Shooting device for topographic surveying and mapping

Abstract

The utility model discloses a shooting device for topographic surveying and mapping. The shooting device comprises an unmanned aerial vehicle, a telescopic base, surveying and mapping equipment and an air bag, the unmanned aerial vehicle comprises a vehicle body, vehicle arms, an annular support and rotor wings. A plurality of machine arms are arranged in the circumferential direction of the machine body, an annular support is arranged at the end of each machine arm, protective nets are arranged at the upper end and the lower end of each annular support, and the rotor wings are arranged in the space defined by the annular supports and the protective nets; a telescopic base is arranged at the bottom of the body; surveying and mapping equipment is mounted at the lower end of the telescopic base; the airbags are sleeved on the fuselage and are filled with helium; airflow holes for airflow to pass through are formed in the air bags at the rotor wings, and equipment holes for the surveying and mapping equipment to extend out are formed in the air bags at the surveying and mapping equipment. The problem that in the prior art, when the unmanned aerial vehicle collides with the cultural relic ruins due to misoperation or air crash of the unmanned aerial vehicle, the cultural relic ruins are damaged is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of photographing devices, and specifically relates to a photographing device for terrain surveying and mapping. Background Art

[0002] The protection and mapping of cultural relics and sites is an important task. Cultural relics and sites represent the history and cultural heritage of mankind and have important academic and historical research value. In recent years, the technology of using drones for the protection and mapping of cultural relics and sites has been continuously developed, providing a new perspective and method for the protection and research of cultural relics. As an emerging remote sensing technology application tool, drones have many unique advantages. First of all, drones are highly flexible and maneuverable, and can fly in complex terrain and difficult-to-reach areas to obtain more remote sensing data from different angles. However, there are still certain safety hazards in the use of drones for mapping. When drones fail to operate correctly or crash and cause the drones to hit cultural relics and sites, the cultural relics and sites will be damaged. Therefore, the existing shooting devices cannot meet the needs of terrain mapping of cultural relics and sites. Utility Model Content

[0003] The embodiment of the present application solves the problem in the prior art that cultural relics may be damaged when a drone crashes into a cultural relic site due to an operation error or a crash of the drone, by providing a shooting device for topographic surveying and mapping.

[0004] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a shooting device for terrain surveying and mapping, including a drone, a telescopic base, a surveying and mapping device, and an airbag;

[0005] The drone comprises a fuselage, an arm, a ring bracket and a rotor;

[0006] A plurality of arms are arranged around the fuselage, the end of each arm is provided with the annular bracket, the upper and lower ends of the annular bracket are provided with a protective net, and the rotor is arranged in a space enclosed by the annular bracket and the protective net;

[0007] The bottom of the fuselage is provided with the telescopic base, and the lower end of the telescopic base is installed with the surveying and mapping equipment;

[0008] The airbag is sleeved on the fuselage and is filled with helium. The airbag is provided with airflow holes for airflow at the position of the rotor, and the airbag is provided with a device hole for the surveying and mapping device to extend at the position of the surveying and mapping device.

[0009] In one possible implementation, the airbag includes an upper bladder body and a lower bladder body, both of which are cylindrical structures, the upper bladder body is arranged at the upper part of the machine arm, and the lower bladder body is arranged at the lower part of the machine arm, and the contact surfaces of the upper bladder body and the lower bladder body are respectively provided with matching tearable female Velcro and tearable male Velcro, and the outer walls of the upper bladder body and the lower bladder body are circumferentially provided with multiple matching fixing belts and buckles.

[0010] In a possible implementation, a mounting groove matching with the machine arm and the upper part of the machine body is provided at the bottom of the upper capsule;

[0011] A step hole is provided at the center of the lower capsule, and the step hole includes a first hole and a second hole, a step surface is formed between the first hole and the second hole, the first hole is adapted to the lower structure of the fuselage, the step surface is circumferentially abutted against the bottom of the fuselage, and the second hole is the equipment hole.

[0012] In a possible implementation, anti-collision rings are provided around the upper and lower parts of the airbag.

