Signal Dating in Connected Objects via Reversible Embedding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current systems for data dating in connected objects require significant hardware and software complexity on receiving stations, leading to high implementation costs, even if the dating information is not used by the customer information system.
Innovation Solution
A process for generating a signal that combines data from connected objects with precise dating information using reversible operations such as frequential multiplexing, orthogonal codes, stéganographic multiplexing, or tattooing, allowing the dating information to be easily extracted at a later stage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If data dating is carried out at the digitization receiving stations with local synchronization devices, then precise dating accuracy is achieved, but hardware and software complexity increases significantly
Solution Approach 1:
The invention extracts the dating function from the receiving station and relocates it to the connected object itself. The connected object now carries dating information embedded in the signal, eliminating the need for complex synchronization devices at the receiving station while maintaining dating precision.
Solution Approach 2:
The invention introduces an intermediary approach where dating information is embedded within the signal itself rather than being generated by separate synchronization hardware. This mediator (embedded dating info) transfers timing data without requiring complex local synchronization infrastructure.
2Measurement precision
If receiving stations are equipped with synchronization devices for local time reference recovery, then dating precision is improved, but implementation costs increase significantly
Solution Approach 1:
The invention removes the expensive synchronization device requirement from the receiving station and transfers the dating functionality to the connected object, which already has access to time reference information. This extraction eliminates redundant hardware costs.
Solution Approach 2:
The invention replaces expensive, complex synchronization hardware with a simpler software-based embedding approach where dating information is encoded directly in the signal data, reducing hardware costs while maintaining functionality.
3Measurement precision
If receiving stations perform local dating operations, then dating accuracy is maintained, but device complexity increases even when dating information is not used by the information system
Solution Approach 1:
The invention creates a universal solution where the embedded dating information serves multiple purposes: it can be used by the information system when needed, and it simplifies the receiving station architecture regardless of whether the data is ultimately utilized. The same mechanism serves both precision dating and system simplification.
Solution Approach 2:
The connected object performs the dating function for itself by embedding its own timing information in the transmitted signal, making the receiving station self-sufficient without requiring active synchronization devices. The system serves itself through autonomous dating information embedding.
Data Source
Figure 1
Figure 2~5
AI summary
The invention relates to a method of generating a signal (S) intended to be transmitted in a network of connected objects, said method comprising: - a step of obtaining a first signal (S1) conveying a stream of data acquired by a connected object (OC) of the network; - a step of receiving a second synchronization signal (S2) comprising information (I) providing a date stamping of the first signal (S1); and - a step of generating a third signal (S) by combining according to a reversible operation the first signal (S1) and the second synchronization signal (S2).