For the second-order ring formation of multi-agent systems control problems,we use second-order kinetic model integrator forms of control input methods,and use location information and speed information to design control law.Through a series of proof and the derivation,the sufficient conditions for second-order multi-agent system are given to achieve ring formation.Assuming that all of the intelligence body always in motion on a fixed ring,and each agent can only perceive immediately before and after the tw...