Unmanned vehicle multi-sensor time synchronization system

• Main Authors: QU JUN, LI SHIXING, AN XIANGJING
• Format: Patent
• Language: Chinese; English
• Published: 08.11.2022
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION

The utility model belongs to the technical field of vehicle unmanned driving, and particularly relates to an unmanned vehicle multi-sensor time synchronization system, which comprises an FPGA chip, a satellite signal receiving module and at least two acquisition modules, and is characterized in that a clock simulation module used for generating simulation UTC signals and simulation 1PPS signals is arranged in the FPGA chip; the FPGA chip is connected with the at least two acquisition modules and is used for sending the analog UTC signal and the analog 1PPS signal to the at least two acquisition modules by the FPGA chip; and the FPGA chip is connected with the satellite signal receiving module and is used for calibrating the simulation UTC signal and the simulation 1PPS signal through the FPGA chip when the satellite signal receiving module receives a satellite signal. According to the utility model, microsecond-level time synchronization precision of a plurality of sensors is realized on the basis of the FPGA