Air traffic control voice recognition method and system

The invention relates to an air traffic control voice recognition method and system, belongs to the technical field of data processing, and solves the problems that in the prior art, voice cannot be received in real time to obtain a control instruction, air traffic control call term errors cannot be detected, alarms and related auxiliary decision-making information cannot be provided, the workload of a controller is heavy, and the control risk is high. The method comprises the following steps: digitally sampling air traffic control voice, reading a digital signal in real time, monitoring the timeliness of the voice, if the voice is judged to be from a controller or a pilot and is not overtime, processing the voice to obtain semantic text data, then comparing the semantic text data with a pre-stored instruction text, and if the comparison is successful, obtaining an effective instruction; the control center sends the information to the master controller, and the master controller forwards the information to th