Building floor choosing device in elevator compartment

Abstract

The invention relates to elevator technical field, in particular to a layer-selecting device in the elevator car, comprising a control module of microprocessor, coprocessors as the microprocessor and the control module of programmable logic device which is connected with the coprocessors, a display module, a key-press module, a serial module which is used to communicate between the microprocessor and the hand wheel controller, and a CAN bus communication module which is used to communicate between the microprocessor and the core controller of the elevator. The programmable logic device is respectively connected with the display module and the key-press module, and is used to control the display module according to the output information from the microprocessor to realize the display of the floor movement direction and the floor information, and is used to realize the scanning of the pressing keys, the decoding, and the subtractive dithering, and transports the key-press information to the microprocessor. The layer-selecting device in the elevator car has the advantages of improving calling elevator real time, increasing the reliability of the circuit, and reconfiguration.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to a floor selection device in an elevator car. Background technique [0002] The floor selection device in the elevator car is used for the display of floor information inside the elevator car, the collection of elevator button signals, the lighting of the elevator indicator lights, and the communication with the main controller. [0003] With the increase of the number of residential floors, the specifications, electrical standards, and wiring methods of the elevator floor selection buttons have also changed accordingly. This requires the car floor selection circuit to expand more peripherals without increasing the volume of the circuit board. Interface, but also to ensure the simplicity and ease of maintenance of the circuit. In addition, designers also require the car floor selection device to be adaptable and reconfigurable to business changes during the development stage or...

AI Technical Summary

Problems solved by technology

According to the published documents, before the present invention, the elevator car floor selection devices of major elevator manufacturers at home and abroad, such as Otis, Mitsubishi, etc., generally adopt discrete digital devices to make, which not only increases the complexity of interface circuits and wiring methods. Complexity, which affects reliability and increases maintenance difficulty

The commonly used floor selection device in the elevator car is not suitable for the requirements of future elevator development

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