Intelligent metering terminal for agricultural water
A measurement terminal, agricultural technology, applied in the direction of measuring devices, measuring electrical variables, measuring flow/mass flow, etc., can solve the problem that the relationship between the measured value and the estimated value is difficult to determine, easily affected by harsh environments, and not generally applicable. problems, such as low equipment price, universal applicability, and labor cost reduction
Pending Publication Date: 2020-06-05
苏州倍加福电气自动化有限公司
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Problems solved by technology
The above agricultural water measurement methods have many disadvantages: they are not universally applicable, each region needs to build different water measuring facilities according to different situations, the engineering is complicated, the equipment is expensive, it is easily affected by harsh environments, and the maintainability is poor. The relationship between the values is difficult to determine, there is a certain error
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Embodiment 1
[0030] The main control chip adopts STM32F103 series single-chip microcomputer, which has the following characteristics:
[0031]1. Kernel: STM32 single-chip microcomputer adopts 32-bit Cortex-M3 microprocessor, its operating frequency can reach up to 72MHz, and it has its own single-cycle multiplication and internal division. 2. Clock, reset and power supply: MCU is powered by 2.0V-3.6V DC power supply, and its IO drive voltage is consistent with the working voltage. It has internal power-on and power-off reset functions, and an external 32.768kHz clock is required. The crystal oscillator and 8MHz crystal oscillator make the system work normally. 3. Low power consumption: STM32 MCU has three power consumption modes of sleep, stop and standby, and can work in low power consumption mode at a specific time to increase the working time. 4. Rich IO functions: STM32 has two programming methods, SWD and JTAG, which can download programs independently; at the same time, it has 12 DM...
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The invention discloses an intelligent metering terminal for agricultural water. Aiming at the metering terminal scheme, a current and voltage sensor is used for collecting electric power parameters.Calculation of electric quantity is achieved through the electric energy metering chip; the temperature and humidity sensor is used for collecting irrigation station environment information; the STM32single-chip microcomputer is used for converting the relation between the electric quantity and the water quantity and packaging data, and the RS485 interface module and the 4G module are used for achieving real-time receiving and sending of the data. According to the invention, the design of the agricultural water intelligent metering terminal is completed, and the functions of real-time acquisition of agricultural irrigation station information, intelligent processing of data and remote wireless transmission are realized through hardware circuit design. The invention has the advantages of universal applicability, low equipment price, no environmental influence, good maintainability, accurate measurement value, convenience in use and intelligent metering, and the labor cost is reduced.
Description
technical field [0001] The present invention relates to a water metering terminal, in particular to a method that collects parameters such as current and voltage of a water pump motor, temperature, and humidity, and transmits data to an electric energy metering module and a main control chip, and displays real-time power consumption, An intelligent metering terminal for agricultural water supply and operating status. Background technique [0002] At present, the agricultural water measurement methods mainly include the use of hydraulic structures to measure water, the use of special water measuring equipment such as weirs and water measuring tanks to measure flow, the use of water scales to measure water, and the use of instruments for water measurement, such as ultrasonic flowmeters , electromagnetic flowmeter, etc., and the indirect estimation method is water quota calculation, electric degree method, time method, fuel consumption method, etc. The above agricultural water...
Claims
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IPC IPC(8): G01R21/06G01R22/06G01F1/00G01D21/02G08C17/02
CPCG01D21/02G01F1/00G01R21/06G01R22/06G08C17/02
Inventor 李威侯荣奇
Owner 苏州倍加福电气自动化有限公司