High-altitude operation safety monitoring device and method

Abstract

The invention discloses a high-altitude operation safety monitoring device and method, and belongs to the technical field of safety management and control. The invention discloses a high-altitude operation safety monitoring device and method, and the device comprises a plurality of installation frames which form a closed space, preferably a rectangular closed space; the vertical scanning assembly and the horizontal scanning assembly are both mounted on the mounting racks, the vertical scanning assembly is used for performing degree scanning on a vertical plane between two adjacent mounting racks, and the horizontal scanning assembly is used for performing degree scanning on a horizontal plane at the tops of the mounting racks, so that blocking detection of the working space is realized. And the alarm assembly is used for receiving the electric signals of the vertical scanning assembly and the horizontal scanning assembly and giving an alarm when an illegal behavior is found.

Description

Technical Field

[0001] The present invention relates to the field of safety management and control technology, and more specifically, to a high-altitude operation safety monitoring device and method. Background Art

[0002] When performing aerial work in a substation, it is extremely important to ensure the safety of the work vehicle and workers. By setting up a virtual electronic fence in the substation, when the work vehicle bucket arm or workers exceed the preset safe working area, the system can monitor in real time and trigger an audible and visual alarm to remind the workers to take timely measures.

[0003] After searching, the patent document with the existing publication number CN111882798A provides a three-dimensional electronic fence. The device uses positioning means to calculate the distance between the live equipment and the aerial bucket truck. When the safety distance is not met, an alarm is issued to indicate that the distance is insufficient. This can effectively prevent the equipment from discharging and tripping due to insufficient distance from the live equipment or due to mistakenly entering the live interval during high-altitude operations, and has safety benefits.

[0004] The distance between the electrical equipment and the aerial bucket truck is calculated by positioning means, which is easily affected by external obstacles, affecting the positioning accuracy and failing to provide effective safety protection for the bucket arm of the working vehicle or the operating personnel. In view of this, we propose a high-altitude operation safety monitoring device and method. Summary of the invention

[0005] 1. Technical problems to be solved

[0006] The purpose of the present invention is to provide a high-altitude operation safety monitoring device and method to solve the problems raised in the above background technology.

[0007] 2. Technical solution

[0008] The present invention is achieved through the following technical solutions:

[0009] A high-altitude operation safety monitoring device and method, comprising:

[0010] A mounting frame, wherein a plurality of mounting frames are provided, and the plurality of mounting frames enclose a closed space;

[0011] A vertical scanning assembly, the vertical scanning assembly is mounted on a mounting frame, the vertical scanning assembly includes a first laser ranging sensor, the first laser ranging sensor can rotate in the vertical direction, two sets of vertical scanning assemblies are mounted on any of the mounting frames, and the first laser ranging sensors in the two sets of vertical scanning assemblies on the same mounting frame are respectively oriented toward two adjacent mounting frames;

[0012] A horizontal scanning assembly, wherein the horizontal scanning assembly is mounted on a mounting frame, the horizontal scanning assembly comprises a second laser ranging sensor, the second laser ranging sensor can rotate horizontally, one horizontal scanning assembly is mounted on any of the mounting frames, and four of the second laser ranging sensors are all oriented toward their adjacent second laser ranging sensors in the same direction;

[0013] The alarm component is used to receive signals from the first laser ranging sensor and the second laser ranging sensor, perform logic operations on the received signals, and control the alarm behavior according to the results of the logic operations.

[0014] As an optional solution of the technical solution of the present application document, the vertical scanning assembly further includes a first pan / tilt platform, a first transmission mechanism and a first stepper motor;

[0015] The first gimbal is rotatably mounted on the mounting frame, the first stepper motor is fixedly mounted on the mounting frame, multiple first gimbals are provided for each of the first laser ranging sensor and the first gimbal, and the multiple first gimbals are arranged in a stepped manner. The first laser ranging sensor is fixedly mounted on the first gimbal, and the first stepper motor can drive the multiple first gimbals to rotate synchronously in the vertical direction through the first transmission mechanism.

[0016] As an optional solution of the technical solution of this application document, the horizontal scanning component also includes a second pan-tilt platform and a second stepping motor;

[0017] The second laser ranging sensor is installed on the second pan-tilt platform, the second stepping motor is fixedly installed on the mounting frame, and the second stepping motor is used to drive the second pan-tilt platform to rotate horizontally.

