Anti-collision alarm system and boom crane adopting same

The utility model relates to the technical field of crane equipment, in particular to an anti-collision alarm system and a luffing jib crane adopting the same, the output end of a pitch angle sensor is connected to a host controller, the output end of an angle encoder is connected to the host controller, a communicator is electrically connected with the host controller, and the communicator is electrically connected with the luffing jib crane. The alarm system is connected to the output end of the host controller, the cargo boom and the balance arm are symmetrically arranged on the two sides of the top of a crane rotation center, the cab is arranged on the crane rotation center, the pitch angle sensor is arranged on the cargo boom, and the angle encoder is arranged on the crane rotation center. The operation information of the cargo boom is obtained in time by arranging the pitch angle sensors and the angle encoders, and meanwhile the operation information is fed back to the host controller for data integrati