The invention discloses a self-learning wheel chair control method based on change of a
gravity center of a
human body, and belongs to the field of
pattern recognition and intelligent systems. According to the self-learning wheel chair control method, a
pressure sensor is installed between a wheel chair seat and a framework so as to collect force distribution under a sitting position of the
human body, two-dimensional areal coordinates are calculated, and real-
time data of the center of the gravity are stored in an embedded type computer; and
algorithm optimization is conducted to the number of neurons in an output layer, network initial
weight value, a network neighborhood
radius adjusting rule and the like according to a basic learning process of a normal self-organizing feature map (SOFM)
algorithm, and therefore operating complexity is reduced, calculating instantaneity of the
algorithm in application is improved, and the purpose that algorithms are controlled to be different according to difference of people is achieved. By utilizing the improved SOFM algorithm, and in the process of driving
habit learning,
rate of convergence of an SOFM clustering algorithm and learning efficiency are greatly improved, instantaneity of the algorithm and accuracy of cluster are improved, the requirement of wheel chair real-time learning and controlling is met, and the problem that manual parameter adjustment is fussy due to difference of driving habits of users is solved.