Measurement and safety monitoring system and method based on laser range finder

Abstract

The application provides a kind of measurement and safety monitoring system and method based on laser range finder, and the safety measurement device based on laser range finder can be controlled by mobile terminal, can slide freely along a certain direction within horizontal range under the bottom beam of overall lifting steel platform, and by the characteristics of laser emission with adjustable frequency, the distance to the object is calculated continuously, and then transmitted to mobile terminal by signal transmission module for analysis, and with the lifting of overall steel platform, the safety measurement device based on laser range finder can also be measured in vertical direction, so as to obtain three-dimensional space in construction structure. The application has simple structure and is easy to produce and manufacture, fully utilizes the advantages of laser range finder and overall lifting steel platform, and can be reused in different projects. Information can be obtained flexibly and in real time, and related problems can be handled.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of measurement and safety monitoring system and method based on laser range finder. BACKGROUND

[0002] Integral lifting steel platform (also called "building machine") is the current commonly used formwork system equipment in super high-rise building construction in China, integral lifting steel platform is widely used because it provides the construction and protection integration solution with formwork and scaffold three-dimensional operation function for super high-rise concrete structure.

[0003] To adapt to the development of intelligent construction direction of building industry, steel platform also needs to integrate intelligent equipment on the basis of fully utilizing its own characteristics, so as to realize some functions urgently needed in super high-rise building construction:

[0004] 1, the perpendicularity and levelness of super high-rise concrete structure shear wall are important basis for testing construction quality, at present, construction personnel often realize measurement by laser leveling instrument, laser plumb instrument, theodolite and other equipment, for some building construction conditions with erection equipment space, mature measurement scheme has been formed, but in super high-rise building construction, shear wall structure has been constructed while horizontal structure has not been constructed, and building has been constructed to hundreds of meters high altitude, at this time, laser leveling instrument and other equipment lose erection space, and the purpose of measurement is difficult to achieve. How to realize the measurement of super high-rise building shear wall and other structures in this case to realize the goal of testing construction quality through perpendicularity and levelness becomes an important problem to be solved.

[0005] 2, ensuring safety is often the first problem to be considered in super high-rise building construction. In integral lifting steel platform, in order to realize the function of part structure construction, additional scaffold is often hung in integral lifting steel platform. Since scaffold is the auxiliary structure of integral lifting steel platform, and sometimes the height-width ratio is large, there is a certain swing during construction, and there is a risk of collision with construction elevator, shear wall and other structures, therefore, steel platform also needs to integrate equipment that can realize real-time collision detection. SUMMARY

[0006] The purpose of the present application is to provide a kind of measurement and safety monitoring device and method based on laser range finder.

[0007] To solve the above problems, the present application provides a kind of measurement and safety monitoring system based on laser range finder, comprising:

[0008] steel formwork system 3;

[0009] guide rail column and power system 1 arranged on the upper side of the shear wall 9;

[0010] The upper platform 2 of the integral lifting steel platform connected with the guide rail column and the power system 1;

[0011] The frame type cylinder frame 4 of the integral lifting steel platform connected under the upper platform 2, the frame type cylinder frame 4 is located between the shear wall 9 of the super high-rise structure and the frame beam 10 of the super high-rise structure, the middle of the shear wall 9 is provided with the structural plate 14 of the super high-rise structure attached by the construction elevator, the standard section 11 of the construction elevator is connected on the structural plate 14, and the elevator cage 12 can move up and down along the standard section 11;

[0012] The bottom platform 8 of the integral lifting steel platform connected to the lower part of the frame type cylinder frame 4, and the lower part of the bottom platform 8 is provided with a safety measuring device 13 based on a laser range finder;

[0013] The bracket 7 is arranged on the bottom platform 8 of the integral lifting steel platform, and the bracket 7 is placed in the reserved hole of the shear wall 9 after the integral lifting steel platform stops climbing each time;

[0014] The lower hanging scaffold 6 connected to the lower part of the upper platform 2 of the integral lifting steel platform, the lower hanging scaffold 6 is arranged between the standard section 11 and the frame beam 10, and the lower part of the lower hanging scaffold 6 is provided with a safety measuring device 13 based on a laser range finder.

