A positioning module for measuring position, comprising: a wire which can be unwound by an external force; a length calculation unit configured to calculate the unwinding length when the wire is unwound, the length calculating unit comprising a first rotating member, a rotation amount measurement sensor and a length calculation module; an angle calculation unit configured to calculate the unwinding angle when the wire is unwound; and a location information calculation unit configured to calculate the location information of at least some points on the wire by using the unwinding length and the unwinding angle calculated characterized in that it further comprises a speed calculation unit calculating a speed value using the moving distance(ΔL) of at least a point on the wire during a unit interval of time(ΔT); and a control signal generator configured to generate a control signal by comparing the speed value, which is calculated in the speed calculation unit, with a threshold value set in advance; and in that the angle calculation unit comprises a second rotation member, a rotation angle measuring sensor and an angle calculation module; the second rotation member is formed in a cylindrical shape and a groove through which the wire can pass from the inside to the outside of the second rotation member is formed; the second rotation member is located on some points of the wire located inside of the second rotation member and on the outside of the positioning module, when the unwinding angle of the wire due to an external force is changed; the groove of the second rotation member being configured to rotate by receiving an external force from the wire in order to form a straight line between the points upon receiving external force; the rotation angle measuring sensor is connected to the second rotation member to measure the rotation angle of the second rotation member caused by the change in the unwinding angle of the wire; and the control signal generator is further configured to generate the control signal corresponding to the number of curves of speed value where the speed value exceeds a threshold value within a preset unit interval of time wherein the number of curves is greater than two. a wire which can be unwound by an external force; a length calculation unit configured to calculate the unwinding length when the wire is unwound, the length calculating unit comprising a first rotating member, a rotation amount measurement sensor and a length calculation module; an angle calculation unit configured to calculate the unwinding angle when the wire is unwound; and a location information calculation unit configured to calculate the location information of at least some points on the wire by using the unwinding length and the unwinding angle calculated characterized in that it further comprises a speed calculation unit calculating a speed value using the moving distance(ΔL) of at least a point on the wire during a unit interval of time(ΔT); and a control signal generator configured to generate a control signal by comparing the speed value, which is calculated in the speed calculation unit, with a threshold value set in advance; and in that the angle calculation unit comprises a second rotation member, a rotation angle measuring sensor and an angle calculation module; the second rotation member is formed in a cylindrical shape and a groove through which the wire can pass from the inside to the outside of the second rotation member is formed; the second rotation member is located on some points of the wire located inside of the second rotation member and on the outside of the positioning module, when the unwinding angle of the wire due to an external force is changed; the groove of the second rotation member being configured to rotate by receiving an external force from the wire in order to form a straight line between the points upon receiving external force; the rotation angle measuring sensor is connected to the second rotation member to measure the rotation angle of the second rotation member caused by the change in the unwinding angle of the wire; and the control signal generator is further configured to generate the control signal corresponding to the number of curves of speed value where the speed value exceeds a threshold value within a preset unit interval of time wherein the number of curves is greater than two.