[0013] In a possible implementation, a landing gear is provided around the bottom of the lower bladder, the landing gear is located inside the air flow hole, the landing gear is a columnar structure, and the height of the landing gear is 5 to 12 cm.

[0014] In a possible implementation, the telescopic base includes a mounting cylinder, a telescopic inner cylinder, a compression spring and an electromagnetic pin;

[0015] The upper end of the installation tube is connected to the bottom of the fuselage, and a limiting ring is provided on the inner wall of the lower end of the installation tube;

[0016] The upper end of the telescopic inner cylinder passes through the limiting ring and then extends into the mounting cylinder. An annular boss is circumferentially arranged on the upper end of the telescopic inner cylinder, and the outer diameter of the annular boss is larger than the inner diameter of the limiting ring.

[0017] The compression spring is sleeved on the telescopic inner cylinder, the upper end of the compression spring abuts against the bottom surface of the annular boss, and the lower end of the compression spring abuts against the top surface of the limiting ring;

[0018] The electromagnetic pin is arranged inside the telescopic inner cylinder, and a pin hole is arranged on the side wall of the telescopic inner cylinder.

[0019] In a possible implementation, the surveying and mapping equipment includes an oblique photography camera, a multispectral camera, and a laser radar.

[0020] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0021] The embodiment of the utility model provides a shooting device for topographic surveying and mapping. When the device is used, the surveying and mapping equipment is adjusted down through the telescopic base, so that the shooting end of the surveying and mapping equipment extends out of the equipment hole, and the drone is started to rotate the rotor, thereby driving the device to fly. The airbag is filled with helium, so the lift provided by the airbag can offset a part of the gravity. In this embodiment, the weight of the device is about 3kg, and the airbag offsets about 95% of the gravity. Therefore, when the drone is flying, only a small driving force is required to achieve a large mileage surveying and mapping, thereby meeting the needs of large-area surveying and mapping. At the same time, the airbag is wrapped on the outside of the drone, so when the drone fails to operate or crashes into a cultural relic site, the airbag will play a buffering role, so it will not generate a large impact force, thereby maximizing the protection of the cultural relic site from damage. Before the drone fails to operate or crashes into a cultural relic site, the surveying and mapping equipment is raised through the telescopic base, thereby avoiding the problem of damage to the cultural relic site caused by contact between the surveying and mapping equipment and the cultural relic site. The rotor is arranged in the space enclosed by the annular bracket and the protective net, so the rotating rotor will not hit the cultural relic site, thereby further avoiding damage to the cultural relic site. The device can meet the needs of surveying and mapping and protect cultural relics and sites. The device has a simple structure, strong practicality and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic structural diagram of a photographing device for terrain surveying and mapping provided in an embodiment of the utility model.

[0024] Figure 2 for Figure 1 Top view of the .

[0025] Figure 3 for Figure 1 sectional view of .

[0026] Figure 4 for Figure 3 Schematic diagram of the status of the surveying and mapping equipment after its position was adjusted.

[0027] Figure 5 A schematic diagram of the connection status of the lower capsule and the drone provided in an embodiment of the utility model.

[0028] Figure 6 for Figure 5 Top view of the .

[0029] Figure 7A schematic diagram of the connection status of the surveying and mapping equipment, the telescopic base and the drone provided in an embodiment of the utility model.

[0030] Figure 8 A schematic diagram of a retracted state of a telescopic base provided in an embodiment of the utility model.

[0031] Fig. 9 A schematic diagram of the extended state of the telescopic base provided in an embodiment of the utility model.

[0032] Figure numerals: 1-UAV; 2-telescopic base; 3-surveying equipment; 4-airbag; 5-fuselage; 6-arm; 7-annular bracket; 8-rotor; 9-airflow hole; 10-equipment hole; 11-upper capsule; 12-lower capsule; 13-installation slot; 14-step hole; 15-landing gear; 16-installation tube; 17-telescopic inner tube; 18-compression spring; 19-electromagnetic pin; 20-limiting ring; 21-annular boss. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] In the description of the embodiments of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0035] like Figures 1 to 9 As shown, the shooting device for terrain surveying and mapping provided by the embodiment of the utility model includes a drone 1, a telescopic base 2, a surveying and mapping device 3 and an airbag 4.

