Until some time, the security of private property was carried out exclusively by the involvement of a person or a watchdog. Now, thanks to the development of high technology, this mission is partly entrusted to electronics. Modern wireless CCTV cameras are designed to help, facilitate, supplement and insure the activities of security services. What these devices are is discussed in the article.
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What are wireless security cameras?
A modern wireless video surveillance system is a list of special devices for recording events occurring with a certain radius of action and recording them on a storage device in a video recording format with a sound effect. You can purchase both separate cameras for surveillance, and ready-made sets of wireless video surveillance for a private house and apartment.
The development of wireless technologies has made the video surveillance process more convenient, simpler and more accessible. Today, a large number of new capabilities of video surveillance systems are used. Due to the use of digital data transmission via a radio channel, which is carried out from the camera to the receiver, the displayed recording has no interference. The receiver is connected directly to the monitor, or through a video recorder. Here you can use four cameras at once, which are simultaneously viewed on the monitor.
Wireless video surveillance systems can be used for:
- implementation of private and public safety;
- for monitoring technological processes;
- to monitor highways, stations and bridges in the transport sector;
- to prevent theft and resolve conflicts in the commercial sphere;
- conducting remote diagnostics in medicine.
This system is often installed at facilities without stationary utilities and when it is not possible to lay a cable.
The wireless video surveillance system consists of the following devices:
- wireless security camerasinstalled at the object of protection;
- stationary video recorder, which processes the information received from the camera and transmits it to the monitor;
- a screen with a control panel, which makes it possible to monitor in real time the events occurring at the protected object;
- the necessary devices for installing a video surveillance system.
Distinctive features of the system are:
- ease of installation;
- easy system setup;
- the ability to place equipment anywhere in the room;
- lack of cables that can ruin the interior;
- small size and weight of devices;
- the ability to integrate with other systems;
- the presence of a built-in battery, which allows the device to work smoothly, even in the event of a power outage;
- ease of disguise;
- the ability to control the system remotely.
Varieties of video surveillance systems
Today, wireless video surveillance is very popular. In this regard, well-known manufacturers strive to produce improved and diverse equipment that can satisfy all consumer needs.
The tracking system can be located both indoors and outside the building. Wireless outdoor CCTV cameras must be protected from adverse external factors: dust, moisture, dirt and low temperatures. Lower requirements are imposed on the internal devices. Their installation does not require the use of sealed casings and the use of heating.
By the type of body, the devices are domed, cylindrical, rotary and hidden.
The dome camera body is hemispherical, which is ideal for outdoor and indoor installation, fixing to the ceiling or wall without the use of special brackets. Cylindrical video surveillance devices have a housing that resembles a cylinder. These models are equipped with a special bracket for attaching the camera to the wall surface and adjusting it in the vertical and horizontal plane. Bullet cameras are equipped with an adjustable visor that protects the lens from light exposure.
PTZ cameras consist of a bracket on which a spherical body is attached. Its top can be made of plastic or metal, and the bottom can be made of acrylic or transparent plastic, which allows the lens to rotate freely, changing the vertical and horizontal position.
To control the area adjacent to the house, outdoor wireless dome or rotary video surveillance cameras are most often used, which have a high degree of protection against moisture and dust and are highly resistant to temperature fluctuations.
Hidden cameras for installing video surveillance in an apartment, in comparison with cylindrical and domed ones, have much smaller dimensions. Such devices are equipped with self-powered battery or battery. During operation, hidden cameras can transmit a stream of information to a laptop, tablet or smartphone via GSM, or record video to the built-in memory card.
Wireless video cameras for video surveillance by the type of transmission signal are of the following varieties:
- analog, where the work and signal transmission is based on terrestrial television;
- Wi-Fi cameras are represented by IP devices that work by installing an access point to the network;
- webcams, consist of a video camera, transmitter, receiver, converter and require the installation of specialized software;
- GSM cameras transmit a signal via a mobile communication channel.
WiFi Wireless CCTV Camera
For Wi-Fi camera operation, no additional wired connection to network sources and a computer is required. For their normal operation, a wireless Internet source is enough. The saved video can be viewed on both computer and mobile phone.
The main advantage is the ability to use the device even without a wired Internet connection. The disadvantage is the small distance between the camera and the communication object.
Helpful advice! The direct visibility of the Wi-Fi camera reaches 500 m. To increase this indicator, it is enough to install several intermediate access points and antennas.
A conventional Wai Fai home security camera allows you to control its position in the horizontal plane, rotating it 350 °, and in the vertical one - 100 °. The device has an IR illumination that allows it to work at night. The camera has a CMOS sensor with a minimum size of a quarter inch. The video stream is recorded here on an SD card up to 32 GB in size.
