The need to protect private property is growing every year. If until recently, video surveillance system was considered a luxury and was available only to wealthy people, the current affordable prices for equipment allow you to monitor almost any location, and all this is available without huge financial outlays.
To put it into practice for the first time, the user should become acquainted with the basic nuances of such a device as a video surveillance camera. This material will deal with this. Of course, the principle of operation of the camera is not a topic that can be described in two words, but we will try to give the most complete picture, touching on the general points of this issue.
Video surveillance system can include absolutely different types of equipment, but in general it works like this: the video camera reads data and sends it to the recorder for processing. The user can see the recorded picture on the screen. The video camera can record the data or display it in real time (without recording).
There are several types of video surveillance:
Video surveillance on an analog system
By means of AV-cable the video camera is connected to the recorder, which is connected to the monitor. To connect such equipment to the PC directly you will need to install additional “gimmick”, namely – video capture card.
The appearance of digital devices (IP-cameras) has led to a massive displacement of analog systems, including analog television. Digital cameras offer a wide range of features, which could not fail to attract the attention of progressive users who want to always keep up with the times. What is the main difference between digital and analog systems? Described in more detail in another article – analog and digital CCTV cameras differences
For example, digital equipment is equipped with motion sensors and sound recording function. It encrypts the signal and interacts well with any other modern equipment. Developers offer their customers a variety of interesting and life-saving services which integrate perfectly with IP devices. Analog video surveillance does not boast similar options and advantages.
But this does not mean that analog video cameras have lost customer demand. Equipment of this type is a great alternative and in some specific cases is considered the best option to increase the level of security on the protected territory.
Video surveillance based on IP-cameras
Installing a digital camera does not involve any particular difficulties, because only the Internet is required for the full operation of the device. Any user can cope with the task. A video recorder is not required in this case.
The IP camera can be connected to the local network in two ways: wired (via a special cable) and wireless (via a Wi-Fi router). To configure the device, you need to assign a unique IP address to it. This can be done in the router interface.
In the case where the user wants to take the path of least resistance, he has the opportunity to connect the IP device to any convenient cloud service. With this option, he will not have to perform the above steps.
What an IP video surveillance camera consists of:
- CDD Sensor;
- Video capture device;
- Image compression unit;
- Processor and IP server;
- Flash memory;
- Network connection interface;
- Information output port (audio and video);
- Signal inputs and outputs (notification sounds, etc.).
Installing video cameras: where is the best?
Video control devices are divided into two types: outdoor and indoor. Each user must independently determine the optimal location of cameras on the perimeter of the protected object, because in this matter everything is too individual. The most important thing is that the equipment must fulfill its direct purpose – quality and clear monitoring of the specific location.
Digital video cameras are often installed at such facilities as private houses, apartments, factories, warehouses, banks and shopping centers. The main advantage of digital video surveillance systems over analog devices is that the user can monitor what is happening in the protected area remotely. All you need is Internet access and nothing more.
If a user does not require detailed data recording at a small guarded site it is more reasonable to give preference to an analogue system. Installation of such systems should be done by a specialist. Installation with your own hands is not considered here.
In addition, you should take into account one very important point: it is better to spend more time on finding the best place to install the device with a good recording angle, because it is extremely problematic to make any adjustments to such a system. And for each innovation you will have to pay extra for the master.
And now a couple of words about what the user gets when installing modern video surveillance cameras in the protected area. The main advantages:
- Real-time monitoring of the object, with the possibility of obtaining old data (provided that the information is recorded on the media).
- Quick search for the information of interest in the archive through the filters. For example, the user can find all records in which the man appears in black clothing.
- Flexible data recording settings. For example, the video camera will react only when a speaker appears in the frame. This allows you to capture only the most relevant data, and not waste time looking at records where nothing happened.
- Possibility to store data in any convenient way (cloud service, external drive, server).
Equipment for small objects is not characterized by extensive functionality, but the basic options of the device allow you to get everything you need. Video surveillance cameras designed for installation at large sites are equipped with additional features (thermal imaging cameras, panoramic shooting mode, night mode shooting and more).
To facilitate the process of managing a large-scale video surveillance system, there is special software (there are alternatives on the network, so the user chooses the appropriate software). It can be used to make lightning-fast adjustments to the work of all installed cameras. This is very convenient and time-saving. If it is difficult to choose the software for yourself, it is recommended to consult a specialist.
Given the democracy of the current prices for video surveillance devices, the user gets at his disposal what he had only dreamed of before. Now it is commonplace to have a video surveillance system at a private property.