Optical detection system with self-checking device and self-checking method

The invention provides an optical detection system with a self-checking device. The optical detection system comprises a light gathering component used for gathering light, a detector arranged at oneend of the light gathering component and a first self-checking device arranged at one side of the light gathering component and used for conducting self-checking on the detector. The self-checking device is arranged on the side face of the light gathering component and used for self-checking of the detector in the system; and when the system is detected abnormally, the detector is detected and judged independently, so that the reason of abnormity can be judged easily, and a user can maintain the system conveniently. 本发明提供一种带自检装置的光检测系统，包括：用于聚合光线的聚光部件，设置在所述聚光部件一端的探测器以及设置在所述聚光部件一侧用于对所述探测器进行自检测的第一自检装置。通过在聚光部件侧面设置一个自检装置，用于系统中探测器的自检，当系统出现检测异常时，通过单独的对探测器进行检测判断，可以容易的判断出异常的原因，方便了用户对系统的维护。