Development of Control System for Automatic Transfer Device for Mobile Sprinkling Irrigation Machine

Modern agriculture requires that agricultural production can achieve mechanization，scale，automation and intelligence.Facility agriculture，as a high-end agriculture in modern agriculture，has a leading role in the development and application of technology and equipment.Water-saving irrigation is a key technology in facility agriculture，and it is also one of the important technologies that the country has been advocating.Sprinkler irrigation machine is used to irrigate plants regularly and quantitatively，requiring the least amount of water to irrigate larger plants as much as possible.Traditional sprinkler irrigation machine is not highly automated，and can′t realize automatic transfer between spans with manual assistance and can′t selectively irrigate.In order to improve the automation of sprinkler irrigation machine in greenhouse，reduced labor cost and improve work efficiency，an automatic transfer sprinkler irrigation machine was developed by summarizing the structure and characteristics of foreign automatic sprinkler irrigation machine.The sprinkler irrigation system introduced RFID radio frequency module，which could automatically identify span tags by radio frequency signals，and quickly read the data in the tags to identify different span and initial positioning.The main machine of sprinkler irrigation machine adopted transfer device to transfer automatically across lines.In order to prevent interference from abandoning proximity switch and photoelectric switch，Hall switch was used as signal detection and judgment，and Siemens 200CUP226 was used as main controller.By inputting parameters such as the number of sprinkler irrigation and the time of sprinkler irrigation on the touch screen，the machine could automatically perform the task of sprinkler irrigation，while the use of high-speed counter saved the time in the transfer process.The storage unit stored the number and time records of sprinkler irrigation，which facilitated the later data query and digital conversion of experience.