[0015] Further, in the above system, the safety measuring device 13 based on the laser range finder comprises:

[0016] The track 15 / 16 arranged at the lower part of the bottom platform 8 or the lower hanging scaffold 6;

[0017] The pulley 17 of the pulley trolley arranged on the track 15 / 16;

[0018] The vehicle body 18 of the pulley trolley connected with the pulley 17, the vehicle body 18 is provided with a laser range finder 19, a data solving end 20 of the laser range finder, a power device 21 of the pulley trolley, a control terminal 22 and a signal receiving and transmitting module 23 of the laser range finder, wherein the laser range finder 19 comprises a laser emitting module and a laser receiving module, the control terminal 22 is connected with the power device 21, the signal receiving and transmitting module 23, the data solving end 20 and the laser emitting module of the laser range finder 19 respectively, the power device 21 is connected with the pulley 17, and the laser receiving module is connected with the data solving end 20;

[0019] The mobile terminal connected with the safety measuring device 13 based on the laser range finder.

[0020] Further, in the above system, the mobile terminal is wirelessly connected with the signal receiving and transmitting module 23.

[0021] Further, in the system, the track comprises:

[0022] a straight section track 15;

[0023] an arc section track 16 connected with the straight section track 15.

[0024] Further, in the system, further comprising:

[0025] an external hanging scaffold 5 connected with the integral lifting steel platform under the upper platform 2, the external hanging scaffold 5 being arranged at a side of the shear wall 9 away from the frame beam 10.

[0026] According to another aspect of the present application, a laser range finder based measurement and safety monitoring method is also provided, which adopts any one of the laser range finder based measurement and safety monitoring systems, and the method comprises:

[0027] For the east side shear wall 9, when the pulley car of the bottom platform 8 is at the A position and the B position of the east side wall, the distance y a of the A position relative to the east side shear wall 9 and the distance y b of the B position relative to the east side shear wall 9 are respectively obtained by the laser range finder based safety measurement device 13. a If the distance y b is not equal to the distance y C , it is judged that there is unevenness on the horizontal level of the east side wall.

[0028] Further, in the method, further comprising:

[0029] For the south side shear wall 9, when the pulley car of the bottom platform 8 is at the C position and the D position of the south side wall, the distance y C of the C position relative to the south side shear wall 9 and the distance y d of the D position relative to the south side shear wall 9 are respectively obtained by the laser range finder based safety measurement device. c If the distance y d is not equal to the distance y A1 , it is judged that there is unevenness on the south side shear wall 9.

[0030] Further, in the method, the method further comprises:

[0031] controlling the pulley car of the bottom platform 8 to stay at the A1 initial position, and the mobile terminal obtains the distance x A1 of the A1 initial position relative to the shear wall 9; then after the integral lifting steel platform is lifted from the initial position A1 to the A2 position, the distance x A2 of the A2 position relative to the shear wall 9 is obtained by the laser range finder based safety measurement device 13. A2 If x A1≤8mm, that is, it is judged that the verticality of the shear wall 9 meets the construction standard.

[0032] Further, in the above method, the method further comprises:

[0033] After the overall lifting steel platform is lifted from the initial A2 position to the A3 position, the distance x of the A2 position relative to the shear wall 9 is obtained by the safety measuring device 13 based on the laser range finder A3 If x A3 -x A2 = preset distance, that is, it is judged that the shear wall meets the construction standard.

[0034] Further, in the above method, the method further comprises:

[0035] The pulley car at the lower part of the lower hanging scaffold 6 is kept at the east side of the elevator cage 12, the laser emission frequency of the laser range finder is set, and the safety threshold function of the mobile terminal is started, and the safety distance is set. Once the mobile terminal monitors that the distance between the safety measuring device 13 based on the laser range finder and the elevator cage 12 is less than the safety threshold, the safety measuring device 13 based on the laser range finder sends an alarm signal to the mobile terminal.