[0018] As an optional solution of the technical solution of the present application document, the first transmission mechanism includes: a first driving sprocket, a first driven sprocket, and a first driven chain. The first driving sprocket is connected and fixed to the output end of the first stepper motor, the first driven sprocket is connected and fixed to the first pan-tilt head, and the first driving sprocket and the first driven sprocket are both meshed and connected with the first driven chain.

[0019] As an optional solution to the technical solution of the present application document, the vertical scanning assembly also includes a vertical calibration structure, which includes a first surveying and mapping prism, a detachable operating handle, and a mechanical connecting rod; the first surveying and mapping prism is fixedly connected to the mechanical connecting rod, the mechanical connecting rod is rotatably connected to the mounting frame, the detachable operating handle is meshedly connected to the mechanical connecting rod through a transmission gear set, and the mechanical connecting rod is transmission-connected to the first gimbal through a sprocket chain.

[0020] As an optional solution of the technical solution of the present application document, a vertical adjustment part is installed on the second pan-tilt platform, and the second laser ranging sensor is installed on the second pan-tilt platform through the vertical adjustment part. The vertical adjustment part is used to drive the second laser ranging sensor to rotate in the vertical direction, and a second surveying prism is fixedly installed on the vertical adjustment part.

[0021] As an optional solution of the technical solution of this application document, the mounting frame includes a lifting section, a third stepping motor, and a lifting transmission rod;

[0022] There are multiple lifting sections, and the sizes of the multiple lifting sections increase from the inside to the outside. Two adjacent lifting sections are snap-fitted together. The third stepper motor is used to drive the lifting transmission rod to extend and retract, and the transmission rod is extended and retracted to support the lifting section upward.

[0023] A method for monitoring the safety of aerial work, including a width monitoring method, wherein the width monitoring method comprises the following steps:

[0024] A1, controlling a plurality of first laser ranging sensors to cyclically rotate at a specified speed within a range of degrees from horizontal to vertical directions;

[0025] A2, acquiring detection data of a plurality of first laser ranging sensors between two adjacent mounting frames;

[0026] A3. When the detection data of two or more first laser ranging sensors between two adjacent mounting frames are less than the set threshold, a width over-limit alarm is issued;

[0027] A4. When, among the multiple first laser ranging sensors between two adjacent mounting frames, there is a first laser ranging sensor whose detection data is less than a set distance threshold for a duration greater than a set time threshold, a width limit exceeding alarm is issued.

[0028] As an optional solution of the technical solution of this application document, a height monitoring method is also included, and the height monitoring method includes the following steps:

[0029] B1, controlling the plurality of second laser ranging sensors to rotate horizontally and cyclically between two adjacent mounting frames on the left and right at a specified speed;

[0030] B2. When the detection data of any two second laser ranging sensors are less than the set distance threshold, an altitude limit-crossing alarm is issued;

[0031] B3. When the detection data of a second laser ranging sensor is less than the set distance threshold for a duration greater than the set time threshold, an altitude limit-crossing alarm is issued.

[0032] As an optional solution of the technical solution of the present application document, the number of the second laser ranging sensors is four, the four second laser ranging sensors are arranged in a rectangular shape, the rotation angular velocity of the second laser ranging sensor is 9 degrees per second, and the time threshold is 2s.

[0033] 3. Beneficial effects

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present application arranges a plurality of first laser ranging sensors on a mounting frame, and utilizes the first laser ranging sensors to rotate in a vertical plane to detect the vertical plane between adjacent mounting frames. When the bucket arm of the operating vehicle or the operating personnel exceeds the preset safe operating area, the first laser ranging sensor can quickly capture the abnormal behavior and issue an alarm in time to avoid the occurrence of safety accidents.

[0036] 2. This application realizes the detection of the horizontal blockade area by setting a second laser ranging sensor on the top of the mounting frame and using the second laser ranging sensor to perform cyclic scanning in the horizontal plane. When the bucket arm of the operating vehicle or the operating personnel exceed the preset safe operating area, the second laser ranging sensor can quickly capture the abnormal behavior and issue an alarm in time to avoid the occurrence of safety accidents.

