Cane cadastral surveying and mapping device suitable for field operation

Abstract

The invention provides a cadastral surveying and mapping device suitable for field operation, and relates to the technical field of cadastral surveying and mapping equipment, the cadastral surveying and mapping device comprises a flight assembly, an insertion sleeve, a storage assembly and an anti-falling assembly, the flight assembly comprises an unmanned aerial vehicle and supporting legs, a surveying and mapping assembly is installed at the bottom of the unmanned aerial vehicle, and the surveying and mapping assembly comprises a cadastral surveying and mapping instrument and a connecting ring; a fixing assembly is installed at the bottom of the unmanned aerial vehicle and comprises a lower sleeve and a clamping sleeve, a rotating assembly is installed on the inner side of the lower sleeve and comprises a motor and a supporting sleeve, and a movable assembly is installed on the inner side of the supporting sleeve. According to the cadastral surveying and mapping device suitable for field operation, power can be provided for the cleaning component in the well body through the driving equipment outside the well body, all the screen pipes can be cleaned through intermittent reciprocating rotation of the driving equipment, scaling in the screen pipes is avoided, especially blockage in kerfs is avoided, the filtering efficiency of the screen pipes is guaranteed, and the service life of the screen pipes is prolonged. The method is suitable for cadastral surveying and mapping of field land.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of field cadastral surveying and mapping equipment, and particularly relates to a cadastral surveying and mapping device suitable for field operation. BACKGROUND

[0002] In order to facilitate the services of earthquakes, surveying and mapping services other than satellite application services, surveying and mapping geographic information services, and mineral geological exploration services using high technology, it is often necessary to survey and map the cadastral information in the field, and then use field cadastral surveying and mapping equipment.

[0003] The utility model discloses a kind of outdoor surveying equipment for geographic mapping, closed protection mechanism is installed in the front end of range finder, when using, directly push range finder towards front end can trigger the gear set structure inside guide clamping plate, to realize the automatic opening effect of end closed protection mechanism, and after completing measurement, only need to loosen traction locking piece, it can be realized automatic closing process using the automatic reset assembly of rear end, avoid the situation of forgetting, strengthen the protection of observation lens part, the traction locking piece of outdoor surveying equipment both sides can be used to move range finder traction, convenient and fast to use, can also be directly rotated threaded sleeve after completing horizontal angle control Locking disc of entire range finder and bottom to avoid subsequent mis-touching dial portion to cause range finder to occur slightly rotating condition, it can also avoid closed protection mechanism to be triggered when leaving in short time, when opening, outdoor surveying equipment, by the second spring in automatic reset assembly, range finder can be quickly opened under the condition that air bag is not inflated, and after being completely opened, it can be reduced by the inflation of air bag Reset pull of automatic reset assembly is affected, in subsequent reset process, it can also be buffered by air bag, so that reset process is more slow and continuous.The utility model discloses a kind of unmanned aerial vehicle surveying and mapping systems, camera can be protected is placed in the placing frame inside the bottom of placing plate, placing frame inside bottom symmetry is equipped with locking groove, placing frame two sides symmetry are equipped with sliding slot, sliding groove is equipped with pulley slidingly, two pulleys are jointly connected with adjusting plate, adjusting plate top symmetry is equipped with rubber locking ball, rubber locking ball and locking groove locking cooperation arrangement, adjusting plate is connected with the top wall in placing frame inside by reset spring, camera can be protected is installed in the bottom of adjusting plate, the side of camera can be protected of adjusting plate is equipped with clamping column, clamping column bottom end is equipped with clamping block, placing frame bottom is equipped with clamping plate, clamping plate is equipped with clamping groove, clamping block and clamping groove are connected, the side of camera can be protected of adjusting plate is equipped with protection column, protection column and the cooperation arrangement of the protection mechanism of placing frame bottom, when moving wheel contacts ground, support moving plate moves upwards, drive first sleeve to move upwards, second spring moves upwards, second spring is compressed, to drive moving column to move upwards, in turn drive buffer inclined bar to move, then buffer block moves on buffer rod, first spring is stretched to play buffering effect;Stable groove is equipped with stabilizing rod slidingly, and can be stabilized and limit effect to moving column;It improves the protection effect of leveling sensor, and then leveling sensor can keep the balance of unmanned aerial vehicle body, and then improve the cleaning effect of camera can be protected to shoot, by pulling block, adjusting plate can be moved upwards by the cooperation of pulley and sliding slot, rubber locking ball and locking groove locking arrangement, so that camera can be protected is stored in placing frame, camera can be protected can be protected;By pulling block, rubber locking ball is pulled out from locking groove, then clamping block and clamping groove are connected, so that camera can be protected is surveyed, protection column moves downwards, and protection mechanism plays buffering effect, to prevent violent collision when clamping block and clamping groove are connected, damage to camera can be protected.