[0036] Compared with the prior art, the present application utilizes the characteristics that the overall lifting steel platform has large platform stiffness and can be default to have no deformation, and provides a steel platform lower hanging track type system based on a laser range finder for safety monitoring and wall flatness measurement in a super high-rise structure construction process. The safety measuring device based on the laser range finder can be controlled through the mobile terminal, can be freely slid along a certain direction on the lower side of the overall lifting steel platform bottom beam in a horizontal range, and utilizes the characteristics that the laser is continuously emitted at an adjustable frequency, continuously calculates the distance to the passing object, and then transmits the signal to the mobile terminal for analysis through the signal transmission module. With the lifting of the overall steel platform, the safety measuring device based on the laser range finder can also be measured in the vertical direction. Thus, the three-dimensional space acquisition at the construction structure is realized. The present application has simple structure and is easy to produce and manufacture, fully utilizes the advantages of the laser range finder and the overall lifting steel platform, and can be repeatedly used in different projects. Information can be flexibly and timely acquired, and related problems can be handled.

[0037] The present application can perform real-time measurement on super high-rise building shear walls and other structures, so as to realize the purpose of checking and verifying the construction quality through verticality and horizontality.

[0038] In addition, the present application can perform real-time collision warning through the setting of the mobile terminal, timely arrange the on-site management personnel to eliminate the risk, so as to avoid the damage of the construction equipment and protect the life safety of the construction personnel. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1is a sectional view of the integral lifting steel platform of an embodiment of the present application;

[0040] Figure 2 is a bottom view of the integral lifting steel platform of an embodiment of the present application;

[0041] Figure 3 is a sectional view of the safety measuring device based on the laser range finder of an embodiment of the present application;

[0042] Figure 4 is an installation top view of the safety measuring device based on the laser range finder of an embodiment of the present application;

[0043] Figure 5 is a structural schematic diagram of the laser range finder function module of an embodiment of the present application;

[0044] Figure 6 is a working principle diagram of the safety measuring device based on the laser range finder of an embodiment of the present application;

[0045] Figure 7 is a plane relationship schematic diagram of the lower track of the steel platform bottom platform and the trolley of an embodiment of the present application;

[0046] Figure 8 is a sectional relationship schematic diagram of the lower track of the steel platform bottom platform and the trolley of an embodiment of the present application. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and specific embodiments.

[0048] As shown in Figures 1 to 8 , the present application provides a measurement and safety monitoring system based on a laser range finder, comprising:

[0049] a steel formwork system 3;

[0050] a guide rail column and power system 1 arranged on the upper side of the steel shear wall 9, the guide rail column and power system 1 being the main force bearing component of the integral lifting steel platform in the lifting state;

[0051] an upper platform 2 of the integral lifting steel platform connected with the guide rail column and power system 1;

[0052] The frame type cylinder frame 4 connected to the integral lifting steel platform under the upper platform 2 is located between the shear wall 9 of the super high-rise structure and the frame beam 10 of the super high-rise structure, the middle of the shear wall 9 is provided with the structural plate 14 of the super high-rise structure on which the standard section 11 of the construction elevator is connected, the elevator cage 12 can move up and down along the standard section 11, the shear wall 9 is one of the objects to be detected in the application, and the elevator cage 12 is one of the objects to be detected in the application;

[0053] The bottom platform 8 of the integral lifting steel platform connected to the lower part of the frame type cylinder frame 4 is provided with the safety measuring device 13 based on a laser range finder at the lower part of the bottom platform 8;

[0054] The bracket 7 is arranged on the bottom platform 8 of the integral lifting steel platform, and the bracket 7 is placed in the reserved hole of the shear wall 9 after the integral lifting steel platform stops climbing each time, and the bracket 7 is the main force component of the integral lifting steel platform in the working state without lifting;

[0055] The mobile terminal connected with the safety measuring device 13 based on a laser range finder.

