Building house height detection equipment and detection method

Abstract

The invention discloses building house height detection equipment and a detection method, and belongs to the technical field of building house detection, the building house height detection equipment comprises a bottom plate supporting frame, the outer surface of the bottom plate supporting frame is rotatably connected with a connecting plate, the top of the connecting plate is fixedly provided with a laser range finder, and the outer surface of the connecting plate is fixedly provided with an angle sensor; a measuring assembly for detecting the height of a house is arranged on the outer surface of the connecting plate, the laser range finder is located in the measuring assembly, a supporting assembly for enhancing the stability of the connecting plate is arranged on the outer surface of the bottom plate supporting frame, and an angle adjusting assembly for lifting the connecting plate is arranged on the outer surface of the bottom plate supporting frame. Through cooperative use of the laser range finder and the measuring rope, seamless switching between direct measurement of a non-shielding scene and indirect measurement of an obstacle shielding or over-distance scene is realized, and the application scene of the equipment is expanded through cooperation of the two modes.

Description

Technical Field

[0001] The present invention relates to the technical field of building house detection, and more specifically, to a building house height detection device and a detection method. Background Art

[0002] With the acceleration of the urbanization process and the rapid development of the construction industry, the accurate detection of the height of building houses has become increasingly important in engineering quality supervision, urban planning, and safety assessment. Traditional height detection methods mainly rely on manual measurement tools (such as levels and theodolites) or conventional optical instruments, which have problems such as low efficiency, error accumulation, and environmental limitations, and are difficult to meet the requirements of modern building complexity and large-scale detection.

[0003] In the prior art, the publication number is CN114636628A, which discloses a building supervision house exterior wall detection device and method, including an upright frame device. The upright frame device includes an upright board, and both the left and right sides of the upright board are rotatably connected to side frames through bearings. The number of side frames is two, and two square holes one are provided on the front and rear sides of each side frame, and the square holes one are correspondingly opened on the left and right side walls of the upright board. The square holes one are square. Square holes two are opened at the lower ends of the sides of the two side frames facing away from each other. The square holes two are the same as the square holes one, and the heights of the square holes two and the square holes one are flush. Insertion boards are provided on both the left and right sides of the upright board. Insertion columns are fixedly connected to the side of the two insertion boards close to each other at equal intervals and uniformly. Each insertion board includes three insertion columns. This building supervision house exterior wall detection device and method can perform multiple detections on the wall at the same time, which can greatly relieve the labor intensity of the detection workers.

[0004] Although this device has many beneficial effects, there are still the following problems: Although this building exterior wall detection device and method can perform multiple detections on the wall at the same time and can greatly relieve the labor intensity of the detection workers, in the modern measurement field, it cannot be changed according to different measurement environments and can only perform direct measurements in a single way. Direct measurement requires no obstruction between the device and the target. However, in a complex environment, obstacles may block the measurement path, resulting in difficult measurement or inaccurate results. Summary of the Invention

[0005] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a building house height detection device and a detection method, which solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: A building house height detection device, including a bottom plate support frame, the outer surface of the bottom plate support frame is rotatably connected with a connecting plate, the top of the connecting plate is fixedly installed with a laser rangefinder, the outer surface of the connecting plate is fixedly installed with an angle sensor, the outer surface of the connecting plate is provided with a measuring component for detecting the height of the house, the laser rangefinder is located inside the measuring component, the outer surface of the bottom plate support frame is provided with a support component for enhancing the stability of the connecting plate, and the outer surface of the bottom plate support frame is provided with an angle adjustment component for lifting the connecting plate; The measuring component includes two elevation blocks fixedly connected to the top of the connecting plate, the tops of the two elevation blocks are fixedly connected with a connecting block, rectangular grooves are formed in the tops of the two connecting blocks, an installation block is slidably connected inside the two rectangular grooves, the outer surface of the installation block is fixedly connected with a second rotating disk, the outer surface of the elevation block located above is rotatably connected with a first rotating disk, a measuring rope is wound around the outer surface of the first rotating disk, and the other end of the measuring rope is fixedly connected to the outer surface of the second rotating disk.

