摘要
针对人们特别是儿童近距离观看电视时的视力保护,设计了一种利用热释电红外传感器检测距离变化,用于检测有无人体信号靠近,进行电视近距离保护、语音提示报警功能的系统,具有较强的可靠性、实用性。
the detecting and protecting system is designed to realize television close protection and voice alarm,for human being,especially children to protect eyesight watching television at the close distance,.This system is designed based on the pyroeletric infrared sensor which can detects the near body signals and this system is very reliable and practical.
出处
《装备制造技术》
2008年第1期50-52,共3页
Equipment Manufacturing Technology
关键词
红外线传感器
距离
检测
保护视力
infrared sensor
close distance
detect
protect eyesight
