A mine intrinsically safe audio and video recorder

Abstract

A mine intrinsically safe audio and video recorder is designed. The device is based on 5G SOC processor, and adopts the photosensitive sensor + white light/infrared laser fill light + intrinsically safe circuit scheme. Under the environment of low illumination, full black or confined space, it can collect, compress, store and display 4K high-definition video images, and transmit the collected audio and video data in real time. The recorder has the characteristics of high imaging quality, long shooting distance and low power consumption in low illumination environment; it supports TCP/IP, UDP, RTP, ONVIF, GB28181 and other protocols. In addition to serving as an underground information record, it can also assist the emergency headquarters in carrying out rescue operations in time. The test results show that the picture resolution of the recorder is 10 688×6 012, the video resolution is 2 560×1 440, the visual distance is 20 m, the data packet loss rate is about 0.068%, the delay is about 15.85 ms, and it can achieve continuous video recording for 9 hours or continuous video playback for 4 hours.

Keywords

• mine audio and video recorder
• low illumination video capture
• photosensitive sensor
• white light/infrared laser fill light
• gb28181 interface