Chengdu Dragon Optical Company High-rise Residential Elevator Display System

The elevator is a common means of delivery, to facilitate our daily life. While waiting for the elevator and riding also take up the fragmented time of people, and is applied to the elevator display system can effectively use these fragmented time, it has great economic value in the dissemination of information and product promotion.Paper describes the current system structure of the elevator display system, working principle and hardware circuit design methods, analyzed the design of related drivers and embedded operating system migration and development. Paper designed the elevator display system, combining software with hardware design, using the ability to control the microprocessor, can switch the display information easily. to achieve a variety of display effect to promote the role of information.In the design of the system software, using an embedded operating system RL-RTX. It completed the embedded operating system on the microcontroller LPC2138 transplant. At the same time the system used the concept of modular design method, the system functions was divided into individual tasks, these tasks with embedded operating system provides semaphores, event flags and other services to achieve data transfer and synchronize among tasks. At the same time, this can approach software development system to improve the stability of the system, but also speed up the development progress. On the information display, transplanted proprietary embedded graphical user interface ZLG / GUI display software. The software provides a number of controls and display font data, so the interface design would be more beautiful.In this paper, using the Altium Designer complete circuit design software hardware circuit schematic design and PCB design plans, and using RealView Microcontroller Development Kit tools to complete the development of the system software code design, development and system debugging. From the results of the test, the elevator display system can receive data correctly and in accordance with the requirements of the corresponding display on the LED display to complete the display.