Multipoint soil moisture sensor and method utilizing same to measure soil moisture

Abstract

The invention discloses a multipoint soil moisture sensor and a method utilizing the same to measure soil moisture. The sensor comprises a plurality of sensor nodes, a node selecting module, a communication module and a controller, wherein the sensor nodes are used for measuring water moisture of different positions of soil, the node selecting module which is optionally connected with the sensor nodes is used for switching on and off of the sensor nodes, the communication module is used for waking up the controller to select the sensor nodes according to commands of users and then feeding measured data of the sensor nodes back to the users, the controller which is connected with the node selecting module and the communication module is used for acquiring and processing frequency and controlling communication between the communication module and the users.

Description

technical field [0001] The invention relates to the technical field of soil moisture measurement, in particular to a multi-point soil moisture sensor for measuring soil moisture by using the dielectric constant of soil and a method for measuring soil moisture by using the same. Background technique [0002] With the improvement of agricultural modernization and the shortage of water resources, higher requirements are put forward for the growth environment of crops. It is necessary to ensure the water demand of crops while not wasting water resources. This requires the development of suitable products for different crops. The agricultural intelligent irrigation control system is needed, but the sensor with high precision, high stability and high reliability and real-time measurement of soil moisture is the guarantee for the realization of the agricultural intelligent irrigation control system. At present, the most popular soil moisture sensors are mainly multi-needle types. H...

AI Technical Summary

Problems solved by technology

At present, the most popular soil moisture sensors are mainly multi-needle types, but this type of sensor has brought difficulties to measure soil moisture due to its own limitations

Although the multi-needle soil moisture sensor can measure the soil moisture content in real time, if it is buried in the soil for a long time, its probes are easy to corrode, and the measurement accuracy will be significantly reduced; Soil moisture sensors for point measurement will bring great difficulties to the layout of sensors; moreover, such sensors generally work for a long time, although the power consumption of a single sensor is not large, multiple sensors will consume a lot of energy , not conducive to solar powered occasions

Images