Study on the Method of Cyclometer's Scale-Value

摘要

The cyclometer is the important sensor of vehicle's navigation system, which can measures the distance the vehicle goes. For the different vehicle and different condition of the same vehicle, the coefficient of cyclometer will change greatly, so that great error will be introduced into the measurement of cyclometer, thus the cyclometer must be demarcated In order to increase the measurement precision, this paper studies the method of cyclometer's scale-value, puts forward three methods of cyclometer's scale-value. Through comparison and analysis the conclusion can be taken that the method based on least squares is the best, and the demarcated precision is highest.