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目前矿用声光语音报警装置大多采用发光二极管焊接成字显示,显示内容死板,功能单一,制作既费时又费力而且控制电路多采用模拟电路或单片机,整个电路的调试比较麻烦,可靠性和实时性很难得到保证。针对这种情况,提出一种由SD卡存储显示内容,ARM Cortex-M3内核的STM32F103作为微控制器、LED屏显示的设计方案,使得显示内容灵活多变、丰富多彩,功能完善。充分发挥了STM32F103的高性能优势和在线调试功能,实现了大屏LED的无闪烁高亮度显示。最后再介绍电源系统的组成。
At present, most of mine audio and visual voice alarm devices are made of LED welding word display, display content rigid, single function, the production of both time-consuming and laborious and more control circuit using analog circuits or microcontrollers, the entire circuit debugging more cumbersome, reliability and real-time Sex is hard to be guaranteed. In view of this situation, proposed by the SD card to store the display, ARM Cortex-M3 core STM32F103 as a microcontroller, LED screen display design, making the display flexible, colorful, full-featured. Give full play to the STM32F103 high-performance advantages and online debugging capabilities to achieve large-screen LED flicker-free high brightness display. Finally introduce the composition of the power system.