Design And Implementation Of Remote Automatic Monitoring And Management Center For Crop Growth

Remote monitoring of crop growth has pivotal position in agricultural production,relying on artificial monitoring way is gradually replaced by way of information technology.This paper introduces the important part of remote monitoring system for crop growth--Management Center.A kind of the remote automatic monitoring and management center for crop growth.It is made up of OneNET iot platform,two phase stepper motor,4G wireless camera,cloud deck.The center mainly solves the problems of complicated wiring,small monitoring range,short monitoring distance and subjective difference.Realize Multiple sites' image acquisition and management in agricultural production,each site shows crop growth status.Accumulation and long-term preservation of crop image data provide support to related staff for follow-up study.The main contents of this paper:(1)For the remote automatic monitoring and management center for crop growth,it is combined with functional and nonfunctional requirements analysis and technical implementation requirements,planning the overall implementation scheme.(2)Design and implementation of stepper motor control module based on Internet of things.In order to satisfy close and the different point of view of on crop wireless remote monitoring,the system adopts two phase stepper motor to control the distance between the camera and crop.System use WEB API of OneNET internet platform,use HTTP protocol to acquire and push data for remote control Stepper motor.In order to facilitate the management of the operation,add the camera position display function,the camera position information can be obtained.(3)Design and implementation of 4G wireless network camera control module.In the aspect of image acquisition,by using 4G wireless network and server connected to remote camera,Use the 4G wireless network camera software development kit and the research of the former module can realize real-time screenshots and timing camera.And will be sent to the image management center,it will stitch the image.In the image management,SQL Server 2008,MFC,multithreading are used for realizing the image database management and the function of the large screen looping.(4)The system install and test.The system is installed in the field,joint debugging and control variable for testing.Results show: Network latency at different time and different locations,the average delay time indoors is 2.5 seconds,the average delay time outdoors is less than 2 seconds.Network delay at the same time and different place,the relative peak in the network will only increase the delay time of 1 to 2 seconds.Confirm that the system will achieve the best results in the nonpeak of network and outdoor.By contrasting the results of the photo that was taken in light strong,weak,dark,confirm that the system can adapt to different environment and get effective image.