[0037] 3. The present application forms a rectangular enclosed space by enclosing the mounting frame, and utilizes the second laser ranging sensor to reciprocate within a range of 90 degrees. When one of the second laser ranging sensors completes a scanning cycle, it can scan the blocked plane 8 times, thereby reducing the detection blind area and increasing the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the structure of a vertical scanning component of a high-altitude work safety monitoring device;

[0039] Figure 2 It is a schematic diagram of the vertical calibration structure of a safety monitoring device for aerial work;

[0040] Figure 3 It is a schematic diagram of the installation structure of the vertical scanning component of a high-altitude work safety monitoring device;

[0041] Figure 4 It is a schematic diagram of the arrangement structure of the horizontal scanning components of a high-altitude work safety monitoring device;

[0042] Figure 5 It is a top view of the structure of the horizontal scanning component of a high-altitude work safety monitoring device;

[0043] Figure 6It is a side chamber diagram of the structure of the horizontal scanning component of a high-altitude work safety monitoring device;

[0044] Figure 7 It is a schematic diagram of the bottom structure of a mounting frame of a high-altitude work safety monitoring device;

[0045] Figure 8 It is a schematic diagram of the storage state of the mounting frame structure of the aerial work safety monitoring device;

[0046] Fig. 9 It is a schematic diagram of the unfolded state of the mounting frame structure of the aerial work safety monitoring device;

[0047] Fig.10 It is a schematic diagram of the lifting section structure of a high-altitude operation safety monitoring device;

[0048] In the figure: 1. mounting frame; 101. lifting section; 1012. buckle pile; 1013. elastic element; 1014. electromagnet; 1015. adjustment knob; 102. third stepping motor; 103. lifting transmission rod; 104. driving wheel; 105. universal wheel; 106. physical warning line; 2. vertical scanning assembly; 201. first laser ranging sensor; 202. first pan-tilt; 203. first transmission mechanism; 2031. first Driving sprocket; 2032, first driven sprocket; 2033, first driven chain; 204, first stepper motor; 205, vertical calibration structure; 2051, first surveying prism; 2052, detachable operating handle; 2053, mechanical connecting rod; 3, horizontal scanning assembly; 301, second laser ranging sensor; 302, second gimbal; 3021, vertical adjustment unit; 3022, second surveying prism; 303, second stepper motor. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0050] Embodiment 1:

[0051] The present invention provides a high-altitude operation safety monitoring device, comprising: a mounting frame 1, a vertical scanning component 2, a horizontal scanning component 3 and an alarm component.

[0052] There are multiple mounting frames 1, preferably four mounting frames 1, and the four mounting frames 1 enclose a closed space, preferably a rectangular closed space; the vertical scanning component 2 and the horizontal scanning component 3 are both installed on the mounting frame 1, the vertical scanning component 2 is used to perform a 90-degree scan on the vertical plane between two adjacent mounting frames 1, and the horizontal scanning component 3 is used to perform a 90-degree scan on the horizontal plane on the top of the mounting frame 1 to achieve blockade detection of the workspace. The alarm component is used to receive electrical signals from the vertical scanning component 2 and the horizontal scanning component 3, and issue an alarm when a violation is found.

[0053] like Figure 3 As shown, the vertical scanning assembly 2 includes a first laser ranging sensor 201, which can rotate in the vertical direction. Two sets of vertical scanning assemblies are installed on any mounting frame 1. The first laser ranging sensors 201 in the two sets of vertical scanning assemblies 2 located on the same mounting frame 1 are respectively facing two adjacent mounting frames 1, and a physical warning line 106 is provided between the two adjacent mounting frames 1.

[0054] like Figure 1 As shown, the vertical scanning assembly 2 also includes a first pan-tilt platform 202, a first transmission mechanism 203 and a first stepper motor 204; the first pan-tilt platform 202 is rotatably mounted on the mounting frame 1, the first stepper motor 204 is fixedly mounted on the mounting frame 1, a plurality of first laser ranging sensors 201 and a plurality of first pan-tilt platforms 202 are provided, and the plurality of first pan-tilt platforms 202 are arranged in a stepped manner, the first laser ranging sensor 201 is fixedly mounted on the first pan-tilt platform 202, and the first stepper motor 204 can drive the plurality of first pan-tilt platforms 202 to rotate synchronously in the vertical direction through the first transmission mechanism 203.

