Research And Design Of 1553B Bus Remote Terminal Plug-and-Play

In recent years,with the gradually and widely application of modern electronic technology,communication technology,computer technology,automation technology,artificial intelligence in the field of aerospace;the micro-satellite’s integrate electronic system develops towards the direction of high modularity,high integration,high level of intelligent control,high processing capacity,high reliability.Plug-and-Play technology plays an important role in the realization of modularization of integrate electronic system.The common data bus(MIL-STD-1553B)of integrate electronic system is studied in this thesis.The 1553 B Bus Plug-and-Play Remote Terminal is developed.Space Plug-and-Play Avionics(SPA)standard is a relatively mature micro-satellite’s integrate electronic system plug-and-play standard.Appliqué Sensor Interface Modules(ASIM)and e Xtensible Transducer Electronic Data Sheet(x TEDS)are studied in this thesis.The idea of achieving 1553 B bus plug-and-play remote terminal by using ASIM and x TEDS is established.1553B bus protocol and remote terminal are analyzed in detail in this thesis,as a result,it is clearly that remote terminal is a kind of device which executes bus protocol and its hardware structure and logic function is basically fixed.On this basis,1553 B simple terminal and telemetry and telecommand interface in the Loongson 1F chip are deeply studied,as a result,the specific process of initialization setting and set up results reading towards telemetry and telecommand interface which launched by 1553 B simple terminal is clarified.Combining ASIM and x TEDS of SPA standard,an ASIM interface is added to Loongson 1F chip.After 1553 B bus system obtaining power,ASIM interface can autonomously initialize telemetry and telecommand interface,read set up results and generate application EDS package.1553 B simple terminal exchange data information with ASIM interface and read EDS package then transmit it to BC.ASIM interface and 1553 B simple terminal combine to a plug-and-play remote terminal.The x TEDS document structure diagram of 1553 B remote terminal is presented in this thesis.On this basis,telemetry and telecommand interface’s x TEDS and application EDS are designed,then subaddress definition’s x TEDS is designed according to 1553 B communication layer EDS format.ASIM interface logic structure diagram is designed,on this basis,x TEDS data reading module,ASIM state machine module,AXI bus writing transmission module,AXI bus reading transmission module and EDS package generating module are designed.Plug and Play Remote Terminal Simulation Platform is built in this thesis.First of all,remote terminal is simulated,including receive 1553 B message,the configuration of device interface control register,reading control register of device interface,transmit 1553 B message.The simulation results illustrate that remote terminal’s encode module,decode module,RT protocol state machine,AXI bus write module,AXI bus read module can work rightly.ASIM interface is simulated in this thesis: ASIM interface can write x TEDS data in the EEPROM to control register of each device interface and read control register to generate EDS package.It can also write EDS package to remote terminal transmit subaddress data area.It achieves the design goal.