On-Vehicle Audio Video System Wireless RF Control
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Solution Overview
Problem
Conventional on-vehicle audio/video systems are inconvenient for drivers to operate due to cable connections, which limit flexibility and can cause distractions while driving, increasing the risk of accidents.
Innovation Solution
An on-vehicle audio/video system utilizing RF transmission between a controller, data source, and playing device, allowing for wireless control and installation, with the controller mounted on the steering wheel for easier driver access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cable connections are used to connect controller, data source and playing device, then the system structure is stable and reliable, but the flexibility of installation is limited and operation convenience deteriorates
Solution Approach 1:
The patent extracts and removes the cable connections from the system, replacing them with wireless RF transmission. The controller, data source, and playing device communicate via RF signals without physical cable connections, eliminating the complexity and operational inconvenience associated with cables while maintaining system functionality.
Solution Approach 2:
The patent replaces the mechanical cable connection system with an electromagnetic RF transmission system. Instead of using physical cables for signal and data transmission, the system uses radio frequency waves to communicate between components, thereby improving ease of operation and installation flexibility.
2Ease of operation
If control panel is mounted at the right side of steering wheel, then the controller is easily accessible, but drivers have to move one hand away from steering wheel causing distraction and safety issues
Solution Approach 1:
The patent introduces a wireless RF communication intermediary between the driver and the audio/video system. The driver can control the system through wireless commands without needing to physically reach for or touch a control panel, allowing hand operation while maintaining steering wheel contact and thus preserving driving safety.
3Adaptability or versatility
If cable connections are used between system components, then signal transmission is stable, but installation flexibility is limited
Solution Approach 1:
The patent removes cable connections from the system architecture, allowing components to be positioned and installed without being constrained by physical wiring requirements. This extraction of cables enables flexible installation in various vehicle configurations and positions while reducing the complexity of cable management.
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
The RF-based system enhances operational convenience for drivers by eliminating cable constraints, providing flexible installation options and reducing the risk of accidents by allowing hands-free control of audio/video functions.
Implementation Method 1
the controller comprises at least a first radio frequency (RF) transmitter, the data source comprises at least a first RF receiver... The controller transmits an RF control signal to the data source
Data Source
AI summary
An on-vehicle audio/video system is provided which comprises a controller, a data source and a playing device, wherein the controller comprises at least a first transmitter, and the data source comprises at least a first receiver, a first micro-controller and a second transmitter. The controller comprises at least a first RF transmitter. The data source comprises at least a first RF receiver, a first micro-controller and a second RF transmitter. The playing device comprises at least a second RF receiver. The controller sends an RF control signal to the data source and/or playing device. The first RF receiver in the data source receives the RF control signal and sends the signal to the first micro-controller for processing. The second transmitter transmits data signal and/or control signal to the playing device under the control of the first micro-controller.