With the continuous advancement of society, the concept of safe production has been deeply rooted in the hearts of the people. In the construction industry where accidents occur frequently, how to ensure the personal safety of construction workers, promote civilized construction, and protect the property of the construction site is a top priority for construction units and higher authorities. Vision Electronics combines its own advantages in monitoring operation management platform and hardware research and development, and provides a set of centralized management system for remote monitoring, centralized management and real-time monitoring of construction sites according to the current situation of construction sites, so that relevant management departments and responsible persons can pass the network. Real-time monitoring of construction sites with computers and mobile phones, and timely understanding of some emergency emergencies, reducing property losses and ensuring the safety of life. Even when you are on a business trip, you can always see the progress of the project and give corresponding guidance. The Chongqing Construction Committee needs to conduct remote centralized monitoring and management of multiple construction sites in Chongqing. Each site needs to deploy 5 or 6 surveillance cameras.
The remote video surveillance system is installed through the construction site to achieve real-time understanding of the construction site conditions, real-time supervision of safety and quality, and timely detection of safety quality hazards, effectively prevent the occurrence of safety and quality accidents, and improve the efficiency of safety supervision departments. .
There are four main functions of the remote video surveillance system on the construction site:
(1) Real-time remote monitoring
This is the most important function of the remote monitoring system. The monitoring system exchanges data through the video monitoring center platform. The system client can use the common browser, and the management personnel can use the network communication and authorization password to realize in the monitoring center, the unit office and the home. View real-time images of the construction site and control of the front-end camera (up, down, left, right, far, near, etc.).
(2) Real-time image processing
The client software also provides image capture and printing functions. If the administrator finds that there is a security risk on the monitored site, simply select the image on the monitor screen and click the button to save the desired image locally. In the computer, valid evidence is provided for the processing of future events, and there will be time display on the captured images.
(3) User hierarchical management
The system has perfect rights management function. When users log in, they implement hierarchical management according to user name and password, and distinguish authorization rights. Different cameras can be assigned to different accounts. For example, the management of the competent department has the right to view the cameras of all the construction sites, and the project manager of a certain construction site can only view the image of the construction site, and the system can also set the permission level of the control of the camera.
(4) History record inquiry
All monitored videos can be saved in the video of the monitoring center's server. Flexible device recording time. Thereby, the historical query of the image of the construction site is realized, and at the same time, the management personnel can directly call the video data stored on the server through the client software.
Site video surveillance system implementation plan
The site remote video surveillance system uses the current advanced computer technology and network technology to realize the real-time monitoring of construction sites by means of the wired and wireless transmission network of the communication operator and the remote video surveillance and monitoring center of the construction site.
The system includes three parts: front-end monitoring, network transmission, and monitoring center. The front-end monitoring is to install video monitoring equipment on the tower crane or bracket of each construction site. The network transmission system transmits the data collected by each front-end monitoring device to the monitoring center through the wireless network. The monitoring center information is a comprehensive information platform integrating computer network, communication network and intelligent management system. It is the infrastructure for realizing site monitoring and scientific management.
Site monitoring mainly solves the following problems:
In this solution, the front-end monitoring data transmission uses a 3G wireless channel. 3G wireless transmission mode, easy to install, easy to move, the key is that there are often no other wired transmission conditions on the construction site.
In the construction site, the installation position of the surveillance camera can be selected from the tower crane, the construction site warehouse, the physical work site, the construction site office, the living room, and the surrounding environment. According to the monitored object, the installation location can be freely selected. Surveillance cameras installed at the tower crane contours generally use a dome camera with a pan/tilt, and for fixed sites such as construction site gates, a cloudless platform can be used to monitor the entire area. The ball machine can adjust the direction and zoom the lens. The recommended camera has infrared night vision for day and night monitoring. In addition, since the camera is outdoors, it must be waterproof, and the height of the installation is 2.5 meters or more to prevent malicious elements from being vandalized.
The wireless transmission mode is adopted in the scheme, and the selected devices are all integrated wireless video servers, mainly implementing the following functions:
1) compression of the video signal;
2) wireless network transmission of video signals;
4) Access to other audio and alarm devices.
In the construction site, there is continuous power supply and direct access. However, it should be noted that the layout of the wires must comply with the relevant construction site safety regulations.