Spacecraft 1553B and RS422 two-way transmission protocol conversion method and device

• Main Authors: WANG SHAOLIN, KUAI WENLIN, XIE JIAHUA, ZHOU JUN, WANG CHI, YAN JUNJING, GUO YANLI, WU KANKAN
• Format: Patent
• Language: Chinese; English
• Published: 05.12.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention provides a spacecraft 1553B and RS422 two-way transmission protocol conversion universal method and device, the device comprises a protocol control FPGA circuit, an RS422 transmitting circuit, an RS422 receiving circuit, a 1553B interface circuit and an application processor circuit, RS422, 1553B and SPI data receiving and transmitting adopt a spatial data packet format, and RS422, 1553B and SPI interface output and protocol control FPGA are respectively configured with an application process identifier and a telemetering and remote control identifier. And free addressing of input and output of the spatial data packet is realized according to the matching between the application process identifier and the packet type in the packet dominant header of the RS422, 1553B and SPI input spatial data packet and the application process identifier and the telemetering and remote control identifier configured by the output interface. According to the invention, two-way data transmission among RS422, 1553B