电动门的开门信号是触点信号
The opening signal of the electric door is a contact signal,
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，适用于行走速度正常的人员通过的场所，它的特点是一旦在门附近的人员不想出门而静止不动后，雷达便不再反应，电动门就会关闭，对门机有一定的保护作用；红外传感器对物体存在进行反应，不管人员移动与否，只要处于传感器的扫描范围内，它都会定州苗木 保定通风管道 丝网立柱模具 尼龙输送带 保定防水 保定空压机 高碑店养老院反应即传出触点信号。缺点是红外传感器的反应速度较慢，适用于有行动迟缓的人员出入的场所。另外，如果电动门接受触点信号时间过长，控制器会认为信号输入系统出现障碍。而且自动平移门如果保持开启时间过长，也会对电气部件产生损害。由于微波雷达和红外传感器并不了解接近电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，更方便的是所谓肘触开关。肘触开关很耐用，特别是它可以用胳膊肘来操作。避免了手的接触。还有脚踏开关，功能一样，但对防水的要求较高，而且脚踏的力量很大，容易使脚踏开关失效。还有一种带触点开关的拉手，当拉手被推(或在反方向拉)到位时，向门机提供触点信号。
Microwave radar and infrared sensor are two commonly used signal sources: microwave radar is a displacement response to objects, so it has a fast response speed, and is suitable for places where people with normal walking speed pass. Its feature is that once people near the door do not want to go out and stay still, the radar will no longer respond, and the electric door will be closed, which has a certain protective effect on the door operator; The infrared sensor reacts to the existence of objects. No matter whether people move or not, as long as it is within the scanning range of the sensor, it will react and send out contact signals. The disadvantage is that the reaction speed of the infrared sensor is slow, which is suitable for places where people with slow movement enter and exit. In addition, if the electric door accepts the contact signal for a long time, the controller will think that the signal input system is blocked. Moreover, if the automatic sliding door is kept open for too long, it will also damage the electrical components. Because the microwave radar and infrared sensor do not know whether people close to the electric door really want to enter, they prefer to use the key switch in some occasions. The key switch can be a contact type button, and the so-called elbow switch is more convenient. The toggle switch is very durable, especially it can be operated with the elbow. Avoid hand contact. There is also a foot switch, which has the same function, but has high requirements for waterproof, and the foot force is very strong, so it is easy to make the foot switch invalid. There is also a handle with a contact switch that provides a contact signal to the door operator when the handle is pushed (or pulled in the opposite direction) in place