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Preventing infection in crowded public spaces while reducing stress
November 30, 2020
Hitachi, Ltd. has developed an experiential video solution to help prevent the spread of the novel coronavirus infection (COVID-19). The technology naturally raises awareness of physical distance and incentivize human behavior to maintain physical distance while enjoying images projected onto the floor around them that keeps pace with their movement. Highly precise sensors such as LiDAR*1 and ToF*2 cameras, are used to monitor the positions and distance between moving people in real time, without identifying them. The system is linked to spatial perimeter indicators, such as a visual sphere of moving objects that moves together with the person but disappears when the perimeter is broken. It is hoped that the solution will inhibit the spread of the coronavirus in public spaces where people congregate such as train stations, airports, large commercial facilities, and amusement parks, and thereby contribute to improving business continuity in the service sector. Further, the solution aims to reduce the stress in maintaining a physical distance by raising awareness in a fun and enjoyable way. Focusing on an era of “with-“ and “after COVID-19,” Hitachi will continue to optimize feedback methods using people flow measurements and analysis to develop incentivized human behavior solutions.
In this demonstration, images of fish are projected on the floor around visitors. The images keep pace with the person’s movement, creating a sense of fun and entertainment. However, when the distance between people become close and thus the possibility of infection arises, the fishes disappear, resulting in a less entertaining scene compared to that of a lower risk distance. Through such means, the behavior of a person to maintain an entertaining environment is naturally linked to behavior to maintain a safe distance from others. The demonstration is based on an assumed use case for an aquarium but the projected images can be adjusted to other scenarios and new images can be added depending on the intended use.
"Physical-Distancing Aquarium" is a high-precision projection mapping system with feedback from tracking systems, such as LiDAR and ToF sensors, which are free from privacy issues. For ease of implementation, IoT-standard specification-based system design with extendibility is adopted. As a result of the development, we can implement a revision of content with high frequency to support facilities’ concept promotions and event planning. Frequently changing the projection image also helps to maintain the stimulus, preventing the person from becoming accustomed to the image and thereby making the countermeasure to reduce the risk of infection obsolete.
For more information, use the enquiry form below to contact the Research & Development Group, Hitachi, Ltd. Please make sure to include the title of the article.