Hilook Digital video recorder (DVR) is an electronic device that records video in digital format on the disk drive, USB flash drive, SD memory card, SSD, or other local or network storage device. Human computers are often connected to video recording devices and used as DVRs; in such cases, the software used to record video is an integral part of the DVR. Many DVRs are classified as consumer electronics devices; such devices can also be called personal video recorders (PVRs).
Hilook Digital video recorder set up by physical security applications record video signals from lockable television cameras for detection and recording purposes. Many are designed to record audio as well. DVRs have evolved into rich devices and provide services beyond the simple recording of pre-made VCR video images. The DVR CCTV system provides a wide range of advanced functions in VCR technology including video search by event, time, date and camera.
There is also more control over quality and frame quality that allows the use of disk space to be configured and the DVR can also be set to record old security videos when the disk is full. In some DVR security systems remote access to PC videos, using a PC can also be achieved by connecting the DVR to a LAN network or the Internet. Some of the latest high-performance records include video analytics firmware, enabling functionality such as ‘virtual tripwire’ or discovery of discarded items on the scene.
Security DVRs can be categorized as PC-based or embedded. PC-based DVR architecture is a personal computer with video capture cards designed for video capture. The embedded version of the DVR is specially designed as a Hilook Digital video recorder with its software and application software contained in firmware or read-only memory.
Hardware Features Edit
Hardware features of DVR security vary between manufacturers and may include but are not limited to:
- Designed for rack configuration or desktop configuration.
- One or more video inputs with analogue compatible connector or digital video provided as coaxial cable, twisted pair, or fiber optical cable. Most entries are 1, 2, 4, 8, 16, and 32. Programs can be configured with a large amount of input by connecting or baking individual DVRs together.
- Video output of each input that repeats the input video signal corresponding to the type of connector. These output signals are used by other video equipment such as matrix converters, multiplexers, and video monitors.
- Controlled effects for external video display monitors.
- Replacement of front panels and indicators that allow various machine features to be controlled.
- A network connection that is compatible with the network type and used to control the recording features and send and/or receive video signals.
- Connect to external control devices such as keyboards.
- Connect to external pan-tilt-zoom drive mounting cameras.
- Internal CDs, DVDs, VCR devices are usually stored in the video archive.
- Connect to external storage media.
- Alarm event input from external security devices, usually one input per video.
- Alarm event results from internal recovery features such as motion detection or video loss.
Software Features Edit
Software features vary between manufacturers and may include but are not limited to:
- User-selected photography prices for either input or input. Capture level feature can be set to automatically adjust. The scan rate in the event of an external alarm or an internal event
- Image fix options for all input or input settings. The photo editing feature can be set to automatically adjust the photo editing in the event of an external alarm or internal event.
- Compression methods determine the quality of play. H.264 hardware compression provides fast streaming rates on the Internet with high quality video.
- Motion detection: Depending on the input on the basis of input, this feature detects movement in the full image or in the specified user part of the image and usually provides sensitivity settings. Acquisition results in an internal event that may be downloaded to an external machine and/or used to initiate changes to other internal features.
- Lack of mobility. Given the input on an input basis, this feature detects the movement of an object in the viewing field. Remains fixed for the user’s defined time. Acquisition results in an internal event that may be downloaded to an external machine and/or used to initiate changes to other internal features.
- Movement acquisition direction. Given the input based on input, this feature finds the direction of the movement in the image determined by the user as unacceptable. Acquisition results in an internal event that may be downloaded to an external machine and/or used to initiate changes to other internal features.
- Submission of video input to video monitors according to user input or automatically at alarms or events.
- Stamping, time, and date.
- Alarm and event login for appropriate video input.
- Alarm and event search.
- One or more audio recording channel.