UWB Personnel Safety Management Solution for Hydropower Stations

I. Industry Status and Demand

        A Smart Power Plant builds upon automation by leveraging IoT technology and equipment monitoring to enhance information management and services. It provides a clear grasp of the power generation process, increases process controllability, reduces manual intervention, and collects process data accurately and promptly. This enables the scientific formulation of generation plans and the construction of a humanized factory that is energy-efficient, environmentally friendly, and comfortable. By applying VR, big data, personnel positioning, and other technologies to the industrial field, the Smart Power Plant facilitates on-site monitoring, accident prediction, and diagnosis. It achieves a leap from digitalization to intellectualization, transforming traditional operation and management models and shifting from manual decision-making to machine-like decision-making.

        The Smart Power Plant emphasizes both management and safety systems. Utilizing advanced technologies such as IoT, the Internet, and AI, it enables status monitoring and data collection at the equipment, control, and production supervision layers. This data is then fed into the central management core, achieving the ultimate goal of intelligent coordination in plant production. Current application demands and industry pain points for Smart Power Plants include:

        Pain Point 1: The daily inspection management for personnel in production areas is relatively outdated. Traditional inspections rely on manual registration at checkpoints for recording and control. Inspection information cannot be shared in real-time within departments, and management cannot grasp the real-time status of inspections across various locations, leading to missed inspections.

        Pain Point 2: The on-duty status of personnel in production areas cannot be quickly assessed. Traditional attendance methods, such as card swiping, are ineffective in supervising and statistically analyzing on-duty data and personnel distribution.

        Pain Point 3: Power plants conduct planned unit maintenance, requiring a large number of external contractors for tasks like cleaning, excavation, and maintenance. There is a lack of effective means to supervise and statistically track the safety management and working hours of these external personnel, posing significant safety risks and data inaccuracies.

        Pain Point 4: Current monitoring and management systems in power plants, such as video surveillance, personnel management, production management, and access control systems, operate relatively independently. Information exists in isolated silos, failing to provide emergency management platforms and comprehensive decision support for managers at all levels, resulting in low management efficiency.

        Hainan Shidian addresses the application challenges and pain points of Smart Power Plants by introducing a solution based on UWB wireless positioning technology. This solution precisely locates personnel within the plant, ensuring their behavior is controllable and their positions visible. Combining positioning base stations, tags, and other equipment, it provides functions such as global location display, real-time trajectory tracking, historical data playback, and positioning monitoring analysis. It supports the rapid setup of electronic fences for accident-prone areas and issues local and remote warning alerts for personnel approaching or entering hazardous zones.

II. Overall Solution Architecture

The system comprises UWB tags, UWB outdoor base stations, positioning engine software (C/S architecture), and a positioning application system. UWB tags and base stations communicate via UWB pulse signals. The base stations transmit received tag data via 5G networks or wired Ethernet to the LS1000 positioning engine for data analysis and processing. The processed precise location data is then transmitted to upper-layer applications through open API interfaces.

The system consists of the following:

• UWB Tags: Available in card-style and wristband-style, attached to personnel or assets. They periodically transmit UWB signals containing the tag ID.
• UWB Indoor Ceiling-Mount Base Stations: Communicate with positioning tags and relay information back to the positioning engine algorithm software.
• Positioning Engine Algorithm Software: Deployed on-premises, it collects underlying data and processes it through the positioning engine's algorithms to obtain the precise coordinates of the tags.
• Positioning Application Software: Can be deployed on-premises or in the cloud. This application-layer software implements basic functions like location display and trajectory playback, as well as business functions extended from location data, such as electronic fencing, intelligent inspection, attendance statistics, and video linkage.

 

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III. System Hardware

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UWB Tag

UWB Card-Style Electronic Tag WE-T241-C

¥309

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UWB Base Station

UWB Outdoor Wired Base Station WE-RA210-O

¥3,910

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UWB Tag

UWB Wristband/Helmet-Style Electronic Tag WE-T206-H

¥345

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IV. Solution Features

V. On-Site Installation Photos