The degradation of image quality due to high temperature environment in summer, not infrequent faulty operations, and battery discharge problem due to high current consumption of a blackbox bring dissatisfaction to consumers of a blackbox. The low power design, the addition of cutoff function of battery discharge, and usage of secondary battery discharge problems to some extent.
In this thesis, We presented the analysis of the effects on the image quality with the change of temperature by each component of the camera module used in car blackbox. On the basis of this thesis, we proposed the component selection guide and optimal design parameter selection guide of the camera module to improve the resolution of image of vehicle camera in high temperature.