Autonomous fault diagnosis and autonomous recovery method for space 1553B chip

• Main Authors: ZHANG TAO, LIU TONG, DING JIANZHAO, HUANG TANGANG, YANG XIAOLONG, CHEN CHAO, WU RINA, CHENG LI
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

The invention relates to an autonomous fault diagnosis and autonomous recovery method for a space 1553B chip, and belongs to the field of fault diagnosis and handling of a space controller. 0 * 55 data is written into each address of the detected area; reading the content of each address from the low address in sequence, and judging whether the RAM area of each address is normal or not; 0xAA data are written into the normal address; reading the content of each address from the high address in sequence, and judging whether the RAM area of each address is normal or not; 0 * 55 data is written into a normal address; reading the content of each address from the high address in sequence, and judging whether the RAM area of each address is normal or not; mapping and switching the RAM area address corresponding to each abnormal address to a backup RAM area address with a normal self-check state; according to the method, the storage area corresponding to the important sub-address is automatically detected, and if abn