Introduction And Analysis Of Security Camera Monitoring System

1. Community perimeter anti crossing alarm

The perimeter anti crossing alarm system is designed to use the perimeter anti crossing active infrared radiation alarm system to actively detect, locate and alarm the surrounding illegal intruders, identify which radiation area occurs to the security personnel, and prompt the security personnel to deal with it. The residential area adopts the combination of infrared security camera and infrared radiation on the fence. In combination with the site conditions and Party A's suggestions, the number of shooting pairs is up to 50, and the situation of each alarm point will be displayed on the digital map. At the same time, the monitoring security camera can point to the problem location for viewing.

2. CCTV monitoring

The CCTV security camera monitoring system mainly adopts the multiplex mode of CCTV monitoring in the main channel and area. For the linkage alarm in case of occurrence, it adopts Outdoor Color omni-directional three variable cameras, cameras with different illuminance, and infrared night vision cameras need to be installed in different parts. The design system uses the hard disk video recording system of alarm linkage video recording as the alarm image storage, and uses the large-scale video matrix as the central control system.

3. Intercom and all-in-one card (including family anti-theft)

It is mainly aimed at effectively managing and controlling the flow of visiting guests in residential areas, residential buildings and residents. By setting up the management center machine and the door machine of residential buildings to form the peripheral visiting equipment, the indoor unit of residents is designed to select the resident extension with networking function, so as to complete and expand the function of the system, It can also meet the needs of different households and save the increased investment for the establishment of different system functions. This extension system can not only meet the visual intercom function, but also realize the function of calling the property management center. The functions of the intercom part include: building visual intercom, smart home security, community announcement, photo message, home appliance control, lighting control, three table query, community service, family assistant, etc. Full Chinese interface, graphic display, touch screen operation, lock control, monitoring, Hexuan ringing, door bell, call doorman, call center, emergency rescue, wired and wireless zone alarm, MMS sending and receiving, call transfer, care function, mute and undisturbed, and support touch screen operation.  The all-in-one card is mainly practical, durable and user-friendly.

Front end part

The front end completes the shooting of analog video, the generation of detector alarm signal, the control of PTZ and protective cover, alarm output and other functions. It mainly includes security camera, electric zoom lens, outdoor infrared radiation detector, dual monitoring detector, temperature and humidity sensor, pan tilt, protective cover, decoder, alarm lamp, siren and other equipment (the use of the equipment is configured according to the actual needs of users). The camera captures the scene situation into analog video electrical signal through built-in CCD and auxiliary circuit, which is transmitted through coaxial cable. The electric zoom lens brings the shooting scene closer and farther, and realizes optical adjustments such as aperture and focusing. The temperature and humidity sensor can detect the ambient temperature and humidity, so as to control the temperature and humidity in the protective cover to be most suitable for the working environment of the camera. The pan tilt can adjust the shooting angle horizontally and vertically. The decoder is the core equipment of PTZ and lens control. Through it, the lens and PTZ can be controlled by using microcomputer interface and software.

Transmission part

The transmission part introduced here is mainly composed of coaxial cable. The transmission part requires real-time transmission of the image recorded by the front-end camera. At the same time, the transmission is required to have small loss and reliable transmission quality, and the image can be clearly restored and displayed in the video control center.

control section

This part is the core of the security camera monitoring system. It completes the functions of digital acquisition of analog video monitoring signal, MPEG-1 compression, monitoring data recording and retrieval, hard disk video recording and so on. Its core unit is the acquisition and compression unit. Its channel reliability, operation and processing ability and the convenience of video retrieval directly affect the performance of the whole system. The control part is the key part to realize the linkage between alarm and video recording.

TV wall

This part completes the real-time monitoring signal display on the system display or monitor screen and the playback and retrieval of video content. The system supports multi picture playback, simultaneous recording of all channels, system alarm screen, sound prompt and other functions. It is compatible with the sweeping monitoring function of the traditional TV monitoring wall, greatly reduces the work intensity of the on duty personnel and improves the reliability of security defense. The terminal display part actually completes another important work - control. This control includes camera pan tilt, lens control, alarm control, alarm notification, automatic and manual fortification, anti-theft lighting control and other functions. Users only need to click the mouse on the system desktop.

burglar alarm

Install active infrared probes at important entrances and exits and staircases in the inner enclosure for defense deployment. Install alarm host in the duty room (monitoring room) of the monitoring center. Once someone enters somewhere, the probe will automatically sense and trigger the alarm. The host will display the alarm position, linkage the corresponding searchlight and camera, and automatically switch to the alarm camera screen on the host, The monitoring of the alarm center uses the computer to pop up the electronic map and make alarm records to prompt the personnel on duty to deal with it, which greatly strengthens the security. The alarm prevention system uses the active infrared mobile detector to control the important channel and connect it to the alarm center of the management center. When someone enters from an abnormal entrance during non working hours, the detector will immediately send the alarm signal to the management center, start the linkage device and equipment at the same time, warn the intruder, and carry out continuous camera and video recording.

The electronic fence is the most advanced perimeter anti-theft alarm system. It is composed of high-voltage electronic pulse host and front-end detection fence. The high-voltage electronic pulse host generates and receives high-voltage pulse signals, generates alarm signals when the front end detects that the fence is in the state of net contact, short circuit and open circuit, and sends the intrusion signal to the safety alarm center; The front end detects the physical perimeter of the fence composed of rods, metal wires and other components. Electronic fence is an active intrusion prevention fence, which can counterattack the intrusion attempt, repel the intruder, delay the intrusion time, and do not threaten people's lives. It also sends the intrusion signal to the monitoring equipment of the security department, so as to ensure that the management personnel can understand the situation of the alarm area in time and deal with it quickly.

System power supply

The power supply plays a vital role in ensuring the normal operation of the whole closed-circuit security camera monitoring and alarm system. Once the power supply is damaged, the whole system will be paralyzed. The power supply of the system can adopt centralized power supply and decentralized power supply, and users can choose according to actual needs.

The above is only an introduction to a typical security camera monitoring system. In practical application, different types of schemes will appear. The security camera monitoring system scheme will generally be customized according to the different requirements of users.