MSK060C-0600-NN-S1-UG0-NNNN模块现货

MSK060C-0600-NN-S1-UG0-NNNN

显示模块LCD1602的参数功能
LCD1602有16个引脚，但程序的主引脚只有三个：RS（数据命令选择）、R/W
（读和写选择）、E（使能信号）。RS是寄存器选择，高电平选择数据寄存器，低电平
电平选择指令寄存器。R/W读写选择，高读电平，低写电平
活动E end以启用与之相关联的结束、返回和定时。此外，D0~D7为
8位双向数据线。
需要显示温度值，以便于冷库的监控和管理
经理。本设计使用LCD1602。P0为数据端口，P2为控制端口。图4为流程图
LCDl602的图表。
图4.LCDl602的流程图
测试结果
冷冻蔬菜、水果和乳制品，冷藏温度一般为5至13度
摄氏度，当温度超过设定温度上限时，SCM P3.7发送低电平
信号光电开关动作，使继电器开关闭合电机运行，达到
冷却，当温度再次回到以下设定温度值时
微控制器P3.7发出高电平信号，电机停止运行。如图5所示，当
温度在5摄氏度，LCD1602显示为16.5，红灯亮，电机开始旋转，
用于冷却的冷库。测试表明，设计达到了预期效果。
4.
图5.测试结果
结论
经过硬件电路和下位机软件的设计，系统通过RS485
与PC（QT编程接口）通信，实现冷库
温度监控系统，管理人员可通过PC或LCD1602 LCD屏幕显示数据
实时监测谷物温度。该系统可以通过PC设置温度报警
值，还可以显示实时温度场采样值，并将结果保存到
温度信息数据库表。
致谢
这项工作得到了中国江西省教育委员会的资助
（GJJ14743），九江市科学技术局科研基金（64），自然
九江大学科学基金（2014KJYB0022014KJ YB006）。。
工具书类
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[3] 吴春雷。粮食温湿度智能检测系统研究[D]。天津：
河北工业大学，2006。
[4] 傅桂翠，高泽西。高精度多路温度测量设计
微机控制[J]。测量系统，2006年。
[5] LU Yang.铂电阻温度测量的温度补偿方法
系统[J].计算机应用研究，2000。
[6] 尹海坤。基于单片机的温度控制系统的研究[J]。
技术致富指南，2013，（11）。
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[7] 马明建。数据采集与处理技术[M]。西安：西安交通大学
新闻，2012:1-2。
[8] 吴健，侯文。温度控制系统的设计[J]。科技
信息，2012，（2）：35-38。
[9] Liou Jing Chiou，面向更好的软件测试评估和需求跟踪，Journal of
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6.

MSK060C-0600-NN-S1-UG0-NNNN

MSK060C-0600-NN-S1-UG0-NNNN

Parameter function of display module LCD1602 
LCD1602 has 16 pin, but the main pin for program is only three: RS (data command select), R/W 
(read and write select), E (enable signal). RS is a register selection, high level select data register, low 
level select instruction register. R/W to read and write select, high level of reading, low level of write 
operation. E end to enable the end, the back and the timing associated with. In addition, the D0~D7 is 
8 bit bidirectional data line. 
Temperature values need to be shown to facilitate the monitoring and management of cold storage 
managers. This design uses LCD1602.P0 is the data port, P2 is the control port. Figure 4 is the flow 
chart of LCDl602. 
Fig.4. The flow chart of LCDl602 
Test results 
Frozen vegetables, fruits and dairy products, cold storage temperature is generally 5 to 13 degrees 
Celsius, when the temperature exceeds the set temperature upper limit, SCM P3.7 send low level 
signal photoelectric switch action so that relay switch closed motor operated, achieve the purpose of 
cooling, when temperature once again return to the set temperature value of the following 
microcontroller P3.7 sent a high level signal, the motor stopped running. As shown in Figure 5, when 
the temperature at 5 degrees Celsius, LCD1602 display is 16.5, the red light, the motor starts to rotate, 
the cold storage for cooling. The test shows that the design achieves the expected effect. 
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Fig.5. Test result 
Conclusion 
After the design of hardware circuit and the lower computer software, the system through the RS485 
and PC (QT programming the interface) communication, the realization of the cold storage 
temperature monitoring system, managers can be shown by PC or LCD1602 LCD screen data 
real-time monitoring of grain temperature. This system can through PC set temperature warning 
value, also can display real-time temperature field sampling value, and save the results to the the 
database table of temperature information. 
Acknowledgements 
This work was financially supported by the Educational Commission of Jiangxi Province, China 
(GJJ14743), Scientific Research Fund of Jiujiang science and technology bureau (64) and Natural 
Science Foundation of Jiujiang University (2014KJYB002,2014KJYB006).. 
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