[0007] Preferably, the measuring component further includes a first bearing seat, a first threaded rod and a first motor. The outer surfaces of the two elevation blocks close to each other are fixedly connected with a first bearing seat, a first threaded rod is rotatably connected between the two first bearing seats, the top of the connecting plate is fixedly installed with a first motor, and the output end of the first motor is fixedly connected to the first threaded rod.

[0008] Preferably, a moving block is threadedly sleeved on the outer surface of the first threaded rod, the moving block is fixedly connected with the installation block, the top of the connecting plate is fixedly installed with a second motor, and the output end of the second motor is fixedly connected to the first rotating disk.

[0009] Preferably, the angle adjustment component includes a pushing cylinder, a telescopic rod, a guide rail and a moving plate. The top of the bottom plate support frame is fixedly installed with a pushing cylinder, the top of the bottom plate support frame is rotatably connected with two telescopic rods, the other ends of the two telescopic rods are rotatably connected to the bottom of the connecting plate, the bottom of the connecting plate is fixedly connected with two guide rails, a moving plate is slidably connected to the outer surfaces of the two guide rails, and the moving plate is rotatably connected to the output end of the pushing cylinder.

[0010] Preferably, the support component includes a base, a second bearing seat, a rotating rod, a connecting rod, a support plate and a connecting seat. A base is fixedly connected between the inner walls on both sides of the bottom plate support frame, a connecting seat is fixedly connected to the center of the base, two symmetrically distributed second bearing seats are fixedly connected to the top of the base, a rotating rod is rotatably connected inside each of the two second bearing seats, a connecting rod is slidably connected inside each of the two rotating rods, and a support plate is rotatably connected to the two connecting rods.

[0011] Preferably, the support assembly further includes a first connecting rod and a second connecting rod. The connecting seat is arranged in a U shape. A first connecting rod is rotatably connected between the inner walls on both sides of the connecting seat. A second connecting rod is rotatably connected inside each of the two first connecting rods. The two second connecting rods are rotatably connected to the outer surfaces on both sides of the support plate.

[0012] Preferably, a second threaded rod is rotatably connected in the area formed between the two first connecting rods and the second connecting rods. A third motor is fixedly installed on the outer surface of the bottom plate support frame. The output end of the third motor is fixedly connected to the second threaded rod. The support plate is in movable contact with the bottom of the connecting plate.

[0013] Preferably, moving wheels with the same structure are fixedly installed at the four corners of the bottom of the bottom plate support frame. A push rod is fixedly installed on the outer surface of the bottom plate support frame.

[0014] Preferably, a PLC controller is fixedly installed on the top of the connecting plate. The angle sensor and the laser rangefinder are wirelessly connected to the PLC controller. The first motor, the second motor, and the third motor are all controlled by the PLC controller.

[0015] A detection method for a building height detection device includes the following steps: S1. Through the four moving wheels at the bottom of the bottom plate support frame, the operator can push the device to a suitable position at the bottom of the building to be measured, adjust the direction of the device using the push rod to ensure that the initial state of the connecting plate is basically aligned with the building facade, turn on the power of the PLC controller, initialize the states of each sensor and motor, the laser rangefinder performs self-check calibration, and the angle sensor is reset to zero. S2. The push cylinder is started, and the moving plate is pushed along the guide rail through the telescopic rod, driving the connecting plate to rotate around its rotating shaft with the bottom plate support frame, realizing the preliminary adjustment of the measurement angle. The angle sensor monitors the inclination angle of the connecting plate in real time and feeds the data back to the PLC controller. The third motor drives the second threaded rod to rotate, drives the first connecting rod and the second connecting rod to move through screw transmission, and then pushes the support plate to slide along the rotating rod. The support plate supports the bottom of the connecting plate from both sides, forming a triangular stable support structure to enhance the stability of the device during high-angle measurement. S3. The first motor drives the first threaded rod to rotate, driving the moving block to move along the threaded rod, adjusting the horizontal positions of the mounting block and the laser rangefinder, aligning the laser beam with the feature points on the roof of the house. The laser rangefinder emits laser pulses to measure the straight-line distance to the roof of the house, and the data is transmitted to the PLC controller in real time. When the laser rangefinder cannot directly measure due to obstacle occlusion or measurement distance limitation, the second motor is started to drive the first rotating disk to rotate, releasing the measuring rope. The measuring rope drives the mounting block to move through the second rotating disk. When the end of the measuring rope touches the roof of the house, the first motor locks the position, and the PLC controller records the rotation angle of the first threaded rod and the released length of the measuring rope at this time. The PLC controller calculates the height of the house according to the following formula.