[0004] According to the disclosed technical scheme, the existing field cadastral surveying and mapping equipment has the following problems: on the one hand, it cannot be quickly replaced with different cadastral surveying and mapping equipment according to different work needs, thereby being not conducive to improving the adaptability of the equipment; on the other hand, when the installation fixing module fails, the power control mechanism cannot be simultaneously removed, thereby reducing the disassembly efficiency of the equipment; on the other hand, when the cadastral surveying and mapping work is performed by using the unmanned aerial vehicle, the unmanned aerial vehicle is prone to crash due to failure, thereby being not conducive to ensuring the working safety of the equipment. SUMMARY

[0005] The present disclosure aims to at least partially solve one of the technical problems in the related art.

[0006] To this end, the purpose of the present disclosure is to provide a cadastral surveying and mapping device suitable for field operation.

[0007] To achieve the above objectives, this disclosure provides a cadastral surveying device suitable for field operations, comprising: a flight component, a sleeve, a storage component, and a fall protection component. The flight component includes a drone and outriggers. A surveying component is mounted on the bottom of the drone, comprising a cadastral surveying instrument and a linkage. A fixing component is mounted on the bottom of the drone, comprising a lower sleeve and a retaining sleeve. A rotating component is mounted inside the lower sleeve, comprising a motor and a support sleeve. A movable component is mounted inside the support sleeve, comprising a slot and an electromagnet. A locking component is mounted inside the slot, comprising a locking pin and a locking mechanism. Spring 1; a disassembly assembly is installed on the insert, the disassembly assembly including a support plate and a notch; the storage assembly includes an upper sleeve and a side sleeve, the upper sleeve is installed on the top of the drone, a protective assembly is installed on the inner side of the upper sleeve, the protective assembly including a cover and a latch; an anti-fall-off assembly is installed on the inner side of the side sleeve, the anti-fall-off assembly including a locking post and a second spring; a fall protection assembly includes a parachute and parachute lines, the parachute is installed on the inner side of the cover, an ejection assembly is installed at the bottom of the parachute, the ejection assembly including gunpowder and an igniter; a protective mechanism is installed at the bottom of the parachute, the protective mechanism including ammonium bicarbonate.

[0008] Optionally, the legs are bolted to the bottom of the drone, the legs are evenly distributed on the bottom of the drone, the lower sleeve is integrally formed on the bottom inner side of the drone, the link is bolted to the top of the cadastral surveying instrument, the clamping sleeve is integrally formed on the outer side of the lower sleeve, the clamping sleeve is evenly distributed around the lower sleeve, and the clamping sleeve is connected to the inner side of the lower sleeve.

[0009] Optionally, the motor is bolted to the inner wall of the top of the lower sleeve, a prism is welded to the output shaft of the motor, a groove is formed on the inner wall of the bottom of the link, the groove is fitted onto the outer side of the prism, the outer side of the top of the support sleeve is engaged with the inner wall of the top of the lower sleeve, the link is mounted on the outer side of the bottom of the support sleeve by a bearing, the outer side of the top of the link is close to the inner wall of the lower sleeve, and the bottom of the link extends to the outer side of the lower sleeve.

[0010] Optionally, the slots are formed on the inner side of the support sleeve, the slots are evenly distributed around the support sleeve, the central axis of the slots coincides with the central axis of the sleeve, the slots and sleeves correspond one-to-one, and the sleeves are located on the outer side of the slots.

