News from Daxing District Converged Media Center Recently, at Beijing Tianji Technology Co., Ltd. (hereinafter referred to as "Tianji Technology") located in the Daxing Economic and Technological Development Zone, a batch of intelligent terminals for digital and intelligent construction supervision is being prepared for shipment to Qinghai, where they will soon be put into use in the construction of the Golmud Nanshankou Pumped Storage Power Station. As a national high-tech enterprise focusing on Beidou smart engineering applications,Tianji Technology takes "Beidou + intelligent construction" as its core and, through technological integration and model innovation, injects new momentum into the digital and intelligent upgrading of the infrastructure industry.

    Beidou Satellite Navigation SystemAs an important national spatiotemporal infrastructure, its high-precision spatiotemporal information technology provides key support for engineering construction. At Tianji Technology,the reporter saw the company's self-developed Beidou high-precision positioning terminal, which, combined with RTK (real-time kinematic) technology, can achieve centimeter-level accuracyand is widely used in earthwork, pavement paving, bridge erection and other scenarios, becoming a "navigator" for precise operation of construction machinery.

    Since its establishment in 2017, Tianji Technology's technological development has evolved from single Beidou positioning to multi-technology integration.In the early days, it focused on the application of Beidou in engineering surveying to solve the problems of low efficiency and insufficient accuracy of traditional surveying. With the development of IoT and big data technologies, it launched a construction process management system to achieve real-time data measurement, reading and analysis. In recent years, it has introduced AI, BIM, digital twin and other technologies to drive construction management toward intelligence and automation.

    Tianji Technology's construction cases showthat the airport runway unmanned paving system achieves automated operation through Beidou spatiotemporal information technology, increasing construction efficiency by more than 30%. The "unmanned intelligent rolling system" used in water conservancy and hydropower projects improves efficiency by 20%–30% compared with traditional manual rolling, significantly enhances compaction uniformity, and avoids under-compaction or over-compaction. In addition, in the safe operation and maintenance of high-risk projects such as slopes and dams, Beidou spatiotemporal information technology collects displacement and settlement data in real time, issues timely alarms when anomalies are detected, provides technical support for disaster warning and emergency response, and effectively improves the safety of project operation and maintenance.

From "Spot Checks" to "Full Monitoring"

Digital management helps make concealed works transparent

    In traditional construction processes, concealed works such as foundation and substructure construction have long been a difficult point for quality control in the industry because they rely on manual inspection and paper records.By integrating Beidou positioning, IoT sensors, BIM (Building Information Modeling), AI and other technologies, Tianji Technology has built a digital management platform for concealed works, making the entire process from construction to acceptance transparentand providing owners and supervision units with a basis for real-time oversight.

    Taking highway construction as an exampletraditional compaction degree testing relies on manual sampling, which is inefficient and yields incomplete data; Tianji Technology's Beidou intelligent system can monitor the trajectory, speed and number of compaction passes of road rollers in real time, ensuring that every section of subgrade meets design standards, and automatically collects data such as compaction degree and flatness, displaying them graphically on the terminal to assist operators in standardized operation.

    In piling projects, the Continuously Operating Reference Station (CORS) system is used toimprove positioning accuracyto the millimeter level; data such as pile position, depth and inclination are uploaded to the cloud platform in real time, and project managers can view 3D construction models on their mobile phones.In a project in Xiong'an New Area, China Construction Third Engineering Bureau used this system to achieve coordinated operation of more than 200 piling machines, shortening the construction period by 25%.

    Similar scenarios extend to water conservancy and hydropower dam projects. Tianji Technology's "intelligent rolling system" collects data in real time through Beidou terminals and sensors installed on construction machinery and dynamically compares them with design indicators, driving the transformation of concealed works from a "spot-check model" to "100% full-process monitoring."

From "Experience-Driven" to "Data-and-Intelligence-Driven"

"Smart Engineering" reshapes the underlying logic of infrastructure

    Luo Shujiang, founder and general manager of Tianji Technology, introduced that in the infrastructure field, Tianji Technology is reconstructing the underlying logic of unmanned construction with the "smart engineering" model—the high-precision spatiotemporal information technology of the Beidou system is the "eyes" of unmanned equipment, while the digital information platform is the "brain."Through deep integration of Beidou spatiotemporal information, IoT, BIM and other technologies, Tianji Technology has built a digital thread covering the entire life cycle of "design—construction—operation and maintenance," driving the industry's transformation from "experience-driven" to "data-and-intelligence-driven."

    It is understood that its big data management platform can generate detailed reports based on construction data collected by Beidou, helping owners and construction units optimize resource allocation and reduce costs.According to statistics, under this model, project profit margins can increase by 5–8 percentage points and the safety accident rate can drop by 60%, which is regarded as "a fundamental change in the industry's production relations."

    In Daxing, Beijing,Tianji Technology's products have been applied to the construction of the Beijing-Xiong'an Intercity Railway and the settlement monitoring of Beijing Daxing International Airport. At present, Tianji Technology has formed a core product system covering soft foundation treatment, pile foundation treatment, pavement construction, earthwork construction, online safety monitoring and other areas, widely used in highways, railways, water conservancy, airports, energy, housing construction and other fields. Typical projects include Rizhao Jiaofa, Wuhan Jiaotou, and the Jiangxiang Reservoir Dam, among others.

    "In the future, we will continue to use technological innovation to drive high-quality development of digital and intelligent empowerment in engineering construction and operation and maintenance, and contribute more scientific and technological strength to the new quality productive forces of infrastructure," said Luo Shujiang. From precise positioning to full-cycle management, from single-point breakthroughs to model reconstruction, Tianji Technology, with Beidou spatiotemporal information technology as its fulcrum, is leading a new chapter in the digital and intelligent transformation of the infrastructure industry.