Design and Implementation of Intelligent Digital Controllers with Self - Validating Sensors


The Transactions of the Korea Information Processing Society (1994 ~ 2000), Vol. 7, No. 12, pp. 3848-3854, Dec. 2000
10.3745/KIPSTE.2000.7.12.3848,   PDF Download:

Abstract

For the satisfying performance of a control system, design of a controller for the system which meets the required specifications and its supporting hardware that keep their functioning is important. Among the hardware of a control system, sensors are most vulnerable to malfunction. Thus it is necessary to keep track of accurate and reliable sensor readings for good controller performance. In case of sensor faults, they are detected by examining the sensor output values and the major values of the system, and then the types of the faults are recognized by the analysis of symptoms of faults. If necessary self-validating sensor values are synthesized according to the types of faults, and then they are used for the controller instead of the raw data.In this paper, a self-validating sensor is applied to the control of a flexible link system with the sensor fault problems in the light sensor module for exact positioning to show the applicability. It is shown that the digital controller can provide a satisfactory loop performance even when the sensor faults occur.


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Cite this article
[IEEE Style]
S. Y. Na and H. J. Bae, "Design and Implementation of Intelligent Digital Controllers with Self - Validating Sensors," The Transactions of the Korea Information Processing Society (1994 ~ 2000), vol. 7, no. 12, pp. 3848-3854, 2000. DOI: 10.3745/KIPSTE.2000.7.12.3848.

[ACM Style]
Seung You Na and Hee Jong Bae. 2000. Design and Implementation of Intelligent Digital Controllers with Self - Validating Sensors. The Transactions of the Korea Information Processing Society (1994 ~ 2000), 7, 12, (2000), 3848-3854. DOI: 10.3745/KIPSTE.2000.7.12.3848.