The Youth Theoretical study group of the Engineering Quality and Safety Supervision Department of the Ministry of Housing and Urban-Rural Development formed a research group and went to Shenzhen and Foshan in Guangdong Province to carry out research on the application of information technology in the construction industry. The research group has been to a public housing project in Shenzhen City, a residential project in Foshan City (construction robot construction operation) and other construction sites, to learn first-hand information about the application of information technology, visited some information technology companies, and held discussions with Shenzhen, Foshan and other local housing and urban and rural construction authorities and relevant enterprises. We will listen to the opinions and suggestions of grassroots authorities and enterprises.
Application of information technology in construction industry
In recent years, Guangdong Province has actively promoted the integrated application of Internet, Internet of Things, AI, big data and other technologies in construction projects, and has achieved remarkable results, and the traditional operation mode and management mode are undergoing revolutionary changes.
Explore smart construction and operation. Public housing projects. A public housing in Shenzhen and its affiliated projects are currently under construction in the country's large-scale prefabricated public housing projects, with a total investment of 5.8 billion yuan and a total construction area of about 1.16 million square meters. The project is the "13th Five-Year" national key research and development plan green building and building industrialization key special comprehensive demonstration project, demonstration landing 16 "13th Five-Year" national key research and development plan project 49 key technical results, for China's green building and building industrialization to achieve scale, high efficiency and sustainable development to provide technical support.
In this regard, six technologies are mainly applied: First, intelligent construction. With the self-developed intelligent construction platform as the control center, it covers the design, calculation and pricing, recruitment, production, construction and operation and maintenance links, realizing the data transmission, interaction and summary of construction information in the whole life cycle of the building, and creating an Internet-based big data integration system for the construction process.
The second is digital design. The "cloud desktop" is adopted to achieve full-professional collaboration mode across the point, and based on building information model (BIM) design, through BIM model assisted computation, virtual construction and panoramic virtual reality (VR) technology, to achieve full-professional design change and process management. Through the cloud platform, support the information management of manufacturing, construction, operation and maintenance.
Third, the whole life cycle component traceability. Each prefabricated component generates an identity code, and uses two-dimensional code technology to record the whole process of component production, construction and other information, so as to realize the traceability of the whole life cycle information of components, and the interconnection of all elements and full data in the construction process.
Fourth, there is no automatic inspection and three-dimensional modeling. The cloud presets the route, automatically inspects the site, automatically establishes the site vectorization model through the graph algorithm, and constructs the site big data system with time and space dimensions. The mapping robot completes the millimeter-level point cloud mapping scan of the project site, automatically establishes the building point cloud model in the cloud, and integrates it with the model to realize automatic comparison with BIM design data and automatically generate quality reports.
Fifth, unsafe behavior machine vision recognition. (AI) Visual recognition combined with information technology, capture the action and wearing images of on-site personnel, carry out real-time identification, real-time alarm, on-site punishment of unsafe behavior of on-site personnel, record the whole process in the cloud, further standardize the safety behavior of on-site personnel, and reduce on-site safety risks.
Sixth, smart management. Integrate the core data of the whole process from design to completion, and deliver to the owner the BIM based digital twin completion model, which can provide the digital residence instruction manual, and virtual various hidden projects and their construction information with the help of VR technology, so as to facilitate the use of residents. In addition, the model also supports the creation of smart communities, smart buildings, smart property and other application scenarios.
A construction robot. A robot Co., Ltd. built an intelligent construction operation management platform, established a construction robot construction operation scheduling system, used BIM technology to model the construction project, formed the digital space of the project, and simulated the construction site operation process. Through the reasonable arrangement of various construction processes and work paths, the task instruction is issued to the construction robot by using the Internet of Things technology. With man-machine collaboration, construction robots and construction workers interact through the intelligent construction operation management platform, combining the characteristics of robot operation and flexible operation of workers to jointly complete various construction tasks and realize the collaborative operation of construction robots and construction workers.
