Outdoor Security Camera

With the help of an outdoor video surveillance camera, you can monitor the area of ​​private households, crowded places around the clock. Subject to some criteria for choosing an outdoor camera, you can easily see people’s faces, see the most inaccessible areas on the site at any time of the day.

First of all, you need to understand what you want to see with your outdoor video camera. Based on this, it is worth planning a future video surveillance system. Initially, there should be a site plan on hand. According to the site plan, you need to decide on the type of video recording devices and their number.

Types of outdoor video cameras

  • Swivel.
  • Irrevocable.
  • Wired.
  • Wireless.
  • With video recording.
  • With a Wi-Fi module.
  • With GSM module.
  • Night vision cameras (IR emitter).
  • Analog.
  • Digital.
  • Solar-powered.
  • Rechargeable.
  • Mains powered.

Outdoor Ip Camera For Video Surveillance

The IP video camera transmits the image using a digital signal. Each device of this type has an IP address that can synchronize with any registrar, smartphone, tablet, and other devices. The IP camera connects to the Internet using an Ethernet wire, WI-FI, or a mobile 3G/4G data connection. To join the device to a PC, it is enough to install the software on the computer (it comes with the video camera), and you already have a simple video surveillance system.

Features of outdoor IP video camera

  • The resolution of an IP video camera can exceed 12 megapixels (4K).
  • Due to the low power consumption, the cameras are powered by an adapter or via a PoE cable.
  • The method of connecting IP cameras to a personal computer differs depending on the number of connected devices. For one camera, a network card is connected via the LAN interface; for two or more devices, a switch is connected to the LAN, an IP camera is connected to the controller, then a network connection is made with a new network address assigned to each camera.

Multistream broadcast

  • Any IP camera broadcasts at least two streams. One stream (primary) is used for recording, the second (substream) of lower resolution is sent to the monitor. Most IP devices support three streams: for registering, for a monitor, and for a mobile device. But some models support up to 10 streams.

Corridor mode

  • There are IP cameras that support vertical shooting, 9:16 instead of the usual 16: 9. This shooting mode is best suited for long narrow corridors, tunnels. If the “corridor mode” is not set, it will not be possible to install it programmatically.

Signal transmission methods

  • Wired. Provides stable and high-speed data transmission over cable channels, which, by the way, have length restrictions depending on the type of cable. So, for twisted pair-100 m, for coaxial cable 500 m, 100 km for fiber.
  • Wireless. Wireless data transmission is provided by a built-in Wi-Fi module or a 3G / 4G module. Physical barriers and electromagnetic interference limit the range.
  • Hybrid. To improve one or another data transmission, a hybrid system is often used. This is a combination of wired and wireless methods.

Lens view

  • Monofocal. The lens is in one position, and there is no possibility to change the angle of view.
  • Varifocal. The viewing angle can be changed manually.
  • Transfocal. You can adjust the viewing angle remotely and manually.

Connection type

  • Wired connection. A wired connection is carried out via an Internet cable through an RJ-45 connector.
  • Wireless connection. Management and data transmission via Wi-Fi, GSM, 3G / 4G.

Advantages of an IP video camera

  • For better detail, there are cameras over 12 MP.
  • Possibility of panoramic and high-speed (up to 50 frames/sec) shooting.
  • By connecting to a recorder or server, you can connect many more devices simultaneously compared to analog cameras.
  • The POE system allows video transmission and power supply over a single cable.
  • Possibility of analytical shooting (for example, notify the operator about the detection of the desired object in the general mass of people, initiate the activation of the alarm, and much more).

Disadvantages of IP video camera

  • Difficulty setting up multiple devices at the same time.
  • Internet connection addiction.
  • The signal from the IP-video camera can be interrupted and arrive with delays.

Outdoor Analog Cctv Camera

Let’s compare an analog and digital IP camera, then in terms of picture quality. The difference will not be noticeable (if we talk about quality up to Full HD inclusive).

