Remote Control Mode Transition for Machine Operation
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Solution Overview
Problem
Existing systems for controlling machines in remote or autonomous modes are limited, as they require a fleet manager to operate multiple machines in autonomous mode, even when only single-machine remote control is necessary, and do not allow for flexible transitions between operational modes.
Innovation Solution
A system and method that enables remote control input devices to initiate and manage different modes of operation, including remote control enabled, reserved, active, and autonomous modes, allowing for flexible control and transition between manual, remote, and autonomous modes, with a central site command server managing overall mission plans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the system requires a fleet manager to operate multiple machines in autonomous mode, then the system can manage complex multi-machine operations, but the system cannot be used for simple single-machine remote control applications
Solution Approach 1:
The system dynamically adapts its operational mode based on application needs. The machine can switch between autonomous mode (with fleet manager) and remote control mode (without fleet manager) through mode transition logic that evaluates the operational context, allowing the same hardware to serve both simple and complex applications
Solution Approach 2:
The control system is designed to perform multiple functions: it can operate as a full autonomous fleet management system when a fleet manager is present, or as a simple remote control system when operating independently. The tele-panel and control logic are universally applicable to both operational scenarios
2Ease of operation
If the system allows direct transition to remote control mode from any state, then the system provides maximum operational flexibility, but the system may compromise safety through uncontrolled mode transitions
Solution Approach 1:
The system requires preliminary actions before mode transitions: the operator must first place the machine in RC enabled mode, then establish a communication link, and only then can the transition to RC reserved or RC active mode occur. These preliminary steps ensure safety checks are performed before allowing flexible mode changes
Solution Approach 2:
The mode transition process is segmented into distinct stages: RC enabled mode (preparation), RC reserved mode (link established), and RC active mode (full remote control). This segmentation allows safety checks at each transition point while maintaining overall operational flexibility
3Adaptability or versatility
If the system allows multiple RC input devices to simultaneously control the machine, then the system provides operational redundancy, but the system cannot determine which device should have priority control
Solution Approach 1:
The system automatically resolves control priority conflicts without external intervention. When multiple RC input devices attempt to connect, the system uses its own logic to determine priority based on communication link establishment timing and device identification, eliminating the need for manual priority assignment
Solution Approach 2:
The system provides feedback to operators about control status: when an RC input device establishes a communication link, the system transitions to RC reserved mode and prevents other devices from connecting. This feedback mechanism clearly indicates which device has control priority and prevents ambiguous multi-device control scenarios
Data Source
AI summary
A system for controlling a machine may include a remote control (RC) input device configured to remotely initiate a RC enabled mode on the machine. The RC input device may subsequently establish a communication link with the machine when no other RC input device currently has a communication link with the machine. The RC input device may transition the machine to a RC reserved mode in which the machine is reserved for control by the RC input device, and transition a mode of control for the machine to a RC active mode from the RC reserved mode. The RC input device may selectively control the machine when in the RC active mode. The RC input device may also transition the mode of control for the machine to an autonomous mode from the RC active mode.