Tree height measuring device

Abstract

The utility model discloses a tree height measuring device which comprises a cross measuring assembly which comprises a vertical rod and a horizontal rod, a hole is formed in the middle of the vertical rod, the horizontal rod is arranged in the hole in a sliding mode, and scales are arranged on the surface of the vertical rod and the surface of the horizontal rod; and the gradienter is arranged on the horizontal rod. The device does not need complex operation, is simple in structure, is convenient to carry, can be easily operated by a common user, and is low in use cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to tree measurement related technical field. More specifically, the utility model relates to a tree height measuring device. BACKGROUND

[0002] In forest resource investigation, landscape design, outdoor sports and many other fields, accurate measurement of tree height is crucial. However, the existing tree height measurement methods and tools have many limitations.

[0003] The traditional Brulai period tree height measuring device is designed based on the principle of triangle and approximate scale value. In forestry production and application, the precision and efficiency are low, and the cumulative error is large and the operation is complicated, which is difficult to meet the precise measurement demand. The height measuring rod has a simple structure, but relies on visual measurement, with large error (significant error in scenes with slope greater than 15° or vegetation obstruction), and the measurement accuracy is greatly discounted in complex terrains such as mountains, valleys, and complex forest structure environments. Laser, microwave, ultrasonic height measuring instrument improves the measurement accuracy to a certain extent, but is restricted by factors such as terrain and canopy density. For example, in mountainous areas, the terrain is undulating and the signal is easily blocked; in forests with high canopy density, the signal is blocked by branches and leaves, resulting in inaccurate measurement results. Moreover, such height measuring instruments are expensive, and the purchase cost is too high for ordinary users and small projects, and they rely on stable power supply, which is not conducive to widespread use in actual investigation work. In addition, using range finders, theodolites and other equipment to measure tree height often requires professional operation skills and complex calculation processes, which ordinary users cannot master.

[0004] Therefore, it is necessary to design a technical solution that can overcome the above-mentioned defects. UTILITY MODEL CONTENT

[0005] An object of the utility model is to provide a tree height measuring device, which does not require complex operation, has a simple structure, is easy to carry, is easy for ordinary users to use, and has low use cost.

[0006] In order to achieve these objects and other advantages of the utility model, according to one aspect of the utility model, a tree height measuring device is provided, comprising: a cross measuring assembly, comprising a vertical rod and a horizontal rod, a hole is formed in the middle of the vertical rod, the horizontal rod is slidingly arranged in the hole, and scales are arranged on the surfaces of the vertical rod and the horizontal rod; a level is arranged on the horizontal rod.

[0007] Further, it further comprises: a support rod, the lower end of the support rod is used for fixing with the ground, a sleeve is arranged at the upper end of the support rod, a plurality of screw holes are formed in the side wall of the sleeve, bolts are arranged in the screw holes, the lower end of the vertical rod is slidingly arranged in the sleeve, and the vertical rod and the sleeve can be fixed by tightening the bolts.

[0008] Further, the bolt end is provided with a knob.

[0009] Further, the axis of the hole is perpendicular to the axis of the vertical rod.

[0010] Further, the cross section of the vertical rod and the horizontal rod is polygonal.

[0011] Further, the upper end of the vertical rod and both ends of the horizontal rod are provided with rubber sleeves.

[0012] The utility model also provides a tree height measuring device, include: cross cross measuring component, it includes vertical rod and horizontal rod, the vertical rod middle part is provided with hole, the axis of hole is perpendicular to the axis of vertical rod, the horizontal rod is arranged in the hole in sliding, vertical rod and horizontal rod surface all are provided with scale, the cross section of vertical rod and horizontal rod is polygonal, level meter, it is arranged on the horizontal rod, support rod, its lower end is used for with ground fixed, the support rod upper end is provided with sleeve, sleeve side wall is provided with a plurality of screw holes, the screw hole is provided with bolt, the vertical rod lower end is arranged in the sleeve in sliding, and can pass through the bolt that is screwed with sleeve fixed vertical rod, the bolt end is provided with knob.

