On the security monitoring system functions and their specific division
presentation layer, control layer security monitoring equipment is now everywhere, public places, residential, banks and even some companies, wireless surveillance as an increasing emphasis and booming emerging industries, security monitoring applications spread more widely, in view of This, in order to allow the works between providers and users when it comes to security monitoring systems have a more consistent understanding, let’s sort out for everyone under security surveillance systems division. For security monitoring system, according to the different parts of the system functions, we will monitor the entire security system is divided into seven presentation layer, control layer, processing layer, transport layer, execution layer, support layer, acquisition wireless rs232 transmitter and receiver layer. Of course, as more and more high device integration, for some systems, some devices may simultaneously with multiple layers of identity exists in the system. I. Presentation Layer Performance City is our most intuitive feel, it shows the quality of the entire security monitoring system. Such as surveillance video wall, monitors, treble alarm horn, alarm and automatic SPIDERS phone, etc. all belong to this layer. Two Control layer control layer is the core of the entire security monitoring system, it is the system most clearly reflected in the level of technology. Typically there are two ways our control analog control and digital control. Analog control is an early control mode, which usually consists of a controller or console analog control matrices for small local security monitoring systems, this control method is low cost, low failure rate. But for wireless av transmitter and receiver the medium and large security monitoring systems, this approach becomes complicated to operate and no price advantage, and then we should be more informed choices digital control. Digital control is the industrial computer control monitoring system as the core, it becomes complex analog control operation simple mouse clicks, the huge analog controller stack is reduced to a industrial computer, a huge number of complex and variable control cables as a serial telephone line. It will become a reality in the remote monitoring for the Internet to provide remote monitoring possible. However, digital control is not so perfect, the price is very expensive control panels, modules, wastage, the system might crumble crisis control lags behind so the problem persists. III. Processing layer of the processing layer may be referred to as audio and video processing layer, a transport layer to send it over the audio and video signals to be allocated, amplified, split, etc. process, the performance of the organic layer to be connected to the control layer. Audio and video distributor, audio video amplifier, video splitter, audio and video switchers and other equipment belong to this layer.
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