A suspension work platform hoist system for raising and lowering a work platform is provided. These may include gathering a plurality of data about each of the first and second locations; determining a load level associated with each of the first and second set of radio networks; determining a bandwidth allocation value; and reserving a plurality of channel slices from the first channel set among the first of radio networks. The pulse voltage signal transits from a first voltage to a second voltage during the time period when the lamp current is transited from a first lamp current to a second lamp current during a transition time. As a result of this determination, when the position of the moving body enters into a distance range for one of the stages, the position of this moving body is wirelessly reported to a control center 200. A curvature radius of the first surface is different from a curvature radius of the second surface. The liquid sterilant travels from the lumen to a vaporizer in the sterilizer.