單片機(jī)畢業(yè)設(shè)計(jì)外文翻譯---基于at89s51單片機(jī)的微型土壤濕度檢測儀設(shè)計(jì)-單片機(jī)-文庫吧資料
2025-01-27 07:59本頁面
【正文】 o can improve and purify air, improve health. Water is necessary for flower’s growth ,it influences the growth of flowers greatly. Too much water or too little, will affect the normal growth and the kind of flower is verious, Different flowers need different amount of water. The needful water, mostly from the soil, in order to control flowers moisture in the soil properly, using PRO F soil humidity sensor design an automatic watering the flowers system, it may, automatically set for flowers watering according to the humidity limit, in order to meet the need of imperative water. Section 2 position of the system The whole system consists of SCM, circuit of DAQ, keyboard input and digital display circuit, output controlling circuit etc. circuit of CAQ is made of 4 SRH and adc , SRH makes flower’s soil humidity convert into analog voltage output, adc makes the output of analog voltage convert into digital quantity and send to microcontroller. AT89S52 is adopted, the collectted value of soil humidity is pared with a preset limit soil moisture, and it makes corresponding judgement according to the pared results, to control the output controlling circuit’s action. Keyin is used to set the value of soil humidity’s limit, LED is used to display the current soil humidity’s value. Miniature soil detector signal processing system including soil humidity sensor Device, A/D acquisition circuit, SCM and micro LCD. Its work After cheng is: soil soil wet degrees preach sensor, will wet degrees letter sent to A/D adopt set electricity Road, the A/D conversion, ine data digital signal into SCM Processing, finally will processing results sent to micro LCD display. Section 3 the hardware design of system the circuit’ s working principle The hard thing the original reason system graph as figure 2 shows. This article selects KSC 6V integrated relative humidity sensor, wait for after inserting the soil about 5s make sensor Implement fully contact with the soil, signal by integrated amp LM324 Vin the same phase Input terminal. The sensor39。 ine Many studies, the various problems in agricultural production also widely adjustable Inquiry. Research found that gardening cultivation, greenhouse flowers, awning vegetables one Some valuable varieties of soil moisture, soil has a high requirement, humidity At the time, not only seriously affecting its normal growth, and even cause planting product death Wu, causing serious damage. Farmers Therefore, engaged in this kind of agricultural very need a low cost, small volume and detection reliable soil .Soil humidity detector for water supply, provides the basis. In order to solve the above asked .Our problem, I unit bined with actual conditions of agricultural production, and the related units designed Home of high precision, to design the low cost of miniature soil moisture detection instrument. Along with the social life progress, people39。 A/D conversion。 Detector。 畢 業(yè) 設(shè) 計(jì) （外文翻譯材料） 2021 年 6 月 學(xué) 院 ： 專 業(yè) ： 學(xué)生姓名 ： 指導(dǎo)教師 ： 電氣與電子工程學(xué)院 電子信息工程 The design Based on AT89S51 miniature soil humidity detector design Abstract: facilitate master soil moisture conditions, design the miniature soil humidity detector. Its hardware system includes signal amplifier circuit, A/D circuit, SCM, micro LCD display and alarm circuit, etc.。 Software system includes A/D conversion driver, LCD driver two m
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