[0011] Optionally, the electromagnet is welded to the inner wall of one end of the slot, the outer side of one end of the locking pin is locked to the inner wall of the other end of the slot, the other end of the locking pin passes through the slot and extends to the inner side of the sleeve, the other end of the locking pin has a bevel, the bevel is located inside the sleeve, and one end of the locking pin is connected to the electromagnet by a spring.

[0012] Optionally, the outer diameter of the insert sleeve is equal to the inner diameter of the lower sleeve, the inner diameter of the insert sleeve is equal to the outer diameter of the connecting ring and the support sleeve, the support plate is integrally formed at the bottom of the insert sleeve, the inner side of the support plate has an opening, the inner diameter of the opening is equal to the inner diameter of the insert sleeve, the notch is formed at the top of the insert sleeve, the number of notches is equal to the number of locking pins, the notches are evenly distributed on the insert sleeve, the width of the notch is greater than the width of the locking pin, and the length of the insert sleeve is greater than the depth of the lower sleeve.

[0013] Optionally, the upper sleeve is integrally formed on the inner side of the top of the drone, the bottom of the upper sleeve is integrally formed on the top of the lower sleeve, the outer side of the cover is snapped onto the inner wall of the upper sleeve, and the top of the cover is located on the top of the upper sleeve, with the top of the cover having the same curvature as the top of the drone.

[0014] Optionally, the side sleeve is integrally formed on the outer side of the bottom of the upper sleeve, the side sleeves are evenly distributed on the upper sleeve, the snap is opened at the bottom of the cover, the snap is located on the inner side of the side sleeve, and the snap corresponds one-to-one with the side sleeve.

[0015] Optionally, one end of the locking pin is locked inside the side sleeve, the other end of the locking pin extends to the inside of the bayonet opening, the outer side of the locking pin is locked on the inner walls of the side sleeve and the bayonet opening respectively, and one end of the locking pin is connected to the inner wall of the side sleeve through a spring.

[0016] Optionally, the gunpowder is adhered to the top of the lower sleeve, the ammonium bicarbonate is placed inside the sleeve and wrapped around the outer side of the gunpowder, the parachute is placed on the top of the inner side of the sleeve, the bottom of the parachute is fixed to the top of the lower sleeve by parachute lines, the parachute lines are buried inside the ammonium bicarbonate, the parachute is located on top of the ammonium bicarbonate, and the igniter is welded to the top of the lower sleeve and located inside the gunpowder.

[0017] The technical solution provided in this disclosure may include the following beneficial effects: In use, a drone flies over the top of the cadastral area to be surveyed, and then a cadastral surveying instrument is used to perform cadastral surveying work. The drone's ease of flight improves the efficiency of cadastral surveying. During cadastral surveying, a motor drives a series of links to rotate, which in turn rotates through bearings at the bottom of a support within a lower sleeve, thus rotating the cadastral surveying instrument. Depending on the specific cadastral surveying needs, different cadastral surveying instruments (such as: terrestrial 3D laser scanners, GNSS receivers (including GPS / BeiDou), RTK equipment (real-time dynamic positioning), total stations, etc.) can be selected for surveying. When changing workpieces, turn on the electromagnet. The electromagnet attracts the locking pin through magnetic force. The locking pin compresses the spring and moves completely from the inside of the sleeve to the inside of the slot, thus separating the support sleeve from the lower sleeve. Then, pull the support sleeve and connecting ring downwards from the inside of the lower sleeve. Next, turn on the electromagnet on the cadastral surveying instrument to be replaced. The locking pin is attracted to the inside of the slot by the electromagnet. Then, insert the support sleeve of the cadastral surveying instrument into the inside of the lower sleeve until the slot and sleeve are aligned. Then, turn off the electromagnet. The spring pops the locking pin outwards from the inside of the slot, allowing the locking pin to be inserted into the inside of the sleeve. The locking pin locks the support sleeve and lower sleeve together, enabling quick replacement of different cadastral surveying instruments as needed, thus improving the adaptability of the equipment.

