Remote Working Machine Control for Operation Pattern Switching
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Solution Overview
Problem
Existing working machine control systems require manual access to switch operation patterns, which is labor-intensive and time-consuming, especially when remote control is involved, as they rely on mechanical fixation to prevent pattern switching due to vibrations.
Innovation Solution
A remote working machine control device with a slave-side device on the machine and a master-side device outside, enabling radio communication to control the actuator, where the master-side device receives information on the selected operation pattern from the slave-side and converts commands to switch operation patterns without physically altering the operation pattern switching valve, allowing remote operation pattern switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operation pattern switching valve is mechanically fixed to prevent switching due to vibration, then reliability is improved, but ease of operation deteriorates because manual access is required to switch patterns
Solution Approach 1:
The patent replaces the mechanical operation pattern switching system with an electronic control system. The master-side device sends wireless commands to the slave-side device, which then controls the operation pattern switching valve electronically, eliminating the need for manual mechanical access while maintaining vibration resistance through the fixed mechanical structure
Solution Approach 2:
The patent introduces a master-side device and slave-side device as intermediaries between the operator and the operation pattern switching valve. The master-side device captures operator input, transmits it wirelessly via the communication unit, and the slave-side device executes the command to switch patterns, thereby mediating the switching process without requiring physical access to the machine
2Reliability
If manual access is required to switch operation patterns, then reliability is improved by preventing accidental switching, but loss of time increases due to the need to physically access the machine
Solution Approach 1:
The patent replaces the mechanical access-based switching system with a wireless electronic control system. The master-side device communicates with the slave-side device through radio waves, allowing instant pattern switching without the time-consuming process of physically accessing the machine and manually operating the switching valve
Solution Approach 2:
The operation patterns are pre-configured in the control system, allowing the operator to select from predetermined patterns through the master-side device. This preliminary preparation of switching options enables rapid pattern changes without requiring time for manual configuration or physical access to adjustment mechanisms
3Ease of operation
If remote control is used to operate the working machine, then ease of operation is improved for inaccessible locations, but loss of information occurs regarding the current operation pattern selection
Solution Approach 1:
The slave-side device detects the current operation pattern through the detection unit and transmits this information back to the master-side device via the communication unit. This feedback loop ensures that the remote operator has real-time awareness of the current operation pattern selection, eliminating information loss while maintaining remote operation capability
Solution Approach 2:
The communication unit serves multiple functions: it transmits control commands from the master-side device to the slave-side device for pattern switching, and simultaneously transmits status information from the detection unit back to the master-side device. This multi-functionality eliminates the need for separate information transmission systems while supporting comprehensive remote operation
Data Source
AI summary
A master-side device is provided outside a working machine and transmits, to a slave-side device, a command for controlling activation of an actuator. The master-side device is provided with a master-side lever and an operation pattern switching unit. The operation pattern switching unit switches a master-side operation pattern in which a first command according to an operation of the master-side lever is combined with a second command for an operation of a machine-side lever. The slave-side device transmits, to the master-side device, information of a machine-side operation pattern selected by an operation pattern switching valve.