[0016] Compared with the prior art, the present invention provides a building house height detection device and a detection method, which have the following beneficial effects: This building house height detection device and detection method, through the coordinated use of a laser rangefinder and a measuring rope, realize seamless switching between direct measurement in an unobstructed scenario and indirect measurement in an obstacle-occluded or over-distance scenario. The cooperation of the two modes expands the applicable scenarios of the device, and the seamless switching of the two modes reduces measurement interruption caused by environmental limitations and improves measurement efficiency. In a complex environment, the device can automatically select the measurement mode without manual intervention. The multi-mode switching enhances the flexibility of the device and meets the measurement requirements in different fields.

[0017] The laser rangefinder provides high-precision measurement in an unobstructed scenario, while the measuring rope maintains measurement accuracy in an occluded or over-distance scenario through indirect measurement combined with a geometric compensation algorithm.

[0018] This building house height detection device and detection method, with a single device having multiple measurement modes, reduces the costs brought by the procurement and maintenance of multiple devices, improves the utilization rate of the device, and has a higher cost performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a side view of the structure of the present invention; Figure 3 is a schematic structural diagram of the measurement component of the present invention; Figure 4 is a partial structural cross-sectional view of the present invention; Figure 5 is the present invention Figure 1 The enlarged view of the structure at A in; Figure 6 is the present invention Figure 1 The enlarged view of the structure at B in; Figure 7 is the present invention Figure 2 The enlarged view of the structure at C in; Figure 8 This is a schematic structural diagram of the laser rangefinder of the present invention.

[0020] In the figure: 1. Bottom plate support frame; 2. Connecting plate; 3. Push rod; 4. Moving wheel; 5. Angle adjustment component; 501. Pushing cylinder; 502. Telescopic rod; 503. Guide rail; 504. Moving plate; 6. Measuring component; 601. Connecting block; 602. First bearing seat; 603. First threaded rod; 604. First motor; 605. Second motor; 606. First rotating disk; 607. Moving block; 608. Mounting block; 609. Second rotating disk; 610. Measuring rope; 611. Rectangular groove; 7. PLC controller; 8. Lifting block; 9. Support component; 901. Third motor; 902. Second threaded rod; 903. Base; 904. Second bearing seat; 905. Rotating rod; 906. Connecting rod; 907. Support plate; 908. First connecting rod; 909. Second connecting rod; 910. Connecting seat; 10. Angle sensor; 11. Laser rangefinder. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-8 , the present invention provides a technical solution: Embodiment 1

[0023] A building height detection device and detection method, including a bottom plate support frame 1, the outer surface of the bottom plate support frame 1 is rotatably connected with a connecting plate 2, the top of the connecting plate 2 is fixedly installed with a laser rangefinder 11, the outer surface of the connecting plate 2 is fixedly installed with an angle sensor 10, the outer surface of the connecting plate 2 is provided with a measuring component 6 for detecting the height of the building, the laser rangefinder 11 is located inside the measuring component 6, the outer surface of the bottom plate support frame 1 is provided with a support component 9 for enhancing the stability of the connecting plate 2, and the outer surface of the bottom plate support frame 1 is provided with an angle adjustment component 5 for lifting the connecting plate 2; The measuring assembly 6 includes two elevation blocks 8 fixedly connected to the top of the connecting plate 2. A connecting block 601 is fixedly connected to the top of the two elevation blocks 8. Rectangular grooves 611 are formed in the tops of the two connecting blocks 601. An installation block 608 is slidably connected inside the two rectangular grooves 611. A second rotating disk 609 is fixedly connected to the outer surface of the installation block 608. A first rotating disk 606 is rotatably connected to the outer surface of the upper elevation block 8. A measuring rope 610 is wound around the outer surface of the first rotating disk 606. The other end of the measuring rope 610 is fixedly connected to the outer surface of the second rotating disk 609.

