The invention is a gait abnormal prompt device, including an acceleration gauge and a processing sheet.Yuan, a prompt unit and a power unit.The accelerometer is fixed to a lower leg, and the acceleration data of the lower leg is measured in a plurality of times per second.The processing unit converts the acceleration data in the first specified time (T1) into a spectrum distribution in time and frequency, and repeats it n times per second.The prompt unit is close to the ankle of one of the lower legs, and provides the donor sensory prompt when driven.The power unit is used to provide the power required for the operation of the device.Among them,Specify a high frequency range and a low frequency range.The total energy of the spectrum in the high frequency range and the low frequency range is calculated.Then calculate the ratio of the total energy in the high frequency range to the total energy in the low frequency range.The ratio of the total energy of n high frequency ranges to the total energy of low frequency ranges is obtained.Compare a total of T2 * N ratios in the second specified time (T2) with a preset value.Calculate the times when the T2 * N ratio is greater than the default value；When the number is greater than a preset number,Driving the prompt unit to give somatosensory prompt；When the number is less than the default number,The prompt unit is not driven.Through the above device, it can instantly remind users of abnormal gait and improve walking performance.本創作為一種步態異常提示裝置，包括一加速規、一處理單元、一提示單元以及一電力單元。該加速規固定於一小腿，以每秒複數次測量該小腿之加速度資料。該處理單元將一第一指定時間(t1)內的加速度資料以時頻轉換成一頻譜分布，並以每秒n次的頻率重複。該提示單元與該小腿之一足踝相貼靠，當被驅動時提供體感覺提示。該電力單元用以提供裝置運作時所需的電力。其中，指定一高頻區間及一低頻區間，分別計算該頻譜分布在該高頻區間及該低頻區間的總能量，再計算該高頻區間的總能量相對該低頻區間的總能量之比值，求得n個該高頻區間的總能量相對該低頻區間的總能量之比值；將一第二指定時間(t2)內共t2*n個比值與一預設值比較，計算該t2*n個比值大於該預設值的次數；當該次數大於一預設次數時，則驅動該提示單元給予體感覺提示；當該次數不大於該預設次數時，則不驅動該提示單元。透過上述裝置，可在偵測使用者步態異常下即時提醒改善行走表現。
