The Adaptive Calibration Method for Single-Beam Distance Sensors

The agility process used in Industry 4.0 increasingly influences on the location changes of the used production resources. Ensuring safety in a production environment is critical, especially when objects are moving or change their location e.g. transport trolleys, Autonomous Guided Vehicles or mobile robots. One of the methods of moving object discovery by other objects, e.g. AGV is application of distance sensors. Different sensors enable various measurement quality. In order to improve their accuracy, diverse calibration and filtration methods are often used. The article presents adaptive curve fitting method to increase accuracy of measurements for single-beam distance sensors. The research results of calibration were presented based on example of low cost ultrasounds and LiDARs sensors. Proposed adaptive curve fitting method enables to improve measurement accuracy even by 97%.