Flasher Fish Sonar Rotary Display Signal Transmission
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Solution Overview
Problem
Prior flasher type fish sonar requires the same number of brushes and slip rings as light emitting diodes, leading to increased complexity and potential for vibration and noise due to the multiple connections for power and signal transmission.
Innovation Solution
The use of three slip rings for power and ground, combined with electromagnetic coupling for power supply and serial light communication for data display, reduces the number of necessary connections by employing a timing forming portion, A/D converter, buffer memories, and a display control portion to manage signal transmission through light emitting diodes on a rotary disk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of brushes and slip rings is increased to match the number of light emitting diodes, then each LED can be independently powered and controlled, but the device complexity and the number of connections increase
Solution Approach 1:
Multiple slip rings are combined into a single slip ring structure that integrates multiple connection functions. Instead of having separate brushes and slip rings for each LED, the invention uses one slip ring with multiple contact points and corresponding brushes that collectively serve all LED connections, thereby reducing overall complexity while maintaining independent control capability
Solution Approach 2:
The slip ring assembly is designed to perform multiple functions simultaneously - power supply, ground connection, and data transmission for multiple LEDs through a single integrated structure. This multi-functional design eliminates the need for separate dedicated connections for each LED, reducing the total number of components while preserving full control versatility
2Reliability
If multiple brushes and slip rings are used for each light emitting diode, then reliable power and signal transmission is achieved, but vibration and noise increase
Solution Approach 1:
Multiple separate brush-slip ring pairs that generate individual vibrations are merged into a single integrated slip ring structure. This consolidation reduces the number of independent vibration sources and minimizes overall mechanical noise while maintaining reliable electrical contact for all LED connections through the unified structure
Solution Approach 2:
The slip ring is designed with uniform contact points and consistent brush arrangements that distribute mechanical stress evenly across the structure. This homogeneous design prevents localized vibration hotspots and ensures smooth, consistent rotation with minimal noise generation while maintaining reliable signal transmission
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 configuration simplifies the power and signal transmission, reduces noise and vibration, and effectively displays sonar data and letter characters using fewer physical connections, enhancing the operational stability and clarity of the fish sonar display.
Implementation Method 1
a fish sonar signal display portion for displaying a fish sonar signal from the display control portion by light emitting diodes mounted on the edge of the rotary disc
Implementation Method 2
electromagnetic coupling is used for a power supply
Data Source
AI summary
A flasher type fish sonar includes a front case in which a display window is formed in front, a rotary disc opposite to the display window rotated by a motor, an ultrasonic transducer for transmitting ultrasonic waves in the water by a control portion and for receiving reflected signals in the water, a display signal transmitting portion for transmitting reflected signals received by the ultrasonic transducer and display data forming formed by the control portion and for transmitting the same to the rotary disc, a display control portion attached to the rotary disc, a fish sonar display portion displayed by light emitting diodes attached near an edge of the rotary disc, and a letter illustration numeral display portion displayed by light emitting diodes inside of center portion of the rotary disc.