Car-to-X Communication Device Message Verification Feedback
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Solution Overview
Problem
Conventional car-to-X communication devices discard re-received messages, leading to a lack of information about the original messages emitted by the communication device, which complicates verification and plausibility checks, and may result in erroneous message dissemination and resource inefficiency.
Innovation Solution
A communication device that processes re-received messages to verify if they contain a confirmation of the originally transmitted message, allowing external entities to re-emitting verified messages and performing plausibility checks, thereby preventing erroneous message dissemination and ensuring message authenticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication device processes re-received messages to verify message authenticity, then message verification capability is improved, but device complexity increases
Solution Approach 1:
The communication device utilizes feedback from re-received messages to verify message authenticity. When a message is re-transmitted by another device, the original device receives it back and checks whether it matches the originally sent message, creating a feedback loop that confirms message integrity without requiring complex external verification systems.
Solution Approach 2:
The communication device performs self-verification by comparing re-received messages with its own transmitted messages. This self-service approach allows the device to verify message authenticity using its own resources without requiring additional complex verification infrastructure, thereby improving reliability while minimizing device complexity.
2Measurement precision
If the communication device performs plausibility checks on transmitted messages, then message accuracy is improved, but processing time increases
Solution Approach 1:
The communication device performs plausibility checks on messages before transmission. By conducting verification in advance, the device ensures message accuracy is maintained while the processing time is distributed efficiently, preventing errors from propagating through the network and reducing the need for corrective re-transmissions.
Solution Approach 2:
The device creates and compares copies of transmitted messages when they are re-received. This copying mechanism allows for accurate verification of message content without requiring complex real-time analysis, maintaining message accuracy while keeping processing time manageable through simple comparison operations.
3Productivity
If re-received messages are discarded, then resource efficiency is improved, but information availability deteriorates
Solution Approach 1:
The communication device uses re-received messages for self-verification purposes rather than discarding them. By utilizing these messages to confirm the authenticity of its own transmissions, the device maintains resource efficiency while gaining valuable information about message delivery and network behavior, thus preventing information loss.
Data Source
AI summary
A communication device for communication in a car-to-X communication network, including a transceiver device, which is configured to emit a first message to a further communication device via the car-to-X communication network, wherein the transceiver device is configured to receive a second message from the further communication device; and a processing device which is configured to process the second message to identify whether the second message contains a version of the first message, and wherein the processing device is further configured to handle the message contained in the second message as confirmation of receipt of the first message by the further communication device.