Authors: Beckmann, J.W. Von And N. Ross Bulley
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Published in: CBE Journal » CBE Journal Volume 15 (1973)

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Description: There are many variables in the design of a greenhouse that affect plant growth and development, such as building orientation, design, shape, and construction materials (1, 8). The effects of these variables on the environment in a greenhouse are readily measured at a single location and can be used for the control of the environment within preset limits. However, the conditions at one location are not truly representative of the conditions encountered by the plants throughout the house. In evaluating any new concepts in greenhouse design, or structural material, it is necessary to theoretically analyze the possible effects of the change as well as to support the calculations with data collected from prototypes and finished structures (3, 7, 9, 11, 12, 14). Present methods for measuring and recording environmental conditions are either very time-consuming or require many costly sensors. For these reasons it is believed that many publications report only a minimum amount of environmental data, such as inlet and outlet air temperatures and humidities, with little information about light distribution (9, 12). Some papers report several light intensities and little about temperature and humidity variations (4) or an author assumes that measurements at a single location can adequately represent the overall conditions. Usually, the control of the greenhouse environment is based on this assumption (1, 2, 5, 6, 1- 3).

Keywords: equipment development for automatic collection of greenhouse environmental data using moving sensors
Citation: Beckmann, J.W. von and N. Ross Bulley 1973. EQUIPMENT DEVELOPMENT FOR AUTOMATIC COLLECTION OF GREENHOUSE ENVIRONMENTAL DATA USING MOVING SENSORS. Canadian Agricultural Engineering 15(2):99-102.
Volume: 15
Issue: 2
Pages 99 - 102
Date: 1973
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Coverage: Canada
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