Technolog y Innovation and Application 2022 20 211188 1 1 1 1 1 DHT11 AGCP AGCP AGCP TP277 A 2095 2945 2022 20 0029 04 Abstract At present the communication protocol of Agricultural Internet of Things is not unified In order to better organize and transmit agricultural information an agricultural Internet based on AGCP is proposed through the Internet of Things communication protocol Based on AGCP protocol and Internet of Things architecture a greenhouse monitoring system based on Internet of Things architecture is designed focusing on the software and hardware of sensor coordinator and terminal information acquisition equipment The equipment temperature module control module lighting module and irrigation module are designed in detail The results show that the system can monitor and control the temperature humidity carbon dioxide and humidity of greenhouse soil The effectiveness of AGCP protocol and the feasibility of the system will be tested on the Agricultural Internet Keywords greenhouse Internet of Things automatic monitoring system design 202112804015Y 2000 D OI 10 19981 j CN23 1581 G3 2022 20 006 29