[0055] The first transmission mechanism 203 includes: a first driving sprocket 2031, a first driven sprocket 2032, and a first driven chain 2033. The first driving sprocket 2031 is fixedly connected to the output end of the first stepper motor 204, the first driven sprocket 2032 is fixedly connected to the first pan-tilt platform 202, and the first driving sprocket 2031 and the first driven sprocket 2032 are both meshedly connected with the first driven chain 2033.

[0056] The control mechanism controls the first stepper motor 204, utilizes the first active sprocket 2031, the first driven sprocket 2032, and the first driven chain 2033 to drive the first pan-tilt platform 202 to reciprocate in the vertical direction, and utilizes the first laser ranging sensor 201 to perform blockade detection in the vertical direction.

[0057] like Figure 2As shown, the vertical scanning assembly 2 also includes a vertical calibration structure 205, which includes a first surveying prism 2051, a detachable operating handle 2052, and a mechanical connecting rod 2053; the surveying prism is connected and fixed to the mechanical connecting rod 2053, the mechanical connecting rod 2053 is rotatably installed on the mounting frame 1, the detachable operating handle 2052 is meshed and connected to the mechanical connecting rod 2053 through a transmission gear set, and the mechanical connecting rod 2053 is transmission-connected to the first gimbal 202 through a sprocket chain.

[0058] The first surveying prism 2051 is used as an observation mirror for calibrating the angle, and a calibration reference point is set on the opposite mounting frame 1. The detachable operating handle 2052 is used to drive the mechanical connecting rod 2053, and then the sprocket chain drives the multiple first pan-tilt platforms 202 to rotate in the horizontal direction. When the calibration reference point is located at the center point of the first surveying prism 2051, it is considered that the angle has been adjusted in place; the subsequent first laser ranging sensor 201 performs a cyclic scan in the vertical direction, and scans based on this initial angle.

[0059] like Figure 4 As shown, the horizontal scanning assembly 3 includes a second laser ranging sensor 301, which can rotate horizontally. A horizontal scanning assembly 3 is installed on any mounting frame 1, and the four second laser ranging sensors 301 are all facing their adjacent second laser ranging sensors 301 in the same direction.

[0060] like Figure 5 and Figure 6 As shown, the horizontal scanning component 3 also includes a second pan-tilt platform 302 and a second stepper motor 303; the second laser ranging sensor 301 is installed on the second pan-tilt platform 302, the second stepper motor 303 is fixedly installed on the mounting frame 1, and the second stepper motor 303 is used to drive the second pan-tilt platform 302 to rotate horizontally; a vertical adjustment part 3021 is installed on the second pan-tilt platform 302, the second laser ranging sensor 301 is installed on the second pan-tilt platform 302 through the vertical adjustment part 3021, the vertical adjustment part 3021 is used to drive the second laser ranging sensor 301 to rotate in the vertical direction, and a second surveying prism 3022 is fixedly installed on the vertical adjustment part 3021.

[0061] In order to avoid the horizontal problem of the ground environment, which causes the second laser ranging sensor 301 to have a monitoring blind spot in the horizontal scanning at high altitude, the horizontal scanning system on the top of the mounting frame 1 is first calibrated with the initial horizontal angle through the vertical adjustment part 3021 and the second mapping prism 3022. By rotating the adjustment knob on the vertical adjustment part 3021, the calibration point appears at the center of the picture of the second mapping prism 3022, and the horizontal angle calibration is considered to be successful. The calibration point can be a calibration point set on an adjacent mounting frame 1, or a calibration point on any mounting frame 1. After the vertical angle adjustment is completed, the control mechanism can be used to enter the horizontal scanning initial angle calibration mode, and the second stepper motor 303 is started. Under the transmission action of the second stepper motor 303, the second pan-tilt 302 rotates synchronously in the horizontal direction. When the second mapping prism 3022 observes that the reference point is at the center point, it is considered that the initial horizontal angle has been adjusted in place. The subsequent second laser ranging sensor 301 performs a circular scan in the horizontal direction, and scans with this initial angle as the reference.

[0062] The alarm component is used to receive signals from the first laser ranging sensor 201 and the second laser ranging sensor 301, perform logic operations on the received signals, and control the alarm behavior according to the results of the logic operations.

[0063] like Figure 7 As shown, two fourth stepper motors are installed at the bottom of the mounting frame 1, and each fourth stepper motor output end is drivingly connected to a driving wheel 104, which is rotatably installed at the bottom of the mounting frame 1. A universal wheel 105 is also installed at the bottom of the mounting frame 1.

