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A network video recorder (NVR) is a specialized computer system that records video [1] to a disk drive, USB flash drive, memory card, or other mass storage device. An NVR itself contains no cameras, but connects to them through a network, typically as part of an IP video surveillance system. NVRs typically have embedded operating systems.
In some DVR security systems remote access to security footage using a PC can also be achieved by connecting the DVR to a LAN network or the Internet. Some of the latest professional digital video recorders include video analytics firmware, to enable functionality such as 'virtual tripwire' or even the detection of abandoned objects on the scene.
Analog wireless is the transmission of audio and video signals using radio frequencies. Typically, analog wireless has a transmission range of around 300 feet (91 meters) in open space; walls, doors, and furniture will reduce this range.
Xumo: The remote. The Xumo remote is a much more simplified version of the Spectrum cable box remote you might be accustomed to. For instance, you won’t see buttons for “record” or “last ...
Hangzhou Hikvision Digital Technology Co., Ltd., often shortened to Hikvision, is a Chinese partly state-owned manufacturer and supplier of video surveillance equipment for civilian and military purposes, headquartered in Hangzhou, Zhejiang.
IP can optionally be transmitted across the public internet, allowing users to view their cameras remotely on a computer or phone via an internet connection. [158] IP cameras are considered part of the Internet of things ( IoT ) and have many of the same benefits and security risks as other IP-enabled devices. [ 159 ]
ONVIF (the Open Network Video Interface Forum) is a global and open industry forum with the goal of facilitating the development and use of a global open standard for the interface of physical IP-based security products.
The port to connect the GPS antenna can use a micro USB or 3.5 mm jack connection. The antenna is usually 1575 to 1568 MHz and 3.0 to 5.0 V . GPS coordinate stamping capability is included in most dashcams (some need an external GPS antenna, but other dashcam systems have built-in GPS), and others include GPS (online and offline) navigation.