[0013] The utility model at least includes following beneficial effects:

[0014] The utility model discloses a simple cross cross measuring rod cooperates level, and according to the formula calculation, the tree height can be obtained by observing the mark according to the steps, does not need complicated operation, and ordinary user easily gets started. Simple structure, component is light and smart, and the whole body is convenient to carry. Whether is the field forest resource investigation, or city garden tree measurement, can conveniently carry to the measurement site. Compared with the expensive laser, microwave height measuring instrument, greatly reduces the use cost.

[0015] Other advantages, objects and features of the utility model will be partly embodied through the following description, and some will be understood by the person skilled in the art through the research and practice of the utility model. ACCURACY OF DRAWINGS

[0016] Figure 1 It is height measuring device structure schematic drawing for one embodiment of the utility model;

[0017] Figure 2 It is level structure schematic drawing for one embodiment of the utility model;

[0018] Figure 3 It is local enlarged view for one embodiment of the utility model;

[0019] Figure 4 It is support rod and sleeve result schematic drawing for one embodiment of the utility model;

[0020] Figures 5-7 The measuring schematic diagram of the height measurer is shown in the figure, and the observation points are respectively located at the horizontal position, the downhill position and the uphill position. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with the drawings, so that the person skilled in the art can implement according to the description.

[0022] It should be understood that the terms such as "have", "contain" and "include" used in the embodiments of the present application do not exclude the presence or addition of one or more other elements or combinations thereof. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly. When an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or can also have a middle element. When an element is referred to as "connected to" another element, it can be directly connected to another element or can also be indirectly connected to another element through a middle element. The embodiments of the present application involve "first", "second" and the like for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0023] It should be noted that the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the realization of the person skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope claimed by the present application.

[0024] As shown in Figures 1-4 The embodiments of the present application provide a tree height measurer, which comprises:

[0025] The cross measurement assembly is mainly used for measuring and obtaining relevant data in the tree height measurement process. It is specifically composed of a vertical rod 1 and a horizontal rod 2. A hole is formed in the middle position of the vertical rod 1, which provides space for the installation and sliding of the horizontal rod 2. The horizontal rod 2 is slidably arranged in the hole. This sliding arrangement allows the horizontal rod 2 to adjust its position on the vertical rod 1 according to the actual measurement requirements, so as to adapt to different measurement scenarios. In order to facilitate accurate reading of data during measurement, the surfaces of the vertical rod 1 and the horizontal rod 2 are provided with scales. These scales can accurately mark the position of the horizontal rod 2 on the vertical rod 1 and the relevant length data involved in the measurement process, thereby providing basic data for subsequent calculation of tree height based on geometric principles. The cross section of the vertical rod 1 and the horizontal rod 2 can be circular, square, triangular, hexagonal, etc., which is convenient for use. Preferably, a pointer is slidably arranged on the vertical rod 1 to indicate the scale and facilitate reading of length data. Optionally, the sliding range of the horizontal rod 2 is 70%-90% of the full length of the vertical rod 1.

[0026] A level 3 is arranged on the horizontal rod 2. The main function of the level 3 is to ensure that the horizontal rod 2 is in a horizontal state during measurement. Because in the process of measuring tree height using geometric principles, the horizontal state of the horizontal rod 2 is one of the key factors to ensure the accuracy of measurement. Only when the horizontal rod 2 is in a horizontal state, the subsequent calculation based on the data at the observation point and the measurement rod can conform to the corresponding geometric principles, and then an accurate tree height measurement result can be obtained.

[0027] The specific tree height measurement steps include:

[0028] Preparation: The lower end of the support rod 5 is fixed to the ground. According to the height of the observer, the knob at the end of the bolt 7 is rotated to loosen the bolt 7, the height of the vertical rod 1 in the sleeve 6 is adjusted to make the observer comfortable, and after adjustment, the knob is tightened to fix the vertical rod 1. At the same time, the level 3 is observed to ensure that the horizontal rod 2 is in a horizontal state.