[0036] The drone 1 includes a fuselage 5 , an arm 6 , a ring bracket 7 and a rotor 8 .

[0037] A plurality of arms 6 are arranged circumferentially of the fuselage 5, an annular bracket 7 is arranged at the end of each arm 6, a protective net is arranged at the upper and lower ends of the annular bracket 7, and the rotor 8 is arranged in the space enclosed by the annular bracket 7 and the protective net.

[0038] A telescopic base 2 is provided at the bottom of the fuselage 5 , and a surveying and mapping device 3 is installed at the lower end of the telescopic base 2 .

[0039] The airbag 4 is mounted on the fuselage 5 and filled with helium. The airbag 4 is provided with an airflow hole 9 for airflow to pass through at the position of the rotor 8, and is provided with an equipment hole 10 for the surveying and mapping equipment 3 to extend out at the position of the surveying and mapping equipment 3.

[0040] It should be noted that the annular bracket 7 is clamped on the hole wall of the airflow hole 9. The structure of the airbag 4 is shown in the figure, and the airbag 4 is completely wrapped around the outside of the drone 1. When the surveying and mapping equipment 3 is not in use, the surveying and mapping equipment 3 is moved into the equipment hole 10 through the telescopic base 2.

[0041] When the device is used, the surveying and mapping equipment 3 is lowered through the telescopic base 2 so that the shooting end of the surveying and mapping equipment 3 extends out of the equipment hole 10, and the drone 1 is started to rotate the rotor 8, thereby driving the device to fly. The airbag 4 is filled with helium, so the lift provided by the airbag 4 can offset part of the gravity. In this embodiment, the weight of the device is about 3kg, and the airbag 4 offsets about 95% of the gravity. Therefore, when the drone 1 is flying, only a small driving force is required to achieve a large mileage survey, thereby meeting the needs of large-area surveying and mapping. At the same time, the airbag 4 is wrapped around the outside of the drone 1, so when the drone 1 fails to operate or crashes into a cultural relic site, the airbag 4 will play a buffering role, so it will not generate a large impact force, thereby maximizing the protection of the cultural relic site from damage. When the drone 1 makes an operation error or crashes into a cultural relic site, the surveying and mapping device 3 is adjusted upward by the telescopic base 2, thereby avoiding the problem that the surveying and mapping device 3 and the cultural relic site are in contact and thus causing damage to the cultural relic site. The rotor 8 is arranged in the space enclosed by the annular bracket 7 and the protective net, so the rotating rotor 8 will not hit the cultural relic site, thereby further avoiding damage to the cultural relic site. The device can meet the surveying and mapping needs and protect the cultural relic site. The device has a simple structure, strong practicality, and is easy to promote and use.

[0042] In this embodiment, the airbag 4 includes an upper bladder body 11 and a lower bladder body 12. Both the upper bladder body 11 and the lower bladder body 12 are columnar structures. The upper bladder body 11 is arranged at the upper part of the arm 6, and the lower bladder body 12 is arranged at the lower part of the arm 6. The contact surfaces of the upper bladder body 11 and the lower bladder body 12 are respectively provided with matching tearable female Velcro and tearable male Velcro, and the outer walls of the upper bladder body 11 and the lower bladder body 12 are circumferentially provided with multiple matching fixing belts and buckles.

[0043] It should be noted that the airbag 4 is composed of the upper bladder body 11 and the lower bladder body 12, so it is convenient to wrap the airbag 4 on the outside of the drone 1. The tearable female hook and loop fastener, the fixing belt and the buckle facilitate the installation and removal of the upper bladder body 11 and the lower bladder body 12. The structural form of the tearable female hook and loop fastener, the fixing belt and the buckle is the prior art, and this embodiment will not be further described.

[0044] In this embodiment, a mounting groove 13 matching with the arm 6 and the upper part of the body 5 is provided at the bottom of the upper capsule 11 .