The principle of operation of an analog camera is to convert the light flux that is focused in the CCD into an electrical signal. The signal can be output to a monitor or a regular TV. An analog system can include several devices with simultaneous broadcasts on the screen. For this, as well as for recording video, a video recorder is used.

Characteristics of an analog outdoor video surveillance camera

Analog CCTV Camera Formats:

CVBS format. Nobody produces devices with such a format, but you can use the old cable route for other forms.

Advantages

  • One cable (coaxial) transmits not only audio and video files but also power.
  • The price is lower than for IP cameras.
  • Data transfer without delay.
  • Transfer of video files without loss of quality up to 1200 m.
  • Cyber-protected, since it is impossible to intercept the stream, only the DVR is connected to the network.

Disadvantages

  • Dependence of the analog system on the recorder.
  • The presence of noise (unwanted signals masking the valuable signal component).
  • The maximum resolution for analog systems is up to 8 MP.

Ptz Camera For Outdoor Surveillance

With the help of a PTZ camera, you can significantly increase the area of ​​video surveillance. With the built-in ZOOM system, you can see even the most minor details of the object of observation. On top of that, the tilt mechanism can significantly save your budget by reducing the number of non-reversible cameras.

PTZ cameras have a couple of features:

  • Swivel mechanism.
  • There is a program to compensate for possible picture distortions caused by camera movement.

Features Of Ptz Cctv Cameras

  • Magnification mode. The assortment of the ZOOM-mode ranges from 3 to 36 times.
  • PTZ cameras are divided:
  • Speed. With manual control, the rotation speed of the device reaches 300 degrees/sec.
  • High speed. With automatic movement, the swing speed is 600 degrees/sec.
  • The tilt angle is up to 180 °.
  • The rotation angle in some models can be 360 °.
  • Positioning accuracy
  • For example, use a module with a 37-zoom lens for a camera with a positioning accuracy of 0.5-0.4 °, and bring the object as close as possible from a distance of 300 m. An error of 0.5 ° will give an error with a predetermined point of about 2 m!
  • The rotary mechanism is:
  • Gear transmission. A somewhat outdated mechanism, which today is no longer used anywhere. A camera with a gear system rotates at 240 degrees per second in the horizontal plane. This speed is sufficient for ordinary observation; this speed may already be insufficient for manual shooting in alarm mode. Positioning accuracy 0.5-0.4 °.
  • Belting. The rotation speed in the horizontal plane is up to 600 degrees/sec—positioning accuracy 0.1 °.
  • Direct drive from an electric motor. The swing speed can significantly exceed 600 deg/sec. Positioning accuracy 0.05 ° Direct drive substantially increases the cost of the device.

Advantages

  • Immeasurably greater visibility compared to fixed cameras.
  • The route of movement of the video camera can be programmed, but the operator can remotely take control of the camera into his own hands.
  • It can be used not only as a surveillance tool but also as a tracking tool.

Disadvantages

  • Despite all the advantages of a rotating mechanism, such cameras are still not devoid of “dead zones.”
  • The need for frequent maintenance of the swing mechanism.

Outdoor Cctv Camera With Night Vision

For round-the-clock control over the territory, the need for high-quality video recording at night is logical and in such a manifestation of nature, when there is neither the moon nor any extraneous light sources in the sky, i.e., in pitch darkness. Cameras with IR illumination come to the rescue. But the mere presence of IR illumination does not guarantee high-quality video recording at night. Some rules must be followed.

