Lifting height stopper is a necessary safety device of crane,damage to the crane itself and safety accidents can be effectively prevented through it,when the lifting of heavy objects over the limit.In this paper,a detection method of double height limit is proposed,aiming at the crane installed with double height limit device.Wireless LoRa transmission technology and wide voltage detection technology are combined by this method,the validity verification of crane double height limit device is realized in the safe distance range.Through the actual verification,the crane toppling accident occurred in the inspection process can be avoided by the method.
NETL
NSTL
维普
万方数据
