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Sharing Video Images on the Internet Using Java: An Application to Controlled Environment
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org
Citation: Pp. 114-118 in Proceedings of the World Congress of Computers in Agriculture and Natural Resources (13-15, March 2002, Iguacu Falls, Brazil) 701P0301.(doi:10.13031/2013.8320)
Authors: A. A. Lopes, S. M. Paz, C. E. Cugnasca and A. M. Saraiva
Keywords: controlled environments, Internet, Java, video
On controlled agricultural environments, such as greenhouses or livestock barns,
early detection of diseases, pests, or any other harmful or irregular condition is very
important because they involve high value products and high production costs.
Usually these facilities are controlled with some kind of local equipment with human
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Human experts often use visual information of animal and plants for diagnosis even
before any alarm condition is detected by means of sensors and instruments. As it is
not possible to have an expert in situ all the time it would be interesting to provide
remote access to visual information of the facility in real time whenever this is needed.
Nowadays the Internet is an easy and cheap way of accessing information in text,
audio and video, although some limitations still apply depending on the overall
performance of the network. Video cameras can easily be installed inside those
agricultural facilities to provide real time information to the manager, the owner or a
The Java technology is an interesting choice as a tool for designing the solution. Java
software can be deployed as an applet, which is platform-independent. Also, the
applet can have security features (like user authentication), and can be extended
because its functions are developed following an object-oriented model. That way, it
can aggregate new functions like sensor data from a control system.
This paper presents a system in which a Java applet requests images to a server. The
images are generated by video camera capture software. The applet has other
functions that are not focused in this paper.