基于ONVIF的本安型手持式信息记录仪  

Intrinsically Safe Handheld Information Recorder Based on ONVIF

作　　者：李文峰[1] 高原 LI Wenfeng;GAO Yuan(College of Communication and Information Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]西安科技大学通信与信息工程学院,陕西西安710054

出　　处：《煤矿安全》2019年第1期92-95,共4页Safety in Coal Mines

基　　金：国家重点研发计划资助项目(2017YFC0703204);西安市碑林区科技计划资助项目(GX1812)

摘　　要：研发了一种基于ONVIF的本安型手持式信息记录仪。记录仪采用Cortex-A8处理器作为中央控制单元,采用红外LED作为辅助照明单元,采用CMOS图像传感器作为采集单元并采用本质安全电路技术的电源适配器方案,获得全黑环境下的音视频采集功能,并对采集的音视频数据进行压缩、存储和远传。记录仪克服了现有技术产品功耗大、红暴现象严重等不足,支持TCP/IP、UDP、ONVIF协议,实现与市面上通用客户端的无缝对接,可广泛应用于低照度环境采集及矿用执法采集等。经测试,记录仪黑暗环境可视距离20 m,功耗小于8 W,可持续工作时长6h,可以实时在PC端,移动端和手持式记录仪上播放现场采集的视频信息。This paper develops an intrinsically safe handheld information recorder based on ONVIF. The device adopts Cortex-A8 processor as the central control unit, adopts infrared LED as auxiliary illumination unit, adopts CMOS image sensor as acquisition unit and adopts power supply adaptation scheme of intrinsically safe circuit technology to obtain audio and video collection function in all black environment. The captured audio and video data are compressed, stored, and transmitted remotely. It overcomes the shortcomings of the prior art products such as large power consumption and serious red storm phenomenon. It supports TCP/IP, UDP, and ONVIF protocols, and realizes seamless connection with common clients on the market. The device can be widely used in low illumination environment collection and mining law enforcement collection. After testing, the dark environment can be seen at a distance of 20 meters, the power consumption is less than 8 W, and the sustainable working time is6 h. The live video information can be played on the PC side, the mobile terminal and the handheld recorder in real time.

关 键 词：信息记录仪 低照度 本安型 CORTEX-A8 ONVIF 执法取证 

分 类 号：TD679[矿业工程—矿山机电]