6. Navigation and Control System
SMF-MP10S User guide V1.1 Shanghai Seer Intelligent Technology Corporation
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Therefore, if the environment is full of objects with high reflectivity, it may affect the related
applications that need to recognize the reflector.
Black Object
For a black object with a reflectivity of 10%, the effective measurement distance of the laser
is 0.1m-10m. For black objects with lower reflectivity, the laser may not be able to recognize
or the distance measured may be inaccurate. Therefore, if the environment is full of black
objects with low reflectivity, the robot may not be able to build an accurate map of the
environment, and thus can’t navigate stably and accurately.
Objects with Specular Reflection
For the purpose of laser measurement, the distance is calculated based on the reflected
laser received, so the objects of different materials will have different effects on the laser
measurement. For the surface of natural object that produces uniform diffuse reflection, the
noise will be relatively low after the laser irradiates onto it, and thus the measurement
accuracy will be relatively high. For the smooth surface that produces specular reflection,
the measurement noise will be relatively high, and thus the measurement accuracy will be
relatively low. For this reason, the robot will be unable to draw an accurate environmental
map if there are too many objects with specular reflection in the environment, so that it
can’t navigate stably and accurately.