[0018] When the electromagnet fails to open due to malfunction, circuit damage, or insufficient power, rotate the surveying component on the cadastral surveying instrument to a position that does not obstruct the insertion sleeve from being placed on the outside of the instrument. Then push the support plate to allow the insertion sleeve to pass through the tiny gap between the lower sleeve, the connecting ring, and the support sleeve, or use the plasticity of the lower sleeve, the connecting ring, and the support sleeve to insert the insertion sleeve into the gap, ensuring the locking pin is inside the notch. Then rotate the support plate again, which will move the insertion sleeve, causing the notch to rotate inside the lower sleeve. The notch will then push the inclined surface on the locking pin, causing the notch to press against the locking pin. The locking pin compresses the spring and is pushed into the slot, separating the lower sleeve from the support sleeve. Then pull the insertion sleeve and support sleeve downwards from the inside of the lower sleeve to quickly disassemble the cadastral surveying instrument. This prevents the instrument from being unable to be disassembled due to the electromagnet failing to open, ensuring smooth disassembly and assembly.

[0019] In operation, when a drone malfunctions and crashes, personnel remotely activate the igniter. The igniter detonates the gunpowder, creating high pressure inside the casing. This high pressure pushes the locking pin, compressing the spring and moving it completely inside the side casing, separating the casing from the top casing. Air pressure then pushes the casing upwards. Simultaneously, the high temperature from the gunpowder explosion decomposes ammonium bicarbonate into carbon dioxide, water vapor, and ammonia. This process absorbs the heat from the gunpowder explosion, preventing damage to the parachute and lines. Furthermore, the gases from the explosion and the decomposition of ammonium bicarbonate quickly deploy the parachute, allowing it to open. This prevents the parachute from failing to deploy effectively and thus prevents the drone and cadastral surveying instrument from crashing, ensuring their safety.

[0020] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of a cadastral surveying device suitable for field operations, as proposed in one embodiment of this disclosure. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a cadastral surveying device suitable for field operations, as proposed in one embodiment of this disclosure. Figure 2 ; Figure 3 This is a cross-sectional view of a cadastral surveying apparatus suitable for field operations according to an embodiment of this disclosure. Figure 3 ; Figure 4 This is a cross-sectional view of a cadastral surveying apparatus suitable for field operations according to an embodiment of this disclosure. Figure 1 ; Figure 5 This is a cross-sectional view of a cadastral surveying apparatus suitable for field operations according to an embodiment of this disclosure. Figure 2 ; Figure 6 This is a cross-sectional view of a cadastral surveying apparatus suitable for field operations according to an embodiment of this disclosure. Figure 3 ; Figure 7 This is a cross-sectional view of a cadastral surveying apparatus suitable for field operations according to an embodiment of this disclosure. Figure 4 ; Figure 8This is a cutaway diagram of the upper sleeve of a cadastral surveying device suitable for field operations, as proposed in one embodiment of this disclosure. Figure 1 ; Figure 9 This is a cutaway diagram of the upper sleeve of a cadastral surveying device suitable for field operations, as proposed in one embodiment of this disclosure. Figure 2 ; Figure 10 This is a schematic diagram of the structure of the insert of a cadastral surveying device suitable for field operations according to an embodiment of this disclosure; As shown in the figure: 1. Unmanned aerial vehicle (UAV); 2. Outriggers; 3. Cadastral surveying instrument; 4. Linkage; 5. Lower sleeve; 6. Support sleeve; 7. Motor; 8. Slot; 9. Electromagnet; 10. Sleeve; 11. Locking pin; 12. Spring 1; 13. Insert sleeve; 14. Support plate; 15. Notch; 16. Upper sleeve; 17. Enclosure; 18. Side sleeve; 19. Bayonet; 20. Locking post; 21. Spring 2; 22. Parachute; 23. Gunpowder; 24. Ammonium bicarbonate; 25. Ignition device. Detailed Implementation

