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基于单片机的无线温/湿度采集与控制系统 被引量:8
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作者 蒋正金 《现代电子技术》 2012年第17期126-129,132,共5页
为了研究温/湿度的无线采集与控制,提出基于单片机AT89C52和AT89C2051作为微处理器的无线温/湿度采集与控制系统。由控制器模块、键盘模块、液晶显示模块、无线发射/接收模块、报警模块、空调系统组成。采用温度传感器DS18B20采集温度;... 为了研究温/湿度的无线采集与控制,提出基于单片机AT89C52和AT89C2051作为微处理器的无线温/湿度采集与控制系统。由控制器模块、键盘模块、液晶显示模块、无线发射/接收模块、报警模块、空调系统组成。采用温度传感器DS18B20采集温度;采用线性频率输出集成湿度传感器HF3223采集相对湿度;采用键盘对目标温度进行人工设定;采用液晶显示器RT12864和LCD1602显示温度值和湿度值;采用PID算法产生的PWM波来实现对温度的控制;采用无线发射/接收模块实现温度值和湿度值的无线传输和显示。 展开更多
关键词 /湿度采集与控制 PID算法 度传感器 湿度传感器 无线发射/接收模块
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基于SHT15型智能传感器的弹药库温/湿度监控系统的设计 被引量:12
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作者 向红军 雷彬 《国外电子元器件》 2006年第1期64-66,共3页
针对温/湿度对弹药储存的影响和传统弹药库温/湿度监控系统的弊端,采用SHT15型智能传感器设计了一套智能监控系统,对系统的结构原理和软件设计进行了分析。
关键词 SHT15 弹药 仓库 温/湿度控制 设计
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DS18B20型数字温度传感器在烟叶烤房监测仪中的应用 被引量:10
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作者 吴亮 《国外电子元器件》 2005年第10期19-21,共3页
文中介绍DS18B20型数字温度传感器内部结构及工作时序,给出以DS18B20和单片机为核心设计的烟叶烤房温/湿度控温度控制装置的硬件及软件设计方案。实践证明该装置的温湿度控制准确、测量精度高、控制性能良好。
关键词 DS18B20 烟叶烤房 温/湿度控制
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高层建筑电气设备间智能控制管理系统的研究与设计 被引量:3
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作者 张海明 易爵峰 +1 位作者 肖丹宁 范斯远 《智能建筑与城市信息》 2014年第5期51-53,共3页
电气设备间是指高层建筑中放置电信设备和计算机网络设备以及建筑物配线设备,并进行网络管理的场所。电气设备间作为高层智能建筑的中枢,一旦出现故障,整个建筑智能化设备的运行将会受到严重影响,甚至完全瘫痪,因此,对设备间的管理维护... 电气设备间是指高层建筑中放置电信设备和计算机网络设备以及建筑物配线设备,并进行网络管理的场所。电气设备间作为高层智能建筑的中枢,一旦出现故障,整个建筑智能化设备的运行将会受到严重影响,甚至完全瘫痪,因此,对设备间的管理维护是一项极其重要的工作。此文主要针对一些容易导致建筑设备间故障的原因做出分析,研究并设计了用于高层建筑电气设备间的智能控制管理系统,该系统能够实时监控和调节电气设备间的温度、湿度和有害气体浓度,使之工作在标准范围内,从而保证设备间的电气设备安全且稳定地运行。 展开更多
关键词 设备间 智能控制 火灾预防 温/湿度控制
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Fruit protected cultivation in China 被引量:2
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作者 Gao Huajun, Wang Saoming, and Wang Jiaxi Shandong Institute of Pomology, Tai’an 271000, China 《Hunan Agricultural Science & Technology Newsletter》 2003年第3期2-9,共8页
Protected fruit cultivation in China has developed very quickly from the early 1990s, and now it is an important branch in fruit cultivation. A brief review including fruit species, developing history, growing area, o... Protected fruit cultivation in China has developed very quickly from the early 1990s, and now it is an important branch in fruit cultivation. A brief review including fruit species, developing history, growing area, output, and distribution in the whole country is made in the paper. Characteristics of the dominant kinds of greenhouse, environmental control methods, and standards of temperature, humidity, light and CO2 for different fruit species are presented. Information on varieties, growing benefits, special management practices and other aspects of the main fruit species used for protected cultivation are also presented. 展开更多
关键词 FRUIT protected cultivation GREENHOUSE environmental control
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Design of greenhouse temperature and humidity wireless control system based on CC3200
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作者 ZHAO Cheng-cheng DING Hai-fei +1 位作者 LIU Wen-yi KANG Xi 《Journal of Measurement Science and Instrumentation》 CAS CSCD 2018年第2期134-139,共6页
Referring to the shortages that the process of traditional greenhouse measurement by using thermometer and hygrometer is complex,the measurement result is not accurate,and the control system operation is cumbersome,a ... Referring to the shortages that the process of traditional greenhouse measurement by using thermometer and hygrometer is complex,the measurement result is not accurate,and the control system operation is cumbersome,a greenhouse temperature and humidity(TH)control system based on CC3200 is designed.The system uses FPGA as the main controller,sends the TH signals to the wireless module CC3200 by controlling DHT22.The proposed system realizes the remote transmission of data and the automatic control of system. 展开更多
