What is the installation of video surveillance at a construction site?

***7km east, in the center of Beijing CBD, at the southeast corner of Dawang Road, there are two high-rise buildings with beige facades. The current owner of Chang’an No. 8 is Guo Yingcheng and a 50-year-old real estate businessman from Chaoshan District. , The sales scale was once listed in the founder of TOP20's listed housing company Kaisa (01638.HK). Some media have disclosed that the total cost of Kuok’s acquisition of Chang’an 8 was RMB 6 billion. At present, video surveillance is installed on many construction sites for detailed analysis.

The construction industry is an industry with frequent accidents. At present, with the construction of the national infrastructure, the ever-increasing scale of construction, and the complicated and complex technological processes, how to do a good job of on-site construction site management and control the frequency of accidents has always been the focus of attention of construction companies and government management departments. Utilizing modern technology, optimizing monitoring methods, realizing real-time and full-process safety supervision have also become issues to be considered in the safe construction management of the construction industry. With the rapid development of science and technology, video signals are digitally compressed and transmitted over the Internet via broadband, enabling remote video surveillance. Applying this function to construction site safety management will inevitably greatly increase management efficiency and enhance the level of supervision. The operation of the monitoring system has enabled construction companies to leap onto a new management platform, strengthen government supervision, and timely and effectively grasp the on-site construction dynamics. The video monitoring device is just like the “electronic eye”. It monitors the construction progress in real time and in a multi-faceted manner. For the operator, it also virtually increases the control, standardizes the behavior, and improves safety awareness.

Everything is to build a harmonious society

Starting from the requirements of putting people first and building a socialist harmonious society, combining the actual needs of urban management, we will build an intelligent regulatory information platform that integrates video surveillance, noise monitoring, dust monitoring, and mud transport supervision at construction sites, using advanced information technologies. Realize the informationization, intelligence, standardization, and normalization of civilized construction on the construction site and the supervision of mud transport, greatly improve the management level, and enable the construction site of XX City to achieve “no noise disturbance”, “no dust pollution” and “no overtime construction”. "The mud transport achieves a clean, harmonious and civilized urban environment, with no undocumented shipment, no mud on the road, no spillage, no speeding and overload, and no stolen emissions." To protect the achievements of the Asian Games and benefit the general public, at the same time enhance the image and taste of the city, enhance the competitiveness of the city, and promote the sustainable development of the economy and society.

The intelligent supervision platform system construction plan mainly includes on-site monitoring facilities, network transmission facilities, hardware and software support platforms, database groups, application management platforms, external services, and corresponding management systems. It is divided into infrastructure, network, data, platform and application layers.

Overall system architecture design

At the infrastructure level, construction sites on-site video surveillance, noise detection, dust detection, license plate recognition, vehicle detection, RFID certification, electric roadblocks, voice intercom, sound and light alarms, industrial computers, data transmission terminals and other systems or facilities; build monitoring The hardware platform of the center, such as servers, storage, switches, and terminal equipment, builds a basic system for construction site and sludge transportation supervision information platform to meet the needs of various applications based on the network.

At the data layer, based on the existing basic terrain data of the ** Committee, the spatial database required for the application of this system is built by collecting and recording the spatial locations of various construction sites. At the same time, the establishment of a video surveillance database and a database of environmental monitoring and mud vehicle management, combined with daily supervision work, to enrich the various types of business data.

At the application level, we will build a smart supervision information system for construction sites and silt transportation, a large-screen monitoring and intelligence system for construction sites and sludge transportation. The construction site site monitoring and communication management system is used by the staff of the monitoring and management centers at all levels, law enforcement agencies, on-site management, and other relevant personnel.

What is the role of video surveillance?

1, video monitoring subsystem

Each site shall install at least a video surveillance probe, including a camera with license plate recognition, and implement all-weather video surveillance on the site entrance and construction site site environment, and remote monitoring and remote control through the monitoring center platform.


2. Map and GPS Tracking Subsystem

The system displays the distribution map of the construction site on the thematic map, and can perform multi-stage zooming and positioning of the attributes of the designated site, and supports quick positioning based on information such as site number, license plate number, road name, house number, interest point, and site name. Supports the real-time display of vehicle trajectory and driving speed on the map.

3, smart roadblocks subsystem

Intelligent barrier systems and vehicle detectors are installed at the main exits of each site to control access to passing vehicles and remotely controlled by the monitoring center.

4, the environment detection subsystem

Noise monitors and dust monitors were installed at key sites on each site to continuously collect site noise and dust quantification values. When the collected site noise and dust data exceeded the set alert values, they were alerted to the monitoring center.

5, voice intercom and sound and light alarm subsystem

Video surveillance voice intercom equipment is installed in each construction site duty room to facilitate timely communication between relevant parties and record the entire communication process. At the same time, a sound and light alarm device was installed at each site to provide timely warning of construction violations on the site.

6, license plate automatic identification subsystem

Two sets of high-definition license plate recognition cameras are installed at the entrances and exits of each construction site to identify and record vehicle license plates entering and exiting the site, and to interact with the intelligent roadblock system.

7, RFID authentication subsystem

A set of RFID receiving devices is installed at the entrances and exits of the construction site to read data on RFID passive RF cards of the mud transport vehicles entering and leaving the site and to perform permissive certification for each vehicle.

Open architecture compatible with other standards

1, the system has cross-platform, compatibility

Video surveillance application system can run on different operating systems and hardware devices, with strong cross-platform and extensive compatibility.

2. Organic integration of MIS and GIS to provide an integrated application environment

Realized the integration of MIS and GIS technology, and provided a graphic and text integrated collaborative application environment based on B/S structure for all types of users.

3, GIS technology and Internet technology integration, to achieve the GIS service Web

The integration of GIS technology and Web technology enables users to perform various operations of geographic information through the browser. Different from the GIS application system of the C/S structure, the user cannot directly access the map resource library from the WEBGIS server, thereby truly guaranteeing the application safety of the original map data. At the same time, WEBGIS technology has greatly reduced the operational requirements for network bandwidth, so as to meet the government's requirements for map data applications on the government affairs special network.

4, open data structure design to adapt to the development of various standards

In order to ensure that the actual implementation of standards can continue to adapt to the development of international and business standards, the system provides open data structure design, provides data structures and data dictionary editing, expansion tools, so that the data structure system used by the system can be adopted in a very concise manner. Constantly revised, expanded, and constantly upgraded to adapt to changes in various standards.

5, standard and flexible interface design, fully realize the network information resource sharing

The system is based on a multi-tier system architecture, using standardized data interface design and flexible system interface design. It selects a mature messaging bus (Messaging Bus) based on XMI and supports HTTP, WEBSERVICS, FIP, TCP/UDP, JMS, RMI, and IIOP. Data transmission methods such as SSL and other communication protocols realize the interface and interaction of service information between different systems.

6, using communication multiplex transmission technology to achieve the use of multiple data transmission

Through dedicated communication multiplex equipment, video signals, noise detection data, dust detection data, and electric roadblock status monitoring data of the construction site are multiplexed through communication and transmitted to a centralized monitoring center through a physical communication link. As a result, the communication link rental and on-site equipment acquisition costs can be greatly reduced.

7. Using license plate automatic recognition technology to quickly identify vehicle license plates

Based on the latest computer vision technology, using video stream triggering, video surveillance can dynamically and accurately identify the relevant vehicle's license plate number by performing image processing on the real-time video signal of the captured vehicle. Not only the environment adaptability, but also the recognition speed.