Wireless Message Count Check for Vehicle Data Link Quality
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Solution Overview
Problem
Existing data transmission systems in vehicles and external communication networks face challenges in reliably and cost-effectively indicating the quality of wireless data transmission, leading to potential transmission errors and resource limitations that can impair data processing and connectivity services.
Innovation Solution
A method utilizing the periodicity of existing message signals to generate an indicator for data transmission quality by comparing message counts, ensuring that the number of transmitted messages matches a predefined reference count, thereby verifying the integrity of data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant communication channels are used to verify data transmission, then transmission reliability is improved, but manufacturing costs and installation space increase
Solution Approach 1:
The patent merges the quality indicator function into the existing single communication channel by utilizing unused message fields within the same data transmission protocol. Instead of adding redundant channels, the invention combines multiple functions (data transmission and quality indication) into a single channel, thereby improving reliability without increasing device complexity or installation space requirements.
2Measurement precision
If message count verification is implemented to detect transmission errors, then transmission quality monitoring is improved, but data processing complexity increases
Solution Approach 1:
The transmitting device generates and includes the quality indicator (message count information) automatically as part of the normal data transmission process. The receiving device simply compares the received message count with its own counter without requiring complex verification algorithms. This self-service approach enables precise transmission quality measurement while keeping processing complexity minimal, as both devices use straightforward counter increment and comparison operations.
3Reliability
If continuous transmission monitoring is performed, then data quality assurance is improved, but energy consumption increases
Solution Approach 1:
The quality monitoring is performed continuously as an integral part of the normal data transmission process rather than as a separate intermittent check. The message counters increment automatically with each transmitted and received message, and the comparison occurs naturally at each transmission cycle. This continuous monitoring approach ensures data quality reliability without significant additional energy consumption, as the monitoring actions are seamlessly integrated into the existing transmission workflow.
Data Source
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AI summary
The invention relates to the production of an indicator for specifying the quality of a wireless data transmission between a transmission device, such as a motor vehicle (10) for example, and a receiving device coupled thereto, such as a backend server (20) for example. In the process, a processing signal (V) is detected which can comprise one or more messages that can specify the state of a respective functional unit (11) of the transmission device (10). The messages are provided by the respective functional unit (11) at a specified frequency or with a specified regularity. A receiving device message counter value is then determined which indicates the number of messages transmitted to the receiving device (20). A check is then carried out in order to determine whether the receiving device message counter value matches a specified comparison message counter value, which is produced on the basis of the specified frequency, and the indicator for the data transmission quality is provided on the basis of the result of the check.