Accurate and comprehensive information data collection is the basis of intelligent transportation system. Intelligent traffic supervision visualization builds a "Skynet" in the park through the road monitoring series in the park, and builds a series of system maintenance means such as signal light control, intersection car detention monitoring and video monitoring. To some extent, it can solve the traffic problems after the park is completed. Through HT visualization, we can fully control the traffic situation and find traffic problems in time.
Revenue data such as traffic volume of the bridge on that day were displayed by 2D panel, and an internal and external double-layer feedback mechanism was established. With the help of Hightopo visualization technology, managers can quickly check the total benefit feedback, total investment, the number of people crossing the bridge that day and the toll income of Greater Bay Area's operation business on one screen by clicking the "Revenue" button on the left. The right panel shows the trend of economic drive through line charts, which is convenient for operators to evaluate; The comparison between traffic and total revenue is helpful for operators to master business trends and improve operational efficiency.
The overall design of the intelligent operation mode of the station is carried out, and the visualization platform of Web 3D high-speed railway station is realized. BIM three-dimensional modeling integrates data and text on a unified platform, and combines the spatial position and related attributes of objects in the real world with GIS to provide technical support for spatial decision-making and realize visual expression.
The traditional station information transmission is not timely, there is delay, and the processing process is slow, which can not effectively eliminate these problems. The system can freely set alarm types according to the situation, such as temperature monitoring alarm for people entering and leaving high-speed railway station, detection location and detection time of contraband alarm, etc. Problems can be stopped in time to effectively prevent potential safety hazards.
Read the relevant data in the server, obtain the historical data of subway passenger flow in and out of the station, and calculate and predict the passenger flow in and out of the station in advance according to the passenger flow data of different time periods, weeks and months and according to different weight ratios. On this basis, we can reasonably dispatch staff according to the predicted passenger flow, adjust the security inspection channel at the subway entrance, and choose a reasonable scheme to deal with the high and low peak passenger flow periods of the subway station to help the subway station operate smoothly.
① 3D visualization. Digital twinning breaks the traditional mode of integrating architectural information through plane drawings, and maps the architectural model of the physical real world through 3D modeling technology. It can realistically restore the building structure, piping system, ventilation and air conditioning system, elevator system, safety alarm system and so on. Subway station, covering all geometric, material and state information at the same time.
② the whole life cycle. The information integration of digital twins from planning and design to construction to operation and maintenance ensures the integrity and consistency of data and runs through the whole life cycle of subway stations. It improves the disadvantages of separate storage of design and construction stage information and operation and maintenance stage information in the traditional mode, and reduces the maintenance cost.
③ Predictive analysis. The introduction of digital twinning technology provides a basis for forecasting decision-making and analysis. Use sensors to monitor key data of high-power or inflammable and explosive dangerous goods; With the help of deep learning algorithm, the collected passenger behavior images can be analyzed and monitored; According to the configuration of ventilation and air conditioning system and the data collected by sensors, the thermal comfort of the station is analyzed and the energy consumption is predicted.
1) visualization of airport operation and maintenance management
Including 3D panoramic view of the airport, apron monitoring, aircraft position analysis, radar range visualization and other functions to help managers control the overall situation and ensure the operation and management of the airport.
2) Visualization of flight operation process
With Daxing Airport as the center, display the relevant national flight navigation conditions and support the visual analysis of various elements in flight plan implementation; Provide data guarantee for the safe operation of flights and improve the efficiency of route planning; Provide management decision support for airport arrival and departure sequencing and assist the manager.
3) Emergency command and dispatch
Data analysis combined with the change of airport flight flow and the utilization of resources can realize the intelligent alarm function of airport flight flow forecast, aircraft delay, peak forecast and early warning of large-scale flight delay events, which provides favorable support for the optimal utilization of airport resources. It can also assist all linkage units to deal with emergencies and provide managers with timely and correct emergency decisions.
With the increasingly complex road traffic environment, the traditional road management methods and the reduction of accident pressure can no longer meet the needs of the new situation. It is an inevitable requirement to transform and upgrade the backward traffic management mode and strive for combat effectiveness from scientific and technological informationization.
Intelligent transportation system improves the efficiency of urban traffic management and saves human resources; Effectively alleviate the problem of urban road congestion; It reduces the incidence of urban traffic accidents, reduces casualties and economic losses, and promotes the construction of a safe and harmonious city.
With the goal of building a national first-class intelligent transportation project, driven by scientific and technological innovation, guided by practical services and pursued by application results, the park has made every effort to promote the construction of a high-standard "intelligent transportation system in the park" and embarked on an intelligent road of road traffic management that conforms to the actual situation of the jurisdiction.