[0022] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0023] like Figure 1 , Figure 4 , Figure 5 , Figure 6 and Figure 10As shown, this disclosure proposes a cadastral surveying device suitable for field operations, comprising: a flight assembly and a sleeve 13. The flight assembly includes a drone 1 and legs 2. A surveying assembly is mounted on the bottom of the drone 1, including a cadastral surveying instrument 3 and a linkage 4. A fixing assembly is mounted on the bottom of the drone 1, including a lower sleeve 5 and a retaining sleeve 10. A rotating assembly is mounted inside the lower sleeve 5, including a motor 7 and a support sleeve 6. A movable assembly is mounted inside the support sleeve 6, including a slot 8 and an electromagnet 9. A locking assembly is mounted inside the slot 8, including a locking pin 11 and a spring 12. A disassembly assembly is mounted on the sleeve 13, including a support plate 14 and a notch 15. A storage assembly includes an upper sleeve 16 and side sleeves 18. The upper sleeve 16 is mounted on the top of the drone 1. A protective assembly is mounted inside the upper sleeve 16, including a cover 17 and a locking mechanism. 19. An anti-fall-off component is installed on the inner side of the side sleeve 18, the anti-fall-off component including a locking post 20 and a spring 21; a fall protection component, the fall protection component including a parachute 22 and parachute lines, the parachute 22 is installed on the inner side of the cover 17, the bottom of the parachute 22 is installed with an ejection component, the ejection component including gunpowder 23 and an igniter 25, the bottom of the parachute 22 is installed with a protective mechanism, the protective mechanism including ammonium bicarbonate 24, and the outer diameter of the insert 13 is equal to that of the lower sleeve 5. The inner diameter of the insert 13 is equal to the outer diameter of the connecting ring 4 and the support sleeve 6. The support plate 14 is integrally formed on the bottom of the insert 13. An opening is provided on the inner side of the support plate 14. The inner diameter of the opening is equal to the inner diameter of the insert 13. The notch 15 is provided on the top of the insert 13. The number of notches 15 is equal to the number of locking pins 11. The notches 15 are evenly distributed on the insert 13. The width of the notch 15 is greater than the width of the locking pin 11. The length of the insert 13 is greater than the depth of the lower sleeve 5.

[0024] Understandably, when electromagnet 9 malfunctions, the circuit is damaged, or there is insufficient power, preventing it from being opened, the surveying component on the cadastral surveying instrument 3 should be rotated to a position where the insert 13 can no longer obstruct the outer side of the instrument. Then, the support plate 14 should be pushed so that the insert 13 passes through the small gap between the lower sleeve 5, the connecting ring 4, and the support sleeve 6, or the plasticity of the lower sleeve 5, the connecting ring 4, and the support sleeve 6 can be used to insert the insert 13, ensuring the locking pin 11 is inside the notch 15. Then, the support plate 14 should be rotated. 4. Drive the insert sleeve 13, which drives the notch 15 to rotate inside the lower sleeve 5. Then, use the notch 15 to push the inclined surface on the locking pin 11, so that the notch 15 squeezes the locking pin 11 through the inclined surface. The locking pin 11 compresses the spring 12 and is squeezed and pushed to the inside of the slot 8, thereby separating the lower sleeve 5 from the support sleeve 6. Then, pull the insert sleeve 13 and the support sleeve 6 downward from the inside of the lower sleeve 5. The cadastral surveying instrument 3 can be disassembled quickly, avoiding the inability to disassemble the cadastral surveying instrument 3 due to the inability to open the electromagnet 9, and ensuring the smooth progress of the disassembly and assembly work.

