Electrostatic Spray Control for High-Voltage Electrode Safety
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Solution Overview
Problem
The existing spray machines pose a risk of operators accidentally touching high-voltage electrodes, which can be dangerous.
Innovation Solution
A control method and program that monitor the actuated state of the spray machine's body to control an electrostatic charge device, ensuring the voltage applied to the electrode is managed accordingly, preventing accidental contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an electrostatic charge device applies high voltage to a load including an electrode to charge spray matter, then the spray efficiency and coverage are improved, but the risk of operators accidentally touching the high voltage electrode increases
Solution Approach 1:
The control device disables the electrostatic charge device before the spray machine stops moving, and enables it after the spray machine starts moving again. This preliminary action of disabling/enableing based on motion state prevents operators from accidentally touching high voltage electrodes during maintenance or when the machine is stationary, while maintaining spray efficiency during operation
Solution Approach 2:
The control device continuously monitors the motion state of the spray machine (moving or stopped) and dynamically adjusts the electrostatic charge device state accordingly. This feedback mechanism ensures that high voltage is only applied when the machine is in motion, eliminating the risk of electric shock to operators while maintaining productive spraying during movement
2Reliability
If the electrostatic charge device is always enabled to maintain charging capability, then the spray quality is consistently high, but the safety risk to operators is continuously present
Solution Approach 1:
The electrostatic charge device state is made dynamic rather than static. The control device automatically switches between enabled and disabled states based on the real-time motion status of the spray machine. This dynamic control maintains spray quality consistency during operation (when enabled) while ensuring operator safety during stopping/maintenance (when disabled)
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively prevents operators from touching high-voltage electrodes by dynamically managing the voltage state based on the machine's actuated state, enhancing safety.
Implementation Method 1
an electrostatic charge device that applies a high voltage to a load, which includes an electrode, thereby to charge a spray matter (chemical solution)
Data Source
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AI summary
[Problem] To provide a spray machine control method, a spray machine control program, and a spray machine that make it easy to prevent an operator or the like from erroneously touching an electrode to which a high voltage is applied. [Solution] A method of controlling a spray machine provided with a machine body capable of running, a spray nozzle 41 that is supported to the machine body and sprays a liquid spray matter, and an electrostatic charge device 9. The electrostatic charge device 9 applies the voltage VH1 to the load 90 which includes the electrode 91, thereby to electrically charge the spray matter sprayed from the spray nozzle 41. The method has: acquiring an actuated state of the machine body; and controlling, according to the actuated state of the machine body, the electrostatic charge device 9 in a manner to change a state of applying the voltage VH1 to the load 90.