The easiest way to choose a video intercom for an apartment. Usually in this case, the user needs only one internal panel with a monitor. The choice of a video intercom for a private house is more difficult. Not only are there more places where the owner will be willing to take on the challenge, the area around the house can have multiple entrances or high-risk areas for intruders to enter. Therefore, it is necessary to build a complex system. Let us consider in more detail all the nuances of choice in a particular case.
Video intercom for apartment
To choose a video intercom for an apartment, you need to take care of the convenience of its use. Perfect fit wall-mounted indoor unit. This will allow you to perfectly fit the intercom into the interior. In addition, it is advisable to buy a device with memory. This option allows you not only to take pictures of visitors, but also to keep a log of actions. It is easy to find out what time the children came from work. Full information is provided on the number of visitors, attempts to call from the central dialer to the access access control system and much more.
For an apartment, a small, stylish video intercom is bought, with one monitor and a built-in power supply. This is enough to meet most needs. For analog CCTV cameras, a black and white monitor is enough. But if a high-quality peephole camera and additional video recording of what is happening at the door is installed, you can buy a more expensive color model. More details about the choice of color will be written below.
Video intercom for a private house
First, for a private house you need buy a model with an electromechanical lock. It provides more security. A device with an electronic lock simply unlocks the gate or gate when the power is turned off, giving access to intruders. And the electromechanical will remain locked. If necessary, it can be opened with a classic key.
Secondly, in a private house you will need dual panel system. One must be installed at the entrance gate. So you can let the gardener, the postman, the attendants. To provide additional security measures, the second level of control is organized directly at the front door. Here, the second calling panel and video surveillance cameras will allow you to identify the intentions of the visitor, as they say, on the near approaches.
It will also be useful dual monitor system. The owner does not need to go down, for example, to the front door. He will be able to talk to a visitor from his office or workshop. In addition, video intercoms with 2 screens allow you to make a call between them. This makes it possible for the inhabitants of the house to communicate with each other without traveling through the entire house.
On a note! On a distributed territory, you can build an arbitrarily complex system. For example, using remote access, view what is happening at the gate. Or by installing a powerful outdoor IR illuminator, to conduct full monitoring of the entire territory at night.
Color or black and white screen
There is an opinion that a home video intercom that transmits a colorful picture of a visitor or surveillance area is more informative and convenient. In practice, this is not the case. There are several key moments when black and white front door monitor preferred.
- When using low-resolution analog cameras, color information is noisy, and detail suffers greatly.
- When the light falls, the colors fade, merge.
- In night shooting conditions, it is simply impossible to convey colors.
- Under equal conditions, the number of shades of black is greater than that of a single color channel.
The foregoing does not mean that a color video intercom is just money down the drain. Digital system equipped with good cameras, will form a high-quality picture on the screen. However, if you choose a device for the office or with connection to a driveway video intercom that does not offer a tolerable picture, it is recommended to stop at a black and white monitor.
On a note! The human eye can distinguish many more shades of gray than colors. Therefore, the picture on a black and white display will be clearer, more informative. Even a camera pointed at the gate from a distance will show more detail in grayscale.
The recommendation for choosing a monitor is simple: you should focus on the purpose of monitoring and the characteristics of the installed cameras. In addition, a black-and-white monitor is perfect for giving or for a country house, allowing you to save money without sacrificing security.
Call panel selection options
For all its seeming functional simplicity, you need to choose the right call panel. It can be quite a complex system. Including the ability to react and act in accordance with the settings for events.
Minimum entry panel configuration as follows:
- call button, preferably with backlight for identification at night;
- with a reader of cards, TouchMemory keys, other types of identifiers;
- with a camera that has a backlight for night vision;
- with a visor to protect from rain and sunlight that illuminate the camera.
Further, depending on the needs of the owner, the functions of the video intercom can be expanded directly by its calling panels. They may have 180 degree cameras. Devices are available to which you can connect several observation points at once. There are wireless call panels.
To solve specific problems, you can buy devices with special features. For example, providing identification of objects at night at a distance of up to 50 meters, with a motion detector, with video recording on its own media in case of a break in the communication channel with the central panel of the system.
But the main thing that a high-quality outdoor panel should have is strength and durability. These modules are made of metal, covered with non-combustible powder coating. It is recommended to buy a panel with metal buttons. In addition, the design of the module must be such that it is impossible to open or dismantle the block with simple methods and tools.
Modern intercoms, even those that work with analog cameras, are complex computerized systems. They can be both fairly simple and equipped with their own operating environment and fine-tuning tools for responding to events. It is quite difficult to list all the functions of modern devices. Therefore, it is worth dwelling on the main additional options that are useful for the owner.
Depending on the quality of the connected cameras and the complexity of the video intercom itself, it is proposed to work with software or hardware motion sensors. The former are the result of video signal processing. The system determines the movement by the difference between frames. The user can adjust the response sensitivity and even detection zones. To work with a hardware sensor, the video intercom must have the appropriate input.
On triggering, a variety of actions can be carried out:
- a record is kept on the motion sensor until the actuation stops;
- take a picture of the field of view of the camera;
- turn on lighting or IR illumination for better visibility;
- log the event.
On a note! Complex systems can even identify patterns. Based on the signal from the motion sensor, it is easy to recognize the license plates of the car and let it through the gate, do other actions.
Video intercoms that work with 2, 3, 4 or more video surveillance cameras can act as a means of fixation. The device can record what is happening at night, be activated according to a schedule, and work on a motion sensor signal. Such a system with a built-in video recorder useful for the office. It is capable of both regulating and managing access, and acting as a security system.
Work in mobile networks
DVRs with a gsm module are a real find for places where there are no other means of data transmission. When some event occurs, for example, a motion sensor is triggered, the device can take a photo and send it as an MMS to the owner. Or notify with a call to the phone about a power failure, the start of battery operation, an event, a violation of the perimeter.
Growing in popularity video intercom control via SMS commands. A device with a gsm module can be remotely reconfigured, with one message it is easy to open the door, do other actions.
Important! It is worth noting that this management technique has a low level of security and can become a loophole for intruders.
All of the options listed are not necessarily offered in expensive video intercoms. All useful features are often offered by fairly simple models that can be integrated into access access control systems with a coordinate connection system.
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