Crane lighting method and system

The invention discloses a crane lighting method and system in order to solve the technical problem that the crane provided by the related technology costs high as the crane is additionally provided with multiple infrared sensors. The crane lighting method includes the following steps: an information collector of a crane collects the current position information of an actuator of the crane in realtime; a PLC obtains the current position information and sends a control instruction to a lighting driver of the crane according to the current position information; and the lighting driver receives the control instruction and controls the magnitude of current of a lighting circuit of the crane according to the control instruction. 本发明公开了种起重机照明方法及系统，以解决相关技术提供的起重机由于增设多个红外感应器导致其成本高的技术问题。该起重机照明方法包括如下步骤：起重机的信息采集器实时采集起重机的执行机构的当前位置信息；PLC控制器获取当前位置信息并根据当前位置信息向起重机的照明驱动器发送控制指令；照明驱动器接收控制指令并根据控制指令控制起重机的照明回路的电流大小。