Elevator car platform sill IC card button extending control circuit

Abstract

The invention discloses an elevator car platform sill IC card button extending control circuit and belongs to the technical field of control circuits. A serial chip comprises total sixteen pins whichare eight serial input ends and eight parallel output ends. The eight serial input ends are VCC, GND, SI, G, RCK, SCK, SCLR and Q7'. The VCC and SCLR are connected to a power source of an elevator circuit in parallel. The GND is connected to the ground of the elevator circuit in parallel. According to the control circuit, the circuit control manner of the serial chip or a joint door chip is utilized, the input ports of the serial chip or the output ports of the joint door chip are utilized for being connected with an elevator control button circuit and an elevator floor selecting output circuit correspondingly, circuit logic of the hoist door chip is utilized for achieving the function of controlling floor selecting through an IC card, namely, in the assembling process, an elevator controlboard circuit only needs to be connected with the IC card control circuit in parallel through the circuit, the installing work amount is reduced, and applicability of an IC card control system is also improved to a certain degree.

Description

technical field [0001] The invention relates to the technical field of control circuits, in particular to an elevator car IC card button expansion control circuit. Background technique [0002] When the traditional IC control circuit is applied to the elevator button to control the floor selection, there are the following deficiencies: [0003] 1. The IC card swiping system of the traditional elevator needs to connect the button line on the elevator operation box with the matching IC card layer selector before it can be used. It will cause a lot of work and error-prone during production assembly and on-site inspection; [0004] 2. The traditional elevator IC card system needs to add a controller and a layer selector to the standard elevator operation box. During the production in the workshop, the standard layer selection button line is broken and connected in series with the IC card selection controller. Realize the control of the buttons in the operation box. Controlling ...

AI Technical Summary

Problems solved by technology

[0003] 1. The IC card swiping system of the traditional elevator needs to connect the button line on the elevator operation box with the matching IC card layer selector before it can be used. It will cause a lot of work and error-prone during production assembly and on-site inspection;

[0004] 2. The traditional elevator IC card system needs to add a controller and a layer selector to the standard elevator operation box. During the production in the workshop, the standard layer selection button line is broken and connected in series with the IC card selection controller. Realize the control of the buttons in the operation box. Controlling the buttons in this way will cause complex construction and high cost;

The IC card control method in the prior art usually requires cumbersome wire connection during the initial installation, and the assembly workload is large. At the same time, the control method is cumbersome, the construction is complicated, and the cost is high. Its scope of application is limited, and to a certain extent Applicability and universality of IC card swiping system

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