1. Background of smart construction site
my country's economic development is moving from the traditional extensive high-speed growth stage to a high-efficiency, low-cost, sustainable medium-to-high-speed growth stage. With the increasing complexity and volume of modern buildings, the content of construction site management is increasing, and the technical difficulty and requirements of management are constantly increasing. The traditional construction site management model is increasingly unable to meet the management and development requirements of modern construction enterprises in terms of speed, reliability and economic feasibility.
As the "cell" of enterprise information construction, digital construction is becoming more and more important in terms of intelligent collection of data, empowerment of management processes, and assistance in scientific decision-making. The characteristic smart construction site came into being. At present, the construction of smart construction sites is in full swing, but the reality is that engineering construction is far from reaching the stage of wisdom, and more information management is realized through digital means. When the effective data stored in information management reaches a certain level, coupled with successful Algorithms form a "strategic command platform" for intelligent judgment and decision-making, then the era of smart construction sites will truly come.
2. Smart construction site development environment
Technical Architecture: Microservice
Development Language: Java
Development tools: Idea
Front-end framework: Vue
Back-end framework: Spring Cloud
Database: MySql
Mobile terminal: UniApp
3. Smart construction site construction framework
The smart construction site application system includes on-site data collection layer, transmission layer, processing layer, application layer, etc., and is connected to the existing business management system of the enterprise to realize centralized display and analysis of data and assist scientific decision-making.
Acquisition layer: make full use of BIM, Internet of Things and other advanced information technology means to adapt to the requirements of the site environment, solve the problems of low efficiency and untimely data collection on the construction site, and improve the real-time performance, accuracy and authenticity of data acquisition.
Transport layer: The existing application systems are connected to the platform in the form of partial integrated management and single sign-on, so as to realize the extraction of relevant business key data and provide them for application and analysis at the processing layer.
Processing layer: Summarize and analyze the extracted business data, report data, and IoT data to form visual chart data.
Application layer: Classify business data into different functional modules for management according to the dimensions and details of actual management, which is convenient for users to query and analyze.
4. Smart construction site construction content
1. Construction of production command center
Establish enterprise-level and project-level production command centers, deploy smart construction site management platforms in different levels, and use Internet of Things and other related technologies to push production data to the project production command center in real time. After the background data is analyzed and processed, it will be displayed on the large screen The production data and monitoring images of the smart construction site management platform are used by the command center personnel to comprehensively study and judge the problems existing in the on-site management, and feed back to the relevant responsible persons through the digital command and dispatch system to urge them to rectify and improve, effectively improving the level of project background management and control.
2. Smart construction site management platform
At the project level, establish a unified project-level smart construction site management platform. Through the Internet of Things technology, the actual production, safety monitoring and application data of the project will be centralized, unified, correlated and summarized on the platform for daily office work and shift meetings of the project. , management analysis, decision-making and judgment provide powerful information data support and basis; use the Sovit3D visualization platform, based on BIM+GIS technology, to visually display the completion of the project progress with a 3D model, and to predict the progress of the construction in advance by comparing the progress plan with the bar chart , Intervene in lagging risk projects as soon as possible to ensure the stable completion of the project progress; single-sign-on production management, safety monitoring, digital command, knowledge management and other business systems solve the management problems of multi-entry business systems and improve work efficiency and convenience.
At the enterprise level, Numerical Map makes full use of modern technical means such as cloud computing, Internet of Things, and mobile Internet, standardizes data interface standards, and aims at enterprise construction project business management to integrate, analyze, and summarize production data of various project-level smart construction site management platforms , forming an enterprise-level information-based supervision cloud platform that presents the overall production, marketing, distribution and other information of each project of the enterprise, and centrally supervises the progress of the project and the completion of the output value, and directly enters the project level to view the detailed production data of lagging projects , and issue management instructions through the digital command and dispatch system to strengthen the enterprise's control over the project.