[0025] like Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the support legs 2 are bolted to the bottom of the drone 1, and the support legs 2 are evenly distributed on the bottom of the drone 1. The lower sleeve 5 is integrally formed on the inner bottom of the drone 1. The connecting ring 4 is bolted to the top of the cadastral surveying instrument 3. The clamping sleeve 10 is integrally formed on the outer side of the lower sleeve 5, and the clamping sleeve 10 is evenly distributed around the lower sleeve 5. The clamping sleeve 10 is connected to the inner side of the lower sleeve 5. The motor 7 is bolted to the inner wall of the top of the lower sleeve 5. A prism is welded to the output shaft of the motor 7. A groove is formed on the inner wall of the bottom of the connecting ring 4, and the groove is fitted onto the outer side of the prism. The outer side of the top of the support sleeve 6 is clamped onto the inner wall of the top of the lower sleeve 5. The connecting ring 4 is mounted on the outer side of the bottom of the support sleeve 6 via a bearing. On the side, the outer edge of the top of the connecting ring 4 is close to the inner wall of the lower sleeve 5, and the bottom of the connecting ring 4 extends to the outer side of the lower sleeve 5. The slot 8 is opened on the inner side of the support sleeve 6. The slots 8 are evenly distributed around the support sleeve 6. The central axis of the slot 8 coincides with the central axis of the sleeve 10. The slots 8 and sleeves 10 correspond one-to-one. The sleeve 10 is located on the outer side of the slot 8. The electromagnet 9 is welded to the inner wall of one end of the slot 8. The outer edge of one end of the locking pin 11 is locked on the inner wall of the other end of the slot 8. The other end of the locking pin 11 passes through the slot 8 and extends to the inner side of the sleeve 10. The other end of the locking pin 11 has a bevel. The bevel is located on the inner side of the sleeve 10. One end of the locking pin 11 is connected to the electromagnet 9 through a spring 12.

[0026] Understandably, during use, the drone 1 flies over the top of the cadastral area to be surveyed, and the cadastral surveying instrument 3 performs cadastral surveying work on the area to be surveyed. The drone 1's ease of flight improves the efficiency of cadastral surveying. During cadastral surveying, the motor 7 drives the linkage 4 to rotate. The linkage 4 rotates through the bearing at the bottom of the support sleeve 6 within the lower sleeve 5, thereby driving the cadastral surveying instrument 3 to rotate. Depending on different cadastral surveying needs, different cadastral surveying instruments 3 (such as: ground 3D laser scanner, GNSS receiver (including GPS / BeiDou), RTK equipment (real-time dynamic positioning), total station, etc.) can be selected for surveying. When changing instruments, the electromagnet 9 is activated. Electromagnet 9 attracts latch 11 through magnetic force. Latch 11 compresses spring 12 and moves completely from the inside of sleeve 10 to the inside of slot 8, thereby separating sleeve 6 from lower sleeve 5. Sleeve 6 and link 4 are then pulled downward from the inside of lower sleeve 5. Electromagnet 9 on the cadastral surveying instrument 3 to be replaced is then opened, and latch 11 is attracted to the inside of slot 8 by electromagnet 9. Sleeve 6 on cadastral surveying instrument 3 is then inserted into the inside of lower sleeve 5 until slot 8 and sleeve 10 are aligned. Electromagnet 9 is then closed, and spring 12 pops latch 11 outward from the inside of slot 8, allowing latch 11 to be inserted into the inside of sleeve 10. Latch 11 locks sleeve 6 and lower sleeve 5, enabling quick replacement of different cadastral surveying instruments 3 as needed, thus improving the adaptability of the equipment.

[0027] like Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the upper sleeve 16 is integrally formed on the inner side of the top of the drone 1, the bottom of the upper sleeve 16 is integrally formed on the top of the lower sleeve 5, the outer side of the cover 17 is fastened to the inner wall of the upper sleeve 16, the top of the cover 17 is located on the top of the upper sleeve 16, and the curvature of the top of the cover 17 is the same as that of the top of the drone 1. The side sleeves 18 are integrally formed on the outer side of the bottom of the upper sleeve 16, and the side sleeves 18 are evenly distributed on the upper sleeve 16. The latch 19 is opened at the bottom of the cover 17, and the latch 19 is located on the inner side of the side sleeve 18. The latch 19 corresponds one-to-one with the side sleeve 18. One end of the latch 20 is fastened to the inner side of the side sleeve 18, and the other end of the latch 20 extends to... Inside the bayonet 19, the outer side of the locking post 20 is respectively locked onto the inner wall of the side sleeve 18 and the bayonet 19. One end of the locking post 20 is connected to the inner wall of the side sleeve 18 through spring 21. The gunpowder 23 is adhered to the top of the lower sleeve 5. The ammonium bicarbonate 24 is placed inside the cover 17 and is wrapped around the outer side of the gunpowder 23. The parachute 22 is placed on the top of the inner side of the cover 17. The bottom of the parachute 22 is fixed to the top of the lower sleeve 5 by parachute lines. The parachute lines are buried inside the ammonium bicarbonate 24. The parachute 22 is located on top of the ammonium bicarbonate 24. The igniter 25 is welded to the top of the lower sleeve 5 and is located inside the gunpowder 23.

