Playback Control Apparatus Automatic Signal Transmission
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Solution Overview
Problem
Existing playback control systems require manual operation of playback buttons, which is inconvenient and unsafe for drivers, especially when operating a vehicle.
Innovation Solution
A playback control apparatus equipped with a microcomputer and FM transmitter that automatically transmits playback signals to a connected device when a predetermined electric source is supplied, allowing playback without manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation of playback button is required, then playback control is precise and intentional, but driver convenience deteriorates and operation safety worsens
Solution Approach 1:
The system performs preliminary configuration by establishing the connection between playback device and adapter before the driver needs playback. The adapter is pre-configured to automatically transmit playback signals when power is supplied, eliminating the need for manual button pressing during driving.
Solution Approach 2:
The adapter automatically detects when power is supplied from the cigarette lighter socket and autonomously transmits the playback signal to initiate playback, without requiring any manual operation from the driver. The system serves itself by automatically starting playback when electrical power becomes available.
2Reliability
If playback button operation is required during vehicle movement, then playback can be controlled, but driving safety deteriorates
Solution Approach 1:
The adapter autonomously initiates playback by automatically transmitting the playback signal when it detects power supply from the cigarette lighter socket. This self-service mechanism eliminates any need for driver interaction with playback controls during vehicle operation, ensuring driving safety while maintaining ease of playback initiation.
3Productivity
If connection work between playback device and adapter is required, then connection reliability is ensured, but operation time increases
Solution Approach 1:
The connection between the playback device and adapter is established in advance before the driving situation arises. This preliminary connection ensures that when power is supplied during driving, the playback signal can be immediately transmitted without requiring any additional connection actions, thus reducing setup time while maintaining connection reliability.
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
Enables convenient and safe playback of audio devices by automatically initiating playback when the vehicle's engine is started, eliminating the need for drivers to manually operate playback buttons.
Implementation Method 1
The FM transmitter 107 has a signal modulation circuit for FM-modulating a sound signal outputted from the CD player 102
Implementation Method 2
since this radio wave is received by the on-vehicle antenna 104
Data Source
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AI summary
It can be electrically connected with a playback device (102) capable of externally receiving a playback signal for playing back a sound or an image, and transmits the playback signal to the playback device (102) if it is detected that a predetermined electric source was externally supplied to itself.