[0024] The measuring assembly 6 further includes a first bearing block 602, a first threaded rod 603, and a first motor 604. First bearing blocks 602 are fixedly connected to the adjacent outer surfaces of the two elevation blocks 8. A first threaded rod 603 is rotatably connected between the two first bearing blocks 602. A first motor 604 is fixedly installed on the top of the connecting plate 2. The output end of the first motor 604 is fixedly connected to the first threaded rod 603.

[0025] A moving block 607 is threadedly sleeved on the outer surface of the first threaded rod 603. The moving block 607 is fixedly connected to the installation block 608. A second motor 605 is fixedly installed on the top of the connecting plate 2. The output end of the second motor 605 is fixedly connected to the first rotating disk 606.

[0026] The first motor 604 drives the first threaded rod 603 to rotate. The moving block 607 drives the laser rangefinder 11 to move horizontally. The laser rangefinder 11 emits 1550nm pulsed laser. The distance is calculated by the time difference method. When the laser signal is blocked, the second motor 605 drives the first rotating disk 606 to rotate. The measuring rope 610 is made of Kevlar. The released length of the measuring rope is monitored by an optical encoder. Combining with the rotation angle of the first threaded rod 603, a spatial coordinate model is established. The laser rangefinder 11 measures the straight-line distance L, and the angle sensor 10 measures the inclination angle θ. The height H of the house is H = L×sinθ. Embodiment 2

[0027] The angle adjustment assembly 5 includes a pushing cylinder 501, a telescopic rod 502, a guide rail 503, and a moving plate 504. The pushing cylinder 501 is fixedly installed on the top of the bottom plate support frame 1. Two telescopic rods 502 are rotatably connected to the top of the bottom plate support frame 1. The other ends of the two telescopic rods 502 are rotatably connected to the bottom of the connecting plate 2. Two guide rails 503 are fixedly connected to the bottom of the connecting plate 2. A moving plate 504 is slidably connected to the outer surfaces of the two guide rails 503. The moving plate 504 is rotatably connected to the output end of the pushing cylinder 501.

[0028] When the laser rangefinder 11 cannot directly measure due to obstacle occlusion or measurement distance limitation, the push cylinder 501 is activated, and the moving plate 504 is pushed along the guide rail 503 through the telescopic rod 502, driving the connecting plate 2 to rotate around its rotating shaft with the bottom plate support frame 1, realizing the preliminary adjustment of the measurement angle. The angle sensor 10 monitors the inclination angle of the connecting plate 2 in real time and feeds the data back to the PLC controller 7. The first motor 604 drives the first threaded rod 603 to rotate, driving the moving block 607 to move along the threaded rod, adjusting the horizontal position of the mounting block 608 and the laser rangefinder 11, so that the laser beam is aligned with the feature point on the top of the house. The laser rangefinder 11 emits laser pulses to measure the straight-line distance to the top of the house, and the data is transmitted to the PLC controller 7 in real time. The second motor 605 is started to drive the first rotating disk 606 to rotate, releasing the measuring rope 610. The measuring rope 610 drives the mounting block 608 to move through the second rotating disk 609. When the end of the measuring rope touches the top of the house, the first motor 604 locks the position, and the PLC controller 7 records the rotation angle of the first threaded rod 603 and the release length of the measuring rope 610 at this time. Indirect measurement mode: H = L×cosθ + ΔL×sinα (ΔL is the release length of the measuring rope, and α is the angle between the measuring rope and the vertical direction). Embodiment 3

