豬舍環(huán)境監(jiān)控系統的設計研究

2萬字
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摘要 本課題設計是基于可編程控制器S7-200和組態(tài)軟件構建實時環(huán)境監(jiān)控系 統，實現了對豬舍環(huán)境（溫度、濕度、光照、硫化氫、CO2、氨氣等）監(jiān)控與調節(jié)，使管理人員可以實時掌控豬舍內環(huán)境。
系統采用分級控制的設計思想，系統由上位機和下位機構成。下位機主要完成豬舍環(huán)境參數的采集與處理，通過數據線將數據傳至上位機。上位機可以設定豬舍環(huán)境參數，實時查詢各種工作狀態(tài)，從而實現豬舍環(huán)境的分級控制。
采用上位機和下位機的分級控制與監(jiān)控，大大加強了系統的靈活性，簡化了系統的布線，而且方便增減傳感器的個數和種類，系統易于擴展、升級。
本文完成了整個系統的軟硬件設計，實現了一種可應用于豬舍的智能環(huán)境監(jiān)控系統。此豬舍環(huán)境參數監(jiān)控系統不僅可以改善豬舍環(huán)境，提高豬產品的生產效率和豬肉品質，而且可以節(jié)約資源和成本。通過本系統的設計使我國生豬養(yǎng)殖業(yè)朝著規(guī)?；?、環(huán)?；图s化方向發(fā)展。
關鍵詞：分級控制 實時監(jiān)控 豬舍環(huán)境 可編程控制器 品質


Design of the System for Piggery Environmental Monitoring and Control
Abstract Based on the S7-200 programmable controller and configuration software,his topic is designed to build a real-time environment monitoring system,to monitor and adjust the piggery environment (temperature、humidity、light、H2S、CO2 and so on).By this way, managers can control environment in piggery in time.
The system adopts the design philosophy of hierarchical control system. It consists of upper machine and lower machine. Lower machine mainly complete the acquisition and processing of piggery environmental parameter,and data can be transmitted to the upper machine through the line. Upper machine can set environmental parameters of the piggery,which can query various working status in time,so that we can realize hierarchical control.
Hierarchical control can enhance the flexibility of the system,and simplify the wiring system. At the same time,it is convenient to change the number of sensors and variety, so the system is extensible and can upgrade easily.
This paper completes the software and hardware design of the whole system,and realizes a kind of intelligent environment monitoring system ,which can be used in piggery .The system can not only improve the quality of farm environment, but also improve the efficiency of pig production,and pork quality, as well as save resources and costs. Through the design of this system,it can improve the environment of pig and feeder,the quality of pork products can be improved as well. By this way, it can make our country towards to the scale environmental protection and intensive pig farming.
Key words Hierarchical control Real time monitoring Piggery environment
Programmable controller The quality


目錄
第一章 緒論 1
1.1系統研究的目的和意義 1
1.2國內外研究現狀和發(fā)展趨勢 3
1.3系統研究內容 5
第二章 系統的總體設計 6
2.1豬舍環(huán)境監(jiān)控系統的組成 6
2.2系統工作過程 7
第三章 系統的硬件設計 8
3.1硬件系統原理圖 8
3.2主板機型的選擇 8
3.3開關量I/O模塊的選擇 9
3.3.1輸入模塊的選擇 9
3.3.2輸出模塊的選擇 11
3.4模擬量I/O模塊的選擇 12
3.5傳感器的選擇 13
3.5.1溫度傳感器的選擇 13
3.5.2濕度傳感器的選擇 13
3.5.3CO2傳感器的選擇 14
3.5.4氨氣傳感器的選擇 14
3.5.5硫化氫傳感器的選擇 14
3.5.6光照傳感器的選擇 15
3.6其他硬件設備 15
3.7 PLC通信 16
3.7.1 Modbus協議 16
3.7.2 組網硬件、工作方式及通信幀 17
第四章 系統的軟件設計 19
4.1軟件系統總體介紹 19
4.2上位機軟件設計 20
4.3下位機軟件設計 21
4.3.1溫度采集監(jiān)控現狀 21
4.3.2溫度采集監(jiān)控系統流程圖 22
4.3.3溫度控制的基本思路 23
4.3.4數據的變換處理 24
4.4.5設計梯形圖介紹 25
4.4軟件系統綜述 31
第五章 總結和展望 32
5.1總結 32
5.2展望 32
致謝 34
參考文獻 35