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Video surveillance subsystem
1.1.1 System Overview
1.1.1.1 Perimeter video surveillance
The community perimeter is the first line of defense for security precautions, and the perimeter wall without security precautions is easy to become the preferred way for criminals to invade. The community perimeter needs to set up appropriate intrusion alarm trigger measures, once the intrusion behavior is detected, an alarm will be generated, and combined with video surveillance to provide real-time tracking means and post-event tracking basis.
Application scenario: 2-in-1 management of community perimeter monitoring and alarm
v Outdoor waterproof infrared bolts are arranged at the perimeter to monitor the community perimeter 24 hours a day;
v Infrared radiation is arranged around the perimeter to actively detect the community and the perimeter of the fence;
v Focus on the perimeter area to add infrared high-definition intelligent dome machine, set up preset points;
v Perimeter monitoring screen marking detection, personnel across the line alarm, and linkage with the nearby dome machine preset point;
v Alarm-related videos are displayed in the pop-up window on the large screen of the management center, and the video screen of the first N seconds of playback is traced in real time;
1.1.1.2 Monitoring of community public areas
In order to ensure the safety of the public areas within the community, and to avoid daily disputes caused by vehicle scratches, it is necessary to implement 24-hour video surveillance in key areas;
Simple video surveillance system for property management personnel to bring a complex workload, the efficient management of modern communities requires video surveillance with high-definition, intelligent, linkage characteristics, indirectly improve community security.
Application scenario: monitoring of key public areas inside and outside the community
v Set up infrared bullet cameras in internal and external key public areas, and select ultra-low illumination, strong light suppression, wide dynamic range and manual/electric zoom, optical zoom and other functions according to specific environmental characteristics, so as to realize the video surveillance management of outdoor public areas of the community, including the main roads of the community, activity squares, outdoor parking spaces, square pools and other key focus areas;
v Infrared bullet cameras are deployed on each façade of each building to monitor behaviors such as high-altitude throwing objects.
Application scenario: Parking lot safety management construction
In cases of vehicle collision and theft of property in the community parking lot, let the video restore the scene.
v. Video surveillance points are set at the entrance and exit of each parking lot, and real-time monitoring and video storage are carried out on the vehicles entering and exiting (which can be shared with the cameras of the vehicle access management system);
Video surveillance points are set up on the main roads and surrounding corners of the underground parking lot, taking into account the entry and exit and parking of vehicles in each parking space
1.1.1.3 Anti-high-altitude projectile monitoring
According to the community management norms, combined with the idea of technical defense construction, the intelligent high-definition video surveillance system will be able to monitor and retain the video of the balcony, window and other facades of residential buildings in real time, form a unified monitoring network, realize the key supervision of high-altitude projectile events in the building, and build a set of high-altitude projectile prevention and control system suitable for the whole project.
By deploying high-definition cameras in residential buildings for high-altitude projectile monitoring, on the premise of ensuring the privacy of residents, the front and rear balconies of residential buildings are covered without dead angles to ensure that all kinds of safety accidents can be monitored, and at the same time play a deterrent role and increase the safety awareness of owners.
Considering the community scene, it is recommended that the camera be erected on the ground, installed at an elevation angle, and the camera angle should be carefully adjusted to ensure that it will not shine into the window, and at the same time, in order to ensure the video effect, so that the throwing process is clearly traced, and the person and the window are clear and discerning, it is recommended to use 800W pixel full-color starlight-level high-definition intelligent camera for effective monitoring coverage.
1.1.1.4 Electric vehicles are prohibited from entering the elevator monitoring
The electric vehicle identification and early warning camera device is embedded with AI intelligent electric vehicle recognition algorithm to realize the detection, analysis and identification of electric vehicles, and real-time warning of electric vehicle intrusion events in the elevator car. The elevator car camera integrates analysis, identification, and early warning, and is installed and used offline in the elevator car. Configure relays, and support linkage voice alarm broadcasting, no need to connect to the monitoring center, simple installation, convenient maintenance.
No background, no servers, no clouds, offline apps work independently.
On-site alarm: When the electric vehicle is pushed into the elevator car and the camera recognizes the electric vehicle, the voice alarm will send out a voice broadcast and play the voice to prevent the electric vehicle from entering.
