Physical security describes security measures that are designed to deny unauthorized access to facilities, equipment, and resources and to protect personnel and property from damage or harm. Physical security involves the use of multiple layers of interdependent systems that can include CCTV surveillance, security guards, protective barriers, locks, access control, perimeter intrusion detection, deterrent systems, fire protection, and other systems designed to protect persons and property.
Closed-circuit television (CCTV), also known as video surveillance, is the use of closed-circuit television cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television because signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring.
Professional video over IP systems use some existing standard video codec to reduce the program material to a bitstream, and then to use an Internet Protocol (IP) network to carry that bitstream encapsulated in a stream of IP packets. This is typically accomplished using some variant of the RTP protocol.
Motorola Solutions, Inc. is an American video equipment, telecommunications equipment, software, systems and services provider that succeeded Motorola, Inc., following the spinoff of the mobile phone division into Motorola Mobility in 2011. The company is headquartered in Chicago, Illinois.
ZoneMinder is a free, open-source software application for monitoring via closed-circuit television - developed to run under Linux and FreeBSD and released under the terms of the GNU General Public License (GPL).
Hanwha Vision, founded as Samsung Techwin, is a video surveillance company. It is a subsidiary of Hanwha Group. The company employs 1,822 people and is headquartered in South Korea. Its total sales in 2020 were 529.8 billion South Korean won.
Axis Communications AB is a Swedish manufacturer of network cameras, access control, and network audio devices for the physical security and video surveillance industries. Since 2015, it operates as an independent subsidiary of Canon Inc.
A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves. The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of people or devices with authorized access. Cameras can be either analog or digital. Walter Bruch was the inventor of the CCTV camera.
The Texas Instruments DaVinci is a family of system on a chip processors that are primarily used in embedded video and vision applications. Many processors in the family combine a DSP core based on the TMS320 C6000 VLIW DSP family and an ARM CPU core into a single system on chip. By using both a general-purpose processor and a DSP, the control and media portions can both be executed by separate processors.
An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via an IP network. They are commonly used for surveillance, but, unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, only a local area network. Most IP cameras are webcams, but the term IP camera or netcam usually applies only to those that can be directly accessed over a network connection.
Physical security information management (PSIM) is a category of software that provides a platform and applications created by middleware developers, designed to integrate multiple unconnected security applications and devices and control them through one comprehensive user interface. It collects and correlates events from existing disparate security devices and information systems to empower personnel to identify and proactively resolve situations. PSIM integration enables numerous organizational benefits, including increased control, improved situation awareness and management reporting. Ultimately, these solutions allow organizations to reduce costs through improved efficiency and to improve security through increased intelligence.
Video content analysis or video content analytics (VCA), also known as video analysis or video analytics (VA), is the capability of automatically analyzing video to detect and determine temporal and spatial events.
A network video recorder (NVR) is a specialized computer system that records video 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.
IndigoVision is an IP video surveillance systems company based in Edinburgh, Scotland, founded in 1994.
The Domain Awareness System, the largest digital surveillance system in the world, is part of the Lower Manhattan Security Initiative in partnership between the New York Police Department and Microsoft to monitor New York City. It allows the NYPD to track surveillance targets and gain detailed information about them, and is overseen by the NYPD Counterterrorism Bureau.
Pelco Incorporated is an American security and surveillance technologies company. Founded in 1957 and headquartered in Fresno, California, Pelco is a wholly owned subsidiary of Motorola Solutions. The company's products include security cameras, recording and management systems, and video analytics software.
The Physical Security Interoperability Alliance (PSIA) is a global consortium of more than 65 physical security manufacturers and systems integrators focused on promoting interoperability of IP-enabled security devices and systems across the physical security ecosystem as well as enterprise and building automation systems.
Zhejiang Dahua Technology Co., Ltd. is a publicly traded company based in Binjiang District, Hangzhou, which manufactures video surveillance equipment. A minority of Dahua is state-owned.
Senstar Corporation develops and manufactures perimeter intrusion detection systems, video management software, security lighting, personal duress systems, and access control software for the physical security and video surveillance industries. Its headquarters are located in Ottawa, Ontario. Senstar products protect facilities around the world, including critical infrastructure sites, military bases, nuclear power plants, airports, personal estates, borders, and correctional facilities.
Verkada Inc. is a San Mateo, CA-based company that develops cloud-based building security and operating systems. The company combines security equipment such as video cameras, access control systems and environmental sensors, with cloud based machine vision and artificial intelligence.
