Handheld biomass measuring device and method

Abstract

The invention discloses a handheld biomass measuring device, which comprises a horizontal push rod, a pressure sensor, a vertical connecting rod, a crossbeam, an acquisition module and two suspension straps. The pressure sensor is arranged between the horizontal push rod and the vertical connecting rod and used for acquiring the strength of resilience force when a crop deforms; the tail end of the crossbeam is connected with the upper end of the vertical connecting rod so that a user can hold the handheld biomass measuring device with a hand; one of the two suspension straps is hung on the neck of the user, and the other suspension strap is tied in the waist of the user, so that the horizontal push rod is kept horizontally; and the acquisition module is placed on the crossbeam and connected with the pressure sensor, a crop biomass prediction model is embedded into the acquisition module, and biomass is measured according to voltage signals of the crop resilience force acquired by the pressure sensor. The handheld biomass measuring device has the advantages of portability, quick measurement, zero damage and the like, and is particularly applicable to detecting biomass of small and medium groups of crops in small land parcels during field breeding, and measurement results are accurate and reliable.

Description

technical field [0001] The invention relates to the measurement of crop biomass, in particular to a handheld biomass measurement device and method. Background technique [0002] In the field of agricultural science, in the observation of agronomic parameters of crops in the field, it is often necessary to perform certain treatments on crops, and biomass is an indicator reflecting the growth status of crops. Biomass refers to the weight of living organic matter per unit area at a certain moment. In the narrow sense, biomass only refers to weight, which can be fresh weight or dry weight. Crop biomass includes the stems, leaves, flowers, fruit seeds of the above-ground parts, and the roots or rhizomes of the underground parts. The larger the biomass, the higher the yield. Therefore, the rapid and non-destructive biomass measurement is of great significance for screening germplasm resources. [0003] According to the conventional method, the biomass of crops is measured by dig...

AI Technical Summary

Problems solved by technology

The invention adopts a guide rail device. Although it adopts a portable design, at least two people are needed to carry the guide rail. It is time-consuming to install and adjust the guide rail during field operations.

In order to avoid stepping on and damaging the crops, it is necessary to lift the instrument from a position above the height of the crops (for wheat, at least 80cm), which increases the difficulty of handling

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