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Measuring the allocation of control in 6 degree of freedom human-computer interaction tasks.

机译：测量6个自由度人机交互任务中的控制分配。

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摘要

Trajectory information can be analysed in both the time and space dimensions via a new metric called the M -metric. The M -metric is a measurement definition which quantifies the allocation of control across multiple degrees of freedom. Allocation of control is defined as the product of two components, the simultaneity of control and the efficiency of control, corresponding to the time and space dimensions respectively. The existing human factors, biomedical, and motor control literature serves as the foundation for the development of the M -metric. The M -metric has several limitations including dependency upon the chosen coordinate system, assumptions of optimal trajectories, and the lack of frequency domain analysis.; A six degree of freedom longitudinal virtual docking task experiment tested the M -metric's validity and usefulness. Results from the docking experiment showed that operators, rather than controlling all six degrees of freedom equally, allocate their control to the rotation and translation degrees of freedom separately, and switch control between the two groups. This switching of control is also a function of the input device and the allocation of control across all available degrees of freedom increases with practice.; Unlike a docking task, a tracking task specifies the time-space components of the required trajectory. A six degree of freedom longitudinal virtual tracking experiment was conducted to confirm the validity of the previous findings. Even under the conditions where equal allocation of control across all the degrees of freedom is required by the task, subjects in the tracking experiment still showed a preference to switch control between the translation and rotation degrees of freedom, though not as high as in the docking experiment.; Potential applications of the M -metric include evaluation of input devices, understanding of human motor control systems, and assessing neurological damage. To lay the groundwork for testing the M -metric as a possible diagnostic tool the docking experiment was re-run with elderly subjects. While results from the docking experiment show that elderly subjects show lower overall performance scores, no differences were found in the patterns of allocation of control across degrees of freedom.
机译：可以通过称为 M 度量的新度量在时间和空间维度上分析轨迹信息。 M 度量是一种度量定义，用于量化跨多个自由度的控制分配。控制的分配被定义为两个组件的乘积，即控制的同时性和控制的效率，分别对应于时间和空间尺寸。现有的人为因素，生物医学和运动控制文献为 M 度量的发展奠定了基础。 M -度量有几个限制，包括对所选坐标系的依赖，最佳轨迹的假设以及缺乏频域分析。六自由度纵向虚拟对接任务实验测试了 M 度量的有效性和有用性。对接实验的结果表明，操作员不是将所有六个自由度均等地控制，而是将其控制权分别分配给旋转和平移自由度，并在两组之间切换控制权。控制的切换也是输入设备的功能，并且在实践中，所有可用自由度上的控制分配都会增加。与对接任务不同，跟踪任务指定所需轨迹的时空分量。进行了六自由度纵向虚拟跟踪实验，以确认先前发现的有效性。即使在任务要求在所有自由度上均等地分配控制的条件下，跟踪实验中的对象仍然显示出偏好在平移和旋转自由度之间切换控制，尽管不如对接中的高。实验。; M 度量的潜在应用包括评估输入设备，了解人的运动控制系统以及评估神经系统损害。为了为测试 M -度量作为一种可能的诊断工具奠定基础，我们对老年受试者进行了对接实验。虽然对接实验的结果表明，老年受试者的整体表现得分较低，但在不同自由度上的控制分配方式上没有发现差异。

著录项

  • 作者

    Masliah, Maurice Robert.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Engineering Industrial.
  • 学位 Ph.D.
  • 年度 2001
  • 页码 158 p.
  • 总页数 158
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 一般工业技术;
  • 关键词

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