Informatization is the inevitable trend of economic and social development in today's world. It has become a powerful driving force for the rapid development of human society and a major development strategy for countries to realize modernization. Informatization is in a very important position in railway development, which is the strategic commanding height of railway industry development and the main symbol of modernization. As a major national construction project, high-speed railway has large investment scale, high technical standards and strict quality requirements. The application of construction project management information technology in its construction process can standardize the management process and improve the management level of railway construction. 1 information management of high-speed railway construction projects at home and abroad. Foreign high-speed railways have adopted a large number of information management in the construction process, including the bidding system of railway construction projects, the evaluation system of railway comprehensive construction projects, the comprehensive management system of railway construction projects, the digital railway comprehensive business website, the comprehensive design system of high-speed railway civil engineering, the railway construction monitoring system, and the comprehensive office system of enterprises. The high-speed railway construction in China hopes to use the project management information system for construction management from the very beginning. Since the end of 2004, some project management information systems at home and abroad have been investigated, hoping to form a unified high-speed railway construction project management information system software and platform through the integration of the two systems. In order to improve the information management level of China's railway engineering construction, the Ministry of Railways organized relevant departments to develop the "Railway Construction Project Management Information System" software, which has been applied in a small scale and popularized in an all-round way, playing a positive role in data acquisition and information management in China's railway construction process. The functional module of engineering construction management information system has been partially realized in the high-speed railways built and under construction in China. Since 2006, Nanjing Dashengguan Yangtze River Bridge Project has implemented video surveillance, touch screen query system for construction projects and network video conference system. In 2008, Beijing-Shanghai high-speed railway first proposed to set up a project dispatching command center in the high-speed railway, and successfully implemented the visualization management of project progress based on GIS. Compared with other high-speed railways, its informatization construction level and depth are in the advanced ranks. 2. Necessity of high-speed railway construction project management informationization 2. 1 The fundamental requirement for improving the management level of high-speed railway projects is high quality, complex technology and tight construction period, and project management is an important guarantee for the success of high-speed railway construction. Modern project management requires data management, taking data collection and processing as the basic work of daily management, combining quantitative analysis with qualitative analysis, and changing from relying on empirical judgment to relying on data scientific decision-making. With the rapid development of computer technology, its graphical operation interface, file storage, report printing and network communication have greatly improved the efficiency of project management. Computer application has become an important means of project management. At present, the application of computer in project management has developed from simple word processing in the early days to three different levels: information management, construction command and decision support. 2.2 Basic Digital Railway Construction Digital Railway is a new generation railway information system based on geographic information system (GIS), global positioning system (GPS), remote sensing (RS), information system, Internet of Things, virtualization, information integration and other technologies. , study the digitalization of China's railway infrastructure, mobile equipment and railway environment, and realize the comprehensive management and intuitive display of railway service resources and transportation resources. Digital railway has the characteristics of informationization, digitalization, intelligence, networking, virtualization, visualization and automation. The development of railway informatization is a huge, comprehensive, complex and arduous system engineering. Railway information infrastructure needs to be built and formed in the process of railway construction, because all railway infrastructure information and data are gradually accumulated and formed in the process of construction. If we don't pay attention to the collection, arrangement and structuring of infrastructure data and information in the early stage of railway construction and form a complete railway information infrastructure, it is impossible to build a digital railway. 3 High-speed Railway Construction Project Management Information Planning and Design According to the "Medium and Long-term Railway Network Planning" approved by the State Council, China will plan to build a fast passenger passage between provincial capital cities and large and medium-sized cities. The specific contents include the construction of high-speed railway1.2000 km, the planning of four vertical and four horizontal railway express passenger corridors and three intercity express passenger transport systems, with the speed target value above 200 km/h. As an important part of China's four vertical and four horizontal railways, the construction of high-speed railway network is a large-scale investment and high-tech project in the Medium and Long-term Railway Network Planning. In order to ensure its smooth construction, form an efficient, convenient, fast and safe passenger passage as soon as possible, and speed up the construction of China's high-speed passenger transport network, this paper designs the informatization of high-speed railway engineering construction, which provides reference for the development and construction of China's railway engineering construction information system. 