自动门
自动门的开门信号有哪几种?如何选择
发布时间:2011/10/23

 

  自动门的开门信号是触点信号,微波雷达和红外传感器是常用的两种信号源。
 

  微波雷达是对物体的位移反应,因而反应速度快,适用于行走速度较快的人员通过的场所,它的缺点点是一旦在门附近的人员不想出门而基本静止不动后,雷达就不会反应,自动门就会关闭,有时候会出现夹人现象。虽然现在的自动门都有防夹自动反弹功能,不会夹伤人,但难免让人不悦
 

  红外传感器对物体存在进行反应,有静检知功能,不管人员移动与否,只要处于传感器的扫描范围内,它都会反应即传出触点信号。缺点是红外传感器的反应速度较慢,但是安全性提高,特别适用于有行动迟缓的人员出入的场所。
 

  其它开关:由于微波雷达和红外传感器并不了解接近自动门的人是否真要进门,所以有些场合更愿意使用按键开关。按键开关可以是一个触点式的按钮。在手术室也用到肘触开关,它可以用胳膊肘来操作。避免了手的接触。还有所谓脚踏开关,功能一样,但对防水的要求较高。现在的楼字自控有时会提出特殊的要求,例如使用电话的某一分线控制开门。要达到这个要求,只要保证信号是无源的触点信号即可。极少情况下,人们会提出天线遥控的要求。用一个无线接受器与自动门进行触点式连接,再配一个无线发射器,就可以达到要求。不过,现在的无线电波源干扰太多,容易导致偶然开门是一个麻烦的问题。

 

 

  蜀盾门控--中国自动门专家
  蜀盾门控--西部自动门技术顶尖企业
  蜀盾门控--用世界的技术,做中国的门

  成都市蜀盾自动门有限责任公司
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