import krpc


conn = krpc.connect(name='Hover Guidance V5')
if not conn.space_center:
    print("No active vessel found.")
    exit()
vessel = conn.space_center.active_vessel

flight = vessel.flight(vessel.surface_reference_frame)
v_surf = vessel.velocity(vessel.orbital_reference_frame)
print(f"地表相对速度：上升 {v_surf[0]:.2f} m/s，北向 {v_surf[1]:.2f} m/s，东向 {v_surf[2]:.2f} m/s")