[0045] A step hole 14 is provided at the center of the lower capsule 12. The step hole 14 includes a first hole and a second hole. A step surface is formed between the first hole and the second hole. The first hole is adapted to the lower structure of the fuselage 5. The step surface is circumferentially abutted against the bottom of the fuselage 5. The second hole is the equipment hole 10.

[0046] It should be noted that the structural form of the upper bladder body 11 and the lower bladder body 12 can improve the fit of the airbag 4 and achieve a better installation effect. The airflow holes 9 are arranged at corresponding positions of the upper bladder body 11 and the lower bladder body 12.

[0047] In this embodiment, anti-collision rings are provided around the upper and lower parts of the airbag 4 .

[0048] It should be noted that the anti-collision ring can improve the structural strength of the airbag 4 on the one hand, and can prevent the airbag 4 from being damaged when the airbag 4 collides with an object on the other hand.

[0049] In this embodiment, a landing gear 15 is provided around the bottom of the lower bladder 12 . The landing gear 15 is located inside the air flow hole 9 . The landing gear 15 is a columnar structure, and the height of the landing gear 15 is 5 to 12 cm.

[0050] It should be noted that the landing gear 15 facilitates the landing of the device. The landing gear 15 is located on the inner side of the airflow hole 9, so as to better support the device. The landing gear 15 is installed at the bottom of the lower capsule 12, and the lower capsule 12 can play a certain shock-absorbing role.

[0051] In this embodiment, the telescopic base 2 includes a mounting tube 16 , a telescopic inner tube 17 , a compression spring 18 and an electromagnetic pin 19 .

[0052] The upper end of the installation tube 16 is connected to the bottom of the fuselage 5 , and a limit ring 20 is provided on the inner wall of the lower end of the installation tube 16 .

[0053] The upper end of the telescopic inner cylinder 17 passes through the limiting ring 20 and then extends into the mounting cylinder 16 . An annular boss 21 is circumferentially provided on the upper end of the telescopic inner cylinder 17 . The outer diameter of the annular boss 21 is greater than the inner diameter of the limiting ring 20 .

[0054] A compression spring 18 is sleeved on the telescopic inner cylinder 17 . The upper end of the compression spring 18 abuts against the bottom surface of the annular boss 21 , and the lower end of the compression spring 18 abuts against the top surface of the limit ring 20 .

[0055] An electromagnetic pin 19 is arranged inside the telescopic inner cylinder 17 , and a pin hole is arranged on the side wall of the telescopic inner cylinder 17 .

[0056] It should be noted that when the device is used, the surveying and mapping equipment 3 is adjusted downward through the telescopic base 2, that is, the telescopic inner cylinder 17 is moved to the lowest end of the mounting cylinder 16, the compression spring 18 is contracted, and then the pin body of the electromagnetic pin 19 is controlled to extend out of the pin hole, and the pin body of the electromagnetic pin 19 is clamped to the lower end of the limit ring 20, thereby fixing the position of the surveying and mapping equipment 3. When the drone 1 is operated incorrectly or crashes into a cultural relic site, the pin body of the electromagnetic pin 19 is controlled to retract, and the surveying and mapping equipment 3 and the telescopic inner cylinder 17 are moved upward under the action of the compression spring 18 until the compression spring 18 returns to a natural state, and then the surveying and mapping equipment 3 is moved into the equipment hole 10.

[0057] In this embodiment, when the electromagnetic pin 19 is powered on, the staff can manually control the extension and retraction of the electromagnetic pin 19. When the electromagnetic pin 19 is powered off, the electromagnetic pin 19 retracts, so that when the drone is powered off and falls, the surveying and mapping equipment 3 can automatically move into the equipment hole 10, thereby better protecting the surveying and mapping equipment 3 and the cultural relics. The structural form and control method of the electromagnetic pin 19 are both existing technologies, and this embodiment will not be further described.

[0058] In this embodiment, the surveying and mapping equipment 3 includes an oblique photography camera, a multispectral camera and a laser radar.