Many models are equipped with the function of live transmission of the image to the network, which allows you to observe what is happening at any distance from the subject from a mobile phone.
Wireless microcameras for covert video surveillance with WI-FI are widely used. They transmit a signal from a distance of up to 25 m. They can be placed throughout the house and watch what is happening, receiving information on a laptop, tablet or smartphone. The only drawback is the poor image quality.
Outdoor WiFi CCTV cameras can operate at temperatures from -20 ° to + 45 ° C. They are equipped with an external power supply, a camera, a network cable, a Wi-Fi antenna, a power supply with a flat plug, a software disc, and a wall mount system.
If you plan to install one or two cameras, they can work autonomously. When a large number of devices are used to monitor the house and the surrounding area, then it is necessary to provide for the installation of a network router that will collect all information from cameras and display the image on a monitor.
The most popular cameras of this type are KDM-6828A for outdoor surveillance, Zodiak 909W for outdoor and indoor shooting, Hikvision DS-2CD812PF-W for indoor. Buy wireless WI-FI video surveillance cameras can be within 4.5-7 thousand rubles.
Webcams and GSM video surveillance devices
This type of wireless home security camera is a unit consisting of several video modules (cameras) with connected devices and sensors that provide access throughout the telephone system and to a remote object.
Such a video surveillance system can be equipped with a motion sensor, temperature, illumination, smoke, gas, power outage, flooding, and an acoustic device that reacts to sound. All of them are aimed at alerting the system about danger. With the help of the software, certain parameter values are set, upon reaching which the camera starts shooting, and a notification is sent to the mobile device using the satellite.
There are two types of GSM devices on the market today: portable and block-type. The block system consists of modules that are mounted inside a metal box or plastic shield. Portable small wireless CCTV cameras look like a plastic candy bar and take up much less space.However, the modular video surveillance system is more flexible, which makes it possible to place video monitoring devices, despite the environmental conditions, in different places of the protected object at a distance of 200 m from each other.
Helpful advice! The control module should be installed in a secluded place to protect it from hacking by ill-wishers.
The main condition for the operation of GSM video cameras is the presence of a constant mobile signal, which is currently present even in the most remote places. However, in the absence of a signal, the video will be recorded on an SD card, which is mounted inside the case and protected from atmospheric precipitation. The price of a wireless CCTV camera of this type starts from 2000 rubles.
To monitor a workplace in an apartment or office, behind a staircase at the entrance, you can install video surveillance via a battery-powered web camera, the range of which reaches 5 m.
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The most popular wireless surveillance web cameras, which can be bought starting from 1500 rubles, are:
- budget camera Genius i-Slim 2000 AF, equipped with a minimum of functions, having a limited range of vision and low quality of video material;
- compact mid-level webcam A4Tech PK-130MG, which does not require additional settings;
- premium model Microsoft LifeCam HD-3000 with good color reproduction, high image quality and increased sensitivity.
Wireless video surveillance camera: device features
This type of device is actively used by consumers who care about the integrity and safety of their property, but strive not to attract additional attention. Due to the small size of wireless covert video surveillance cameras, they can be hidden in household appliances, interior items, walls, doorways, or fire alarm objects.
Helpful advice! Video peepholes can be hidden in doorways, slopes and walls, the use of which is not limited by law.
For proper covert control of the space in front of front door you can use an intercom with video surveillance for an apartment, the price of which is on average 4.5 thousand rubles.
This type of device is used exclusively for indoor photography. To obtain images with sound, you can buy a hidden wireless security camera equipped with a microphone.
Covert surveillance is carried out over the Internet. A web service and embedded processor delivers high quality images to your computer. Monitoring can be done from any internet browser. Here you can connect the service of SMS notifications and e-mail notifications, a special application for a smartphone.
Most often, wireless hidden video surveillance cameras are used for apartments, which can be bought from 1500 rubles. They are installed to monitor the attendants, nanny for the child. The cost depends on the functionality of the camera. More expensive models are equipped with a motion sensor, IR illumination.
Installing video surveillance in an apartment consists in placing cameras that are connected to the recorder. The recording here is done on the cloud storage.The use of CCTV cameras for a home with remote access provides an opportunity to monitor events in the apartment in real time.
The choice of a wireless video surveillance device should be based on the required functions. Thanks to a wide range of cameras, you can choose a specific model that is fully capable of meeting the requirements of the home owner. You should study the technical characteristics of the camera, which directly affects the cost of the equipment, and also read user reviews to ensure usability.