关键词 field programmable gate array(FPGA) CC3200 DHT22 temperature and humidity(TH)of greenhouse wireless control
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Temperature and Humidity Control System Identification Based on Neural Network in Heating and Drying System
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作者 Zhang Xiaowei 《International Journal of Technology Management》 2014年第7期81-85,共5页
Artificial neural network has unique advantages for massively parallel processing, distributed storage capacity and self-learning ability. The paper mainly constructs neural network identifier and neural network contr... Artificial neural network has unique advantages for massively parallel processing, distributed storage capacity and self-learning ability. The paper mainly constructs neural network identifier and neural network controller for system identification and control on temperature and hmnidity of heating and drying system of materials. And the paper introduces the structure and principles of neural network, and focuses on analyzing learning algorithm, training algorithm and limitation of the most widely applied multi-layer feed-forward neural network ( BP network) , based on which the paper proposes introducing momentum to improve BP network. 展开更多
关键词 neural network BP algorithm material heating and drying TEMPERATURE humidity
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Research on Intelligent Control of Roving Frame
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作者 王有庆 李从心 王占杭 《Journal of Donghua University(English Edition)》 EI CAS 2003年第4期141-144,共4页
A new model of roving frame FA467, which uses four frequency inverters to replace the complex mechanical transmission, is discussed. A Neuron-PID is designed to reduce the effect of various parametric variations such ... A new model of roving frame FA467, which uses four frequency inverters to replace the complex mechanical transmission, is discussed. A Neuron-PID is designed to reduce the effect of various parametric variations such as load inertia. To ensure the constant spinning tension all over the spinning process, a feedforward controller using iterative learning control algorithm is desigend to avoid disturbances caused by changes of temperature, humidity and so on. The simulation result is shown to illustrate the effectiveness of the proposed algorithm, and now the roving frame FA467 has been developed successfully. 展开更多
关键词 roving frame Neuron-PID controller iterative learning control frequency inverter
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Design and study of greenhouse intelligent monitor system
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作者 ZHAO Lin LIU Yining 《International English Education Research》 2017年第2期84-85,共2页
This is a greenhouse ecological parameters measurement and control system, the system implements the data collection of field temperature, humidity and carbon dioxide by using the 1-wire bus network which consist of 1... This is a greenhouse ecological parameters measurement and control system, the system implements the data collection of field temperature, humidity and carbon dioxide by using the 1-wire bus network which consist of 1-wire bus temperature sensor, 1-wire bus humidity sensor, Analog-to-Digital Converter(ADC), CO2 sensor and intelligent battery monitor. 展开更多
关键词 GREENHOUSE 1-Wire Bus Data Acquisition Software Design
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天津环渤海国际经贸大厦楼宇自控系统的节能策略
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作者 张金栓 《智能建筑》 2006年第11期61-61,共1页
本文以天津环渤海国际经贸大厦为例,简要介绍了楼宇自控系统的节能策略。
关键词 /湿度参数设定间歇循环控制
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