Autonomous, self organizing Sensor Networks for Process Monitoring
In this project, a robust and self organizing architecture for sensor networks is being developed for the process monitoring domain. The results will be directly applied to industrial manufacturing processes in tire production and reflow soldering. A sensor system suitable for these processes consists of statically mounted and flexible placeable sensors. Using sensors with a wireless communication provides the flexibility to easily adapt the network. After the deployment phase it is easily possible to optimize the sensor coverage or to provide additional sensing resolution at specified locations for calibration tasks only by placing additional sensors there.
In contrast to the cabled sensors, which have a constant power supply, the wireless sensors need to be powered by batteries. To increase the lifetime, energy harvesting techniques will be used in some setups. A further aspect to increase node lifetime is to reduce energy consumption. Usually the most power is needed for communication. To minimize the network traffic and thus power consumption, the sensor data will be pre-processed by the sensor nodes to minimize the size and number of the network packages.
Facing these challenges a new software architecture needs to be developed that is suitable for wired and wireless sensor nodes in the same way and which is easily implementable in industry processes.
To show the feasibility of this approach, a demonstrator will be created and, in further steps of the project, this sensor system will be used in a tyre production process and in a soldering plant operated by project partners.
This work is funded by the German Ministry of Education and Research (BMBF).
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