Communication quality sensing system and method

The invention relates to a communication quality sensing system and method. The system comprises a Beidou time service unit, an RAM unit, an FPGA unit, an OCXO unit, a first uplink communication unit,a second uplink communication unit, a local communication unit, a CPU unit, a data storage unit and a man-machine interaction unit. According to the system, the time error of the terminal can be effectively eliminated, and the actual state of the network is reflected; the method comprises the following steps: S1, initializing system parameters; s2, performing Beidou satellite time synchronization; s3, detecting a system function; s4, obtaining Beidou time when the sending module starts to send data and data sending completion time, and the beidou time that the receiving module receives the data sent by the sending module and the time from data receiving to data confirmation of the receiving module; s5, calculating the data transmission delay; s6, evaluating the communication quality; themethod is high in network