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In the era of the Internet, where does the power of informatization in the energy sector come from? How can we further accelerate the process of digital transformation in the power industry? The State Council's recent guidance on promoting the "Internet +" initiative has provided a clear answer.
Recently, Huang Haihui, Vice President of Strategy at Beijing Hezhong Shuangzhuang Technology Co., Ltd., highlighted that under the "Internet +" framework, there are vast opportunities for the integration of the Internet and the power industry, particularly for power grid companies. According to him, the deep integration of next-generation information and communication technologies—such as mobile internet, cloud computing, and big data—represents the core of the next wave of grid upgrades and industry development.
Compared to many other companies that are just entering the market, Huang believes that "smart terminals" and "miniaturization" are key trends for the entire industry, especially in B/S and C/S based information projects currently dominated by the State Grid. These areas represent a huge potential market. He emphasized that the power grid industry should deepen its integration with the Internet, using the Beidou system as a core driver for the informatization of China’s power grid and an important force for innovation and development in the sector.
Eliminating the “millimeter†blind spots in grid operations
Before the Beidou system was fully operational, China's power industry had no choice but to rely on foreign satellite navigation systems like GPS and GLONASS due to the lack of an independent satellite navigation system. This created significant security risks across various outdoor operations such as asset management, mobile fieldwork, line inspections, and GIS data collection.
As grid informatization continues to develop, the demand for precise location and mobile connectivity—like mobile operations, line inspections, and GIS data collection—is growing. Traditional manual methods of recording and entering data are proving inefficient, time-consuming, and error-prone.
In Huang Haihui’s view, while some grid operations already achieve 3–5 meter accuracy, the increasing expectations of grid customers for efficiency and information engineering have pushed the need for even higher precision—down to centimeters and millimeters.
Currently, grid companies like the State Grid use their own base stations to provide high-precision positioning within a range of 20–30 km. Another method involves ground-based enhancement networks. For example, setting up 5–6 reference stations in Beijing allows data to be collected, processed, and broadcasted via servers, then delivered to mobile stations through 3G or 4G networks. However, Huang believes that the "China Precision" satellite-based high-precision enhancement system is more cost-effective, accurate, and practical during the current phase of grid informatization transformation.
According to Huang, "China Precision" is China’s first globally competitive satellite-based augmentation service system, launched by Hezhong Shuangzhuang in June 2015. It provides enhanced services at three levels: sub-meter, decimeter, and centimeter accuracy. As part of the Beidou satellite navigation system, it now serves global grid users.
While the construction of Beidou ground-based augmentation systems is gaining momentum, the satellite-based system represents a critical technological gap in China. Currently, many users, including the State Grid, rely on foreign commercial systems, which raise concerns about information security and involve high costs. Huang stated, "The construction of 'China Precision' is not only a business need but also an industry and national requirement. As the first fully built and controlled global high-precision augmentation system by Chinese enterprises, 'China Precision' ensures full intellectual property rights and control, breaking international technological monopolies and safeguarding the security of national geospatial information."
In satellite navigation applications, higher accuracy leads to better results and user experience, especially in the power grid. The "China Precision" wide-area space-based augmentation system broadcasts differential data globally via L-band geosynchronous satellites, allowing high-precision signals to reach areas without ground-based coverage.
For instance, Hezhong Shuangzhuang’s "Power Mobile GIS Main Network Inspection System" is a main network inspection solution based on the "GeoSourceMobileGISITS" platform, designed specifically for power grid maintenance. The system uses a C/S architecture, consisting of a central communication control server, a monitoring terminal, and a client dispatch center. It integrates daily maintenance data from existing PMIS and PGIS systems, enabling efficient and unified management of power infrastructure.
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