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Wireless security cameras are closed-circuit television (CCTV) cameras that transmit a video and audio signal to a wireless receiver through a radio band. Many wireless security cameras require at least one cable or wire for power; "wireless" refers to the transmission of video/audio.
Network Audio – In 2015, Axis Communications introduced its first network audio product, a horn speaker providing talk-down audio functionality for security applications. [ 54 ] [ 55 ] Subsequently, the company has launched network loudspeakers , sound projectors, strobe sirens, intercoms, and analog-to-IP audio converters for use in public ...
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 .
In 2021, Best Buy, Home Depot, and Lowe's stopped selling cameras from Hikvision brand Ezviz due to concerns about Hikvision's complicity in surveillance and human rights violations in Xinjiang. [15] In 2022, Hikvision was awarded a Chinese government contract to develop software to track "key people" in order to prevent them from entering Beijing.
[13]: 80 In November 2020, Dahua won a US$9 million, 1,900-camera smart city project with the public security bureau of Jiexiu. [14] In April 2021, Motorola Solutions announced that IndigoVision , a Motorola Solutions-owned company, would no longer relabel Dahua cameras, citing U.S. NDAA and supply-chain concerns.
ONVIF creates a standard for how IP products within video surveillance and other physical security areas can communicate with each other. ONVIF is an organization started in 2008 by Axis Communications, Bosch Security Systems and Sony. [1] It was officially incorporated as a non-profit, 501(c)6 Delaware corporation on November 25, 2008. ONVIF ...
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