The central link of the video surveillance system is the video recorder, which combines video cameras of various formats, microphones, sensors, hard drives, control panels, network equipment, and other devices into a single configuration.
When choosing a suitable model, it is important to know what characteristics and functionality will be required to complete current tasks, as well as achieve the set goals for the future. The review reveals questions about what products are, their description in order to choose, in the opinion of buyers, the best devices.
Content
Video recorder is a device for receiving, processing and archiving signals from video cameras for playing video images on monitors or broadcasting over local networks or the Internet.
As a rule, the product is ready for use after installing a hard disk with sufficient memory and setting up video capture (motion detectors, blind spots). In addition, technical capabilities allow you to connect not only cameras, but also additional equipment to the device.
Used in video surveillance systems for:
The configuration of the product is similar to the device of the computer system unit and includes:
In this case, it is possible to connect additional components:
The unified architecture is controlled by specialized software that allows you to resist extraneous influences in the form of virus or network attacks.
1. Analog (Digital Video Recorder, DVR).
In this case, the product is connected via coaxial cables to analog surveillance devices. Image encoding and processing is performed directly in the DVR. Typically installed in small to medium sized facilities.
Advantages:
Disadvantages:
2. Network (Network Video Recorder, NVR).
Unlike analog ones in network models, the encoding and processing of the image is performed by an IP-video camera, followed by transmission via a network cable to a DVR for remote viewing or storage.
Advantages:
Disadvantages:
3. Hybrid (Hybrid Digital Video Recorder, HDVR).
Versatile products that combine the capabilities of analog and network devices.
It should be borne in mind that the characteristics are directly influenced by the tasks and structure of the video surveillance system, as well as the prospects for its expansion or modernization. Therefore, in order not to make mistakes when choosing, it is necessary to compare the values, what to look for before ordering a suitable model online in the online store.
1. Compatibility of the DVR and cameras with the support of the same video standards:
2. Permission.
Recording is carried out with the maximum resolution available to the recorder, and not transmitted by the video camera. If it is necessary to distinguish small details of the image (denominations of bills, machine numbers), equipment with very high parameters is required.
3. Video recording speed.
The best option is online video for each channel, which is achieved at 25 frames per second. However, the value of the value is influenced by the speed of development of the observed events:
Overall speed can be redistributed between cameras.
4. The number and type of hard drives.
As a rule, they are purchased separately, since the installation is often not provided in the registrar. Should be with a large amount of memory for recording / rewriting. As a rule, hard drives up to 6 TB are used, and it is not always possible to connect more than one drive. In addition, it is necessary to take into account the compatibility of equipment of different brands.
The best manufacturers always report the recommended hard drives for their products.
5. Interfaces for additional equipment.
Each analog camera requires a separate input. It is better to choose with a margin for the subsequent expansion of the surveillance network.
6. Additional characteristics.
Video tutorial "How to choose a DVR":
It is better to buy inexpensive budget video recorders in the departments of specialized equipment for video surveillance systems. Managers who have undergone special training will give valuable recommendations and advice - the products of which company is better to buy, how much it costs, which popular models are the most bought. In this case, the product can be viewed or touched, read the description, compare the characteristics, and also clarify the features.
In addition, it is easy to choose new items from the best manufacturers on the pages of Yandex.Market or E-catalog aggregators, where offers with photos and direct links for purchase are accumulated.
Currently in Moscow you can buy:
The rating of quality devices is compiled in accordance with the popularity of models in specialized stores in the opinion of buyers who left feedback on the results of operation. The list includes the main types of DVRs - analog, network and hybrid.
Brand - Trassir (Russia).
Country of origin - China.
A compact Chinese-made model for expanding existing and creating new surveillance systems during construction using analog CCTV devices. Allows connection of up to four video cameras with a resolution of 960x576 and a frequency of 25 fps. The video is compressed using the H.264 codec. DualStream is supported. Equipped with four audio channels and two-way audio capabilities. It is possible to connect one hard drive.
Video review:
Brand - Proto-X (Republic of Korea).
Country of origin - China.
The newest product of joint development of Russian and South Korean engineers for complex video surveillance systems at small facilities using analog equipment. A high-quality model with a clear and convenient interface and advanced functionality. The software is compatible with Mac and Windows operating systems and allows for efficient remote control of the device.
Brand - HiWatch (China).
Country of origin - China.
A successful model of a 16-channel Chinese-made recorder for video surveillance systems at small facilities using analog video cameras. The VGA connection allows you to display the image in multi-window mode on a monitor with a choice of up to 16 windows. The hard drive slot provides ample space for archiving and storing information. DualStream support with two-way audio for communicating with people in the vicinity of cameras.
