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四川省达州市中石化中原油田普光分公司生产服务中心,四川 达州,635000
Received:11 November 2015,
Revised:21 December 2015,
Published:05 February 2016
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童建斌,. 本质安全型防爆摄像仪的研发和应用[J]. 液晶与显示, 2016,31(2): 215-221
TONG Jian-bin,. Research and application of intrinsically-safe explosion-proof environment camera[J]. , 2016,31(2): 215-221
童建斌,. 本质安全型防爆摄像仪的研发和应用[J]. 液晶与显示, 2016,31(2): 215-221 DOI: 10.3788/YJYXS20163102.0215.
TONG Jian-bin,. Research and application of intrinsically-safe explosion-proof environment camera[J]. , 2016,31(2): 215-221 DOI: 10.3788/YJYXS20163102.0215.
高清4G公网防爆摄像仪系统是为石油化工等高危防爆环境研制的便携移动防爆摄像系统。如何在高清4G模块高发射功率、多储能元件的前提下实现设备的总体防爆指标以满足国家标准是本文解决的重点问题。基于防爆理论
通过提高设备防爆电容设计门限和降低电路容值设计的电容管理手段
对整体设备的储能元件进行了极限防爆限制
优化设计了4G-LTE无线摄像模块的最低储能电容解决方案;利用双半波振子天线列阵技术实现天线设备的发射功率限制硬件保护
采用软件保护手段实现双重防爆保护
从设计原理上保证了研发的高清4G摄像仪满足《GB 3836.1-2000》防爆要求。在保证防爆性能和设备功能的前提下
设备电容容量降低了50%
设备远场电场强度9%。
4G-LTE high definition explosion-proof camera system is designed for petroleum
chemical and other high-risk environment. The most difficult point of device design is balancing the equipment features and explosion-proof performance. Based on explosion-proof theory
the design difficulties are equipment circuit capacitance and 4G-LTE transmit power. By increasing the capacitance limitation and reducing circuit
we can solve the high energy storage of explosion-proof circuit. 4G-LTE high definition explosion-proof camera system uses two half-wave dipole antenna array to maximize the transmit performance of device. Software protection achieves double explosion protection. After redesign
the two half-wave dipole antenna array can also enhance 9% effective isotropic radiated power than common antenna and the device can reduce 50% capacitance.
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SUN H J, CHANG L, WANG Q W, et al. A novel double half-wavelength dipole antenna and its application[J]. Transactions of Beijing Institute of Technology, 2008, 28(5): 426-428, 436.
谢雪望.射频识别阅读系统的技术研究[D].厦门:厦门大学,2008. XIE X W. Research on technology of radio frequency identification reader system[D]. Xiamen: Xiamen University, 2008. (in Chinese)
SMITH C. Explosion proof communications relay and communications system: US, US8086280 B2[P]. 2011-12-27.
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