English 
Hitachi, Ltd. (Hitachi) and Hitachi Plant Construction, Ltd. (Hitachi Plant Construction) have developed a new Risk and Hazard Prediction (RKY) support system that utilizes the next-generation AI agent “Frontline Coordinator – Naivy” (Naivy) to enhance on-site safety through risk prediction support. This system is a concrete use case example of the On-site Safety Enhancement Solution, and improves the comprehensiveness and realism of information that have been issues with RKY activities using traditional paper and whiteboards. By realistically recreating the site in a metaverse space and using Naivy, the core component, to instantly analyze and extract similar past cases, the system not only verifies safety procedures and visualizes dangerous areas, but also visualizes potential risks and optimal safety measures for each site in an easy-to-understand manner for workers. This creates an environment where workers can proactively identify risks specific to their own site and consider high-quality risk countermeasures. Hitachi Plant Construction has conducted multiple demonstration experiments using this system at a customer’s substation, and as a result, it has been found that safety awareness among workers has improved and the time required for RKY activities has been reduced by approximately 20%, confirming that it is possible to achieve both safety and efficiency.
Going forward, Hitachi and Hitachi Plant Construction will further evolve Naivy based on the knowledge and know-how they have accumulated to improve on-site safety, as well as new domain knowledge gained through collaboration between workers and Naivy. By promoting the use of on-site domain knowledge and positioning Naivy as a group of applications that embody Lumada 3.0, the company will deploy it in industrial fields such as construction, power generation, railways, manufacturing, and maintenance. This will contribute to improving the work efficiency and well-being of frontline workers and realizing safe workplaces for everyone.
Part of the results of this research will be exhibited at CEATEC 2025, which will be held at Makuhari Messe (Chiba City, Chiba Prefecture) from October 14th to 17th, 2025.
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In industrial sites, the workload is increasing due to a decline in the workforce and skilled workers. Ensuring workplace comfort and operational efficiency, as well as ensuring safety to prevent accidents and disasters, are major social challenges in enhancing business continuity. 日立 has developed Naivy and utilized it in facility management sites to help reduce the psychological burden of on-site work and improve operational efficiency. Meanwhile, enhancing risk and danger prediction (RKY) activities is essential to instill a safety culture and prevent workplace accidents. However, traditional RKY activities are primarily conducted using paper or whiteboards, with limited use of past accident examples and risk information. This makes it difficult to share potential risks and optimal safety measures tailored to each workplace. This leaves workers vulnerable to oversight or misconceptions. To address these issues and improve workplace safety and business continuity, an environment was needed in which everyone could accurately grasp workplace risk information and workers could proactively consider work safety.
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