Method and device for early warning of wind speed during operation of port gantry crane

The invention provides a method and device for early warning of wind speed during operation of a port gantry crane. The device comprises a wind speed indicator, a wind indicator, an electronic compass, an audible and visual alarm, a programmable control module, a 4G data transmission module and an informatization system. The output end of the wind speed indicator and the output end of the wind indicator are connected with the input end of the programmable control module through a first line; the output end of the electronic compass is connected with the input end of the programmable control module through a second line, the input end of the audible and visual alarm is connected with the output end of the programmable control module through a third line, and the input end of the informatization module is connected with the output end of the programmable control module through the 4G data transmission module, so that wind speed and wind direction data and alarm signals are received. The method and device for ea