1 results about "Pickup" patented technology

The invention relates to an unattended ship sailing early warning device, method, system and terminal, and the method comprises the following steps: S1, judging whether a server transmits data or not,if yes, executing a step S3, and if not, working according to a preset instruction, modulating a radio station into a frequency band used by a corresponding water area, and executing the step S2; s2,playing the audio file stored in the sound pickup; s3, the black box receives the data issued by the server, analyzes the configuration data and returns to the step S2. When the server issues data, the server sends the data; the black box receives data issued by the server; analyzing the configuration data and playing the audio file stored in the sound pickup; and if not, the radio station worksaccording to a preset instruction, modulates the radio station into a frequency band used by a corresponding water area, and plays the audio file stored in the sound pickup, so that the radio stationcan broadcast the passing ships under the unmanned condition, the manpower is greatly saved, and the safety performance is improved.