Features of outdoor night surveillance camera

  • The presence of IR illumination. When choosing a video camera with IR illumination, be sure to consider the following parameters:
  • Illumination angle. Ideally, the rise of illumination and the angle of view of the video camera should be the same, and then there will be no bright spot of lighting in the middle of the frame and dark spots at the edges.
  • Range of action. The power of the device determines this parameter of the night video camera. The greater the scope of the IR illumination, the more energy will be required to power the device.
  • Supply voltage. The device can be powered from a 220 V network, an adapter, or a built-in battery, depending on the power.
  • Power. IR floodlights can have different abilities, from several units to several tens of watts. The more powerful the IR illuminator, the brighter and farther it shines, consuming significantly more energy.
  • Light source. Incandescent lamps with special filters, gas discharge lamps, and IR diodes can be used. IR diodes are more economical and have a longer lifespan.
  • Wavelength. In cameras with IR illumination, diodes with a 790-950 nm (nanometer) are often used. A maximum sensitivity of human vision up to 800 nm, absolute invisibility of 930 nm. Based on this, you can pick up a camera invisible to the human eye at night, thereby hiding the device from intruders. Also, the wavelength affects the field of application:
  • 790-830 nm – are used in IR illuminators for video surveillance over long distances.
  • 850-900 nm is the most common wavelength range for infrared cameras. They have an acceptable detection range, and the radiation is practically invisible.
  • 930-950 NM – used for covert video recording at short and medium distances.
  • Radiation range.
  • Short-range. Up to 15 m, radiation angle 180 °. It is used mainly in premises, financial institutions, in places where it is necessary to conduct high-quality and inconspicuous video filming.
  • Medium range. Up to 60 mradiation angle 120-160 °. For not very large territories.
  • Long-range. Up to 300 m, radiation angle 20-60 °. Has a narrow beam of IR radiation. It is used for video filming of night roads, long corridors.
  • Day / night mode. The best solution for night photography is a camera that can automatically switch from color to black and white. The fact is that at night the black and white camera shoots better.
  • Sensitivity. They are measured in lux (Lx). It is believed that the lower the value, the worse the conditions the camera will give a high-quality image—highest light sensitivity 0.0003 Lx. For night photography on a full moon, 0.1 lux is enough; for a moonless night, 0.005 lux is needed.
  • The source of IR illumination can be built into the video camera and separated in the form of a spotlight.
  • ICR filter. It cuts off the infrared spectrum in the daytime, prevents blur and distortion of the picture.

Advantages

  • Some cameras can independently switch from color mode during the day to black and white mode at night.
  • With the correctly selected IR illumination, you can see everything perfectly, regardless of the presence of the moon or extraneous light sources.

Disadvantages

  • Limited resource of IR diodes (20-50 thousand hours).
  • Snow, rain, flying insects significantly interfere with video filming.
  • The heat generated from IR diodes can damage equipment if there is no cooling.

Wireless Outdoor Video Surveillance Camera With Wi-fi, Gsm (Sim-card), 3g / 4g

The principle of operation of a wireless video camera is to transfer the captured video over a Wi-Fi network to a computer, a cloud server. It is possible to control the video camera using a smartphone or tablet remotely.

Features of Wireless Outdoor Security Camera

  • For a wireless connection via a WI-FI network, you need to support a video camera of WI-FI standards on your equipment; as a rule, it is 802.11n / a / b / g. For high-speed data transmission, it is necessary to support a video camera and a router in the 802.11ac standard. Otherwise, the bandwidth of the radio channel for video transmission may not be enough.
  • Cameras equipped with a GSM module are not designed for full-fledged video signal transmission. The sim-card installed in such a video camera allows sending SMS and MMS to the specified phone number. Often, these cameras are equipped with motion sensors.
  • 3G / 4G cellular communication of the third and fourth generation. Depending on the standard, data transfer rates can be up to 1 Gbps. Installed GSM-module compatible with SIM-card of any operator.

Advantages of WI-FI cameras

  • Low cost of equipment.
  • Possibility of remote access to control and archive of video recordings.
  • Lack of cables, which reduces the cost of installation and maintenance of the video camera.
  • Simple setup and installation of equipment.

Disadvantages of WI-FI cameras

  • Video transmission may be interfering.
  • The presence of the Internet is required.
  • A limited number of cameras for one router.

GSM advantages

  • SMS and MMS with detailed information come to the specified number.
  • Due to the use of GSM, the coverage area is more comprehensive than with Wi-Fi.
  • The ability to receive information without the presence of the Internet via SMS.

