A WARNING METHOD AND SAFETY DEVICE FOR THE TOWER CRANE

摘要

An alarming method and a safety device for risks of a tower crane are provided to safely lift up and down an object which is out of sight of an operator by allowing the operator to drive the tower crane watching a CCTV. An alarming method for risks of a tower crane includes the steps of: inputting basic data on a thrust structure of the tower crane(S-100); detecting an electrical analog signal for displacement generated by wind and dead load of a main jib with a measurement device which takes data on the risks of the tower crane(S-200); converting the electrical analog signal to a digital signal(S-300); determining safety of the thrust structure by performing analysis of the taken data and reference data(S-400); storing a result of the analysis on a server installed on the operation room and shows the result on a display device(S-500); and alarming risks of the tower crane if the taken data is not satisfied with the reference data(S-600).