At present, the company is researching a total of 51 types of construction robot products, covering major construction processes and processes. Among them, 24 products such as indoor spraying robot, exterior wall spraying robot, ground leveling robot, ground leveling robot, prefabricated interior wall panel handling robot, interior wall panel installation robot, and floor tile laying robot have entered the construction site test application. From the test results, the construction robot has the following characteristics: first, the efficiency of construction operations and the quality pass rate of completing task instructions is high. For example, the construction efficiency of the exterior wall spraying robot reaches 150 square meters/hour, far exceeding the traditional manual construction; When the ceiling grinding robot is less than 5 mm apart, the quality passing rate after grinding is high. Second, it can replace traditional manual construction in the relevant processes, reduce the construction of personal injury and reduce the incidence of construction safety accidents. For example, the floor cleaning robot can replace the manual cleaning debris and dust in the dust environment, and the cleaning coverage rate can reach 90%; Indoor spraying robot can avoid the harm of paint to workers and solve the safety risk of climbing during manual operation; The jack-up building platform is constructed by a crane robot, which carries out aluminum formwork installation, steel binding, concrete leveling and polishing and other processes to realize the intelligent upgrade of the traditional construction technology with high risks. Intelligent construction elevator can be remote control, intelligent scheduling, driverless, automatic operation, with anti-pinch, portrait recognition and other functions, high safety, saving labor costs.
In addition, the research team also visited a company's smart building management platform. The platform is an iot operating system deeply adapted to the smart building scene, providing iot, management and digital services for the hardware, applications, services and other resources in the building, giving the building the intelligent ability of comprehensive coordination, and providing a safe and convenient building integrated management system for building management operators and building owners.
Promote the implementation of smart regulation and services. Based on the Internet of Things, cloud computing, VR and other technologies, Shenzhen developed and operated an intelligent supervision platform for construction engineering and a smart supervision system for construction waste in 2018.
The intelligent supervision platform of Shenzhen Construction engineering stores all data on the site in the cloud through functions such as real-time site monitoring, site operation information traceability management, site equipment working condition management and security ledger management. Project managers can use mobile phones, computers, tablets and other mobile terminal devices to access cloud data and operate and control the site. Solve the problems in time, constantly improve the construction site management, and promote the standardization of project site quality and safety management.
The main features are: first, to achieve "one network management". Through the "one network management" of construction projects, employees and key hazard sources, a "one network" of two-level multi-subject safety supervision in urban areas has been constructed, and the information of management personnel and the integrity of labor workers in all participating units of construction projects under construction has been obtained in real time, as well as the on-duty status of key personnel in key management positions and the certification status of special operators has been obtained. Dynamic grasp of the basic information of 12 types of dangerous projects, to achieve foundation pit, lifting machinery and other ledger management. Second, to achieve "standardization". Through establishing an electronic list of law enforcement matters, standardizing law enforcement standards, reducing discretion, and standardizing supervision and law enforcement; The daily inspection of the construction unit, the weekly inspection of the supervision unit, the monthly inspection of the construction unit and other behaviors are implemented to specific positions, and the inspection contents of different construction stages are clarified to achieve the standardization of the performance behavior of enterprises. The third is to highlight the application of intelligent technology. Through data collection and analysis, it focuses on the intelligent hierarchical early warning of personnel performing their duties, enterprises performing their duties, monitoring results and supervision and law enforcement behavior. The use of the Internet of Things technology to implement automatic monitoring of dangerous projects such as deep foundation pits, real-time acquisition of monitoring information, and prompt on-site disposal through the early warning system. Automatic and instant issuance of law enforcement documents and submission of project rectification are realized through the APP, forming a closed-loop management of supervision and law enforcement.
Shenzhen construction waste intelligent supervision system based on the Internet of Things, remote sensing, cloud computing, big data and other information technology, the construction waste discharge, transportation, transit, backfill, receiving and utilization of the process of the implementation of the whole process, all-weather intelligent supervision. Through real-time online monitoring of rainfall, surface displacement, deep displacement, soil water content and other data of receiving site dam and landfill, dynamic monitoring and automatic warning of receiving site safety can be realized.
Three major achievements have been made in this regard: First, intelligent supervision. Through the collection of construction waste discharge, transport vehicle status and receiving site receiving information, it can realize the approval of construction waste discharge, the information check of consumption record, and the early warning of illegal disorderly behavior. Second, the whole process joint order monitoring. Real-time automatic recording of the whole process is realized from the source (discharge) - transportation - end disposal (acceptance) of the construction site, and the formation of electronic joint document data can record the location, quantity, type, transport vehicle, transport track, disposal site and other information of construction waste to ensure that waste disposal traces can be checked. Third, connectivity. The system has realized the sharing of relevant information among regulatory departments at all levels such as housing and urban and rural construction, transportation, water affairs, and traffic police, so that data can run more roads and the masses can run less errands.
