330
9 OBDH Technology of Lunar Lander
Fig. 9.8 OBDH subsystem simulation and test environment
design of anti-interference under modular combination was the focus of test and
verification.
During final design phase, electrical models and qualification models were manufactured. Through electrical performance test and software/hardware matching test of
devices, subsystem test, and joint test with other subsystems (especially the mechanism subsystem, antenna subsystem and payload subsystem), as well as electric
test, EMC test, onboard-ground interface test, EMC test with launch vehicle, and all
qualification environmental tests of the lunar lander, the design of reliability and new
function of the OBDH subsystem under high integration were fully verified.
During phase D, the tests of the OBDH subsystem devices were the acceptance
level test, and the environmental test was no longer the focus of device test, while there
was no special test. In electrical performance test and software/hardware matching
test of the devices, subsystem test, and joint test with other subsystems, all tests and
interface tests with ground station of the lunar lander, especially the joint test with the
mechanism subsystem and the antenna subsystem, the tests under real flight modes
and motors with load were conducted to fully verify the design.
Because of the criticality and complexity of the OBDH software, besides normal
software test, the special ground rigorous test was designed and conducted before
launch. The key of the rigorous test was to test the performance of the software
9 OBDH Technology of Lunar Lander
Fig. 9.8 OBDH subsystem simulation and test environment
design of anti-interference under modular combination was the focus of test and
verification.
During final design phase, electrical models and qualification models were manufactured. Through electrical performance test and software/hardware matching test of
devices, subsystem test, and joint test with other subsystems (especially the mechanism subsystem, antenna subsystem and payload subsystem), as well as electric
test, EMC test, onboard-ground interface test, EMC test with launch vehicle, and all
qualification environmental tests of the lunar lander, the design of reliability and new
function of the OBDH subsystem under high integration were fully verified.
During phase D, the tests of the OBDH subsystem devices were the acceptance
level test, and the environmental test was no longer the focus of device test, while there
was no special test. In electrical performance test and software/hardware matching
test of the devices, subsystem test, and joint test with other subsystems, all tests and
interface tests with ground station of the lunar lander, especially the joint test with the
mechanism subsystem and the antenna subsystem, the tests under real flight modes
and motors with load were conducted to fully verify the design.
Because of the criticality and complexity of the OBDH software, besides normal
software test, the special ground rigorous test was designed and conducted before
launch. The key of the rigorous test was to test the performance of the software