What are the basics of security monitoring?

The security monitoring system can reflect the monitored object in real time, image, truth, not only greatly extend the observation distance of the human eye, but also expand the function of the human eye, it can replace manual monitoring for a long time in the harsh environment, so that people can see everything that actually happens at the monitored scene, and record it through the video recorder. At the same time, the alarm system equipment alarms the illegal intrusion, and the generated alarm model is input into the alarm host, and the alarm host triggers the monitoring system to record and record.

Security monitoring system, according to the different functions of each cavity of the system, I send the circle to divide the entire security monitoring system into seven layers and a performance city is our most intuitive feeling, it shows the quality of the entire security monitoring system. Such as monitoring video walls, monitors, tweeter alarm horns, alarm automatic connection** and so on all belong to this layer.

Second, the control layer is the core of the entire security monitoring system, which is the most clear embodiment of the scientific and technological level of the system. Usually we have two options for control methods, which should be digital control. Digital control is to use the industrial control computer as the control core of the monitoring system, which turns the complex analog control operation into a simple mouse click operation, shrinks the huge analog controller stack into an industrial control computer, and turns the complex and huge number of control cables into a serial line.

It turns medium and remote monitoring into a reality, the host is very expensive, the module is wasted, the system may collapse across the board, the control is lagging behind, and other problems still exist.

The three processing layers may be called the audio processing layer, which will distribute, amplify, divide and so on the audio signals sent by the transmission layer, and organically connect the performance layer with the control layer. Tone splitters, tone amplifiers, splitters, tone switchers and other equipment all belong to this layer.

The four transmission layers are equivalent to the bloodline of the security monitoring system. In the small security monitoring system, our most common transmission layer equipment is the first line, audio line, for the remote monitoring system, we often use radio frequency line, microwave, for remote monitoring, we usually use the network to run, theoretically no attenuation, which ensures that the remote monitoring image is displayed without loss, which is incomparable to analog transmission. Of course, the return of high performance also requires high cost investment, which is one of the most important reasons why pure digital security monitoring systems cannot be popularized.

The fifth execution layer is the command object of our control instructions, and at some point, it is not very good to separate from the support and acquisition layer we said later, and we believe that the controlled object is the weak current execution layer equipment. For example: gimbals, lenses, decoders, balls, etc.

6. As the name suggests, the support layer is used to support the back-end equipment, protect and support the acquisition layer and the execution layer equipment. It includes brackets, protective covers, and other auxiliary equipment.

Seven collection layer is the key factor of the quality of the entire security monitoring system, and it is also the place where the system cost is the largest. It includes lenses, cameras, alarm sensors, and much more.

Shenzhen Joyoung Security Company Engineering Department personnel recommended, thank you!

To put it simply, it is actually three parts: front-end equipment, network transmission, and monitoring center. The main thing next to the front-end equipment is the camera, which mainly plays the role of image collection. The network transmission part is to connect the network with the real-time monitoring of the monitoring center.

There are a lot of products needed, and there are generally cameras and network cables. Surveillance annihilation client companies will generally provide.

A lot, you can find Xin Jiuding Optoelectronics.

Classification of monitoring systems:

Divided by system: remote monitoring system infrared monitoring system infrared night vision system network monitoring system divided by camera: digital camera NVR monitoring system and analog camera DVR monitoring system is expected to adopt.

The special certificates include "Safety System Installation and Maintenance Personnel" and "Safety and Security Design Brigade Cavity Excavation Assessor", which are officially announced and implemented by the Ministry of Labor and Social Demolition and Social Security. However, at present, the recognition is relatively low. Generally, the certificate of security is used "cost officer", "weak current engineer", "builder" and so on.

There is also the qualification certificate of training of various local technical defense offices or associations.

This major has only started this year, and some schools have this major A month ago, I got it from the news hall in the Hong Hall...

Related Majors· As long as the professional fiber is biased towards weak electricity, it can be · For example, the computer major, the building intelligence major, and the electronic engineering major can all be used

I don't have this certificate yet, so I learned it all by myself.