[0029] Data measurement: Taking the end of the horizontal rod 2 as an observation point, first aim at the tree top and record the scale value of the intersection point of the horizontal rod 2 and the vertical rod 1 to the intersection point of the observation point and the vertical rod 1. Then aim at the tree root and record the corresponding scale value. At the same time, use a distance measuring tool (such as a tape measure or a laser range finder) to measure the horizontal distance from the observation point to the tree.

[0030] Height calculation: According to the principle of triangle similarity, the scale values and horizontal distance data obtained by the above measurement are used to calculate the height of the tree through the corresponding formula.

[0031] It can be seen that the tree height measuring device has the advantages that the operation is simple, ordinary users only need to read data according to scales and calculate according to geometric principles to obtain the tree height, without complex operation processes and professional knowledge, and passive measurement is realized. Meanwhile, the cross intersection measuring assembly and the level 3 are light in structure, the vertical rod and the supporting rod are designed in a detachable modular manner, transportation is facilitated, and the tree height measuring device is conveniently carried to various measuring sites outdoors, and is suitable for environments such as forests and urban parks. Moreover, the tree height measuring device is low in manufacturing cost, compared with expensive laser and microwave height measuring devices, can save a large amount of cost for users, meets the measuring requirements of ordinary users in outdoor environments, and effectively improves the accuracy and efficiency of tree height measurement.

[0032] In another embodiment, the tree height measuring device further comprises a supporting rod 5 which plays a role of supporting and fixing in the whole tree height measuring device. The lower end of the supporting rod 5 is used for fixing with the ground, and the fixing manner can guarantee the stability of the whole tree height measuring device in the measuring process, avoids shaking of the tree height measuring device due to external factors (such as wind force, uneven ground and the like), and thus affects the accuracy of the measuring result. The upper end of the supporting rod 5 is provided with a sleeve 6, and the main role of the sleeve 6 is to provide an adjustable height mounting space for the vertical rod 1. A plurality of screw holes are formed in the side wall of the sleeve 6, and the screw holes are provided for mounting bolts 7. The bolts 7 are arranged in the screw holes, and the lower end of the vertical rod 1 is arranged in the sleeve 6 in a slidable manner, which enables the vertical rod 1 to move up and down in the sleeve 6, so as to realize height adjustment to adapt to the height requirements of observers of different heights or different measuring scenes (complex scenes such as slope land and wet land). Moreover, when the vertical rod 1 is adjusted to a suitable height, the vertical rod 1 can be fixed with the sleeve 6 by tightening the bolts 7, so as to guarantee the stability of the position of the vertical rod 1 in the measuring process and ensure the accuracy of the measuring data. In use, the supporting rod 5 is unfolded and fixed to the ground, the bolts 7 are locked after the vertical rod 1 is adjusted to the eye level height of the observer.

[0033] In another embodiment, the end of the bolt 7 is provided with a knob. The knob is arranged to facilitate the operation personnel to tighten or loosen the bolt 7. In the actual measuring process, when the height of the vertical rod 1 needs to be adjusted, the operation personnel can directly loosen the bolt 7 by rotating the knob, so that the vertical rod 1 can freely slide in the sleeve 6. When the vertical rod 1 is adjusted to a suitable height, the vertical rod 1 is fixed with the sleeve 6 by tightening the bolt 7 through rotating the knob.

[0034] In another embodiment, the axis of the hole is perpendicular to the axis of the vertical rod 1, which is an important prerequisite for ensuring that the horizontal rod 2 can be in a horizontal state after being installed on the vertical rod 1; only when the axis of the hole is perpendicular to the axis of the vertical rod 1, the horizontal rod 2 installed in the hole can be accurately in a horizontal state, so that the observation point, the horizontal rod 2 and the vertical rod 1 form a measurement relationship conforming to the geometric principle, and then the height of the tree can be accurately measured.