Disadvantages of GSM

  • Inability to transfer streaming video.
  • Cellular coverage is required.

Benefits of 3G / 4G

  • Remote video surveillance capability;
  • Small size allows you to hide the device.
  • 3G / 4G is a stable data transfer method.

Disadvantages of 3G / 4G

  • Suppression of the signal with jammers is possible.

Outdoor Video Surveillance Camera With Recording

Today, finding a video surveillance system that merely feeds video on a monitor screen is nearly impossible. Modern CCTV cameras can transfer video files to the service cloud, save them to a memory card, hard drive.

Features of the outdoor surveillance camera with recording

  • Some models have a microphone for recording video with sound.
  • Video stream recording can be performed:
  • 1. On the video recorder (hard disk HDD) or cloud service (SaaS).
  • 2. On the DVR in normal mode but alarm mode (set in the device settings), recording is made to the memory card.
  • 3. Only on a memory card installed in the CCTV camera itself.
  • Recording can start after an event or action is programmed in the camcorder settings to save space on the memory card.
  • When using the H.264 codec in high quality with a resolution of 1920 x 1080 pixels and 25 frames per second, there will be 53 GB of video in 24 hours. The video volume will be half the size with a frame rate of 12.5 frames per second.
  • When using the H.265 codec (must be supported by the camera) with a 1920 x 1080 pixels resolution and a speed of 25 frames/sec, only 16 GB per day.
  • Modern outdoor camcorders support 128 GB, 256 GB, and more memory cards.
  • The device has cyclic recording, i.e., after it runs out of space, recording will begin on the second round, etc. This should be considered if you have plans to save a segment of the video for future use.

Advantages

  • The capacity to upload and download files to the cloud.
  • Ability to archive received video files.
  • Great for stand-alone work in the absence of the Internet, cable connection.

Disadvantages

  • If the memory card is damaged, all files from it will irrevocably disappear.
  • It is pretty troublesome to remove the memory card from the device whenever the need arises.

Outdoor Video Surveillance Camera With Motion Sensor

The sensor is triggered when an object appears in the observed area. The sensor can efficiently work on animals; you need to adjust the video camera sensor to avoid this.

Features of the outdoor video surveillance camera with motion sensor

Types of motion sensors

  • Infrared. It fires when an object emitting infrared rays enters the field of view of the camera.
  • Ultrasonic. Sends beams of ultrasonic waves, which is a calm environment, return unchanged. If any object falls into the camera’s angle of view, the intensity and frequency of the waves changes, and the sensor are triggered.
  • Photoelectric. It functions in the same way as an ultrasonic sensor, and only the device puts out light rays invisible to the naked eye.
  • Microwave. Emits electromagnetic waves, which are analyzed by the device after reflection.
  • Tomographic. Analyzes radio waves that can pass through non-metallic obstacles such as walls without interference.

With the help of the motion sensor, you can control the following functions:

  • Turning on the spotlights in the protected area.
  • In some models, it is possible to receive a notification on a smartphone when a sensor is triggered.
  • Turning on the warning siren, sending a signal to the security console.
  • Enable video recording.
  • The motion sensor detects objects in two ways:
  • Software. The sensor detector is constantly in operation, while all other camera functions are in sleep mode. When the sensor detects movement, the remainder of the camera’s functionalities are activated, and video recording begins. The detector itself consumes little power during operation.
  • Hardware. The hardware motion sensor is located separately from the video camera; due to this, activating the camera can be different (movement, heat, ultrasound, etc.)

Advantages

  • In standby mode, it uses relatively little electricity.
  • For hardware detection, the sensor can be purchased separately, depending on needs.
  • It saves space on a memory card or hard disk so that it shoots only after the sensor is triggered.
  • Depending on the object’s size, you can configure the motion sensor (people, animals, birds).

