Rotary geological caving close photogrammetry equipment

Abstract

The utility model provides rotary geological caving close photogrammetry equipment, which comprises a bracket serving as a gravity supporting piece of each component; the transverse rod is transversely arranged on the bracket; the two end parts of the cross rod are respectively pivoted on the bracket; the photographing device is fixedly mounted on the cross rod; the photographing device is used for swinging along with the cross rod around the virtual central axis of the cross rod, so that overlapping photographing of the rotary geological caving is realized; the at least one scale turntable is mounted on the cross rod and is coaxial with the cross rod; the scale turntable concentrically rotates along with the cross rod and is used for measuring rotation angles of the cross rod and the photographing device; the at least one lamp is mounted on the cross rod and is positioned beside the photographing device; and the lamp is used for illuminating the hole wall close to the shot by the shooting device. According to the utility model, geological caving photographic equipment can carry out close shooting according to a certain overlapping degree, and a shooting rotation angle is easy to measure, so that a fine and high-definition geological caving image under the condition of sufficient illumination is obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of geological caving photogrammetry equipment, in particular to a rotary geological caving photogrammetry equipment. Background Art

[0002] In pumped-storage power station projects, it's crucial to select a location with favorable geological conditions for the underground powerhouse and high-voltage manifolds, and conduct an engineering geological evaluation of the selected powerhouse cavern complex, primarily through geological exploration. Close-up photogrammetry is an object-oriented method of photographing surfaces. Using close-up equipment to obtain ultra-high-resolution images, it extracts refined geographic information, enabling a high degree of restoration of the surface and object's fine structure. Close-up photogrammetry is the inevitable result of the integration of the need for refined earth observation and the development of rotary-wing drones. It is driving the development of photogrammetry and refined 3D modeling, and has promising applications in landslide monitoring, urban reconstruction, historical building reconstruction, and water conservancy project monitoring.

[0003] According to the requirements for the construction of digital twins for water conservancy projects, "GIS+BIM" has become the standard for digital management systems during construction and operation in my country's water conservancy industry. During the construction of pumped-storage power stations, establishing realistic 3D models of geological exploration holes has become a new requirement. This data allows for the rapid extraction of relevant information such as geological elements (lithology, structure, groundwater, surrounding rock quality, etc.) and construction quality (semi-porosity, over-excavation, anchoring layout, and support progress). Photogrammetry technology is an important method for producing high-precision realistic 3D models, but it currently only uses drones as a platform to capture outdoor terrain and features, and cannot be applied indoors. The reason is that there is no satellite positioning signal indoors, making drones unable to carry out the mission. Furthermore, the lack of light indoors, especially in geological exploration holes, fails to provide a good lighting environment for capturing qualified images. Utility Model Content

[0004] In view of this, it is necessary to propose a rotary geological cave close-up photogrammetry device to address the above-mentioned problems, so as to overcome several shortcomings in the above-mentioned background technology and solve the following technical problems: how to make the geological cave close-up photogrammetry equipment perform close-up shooting with a certain degree of overlap and easily measure the camera rotation angle, so as to obtain fine and high-definition geological cave images under sufficient lighting conditions.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a rotary geological caving close-up photogrammetry device, comprising:

[0007] a bracket, serving as a gravity support for the components;

[0008] A crossbar is disposed transversely on the bracket; both ends of the crossbar are pivotally connected to both sides of the bracket;

[0009] a photographic device fixedly mounted on the crossbar; the photographic device is configured to swing along the crossbar around a virtual central axis of the crossbar;

[0010] At least one graduated turntable, mounted on the crossbar and coaxial with the crossbar; the graduated turntable rotates concentrically with the crossbar to measure the rotation angle of the crossbar and the photographic device;

[0011] At least one lamp is installed on the crossbar and is located beside the photographic device; the lamp is used to illuminate the cave wall that is photographed closely by the photographic device.

