The surveillance cameras in university canteens generally include high-definition infrared guns, high-definition infrared hemispheres
The surveillance cameras in university canteens generally include high-definition infrared guns, high-definition infrared hemispheres and high-definition indoor ball machines. Camera, also known as computer camera, computer eye and electronic eye, is a kind of video input equipment, which is widely used in video conferencing, telemedicine, real-time monitoring and other fields. Ordinary people can also have video and sound conversations and exchanges through the cameras on the network. In addition, people can also use it for various popular digital images, audio-visual processing and so on. Cameras can be divided into digital cameras and analog cameras.