Dot matrix elevator display device with network interface and control method thereof

Abstract

The invention provides a dot matrix elevator display device with a network interface, which comprises a variable voltage stabilizing circuit, a CAN interface circuit, a CAN drive circuit, a micro control circuit, a dot matrix display circuit and a voice prompt circuit. The device simplifies the wiring, enables the circuit board wiring to be simpler, is capable of dynamically displaying up-down information of an elevator, can prompt successful registration in a voice mode, and is additionally provided with the CAN network interface so that the display device can be accessed in a monitoring system of the whole elevator. The invention also provides a control method of the dot matrix elevator display device with a network interface, which utilizes the CAN network interface to enable the display device to be accessed in the monitoring system of the whole elevator, and transmits the floor variation data to a micro control chip through a CAN controller; and the micro control chip controls the dot matrix display circuit to display the floor information in a rolling mode based on line signals and column signals, and the display effect is vivid.

Description

technical field [0001] The invention relates to an elevator floor display device and a control method thereof, in particular to a dot matrix elevator display device with a network interface and a control method thereof. Background technique [0002] The traditional elevator floor display device uses incandescent lamps as the light source, and hollow Arabic numerals or Roman numerals are engraved on the surface of the display board, and the floors reached by the elevator are indicated by the lighting of specific numbers. This method shows slowly, the light source is easily damaged, there are many wirings, and the display panel is bulky, so it is not suitable for high-speed elevators that need to be displayed quickly and high-rise elevators with many floors. [0003] With the development of LED (light emitting diode), the elevator display device with incandescent lamp as light source is gradually replaced by the elevator display device with LED as light source because LED has ...

AI Technical Summary

Problems solved by technology

The seven-segment code display is an instantaneous change display at a fixed position, lacks dynamic effects, and the display effect is dull; the parallel control wiring is complicated, the anti-interference ability is poor, and there are many wirings when the floor is high; due to the complicated wiring, the board area is large and there are failures Time to troubleshoot

At present, the floor display devices in the elevator industry are mostly directly connected to the control keyboard, lacking a network interface connected to the entire elevator monitoring system, and the degree of electrical integration is low

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