One of the useful functions of information technology is access to CCTV cameras via the Internet. Live recordings and broadcasts are viewed from different parts of the world. You can watch what is happening from a device that connects to the WI-FI network. The camcorder combines a module for generating sound and digital video stream, as well as a lens and a memory unit.
Necessary equipment for organizing a video surveillance system
The formation of an observation system at the facility is not a difficult task; the user successfully copes with it with a minimum amount of information in the field of PC and related equipment.
The digital recorder receives the recordings from the tracking device, processes the incoming signals from the analog camera and records them on the information carrier. The memory block can be stationary, such as a hard drive, or removable. Requires a server or software interface connection to configure the IP camera for monitoring over the Internet.
In the first case, you need to log into the browser and use a specific page. Registrar manufacturers provide customer with instructions on how to download a browser plug-in to facilitate connection. The software interface assumes work through the software that comes on the hard drive when the equipment is sold.
The DVR, router, camera are connected via a local network using cables or wirelessly. The router organizes a local network if it is formed via WI-FI and serves to communicate with the Internet. Programs and utilities provide remote viewing on a computer or TV.
Specifications when choosing a camcorder
Analog cameras are directly connected to the screen of the receiving device and work with PAL and NTSC video signals. The devices record information on a computer or video recorder. Digital IP cameras convert information into digital format and broadcast the image to the cloud via wireless transmission over 4G, WI-FI, 3G networks. The user observes the situation from being far from the object on the screen of a phone, smartphone or other gadget.
When buying, pay attention to the quality of the lens, which is provided by the number of megapixels. The matrix sensitivity and the possibility of using it in a wide range of dynamics depend on the number of dots on the screen.
Features that you need to pay attention to in order to connect to a CCTV camera without problems:
- manual parameter setting:
- the presence of a video input and output for direct connection to a TV;
- type of battery (lithium-ion, nickel-cadmium);
- color or black and white.
The photosensitivity of the device plays a role, since observation is carried out around the clock. The infrared camera works in the dark. If this property is not in the specifications, the IR illuminator is purchased additionally.
Ways to connect to a CCTV camera
The instructions provide information on how the camera works. The device operates without an injector via a network wire via PoE.The removed features may only be available with a specific browser, such as newer Firefox or Chrome, other installations use an outdated version of IE. The broadcast format on the Internet also differs, some require VLC, others work with Flash Player or Java.
Connection is made in the following ways:
- WI-FI - wireless transmission;
- Ethernet - a cable bus (twisted pair) is used;
- PoE is a wired connection, but power goes through the individual wires of the pair rather than other cables, an injector is required.
The camera is protected from hacking with a password and location address. Individual IP code is not a secret, as is located at a standard address, and the tracking modules easily respond to queries from search engines. CAPTCHA input is added to exclude automated intrusions. Modern monitoring modules include self-tuning functions and easily interact with various services and programs.
Through the Internet
You are logged into the web interface of the router, for which the standard code 192.168.1.1 is written in the browser line. The user chooses a name and password, in the factory settings, usually admin / admin. In an additional application, you need to go to the WAN sub-item to set up port forwarding. Selected section "Virtual server" in Russian or English letters.
Entering information:
- the name of the camera, for example, by the premises of the house;
- port number, usually 808X, the last digit indicates the number of the video device;
- IP address similar to the specified parameter;
- the port that is registered in the settings of the video camera, if not, then you need to write Internal port - 80;
- the protocol is put - TCP.
After that, you can connect to the camera from any gadget to view pictures.
The operation of the video device is configured via an Internet browser or using professional utilities, for example, Ivideon Server.
Via computer
Used wires:
- coaxial cable transmits a high-quality signal for 100 meters without amplifiers;
- twisted pair combines 8 wires and reduces the cost of wiring individual wires.
Analog models are connected directly to a computer using a video capture card. The devices are installed in the system unit in a PCI-e or PCI slot with 4-16 pin inputs. This method is not suitable for a laptop. Another method is to use a USB converter. The inexpensive module is compatible with laptops and computers, but is not very reliable. You can see the recording remotely if you connect the device to the Internet.
Modern IP cameras are designed to connect video surveillance to the Internet, but you can make a wired connection through the DVR and directly to the computer. A coaxial cable is installed at a distance of up to 100 m. If it is necessary to transmit information further, twisted pair with amplifying transmitters are used.
Through the TV
The video signal is fed to the center contact, and the shield is connected to the external one. For analog devices with wire outputs, an adapter is made. On the one hand, the BNC is turned on, and on the other, the tulip connector is placed. The connection is made with a coaxial cable (resistance 75 Ohm), the power supply is connected.
To view the video, select the mode:
- button "SOURCE" on the TV or on the remote control;
- on the OSD menu, go to the sub-item "composite" or "AV".
If the camcorder is equipped with four outputs, most often there are two pairs of wires. Yellow conducts the signal, and red sends power. The rest unite and work in a common mode. In order not to be mistaken, you need to study the instructions, where there are instructions on this matter.
Setting up remote access to video surveillance
You can get the job done by using a cloud server, mobile Internet, or via a computer. The first method requires a minimum of effort. The subscriber part of the program from the proposed service list is installed on the control device. The setting is done according to the instructions provided with the software. This method works with mobile and cable internet.
The setting option is gaining popularity through a WI-FI router and direct access to a video camera. The second method is more mobile, but it is carried out in the presence of special types of cameras and corresponding computer programs.
Most often, video surveillance devices are equipped with software, where there is detailed instructions for setting operating parameters. The process consists in setting up the LAN, accessing the Internet from the server, connecting and installing the camera. The program independently finds a video camera and determines its MAC and IP address. Distributed programs "Line", Axxon Next and Ivideon, which differ in the number of simultaneously servicing video devices.
