Real-time online analyzer for measuring water content in greenhouse soil

Abstract

The invention discloses a real-time online analyzer for measuring water content in greenhouse soil, which comprises a microprocessor circuit and a power supply circuit for supplying power to all electrical units, wherein the input end of the microprocessor circuit is connected with a parameter input circuit and a signal conditioning circuit, the input end of the signal conditioning circuit is connected with a plurality of sensors, the signal conditioning circuit is used for performing amplification, filtering and A / D (analog / digital) conversion processing on signals of the water content in the greenhouse oil, which are sampled by the sensors and then outputting the signals to the microprocessor circuit, the microprocessor circuit is used for performing analysis and calculation on the signals after being processed by the signal conditioning circuit and outputting corresponding control signals to a liquid crystal display circuit, an indicating lamp, a sound horn alarm circuit and a communication circuit, which are connected at the output end of the microprocessor circuit, and the communication circuit is used for receiving information after processing by the microprocessor circuit and transmitting the information to an online analysis system of an upper computer, which is connected at the output end of the communication circuit and used for performing real-time saving and display on the information. The real-time online analyzer disclosed by the invention has the advantages of simple structure, reasonable design, convenience in use, high degree of automation, high precision, low cost and strong applicability.

Description

technical field [0001] The invention belongs to the technical field of greenhouse soil moisture monitoring, in particular to a real-time on-line analyzer for measuring greenhouse soil moisture. Background technique [0002] With the increase of population and the development of economy, water resource has become a scarce resource in the world. At present, the shortage of water resource is becoming more and more serious, which has attracted the attention of all countries in the world. Moreover, the status and utilization level of water resources have become an important indicator to evaluate whether a country or a region can sustain economic development. As the largest user of water resources, agricultural water use, efficient water use has become the focus of attention in the world today. [0003] Soil moisture refers to the soil moisture status in the active layer of the main root system of crops, which is an important basis for agricultural drought resistance and rational...

AI Technical Summary

Problems solved by technology

The traditional manual measurement method is time-consuming and labor-intensive, the measurement results still need to be considered, and the factors of human interference are relatively large

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