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 of operation pattern switching valves to prevent vibration-induced malfunctions.
Innovation Solution
A working machine control device with a slave-side device on the machine and a master-side device outside, enabling remote operation through radio communication, where the slave-side device controls actuator activation and transmits machine-side operation pattern information to the master-side device, allowing the master-side device to switch operation patterns without altering the operation pattern switching valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operation pattern switching valve is mechanically fixed to prevent vibration-induced malfunctions, 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 valve with an electronic control system. The master-side device sends wireless commands to the slave-side device, which then controls the actuator through electronic signals instead of mechanical valve switching. This eliminates the need for manual mechanical operation while maintaining reliable pattern switching through the fixed mechanical structure.
2Reliability
If manual access is required to switch operation patterns, then reliability is improved by preventing unauthorized or accidental switching, but loss of time increases due to the need to physically access the machine
Solution Approach 1:
The patent replaces manual mechanical switching with wireless electronic control. The operator can switch operation patterns remotely by sending commands from the master-side device to the slave-side device, eliminating the time required to physically access the machine while maintaining controlled switching through authentication and command validation.
Solution Approach 2:
The patent introduces a wireless communication system as an intermediary between the operator and the operation pattern switching valve. The master-side device and slave-side device communicate through radio waves, allowing pattern switching without direct physical access to the machine while maintaining secure and controlled operation.
3Ease of operation
If remote control is implemented, then ease of operation is improved by allowing operation from a distance, but device complexity increases due to the need for communication systems
Solution Approach 1:
The patent divides the control system into two separate devices: the master-side device for operation input and the slave-side device for actuator control. This segmentation allows remote operation capability while distributing system complexity across separate functional units that can be independently optimized and maintained.
Solution Approach 2:
The patent uses wireless communication as an intermediary between the master-side and slave-side devices. This communication layer enables remote operation without requiring complex direct integration, allowing the system to maintain simplicity in each individual device while achieving sophisticated remote control functionality through their interaction.
Data Source
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AI summary
A master-side device (60) is provided outside a working machine (1) and transmits, to a slave-side device (50), a command for controlling activation of an actuator (23). The master-side device (60) is provided with a master-side lever (63) and an operation pattern switching unit (83). The operation pattern switching unit (83) switches a master-side operation pattern in which a first command according to an operation of the master-side lever (63) is combined with a second command for an operation of a machine-side lever (17). The slave-side device (50) transmits, to the master-side device (60), information of a machine-side operation pattern selected by an operation pattern switching valve (30).