“…The installation of the SPS is difficult because of the complexity of the ocean environment and the heavy weight of the system. At present, the mainstream installation methods for the SPS include the traditional installation methods [1,2], the sheave installation method (SIM) [3][4][5][6][7], the pendulous installation method (PIM) [8][9][10], the pencil buoy method (PBM) [11,12], the heave compensated landing system (HCLS) [13] and the subsea deployment system (SDS) [14].…”