Large-area multi-field-piece automatic water-saving irrigation three-level control system and use method thereof

Abstract

The invention relates to a large-area multi-field-piece automatic water-saving irrigation three-level control system and a use method thereof. The three-level control system comprises a remote monitoring platform, at least one monitoring station and a plurality of monitoring terminals; the remote monitoring platform and the monitoring stations conduct data communication in a GPRS mode, and the monitoring stations and the monitoring terminals conduct data communication through a ZigBee network. Temperature and humidity data of field pieces is collected through temperature and humidity sensors of the monitoring terminals and compared with temperature and humidity threshold values pre-stored in ZigBee modules of the monitoring terminals; when conditions are met, an irrigation request is sent to the monitoring stations, and meanwhile management personnel can modify the temperature and humidity threshold values through the remote monitoring platform and issue the modified temperature and humidity threshold values to the monitoring stations. The three-level control system can achieve control over automatic water-saving irrigation of multiple field pieces in a large area, manpower cost is saved, water resources are saved, manual intervention can be carried out, and the purpose of reasonable water-saving irrigation is achieved.

Description

technical field [0001] The invention relates to a three-level control system for automatic water-saving irrigation in large areas and multiple fields and a method for using the same, belonging to the technical field of automatic irrigation. Background technique [0002] The increasing scarcity of freshwater resources and the gradual increase in labor costs have made automatic water-saving irrigation technology an important direction for the development of modern agriculture, forestry, animal husbandry, and sideline water irrigation. At present, how to realize the automatic water-saving irrigation control of large-area and multi-field plots has become a prominent problem to be solved for the large-scale land transfer and cooperative management in my country's agriculture, especially the vast northeast, northwest and other agricultural, forestry, animal husbandry, and sideline bases. [0003] In recent years, some progress has been made in the research of related irrigation co...

AI Technical Summary

Problems solved by technology

[0003] In recent years, some progress has been made in the research of correlation irrigation control technology and method. Among them, Chinese patent document CN102037888A discloses a "distributed network automatic irrigation control system and its irrigation application method". A two-level distributed control system composed of irrigation units. The patent patent "Remote Automatic Irrigation System and Application Method Based on Public Communication Network" with the publication number CN1951170A has constructed a two-level irrigation automation system composed of a central control level and a field control level. However, the lower-level control system in these technical methods only uses a single processor (CPU) to complete tasks such as sensor detection, solenoid valve control, and data communication in the field. There are problems: (1) There are many distributed connections, which makes it difficult to adjust the layout ; (2) The hardware resources of the existing controller are limited and fixed, and it is difficult to expand, so it is not suitable for large-scale fields; (3) As a whole, the system lacks an important link of irrigation water supply regulation and control, and cannot realize constant pressure water supply of water supply pipelines supply

[0004] In addition, when planting multiple fields with different crops in a large area, the existing irrigation technology cannot set different irrigation modes according to different crops, and the application is relatively single

Images