from the avionics networ...
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