基于單片機(jī)的智能水災(zāi)報(bào)警系統(tǒng)的設(shè)計(jì)畢業(yè)設(shè)計(jì)-wenkub
2023-07-13 16:16:45 本頁面
【正文】 rrential rain and flood often happens .Affected by this monsoon climate, most of our region is hot wet and more rain in summer .Not only for short duration, high strength local rainstorm often happens, but also rain in wide range of the valley with long duration often happens .Annually, floods disaster happens in large range of our nation with varying degrees. Therefore, Perfect hydrological monitoring can help realtime monitoring hydrological in all regions with the central station and Make timely and reasonable measures for a variety of unexpected situations to prevent disasters and reduce the damage caused by disasters. The design use the AT89C51 chip as the core, bined with the necessary peripheral circuits .We design the hydrological monitoring system with 51 MCU as a core. It consists of 12V DC power supply. On the hardware side, in addition to MCU, It uses SDI12 bus to connect multiple sensors .Collected by TDC40(SDI12 to RS232 converter) the water level sensor data is sent to the MCU ports PO .The MCU use FLASH to store realtime data and transport the collected water level data to the central station through munication channel, such as the PSTN, GSM, COMPASS satellite, maritime satellite and so on. On the software side, we use C language for programming. By programming on the MCU, we realize hydrological monitoring system for the entire hydrological data collection, storage and transport procedures for monitoring, to determine and control and human exchange. Key word: MCU SDI12 data acquisition water level monitoring 目 錄 第一章 緒言 ....................................................................................................................... 1 第二章 單片機(jī) 89C51 簡介 ................................................................................................. 2 第一節(jié) 單片機(jī)的特點(diǎn) .................................................................................................. 2 第二節(jié) 單片機(jī) 89C51 介紹 .......................................................................................... 2 第三章 基于單片機(jī)的水災(zāi)監(jiān)測技術(shù) ................................................................................. 4 第一節(jié) AT89C51 內(nèi)部結(jié)構(gòu) ........................................................................................... 4 第二節(jié) AT89C51 引腳及功能 ..................................................................................... 5 第三節(jié) 時(shí)鐘震蕩電路設(shè)計(jì) .......................................................................................... 7 第四節(jié) 電源電路設(shè)計(jì) ................................................................................................ 7 第四章 A/D 轉(zhuǎn)換器 TLC2543 ........................................................................................... 12 第一節(jié) TLC2543 的編程要點(diǎn) ....................................................................................... 12 第二節(jié) TLC2543 與 51 系 列單片機(jī)接口 ................................................................... 13 第三節(jié) 數(shù)據(jù)采集程序設(shè)計(jì) .
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