Disadvantages

  • Like a CCTV camera, the motion sensor also has blind spots that should be considered during installation.
  • The complexity of setting up the motion sensor (it is better if a specialist configures the sensor).

General Characteristics Of The Outdoor Cctv Camera

Despite the many differences, outdoor CCTV cameras have many characteristics in common.

Outdoor video camera protection

  • Thermal casing. Protects the camcorder from high and low temperatures due to the built-in heating or cooling system.
  • Hermetic casing. Protects the camera from dust, moisture, etc.
  • Vandal-proof casing. Made of rugged metal alloy, durable plastic, etc.

Viewing angle

The average viewing angle is 60 °, which is approximately the viewing angle of the human eye.

Shooting mode

  • Colored. Color mode provides high-quality images during daylight hours.
  • Black and white. At night, the best idea is from the black and white camera.

Type of shell

  • Dome. Has the appearance of a hemisphere attached to the ceiling or cornice. An open-frame modular camera is placed inside.
  • Cylindrical. Typically, cylindrical outdoor cameras are inexpensive and compact.
  • Modular. It does not have housing, for outdoor shooting requires a protective cover.

Camera mount type

  • To the ceiling.
  • To Wall.
  • With a bracket. It can be hung from the ceiling or on the wall. A figured shelf of a semicircular or triangular shape is used for round pillars or the corner of a building.

Camera power

  • From the network.
  • From the built-in battery, which is charged from the mains.
  • From the built-in battery, which is charged using the energy of the sun.

Video camera resolution

  • The camera resolution must match the number of pixels. You need to multiply the numerical value “maximum resolution” and compare it with the specified number of pixels to check this. The received data should be approximately the same or slightly less than the limited number of pixels. For example, it is indicated that the resolution is 2688 x 1520 = 4085760, the number of pixels of the matrix is ​​2MP or 2,000,000 pixels. This suggests that the solution is artificially “turned up,” and the picture quality may not be the best.

The physical size of the matrix

  • This is the diagonal size in inches ( 1 / 2.5; 1 / 2.8; 1/3; 1/4 ). The larger sensor has larger pixels, and this matrix captures more light. The fact that larger pixels are less closely spaced also has a positive effect; all these subtleties ultimately affect the image quality.

Focal length and viewing angle

The angle of view depends on the size of the sensor and the focal length of the camera.

Frame frequency

The picture quality improves as the frame rate increases, but the archive takes up more space. It’s also worth noting that with a low frame rate, you can bypass any vital part.

The optimal frame rate is 10-15 frames/sec. This frequency allows you to significantly save space on your hard disk or memory card without much quality loss. But for objects with increased security requirements, cameras with a higher frame rate are undoubtedly needed.

Shutter speed

If you have blurred in the frame, the problem may also lie in the shutter speed, sometimes lower than the frame rate. Hence the loss of structures and blur.

For example, the shutter is set to 1/4 sec, which means the exposure will be released four times in one second (1/4 + 1/4 + 1/4 + 1/4 = 1 sec). Accordingly, the device can take no more than four frames per second.

A Selection Of Manufacturers Of Outdoor Video Surveillance Cameras

We present an author’s selection based on popularity among buyers on Yandex Market, Wildberries, Ozon.

HiWatch

  • A Chinese manufacturer of analog and IP video surveillance systems and equipment for it. There is both a budget series and a PRO-series of goods and equipment.

PS-link

  • Russian manufacturer of video surveillance devices and cameras, as well as water and gas leakage control systems. Components for the “Smart Home” system.

SARCASM

  • Russian systems for video surveillance for home use, office, as well as a car. They produce analog, IP surveillance cameras for outdoor and indoor use.

Data

  • Chinese high-tech manufacturer of modern security systems. Video recorders, PTZ cameras (PTZ cameras), cameras with various sensors, thermal imagers, alarms, video intercoms, and much more.

Xiaomi

  • A well-known manufacturer from China, which has not lagged in the field of security systems. Manufactures modern CCTV cameras, both outdoor and indoor.
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