[0029] The support assembly 9 includes a base 903, a second bearing seat 904, a rotating rod 905, a connecting rod 906, a support plate 907, and a connecting seat 910. The base 903 is fixedly connected between the inner walls on both sides of the bottom plate support frame 1. The connecting seat 910 is fixedly connected to the center of the base 903. Two symmetrically distributed second bearing seats 904 are fixedly connected to the top of the base 903. The rotating rod 905 is rotatably connected inside both second bearing seats 904. The connecting rod 906 is slidably connected inside both rotating rods 905. The two connecting rods 906 are rotatably connected to the support plate 907.

[0030] The support assembly 9 further includes a first connecting rod 908 and a second connecting rod 909. The connecting seat 910 is arranged in a U shape. The first connecting rod 908 is rotatably connected between the inner walls on both sides of the connecting seat 910. The second connecting rod 909 is rotatably connected inside both first connecting rods 908. The two second connecting rods 909 are rotatably connected to the outer surfaces on both sides of the support plate 907.

[0031] The second threaded rod 902 is rotatably connected within the area formed between the two first connecting rods 908 and the second connecting rod 909. The third motor 901 is fixedly installed on the outer surface of the bottom plate support frame 1, and the output end of the third motor 901 is fixedly connected to the second threaded rod 902. The support plate 907 is in movable contact with the bottom of the connecting plate 2.

[0032] Movable wheels 4 with the same structure are fixedly installed at the four corners of the bottom of the bottom plate support frame 1, and a push rod 3 is fixedly installed on the outer surface of the bottom plate support frame 1.

[0033] A PLC controller 7 is fixedly installed at the top of the connecting plate 2. The angle sensor 10 and the laser rangefinder 11 are wirelessly connected to the PLC controller 7. The first motor 604, the second motor 605, and the third motor 901 are all controlled by the PLC controller 7.

[0034] The device is moved to the bottom of the house through the moving wheels 4. The push rod 3 assists in adjusting the orientation of the device to ensure that the initial direction of the connecting plate 2 is aligned with the facade of the house. The PLC controller 7 starts a self-check program. The laser rangefinder 11 emits a self-check pulse, compensates for the influence of environmental factors such as temperature and air pressure through a built-in calibration algorithm. The support plate 907 slides along the rotating rod 905 to form a variable triangular support structure, and the contact surface uses a high-friction material.

[0035] A detection method for a building house height detection device includes the following steps: S1. Through the four moving wheels 4 at the bottom of the bottom plate support frame 1, the operator can push the device to a suitable position at the bottom of the house to be measured, use the push rod 3 to adjust the direction of the device to ensure that the initial state of the connecting plate 2 is basically aligned with the facade of the house, turn on the power of the PLC controller 7, initialize the states of each sensor and motor, the laser rangefinder 11 performs self-check calibration, and the angle sensor 10 is reset to zero. S2. The push cylinder 501 is activated, and the moving plate 504 is pushed along the guide rail 503 through the telescopic rod 502, driving the connecting plate 2 to rotate around its rotating shaft with the bottom plate support frame 1 to achieve a preliminary adjustment of the measurement angle. The angle sensor 10 monitors the inclination angle of the connecting plate 2 in real time and feeds the data back to the PLC controller 7. The third motor 901 drives the second threaded rod 902 to rotate, drives the first connecting rod 908 and the second connecting rod 909 to move through screw transmission, and then pushes the support plate 907 to slide along the rotating rod 905. The support plate 907 supports the bottom of the connecting plate 2 from both sides to form a triangular stable support structure, enhancing the stability of the device during high-angle measurement. S3. The first motor 604 drives the first threaded rod 603 to rotate, drives the moving block 607 to move along the threaded rod, adjusts the horizontal position of the mounting block 608 and the laser rangefinder 11, aligns the laser beam with the feature point at the top of the house. The laser rangefinder 11 emits a laser pulse to measure the straight-line distance to the top of the house, and the data is transmitted to the PLC controller 7 in real time. When the laser rangefinder 11 cannot directly measure due to obstacle occlusion or measurement distance limitation, the second motor 605 is activated to drive the first rotating disk 606 to rotate, release the measuring rope 610. The measuring rope 610 drives the mounting block 608 to move through the second rotating disk 609. When the end of the measuring rope touches the top of the house, the first motor 604 locks the position. The PLC controller 7 records the rotation angle of the first threaded rod 603 and the release length of the measuring rope 610 at this time. The PLC controller 7 calculates the height of the house according to the following formula.