[0012] Furthermore, at least three bracket rollers are provided at the bottom of the bracket; the bracket rollers are used to enable the photographic device to shoot smoothly when the bracket moves horizontally; and the moving direction of the bracket rollers is the same as the length direction of the crossbar.

[0013] Furthermore, there are two scale dials, the middle part of the first scale dial is installed on the left end of the cross bar, and the middle part of the second scale dial is installed on the right end of the cross bar.

[0014] Furthermore, the rotary geological caving close-up photogrammetry equipment also includes at least one lamp stand; the lamp is mounted on the crossbar via the corresponding lamp stand.

[0015] Furthermore, the number of the lamps is four, which are respectively located around the lens of the photographic device.

[0016] Furthermore, the bracket is provided with two bracket bearings; one end of the cross bar penetrates into a bracket bearing installed on one side of the bracket; the other end of the cross bar penetrates into another bracket bearing installed on the other side of the bracket.

[0017] Furthermore, the bracket includes a bracket base and two bracket telescopic rods; the two bracket telescopic rods are respectively erected on two lateral sides of the bracket base.

[0018] Furthermore, the cross bar is a telescopic rod.

[0019] Furthermore, the photographic device is mounted on the crossbar via a sleeve; the crossbar passes through the sleeve; and the sleeve is locked to the crossbar via a fastening screw.

[0020] Furthermore, the photographic device is located on the middle portion of the crossbar.

[0021] The beneficial effects of the utility model are:

[0022] The utility model can enable geological cave photography equipment to perform close-up shooting with a certain degree of overlap and easily measure the camera rotation angle. It can also realize close-up photography in geological caves with extremely poor natural lighting environments, thereby obtaining fine and high-definition geological cave images under sufficient lighting conditions, and providing a shooting hardware foundation for quickly establishing a real-life three-dimensional model of the geological cave. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of a rotary geological caving close-up photogrammetry device of the present invention;

[0024] Figure 2 This is a top view of a rotary geological caving close-up photogrammetry device of the present invention;

[0025] Figure 3 This is a rear view of a rotary geological caving close-up photogrammetry device of the present invention;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the photographic device and the sleeve installation involved in the present utility model;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the scale dial involved in the utility model;

[0028] Description of reference numerals:

[0029] Bracket 1; bracket roller 11; bracket base 12; bracket telescopic rod 13; bracket bearing 14; crossbar 2; lamp 31; lamp stand 32; photographic device 4; scale dial 5; fastening screw 6; sleeve 7. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be further clearly and completely described below in conjunction with the embodiments of the present invention. It should be noted that the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Terms such as "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, the definition of "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of such features.

[0033] Example 1

[0034] like Figure 1-Figure 3 As shown:

[0035] This embodiment provides a rotary geological caving close-up photogrammetry device, comprising:

[0036] A bracket 1, serving as a gravity support for each component;

[0037] A crossbar 2 is disposed transversely on the bracket 1; both ends of the crossbar 2 are pivotally connected to both sides of the bracket 1;

[0038] A photographic device 4 is fixedly mounted on the crossbar 2; the photographic device 4 is configured to swing about a virtual central axis of the crossbar 2 (particularly suitable for repeated swinging, and also for 360° rotation), thereby achieving overlapping photography during rotary geological caving;

[0039] At least one scale dial 5 (such as Figure 5 As shown), it is mounted on the crossbar 2 and is coaxial with the crossbar 2; the scale dial 5 rotates concentrically with the crossbar 2 and is used to measure the rotation angle of the crossbar 2 and the photographic device 4;

[0040] At least one lamp 31 is installed on the crossbar 2 and is located beside the photographic device 4 ; the lamp 31 is used to illuminate the cave wall that is being photographed closely by the photographic device 4 .

[0041] Optimally, at least three bracket rollers 11 are provided at the bottom of the bracket 1; the bracket rollers 11 are used to enable the photographic device 4 to shoot smoothly when the bracket 1 moves horizontally; the moving direction of the bracket rollers 11 is the same as the length direction of the cross bar 2, so that the horizontal movement of the bracket 1 can also improve the shooting efficiency.

