This work’s central topic is a real-time environment for fully automated microscope-based applications within the field of the life sciences. Here - among other things - the complex processes of living cells and tissue are to be monitored, examined and modeled. To obtain an optimal insight into the intra- and intercellular processes, a variety of different parameters have to be considered in special and timely resolution. Besides sensor-based methods, the versatile optical measuring techniques play a central role.
The presented work proposes a generic, electronic control concept that enables the modular integration of different - in principal autarkic - components into a comprised system and – at the same time - ensures the timely correct operation of all system components. Based on a novel light-microscopy platform the concept enables the setup of modular microscope-based analysis systems, in which all devices within the system (e.g. microscope, illumination devices, cameras of laser scanning devices) are operated fully synchronized to one another. The modularity of the concept allows the integration of further components e.g. for automatic probe placement or for sensor-based characterization of cellular samples.
A central element of the control concept is the hardware-based synchronization of all system components by means of a specially designed real-time platform. On a real-time basis of 34µs this hardware achieves timely deterministic control of user defined experiment protocols. Moreover, by defining adequate dependencies the execution of protocol commands can be linked almost arbitrarily to hard- as well as firmware-based system states. Therefore, depending on the experiment protocol, different masters of synchronization can be selected during run-time (multi-master-system) so that system idle times can be minimized. In addition to the control of the deterministic behavior, the protocol flow can be controlled by utilizing protocol properties such as loops or conditional execution of protocol blocks. This way, the system behavior can be adapted to changing requirements and constraints during run-time. With the possibility to control deterministic protocol parts on one side and the manifold opportunities of adaptation during run-time on the other side, the proposed real-time platform builds the basis for microscope-based machine-vision systems – up to our knowledge, for the first time worldwide.
Conducting several test-applications the validation of the functionality and the system behavior verify the control concept as well as the correct behavior of the hard- and firmware of the real-time platform. Measurements of the execution times of all time critical protocol commands verify the performance within the targeted time base and - at the same time - provide the basis for the optimization of user defined experiment protocols prior to execution.
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This work’s central topic is a real-time environment for fully automated microscope-based applications within the field of the life sciences. Here - among other things - the complex processes of living cells and tissue are to be monitored, examined and modeled. To obtain an optimal insight into the intra- and intercellular processes, a variety of different parameters have to be considered in special and timely resolution. Besides sensor-based methods, the versatile optical measuring techniques p...
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