3. 1 The goal of high-speed railway construction project management informatization depends on the rapid development of computer technology. The research on informatization of high-speed railway construction should make full use of modern high-tech fields, improve the scientificity and advancement of high-speed railway construction management, and ensure the timeliness, scientificity and efficiency of engineering construction headquarters at all levels. At the same time, it can directly and effectively supervise the safety production on the construction site, fully guarantee the safety of construction personnel, and fully mobilize the enthusiasm of sub-headquarters at all levels. 3.2 The principle of high-speed railway construction project management informatization (1) adheres to the technical policies of unified leadership, unified planning, unified standards, unified resources and unified management. (2) Follow advanced, mature, economical, applicable and reliable technical standards. (3) Fully meet the requirements of dispatching command management system of China's railway passenger dedicated line project and adapt to future development. (4) Fully consider the overall coordination with other related information systems to realize resource sharing. (5) Fully absorb and integrate the technical experience and achievements of railway engineering dispatching command management at home and abroad, combine integrated innovation with independent innovation, and independently develop and build an information system with independent intellectual property rights. (6) Take the strategy of overall planning, highlighting key points, rolling development and step-by-step implementation. 3.3 General Framework of High-speed Railway Construction Informationization In order to ensure the timeliness, scientificity and efficiency of engineering dispatching command of engineering construction headquarters at all levels, the General Command of High-speed Railway Construction should set up an engineering dispatching command center and build a set of dispatching command system for high-speed railway construction according to its management mode and organization. Engineering dispatching command center is the core of dispatching command management system. In the overall architecture design, the technical advancement and future scalability of the system are fully considered, and the maturity of the technology is considered to ensure the security and reliability of the system to the maximum extent. The local area network structure of the engineering dispatching command center is shown in figure 1. 3.4 High-speed railway construction project management information function The high-speed railway construction project management information system is mainly oriented to leaders, management decision makers and engineering construction dispatcher users. By using GIS electronic map as the platform, Internet as the channel, information management software as the core, and video conference and video monitoring system as the auxiliary, all construction data information of the whole line is finally integrated, summarized and analyzed to form various construction scheduling reports; The progress of the whole project is presented on the big screen of the project dispatching command center in the form of GIS electronic map. Its main functional structure is shown in Figure 2. 3.4. 1 The construction safety monitoring subsystem adopts intelligent video analysis technology to realize automatic video monitoring on the construction site, which can automatically find, identify and track the targets such as people, vehicles and designated objects in the picture, and automatically detect abnormal behaviors such as intrusion, staying, abandoning items, theft, counting and illegal driving. , and supports the extraction of video metadata, which is convenient for quick retrieval and analysis afterwards, and supports automatic switching of single channel and multiple scenes; Use the ID card with personnel information to realize personnel access control, automatic alarm recording, no cartoon obsolescence, and also support remote automatic card swiping; The settlement monitoring and alarm system, which integrates basic data management such as measurement, environmental adjustment, design and construction, has realized the functions of monitoring data management, on-site inspection, risk investigation, risk assessment, risk early warning, safety early warning, report submission and news release. , and can immediately grasp the production schedule and collect data. 3.4.2 Construction Project Management Information System establishes the database of engineering network plan in the process of engineering project construction, and realizes the compilation of engineering construction network plan, uploading and browsing the actual work progress; Establish the archives of land acquisition and demolition, realize the entry of demolition plan, demolition quantity and completed quantity, form the progress graphic report and periodic demolition report, and display it intuitively through the network plan; Through data statistics and analysis, the management of quality, supervision, materials, design and investment control can be realized. 3.4.3 Office OA system In view of the rapid development of office automation system technology in the process of high-speed railway construction and the huge number of management units and official documents, in order to improve the efficiency of internal office management, it is necessary to integrate office systems, establish an internal office instant messaging exchange platform, realize the automatic circulation of office information among management units at all levels, and establish an enterprise office intranet portal to realize online approval, issuance and electronic signing of all office processes within the company.
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