Wuxi Security Monitoring The system uses optical fiber, coaxial cable or microwave to transmit video signal in its closed loop, and forms an independent and complete system from camera to image display and recording. It can reflect the monitored objects in real time, vividly and truly, which not only greatly extends the observation distance of the human eye, but also expands the function of the human eye. It can replace manual monitoring for a long time in harsh environments, so that people can see the actual situation of the monitored scene and record it through the video recorder. At the same time, the alarm system equipment will alarm for illegal intrusion, and the generated alarm signal will be input to the alarm host, which will trigger the monitoring system to record.
Edit voice in the front 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: camera, electric zoom lens, outdoor infrared target detector, dual monitor detector, temperature and humidity sensor, PTZ, protective cover, decoder, BSV LCD splicing screen, digital scanner, alarm light, siren and other equipment (equipment usage is configured according to the actual needs of users). The camera takes the scene as an analog video electrical signal through the built-in CCD and auxiliary circuit, which is transmitted through the coaxial cable. The electric zoom lens pulls the shooting scene closer and farther, and realizes optical adjustments such as aperture and focusing. Temperature and humidity sensors can detect the temperature and humidity in the environment to ensure a good internal physical environment. PTZ and protective cover video camera And the lens provide a suitable working environment, and can realize the horizontal and vertical adjustment of the shooting angle. Decoder is the core equipment of PTZ and lens control, through which the lens and PTZ can be controlled by software through microcomputer interface.
Transmission part
The transmission part introduced here is mainly composed of coaxial cable. The transmission part requires real-time transmission of the image captured by the front-end camera, and the transmission is required to have low loss, reliable transmission quality, and the image can be clearly restored and displayed in the video control center.
control section
This part is Security monitoring The core of the system, which completes the digital acquisition of analog video surveillance signals, MPEG-1 compression, monitoring data recording and retrieval, hard disk recording and other functions. Its core unit is the acquisition and compression unit. Its channel reliability, computing and processing capabilities, and the convenience of video retrieval directly affect the performance of the entire system. The control part is the key part to realize the linkage between alarm and video recording.
TV wall display part
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 multiple screen playback, simultaneous video recording of all channels, system alarm screen, voice prompt and other functions. It is compatible with the monitoring function of traditional TV monitoring wall, and greatly reduces the work intensity of the personnel on duty and improves the reliability of security defense. In fact, the terminal display part also completes another important work - control. This control includes camera pan and 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 to operate.
Anti theft alarm part
Active infrared probes are installed at important entrances and exits and stairways for defense. Alarm host is installed in the duty room (monitoring room) of the monitoring center. Once someone enters a certain place, the probe will automatically sense, trigger the alarm, and the host will display the alarm position. At the same time, it will link the corresponding searchlights and cameras, and automatically switch to the alarm camera image on the host, The monitoring computer in the alarm center pops up an electronic map and makes an alarm record, prompting the personnel on duty to deal with it, greatly strengthening the security. The alarm prevention system uses active infrared mobile detectors to control important channels and connect them 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, and at the same time start the linkage devices and equipment to warn the intruder, so that continuous video and video can be taken. Installed outside the building Electronic fence Electronic fence is the most advanced perimeter anti-theft alarm system at present, which 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, and can generate alarm signals when the front end detects that the fence is in the status of net contact, short circuit and open circuit, and send the intrusion signals to the security alarm center; The front end detection fence is a tangible perimeter composed of poles, metal wires and other components. The electronic fence is a kind of active intrusion prevention fence, which can fight back against the intrusion attempt, repel the intruder, delay the invasion time, and do not threaten human life, and send the invasion 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.
