一种矿用本安型音视频记录仪
A mine intrinsically safe audio and video recorder
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摘要: 设计了一种矿用本安型音视频记录仪。设备基于5G SOC处理器，采用感光传感器+白光/红外激光补光+本质安全电路方案，在低照度、全黑或密闭空间的环境下，能采集、压缩、存储、显示4K高清视频图像，同时将采集的音视频数据进行实时远传；记录仪具有低照度环境下成像质量高、拍摄距离远、功耗小等特点，支持TCP/IP、UDP、RTP、ONVIF、GB28181等协议，除了作为井下信息记录外，还可以辅助应急指挥部及时展开救援行动。测试结果表明：记录仪黑暗环境下图片分辨率为10 688×6 012，视频分辨率为2 560×1 440，可视距离达20 m，数据丢包率约为0.068%，时延约为15.85 ms，可实现持续视频摄录9 h或持续视频回传4 h。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.
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