Technology of Mobile Robot Localization Assisted byQRCodes

With the improvement of productivity levels, people's demand for enhanced functionality and expanded application scenarios of mobile robots is increasing. Mobile robots are playing an increasingly critical role in several fields. Ensuring that mobile robots can achieve high-precision localization in various environments has become the basis for its role. However, traditional laser-based localization technologies suffer from significant errors in areas with indistinct environmental features. Firstly, the QR code is deeply studied, including its characteristics, classification and function principle in localization calculation. To address this, a method that utilizes QR codes for assisting in robot localization is proposed. To validate the proposed method, a specific QR code was selected and the key technologies for mobile robot localization were thoroughly studied. The method integrates QR code information using laser-based radar and the Cartographer SLAM algorithm to achieve accurate localization. To verify the research results, a Gazebo simulation platform for mobile robots was established, and the simulations and physical validations of the proposed method were completed. The results show that the QR code assisted localization technology can significantly improve the localization accuracy in the area with not obvious environmental characteristics. Moreover, through the research of mobile robot localization technologies, it has a significant promoting effect on the cultivation of students' engineering practice and innovation ability.