Abstract: Technology of construction resource positioning in complex scenes is of great significance to large-scale hydropower project construction. Based on field tests and construction practices of Wudongde and Baihetan hydropower station in Southwest China, this paper focuses on different scenarios and different tasks with application of the location technologies of LBS, GPS/Beidou with real-time differential (RTK), and low-power Bluetooth (BLE). We construct a hybrid positioning technology model and a corresponding system that satisfy the needs of different scenarios, different job positioning accuracies, and different speeds of communication response. An electronic map based on GIS combined with spatial layout and structural characteristics is developed; the project area is divided into grids by the requirements of construction and project management. We develop a terminal-network-cloud system for onsite location, realizing multi-terminal refined, personalized and customized three-dimensional real-time dynamic management of the real locations of construction resources. This study shows that the digital and intelligent transformation of hydropower project construction management needs developing location technology and its support.

Key words: location technology, location elements, construction resources, terminal-network-cloud, hydropower project