Incremental Fault-Tolerant Wireless Transmission for Sensor Information in Industrial Environments

Summary

The PREVIEW wireless system aims to deliver available sensor information to the central server hosting the Advanced Predictive Service (APS) as soon as possible. For archival purposes, it is preferred to deliver sensor information exactly as it was recorded. Due to the expected interferences on the wireless channel, however, the wireless system employs a semantic, lossy compression and transmission scheme. This compression scheme allows to deliver timely approximate information to the APS, and it allows to transfer incremental updates later on, which improve precision for archival purposes.

Employing this compression and transmission scheme, the APS can decode sensor information incrementally, that is, it can begin to decore information before all information pertaining to one production cycle has been received. For each update, the wireless transmission protocol includes an error bound that allows the APS to estimate the quality of the information received so far. At each point in time during transmission, the degree of signal distortion is, thereby, within an error bound known to the APS.

We term the transmission protocol "Incremental Fault-Tolerant Transmission Scheme (INFLATE)"

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Country: DE
Address: Berlin
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