Control the elevator: When the electric vehicle is detected, the system equipment outputs a switching signal to the elevator light curtain control motherboard to force the elevator to keep the door open.
The networked type forms a complete electric vehicle forbidden elevator control and early warning solution through the interactive system and data storage from the front end elevator car electric vehicle identification and early warning camera to the back end of the monitoring room.
With the use of NVR, build a complete intelligent video surveillance system, complete system background support, provide standard configuration and alarm receiving tool software, as well as management platform software, without any development docking, can be used in a complete set.
Monitoring room alarm: When the electric vehicle is pushed into the elevator car, when the camera recognizes the electric vehicle, the alarm picture and alarm voice can be pushed to the monitoring room management computer in real time, and the software supports the automatic pop-up of the alarm picture, and the elevator door can be opened and closed manually.
Video recording: The monitoring room is connected to the hard disk recorder for real-time video recording, and the intelligent management system software is installed on the computer or server, which supports alarm information data statistics and other functions.
1.1.2 System composition
The overall design idea of the video surveillance system in this scheme is as follows:
1) The front-end equipment adopts high-definition IPC to achieve high-definition video capture, and at the same time, in order to meet the different needs of various application scenarios of the front-end, different types and different functions of IPC are recommended;
2) The NVR storage mode is used to distribute the real-time video to achieve high reliability and high cost performance of the storage system;
3) Deploy a modular and integrated video integrated platform, combined with a high-definition display large screen to realize the functions of video images, electronic maps, computer signals on the wall, splicing control, etc.; at the same time, the video integrated platform is also equipped with a server board to provide the necessary environment for the deployment of platform software and realize the integration of software and hardware;
4) Establish a unified video information management application platform to realize the unified management of the system, and introduce video quality diagnosis technology to ensure the stable operation of the system;
5) Fully consider the old and old systems, realize the seamless connection of the new and old systems, reduce costs, and reduce resource waste.
The system adopts high-definition video surveillance technology to realize high-definition collection, high-definition coding, high-definition transmission, high-definition storage and high-definition display of video image information; the system is based on IP network transmission technology, provides intelligent analysis technology such as video quality diagnosis, realizes the whole network scheduling, management and intelligent application, and provides users with a set of "high-definition, networked, intelligent" video image monitoring system to meet the increasingly urgent needs of users in the application of video image business. The main objectives of this program are as follows:
Build a unified central management platform: through the management platform to achieve unified video resource management of the whole network, unified management of front-end cameras, encoders, decoders, controllers and other equipment, remote parameter configuration and remote control, etc.; through the management platform to achieve unified user and authority management of the whole network, to meet the monitoring and management needs of multiple users of the system, and truly achieve "sitting in the center, controlling thousands of miles away".
Realize the high-definition and networked system: this solution aims to build a full high-definition monitoring system, to provide users with clearer images and details, so that video surveillance becomes more useful; at the same time, with the goal of building a full IP monitoring system, users can view, record and manage real-time video information through any computer in the network, and the system networking is convenient, the structure is simple, and the new monitoring point or client is very convenient.
The system has the following features:
1) The system has the characteristics of high reliability and high openness: through the use of mature and mainstream equipment in the industry to improve the reliability of the system, especially the stability of video storage, in addition, the system can be connected to other manufacturers' cameras, encoders, controllers and other equipment, and can be seamlessly connected with the platforms of other manufacturers;
2) It has the characteristics of high intelligence and low bit stream: the intelligent analysis and cameras with intelligent functions are used to improve the intelligence level of the system, and at the same time, the video stream is reduced through advanced coding technology, the storage cost and network cost are reduced, the dependence on the network is weakened, and the smoothness of video preview is improved.
3) With the characteristics of rapid deployment and timely maintenance: through the use of highly integrated, modular design of equipment to improve the efficiency of system deployment, reduce the system debugging cycle, the system can timely find the fault of the front-end monitoring system and timely alarm, rapid response;
4) It has the characteristics of high integration and full use of the old: the new system can be highly integrated and seamlessly connected with the original system, which can make full use of the original monitoring resources and avoid the waste of early investment.
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