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From an adequate model of a system it might be possible to estimate its certain physical quantities that could not be measured directly or at a great expense. Usually, mechanical parameters, such as position and velocity are estimated by measuring only electrical signals. This concept is referred as "sensorless" and has the major benefit of saving costly external sensing elements, thus reducing...
IEEE 1588-2008 Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems has been introduced to provide high quality in-band clock synchronization in distributed measurement and control systems. We have been actively involved in the development of IEEE 1588 implementations for Linux on the x86 (PC) platform in the last years. During these years we have developed...
This paper investigates the effects of varying external load on sensorless plunger position estimation regarding solenoid actuators. We propose an improved technique capable of compensating these forces applied to the solenoid. Major advantage of the method is that both plunger position and external load can be simultaneously estimated, thus further improving robustness and extending the possible...
Run-time reconfiguration of digital signal processing systems is common in today's complex, non-linear and/or time-variant, distributed signal processing and control solutions. Reconfiguration transients caused by the run-time configuration change degrade the quality of service provided by solution, and they may also cause failures in the system. The paper investigates the transient properties of...
Complex control applications require a capability for accommodating faults in the controlled plant. Fault accommodation involves the detection and isolation of faults, and taking an appropriate control action that mitigates the effect of the faults and maintains control. This requires the integration of fault diagnostics with control, in a feedback loop. The paper discusses how a generic framework...
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