[0036] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present invention, which are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and all these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A building height detection device, comprising a base plate support frame (1), characterized in that: The outer surface of the base plate support frame (1) is rotatably connected to a connecting plate (2), a laser rangefinder (11) is fixedly mounted on the top of the connecting plate (2), an angle sensor (10) is fixedly mounted on the outer surface of the connecting plate (2), a measuring component (6) for detecting the height of a building is provided on the outer surface of the connecting plate (2), the laser rangefinder (11) is located inside the measuring component (6), a supporting component (9) for enhancing the stability of the connecting plate (2) is provided on the outer surface of the base plate support frame (1), and an angle adjustment component (5) for lifting the connecting plate (2) is provided on the outer surface of the base plate support frame (1); The measuring assembly (6) comprises two padding blocks (8) fixedly connected to the top of the connecting plate (2); the tops of the two padding blocks (8) are fixedly connected to connecting blocks (601); the tops of the two connecting blocks (601) are each provided with a rectangular groove (611); the interiors of the two rectangular grooves (611) are slidably connected to mounting blocks (608); the outer surfaces of the mounting blocks (608) are fixedly connected to a second rotating disk (609); the outer surfaces of the padding blocks (8) located above are rotatably connected to a first rotating disk (606); the outer surface of the first rotating disk (606) is wound with a measuring rope (610); the other end of the measuring rope (610) is fixedly connected to the outer surface of the second rotating disk (609).

2. A building height detection device according to claim 1, characterized in that: The measuring assembly (6) further comprises a first bearing seat (602), a first threaded rod (603) and a first motor (604); the adjacent outer surfaces of the two raising blocks (8) are fixedly connected to the first bearing seat (602); the first threaded rod (603) is rotatably connected between the two first bearing seats (602); the first motor (604) is fixedly mounted on the top of the connecting plate (2); and the output end of the first motor (604) is fixedly connected to the first threaded rod (603).

3. A building height detection device according to claim 2, characterized in that: A moving block (607) is threadedly sleeved on the outer surface of the first threaded rod (603), the moving block (607) is fixedly connected to the mounting block (608), a second motor (605) is fixedly mounted on the top of the connecting plate (2), and an output end of the second motor (605) is fixedly connected to the first rotating disk (606).

4. A building height detection device according to claim 3, characterized in that: The angle adjustment assembly (5) comprises a pushing cylinder (501), a telescopic rod (502), a guide rail (503) and a movable plate (504); the pushing cylinder (501) is fixedly mounted on the top of the base plate support frame (1); the top of the base plate support frame (1) is rotatably connected to two telescopic rods (502); the other ends of the two telescopic rods (502) are rotatably connected to the bottom of the connecting plate (2); the bottom of the connecting plate (2) is fixedly connected to two guide rails (503); the outer surfaces of the two guide rails (503) are slidably connected to the movable plate (504); the movable plate (504) is rotatably connected to the output end of the pushing cylinder (501).

5. A building height detection device according to claim 4, characterized in that: The support assembly (9) comprises a base (903), a second bearing seat (904), a rotating rod (905), a connecting rod (906), a support plate (907) and a connecting seat (910); the base (903) is fixedly connected between the inner walls on both sides of the bottom plate support frame (1); the connecting seat (910) is fixedly connected at the center of the base (903); the top of the base (903) is fixedly connected to two symmetrically distributed second bearing seats (904); the interiors of the two second bearing seats (904) are both rotatably connected to the rotating rods (905); the interiors of the two rotating rods (905) are both slidably connected to the connecting rods (906); and the two connecting rods (906) are rotatably connected to the support plate (907).