[0059] It should be noted that oblique photography cameras, multispectral cameras and lidar can meet different surveying and mapping needs, thereby realizing fast and efficient multi-angle and multi-band surveying of cultural relics sites.

[0060] In this embodiment, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiment, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A photographing device for terrain surveying and mapping, characterized in that: It comprises a drone (1), a telescopic base (2), a surveying and mapping device (3) and an airbag (4); The drone (1) comprises a fuselage (5), an arm (6), a ring bracket (7) and a rotor (8); A plurality of the arms (6) are arranged in the circumferential direction of the fuselage (5), the end of each of the arms (6) is provided with the annular bracket (7), the upper and lower ends of the annular bracket (7) are provided with a protective net, and the rotor (8) is arranged in a space enclosed by the annular bracket (7) and the protective net; The bottom of the fuselage (5) is provided with the telescopic base (2), and the lower end of the telescopic base (2) is installed with the surveying and mapping equipment (3); The airbag (4) is mounted on the fuselage (5), and the airbag (4) is filled with helium; the airbag (4) is provided with an airflow hole (9) for airflow to pass through at the position of the rotor (8), and the airbag (4) is provided with an equipment hole (10) for the surveying and mapping equipment (3) to extend out at the position of the surveying and mapping equipment (3).

2. The photographing device for topographic surveying and mapping according to claim 1, characterized in that: The airbag (4) comprises an upper bladder body (11) and a lower bladder body (12), both of which are columnar structures. The upper bladder body (11) is arranged at the upper part of the machine arm (6), and the lower bladder body (12) is arranged at the lower part of the machine arm (6). The surfaces where the upper bladder body (11) and the lower bladder body (12) contact each other are respectively provided with matching tearable female Velcro and tearable male Velcro, and the outer walls of the upper bladder body (11) and the lower bladder body (12) are circumferentially provided with a plurality of matching fixing belts and buckles.

3. The photographing device for topographic surveying and mapping according to claim 2, characterized in that: The bottom of the upper capsule (11) is provided with a mounting groove (13) which matches with the arm (6) and the upper part of the fuselage (5); A step hole (14) is provided at the center of the lower capsule (12), and the step hole (14) includes a first hole and a second hole, a step surface is formed between the first hole and the second hole, the first hole is adapted to the lower structure of the fuselage (5), the step surface is circumferentially abutted against the bottom of the fuselage (5), and the second hole is the equipment hole (10).

4. The photographing device for topographic surveying and mapping according to claim 1, characterized in that: Anti-collision rings are arranged around the upper and lower parts of the airbag (4).

5. The photographing device for topographic surveying and mapping according to claim 2, characterized in that: A landing gear (15) is arranged circumferentially at the bottom of the lower bladder (12); the landing gear (15) is located inside the air flow hole (9); the landing gear (15) is a columnar structure; and the height of the landing gear (15) is 5 to 12 cm.

6. The photographing device for topographic surveying and mapping according to claim 1, characterized in that: The telescopic base (2) comprises a mounting cylinder (16), a telescopic inner cylinder (17), a compression spring (18) and an electromagnetic pin (19); The upper end of the installation tube (16) is connected to the bottom of the fuselage (5), and a limiting ring (20) is provided on the inner wall of the lower end of the installation tube (16); The upper end of the telescopic inner cylinder (17) passes through the limiting ring (20) and then extends into the mounting cylinder (16); an annular boss (21) is provided in the circumferential direction of the upper end of the telescopic inner cylinder (17); the outer diameter of the annular boss (21) is greater than the inner diameter of the limiting ring (20); The compression spring (18) is sleeved on the telescopic inner cylinder (17), the upper end of the compression spring (18) abuts against the bottom surface of the annular boss (21), and the lower end of the compression spring (18) abuts against the top surface of the limiting ring (20); The electromagnetic pin (19) is arranged inside the telescopic inner cylinder (17), and a pin hole is arranged on the side wall of the telescopic inner cylinder (17).

7. The photographing device for topographic surveying and mapping according to claim 1, characterized in that: The surveying and mapping equipment (3) comprises an oblique photography camera, a multispectral camera and a laser radar.

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