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As the population of modern society ages, accidents involving the elderly are increasing and there is a shortage of caregivers. Care robots are currently being developed, but they are not yet widely used. One of the reasons for this is that complex systems with numerous sensors are costly and require substantial maintenance. Another reason is that...
Contexts in source publication
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... a certain degree of shock is required, but presenting the information in such a way that the user does not feel a sense of unease or discomfort is also necessary. Warnings displayed in red letters and an announcement through a speaker to stop are alerts designed to reliably convey the presence of an anomaly without causing a sense of unease. Fig. 8 shows an example of what is displayed on an actual interface screen while the user is sitting down. Fig. 8(a) shows what is displayed on the screen while the user is sitting down normally. The robot, user, and chair are drawn in black, and the user is shown in a sitting posture. The user can intuitively understand that the robot ...
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... not feel a sense of unease or discomfort is also necessary. Warnings displayed in red letters and an announcement through a speaker to stop are alerts designed to reliably convey the presence of an anomaly without causing a sense of unease. Fig. 8 shows an example of what is displayed on an actual interface screen while the user is sitting down. Fig. 8(a) shows what is displayed on the screen while the user is sitting down normally. The robot, user, and chair are drawn in black, and the user is shown in a sitting posture. The user can intuitively understand that the robot detects the user is sitting down normally. The red arrow indicates the downward movement of the armrest. How much ...
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... How much red the arrows are filled with red indicate the height of the armrest; as the armrest moves up, the red appears to fill the arrow upward, and as the armrest moves down, the red appears to fill the arrow downward. This provides valuable information on the robot's current movement and by how much the user can expect it to move down. Fig. 8(b) shows what is displayed on the screen when an anomaly occurs while the user is sitting down. The red arrow indicates that the armrest will return to its highest position. This allows the user to visually and intuitively understand how need to respond to the robot's next operation. The red warning text at the top of the screen, which is ...
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... on the screen when an anomaly occurs while the user is sitting down. The red arrow indicates that the armrest will return to its highest position. This allows the user to visually and intuitively understand how need to respond to the robot's next operation. The red warning text at the top of the screen, which is not displayed in the normal state (Fig. 8(a)), allows the user to easily understand that it is an anomaly. The speaker can inform the user of the timing of the robot's next operation by saying "It has stopped" when the robot stops and by counting down before the robot starts to raise or lower the armrest. In addition, because the robot will stop and return to its original ...
