Construction Machine Control by Manual Load Guidance
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Solution Overview
Problem
Construction machines, such as cranes and excavators, face challenges in operator control and monitoring due to the limitations of traditional input and output devices, which can lead to distractions and difficulties in handling the machine while performing tasks, especially when using mobile end devices that may not be easily perceivable or usable with one hand.
Innovation Solution
A detection device is integrated into the construction machine to detect manual manipulation forces and movements, allowing the control apparatus to assist the functional element's movement, enabling intuitive control through gesture recognition and wearable modules that allow hands-free operation, enhancing operator comfort and reducing distractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mobile end device (tablet, remote control, cellular phone) is used for controlling and monitoring the construction machine, then the operator can remotely control the machine and access monitoring reports, but the operator may leave the device at the control station causing delayed perception of monitoring reports or inability to receive real-time feedback
Solution Approach 1:
The patent introduces a portable speaker as an intermediary device that wirelessly receives monitoring reports from the control apparatus and converts them into audible signals. This mediator ensures that the operator always receives real-time feedback about machine status, load conditions, and warnings regardless of their physical location or whether they are wearing the end device.
Solution Approach 2:
The patent replaces the mechanical/visual interface of traditional displays and control panels with acoustic output through bone-conduction technology. The portable speaker converts visual monitoring data into audible warnings and status reports that can be perceived through bone conduction, allowing operators to receive information without visual attention.
2Adaptability or versatility
If a mobile end device is used for control, then the operator can access control functions remotely, but it becomes difficult to simultaneously actuate the device and perform other tasks requiring both hands such as lashing the lifting hook or moving a concrete skip
Solution Approach 1:
The portable speaker acts as an intermediary that provides auditory feedback and control capabilities without requiring the operator's hands. By converting monitoring reports and control commands into audible signals, the system enables hands-free operation while maintaining full control versatility.
Solution Approach 2:
The patent substitutes manual interaction with visual displays and physical controls by implementing bone-conduction audio output. This allows the operator to receive all necessary information and issue control commands through voice or other non-manual means, freeing both hands for operational tasks.
3Measurement precision
If traditional control input devices (control keypad, adjustment levers, joysticks, command switches, touchscreen) are used, then the machine can be controlled with precise input, but the operator experiences distraction and reduced comfort when performing tasks that require attention to functional elements
Solution Approach 1:
The patent replaces traditional mechanical control interfaces with acoustic feedback and bone-conduction technology. By providing real-time auditory information about machine status, load conditions, and position, the operator can make precise control decisions without visual distraction, maintaining input precision while significantly improving comfort and safety.
Solution Approach 2:
The system implements continuous acoustic feedback through the portable speaker, providing the operator with real-time information about machine operation, load status, and potential hazards. This constant feedback loop enables precise control while reducing operator cognitive load and distraction.
Data Source
AI summary
A construction machine, in particular in the form of a crane, cable excavator or similar, comprising an electronic control device for controlling and/or detecting operating parameters, in addition to at least one drive device for moving a functional element, especially a load take-up means. The functional element of the construction machine is guided in the desired direction by the exertion of manipulation forces on the functional element, or on a component fastened thereto, or the functional element is moved manually in a designated direction, this motion then being assisted by the drives of the construction machine. If the functional element is manually pressed or pulled in a designated direction and/or rotated, or if this is at least attempted, these motion attempts are detected and converted into a corresponding positioning motion of the construction machine.