Tandem multi-bus fault injection system

• Main Authors: ZHANG QI, SUN XU, YANG BOWEN, ZHANG BI, CHEN SHIQIN, HAO ZIWEI, WANG DAFANG, LI HAO
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• 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 discloses a serial multi-bus fault injection system which comprises a bus interface A, a user fault category setting module, a signal conditioning module, an A/D discrete sampling module, an FPGA multi-level fault injection module, a physical layer, a D/A conversion module, a signal selection output control module, a bus interface B, a communication bus and the like. According to the invention, fault simulation of an electrical layer, a data link layer and a protocol layer can be carried out on various types of buses, and specifically, fault operations such as delay output, noise interference, waveform modification and data replacement can be carried out. According to the system, a method that a human-computer interaction mode of software and hardware fault injection system facilities are mutually matched for implementation is used, a user sets a fault injection mode and parameters from the software of an operation interface, and a fault injection system on the hardware level implements fault pa