TRASSIR Lanser 960H-4 3.5 | Proto-X PTX-UDR1604HD | HiWatch DS-H116G | |||
---|---|---|---|---|---|
Number of channels | 4 | 16 | 16 | ||
Drives: | |||||
amount | 1 | 2 | 1 | ||
Maximum capacity, TB | 3.5 | 8 (2x4) | 6 | ||
Video: | |||||
Resolution (all channels), pix | 960x576 | 1080x720 | 1280x720 | ||
Maximum resolution, pix | 960x576 | 1080x720 | 1280x720 | ||
Frame rate, fps | 25 | 25 | 25 | ||
Compression format | H.264 | H.264 | H.264 | ||
Connectors: | |||||
BNC video input | 4 | 16 | 16 | ||
BNC video output | 1 | 1 | 0 | ||
RCA audio input | 4 | 4 | 1 | ||
RCA audio output | 1 | 1 | |||
USB | 2 | 3 | 2 | ||
HDMI | 1 | 1 | 1 | ||
VGA | 1 | 1 | 1 | ||
LAN (RJ-45) | 1 | 1 | |||
Alarm input | 4 | 0 | 0 | ||
Alarm output | 1 | 0 | 0 | ||
Additional connectors | RS-485 | RS-485 | 0 | ||
Motion Detector | not | Yes | not | ||
PTZ control | not | Yes | not | ||
General: | |||||
Power supply, V | 220 | 12 | 12 | ||
Dimensions (LxWxH), mm | 250x170x92 | 320x340x70 | 285x210x45 | ||
Weight, g | 3500 | 5000 | 1200 | ||
Guarantee period | 60 months | 60 months | 24 months | ||
price, rub. | 17079 | 34000 - 40800 | 7184 - 14370 |
Brand - Zodikam (Russia).
Country of origin - China.
A universal model made in China for creating an inexpensive effective security system. The device has excellent performance with a convenient solution for storing and viewing video images remotely. Managed by software or browser. Possibility to control a rotary device.
Brand - Ezviz (China).
Country of origin - China.
A universal model made in China with support for the closed Hikvision and Ezviz protocols to solve the problems of connecting video cameras that work through them. With the open ONIF standard, it is possible to connect to any IP cameras that operate via Wi-Fi for a maximum distance of up to 100 meters and are automatically detected in the network. Suitable for any FullHD monitors. The company uses its cloud service Ezviz, which allows customization and video viewing on mobile devices or laptop at any time.
Video review of the DVR startup procedure:
Brand - HiWatch (China).
Country of origin - China.
A Chinese-made network model for expanding existing video surveillance systems or creating new small systems with a limited budget. Provides connection of up to 16 8 Mp IP cameras with a total bit rate of up to 160 Mbps. Best picture quality through HDMI port.
Video review of launching and configuring the device:
Brand - Dahua (China).
Country of origin - China.
China-made eight-channel network model for video surveillance systems of small objects at a reasonable price. Provides connection of IP cameras up to 6 Mpix. Using a 1.6 GHz processor compresses video to H.264 + format with the ability to save up to half the memory capacity of the hard drive.
Using ANR technology, if there is no network connection with IP cameras, recording is performed on SD cards installed on them. After the connection is restored, the information is overwritten.
Video review:
Brand - Hikvision (China).
Country of origin - China.
Networked eight-channel model of the Chinese assembly for quickly creating a video surveillance system, compatible with the equipment of its brand and the ability to connect video cameras from other manufacturers. Quick finding of image fragments is carried out using smart search. The backup is performed on external media connected via USB ports. Power supply to cameras (PoE) is carried out at a distance of up to 300 meters using a high-quality UTP cable.
Video review:
Zodikam NVR4208-E | EZVIZ Vault Live 4CH | HiWatch DS-N316 / 2 | Dahua DH-NVR2208-S2 | Hikvision DS-7608NI-K2 / 8P | |
---|---|---|---|---|---|
Number of channels | 8 | 4 | 16 | 8 | 8 |
Drives: | |||||
amount | 1 | 1 | 2 | 2 | 2 |
Maximum capacity, TB | 6 | 6 | 12 | 12 | 12 |
Video: | |||||
Resolution (all channels), pix | 1080x720 | 1920x1080 | 640x480 | 1920x1080 | 1920x1080 |
Maximum resolution, pix | 1920x1080 | 1920x1080 | 3072x2048 | 3072x2048 | 4096x2160 |
Compression format | H.264 / MJPEG | H.264 | H.264; H.264 + | H.264 | H.265; H.264; MPEG4 |
Connectors: | |||||
RCA audio input | 0 | 1 | 1 | 1 | 1 |
RCA audio output | 0 | 1 | 1 | 1 | 1 |
USB | 2 | 1 | 2 | 2 | 2 |
HDMI | 1 | 1 | 1 | 1 | 1 |
VGA | 1 | 1 | 1 | 1 | 1 |
LAN (RJ-45) | 1 | 1 | 1 | 1 | 9 |
Motion Detector | Yes | not | Yes | Yes | Yes |
PTZ control | Yes | not | not | Yes | not |
General: | |||||
Power supply, V | 12 | 220 | 12 | 12 | 220 |
Dimensions (LxWxH), mm | 233x300x45 | 270x235x45 | 380x290x48 | 375x275x53 | 385х315х52 |
Weight, g | 750 | 1300 | 1000 | 1500 | 3000 |
Guarantee period | 12 months | 12 months | 24 months | 12 months | 36 months |
price, rub. | 4290 | 3654 - 6990 | 8150 - 30620 | 7176 - 9112 | 13132 - 22390 |
Brand - Eseeco (China).