3. Online monitoring information platform
As a unified safety monitoring information platform for construction projects, the system aims to build an open, integrated and collaborative information platform, integrating tunnel surrounding rock monitoring, bridge pier settlement monitoring, deep foundation pit monitoring, and power distribution cabinet monitoring , steel support axial force servo monitoring, tower crane safety monitoring and other monitoring types, to achieve a multi-project, multi-site, multi-service safety monitoring mode. The main functions are as follows:
(1) Using Internet of Things technology and cloud computing technology to collect key monitoring data of various on-site Internet of Things monitoring systems in real time, realize automatic data collection, automatic calculation, and intelligent early warning, and provide data support for safe production;
(2) Through the unified data interface format, it supports data access, analysis and calculation of mainstream IoT equipment manufacturers on the market, and facilitates integration and integration with mature third-party monitoring systems in the market;
(3) Taking into account the traditional measurement methods, using Bluetooth technology and wireless transmission technology, the background reads the measurement data of the total station and the level in real time, and automatically uploads, calculates, and analyzes to ensure the authenticity and timeliness of the measurement data and provide security for decision-making. in accordance with.
4. Video surveillance system
Integrate the video monitoring system into the smart construction site management platform, and mark the corresponding position in the 3D scene, intuitively understand the spatial position of the monitoring points through the model, and perform real-time video preview, PTZ control, video capture, timing capture and monitoring of important monitoring points Event snapshots, etc., to ensure that the construction and production conditions are well known.
5. Environmental monitoring system
The dust monitoring terminal and video collection terminal are integrated into the smart construction site management platform. Through the platform, environmental data such as dust, noise, wind speed, wind direction, temperature and humidity, PM2.5, PM10, etc. on the construction site can be viewed and monitored in real time. When the environmental data exceeds the limit, Automatic linkage with fog cannon and dust suppression equipment to ensure the green and environmental protection of the construction site.
6. Labor real-name system management
Through the intelligent construction site management platform to access the on-site access control system, real-name system, positioning system and other hardware equipment data, you can understand the type of on-site personnel, entering and exiting the site, and their related identity details in real time on the platform. Push early warning information to realize comprehensive information-based dynamic supervision of the number of laborers, location information, status information, job type information, etc., and assist on-site production management.
7. Digital command system
For the purpose of "strengthening information communication", through the integration of intelligent voice engine, the rapid and directional release of production scheduling instructions is realized, and the relationship between the instruction issuer and the executor is clear, ensuring the efficiency of instruction execution; the system tracks the execution of instructions in real time, and displays the instructions through chart statistics Overall completion and overtime status, visually display the execution status of instructions, supervise the execution of instructions, and improve the construction of project execution; deeply integrated with concrete production scheduling, to realize production command of mixing stations, task assignment of mixing vehicles, vehicle information monitoring, concrete scheduling, and production process Responsibility is assigned to the person, and the data can be traced and checked; use the accumulated project production work execution data to count the completion effect of each department's project production work, and provide data support for the optimal deployment of project production work.
5. Summary and prospect of smart construction site
Through the research and development and practical application of the smart construction site visualization management platform, the digital management of part of the production data of the enterprise has been initially realized, which provides the basis for the application of the smart construction site and provides the impetus for the transformation, upgrading and development of the enterprise. At the same time, with the rapid growth of project volume, the construction industry is developing towards more integrated and unified management, efficient collaborative work, and more automation and intelligence. In the future, the smart construction site application system needs to be improved from the following perspectives to keep pace with the times.
(1) Provide integrated software and hardware solutions
Research the linkage technology between the application system and the on-site dispatching command system, improve the relevant software and hardware, form an intelligent command system with accurate data, smooth transmission, and timely response, and provide users with integrated software and hardware solutions. Establish a unified construction and operation standard in terms of hardware configuration, center style and layout, software application, staffing, production organization and daily management behavior norms.
(2) Research on Rapid Customization Technology of Smart Construction Site Management Platform
According to the differences in the management of engineering projects of different types and scales, summarize the common and individual content, and gradually solidify them into independently configurable business modules on the smart construction site management platform to achieve flexible combinations and meet the diverse needs of different projects , Improve the efficiency of pre-preparation for the construction of smart construction sites.
(3) Research on the framework of smart construction site management platform based on cloud services
Based on the framework of the current smart construction site management platform, in order to adapt to multi-project integrated applications and reduce the basic workload of platform deployment, research platform cloud deployment related technologies, and prepare for the data unification and sharing of enterprise-level information management platforms in the later stage.
In general, smart construction sites exist on the basis of the entire industry. Timely and effective supply of upstream resources is the prerequisite to complete the project with quality and quantity. All parties involved in the construction site must actively participate in the practice process to achieve good and efficient collaboration among various elements, so that the implementation of the construction site can become a real smart construction site.