Features and varieties of CCTV cameras with a SIM card

Sustainable cellular communication in the country or in a country house greatly simplifies the protection of buildings by technical means. A CCTV camera with a SIM card instantly transmits information on the penetration of intruders anywhere in the world. Choose equipment based on the characteristics of the object. Installation and configuration is no more difficult than using a smartphone.

GSM surveillance limitations

Modern video cameras in most cases give out a picture with the number of pixels (individual image points) 1920x1080, which is close to 2MP resolution.

Equipment with such parameters when transmitting streaming video creates a traffic of 15 Mb / min. For a day, depending on the established mode, the total amount of information transmitted will be from 10 to 20 GB, and per month from 300 to 600 GB.

Cellular operators rarely offer rates with such an Internet limit or require for use from 1000 rubles per month.

On the other hand, receiving and viewing an image from a remote home around the clock is not necessary. A camera equipped with a motion sensor will start recording and transmit a signal exactly at the moment of penetration, which is enough to respond.

Use cases and available information

Often the only way to quickly obtain information from remote sites is through the networks of mobile operators.

The situation is typical for holiday villages, small settlements and separately located country houses.

GSM CCTV cameras with a SIM card for home or garden continuously monitor the situation on the street, inland and in the premises. In the event of the appearance of unauthorized persons or equipment, they can give the owner the following types of information:

• SMS message about the detection of signs of movement in the coverage area of ​​the lens. At the signal, the property owner can see the events.
• MMS message in the form of a single frame or a short video clip. Recording is triggered by the signal of the motion sensor of the camera or when the alarm devices are triggered.

For cameras connected to the Internet, the owner of the equipment can turn on the broadcast in real time at any time. For example, to see what children, pets, or hired workers do.

Some mobile cameras have a memory card slot. The archive is available for viewing at any time.

Manufacturers of video cameras and Internet providers provide free or for a small fee cloud storage services and access to registered users.

In GPRS, GSM, 2G networks, the main function is to view still images or short fragments. For real-time footage, a 3G or 4G level connection is required.

GSM video surveillance allows you to control dome and PTZ cameras, adjust focus, zoom in or zoom out. Devices can be included in a single system of "smart home".

Equipment composition and connection options

Depending on the goals, the configuration of the site and the layout of the house, various in structure autonomous video surveillance systems are used.

Video camera with GSM module

In the simplest version, they use one analog camera with a built-in device for connecting to a cellular network - the electronic circuit provides a place for installing a SIM card.

When using such equipment, an Internet connection is not required.

When motion is detected, the user receives an SMS notification about the “alarm” or MMS with a photo of the events. The control signal is formed by software or remote motion sensors.

There is a mode for receiving images by SMS request or according to a predetermined schedule.

Using the base module

When it is required to receive information from several devices, specialized GSM modules are used.

For each camera, the device has a separate input and a detection sensor. With the help of microphones “tied” to the camera, they listen to sound information.

A large amount of information received does not allow to establish a full broadcast. The device operation algorithm provides for traffic reporting and transfer of still images to the user's phone.

When programming, it is possible to bind several phone numbers where messages and videos will arrive. Mandatory viewing function at the request of the owner at any time.

IP cameras

Digital technologies make it possible to realize in a compact device all the possibilities for receiving, storing and transmitting high-quality images. Advanced functionality provides the owner with additional service capabilities:

• Information is continuously recorded on the built-in or external memory card, which allows broadcasting even with poor wireless quality.
• Precise manual tuning of a hardware, built-in or external motion detector prevents false messages caused by the appearance of pets in the detection zone.
• The infrared illumination is switched on under the control of electronics, which saves energy consumption. This is important when using redundant power supplies.
• Through speakers and a microphone, two-way communication between the user and people in the vicinity of the camcorder is carried out.

Well-known brands provide cloud storage services. To connect, just enter the serial number or MAC address of the camcorder.

Important Features

Selecting equipment, take into account the important parameters of video cameras:

• Terms of Use. Outdoor devices are provided with: protective covers against precipitation and dust, heating of the electronic circuit and the protective glass of the lens, visors from sunlight.
• Supported transmission technology: MMS - for photos and short videos, GPRS (2G, 3G, 4G) - for watching videos.
• The angle of view, depending on the focal length. The larger the angle, the worse the details are distinguished.
• Image quality (resolution). With high quality, the picture allows you to see the details, but the transmission process slows down due to the large amount of information.
• Lens type and focal length. Fixed always "sees" in one version. Adjustable allows you to manually adjust the image based on the characteristics of the object, which can be useful when moving the camera to another room.
• PTZ technology allows remote focus control, image zoom, camera rotation in different planes.
• The presence of built-in infrared illumination for shooting in the dark, its power and software control of the inclusion.

Cameras with good features lose all the benefits of unstable cellular communications. Do not overpay for additional features that cannot be implemented in practice.

Installation Features

Installation of remote video surveillance with cameras equipped with sim cards is available to any user. It is important to consider several nuances:

• The mobile operator is selected based on the cost of services (tariffs), as well as on the basis of communication quality indicators at the installation site.
• Pay attention to the signal level at different points in the room (land). You can navigate by the indication of the cell phone (the number of strokes at the antenna). Choose the best place.
• If necessary, install an external antenna or amplifiers of a cellular signal - this will improve the quality of communication.
• They purchase and connect an uninterruptible power supply if the power supply is often turned off in the village.
• The lens cannot be directed towards the movement of the sun across the horizon. They take into account that at different times of the year the light comes from a different angle, and possible flare will not allow to get a high-quality picture.
• In the rooms, the camera is mounted on the walls with windows, directing the lens into the interior of the room.
• In the case of using the GSM module, the wiring from the cameras is carried out no closer than 15 cm from the mains.

IP devices will require special applications to work, which are available on the manufacturer’s website.

Popular manufacturers

Surveillance cameras with a built-in SIM card are present in the lines of all equipment manufacturers. When choosing, they are guided by the necessary functionality, price and customer reviews.

Among the brands stand out for quality and characteristics:

• BEWARD, Russia. It produces the whole range of equipment for video surveillance. The BEWARD CD630-4G model is designed for outdoor and indoor installation, it is equipped with IR illumination (up to 25 m), noise reduction, dynamic sensitivity adjustment.
• Zodikam, Russia. The Zodikam 202 camera is installed outdoors or indoors, the minimum temperature is -30ºС, IR illumination is up to 30 m.
• KARKAM, Russia. KAM-004G, illumination range of 50 m, street design.
• Camera SimPal-G312, China. Sends a photo from the object to e-mail on request, when a motion sensor or any other connected security device is triggered. SimPal-G4 camera - upon an alarm, dialing occurs, sending SMS or messages to mail.
• Sentinel MMS Micro (Russia) is designed for small rooms, the range of the sensor 5 meters.

The choice of surveillance cameras with the ability to transmit a signal in cellular networks is a reliable way to increase the security of remote objects. Installation and configuration do not require experience with digital devices. The range of leading manufacturers is wide and allows you to create systems of any complexity.