[0064] The fourth stepper motor can drive the driving wheel 104 to rotate, thereby moving the mounting frame 1 , and the universal wheel 105 is used as a steering and balancing aid.

[0065] During operation, the control mechanism issues a movement direction command to drive the fourth stepper motor to move, and the speed difference between the two fourth stepper motors is used as the steering power to achieve differential steering. After reaching the predetermined position, the fourth stepper motor is locked to fix the mounting bracket 1 at the specified position.

[0066] The whole system is equipped with a large-capacity rechargeable lithium battery and a 220V rectifier power supply device as the power source of the whole device. If it is in a place where AC power can be connected, the whole system can be powered directly by an external 220V AC power supply. If it is in a place where AC power is not easy to obtain, such as in the wild, the lithium battery built into the mounting frame 1 can be used for power supply.

[0067] like Figure 8 and Fig. 9 As shown, the mounting frame 1 includes a lifting section 101, a third stepping motor 102, and a lifting transmission rod 103;

[0068] There are multiple lifting sections 101, and the sizes of the multiple lifting sections 101 increase from the inside to the outside. Two adjacent lifting sections 101 are snap-fitted together. The third stepper motor 102 is used to drive the lifting transmission rod 103 to extend and retract. The transmission rod is extended and retracted to support the lifting section 101 upward.

[0069] like Fig.10 As shown, a sawtooth is fixed on the outside of the lifting joint 101, a snap-in pile 1012 is slidably installed on the lifting joint 101, the snap-in pile 1012 is elastically connected to the lifting joint 101 through an elastic element 1013, an electromagnet 1014 is magnetically connected to the outside of the snap-in pile 1012, the electromagnet 1014 is fixedly installed on the lifting joint 101, the snap-in pile 1012 slides through the lifting joint 101 and snap-fits with the sawtooth on the inner side of the lifting joint 101.

[0070] An adjusting knob 1015 is also installed on the lifting joint 101 . The adjusting knob 1015 is rotatably installed on the lifting joint 101 , and the adjusting knob 1015 is meshedly connected with the buckle pile 1012 .

[0071] When the work site does not require high-altitude horizontal blockade, the mounting frame 1 starts working in a normal state. When the site requires high-altitude horizontal blockade, the mounting frame 1 can lift the height of the inner lifting section 101 through the third stepper motor 102 and the lifting transmission rod 103, and lift the vertical scanning component 2 for high-altitude blockade to the working height, so as to realize the blockade monitoring of the aerial work vehicle in the horizontal direction in the air.

[0072] When the mounting frame 1 needs to be lifted, the control mechanism sends a lifting signal, and the third stepper motor 102 starts to rotate to drive the lifting transmission rod 103. The first to be lifted is the topmost lifting section 101. When lifted to a certain height, the lifting section 101 will first touch the buckle pile 1012. Since it is currently a lifting action, the buckle pile 1012 will compress the elastic element 1013 outward under the drive of the lifting section 101 moving upward. When the bottom of the lifting section 101 passes over the buckle pile 1012, the buckle pile 1012 will pop up quickly under the action of the elastic element 1013, and the buckle locking of the lifting section 101 is realized. The lifting section 101 is stably fixed at this height under the action of the buckle pile 1012, and the lifting section 101 is lifted and moved in place. At this time, the control mechanism determines whether the height has reached the set height. If it has reached the set height, the lifting action ends. If it has not reached the set height, the same type of lifting actions are performed in sequence until the overall lifting reaches the set height. Since the outer wall of the lifting section 101 adopts a stepped outer wall design, it can be lifted to any height, which meets the actual requirements of on-site work. In actual use, multiple sections of the lifting section 101 can be designed according to the needs of the actual application site to meet the requirements of the corresponding height.

[0073] Under normal conditions, the snap-in pile 1012 is embedded in the serrations of the lifting joint 101 under the action of the elastic element 1013 to fix the position of the lifting joint 101. When unlocking is required, an unlocking signal can be sent through the control mechanism, and the electromagnet 1014 is energized to attract the snap-in pile 1012. At this time, the lifting joint 101 previously fixed by the snap-in pile 1012 can move downward freely. If the control mechanism of the electromagnet 1014 fails, the adjustment knob 1015 can be manually rotated to move the snap-in pile outward to unlock, so as to provide unlocking operation in an emergency state.

