Vehicle Auxiliary Port Data Transmission via Audio Channel
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Solution Overview
Problem
Current vehicle infotainment systems lack an efficient method to integrate and control nomadic devices via a wired connection, limiting the ability to transmit control commands and data seamlessly between these devices and the vehicle's computing system.
Innovation Solution
A vehicle computing system that utilizes a wired auxiliary port connection to communicate control commands and data with nomadic devices, employing a protocol that packetizes control messages within music streaming data, allowing for seamless integration and control of applications such as internet radio, navigation, and driver safety services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication (Bluetooth) is used between vehicle infotainment system and nomadic devices, then ease of operation is improved, but reliability and data transmission accuracy deteriorate due to interference and connection stability issues
Solution Approach 1:
The patent introduces an auxiliary audio port as an intermediary communication channel between the vehicle infotainment system and nomadic devices. This port was originally designed for audio transmission but is repurposed to carry data packets, providing a stable wired connection that mediates between the wireless convenience and reliable data transmission requirements.
Solution Approach 2:
The auxiliary audio port is made multi-functional by enabling it to transmit both audio signals and data packets. This universal approach allows the same physical interface to serve multiple purposes: traditional audio output and reliable data communication for control commands, thereby eliminating the need for separate dedicated data ports.
2Productivity
If dedicated data transmission ports are added to vehicle infotainment systems, then data transmission capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The auxiliary audio port serves dual purposes: traditional audio output and data transmission channel. This multi-functionality allows the system to gain enhanced data transmission capability without adding new physical ports or interfaces, thereby avoiding increased device complexity and manufacturing costs.
Solution Approach 2:
The patent merges audio transmission and data transmission functions into a single communication channel (the auxiliary audio port). By combining these functions, the system achieves improved data transmission capability while reducing the number of separate components and interfaces required.
3Ease of manufacture
If existing auxiliary audio port hardware is used for data communication, then manufacturing cost is reduced, but communication protocol complexity increases due to packetization requirements
Solution Approach 1:
The system implements self-service by using the existing auxiliary audio port hardware without requiring any physical modifications or additional components. The protocol layer handles the complexity of packetization and data transmission over the audio channel, allowing the hardware to remain simple and cost-effective while the software manages the communication overhead.
Data Source
AI summary
A vehicle computing system comprising a vehicle auxiliary port and at least one controller. The controller configured to communicate with a nomadic device via a wired connection established between the vehicle auxiliary port and a nomadic device auxiliary port. The controller further configured to transmit data to the nomadic device over the wired auxiliary port connection. The data including one or more control commands for the nomadic device.