Frequency Control Apparatus for Noise Removal
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Solution Overview
Problem
Conventional control apparatuses face challenges in connecting radio receivers with various devices for noise removal, requiring complex configurations and wire connections, especially when devices are not pre-connected, leading to increased complexity and limited wiring layouts.
Innovation Solution
A frequency control apparatus that includes an input operation unit to detect operator inputs and a control unit that changes the drive frequency of devices to minimize noise interference by calculating transmission frequencies and adjusting the drive frequency to be farther away from multiplied frequencies, allowing for easy noise removal without pre-communication connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio receiver and control apparatus are communicably connected in advance to remove noise, then noise removal effectiveness is improved, but apparatus configuration complexity increases
Solution Approach 1:
The control apparatus automatically detects radio wave noise and autonomously adjusts the drive frequency without requiring communication or configuration with the radio receiver. The system serves itself by monitoring the radio receiver's operation state and independently making frequency adjustments to eliminate noise, thus resolving the contradiction between effective noise removal and configuration complexity
Solution Approach 2:
The control apparatus uses feedback from detecting the radio receiver's operation state (ON/OFF or duty control) to automatically adjust the drive frequency. This closed-loop feedback mechanism enables the system to respond to noise conditions in real-time without pre-configuration, achieving effective noise removal while maintaining simple apparatus configuration
2Reliability
If wire connection is adopted to connect radio receiver and control apparatus, then communication reliability is improved, but wiring layout is limited
Solution Approach 1:
The patent replaces the mechanical wire connection system with an electromagnetic detection system. The control apparatus detects the radio receiver's operation state through electromagnetic signals (radio wave noise characteristics) rather than requiring physical wire connections, thus achieving reliable communication while providing complete wiring layout flexibility
Solution Approach 2:
The radio wave noise itself serves as an intermediary carrier of information about the radio receiver's operation state. Instead of direct wire connection, the control apparatus uses the presence and characteristics of radio wave emissions as a mediator to determine when the radio receiver is ON or in duty control mode, enabling communication without physical connections
Data Source
AI summary
A frequency control apparatus includes: an input operation unit which detects a presence/absence of an input of a predetermined operation by an operator; and a control unit which, when the input of the predetermined operation by the input operation unit is detected, calculates radio frequencies, each of the radio frequencies being where a minimum value of differences with respect to multiplied frequencies of a current drive frequency of a device is less than or equal to a predetermined value, and which changes the current drive frequency of the device so that minimum values of differences between the calculated radio frequencies and multiplied frequencies of the changed drive frequency are greater than or equal to a predetermined value. The control unit changes the drive frequency to lessen a change width before and after the change by either increasing the drive frequency or decreasing the drive frequency.