[0042] Optimally, the number of the scale dials 5 is two, the middle part of the first scale dial 5 is installed on the left end of the cross bar 2 (that is, the cross bar 2 is perpendicular to the inner side of the first scale dial 5), and the middle part of the second scale dial 5 is installed on the right end of the cross bar 2 (that is, the cross bar 2 is perpendicular to the inner side of the second scale dial 5); the installation position of the scale dial 5 is convenient for the operator to observe and adjust.

[0043] Optimally, the rotary geological caving close to the photogrammetry equipment also includes at least one lamp holder 32; the lamp 31 is detachably mounted on the crossbar 2 through the corresponding lamp holder 32; this makes it convenient to replace lamps or set up on-site equipment, and lamps can be quickly added according to the on-site illumination.

[0044] Optimally, the number of the lamps 31 is preferably four, which are located around the lens of the photographic device 4; specifically, the illumination direction of the lamp 31 is consistent with the shooting direction of the photographic device 4, and the lamp 31 provides fill light from the upper left, upper right, lower left and lower right positions of the photographic device 4 to balance the lighting.

[0045] Optimally, the bracket 1 is provided with two bracket bearings 14 ; one end of the cross bar 2 penetrates into a bracket bearing 14 installed on one side of the bracket 1 ; the other end of the cross bar 2 penetrates into another bracket bearing 14 installed on the other side of the bracket 1 .

[0046] Optimally, the bracket 1 includes a bracket base 12 and two bracket telescopic rods 13; the two bracket telescopic rods 13 are respectively erected on the two lateral sides of the bracket base 12; the height of the photographic device 4 is adjusted by the bracket telescopic rods 13 to adapt to the complex environment of the tunnel.

[0047] Optimally, the crossbar 2 is a telescopic rod, which can adapt to the complex environment of the tunnel through the extension and retraction of the crossbar 2. Other shooting-related devices can also be added to the crossbar 2 according to actual shooting needs.

[0048] Optimally, the photographic device 4 is provided through a sleeve 7 (such as Figure 4 The cross bar 2 is inserted into the sleeve 7; the sleeve 7 is locked to the cross bar 2 by a fastening screw 6, so that the installation is firm and convenient for disassembly and storage.

[0049] Optimally, the photographic device 4 is located in the middle of the crossbar 2 .

[0050] Example 2

[0051] Example 2 is a further optimization of any technical solution in Example 1;

[0052] The bracket 1 is divided into two identical sub-brackets, front and rear. The bracket roller 11 is mounted below the bracket base 12, allowing the photogrammetry device to move forward and backward under external force. The bracket telescopic rod 13 is mounted on the bracket base 12 and can be extended and retracted to adjust the height of its upper component. It is locked with a fastening screw 6. The bracket bearing 14 is fixedly mounted on the upper part of the bracket telescopic rod 13, and the central opening is just large enough to insert the crossbar 2.

[0053] The crossbar 2 includes a crossbar main rod and two crossbar telescopic rods. One end of the crossbar telescopic rod can be inserted into the two ends of the crossbar main rod to achieve telescopic adjustment to adjust the overall length of the crossbar 2. It can be locked with a fastening screw 6; the other end of the crossbar telescopic rod can be inserted into the hole of the bracket bearing 14 and fastened by a lock to prevent it from falling out.

