Industrial Robot Touch Display Coordinate Recalibration
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Solution Overview
Problem
Existing industrial robot control devices are complex to manufacture, susceptible to operation errors, and difficult to use safely, especially in adverse conditions, due to the need for constant visual attention on a touch screen for accurate input and recalibration.
Innovation Solution
A method for recalibrating the display coordinate system relative to the robot coordinate system through a directed finger movement on a touch display, using a virtual operating element to record and calculate a vector direction, which transforms subsequent finger movements into a rotation matrix for precise robot control, allowing for safe and efficient operation without sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual control is performed using a touch screen with virtual keys, then the device can be compact and modern, but the operator must constantly look at the screen to avoid incorrect entries, reducing safety and usability in adverse conditions
Solution Approach 1:
The control system is segmented into two independent parts: a touch screen for displaying information and a separate mechanical input device for control operations. This allows the operator to control the robot without looking at the screen, improving safety while maintaining a compact device structure.
Solution Approach 2:
The mechanical input device serves multiple functions: it provides tactile feedback for precise control, enables operation without visual attention, and maintains compatibility with both simple and complex control scenarios. The single mechanical device replaces multiple virtual controls.
2Ease of operation
If a hand-held device with touch screen is used for robot control, then portability is improved, but the device becomes susceptible to operation errors and complex to manufacture
Solution Approach 1:
The invention merges the advantages of mechanical control precision with the portability of hand-held devices. The mechanical input device is integrated into a compact hand-held form factor, combining the reliability of mechanical components with the portability needed for mobile robot control applications.
3Loss of information
If virtual operating elements on a touch display are used, then the interface can be graphical and informative, but the operator cannot perform blind operation and must maintain visual contact with the screen
Solution Approach 1:
The control interface is segmented into visual information display (touch screen) and tactile control input (mechanical device). This separation allows the operator to receive visual information when needed while performing control operations through tactile feedback alone, enabling blind operation without sacrificing information display capabilities.
Data Source
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AI summary
The invention relates to a method for operating an industrial robot (12) by means of an operating device (10), consisting of touching a virtual operating element of a touch display (20) of a graphical user interface. A function associated with the operating element is triggered when the virtual operating element is touched, the movement of the industrial robot (12) being carried out relative to a robot coordinate system and the movement on the touch display (20) being carried out relative to a display coordinate system. In order to be able to simply align the coordinate systems of the operating device and of the industrial robot with each other, the display coordinate system is recalibrated after a relative movement of the operating device (10) with respect to the robot coordinate system by a directed movement of a finger of an operating person on the touch display (20), the recalibration is activated by actuating a virtual operating element, the directed movement of the finger on the touch display (20) in a selected direction of the robot coordinate system is detected, and a vector direction used for the recalibration, between a first contact point and a release point, is calculated after the finger is lifted off.