[0028] Understandably, during use, when the drone 1 malfunctions and crashes, personnel remotely activate the igniter 25. The igniter 25 detonates the gunpowder 23, causing it to explode. This explosion generates high pressure inside the cover 17, which pushes the locking pin 20. The locking pin 20 compresses the spring 21 from inside the latch 19 and moves completely to the inside of the side cover 18, causing the cover 17 to separate from the upper cover 16. Air pressure then pushes the cover 17 upwards. Simultaneously, the high temperature generated by the explosion of the gunpowder 23 causes the ammonium bicarbonate 24 to decompose into two... Carbon dioxide, water vapor, and ammonia can, on the one hand, absorb the heat generated by the explosion of gunpowder 23, preventing high-temperature damage to parachute 22 and parachute lines. On the other hand, the gases generated by the explosion of gunpowder 23 and the decomposition of ammonium bicarbonate 24 can quickly push parachute 22 out and use airflow to open parachute 22, preventing parachute 22 from failing to effectively achieve the purpose of slow descent due to insufficient time to deploy, thereby effectively preventing the crash of UAV 1 and cadastral surveying instrument 3 and ensuring the safety of cadastral surveying instrument 3 and UAV 1.

[0029] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0030] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A cadastral surveying device suitable for field operations, characterized in that, include: Flight assembly and sleeve (13), the flight assembly includes a drone (1) and legs (2), a surveying assembly is installed on the bottom of the drone (1), the surveying assembly includes a cadastral surveying instrument (3) and a chain (4), a fixing assembly is installed on the bottom of the drone (1), the fixing assembly includes a lower sleeve (5) and a clamp (10), a rotating assembly is installed on the inner side of the lower sleeve (5), the rotating assembly includes a motor (7) and a support sleeve (6), a movable assembly is installed on the inner side of the support sleeve (6), the movable assembly includes a slot (8) and an electromagnet (9), a locking assembly is installed on the inner side of the slot (8), the locking assembly includes a pin (11) and a spring (12), a disassembly assembly is installed on the sleeve (13), the disassembly assembly includes a support plate (14) and a notch (15). The storage component includes an upper sleeve (16) and a side sleeve (18). The upper sleeve (16) is installed on the top of the drone (1). A protective component is installed on the inner side of the upper sleeve (16). The protective component includes a cover (17) and a latch (19). An anti-drop component is installed on the inner side of the side sleeve (18). The anti-drop component includes a latch (20) and a second spring (21). A fall arrestor assembly, comprising a parachute (22) and parachute lines, the parachute (22) being mounted inside a cover (17), a pop-out assembly being mounted at the bottom of the parachute (22), the pop-out assembly comprising gunpowder (23) and an igniter (25), and a protective mechanism being mounted at the bottom of the parachute (22), the protective mechanism comprising ammonium bicarbonate (24).

2. The cadastral surveying device suitable for field operations according to claim 1, characterized in that: The outriggers (2) are bolted to the bottom of the drone (1). The outriggers (2) are evenly distributed on the bottom of the drone (1). The lower sleeve (5) is integrally formed on the bottom of the inner side of the drone (1). The connecting ring (4) is bolted to the top of the cadastral surveying instrument (3). The ferrule (10) is integrally formed on the outer side of the lower sleeve (5). The ferrule (10) is evenly distributed around the lower sleeve (5). The ferrule (10) is connected to the inner side of the lower sleeve (5).

