The invention discloses a
brake performance
detector based on an
optical flow sensor, and belongs to the technical field of
brake performance detection, the
brake performance
detector comprises an
optical flow sensing
assembly and a portable computing terminal, and the
optical flow sensing
assembly collects and preprocesses
road surface image data, acceleration data, vehicle body
pitch angle rate data and vertical height data when a vehicle moves; the portable computing terminal is internally provided with a feature calculation module, an optical flow correction module, an
inertia calculation module and a brake evaluation module. According to the invention, the optical flow sensing
assembly integrates multiple units and cooperates with multiple modules of the portable computing terminal, and active texture projection, geometric attitude compensation and adaptive
weight distribution strategies are combined, so that the detection problems caused by pavement texture loss, insufficient illumination, braking pitching errors,
mechanical vibration interference and muddy water shielding under complex working conditions are solved; all-weather, high-precision and high-reliability detection of the braking performance of the motor vehicle is realized, and the device is portable to install and convenient to operate.