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Hotel - Network video surveillance system solutions

    

Introduction
Network video surveillance system security technology system is an important component in the part is an advanced, the ability to guard against the highly integrated system that can control the camera and its auxiliary equipment (Haeundae, lens, etc.) were directly watch Surveillance of places, at a glance at the same time it can be places of surveillance images and voices of all or part of the record, and this is the future of some of handling the incident provided a convenient conditions and important basis for network video surveillance system at the same time can also And the burglar alarm and other security technology to prevent linkage system operation, the ability to guard against more powerful.
Security technology devices, equipment and components by the system can achieve rapid response to invaders, and promptly found and arrested criminals, the criminals have a strong deterrent effect. The security technology can promptly discover a hidden danger to the accident to prevent damage and reduce accidents and the prevention of fires, so it is of public security work in a very important means of prevention. Particularly in highly developed modern technology today, crime more intelligent, more subtle means to strengthen the modernization of security technology becomes more important.


Needs for system design
Hotels, guesthouses, and other units due to the nature of the relationship, primarily for guests to provide accommodation, catering, entertainment and leisure businesses, access to many officers comparison, represent the vast majority of foreign guests, and the criminals just use this environment, Sneaked into hotels, guesthouses opportunistic crime, a direct impact on the safety of guests and property safety, a direct impact on hotels, guest houses, the reputation of the financial room, cash-flow prospects, etc. is the main venue for networking video surveillance system, alarm, communications phase With the security system is an effective means of defending the same time preventing the installation of fire alarm system, fire broke out in the embryonic stage in time fight to avoid a major fire accidents.


System design
Network video surveillance camera system alarm system from some (sometimes there are pickups, alarm detector), transmission parts, and the display and control part of the records, and other components. In each section has also contain more specific equipment or components.
1. Camera part
Image is part of network video surveillance system the forefront of the whole system is the "eyes." It layout of the premises under surveillance in a position to field angle coverage throughout the surveillance of various parts. Sometimes, larger establishments under surveillance, in order to cut the number of cameras used, and simplify the transmission system control and display system, the installation of the cameras on the electric (the firing) variable focal length (variable power) lens, the camera can Observation of the distance farther, more clearly, while also cameras installed in the electrical Haeundae, the controller of control, can lead to Haeundae camera for horizontal and vertical direction of rotation, so that cameras can cover the angle, area Greater. In short, the camera as the eyes of the whole system, to monitor its content into the image signal, sent to the monitor on the control center.
Design deployment points:
a. at every level within the corridor, install Xiding-black-and-white hemisphere, the camera illumination requirements of the relatively low, in general lighting can clearly see the faces and activities, it also has hidden, does not destroy The overall layout of aesthetics.
b. In the central hall with a video camera Xiding-integration, it is the camera, lens, Haeundae, decoders are on the hemisphere type of protective mask, looks nice, can have a certain decorative role. The camera can do 360-degree level, vertical 90-degree rotation, six times the three images can be variable lens to zoom, hall of the activities of the staff can clear at a glance.
c. The installation of an elevator in the pinhole-type camera, very hidden. And connect the elevator floor in order to facilitate the display, accurate observation and recording of the lift operation and personnel out of the situation
d. in hotels around the venue under the circumstances, the installation of several outdoor fixed point (all-round outdoor Haeundae, outdoor decoder, outdoor all-weather shields, cameras, three variable lens), and out of the hotel staff can be observed Record, especially on the car park should carefully guard against.
Through the cloth point, the officers from outside the hotel every corner of the house (except for room) activities can be observed, if necessary can also save video.
2. Transmission parts
Transmission system is part of image signals, audio signals, control signals, and other channels. At present most of network video monitoring system using video-based band transmission. If the camera further away from the control centre of the circumstances, have used radio transmission or optical transmission methods. Hotel general requirements of the distance transmission are relatively recent, may be base-band transmission, which is 75-ohm video coaxial cable. Image transmission of signals in the key requirements in image signal transmission system, not a clear noise, distortion (color and brightness signals do not have a clear signal distortion) to ensure that the original image signal (from the camera output signal of the image) Clarity and gray levels not decreased significantly, and so on.
3. Control of the
Control of the entire system is the "heart" and the "brains", the entire system is the command center. Some of the major control by the control panel (there are some system of the console). Total console main features are: video signal amplification and distribution, image signal correction and compensation, image signal switching, image signals in the records, etc.; the cameras, electrical zoom lens, Haeundae to carry out remote control, to be completed on surveillance Place a comprehensive, detailed surveillance or tracking and monitoring; standoff for deployment of the system, Chefang, and other functions. - The current standoff with the illegal invasion, the alarm signal is sent to the dashboard, can show the police standoff, police linked, flashing lights, front lighting, video recorders and other equipment. According to the system to prevent the risk rating in the key regional locations and the number of digital-video recorders choice. The need for video of the circumstances, the choice should be "Zhang Yanshi video." When the whole system of digital-camera in many cases, may choose to consider "more" "Multi- There are four separate, nine division, 16 division, and so on.
According to the requirements of system control, the control panel to consider whether to set up outside the console.
According to the requirements of the entire power supply system, consider the power settings.
When the system have long-distance signal transmission path, should be based on long-distance signal transmission mode (video transmission, optical transmission, RF balanced transmission, etc.), the control panel to consider whether additional demodulation devices (for optical transmission or RF transmission), the compensation device (for video transmission), the reduction devices (for balanced video transmission) and a remote switching device controller (for remote video transmission mode switch), and so on.


40, and records show some
In the network video surveillance system, especially in Taiwan have a network of video cameras monitoring system, the general is not a monitor corresponding to a video camera, but through several  bring the camera Image of signals at the same time displayed on a monitor, that is, in a larger screen monitors, the screen is divided into several small screen size equivalent to (d screen, the screen 9, 16 screen), each Small screen shows a video camera sent images, and then by Zhang Yanshi to several video images recorded in preparation for subsequent search.
Use of security technology for security of the first criminals have a deterrent effect, so that it can not easily crime and secondly, once the invasion, theft and other criminal activities, security system to detect and timely report, the network video surveillance system Automatically record the crime scene of the crime and criminals, so that timely detection and save a lot of manpower and material resources.


　

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