The Japanese Journal of Ergonomics
Online ISSN : 1884-2844
Print ISSN : 0549-4974
ISSN-L : 0549-4974
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Volume 3, Issue 4
Displaying 1-15 of 15 articles from this issue
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  • Human factors on manual control systems
    Y Hayashi
    1967 Volume 3 Issue 4 Pages 266-274,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.266
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    On the manual control system, boundary region between human system and machine system consists of displays to receptors and controls to effectors. Human performance in the tracking system which is governed by machine dynamics become one of the most difficult problems in the boundary region.
    This articles deals with such boundary region problems; instance, the relation of perceptual display method the human performance is made clear, what influence is given on human performance by the aiding and quickening is also discussed.
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  • Improvements of manual control systems by using of appropriate displays
    M. Iguchi
    1967 Volume 3 Issue 4 Pages 275-280,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.275
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    Characteristics of displays, which transmit information from machines to machine operators, have a great influence on psychological and physiological load imposed on the operators, controlability of machine and performance of the manual control systems.
    Improvement of the performance of manual control systems and the reduction of the physical work intensity of operators are possible by designing the display suitable for human characteristics.
    Making a geometrical condition of a display arrangement fit for physical properties of human operator and replacement of a data processing work requested for a stable control of the system from the human operator to a electronic device provided in the displays are effective method available for the improvements.
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  • The reduction of training time in manual control systems
    K. Yoshimoto
    1967 Volume 3 Issue 4 Pages 281-287,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.281
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    In this paper, manual control systems are classified into three control forms; i) sequentical control, ii) continuous tracking control and iii) control in the system in which state variables are limited, and the learning process of human operators in each control system analyzed. From these results some suggestions are obtained for the reduction of learning or training time. Especially in the third case, it is found that a human operator can almost perform optimal operations, that and it is possible to reduce the time necessary to obtain proficiency in the control, if he is informed of the optimal operation pattern beforehand.
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  • Human tarks & machine performance on man-machine systems
    S. Fujii, M. Okawa, K. Hashimoto, M. Hori, M. Mori
    1967 Volume 3 Issue 4 Pages 288-295,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.288
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    Human characteristics as compared with the machine performance were summarized and discussed as to the signal reception, control operation, information processing, endurability, reliability, communications as well as system efficiency and others. Stress is laid on the facts that every operator acts as a unit, that he has adaptability but is succeptible to strenuous, monotonous or critical state. Need of humanistic considerations was also emphasized.
    The mechanization and automation of the system task should be promoted on the basis of a wide vision for safer, effective dut not monotonous and more “human” tasks.
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  • Literatures on manual control systems
    Y. Hayashi
    1967 Volume 3 Issue 4 Pages 297-300
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.297
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  • Human factors on the manual control systems
    T. Ishimatsu
    1967 Volume 3 Issue 4 Pages 301-308
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.301
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  • Some consideration on pilot-induced oscillations
    K. Miyajima
    1967 Volume 3 Issue 4 Pages 309-318,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.309
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    Pilot induced oscillation of a stable second order system is investigated as an instability that involves the closed loop consisting of the human pilot, the control system and the controlled element.
    Transfer functions of the human pilot and the control system are assumed. Nondimensionalized closed loop gains on the instability boundary are used as the extent of the instability.
    Fixed base simulator tests are conducted and the experimental results are compared with the results of theoretical analysis.
    These results seem to offer good insight into the phenomenon of the pilot induced oscillation.
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  • Effects of the tunnel illumination on the physiological reactions of car-drivers
    A. Okubo
    1967 Volume 3 Issue 4 Pages 319-326,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.319
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    Physiological reactions during the tunnel driving under various illumination conditions were studied to assure the safe driving. Heart rate of the driver increased by 60-80% of the resting level while driving through the tunnel.
    If the tunnel lights were experimentally turned off but immediately put on again, no significant increase of heart rate was observed. Heart rate increase was as low as 10-20% if the switching-off of the lights was short and had been expected.
    Unexpected turning off of the illuminaton some-times caused abnormal rise of heart rate, accompanying inadequate driving performances. It was concluded that the poor illumination, abrupt change of the brightness or lack of emergency power supply are relevant to higher accident rate and should be avoided.
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  • Transient characteristics and frequency characteristics in human tracking behavior
    E. Masuyama
    1967 Volume 3 Issue 4 Pages 327-334,I
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.327
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    The main purpose of the paper is to investigate whether human control characteristics are invaiable, even though wave forms as target vary. Step waves or sinusoidal waves (0.51-4.47cps) were tracked by 6 subjects with an effort to nullify the error.
    Amounts of training in step waves and sinusoidal waves as targets are matched according to experimental design. Average response curves are computed from both of step response and sinusoidal responses in accordance with K. Izawa's method (1964), and vece versa.
    Consequently, in both of transient characteristics and frequency characteristics, the sinusoidal response is quicker than the step response. Human control characteristics are relatively invariable, even though wave forms vary.
    In transient characteristics, the step response transformed from sinusoidal response is quicker than the original step response, but the former is not so stable as the latter. In frequency characteristics, however, the transformed sinusoidal response is more monotonic than the original sinusoidal response.
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  • Erratum
    1967 Volume 3 Issue 4 Pages 334a
    Published: 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.4_334a
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  • Erratum
    1967 Volume 3 Issue 4 Pages 334b
    Published: 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.4_334b
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  • Erratum
    1967 Volume 3 Issue 4 Pages 334c
    Published: 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.4_334c
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  • Erratum to : C.C.F
    1967 Volume 3 Issue 4 Pages 334d
    Published: 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.4_334d
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  • Erratum
    1967 Volume 3 Issue 4 Pages 334e
    Published: 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.4_334e
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  • Summaries of panel discussions at the 8th Meeting of J. E. R. S.
    1967 Volume 3 Issue 4 Pages 335-346,II
    Published: October 30, 1967
    Released on J-STAGE: March 11, 2010
    DOIhttps://doi.org/10.5100/jje.3.335
    JOURNAL FREE ACCESS
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