Patent ID: 7220231

Claim:
A walking condition determining device for determining a walking condition of a walker having a plurality of legs, comprising: a measuring means for measuring a parameter that indicates a displacement amount of a bottom end portion of a leg of the walker; a first storage means for storing a pattern of a plot in a determination space corresponding to the parameter and a walking condition of the walker such that they are associated with each other; a generating means for generating a plot defined in the determination space by the parameter measured by the measuring means; and a determining means for determining the walking condition of the walker on the basis of comparison between the pattern of the plot stored in association with the walking condition by the first storage means and a pattern of the plot generated by the generating means, wherein the first storage means stores an existence pattern of a plot in the determination space as the plot pattern, and the determining means determines the walking condition of the walker on the basis of the determination whether or not the existence pattern stored by the first storage means is identical or similar to an existence pattern of the plot generated by the generating means, wherein the measuring means comprises a first measuring means for measuring, as a first parameter, a difference between the length of a leg of the walker and a vertical interval between a top end portion and a bottom end portion of the leg, and the determining means determines that the walker is in a normal walking condition if an existence pattern indicates that a plot in the determination space is located in a low region wherein the first parameter is below a predetermined threshold value, whereas it determines that the walker is in a slope walking condition if an existence pattern indicates that a plot is located in a high region wherein the first parameter is the predetermined threshold value or more.