| 摘要 |
PURPOSE: A method for correcting a stop judgement and a sensor error is provided to prevent an error accumulation of a navigation equipment by correcting a sensor error at driving or stopping a vehicle. CONSTITUTION: In a method for correcting a stop judgement and a sensor error, distribution values of an inclination angle variation rate signal, an acceleration signal, and an azimuth variation rate signal are calculated(S11). The calculated distribution values are compared with corresponding distribution threshold values, respectively(S13). If each of distribution values is more than a corresponding distribution threshold value, a count variable, an accumulation variable and a memory space are reset(S15), and then the procedure goes to the step(S11) after storing the inclination angle variation rate, the acceleration signal, and the azimuth variation rate(S17). If each of distribution values is less than a corresponding distribution threshold value, average values of sensor data to the inclination angle variation rate signal, the acceleration signal, and the azimuth variation rate signal are stored(S19). A count value is increased(S21). In a case where the count value is less than a predetermined count threshold value, the step(S17) is performed(S23). In a case where the count value is more than a predetermined count threshold value, a bias is updated(S25).
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