Intelligent Tennis Serving Machine

In order to enable the learners to study the tennis technology well and achieve the goal of building their body as well as thus enhances all the people's enthusiasm to participate in the tennis movement, the author has designed a new tennis serving machine considering the characteristics of the tennis serving. That is the intelligent tennis serving machine.This article elaborated the design thought, the principles of work, the unique feature as well as the control system of the intelligent tennis serving machine, also it discusses the design principles of tennis serving and its control system. Discussing from the principle of the friction gear serving, it introduces the structure and the system design of the tennis serving machine. Based on this, it designs one new and good tennis serving machine. By making use of double round friction principle, this equipment sends out each kind of ball which suits the learner's need, at the same time it uses the computer to control the speed, angle and revolving of every ball in order to meet the various demand of the learners. The feasibility of the equipment has already been proved in many experiments.In the completed experiment of the sample machine, the intelligent tennis serving machine effectively sends out each kind of ball that is of different technical difficulties through the computer control. The serving speed has already achieved 60 to 180KM/H. The examination result indicated that the intelligent tennis serving machine has achieved the target design in advance, also it can satisfy the design request.