Research Review of Environmental Cognition Techniques of Mobile Robots in Unknown Environment

In unknown environment,environmental cognition technique of mobile robot is the precondition of implementation for its environment modeling,localization,path planning and self-navigation control,and it is one of the key techniques of mobile robot research.From three kinds of status of the environment information's acquiring,processing and expressing,aiming at present environment information acquiring methods,environment information feature extracting and fusion methods and environment map modeling methods,and other practical methods,environmental cognition techniques of mobile robot in unknown environment were introduced in detail.Finally,the future research work tendencies were pointed out.