Mushroom factory is an emerging production mode that is relied on facility and equipment by creating a suitable,steady,and uniform growing environment to accommodate the demand of edible fungus at each stage of growth...Mushroom factory is an emerging production mode that is relied on facility and equipment by creating a suitable,steady,and uniform growing environment to accommodate the demand of edible fungus at each stage of growth.Therefore,an optimal range of key environmental factors(temperature,humidity,light,and CO_(2) concentrations)in mushroom facilities is crucial to achieving satisfactory production rates.This research aimed to provide an overview of recent progress on indoor environmental studies of mushroom cultivation facilities from three perspectives,1)the development of environmental monitoring and controlling systems;2)the application of computer modelling in addressing indoor environmental issues;3)the refinement of mushroom facility design,including structure and ventilation scheme.With the aid of cutting-edge technologies,accomplishments have been made in developing smart farming systems that facilitate real-time recording of environmental parameters and automatic regulation of equipment,which helps the establishment of growth model for specific mushroom species.Computational Fluid Dynamics(CFD)modelling has been adopted by researchers to investigate indoor airflow patterns and assess the distribution of critical environmental parameters.Studies have been conducted to modify the design of mushroom facility to improve the performance in structural stability,ventilation efficiency,and internal environmental condition.However,some existing problems still need further investigations,such as the lack of design guidelines,energy-saving strategies,and Artificial Intelligent(AI)quality control.Therefore,this overview was expected to provide constructive insights for future studies in addition to references of previous studies.展开更多
利用接收信号强度指示(RSSI--Received Signal Strength Indicator)定位因为其借助的设备较少,实现方法简单而被广泛应用;在简述利用接收信号强度指示(RSSI)定位原理的基础上,以生活实际中经常用到的蓝牙为例研究两个蓝牙设备之间的距...利用接收信号强度指示(RSSI--Received Signal Strength Indicator)定位因为其借助的设备较少,实现方法简单而被广泛应用;在简述利用接收信号强度指示(RSSI)定位原理的基础上,以生活实际中经常用到的蓝牙为例研究两个蓝牙设备之间的距离与接收信号强度指示之间的关系;并在三种具体环境中建立了相应的关系曲线图,虽然并没有给出具体的解析表达式,但仍然能在一定程度上反应设备间距离与RSSI的关系,并为进一步的研究打下了坚实的基础;得出了在空旷环境比室内以及楼道环境下信号传播效果要好,而且三种环境下信号强度都随着距离的增加而减小,在有障碍物的情况下比没有障碍物衰减更大。展开更多
基金the Key Laboratory of Storage of Agricultural Products,Ministry of Agriculture and Rural Affairs(Grant No.Kf2021009 and Kf2021005)Key Research and Development Plan Project of Hebei Province(Grant No.21326315D)+1 种基金Tianjin“131”Innovative Talent Team(Grant No.20180337)Natural Science Foundation of Tianjin City(Grant No.19JCYBJC29400).
文摘Mushroom factory is an emerging production mode that is relied on facility and equipment by creating a suitable,steady,and uniform growing environment to accommodate the demand of edible fungus at each stage of growth.Therefore,an optimal range of key environmental factors(temperature,humidity,light,and CO_(2) concentrations)in mushroom facilities is crucial to achieving satisfactory production rates.This research aimed to provide an overview of recent progress on indoor environmental studies of mushroom cultivation facilities from three perspectives,1)the development of environmental monitoring and controlling systems;2)the application of computer modelling in addressing indoor environmental issues;3)the refinement of mushroom facility design,including structure and ventilation scheme.With the aid of cutting-edge technologies,accomplishments have been made in developing smart farming systems that facilitate real-time recording of environmental parameters and automatic regulation of equipment,which helps the establishment of growth model for specific mushroom species.Computational Fluid Dynamics(CFD)modelling has been adopted by researchers to investigate indoor airflow patterns and assess the distribution of critical environmental parameters.Studies have been conducted to modify the design of mushroom facility to improve the performance in structural stability,ventilation efficiency,and internal environmental condition.However,some existing problems still need further investigations,such as the lack of design guidelines,energy-saving strategies,and Artificial Intelligent(AI)quality control.Therefore,this overview was expected to provide constructive insights for future studies in addition to references of previous studies.
文摘利用接收信号强度指示(RSSI--Received Signal Strength Indicator)定位因为其借助的设备较少,实现方法简单而被广泛应用;在简述利用接收信号强度指示(RSSI)定位原理的基础上,以生活实际中经常用到的蓝牙为例研究两个蓝牙设备之间的距离与接收信号强度指示之间的关系;并在三种具体环境中建立了相应的关系曲线图,虽然并没有给出具体的解析表达式,但仍然能在一定程度上反应设备间距离与RSSI的关系,并为进一步的研究打下了坚实的基础;得出了在空旷环境比室内以及楼道环境下信号传播效果要好,而且三种环境下信号强度都随着距离的增加而减小,在有障碍物的情况下比没有障碍物衰减更大。
