The invention relates to the field of
safety monitoring, and discloses an external hanging
type safety monitoring system for existing
engineering machinery, which improves the safety and operation efficiency of equipment through the technical means of data fusion, dynamic safety threshold calculation, a hierarchical response mechanism,
data integrity verification and the like. Through hardware
clock synchronization and unified coordinate
system establishment, alignment of data of the
encoder, the tilt angle sensor and the
laser ranging module is realized. The telescopic length, the operation height and the
radius of the big arm are calculated in real time, and the parameter reliability is ensured through theoretical model
verification; generating a dynamic security threshold set by adopting a threshold management mechanism of fusion of a local dynamic stability
boundary model and a cloud environment compensation coefficient; and when the operation parameters exceed the limit, triggering hierarchical
response control, and uploading the fault data snapshot to the cloud platform. According to the method, through multi-level collaborative optimization, the precision, adaptability and safety of
engineering machinery operation monitoring are remarkably improved, and the method is suitable for safety protection requirements under complex working conditions.