  Front-following is more technically difficult to implement than the other two
human following technologies, but front-following technology is more practical
and can be applied in more areas to solve more practical problems. The design
of sensors structure is an important part of robot detection system. In this
paper, we will discuss basic and significant principles and general design idea
of sensor system design of robot detction system. Besides, various of novel and
special useful methods will be presented and provided. We use enough beautiful
figures to display our novel design idea. Our research result is open source in
2018, and this paper is just to expand the research result propagation
granularity. Abundant magic design idea are included in this paper, more idea
and analyzing can sear and see other paper naming with a start of Robot Design
System with Jinwei Lin, the only author of this series papers.