[0035] In another embodiment, the cross section of the vertical rod 1 and the horizontal rod 2 is polygonal; compared with the circular cross section, the polygonal cross section can better prevent the horizontal rod 2 from rotating in the hole (anti-rotation polygonal structure) during the cooperation of the horizontal rod 2 and the vertical rod 1, ensure the stability of the horizontal rod 2 during the measurement, and thus improve the accuracy of the measurement data; and the polygonal cross section is easier to position and align during the manufacturing and installation process, thus reducing the difficulty of manufacturing and installation.

[0036] In another embodiment, the upper end of the vertical rod 1 and both ends of the horizontal rod 2 are provided with a rubber sleeve 4; the surface of the rubber sleeve 4 has a certain friction, so that the operator can hold the height measuring device more stably and not easily slip off when holding the height measuring device, thus improving the safety and stability of the operation.

[0037] The tree height measuring device provided by the embodiment of the application mainly comprises three key parts, namely, a cross intersection measuring assembly, a level 3 and a support rod 5, and can efficiently meet the demand of tree height measurement; the cross intersection measuring assembly is the core of the whole height measuring device and is composed of a vertical rod 1 and a horizontal rod 2, the vertical rod 1 is provided with a hole which is perpendicular to the axis of the vertical rod 1 in the middle part, and the horizontal rod 2 can be flexibly slid in the hole. This design enables the horizontal rod 2 to be adjusted in position on the vertical rod 1 according to the actual measurement scene. Meanwhile, the surfaces of the vertical rod 1 and the horizontal rod 2 are provided with scales, so that the position of the horizontal rod 2 on the vertical rod 1 and the related length information in the measurement process can be clearly marked. Moreover, the cross sections of the two rods are designed in a polygonal shape, which can not only prevent the horizontal rod 2 from rotating in the hole and ensure the stability of the horizontal rod 2 in the measurement process, but also facilitate the positioning and alignment during the manufacturing and installation, and the increased surface friction of the rod body is also convenient for the operator to hold and operate. The level 3 is arranged on the horizontal rod 2 and can monitor and ensure that the horizontal rod 2 is always in a horizontal state in the measurement process. Because only when the horizontal rod 2 is in a horizontal state, the calculation based on the data of the observation point and the measuring rod can meet the geometric principle, so that the accurate tree height measurement result can be obtained. The support rod 5 provides stable support for the height measuring device, the lower end of the support rod 5 is used for being fixed to the ground, so that the whole height measuring device cannot be shaken due to external factors during the measurement, and then the measurement result is affected. The sleeve 6 at the upper end of the support rod 5 is in sliding connection with the lower end of the vertical rod 1, and the screw bolt 7 with a knob in the screw hole in the side wall of the sleeve 6 can easily realize the adjustment and fixation of the height of the vertical rod 1, so as to adapt to observers with different heights and various measurement scenes. In summary, the height measuring device of the embodiment has reasonable structure design, precise component cooperation, simple operation and good stability, can effectively improve the accuracy and efficiency of tree height measurement, and is very suitable for ordinary users to use in outdoor environment.

[0038] The tree height measurement method is demonstrated below with specific embodiments, referring to Figures 5-7 .

[0039] 1. The end of the horizontal rod of the cross intersection measuring rod is taken as an observation point O, and it is ensured that the horizontal rod is horizontal. The vertical rod is vertical, and the intersection position of the vertical rod and the horizontal rod is point b.

[0040] 2. The tree top A point is observed and aligned through the end O of the horizontal rod, the position of the vertical measuring rod a through which the straight line from the O point to the A point passes is recorded, and the length bc from the c point to the b point is recorded.

[0041] 3. The tree root C point is observed and aligned through the end O of the horizontal rod, the position of the vertical measuring rod c through which the straight line from the O point to the C point passes is recorded, and the length bc from the c point to the b point is recorded.

