Wyniki 1-1 spośród 1 dla zapytania: authorDesc:"Piotr ŁEBKOWSKI"

EFFECT OF SIMULTANEOUS AND SEQUENTIAL USE OF KEYS ON THE CORRECTNESS OF ENTERING COMMAND STRINGS INTO DEVICES DOI:


  Introduction The problem of correct entering control signals into machines is present in all activities during which a person interacts with a machine. Due to the continually increasing level of automation and robotisation [2] of, inter alia, manufacturing operations, this problem seems topical and, taking into consideration the efforts made by companies to ensure a high quality of their products [3, 4], it can also be perceived as essential. In this paper, the authors focused on an analysis of the effect of one of the many factors that may affect the correctness of the signals being entered, i.e. on the effect of entering signals by simultaneous and sequential pressing of keys. The problem concerned occurs, inter alia, in the case of control panels on which it was impossible, e.g. due to the limited space, to place a separate key for each signal that can be entered. For this reason, some of the signals can be generated by pressing a number of keys in the right sequence or by pressing at least two keys at the same time. The analysis of the effect of the particular solution (sequential and simultaneous pressing of keys in order to generate a signal) on the correctness of the signals being entered is the key element of the considerations further on in the paper. This study does not concern situations in which simultaneous pressing of more than one button in order to generate a signal is required e.g. for safety reasons. Such safety measures are used in order to protect the person operating the machine e.g. by forcing them to press buttons with both hand so that neither hand is exposed to risk of injury as a result of the machine operation. The data necessary for conducting the analysis of the problem were collected by the authors through an empirical study the conclusions from which (as well as a detailed description of the study) have been presented further below. EFFECT OF SIMULTANEOUS AND SEQUENTIAL USE OF KEYS ON THE[...]

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