6. A building height detection device according to claim 5, characterized in that: The support assembly (9) further comprises a first connecting rod (908) and a second connecting rod (909); the connecting seat (910) is arranged in a U shape; the first connecting rod (908) is rotatably connected between the inner walls on both sides of the connecting seat (910); the interiors of the two first connecting rods (908) are rotatably connected to the second connecting rods (909); and the two second connecting rods (909) are rotatably connected to the outer surfaces on both sides of the support plate (907).

7. A building height detection device according to claim 6, characterized in that: A second threaded rod (902) is rotatably connected in an area formed between the two first connecting rods (908) and the second connecting rod (909), a third motor (901) is fixedly mounted on the outer surface of the bottom plate support frame (1), an output end of the third motor (901) is fixedly connected to the second threaded rod (902), and the support plate (907) is in movable contact with the bottom of the connecting plate (2).

8. A building height detection device according to claim 7, characterized in that: Moving wheels (4) with the same structure are fixedly mounted at the four corners of the bottom of the base support frame (1), and a push rod (3) is fixedly mounted on the outer surface of the base support frame (1).

9. A building height detection device according to claim 8, characterized in that: A PLC controller (7) is fixedly mounted on the top of the connecting plate (2); the angle sensor (10) and the laser rangefinder (11) are wirelessly connected to the PLC controller (7); and the first motor (604), the second motor (605) and the third motor (901) are all controlled by the PLC controller (7).

10. A detection method for building height detection equipment according to claim 9, characterized in that: The following steps are involved: S1. The operator can push the device to a suitable position at the bottom of the house to be tested through the four moving wheels (4) at the bottom of the base support frame (1), and use the push rod (3) to adjust the direction of the device to ensure that the connecting plate (2) is basically aligned with the facade of the house in the initial state, turn on the power of the PLC controller (7), initialize the states of each sensor and motor, perform self-test calibration on the laser rangefinder (11), and reset the angle sensor (10) to zero; S2, the push cylinder (501) is started, and the mobile plate (504) is pushed to slide along the guide rail (503) through the telescopic rod (502), driving the connecting plate (2) to rotate around the rotating axis between the connecting plate (2) and the bottom plate support frame (1), so as to achieve preliminary adjustment of the measuring angle. The angle sensor (10) monitors the tilt angle of the connecting plate (2) in real time and feeds back the data to the PLC controller (7). The third motor (901) drives the second threaded rod (902) to rotate, and drives the first connecting rod (908) and the second connecting rod (909) to move through the threaded transmission, thereby driving the supporting plate (907) to slide along the rotating rod (905). The supporting plate (907) lifts the bottom of the connecting plate (2) from both sides to form a triangular stable supporting structure, thereby enhancing the stability of the device during high-angle measurement; S3, the first motor (604) drives the first threaded rod (603) to rotate, driving the moving block (607) to move along the threaded rod, adjusting the horizontal positions of the mounting block (608) and the laser rangefinder (11) so that the laser beam is aligned with the characteristic point on the top of the house, the laser rangefinder (11) emits laser pulses to measure the straight-line distance to the top of the house, and the data is transmitted to the PLC controller (7) in real time. When the laser rangefinder (11) cannot directly measure due to being blocked by obstacles or the measurement distance is limited, the second motor (605) is started to drive the first rotating disk (606) to rotate, and the measuring rope (610) is released. The measuring rope (610) drives the mounting block (608) to move through the second rotating disk (609). When the end of the measuring rope contacts the top of the house, the first motor (604) is locked in position, and the PLC controller (7) records the rotation angle of the first threaded rod (603) and the released length of the measuring rope (610) at this time. The PLC controller (7) calculates the height of the house according to the following formula.

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