Interfacing with Adaptive Systems
René Ahn,
Emilia Barakova,
Loe Feijs,
Mathias Funk,
Jun Hu,
Matthias Rauterberg
Issue:
Volume 2, Issue 4, August 2014
Pages:
53-61
Received:
13 August 2014
Accepted:
25 August 2014
Published:
10 September 2014
Abstract: We cast a design view on the interactions that occur when humans face (interconnected) adaptive systems. As humans are also adaptive, the combined behavior of such systems and humans can exhibit various phenomena that are especially of concern to designers of adaptive systems dealing with the inherent complexity of systems, systems’ interfaces, interconnectivity, and other design factors. Based on examples of interactions between humans and systems at different levels of complexity, we propose a hierarchical taxonomy of increasingly complex challenges that system engineers will encounter when designing adaptive systems. Among adaptive systems, the taxonomy distinguishes closed and open systems, embodying processes that are unaware or aware, and finally, friendly and hostile. This taxonomy can be of use in designing these systems and their interfaces, as it helps to categorize the information needs of users. In fact, systems at various levels in the hierarchy need to offer certain cognitive affordances for users to operate these systems successfully. We illustrate how complex the information needs of users in these different situations can be, and formulate emerging design research questions. These could be of particular interest to designers who create intelligent systems, products, and related services in a societal context.
Abstract: We cast a design view on the interactions that occur when humans face (interconnected) adaptive systems. As humans are also adaptive, the combined behavior of such systems and humans can exhibit various phenomena that are especially of concern to designers of adaptive systems dealing with the inherent complexity of systems, systems’ interfaces, int...
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Positioning Control System with High-Speed Starting and Stopping for a DC Motor Using Bang-Bang Control
Hiroki Shibasaki,
Takehito Fujio,
Ryo Tanaka,
Hiromitsu Ogawa,
Yoshihisa Ishida
Issue:
Volume 2, Issue 4, August 2014
Pages:
62-70
Received:
17 August 2014
Accepted:
6 September 2014
Published:
20 September 2014
Abstract: This paper proposes a positioning control system with high-speed starting and stopping for a DC motor using bang-bang control. The control system of the proposed method continuously operates from the bang-bang control to proportional-integral-derivative (PID) control. The bang-bang control controls the equipment for high-speed starting and stopping. However, torque disturbances in the equipment may prevent the target-value response from stopping at a precise point. Therefore, we introduce a switching control system, which operates on the basis of the velocity signal. The proposed system includes various design factors, such as calculation of the switching time of bang-bang input and a method for continuous operation from the bang-bang control to PID control. Theoretical analysis describes the design details of the proposed method. Simulation and experimental studies show the results of various cases to indicate the effectiveness of the proposed method.
Abstract: This paper proposes a positioning control system with high-speed starting and stopping for a DC motor using bang-bang control. The control system of the proposed method continuously operates from the bang-bang control to proportional-integral-derivative (PID) control. The bang-bang control controls the equipment for high-speed starting and stopping...
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