[0074] Embodiment 2:

[0075] The present invention provides a method for monitoring the safety of aerial work, including: a width monitoring method and a height monitoring method, wherein the width monitoring method includes the following steps:

[0076] A1, controlling the plurality of first laser ranging sensors 201 to cyclically rotate at a specified speed within a range of 90 degrees from horizontal to vertical directions;

[0077] A2, acquiring detection data of a plurality of first laser ranging sensors 201 between two adjacent mounting frames 1;

[0078] A3: When the detection data of two or more first laser ranging sensors 201 between two adjacent mounting frames 1 are less than the set threshold, a width over-limit alarm is issued;

[0079] A4. When, among the multiple first laser ranging sensors 201 between two adjacent mounting frames 1, there is a first laser ranging sensor 201 whose detection data is less than a set distance threshold for a duration greater than a set time threshold, a width exceeding limit alarm is issued.

[0080] The height monitoring method includes the following steps:

[0081] B1, controlling the plurality of second laser ranging sensors 301 to rotate horizontally and cyclically between two adjacent mounting frames 1 on the left and right at a specified speed;

[0082] B2, when the detection data of any two second laser ranging sensors 301 are less than the set distance threshold, a height limit-crossing alarm is issued;

[0083] B3: When the detection data of the second laser ranging sensor 301 is less than the set distance threshold for a duration greater than the set time threshold, an altitude limit-crossing alarm is issued.

[0084] It should be noted that the rotation of multiple second laser ranging sensors 301 is synchronous; when the number of second laser ranging sensors 301 is four and they are arranged in a rectangular shape, when all second laser ranging sensors 301 rotate 45 degrees, the horizontal plane has been scanned twice. When all second laser ranging sensors 301 complete a cycle of scanning from 0 degrees to 90 degrees to 0 degrees, the blocked plane has been scanned 8 times by the laser ranging system. The rotation speed of the second stepper motor 303, which rotates 90 degrees in 10 seconds, is used as the basic speed, and the host computer performs acceleration and deceleration adjustments on this basis, so the scanning system has the function of blocking the high-altitude plane in real time.

Claims

1. A high-altitude operation safety monitoring device, characterized in that: include: A mounting frame (1), wherein a plurality of the mounting frames (1) are provided, and the plurality of the mounting frames (1) enclose a closed space; A vertical scanning assembly (2), the vertical scanning assembly (2) being mounted on a mounting frame (1), the vertical scanning assembly (2) comprising a first laser distance measuring sensor (201), the first laser distance measuring sensor (201) being capable of rotating in a vertical direction, two sets of vertical scanning assemblies being mounted on any of the mounting frames (1), the first laser distance measuring sensors (201) in the two sets of vertical scanning assemblies (2) on the same mounting frame (1) facing two adjacent mounting frames (1) respectively; A horizontal scanning component (3), the horizontal scanning component (3) being mounted on a mounting frame (1), the horizontal scanning component (3) comprising a second laser ranging sensor (301), the second laser ranging sensor (301) being capable of horizontal rotation, one horizontal scanning component (3) being mounted on any mounting frame (1), and four of the second laser ranging sensors (301) all facing their adjacent second laser ranging sensors (301) in the same direction; An alarm component is used to receive signals from a first laser distance measuring sensor (201) and a second laser distance measuring sensor (301), perform logic operations on the received signals, and control alarm behavior according to the results of the logic operations.

2. A high-altitude operation safety monitoring device according to claim 1, characterized in that: The vertical scanning assembly (2) further comprises a first pan platform (202), a first transmission mechanism (203) and a first stepper motor (204); The first pan-tilt platform (202) is rotatably mounted on a mounting frame (1); the first stepper motor (204) is fixedly mounted on the mounting frame (1); a plurality of first pan-tilt platforms (202) are provided for each of the first laser ranging sensors (201) and the first pan-tilt platforms (202); the plurality of first pan-tilt platforms (202) are arranged in a stepped manner; the first laser ranging sensors (201) are fixedly mounted on the first pan-tilt platforms (202); and the first stepper motor (204) can drive the plurality of first pan-tilt platforms (202) to rotate synchronously in a vertical direction via a first transmission mechanism (203).

