Portable arbor height and relative coordinate measuring device

Abstract

The invention relates to a portable arbor height and relative coordinate measuring device. The portable arbor height and relative coordinate measuring device comprises a detection module, a data processing module, an ultrasonic wave distance measuring module, a memory module, a Bluetooth module, a display and keyboard input module, a GPS positioning module, and a power supply module. The output port of the ultrasonic wave distance measuring module is connected with the first input port of the data processing module, and the output port of the GPS positioning module is connected with the second input port of the data processing module, and the memory module is connected with the data processing module and the communication module. The data processing module comprises a central processor and an A / D converter, and the input port of the A / D converter is connected with the detection module, and the output port is connected with the central processor. The Bluetooth module is connected with the central processor. The invention discloses a novel tree height calculating method, and the measurement of the horizontal distance between the observer and the arbor is not required, and in addition, the carrying is convenient, and the relative coordinate of the arbor can be acquired.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to a portable measuring instrument for tree height and its relative coordinates. Background technique [0002] The determination of tree height and its coordinates is the key and difficult point in forestry production and forest resources investigation, and it is very important in the study of biomass measurement. Among them, tree height is an important basis for evaluating site quality and tree growth status and dividing forest layers. Its relative coordinates are also an indispensable part of ecological investigation, and it is the necessary basic data for spatial ecology. [0003] At this stage, the main methods of tree height measurement at home and abroad include: tree height measurement by mechanical instruments, tree height measurement by theodolite, total station, laser instrument tree height measurement, and tree height measurement by photographic technology. Measuring tree heigh...

AI Technical Summary

Problems solved by technology

The common feature of these three altimetry instruments is that they can only accurately measure the height of objects on flat ground or on the ground with a small slope, because such altimetry instruments generally use the triangulation method to measure tree heights, and this method is often used in the measurement process. First measure the horizontal distance between the observer and the trees, and most of the forest measurement operations are carried out on rugged mountain roads or slopes. After measuring the slope distance, convert it into a horizontal distance, and then calculate the tree height according to the formula value, the conversion work is cumbersome and the accuracy is not high, so the measured tree height value is not very accurate

[0006]And this kind of altimetry instrument can only realize the measurement of the current tree height, but cannot measure its relative coordinates relative to the reference point

However, in forestry survey work, due to the need for tree maintenance, managers often need to know the location information of trees, so these altimetry instruments do not meet the needs of contemporary forestry survey work

[0007] From the above, it can be seen that in the existing portable altimeters, there is no measurement that can not only accurately measure the height of trees, but also measure the relative coordinates of trees. High instrument, if such an instrument can be provided, it will be of great practical value in forestry work

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