Method for optimizing line design linetype based on multi-information fusion

The invention provides a method for optimizing a line design linetype based on multi-information fusion. The method for optimizing the line design linetype based on the multi-information fusion comprises the following steps: selecting the state of a combined navigation system consisting of an inertial navigation system, a speedometer, a satellite and an RFID (Radio Frequency Identification) sensor to form a system state vector; calculating and acquiring a probability distribution function of the integrated navigation system according to the system state vector; gaussian distribution transformation is carried out on the probability distribution function, and a measurement and observation difference function is obtained according to the probability distribution function after Gaussian distribution transformation; expressing a measurement and observation difference function by adopting a factor graph algorithm; deriving the measurement and observation difference function to obtain a fusion result of the state of