【摘要】：為了改善日光溫室大棚內(nèi)的晝夜溫度更適合作物的生長,利用大棚支撐骨架和水作為熱循環(huán)的主體,白天吸收太陽能并儲存,晚上將儲存的能量釋放給溫室加熱。借助無線傳感器網(wǎng)絡(luò)設(shè)計太陽能集熱調(diào)溫系統(tǒng),系統(tǒng)主要由溫度采集、執(zhí)行節(jié)點和中心決策節(jié)點組成,通過采集室外溫度、骨架內(nèi)水溫和棚內(nèi)溫度,中心決策節(jié)點再根據(jù)控制策略將相應(yīng)的指令發(fā)送給對應(yīng)的執(zhí)行節(jié)點對循環(huán)泵、閥門和加熱設(shè)備進(jìn)行控制,從而實現(xiàn)對棚內(nèi)溫度的自動智能調(diào)節(jié)。通過對比試驗發(fā)現(xiàn),設(shè)計的太陽能集熱調(diào)溫系統(tǒng)工作穩(wěn)定,可提高夜間大棚內(nèi)的平均溫度(達(dá)2.78℃),避免作物被凍傷而減產(chǎn),還可平衡中午棚內(nèi)過高的溫度,將其控制在最適宜的范圍(20~25℃)內(nèi),從而有效延長作物進(jìn)行光合作用的時間,更利于作物的生長。
[Abstract]:In order to improve the temperature of day and night in the greenhouse, the greenhouse supports the skeleton and water as the main body of the thermal cycle, absorbs and stores the solar energy during the day, and releases the stored energy to the greenhouse at night. With the help of wireless sensor network, the solar energy heating and regulating system is designed. The system is composed of temperature collection, execution node and central decision node. According to the control strategy, the central decision node sends the corresponding instruction to the corresponding executive node to control the circulating pump, valve and heating equipment, so as to realize the automatic intelligent adjustment of the temperature in the shed. It is found that the designed solar energy heating and regulating system can improve the average temperature (up to 2.78 鈩，

本文編號：2349181