Touchscreen Interlock for Autonomous Farm Control Activation
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Solution Overview
Problem
In autonomous agricultural systems, operators may unintentionally initiate operations due to inadvertent interactions with the user interface, such as a touchscreen, leading to potential accidents or inefficiencies.
Innovation Solution
A control system with a touchscreen display and a controller that includes a processor and memory, configured to receive and send signals for unlocking and controlling operations, featuring an interlock mechanism to prevent unintentional activations by requiring specific inputs like gestures or pressure thresholds to unlock manual controls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touchscreen interface is used for controlling autonomous agricultural operations, then ease of operation is improved, but the risk of unintentional activation increases
Solution Approach 1:
The system requires a preliminary action (first input) to unlock the control function before it becomes active. This preliminary step ensures that subsequent operations are intentional, resolving the contradiction by maintaining ease of operation while preventing unintentional activation through a deliberate unlocking sequence.
Solution Approach 2:
The control function dynamically changes its state between locked and unlocked based on received inputs. When locked, the control is protected from activation; when unlocked, it responds to inputs. This dynamic state transition allows the system to be easy to operate when needed while maintaining protection against accidental activation.
2Ease of operation
If manual controls are made accessible for operator intervention, then ease of operation is improved, but safety is worsened due to potential accidental activation
Solution Approach 1:
Before manual controls become accessible, a preliminary unlocking action must occur. This ensures that operators consciously enable manual control rather than accidentally activating it, thereby maintaining safety while preserving ease of operation when properly initiated.
Solution Approach 2:
The locked/unlocked state acts as an intermediary mechanism between the control interface and the autonomous system. This intermediary state prevents direct accidental activation while allowing intentional access, resolving the safety-ease of operation contradiction by mediating control access.
Data Source
AI summary
A control system for an autonomous agricultural system includes a display configured to display at least one control function associated with at least one operation. The display is configured to output a first signal indicative of a first input. The control system includes a controller comprising a processor and a memory. The controller is communicatively coupled to the display and configured to receive the first signal indicative of the first input and to send a second signal to the display indicative of instructions to display a second control in an unlocked state. The display is configured to output a third signal to the controller indicative of the second input. The controller is configured to receive the third signal and to output a fourth signal indicative of instructions to control the at least one operation of the autonomous agricultural system.