Redundancy diagnosis circuit unit for communication interface equipment

• Main Authors: GUO HONGLI, HAN ANPING, JI ZHE, FU RENJIE, WANG LONGSHENG, GANG JIANLEI, GUO LIANG, WANG TUO, LIANG ZHIGUO, ZHENG CHANGZONG, CHEN QIANJIA, BAI SHUAI, GUAN WEIJUN, LIU YIMING, REN FEI, WU YUAN, YU JIANJIE, ZHAO MENGYAO, XIN WEI
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• Subjects: ENSURING THE SAFETY OF RAILWAY TRAFFIC; GUIDING RAILWAY TRAFFIC; PERFORMING OPERATIONS; RAILWAYS; TRANSPORTING

The invention discloses a redundancy diagnosis circuit unit for communication interface equipment, and belongs to the technical field of train control. The redundancy diagnosis circuit unit comprises a communication unit A diagnosis circuit and a communication unit B diagnosis circuit; the communication unit A diagnosis circuit and the communication unit B diagnosis circuit have the same structure and comprise a self-diagnosis circuit and a redundancy detection circuit; the self-diagnosis circuit comprises a fault logic judgment circuit and a phase discrimination safety door driving circuit; the fault logic judgment circuit comprises an OR gate 1 logic circuit and an OR gate 2 logic circuit; the phase discrimination safety gate drive circuit comprises a phase discrimination safety gate circuit, a relay drive circuit and a fault detection relay J1; the redundancy detection circuit is of a fault detection relay J1 switch contact state detection circuit structure. The communication unit A and the communication u