Working Machine Camera Swing Control for Situational Awareness
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Solution Overview
Problem
Operators remotely controlling working machines face challenges in recognizing the surrounding situation due to excessive or insufficient freedom in the swing function of the actual machine image capturing device, leading to obstructed recognition and insufficient situational awareness for operation.
Innovation Solution
An image capturing function control system that limits the swing function of the actual machine image capturing device to a first state when the working machine is operational and returns it to an initial posture when stopped, compared to a second state where the swing function is not limited, ensuring appropriate situational awareness for the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the swing function of the actual machine image capturing device is given high freedom to allow operators to variously change looking direction, then the operator can confirm the situation around the working machine similarly to operating the actual machine, but the degree of freedom becomes extremely high causing the display magnification to not return to minimum and obstructing recognition of the surrounding situation
Solution Approach 1:
The system dynamically changes the parameter of swing function freedom based on the operational state of the working machine. When the machine is operating, the swing function is limited to a predetermined range; when stopped, full freedom is restored. This parameter change resolves the contradiction by adapting the degree of freedom to the current operational context.
Solution Approach 2:
The swing function control is made dynamic rather than static. The system automatically adjusts the swing range according to whether the working machine is in operation or stopped state, allowing the operator to benefit from both limited swing during operation (preventing obstruction) and full freedom when stopped (allowing comprehensive viewing).
2Reliability
If the swing function is limited to prevent obstruction of recognition, then the display magnification returns to minimum and surrounding situation recognition is maintained, but the operator cannot variously change looking direction to confirm the situation around the working machine
Solution Approach 1:
The system dynamically adjusts the swing function constraints based on the working machine's operational state. During operation, swing is limited to maintain situational awareness; when stopped, full swing freedom is restored. This dynamic approach resolves the contradiction by making the limitation temporary and context-dependent rather than permanent.
Solution Approach 2:
The swing range parameter is changed based on operational state. The system transitions between two states: limited swing range during operation and full swing range when stopped. This parameter change allows the system to satisfy both requirements at different times based on operational needs.
3Measurement precision
If the display magnification is increased to focus on specific areas, then detailed viewing is improved, but the overall situational awareness is reduced and operation becomes obstructed
Solution Approach 1:
The system implements periodic resetting of the display magnification to minimum when the working machine stops operation. This periodic action ensures that after periods of increased magnification for detailed viewing, the system returns to a state of full situational awareness, preventing permanent obstruction of the overall view.
Solution Approach 2:
The display magnification parameter is dynamically changed based on operational state. During operation, magnification is maintained at minimum for full situational awareness; when stopped, magnification can be increased for detailed viewing without compromising overall awareness since operation will resume and reset it.
Data Source
AI summary
A system or the like capable of improving convenience of recognizing a surrounding situation of a working machine for an operator by controlling an image capturing function of an actual machine image capturing device in an appropriate manner in consideration of a state of the working machine is provided. When a working machine 40 is in the first state, an operation of a panning switch SW1 and a tilting switch SW2 is stopped, a posture ϕ of the actual machine image capturing device 412 when the operation is restarted is limited to an initial posture ϕ0. When the working machine 40 is in the second state, after the operation of the panning switch SW1 and the tilting switch SW2 is stopped, the posture ϕ of the actual machine image capturing device 412 when the operation is restarted is the posture ϕ as it is when the operation is stopped.