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所谓存在检测(Presence Detector)组件,即可以检测操作人员在一定范围内的存在与否,进而对操作人员起到保护作用的组件,包括安全地垫、安全触边、安全激光扫描器。1安全地垫1.1作用利用作用在安全地垫底板上的压力变化,检测人和物体的存在。1.2工作原理安全地垫工作原理如图2-1所示。两片导电金属板由不导电隔板分隔,在保持一定间隔的状态下置于底板内部,并通过底板和专用控制器构成回路。当人的足部踏上底板时,内部的两片金属板将接触。专用控制器检测到这一状态后,输出“OFF”信号。
The so-called Presence Detector, a component that can detect the presence or absence of an operator within a certain range and thus protects the operator, includes safety mats, safety contacts, and safety laser scanners. 1 safety mats 1.1 role in the role of the safety mat floor pressure changes, the detection of the presence of people and objects. 1.2 Working Principle Safety mats works as shown in Figure 2-1. The two conductive metal plates are separated by non-conductive separators, placed inside the bottom plate with a certain interval, and formed a loop through the bottom plate and a dedicated controller. When a person’s foot steps on the floor, the two internal metal plates will touch. After the dedicated controller detects this status, the “OFF” signal is output.