Hand-Held Control Handle With Multi-Function Switch Mapping
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Solution Overview
Problem
Existing hand control devices for machines are limited in the number of functions they can control due to space constraints and are prone to operator errors from complex switch configurations, leading to increased malfunction risks.
Innovation Solution
Integration of a display into the handle of the hand control device allows for a reduced number of function switches, with a selection switch assigning multiple functions to each switch, and a processor-controlled unit processes signals to generate control signals for machines, while a touch-sensitive display and vibration mechanism provide additional operational aids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If more function switches are added to the handle to control more machine functions, then the number of controllable functions increases, but the handle size must increase and operator error risk increases due to accidental presses
Solution Approach 1:
Each function switch is configured to perform multiple functions through different switching states (first switching state, second switching state, third switching state). For example, a function switch can control different machine functions depending on which switching state is activated, allowing one physical switch to replace multiple dedicated switches.
Solution Approach 2:
The function switches incorporate movable components that can be actuated in different directions or positions to change switching states. The selection switch can be moved between different positions to dynamically change which function is assigned to each function switch, allowing the system to adapt its configuration based on operational needs.
2Adaptability or versatility
If more function switches are added to the handle to control more machine functions, then the number of controllable functions increases, but the device complexity increases and operator errors increase due to accidental presses
Solution Approach 1:
A reduced number of function switches (e.g., three function switches) are designed to control a larger number of machine functions through multiple switching states and configurable assignments. The selection switch enables dynamic reconfiguration of function assignments, allowing the same physical switches to control different functions in different operational modes.
Solution Approach 2:
The system pre-configures multiple switching states for each function switch and allows preliminary assignment of functions to switching states through the selection switch. This preliminary configuration reduces the need for complex real-time decision-making by the operator, as the system is already set up to handle multiple functions with fewer switches.
3Device complexity
If the number of function switches is reduced to decrease device complexity, then operator errors decrease, but the number of controllable functions is limited
Solution Approach 1:
Each function switch is designed with multiple switching states (first, second, and third switching states) that can be assigned to different machine functions. The selection switch enables configuration of which function corresponds to which switching state, allowing a small number of physical switches to control many different machine functions through systematic state assignment.
Solution Approach 2:
The system adds a configurational dimension through the selection switch, which allows the same physical switches to be assigned to different functions based on the selected configuration. This transforms the system from a fixed one-to-one switch-function mapping to a many-to-many mapping through the added configuration parameter.
4Ease of operation
If a display is integrated into the handle to show function assignments, then operator confusion decreases, but the handle size increases
Solution Approach 1:
The display provides a visual representation (copy) of the current function assignments and switching states. Instead of requiring the operator to memorize or physically test each switch combination, the display creates a visual map of the current configuration, showing which function corresponds to which switching state for each function switch.
Solution Approach 2:
The display provides real-time feedback about the current configuration state, showing operators which functions are assigned to which switching states. This feedback mechanism allows operators to verify settings before operation and understand the current system state without trial and error.
Data Source
Figure 1~2
Figure 3
AI summary
The invention relates to a hand-held control unit (10) for controlling machines. The hand-held control unit (10) includes a handle (12) which is designed to pivot about at least one axis. Furthermore, signal generation means produce control signals for a signal processing unit (48), wherein the control signals are generated with respect to the respective deflection of the handle (12). An additional function for controlling the machine can be activated by means of a function switch (18).