Mobile Robot Calibration Device Using Mechanical Positioning Blocks

The patent replaces the visual calibration system (optical/camera-based) with a mechanical positioning system. Instead of using multiple cameras to capture and process image data for calibration, the invention uses a positioning block with precise mechanical features (positioning surface, positioning hole, positioning protrusion) that physically constrain and define the robot base position and orientation. This mechanical substitution eliminates the need for complex image data processing while maintaining calibration accuracy through precise mechanical geometry.

The patent extracts the essential calibration function from the complex visual calibration system and isolates it into a dedicated mechanical positioning block. The positioning block contains only the necessary mechanical features (positioning surface, positioning hole, positioning protrusion) required for accurate positioning, removing the unnecessary complexity of multiple cameras and extensive image processing algorithms. This extraction simplifies the calibration system while preserving its core functionality.

The patent replaces expensive visual calibration equipment (multiple high-precision cameras, computers for image processing, software licenses) with a simple mechanical positioning block that can be manufactured using conventional machining methods. The positioning block uses basic mechanical features (positioning surface, positioning hole, positioning protrusion) that are inexpensive to produce and eliminate the need for costly optical equipment and processing infrastructure.

The positioning block is designed as a simple, inexpensive mechanical component that can be easily manufactured and replaced if needed. Rather than investing in expensive, complex visual calibration systems, the patent adopts a straightforward mechanical solution that prioritizes ease of manufacture and low cost while still achieving the required calibration accuracy through precise mechanical geometry.

The patent replaces the time-consuming visual calibration process with an immediate mechanical positioning process. When the mobile robot moves to a new position, the positioning block is simply placed on the workbench and the robot base is positioned on the positioning block, achieving accurate calibration instantly through mechanical contact rather than requiring time-consuming image capture and processing operations.

The positioning block is pre-prepared with precise mechanical features (positioning surface, positioning hole, positioning protrusion) that define the correct position and orientation. This preliminary preparation of the mechanical positioning elements eliminates the need for real-time image processing during calibration, allowing the robot to be quickly and accurately calibrated at new positions by simply engaging the pre-configured mechanical features.