Safety protection system and method for engineering machinery

Abstract

A safety protection system (100) for engineering machinery, relating to the technical field of engineering machinery. Said system comprises: multiple groups of sensors (101), a controller (102), a control valve (103), a hydraulic safety valve (104), and an operating mechanism (105); the control valve (103), the hydraulic safety valve (104), and the operating mechanism (105) are sequentially connected by means of fluid paths; the controller (102) is electrically connected to a pilot electromagnetic valve (106) in the hydraulic safety valve (104), to detect whether the pilot electromagnetic valve (106) is power on; the multiple groups of sensors (101) are respectively provided at different positions in an operating chamber of engineering machinery; the controller (102) is electrically connected to the multiple groups of sensors (101), to acquire multiple groups of operating data from the multiple groups of sensors (101) when detecting that the pilot electromagnetic valve (106) is power on; and the controller (102) is further electrically connected to the control valve (103) to determine, according to the multiple groups of operating data, whether a safe operation condition is met, and if not, to shut off the control valve (103), so as to prevent hydraulic fluid from being supplied to the operating mechanism (105). The safety protection system (100) for engineering machinery can detect the operating state of a driver, achieving safety protection for engineering machinery in a working state, and improving the safety of engineering machinery. The present invention also relates to a safety protection method for engineering machinery.

Dependencies are inferred from the claim text.