A measurement method and device for measuring the height of garden trees using drones

Abstract

The invention discloses a measuring device for measuring the height of trees in a garden by using an unmanned aerial vehicle. The present invention adopts an unmanned aerial vehicle measuring device with an image recognition algorithm added by an aerial camera and a recognizer. When in use, the recognition device and the internal program algorithm of the recognizer are used to quickly obtain the difference between the tree structure and the color of the external space. , after identification, the highest position in the image is obtained, and after being suspended at this position, the vertical height information of the tree is obtained by using the range finder combined with the information obtained by the height identification module inside the UAV, which effectively solves the existing problem. When measuring the height of trees, the measurement results are inaccurate by using tree shadow comparison, head-up auxiliary measurement and triangulation method, etc. The problem is that the structure is simple, the adaptability is high, and the measurement process is simple and fast.

Description

technical field [0001] The invention relates to the field of height measurement of garden trees, in particular to a measuring method and device for measuring the height of garden trees by using an unmanned aerial vehicle. Background technique [0002] Garden trees refer to woody plants planted and applied in gardens, and can also be said to be woody plants suitable for planting and applying in urban garden green spaces and scenic spots, including various trees, shrubs and vines, many garden trees It is an ornamental tree with beautiful flowers, fruits, leaves, branches or tree shapes. Garden trees also include those tree species that are not known for their beauty, but can play a role in sanitation protection and environmental improvement in the greening of cities and industrial and mining areas and the construction of scenic spots. Therefore The scope of garden trees is wider than that of ornamental trees. In the maintenance process of garden trees, the measurement record o...

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Problems solved by technology

[0002] Garden trees refer to woody plants planted and applied in gardens, and can also be said to be woody plants suitable for planting and applying in urban garden green spaces and scenic spots, including various trees, shrubs and vines, many garden trees It is an ornamental tree with beautiful flowers, fruits, leaves, branches or tree shapes. Garden trees also include those tree species that are not known for their beauty, but can play a role in sanitation protection and environmental improvement in the greening of cities and industrial and mining areas and the construction of scenic spots. Therefore The scope of garden trees is wider than that of ornamental trees. In the maintenance process of garden trees, the measurement record of tree height is important information in the future maintenance process of gardens. However, the existing tree measurement requires the cooperation of multiple people. The method of measuring or estimating measurement by shadow contrast, head-up auxiliary measurement and triangulation method is cumbersome. In view of the above problems, a measurement method and device for measuring the height of garden trees using drones are proposed.

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