自动检测常常要对通过传感器测得的各种信号进行处理 ,而这些信号往往是非线性的。对同一类传感器来讲 ,如果其一致性较好 ,则处理起来并不难 ,且精度也可保证。然而对于一致性不好 ,甚至相差甚远的传感器 ,处理起来比较难 ,精度也难以保证。为解决上述问题 ,本文提出采用软件设活动点法对非线性曲线分段线性化 ,点的数量及点的间距任意设置。 Automatic detection often requires processing of various signals measured by the sensor, which are often non-linear. For the same type of sensor, if its consistency is better, it is not difficult to handle, and the accuracy can be guaranteed. However, the consistency is not good, even a far cry from the sensor, it is more difficult to handle, the accuracy is difficult to guarantee. In order to solve the above problems, this paper proposes a software-based activity point method for piecewise linearization of nonlinear curves, the number of points and the pitch of points set arbitrarily.