3. A high-altitude operation safety monitoring device according to claim 1, characterized in that: The horizontal scanning component (3) also includes a second pan-tilt platform (302) and a second stepping motor (303); The second laser distance measuring sensor (301) is mounted on the second pan-tilt platform (302), the second stepping motor (303) is fixedly mounted on the mounting frame (1), and the second stepping motor (303) is used to drive the second pan-tilt platform (302) to rotate horizontally.

4. A high-altitude operation safety monitoring device according to claim 2, characterized in that: The first transmission mechanism (203) comprises: a first driving sprocket (2031), a first driven sprocket (2032), and a first driven chain (2033); the first driving sprocket (2031) is connected and fixed to the output end of the first stepper motor (204); the first driven sprocket (2032) is connected and fixed to the first pan-tilt platform (202); and the first driving sprocket (2031) and the first driven sprocket (2032) are both meshedly connected to the first driven chain (2033).

5. The high-altitude operation safety monitoring device according to claim 2 is characterized in that: The vertical scanning assembly (2) further comprises a vertical calibration structure (205), wherein the vertical calibration structure (205) comprises a first surveying prism (2051), a detachable operating handle (2052), and a mechanical connecting rod (2053); the first surveying prism (2051) is connected and fixed to the mechanical connecting rod (2053), the mechanical connecting rod (2053) is rotatably mounted on the mounting frame (1), the detachable operating handle (2052) is meshedly connected to the mechanical connecting rod (2053) via a transmission gear set, and the mechanical connecting rod (2053) is transmission-connected to the first pan-tilt platform (202) via a sprocket chain.

6. A high-altitude operation safety monitoring device according to claim 3, characterized in that: The second pan-tilt platform (302) is provided with a vertical adjustment portion (3021), the second laser distance measuring sensor (301) is installed on the second pan-tilt platform (302) via the vertical adjustment portion (3021), the vertical adjustment portion (3021) is used to drive the second laser distance measuring sensor (301) to rotate in a vertical direction, and a second surveying prism (3022) is fixedly installed on the vertical adjustment portion (3021).

7. The high-altitude operation safety monitoring device according to claim 1 is characterized in that: The mounting frame (1) comprises a lifting section (101), a third stepping motor (102), and a lifting transmission rod (103); The lifting sections (101) are provided in plurality, and the sizes of the plurality of lifting sections (101) increase from the inside to the outside, and two adjacent lifting sections (101) are snap-fitted together. The third stepping motor (102) is used to drive the lifting transmission rod (103) to extend and retract, and the transmission rod is extended and retracted to support the lifting section (101) upwards.

8. A method for monitoring the safety of aerial work, using a device for monitoring the safety of aerial work as claimed in any one of claims 1 to 7, characterized in that: A width monitoring method is included, the width monitoring method comprising the following steps: A1, controlling a plurality of first laser ranging sensors (201) to cyclically rotate at a specified speed within a range of 90 degrees from horizontal to vertical directions; A2, acquiring detection data of a plurality of first laser ranging sensors (201) between two adjacent mounting frames (1); A3. When the detection data of two or more first laser distance measuring sensors (201) among the plurality of first laser distance measuring sensors (201) between two adjacent mounting frames (1) are all less than a set threshold, a width over-limit alarm is issued; A4. When, among the plurality of first laser distance measuring sensors (201) between two adjacent mounting frames (1), the detection data of one first laser distance measuring sensor (201) is less than a set distance threshold for a duration greater than a set time threshold, a width limit exceeding alarm is issued.

9. A method for monitoring safety of aerial work according to claim 8, characterized in that: Also included is a height monitoring method, the height monitoring method comprising the following steps: B1, controlling a plurality of second laser distance measuring sensors (301) to rotate horizontally and cyclically between two adjacent mounting frames (1) on the left and right at a specified speed; B2, when the detection data of any two second laser distance measuring sensors (301) are less than the set distance threshold, issuing a height limit exceeding alarm; B3. When the detection data of a second laser ranging sensor (301) is less than a set distance threshold for a duration greater than a set time threshold, an altitude limit-crossing alarm is issued.

10. A method for monitoring safety of aerial work according to claim 9, characterized in that: The number of the second laser distance measuring sensors (301) is four, the four second laser distance measuring sensors (301) are arranged in a rectangular shape, the rotational angular velocity of the second laser distance measuring sensors (301) is 9 degrees per second, and the time threshold is 2 seconds.

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