摘要
传统的温湿度控制系统在控制饲料配方所处环境温度和湿度时,很难在短时间内达到标准值,控制过程波动较大;针对上述问题,基于CPLD芯片设计了一种新的温湿度控制系统,系统硬件结构中的传感器选用SH11传感器,利用CLPD芯片校对已经得到的温度信号和湿度信号,通过2个按键和多个接口设置系统网关,引用SS14设置控制电路,结合继电器调节温度和湿度;在IAR开发平台上使用C语言和汇编语言编写了传感器采集节点程序、控制节点程序和网关程序;为检测系统效果,与传统控制系统进行实验对比,结果表明,在60秒单位时间内,传统控制系统系统湿度变化在1.28~14.21℃之间,湿度变化在0.05%~78.54%RH,区间变化较大;基于CPLD芯片的温、湿度控制系统湿度控制变化在10.23%R^14.8%RH之间,温度变化在4.44~11.2℃之间,波动较小。
The traditional temperature and humidity control system is difficult to reach the standard value in a short time when controlling the ambient temperature and humidity of the feed formulation, and the control process fluctuates greatly. Aiming at the above problems, a new temperature and humidity control system is designed based on CPLD chip. The sensor in the hardware structure of the system uses SH11 sensor. The CLPD chip is used to proofread the obtained temperature signal and humidity signal. It is set by 2 buttons and multiple interfaces. System gateway, reference SS14 set control circuit, combined with relay to adjust temperature and humidity. The sensor acquisition node program, control node program and gateway program are written in C language and assembly language on the IAR development platform. In order to test the system effect, compared with the traditional control system, the results show that the humidity of the traditional control system system varies from 1.28 ℃ to 14.21 ℃ in 60 seconds, and the humidity changes from 0.05% RH to 78.54% RH. big change. The humidity control of the temperature and humidity control system based on CPLD chip is between 10.23%R^14.8%RH, and the temperature variation is between 4.44 ℃ and 11.2 ℃, with little fluctuation.
作者
郭贤海
Guo Xianhai(College of Electronic and Information Engineering,Taizhou University,Taizhou 317000,China)
出处
《计算机测量与控制》
2019年第9期71-75,共5页
Computer Measurement &Control
基金
公益技术研究农业项目(2015C32113)
关键词
CPLD芯片
温度控制
湿度控制
饲料配方
温湿度检测
CPLD chip
temperature control
humidity control
feed formulation
temperature and humidity detection
