ZHANG Tao, JIN Long-xu, LI Guo-ning, ZHANG Yu-ming. Design and Implementation of Man-Machine Interface of Wireless Control System[J]. , 2010,25(6): 841-845
ZHANG Tao, JIN Long-xu, LI Guo-ning, ZHANG Yu-ming. Design and Implementation of Man-Machine Interface of Wireless Control System[J]. , 2010,25(6): 841-845DOI:
可通过它发送命令到控制系统。液晶模块可实现中英文混排、LOGO位图显示、反显等一系列功能。实测无线通信距离最大可达到50 m
20 m以内可实现稳定的数据传输。该人机接口可用于无线抄表、数控等控制系统中。
Abstract
LCD and matrix keyboard are used usually in embedded systems for the intercourse between the user and the machine. In this paper
a 19264 LCD is used as the monitor
two ZigBee nodes are used for wireless control
and a matrix keyboard is used to connect with the LCD module through which the user can send command to the control system. The LCD module can display Chinese and English characters together
homochromous bitmaps
and objects in reverse. The measured maximum distance can reach to 50 m and stable communication can be realized within 20 m. This man-machine interface can be used in wireless meter reading system