What is security system engineering, please?
Security system is an emerging professional which has been paid more and more attention. At present, the application of security system is becoming more and more popular and the content of technology is getting higher and higher. Almost all high and new technology can promote its development, especially the advent of the information age, but also to provide an opportunity for the development of the profession. But as far as the monitoring industry is concerned, the system composition has not been clearly divided, which makes communication between the engineering company and the user talking about the security monitoring system very inconvenient.
The control layer is the core of the whole security monitoring system, and it is the most clear embodiment of the system's scientific and technological level. Usually we have two control modes analog control and digital control. The simulation control method in the early stage, the console is composed of controller or analog control matrix, which is suitable for small local security monitoring system, this control method has lower cost, the failure rate is? But for the large security monitoring system, this way is complicated and no price advantage, then we it should be the choice of digital control. Digital control is the industrial computer as the control core of the monitoring system, it will complex analog control operation into a simple mouse click operation, the huge analog controller stack shrunk into a computer, control cable will be complex and huge number into a serial line. It can change remote monitoring into reality and provide possibility for Internet remote monitoring. But digital control is not so perfect, the price of the control host is very expensive, the waste of modules, the system may collapse, the crisis is still lagging behind and so on.
For security system, according to the different functions of the system, we divide the security monitoring system into seven layers: presentation layer, control layer, processing layer, transport layer, execution layer, support layer and acquisition layer. Of course, because of the increasing integration of devices, for some systems, some devices may exist in the system at the same time as multiple layers.
