3D intelligent supplement light illumination using hybrid sunlight and LED for greenhouse plants

Tang, Yuanhe; Jia, Min; Mei, Yifeng; Yu, Yang; Zhang, Jun; Tang, Rongjun; Song, Kai

doi:10.1016/j.ijleo.2019.02.002

Cited by 14 publications

(15 citation statements)

References 13 publications

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“…A variety of systems such as tubular daylight guidance systems and optical fiber daylighting are available to channel light indoors . Notably, OFD systems for indoor farming have been explored in the past 5 years. − OFD systems comprise of a sunlight collector at the input end, diffuser at the output and primarily uses flexible optical fibers to channel sunlight indoors. Optical fibers are made up of a transparent core such as silica, glass, or polymer surrounded by a layer of cladding material with a lower refractive index than the core material.…”

Section: Light Redirectionmentioning

confidence: 99%

“…Tang et al demonstrated an active-tracking system designed for indoor farms which consisted of 40 cm diameter Fresnel lens concentrator and 3 m long optical fiber cable. The system was reportedly able to achieve up to an illumination of 33 000 lx (or equivalent of ∼759 μmol/(m 2 /s)) . Passive solar collectors which are lower in cost and have zero energy needs are also being developed.…”

Section: Light Redirectionmentioning

confidence: 99%

See 1 more Smart Citation

Shaping and Tuning Lighting Conditions in Controlled Environment Agriculture: A Review

Neo

Ong

Lee

et al. 2022

ACS Agric. Sci. Technol.

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Light is one of the most important ingredients for healthy plant growth. It is also responsible for triggering a number of plant physiological responses. For centuries, humans have relied on sunlight and good climate for ideal crop growth. As such, extensive research has been carried out to study how to mimic sunlight or even better. Armed with modern technology, farmers can now gain greater control over light management in controlled environment agriculture (CEA). Growing plants in CEA requires delivering the required photons to the plant via artificial means: by redirecting sunlight indoors, by employing artificial lights, or by using a hybrid lighting system. Using artificial lights, the required energy for photosynthesis can be provided regardless of sunlight availability. This Review describes and assesses various artificial grow light technologies, solar spectral shaping and redirection, and hybrid lighting technologies to generate high and consistent crop yield in CEA. In addition, this Review also captures the recent advances in the use of color conversion films in manipulating light spectrum to cater to the growth of plants.

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Section: Light Redirectionmentioning

confidence: 99%

Section: Light Redirectionmentioning

confidence: 99%

Shaping and Tuning Lighting Conditions in Controlled Environment Agriculture: A Review

Neo

Ong

Lee

et al. 2022

ACS Agric. Sci. Technol.

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“…Furthermore, another important step consistent with the research is the design of an intelligent hybrid system for greenhouse plants by 3D supplementary lighting, which can be auto switched to sunlight or LED depending on weather conditions. This last has shown the ability to accelerate vegetables and fruits' growth rate (Tang et al 2019).…”

Section: Advanced Lighting Techniquesmentioning

confidence: 99%

Smart greenhouses as the path towards precision agriculture in the food-energy and water nexus: case study of Qatar

Karanisa

Achour²,

Ouammi

et al. 2022

Environ Syst Decis

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Greenhouse farming is essential in increasing domestic crop production in countries with limited resources and a harsh climate like Qatar. Smart greenhouse development is even more important to overcome these limitations and achieve high levels of food security. While the main aim of greenhouses is to offer an appropriate environment for high-yield production while protecting crops from adverse climate conditions, smart greenhouses provide precise regulation and control of the microclimate variables by utilizing the latest control techniques, advanced metering and communication infrastructures, and smart management systems thus providing the optimal environment for crop development. However, due to the development of information technology, greenhouses are undergoing a big transformation. In fact, the new generation of greenhouses has gone from simple constructions to sophisticated factories that drive agricultural production at the minimum possible cost. The main objective of this paper is to present a comprehensive understanding framework of the actual greenhouse development in Qatar, so as to be able to support the transition to sustainable precision agriculture. Qatar’s greenhouse market is a dynamic sector, and it is expected to mark double-digit growth by 2025. Thus, this study may offer effective supporting information to decision and policy makers, professionals, and end-users in introducing new technologies and taking advantage of monitoring techniques, artificial intelligence, and communication infrastructure in the agriculture sector by adopting smart greenhouses, consequently enhancing the Food-Energy-Water Nexus resilience and sustainable development. Furthermore, an analysis of the actual agriculture situation in Qatar is provided by examining its potential development regarding the existing drivers and barriers. Finally, the study presents the policy measures already implemented in Qatar and analyses the future development of the local greenhouse sector in terms of sustainability and resource-saving perspective and its penetration into Qatar’s economy.

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“…As an important parameter of plant growth, light intensity is one of the important factors that affects plant growth and development, morphological establishment, and accumulation of functional chemical substances [6]. Y. Tang et al designed a system for greenhouse plants using 3D supplementary lighting, which can be auto-switched to sunlight or LED for different kinds of weather conditions [14]. The system for greenhouse plants used intelligent supplementary illumination, which can supply light to every leaf with a hybrid sunlight-LED system based on the Internet of Things.…”

Section: Illuminance and Photometric Exposurementioning

confidence: 99%

Design of an Artificial Intelligence of Things Based Indoor Planting Model for Mentha Spicata

Liu

Wang

2022

Processes

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In recent years, many large-scale plantings have become refined small-scale or home plantings. The rapid progress of agriculture technologies and information techniques enables people to control the growth of agricultural products well. Hence, this study proposes an Artificial Intelligence of Things (AIoT) based Plant Pot Design for planting edible mint in an office setting, which is called APPD. APPD is composed of intelligent gardens and a cloud-based service platform. An intelligent garden is deployed an Arduino with multiple sensors to monitor and control plant pots of the edible mint, Mentha spicata. The cloud-based service platform provides a Case-Based Reasoning (CBR) inference engine with a database for adjustment influence factors. This study discusses eight growing statuses of Mentha spicata with different illumination, photometric exposure, and moisture content, designed for an office environment. Evaluation results indicate that Mentha spicata with 16 h red–blue lighting and 50% moisture content makes a maximum 5% mint extract of the total weight of the mint leaves. Finally, APPD can be a reference model for researchers and engineers.

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3D intelligent supplement light illumination using hybrid sunlight and LED for greenhouse plants

Cited by 14 publications

References 13 publications

Shaping and Tuning Lighting Conditions in Controlled Environment Agriculture: A Review

Shaping and Tuning Lighting Conditions in Controlled Environment Agriculture: A Review

Smart greenhouses as the path towards precision agriculture in the food-energy and water nexus: case study of Qatar

Design of an Artificial Intelligence of Things Based Indoor Planting Model for Mentha Spicata

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