Network video monitoring system of hotel
Network video monitoring system of hotel
Network video monitoring system is the security technology system is an important part, is an advanced, strong guarding ability system, it can be through remote cameras and ancillary equipment ( PTZ, lens ) for direct viewing are monitoring sites, stick out a mile; at the same time it can be places of surveillance images and the voice of all or a portion of the record, this is the future of some of handling the incident provided a convenient conditions and important basis, at the same time network video monitoring system can also anti-theft alarm and other security technology to guard against system linkage operation, ability to prevent more powerful。
Security technology equipment, equipment and components by the system can achieve rapid response against the invaders, and promptly found and arrested the criminals, the criminals have a strong deterrent. The security technology and can find hidden dangers of accidents, prevent damage, reduce accidents and the prevention of fire, it is the public security work in a very important means of prevention. Especially in the highly developed modern technology today, the crime is more intelligent, more subtle means, strengthen modern security technology becomes more important。
Two, the necessity of system design
Hotel, hotels and other units due to the nature of their work, which is mainly for the guests to provide accommodation, catering, entertainment, leisure and business staff, more numerous, and the vast majority of foreign guests, while criminals just use of this environment, sneak into the hotel, hotel opportunistic crime, directly affect the security of the person and guests property security, directly affects the hotel, hotel reputation; financial room, downstage wait is the cash flow is the main place, establishment of network video monitoring system, alarm, a combination of communication security system is the effective means of the guard; and installation of fire prevention alarm system, able to fire the bud in the fight, to avoid major fire accidents。
Three, system design
Network video monitoring system alarm system by the camera part ( sometimes pickup, alarm detector), transmission part, control part and the display and recording part。 In each section also contains more specific equipment or parts。
Part 1 Video
Camera part is the network video monitoring system of the front part of the whole system, is "the eyes". It is arranged in a position places under surveillance, so that its angle can cover the entire monitored all parts. Sometimes, places under surveillance area is larger, in order to save camera used quantity, simplify the transmission system and the control and display system, in camera installed electric ( remote control ) variable focal length lens ( zoom ), so that the camera can be observed in the distance farther, more clearly, but also put the camera mounted on the electric platform, through the control of the controller, can make the tilt drive camera in horizontal and vertical direction of rotation, thereby enabling the camera to cover the angle, the larger。 In short, the camera like the eyes of the whole system, to monitor the content into image signal, is transmitted to the control center monitor.
A。 Each layer in a corridor, can install ceiling dome, the camera required illumination is relatively low, in the general lighting can see people face and activities, at the same time it also has the nature of concealment, do not undermine the overall layout of beautiful.
The B。 In the center of the hall with a suction type integrated camera, it is the camera, lens, Haeundae, decoders are placed in the hemispherical shield, elegant appearance, can have a certain decorative effect. The camera can be used for 360 degrees, 90 degrees vertical rotation, six times three variable lens image can be magnified, reduced, hall staff activities can stick out a mile.
The C. In the elevator to install a needle hole camera, extremely subtle。 And connect the elevator floor display for convenient, accurate observation and recording of elevator operation and personnel into and out of the situation
D. At the Gaestgiveriet Hotel around, according to site conditions, mounting several outdoor point ( outdoor all-around Yuntai, decoder outdoors, outdoor all-weather protective cover, a camera, three variable lens ), and the hotel staff were recorded, especially to the parking lot should be careful to guard.
Through the above arrangement, personnel from the outside to the inside corners ( rooms except) activity is observed, if necessary, can also be the video recording preservation.
The 2 transmission part
The transmission part is the system image signal, the sound signal, control signal channel. At present the network video monitoring system has adopted the baseband video transmission method。 If the camera distance control center relatively far from the case, but also the use of radio frequency transmission mode or optical fiber transmission. General requirements of the hotel the transmission distance is closer, the baseband transmission mode, namely 75 ohm coax cable video. On image signal transmission key requirements in image signal through the transmission system, do not produce significant noise, distortion ( chrominance signal and a luminance signal does not produce significant distortion ), ensure that the original image signal ( the output from the camera image signal ) clarity and gray level was not significantly decreased.
A 3 control part
The control part is the" heart" and" brain", is to achieve the whole system function command center。 The control part is mainly composed of a main control console ( some systems and vice console )。 General control of the main functions: video signal amplifying and distribution, image signal correction and compensation, image signal switching, image signal recording; on camera, zoom lens, Haeundae, remote control, in order to complete the places under surveillance comprehensive, detailed monitoring or surveillance system; on defense deployment a garrison, and other functions。 The end zone the illegal invasion, an alarm signal is transmitted to the general control, can display and alarm control, alarm, flashing lights, front end of linkage, recorder. According to the system to guard against the risk grade and area key number number selection recorder. The need for continuous video cases, should choose" long delay video". When the whole system camera number many, may consider using" divider". " Divider" four segmentation, segmentation, segmentation and so on nine sixteen.
According to the request of the control system, considered in the general control whether to set up branch console。
According to the whole system power requirements, considering the power settings.
When the system has many far distance signal transmission, and also on long distance signal transmission mode ( video transmission, optical fiber transmission, RF balanced transmission and so on ), considered in the console should additional demodulation device ( corresponding to optical fiber transmission or a radio frequency transmission ), compensation device ( corresponding to video transmission), reducing device ( balance type video transmission) and a remote switch controller device ( corresponding to video transmission of the remote switch mode )。
The four part, display and recording
In the network video monitoring system, especially in multiple cameras network video monitoring system, are not generally a monitor corresponds to a video camera to display, but through the divider to several cameras from the image signal synthesis and displayed on a monitor, which is in a larger the screen on the monitor, the screen is divided into several equal area small pictures ( four pictures, nine pictures, sixteen pictures ), each small screen displays a from the video camera images, and through the long time delay video to several images recorded, for later.
Using security technology security first the criminals have a deterrent effect, make it not easy to commit the crime; secondly, once the invasion, theft and other criminal activities, security systems can be found, timely alarm, network video monitoring system can automatically record the scene of the crime and the criminal process, in order to timely detection, save a lot of manpower, material resources。