摘要
设计了一款基于Cortex-M4的智能控制器,包含6路DI、6路DO、2路脉冲输出、4路A/D、2路D/A、1路RS232通讯、1路RS485通讯、1路以太网通讯和1个4.3英寸触摸显示屏。主芯片采用STM32F429ZGT6处理器,A/D电路是基于MCP3204的12位分辨率转换电路,采集模拟量电压;D/A电路是基于压流转换芯片XTR111的转换电路,输出4~20 mA电流,分辨率为0.05%。采用隔离电源模块组成全隔离供电系统。采用4.3英寸触摸显示屏进行人机交互。采用模块化设计,方便硬件扩展与裁剪。内存容量33 MB,可以嵌入实时操作系统、智能控制算法和图形界面。采用该控制器实现对暖箱的温度控制,超调<1.3℃,稳态误差<0.1℃。
This topic designs an intelligent controller based on Cortex-M4, including 6 channels DI, 6 channels DO, 2 channels pulse output, 4 channels A/D, 2 channels D/A, 1 channel RS232 communication, 1 channel RS485 communication, 1 channel Ethernet communication and 1 4.3-inch display touch screen. The main chip adopts STM32 F429 ZGT6 processor. The A/D circuit is a 12-bit resolution conversion circuit based on MCP3204, and the analog voltage is collected. D/A circuit is a conversion circuit based on voltage and current conversion chip XTR111, with output current of 4-20 mA and resolution of 0.05%.The isolated power supply system is composed of isolated power supply module.4.3-inch display touch screen for man-machine interaction. Modular design facilitates hardware expansion and tailoring. With a memory capacity of 33 M bytes, you can embed real-time operating systems, intelligent control algorithms, and graphical interfaces. This controller realizes the temperature control of the warm box, over shoot < 1.3 ℃, steady-state error < 0.1 ℃.
作者
赵英俊
聂晓光
殷华文
ZHAO Yingjun;NIE Xiaoguang;YIN Huawen(Electronic and Electrical Engineering,Nanyang Institute of Technology,Nanyang 473004,China)
出处
《电子与封装》
2019年第12期41-45,共5页
Electronics & Packaging
