In order to establish a sound agricultural water price formation mechanism, promote agricultural water conservation and sustainable agricultural development. Promote comprehensive reform of agricultural water prices throughout the country, and gradually establish a total control and quota management system for agricultural irrigation water. Mainly install intelligent irrigation control cabinets for motorized wells in well irrigation areas, establish water consumption modes for farmers in various regions to purchase water through IC cards, purchase water through APP clients, swipe cards for irrigation , scan QR codes for irrigation, and install metering facilities.
In order to achieve a unified and comprehensive management of water use data for metering facilities, it is urgent to establish a data platform software based on the Internet of Things technology to receive data collected by field equipment and establish a village-level water use account to support the big data of agricultural irrigation in Tianjin. Collecting irrigation water consumption data and integrating information such as farm household plots, planting structure, and village-level water ledgers can provide a data basis for agricultural water price setting, farm households and administrative district water rights allocation, and provide a platform for farmers to carry out water rights transactions. Realize the full implementation of total agricultural water use control and quota management, and establish a tiered water price system, water-saving incentives and precise subsidy systems.
1. Overall function diagram
1. The entire platform includes mobile APP portal and back-end management system, for water rights allocation, water price management, water monitoring, water use warning, motorized well location viewing, software and hardware combination, report management, area management, user management, role management and other modules Functions are being built. Ensure the intelligent control of water-driven wells, realize the communication protocol between the software platform and hardware facilities, and achieve the software platform to fully control the opening and closing of the hardware equipment of the motor-driven wells, the monitoring of water use, and the transmission of water flow data. Through the mobile phone APP portal, farmers can control the opening and closing of motorized well equipment, check historical water consumption records, water consumption, and realize full autonomy and intelligentization of farmers' agricultural irrigation under the condition of water consumption allocated by disposable water rights. control.
2. System users are divided into three roles: system super administrator, water resource manager, and farmer.
Three, intelligent irrigation controller
Recommended solution: FCU1101 embedded control unit
This product is used in farmland water conservancy facilities, the working environment is outdoors, and it must meet the needs of the national market, so the controller requires the work to reach industrial grade ( -40℃~+70℃), that is, the controller must meet the industrial grade standard. Feiling embedded Freescale industrial-grade processor i.MX6UL products meet product requirements based on performance.
This product not only meets the current motorized well control requirements, but also reserves upgrade space for the construction of water conservancy big data platforms such as pump room control. Therefore, in addition to the commonly used wired interfaces, a zigbee, a Bluetooth, a 3G&4G, and a Wifi wireless network card have been added to meet the needs of business expansion. The overall plan is shown below
Product recommendation reason:
■One LVDS/parallel port, used for external large screen, to meet the needs of external digital signage in the future. And can expand the printer output ( used for an external card reader, for users to read and write electricity purchase data ).
■ RS485 is used for external metering equipment with 485 interface output such as water meters and electric meters, and meter equipment such as PH value detection.
■One CANBUS interface is used for external electrical protection and other equipment, and supports CAN bus instrument expansion.
■IO includes 4 DI and DO interfaces, which can meet the control needs of a small number of devices without external IO expansion modules.
■ Support 1 SD card storage expansion for key data backup.
■ Support 1 OTG interface, support USB protocol external device, and can also be upgraded through OTG system.
■One industrial and Ethernet interface , used to support Ethernet connection to the Internet.
■One 3G&4G wireless network card, which supports mobile 3G and 4G without network access, and can be upgraded to NB-IOT to meet the needs of future Internet + agricultural water conservancy technology reforms.
■WiFi wireless communication, can access the Internet under the condition of wifi coverage.
■Zigbee wireless self-organizing network communication has good stability and confidentiality. The characteristics of its self-healing network can be used to expand the data of soil moisture sensors, flow meters, weather stations and other data.
■ Bluetooth communication, Bluetooth 4.0 and above support the ibeacon function, which can be used for personnel