摘要
利用频分复用技术、电源插入与分离技术和电路微型化技术研究并制作单接口射频信号输出监控摄像机的关键芯片,使摄像机中电源信号与视频信号共用一个接口、且监控输出信号为调制载波频率可调的射频信号;极大提高了监控系统的隐蔽性,节省大量电源线,抗干扰能力更强、封闭性更好、安装更简单。
Researching and manufacturing the key chip of surveillance camera exporting radio-frequency signal with uni-interface was explored by the technology of Frequency Division Multiplexing(FDM),power contact,separation technique and circuit miniature;which can make power signals and video signals of camera use the same interface at together,and exports the monitoring signal which must be radio-frequency signal and the frequency of the carrier modulation can be adjusted.The technology promotes the imperceptibility of monitoring systems greatly,and saves lots of power cord.It has strong anti-jamming ability,perfect sealing ability and is simple to install.
出处
《贵州大学学报(自然科学版)》
2011年第4期51-55,共5页
Journal of Guizhou University:Natural Sciences
基金
福建省教育厅课题(JA08261)
关键词
单接口
射频信号
摄像机
关键芯片
研发
uni-interface
radio-frequency signal
camera
key chip
research and development