Elevator calling and registering system and elevator
A technology of elevators and resistors, applied in the field of elevators, can solve the problems of increasing the cost of electronic boards, poor anti-interference ability of parallel communication, complicated installation, etc., and achieve the effect of convenient installation, debugging and maintenance, saving I/O resources, and strong anti-interference ability
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[0023] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.
[0024] The present invention utilizes the principle of electrical voltage division to provide an elevator call registration system with simple structure, convenient debugging, less wires and low cost, such as figure 1 Shown is a schematic circuit diagram of an elevator call registration system in a preferred embodiment of the present invention, the elevator call registration system includes: a resistance unit 1, a registration unit 2, a power supply 3 and a pull-down resistor R d ;
[0025] One end of the resistance unit 1 is connected to the power supply 3, and the other end passes through the pull-down resistor R d grounding;
[0026] The resistance unit 1 includes two or more resistors R1-Rn and two or more push-button switches S1-Sn, each of the resistors is connected ...
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