3. The cadastral surveying device suitable for field operations according to claim 2, characterized in that: The motor (7) is bolted to the inner wall of the top of the lower sleeve (5). A prism is welded to the output shaft of the motor (7). A groove is provided on the inner wall of the bottom of the ring (4). The groove is fitted on the outer side of the prism. The outer side of the top of the support sleeve (6) is clamped on the inner wall of the top of the lower sleeve (5). The ring (4) is mounted on the outer side of the bottom of the support sleeve (6) by a bearing. The outer side of the top of the ring (4) is close to the inner wall of the lower sleeve (5). The bottom of the ring (4) extends to the outer side of the lower sleeve (5).

4. The cadastral surveying device suitable for field operations according to claim 3, characterized in that: The slot (8) is opened on the inner side of the sleeve (6). The slots (8) are evenly distributed around the sleeve (6). The central axis of the slot (8) coincides with the central axis of the sleeve (10). The slots (8) and sleeves (10) correspond one-to-one. The sleeves (10) are located on the outer side of the slots (8).

5. The cadastral surveying device suitable for field operations according to claim 4, characterized in that: The electromagnet (9) is welded to the inner wall of one end of the slot (8). The outer side of one end of the pin (11) is locked to the inner wall of the other end of the slot (8). The other end of the pin (11) passes through the slot (8) and extends to the inner side of the sleeve (10). The other end of the pin (11) has a bevel. The bevel is located inside the sleeve (10). One end of the pin (11) is connected to the electromagnet (9) through a spring (12).

6. The cadastral surveying device suitable for field operations according to claim 5, characterized in that: The outer diameter of the insert (13) is equal to the inner diameter of the lower sleeve (5). The inner diameter of the insert (13) is equal to the outer diameter of the connecting ring (4) and the support sleeve (6). The support plate (14) is integrally formed at the bottom of the insert (13). An opening is provided on the inner side of the support plate (14). The inner diameter of the opening is equal to the inner diameter of the insert (13). The notch (15) is provided at the top of the insert (13). The number of notches (15) is equal to the number of locking pins (11). The notches (15) are evenly distributed on the insert (13). The width of the notch (15) is greater than the width of the locking pin (11). The length of the insert (13) is greater than the depth of the lower sleeve (5).

7. The cadastral surveying device suitable for field operations according to claim 1, characterized in that: The upper sleeve (16) is integrally formed on the inner side of the top of the drone (1), the bottom of the upper sleeve (16) is integrally formed on the top of the lower sleeve (5), the outer side of the cover (17) is stuck on the inner wall of the upper sleeve (16), the top of the cover (17) is located on the top of the upper sleeve (16), and the top of the cover (17) has the same curvature as the top of the drone (1).

8. The cadastral surveying device for field operations according to claim 7, characterized in that: The side sleeve (18) is integrally formed on the outer side of the bottom of the upper sleeve (16). The side sleeve (18) is evenly distributed on the upper sleeve (16). The snap (19) is opened at the bottom of the cover (17). The snap (19) is located on the inner side of the side sleeve (18). The snap (19) corresponds to the side sleeve (18) one by one.

9. The cadastral surveying device for field operations according to claim 8, characterized in that: One end of the locking pin (20) is locked inside the side sleeve (18), and the other end of the locking pin (20) extends to the inside of the slot (19). The outer side of the locking pin (20) is locked on the inner wall of the side sleeve (18) and the slot (19) respectively. One end of the locking pin (20) is connected to the inner wall of the side sleeve (18) through the second spring (21).

10. The cadastral surveying device for field operations according to claim 9, characterized in that: The gunpowder (23) is attached to the top of the lower sleeve (5), the ammonium bicarbonate (24) is placed inside the sleeve (17), the ammonium bicarbonate (24) is wrapped around the outside of the gunpowder (23), the parachute (22) is placed on the top of the inside of the sleeve (17), the bottom of the parachute (22) is fixed to the top of the lower sleeve (5) by parachute ropes, the parachute ropes are buried inside the ammonium bicarbonate (24), the parachute (22) is located on the top of the ammonium bicarbonate (24), the igniter (25) is welded to the top of the lower sleeve (5), and the igniter (25) is located inside the gunpowder (23).

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