In-Vehicle Data Push Control for Audio-Video Device State Detection
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Solution Overview
Problem
In existing in-vehicle data push systems, data loss occurs because the audio/video device is out of operation before the vehicle system generates a shutdown broadcast, causing the push client to continue receiving data from the push server, which the user cannot perceive.
Innovation Solution
A method where the vehicle system generates an out of operation state notification message when the audio/video device is in an out of operation state, which is sent to the push client to stop data push between the push client and the push server, ensuring immediate cessation of data transmission and preventing data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the push client continues receiving data from the push server using the native shutdown broadcast mechanism, then the system maintains simple operation, but data loss occurs because the audio/video device is already out of operation
Solution Approach 1:
The system performs preliminary detection of the audio/video device operation state before the shutdown broadcast is generated. When the device is detected to be out of operation, the system proactively sends a stop instruction to the push client to cease data reception, preventing data loss before it occurs.
Solution Approach 2:
The system establishes a feedback mechanism where the operation state of the audio/video device is continuously monitored and fed back to the data push control module. Based on this feedback, the system dynamically adjusts the data push status, stopping reception when the device is non-operational and resuming when it becomes operational again.
2Ease of manufacture
If the system uses the native shutdown broadcast to stop data push, then the implementation is simple, but data loss occurs during the period between device shutdown and broadcast generation
Solution Approach 1:
Instead of waiting for the shutdown broadcast, the system performs preliminary detection of the audio/video device state. When shutdown is detected, it immediately sends a stop instruction to the push client, acting before the actual data loss can occur.
Solution Approach 2:
The system introduces an intermediary detection mechanism and control module that sits between the audio/video device and the push client. This intermediary monitors device state and mediates the data push process, sending stop/resume instructions to the push client based on device operational status.
3Reliability
If the push client stops data reception immediately when device is out of operation, then data integrity is improved, but additional detection and control mechanisms increase system complexity
Solution Approach 1:
The detection and control module serves multiple functions: it detects audio/video device operation state, determines data push status, sends stop/resume instructions to the push client, and manages the overall data delivery process. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The push client autonomously responds to stop and resume instructions from the control module, managing its own data reception state without requiring additional external control systems. The system self-regulates based on device operational status.
Data Source
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AI summary
A data processing method includes: in the case where an operation state of an audio/video device in a target driving device is an out of operation state, generating (S101, S203) an out of operation state notification message of the audio/video device; and sending (S102) the out of operation state notification message to a push client for stopping (S206) a data push between the push client and a push server using the out of operation state notification message.