Notice of RetractionDevelopment of Multi-Span Greenhouse Measure and Control System

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

In order to adapt the needs of development of multi-span greenhouse,the monitoring system of greenhouse environment parameters is developed, such as temperature, humidity,carbon dioxide concentrations and soil moisture content.The system uses modular design of the master-slave structure.The measure and control instrument takes a new and dual serial single chip microcomputer STC12C5A60S2 as core,it is the host of parameters gathered,and the slave of upper PC computer. The PC computer software is developed by configuration software,and the MCU software is developed by C51.The system can use single,and can the unify management of multi-span greenhouse by PC,it offers flexible integrated ,reliable operation and very easy in maintenance.