[0054] A lamp 31 and a lamp stand 32 constitute a lighting device. The lamp 31 is fixed to the lamp stand 32 by two screws, one in front and one in the back, and can be rotated around the screws to adjust the lighting direction. The two lighting devices are fixedly mounted on the sleeve 7, one above and one below. The aperture size of the sleeve 7 is consistent with the outer diameter of the crossbar main rod, so that the sleeve 7 can just fit into the crossbar main rod and is locked by the fastening screw 6 on the sleeve 7 to fix its position on the crossbar main rod. The photographic device 4 can be fixed to the sleeve 7 by screws, thereby achieving fixed installation on the crossbar main rod. The lighting devices are generally installed on both sides of the photographic device 4 and are symmetrically distributed. In order to ensure that the photographed object can be illuminated by the light to the maximum extent, it should be achieved that: the lighting direction should be consistent with the photographic direction, the distance between the lighting device and the photographic device 4 can be adjusted according to the size of the imaging frame, and the rotation angle of the lamp 31 is also adjusted accordingly.

[0055] The scale dial 5 is circular in shape, with scales from 0° to 360° around its circumference, and a hole is opened in the center. The hole size is consistent with the cross-sectional size of the crossbar telescopic rod, so that it can be inserted exactly and fastened by a lock to prevent it from falling out;

[0056] After all the above components are installed, rotating the scale dial 5 can drive the cross bar 2 to rotate, thereby driving the lighting equipment and the photographic device 4 to rotate. The rotation angle can be controlled according to the scale on the scale dial 5 to achieve the shooting of images with a certain degree of overlap. One rotation and shooting can achieve 360° shooting of a certain section of the geological cave. After one circle of shooting, the device is pushed forward / backward a certain distance to shoot the next site.

[0057] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A rotary geological caving close-up photogrammetry device, characterized in that: include: a bracket (1) serving as a gravity support for each component; A crossbar (2) is disposed transversely on the bracket (1); two ends of the crossbar (2) are pivotally connected to two sides of the bracket (1); a photographic device (4) fixedly mounted on the crossbar (2); the photographic device (4) is used to swing around the virtual central axis of the crossbar (2) and follow the crossbar (2); At least one scale turntable (5) is mounted on the crossbar (2) and is coaxial with the crossbar (2); the scale turntable (5) rotates coaxially with the crossbar (2) and is used to measure the rotation angle of the crossbar (2) and the photographic device (4); At least one lamp (31) is installed on the crossbar (2) and is located beside the photographic device (4); the lamp (31) is used to illuminate the cave wall that is photographed closely by the photographic device (4).

2. The rotary geological caving close-up photogrammetry device according to claim 1, characterized in that: At least three bracket rollers (11) are provided at the bottom of the bracket (1); the bracket rollers (11) are used to enable the photographic device (4) to shoot steadily when the bracket (1) moves horizontally; and the moving direction of the bracket rollers (11) is the same as the length direction of the crossbar (2).

3. The rotary geological caving close-up photogrammetry device according to claim 1, characterized in that: There are two scale dials (5), the middle of the first scale dial (5) is mounted on the left end of the crossbar (2), and the middle of the second scale dial (5) is mounted on the right end of the crossbar (2).

4. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The rotary geological caving close-up photogrammetry device further comprises at least one lamp stand (32); the lamp (31) is mounted on the crossbar (2) via the corresponding lamp stand (32).

5. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The number of the lamps (31) is four, and they are respectively located around the lens of the photographic device (4).

6. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The bracket (1) is provided with two bracket bearings (14); one end of the cross bar (2) penetrates into a bracket bearing (14) installed on one side of the bracket (1); the other end of the cross bar (2) penetrates into another bracket bearing (14) installed on the other side of the bracket (1).

7. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The bracket (1) comprises a bracket base (12) and two bracket telescopic rods (13); the two bracket telescopic rods (13) are respectively erected on two lateral sides of the bracket base (12).

8. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The cross bar (2) is a telescopic rod.

9. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The photographic device (4) is mounted on the crossbar (2) via a sleeve (7); the crossbar (2) is inserted into the sleeve (7); and the sleeve (7) is locked onto the crossbar (2) via a fastening screw (6).

10. The rotary geological caving close-up photogrammetry device according to any one of claims 1 to 3, characterized in that: The photographic device (4) is located on the middle portion of the crossbar (2).

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