Country of origin - China.
A Chinese-made hybrid model that supports analog and network cameras up to 2.0 megapixels, for creating new video surveillance systems or expanding existing ones, including when renovating an object. Supports four channels with simultaneous recording, display, playback, backup and remote network operation. Ability to view through mobile devices.
Brand - Rexant (China).
Country of origin - China.
Versatile hybrid four-channel model for online monitoring, recording, playback and backup of video images. High definition HDMI and VGA video outputs. Remote control from mobile platforms and using vMEyeSuper and vMEyeCloud software. Recording is carried out in four modes: continuous, motion, schedule or event.
Brand - Falcon Eye (Canada)
Country of origin - China.
A compact four-channel model made in China for self-creation of a video surveillance system. Equipped with PTZ technology support for remote control. Video signals in PAL and NTSC format. One hard drive is connected with a maximum volume of up to 6 TB. Recording is performed by motion, schedule, alarm or manual.
Functional video review:
Brand - Zodikam (Russia).
Country of origin - China.
A universal eight-channel model made in China for creating an effective security system without extra financial costs. A quiet device with excellent characteristics and functionality, fully justifies its low cost.
Brand - Dahua (China).
Country of origin - China.
A compact multi-format eight-channel model of Chinese production for the modernization of existing and building new video surveillance systems. Supports five video signal formats AHD, CVBS, IP, HDCVI and TVI. Provides high quality video and excellent color reproduction. Integrated Intelligent Video Analytics (IVS) detects and analyzes moving objects. Provides support for detection of intrusion into the zone, identification of forgotten and lost items, face recognition, registration of visitors. Works with various types of video cameras. Standard mouse control via USB port. The rights of local users are flexibly delimited.
Video review:
Eseeco VD-X6004HN-C | REXANT 45-0171 | Falcon Eye FE-2104MHD | Zodikam H4208 | Dahua DHI-XVR5108HE-S2 | |
---|---|---|---|---|---|
Number of channels | 4 | 4 | 4 | 8 | 8 |
Drives: | |||||
amount | 1 | 1 | 1 | 1 | 1 |
Maximum capacity, TB | 6 | 4 | 6 | 4 | 8 |
Video: | |||||
Resolution (all channels), pix | 704x240 | 720x480 | 1920x1080 | 1280x720 | 1280x720 |
Maximum resolution, pix | 1920x1080 | 720x480 | 1920x1080 | 1920x1080 | 1920x1080 |
Frame rate, fps | 25 | 25 | 25 | 25 | 25 |
Compression format | H.264 | H.264 | H.264 | H.264 | H.264; H.264 + |
Connectors: | |||||
BNC video input | 4 | 4 | 4 | 8 | 8 |
RCA audio input | 1 | 4 | 4 | 4 | 8 |
RCA audio output | 1 | 1 | 1 | 1 | 1 |
USB | 2 | 1 | 2 | 2 | 2 |
HDMI | 1 | 1 | 1 | 1 | 1 |
VGA | 1 | 1 | 1 | 1 | 1 |
LAN (RJ-45) | 1 | 1 | 1 | 1 | 1 |
Motion Detector | Yes | Yes | Yes | Yes | Yes |
General: | |||||
Power supply, V | 12 | 12 | 12 | 12 | 12 |
Dimensions (LxWxH), mm | 330x290x80 | 210x200x45 | 250x230x45 | 354x245x45 | 325x255x55 |
Weight, g | 1200 | 955 | 1200 | 1500 | 1500 |
Guarantee period | 12 months | 12 months | 36 months | 12 months | 12 months |
price, rub. | 2890 | 4115 | 5302 - 19990 | 5995 - 6990 | 9390 - 14990 |
When choosing a DVR, you should also pay attention to the operating conditions, and not just the characteristics. Do not chase too high a resolution, then you will need more expensive equipment and larger volumes of hard drives.It is better to turn to professionals for advice, and they will help you choose a model that meets the size and specifics of the security system.
Happy shopping and good luck!