Diameter measurement device for plant stalk

Abstract

The invention relates to the field of agricultural engineering, in particular to a diameter measurement device for a plant stalk. The measurement device comprises a measurement bracket, wherein two measurement probes are assembled on the measurement bracket, at least one measurement probe is a movable probe and a measurement position is formed between the two measurement probes. A drive device is connected on the movable probe in a transmission mode. A controller for driving the movable probe to move along the direction away from the plant stalk and setting displacement is connected on the drive device in a controlled mode. A pressure sensor is fixedly assembled on the movable probe and is used for providing working signals to the controller by sensing the pressure of the plant stalk to be measured. Displacement sensors of measuring the distance between the two measurement probes are further fixedly assembled on the measurement probes. Displayers are connected on the displacement sensors through analog-digital (A / D) conversion devices. In the process of measuring by the measurement device, the measurement probes just need to slightly touch the plant stalk to be measured, and therefore the plant stalk to be measured can not be damaged, and meanwhile measurement precision is guaranteed.

Description

technical field [0001] The invention relates to the field of agricultural engineering, in particular to a diameter measuring device for plant stems. Background technique [0002] In agricultural production, it is necessary to control irrigation, fertilization, pest control and other measures according to the growth status of plants. Traditional agricultural production mainly relies on human eye observation, and judges the growth status of plants based on the experience of producers. The accuracy of the data obtained in this way will vary from person to person and is inaccurate, which often leads to waste of water and fertilizer or untimely irrigation and fertilization. , ultimately affecting crop yields. In modern agriculture, various sensors are used to perceive the growth status of plants. Since the growth status of plants cannot be measured directly, the growth status of plants is monitored by indirectly measuring indicators that can characterize these changes. As an im...

AI Technical Summary

Problems solved by technology

Among the three, the accuracy of the vernier caliper measurement is not high, and it cannot be automatically monitored; when the contact linear displacement sensor is measured, it is necessary to apply an appropriate pre-tightening force to the plant, and the existence of this pre-tightening force affects the normal growth of the plant; computer vision image processing The measurement results of the technology are inaccurate and have the disadvantage of high cost

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