These applications show that modern information technology has taken root and sprouted in the construction industry of Guangdong Province, and deeply integrated with a variety of traditional forms of business, and promoted new forms of business, showing broad prospects and huge potential. With the digitalization and intelligent transformation of the construction industry, more information technology will be applied to the field of housing construction in the future, in order to achieve the development of the construction industry to the goal of "safety, green and wisdom".
In the construction industry, Guangdong Province has boldly carried out pioneering experiments using cutting-edge technologies such as AI, cloud computing and big data, and achieved phased results. However, through the investigation, it is found that there are still the following problems in the application of information technology in engineering projects:
The technology needs to be further improved. At present, the construction robot product technology needs to be further polished and perfected in practice. For example, the research and development work of building robots is mostly dominated by computer technology experts, and only aims at achieving construction-related functions. Due to the lack of construction experience and insufficient consideration of the construction conditions of the project site, the performance of the construction robot in the field construction process is unstable. If the construction robot is used to carry out decoration work, due to insufficient consideration of the poor accuracy of the civil construction of the main structure, the construction positioning of the construction robot will be biased, which will affect the construction quality and efficiency
The application process lacks regulatory and standard support. The construction method of construction robot is different from the traditional construction method, and the existing standards and supervision process need to be improved. Although some enterprises have formulated relevant standards for the application of information technology, due to incomplete content, imperfect system and lack of technical support, the actual guidance role is not strong. For example, the research and development of intelligent lifts will replace the current construction lifts, but the current national standard stipulates that the dual-use construction lifts must be operated by personnel who are trained and hold the lift special equipment certificate, which contradicts the working mode of intelligent lifts that do not require operators. At present, the construction robot in the construction equipment inspection and other aspects, the state has not yet a special standard and laws and regulations, affecting the development and application of construction robots.
Application scenarios need to be further expanded. Some enterprises have applied information technology in the construction link, and have played a very good effect. However, from the perspective of the application of the whole chain, information technology has not been fully applied to the whole process of construction management of construction projects, resulting in a relatively single application scenario of information technology, affecting the application effect of information technology in the construction industry, which is not conducive to the long-term development of information technology in the construction industry.
In order to accelerate the popularization and application of information technology in engineering projects and promote the high-quality development of the construction industry, the following suggestions are put forward:
Comprehensively strengthen the application research of building robot technology. The research and development of construction robots should be led by construction technology and assisted by robot technology. By strengthening the construction robot site test work, according to the construction robot site test data, the performance parameters of equipment and products are improved and perfected, and the safety performance and construction efficiency of construction robots are continuously verified. After the safety certification and qualification certification by the market supervision department, under the premise of ensuring the quality and safety of construction, construction robot products can be put into the actual project to promote the use. Strengthen the investigation of construction robot construction safety risk points and hidden dangers, and compile relevant operation management guidelines. For equipment and products involving dangerous operations, experts shall be organized to carry out technical demonstration in a timely manner, property rights shall be filed and registration shall be made with reference to special equipment management regulations, and construction safety management procedures of equipment and products shall be improved.
Formulate and improve relevant regulations and standards. Construction involves many laws and regulations, the development and use of construction robots is a new model, the lack of relevant laws and regulations support, in the actual work there are relevant laws and regulations lag, and contradict with the new mode of construction, and some seriously restrict the product development and trial. To this end, we should actively explore and solve the problem of lagging laws and regulations, and make up for shortcomings as soon as possible. Fully consider the application scenarios of new technologies, strengthen in-process and post-event supervision, and remove regulatory and institutional obstacles. Actively guide, encourage, and support enterprises and localities to promote the preparation of industry standards, accelerate the improvement of information technology application standards and norms, and gradually raise enterprise standards to group standards, local standards or national standards, docking the existing construction quality acceptance of relevant norms, through the improvement of technical standards system, to promote the practical application of information technology in construction projects
Actively expand the whole chain application scenarios. Construction management activities of construction engineering have the characteristics of long duration, complexity, and involve multidisciplinary knowledge. In order to make use of information technology, we should expand the application scenarios of the whole chain. In-depth docking with the construction industry, information technology, Internet and other fields, focusing on the application needs of intelligent construction, digital construction, smart construction site, intelligent supervision and other applications, condensing a number of application scenarios with larger and stronger demonstration role, and promoting intelligent construction, industrial Internet, big data integration and other fields to participate in the construction of building application scenarios. Accelerate the promotion and application of new technologies, new products and new models to provide more space for enterprise innovation and high-quality development of the construction industry.
| 上一条:Here comes the prefabricated building! Harbin key promotion | 下一条:Precautions for the use of saber saw |
HOME
Products
TEL