In early period, robots and equipment call electronics. Is used in a variety of industries to benefit in reducing production cost per unit gave the most thermodynamic and raise product quality to a higher level.Due to the nature of the work. Or area to work is complex, hard to practice or have high risk to humanity and human and robot industry in general can not work.In the survey, such as survey, marine surveying work space, rescue work, such as "the collapse" incident fire worse. Or even the use of robots in the nuclear power plant.S-Curve such as snakes, etc.