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A leading provider, HALO Smart Sensors, sells 90% to 95% of its sensors to schools. The sensors don’t have cameras or record audio but can detect increases in noise in a school bathroom and send ...
[98] [99] In Washington, D.C., there are more than 30,000 surveillance cameras in schools, [100] and the Metro has nearly 6,000 cameras in use across the system. [101] There were an estimated 30 million surveillance cameras in the United States in 2011. [102]
The best outdoor security cameras should record video in Full HD (1080p) resolution, which captures enough detail to identify facial features or a car’s license plate. More expensive cameras can ...
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Electronic lock on a school arts room in Hong Kong. School security encompasses all measures taken to combat threats to people and property in education environments. [1] One term connected to school security is school safety, which is defined as the sheltering of students from violence and bullying, as well as exposure to harmful elements such as drugs, guns and gang activity. [2]
These cameras do not require a video capture card because they work using a digital signal which can be saved directly to a computer. The signal is compressed 5:1, but DVD quality can be achieved with more compression (MPEG-2 is standard for DVD-video, and has a higher compression ratio than 5:1, with a slightly lower video quality than 5:1 at best, and is adjustable for the amount of space to ...
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