[0042] 4. According to the principle of triangle comparison and equality, the height H of the tree is calculated according to the known height of the measuring rod and the horizontal distance of the observation point.

[0043] 5. Calculate the tree height H using the formula:

[0044] AC:ac=OB:Ob H=AC

[0045] Where AC is the tree height, OB is the horizontal distance between the observer and the tree, and Ob is the horizontal distance from the vertical measuring rod to point O, where point O is the observation point. The horizontal distance OB can be obtained using a measuring tape or a laser rangefinder.

[0046] like Figure 5 As shown, when measuring height on flat ground (with the observation point at a horizontal position), the tree height H = AC = ac * OB / Ob

[0047] When Ob = 1 meter, H = OB * ac. For example, if OB is 15 meters and ac is 1.2 meters, then the tree height H = 15 * 1.2 = 18 meters.

[0048] like Figure 6 As shown, when measuring tree height on a slope (the observation point is located on the downhill side), the tree height H = AC, AC:ac = BO:bO; H = ac*OB / Ob; when bO is 1 meter, H = BO*ac; when bO is 0.5 meters, H = 2BO*ac. For example, when bO is 1 meter, BO is 18 meters, and ac is 0.7, the tree height H = 18 * 0.7 = 12.6 meters.

[0049] like Figure 7 As shown, when measuring tree height on a different slope (the observation point is located on the uphill side), the tree height H = AC, AC:ac = BO:bO; H = ac*OB / Ob. When bO is 1 meter, H = BO*ac; when bO is 0.5 meters, H = 2BO*ac. For example, if BO is 15 meters and ac is 0.8 meters, then the tree height H = 15 * 0.8 = 12 meters.

[0050] The number of devices and processing capacity described herein are for the purpose of simplifying the description of this utility model. Applications, modifications, and variations of this tree height measuring device will be readily apparent to those skilled in the art.

[0051] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Tree height meter, characterized in that The utility model relates to a cross intersection measuring assembly and leveler, and belongs to the technical field of surveying instruments. The cross intersection measuring assembly comprises a vertical rod and a horizontal rod, the vertical rod is provided with a hole in the middle part, the horizontal rod is slidably arranged in the hole, and the surfaces of the vertical rod and the horizontal rod are both provided with scales. The leveler is arranged on the horizontal rod.

2. The tree height meter of claim 1, wherein, The utility model also relates to a support rod. The lower end of the support rod is used for fixing with the ground, the upper end of the support rod is provided with a sleeve, a plurality of screw holes are formed in the side wall of the sleeve, bolts are arranged in the screw holes, the lower end of the vertical rod is slidably arranged in the sleeve, and the vertical rod can be fixed with the sleeve by screwing the bolts.

3. The tree height meter of claim 2, wherein, The end of the bolt is provided with a knob.

4. The tree height meter of claim 1, wherein, The axis of the hole is perpendicular to the axis of the vertical rod.

5. The tree height meter of claim 1, wherein, The cross section of the vertical rod and the horizontal rod is polygonal.

6. The tree height meter of claim 1, wherein, The upper end of the vertical rod, both ends of the horizontal rod are provided with rubber sleeves.

7. Tree height measurer, characterized in that The utility model relates to a cross intersection measuring assembly and leveler, and belongs to the technical field of surveying instruments. The cross intersection measuring assembly comprises a vertical rod and a horizontal rod, the vertical rod is provided with a hole in the middle part, the horizontal rod is slidably arranged in the hole, and the surfaces of the vertical rod and the horizontal rod are both provided with scales. The leveler is arranged on the horizontal rod. The lower end of the support rod is used for fixing with the ground, the upper end of the support rod is provided with a sleeve, a plurality of screw holes are formed in the side wall of the sleeve, bolts are arranged in the screw holes, the lower end of the vertical rod is slidably arranged in the sleeve, and the vertical rod can be fixed with the sleeve by screwing the bolts. The end of the bolt is provided with a knob.

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