Abstract: For application development of path planning and navigation techniques for mobile robots,a navigation system based on omni vision is developed.Firstly,we briefly introduce the architecture and functionality of the navigation system.Secondly,the method of environment sensing and mapping based on omni vision is proposed.Meanwhile two path planning algorithms based on RNN(recurrent neural network) are also described in detail followed by the implementation of the navigator according to the planned path.Lastly,the performance of navigation system and the feasibility of the path planning algorithms are evaluated through a case study using a real mobile robot.