[0056] In this application, the bottom platform of the integral lifting steel platform has the characteristics of large rigidity and no deformation by default, and a steel platform under-hanging track type system based on a laser range finder for safety and safety monitoring and wall flatness measurement in the construction process of a super high-rise structure is provided. The safety measuring device based on a laser range finder can be controlled through a mobile terminal, can slide freely in a certain direction within a horizontal range under the bottom beam of the integral lifting steel platform, and can continuously emit laser beams at an adjustable frequency, calculate the distance to the passing object, and then transmit the signal to the mobile terminal for analysis. With the lifting of the integral steel platform, the safety measuring device based on a laser range finder can also be measured in the vertical direction. Thus, the three-dimensional space of the construction structure is obtained. The application has simple structure, is easy to produce and manufacture, fully utilizes the advantages of the laser range finder and the integral lifting steel platform, can be repeatedly used in different projects, and can flexibly and timely obtain information and process related problems.

[0057] The application can measure the structure of a super high-rise building shear wall in real time to realize the purpose of checking and verifying the construction quality through perpendicularity and levelness.

[0058] As shown in Figure 1 and 2 The safety monitoring system based on a laser range finder of the application further comprises:

[0059] The lower scaffolding 6 is connected to the lower part of the upper platform 2 of the integral lifting steel platform. The lower scaffolding 6 is set between the standard section 11 and the frame beam 10. The lower part of the lower scaffolding 6 is equipped with a safety measuring device 13 based on a laser rangefinder. The lower scaffolding 6 is an auxiliary structure of the integral lifting steel platform.

[0060] This invention enables real-time collision warnings via mobile terminal settings, allowing on-site management personnel to promptly address risks and prevent damage to construction equipment, thus ensuring the safety of construction workers.

[0061] like Figures 3 to 5 As shown, in one embodiment of the laser rangefinder-based measurement and safety monitoring system of the present invention, the laser rangefinder-based safety measurement device 13 includes:

[0062] Tracks 15 / 16 are installed at the lower part of the bottom platform 8 or the lower scaffolding 6;

[0063] The pulley 17 of the pulley cart is set on the track 15 / 16;

[0064] The pulley cart body 18 is connected to the pulley 17. The body 18 is equipped with a laser rangefinder 19, a laser rangefinder data processing terminal 20, a pulley cart power unit 21, a control terminal 22, and a laser rangefinder signal receiving and transmitting module 23. The laser rangefinder 19 includes a laser transmitting module and a laser receiving module. The control terminal 22 is connected to the power unit 21, the signal receiving and transmitting module 23, the data processing terminal 20, and the laser transmitting module of the laser rangefinder 19. The power unit 21 is connected to the pulley 17, and the laser receiving module is connected to the data processing terminal 20.

[0065] Here, the control terminal 22 includes a power supply module.

[0066] In one embodiment of the laser rangefinder-based measurement and safety monitoring system of the present invention, the mobile terminal is wirelessly connected to the signal receiving and transmitting module 23.

[0067] Here, a distance alarm threshold can be set on the mobile terminal. When staying in a collision-hazardous area designed in the construction plan for an extended period of time, this function can be activated. Once the distance to the target object (elevator cage, super high-rise structure such as shear wall, etc.) exceeds the threshold, an alarm signal will be sent to the mobile terminal.

[0068] The mobile terminal can control the pulley cart to move freely along the track via a mobile app, receive information transmitted by the customized laser rangefinder and the pulley cart, and transmit commands to control the frequency of laser emission, etc.

[0069] After the whole lifting steel platform and the lower hanging scaffold are installed, the laser range finder based safety measuring device 13 is installed, the track, the pulley trolley and the laser range finder are installed in sequence, and debugging is performed on the mobile terminal to achieve the purpose of normal detection.

[0070] As shown in Figure 3 and 4 , in an embodiment of the laser range finder based measuring and safety monitoring system of the present application, the track comprises:

[0071] a straight section track 15;

[0072] and an arc section track 16 connected with the straight section track 15.

[0073] Here, the track is divided into a straight section and an arc section, the straight section track 15 is made of 10# channel steel, the straight section is cut according to the required length, the arc section track is specially made according to the actual needs and matched with the straight section track 15, and the arc section is customized according to the plane layout characteristics. When used, the guide rail is first welded in sequence at the lower part of the lower hanging scaffold 6 or the bottom platform 8.

[0074] As shown in Figure 1 and 2 , in an embodiment of the laser range finder based measuring and safety monitoring system of the present application, further comprising:

[0075] an outer hanging scaffold 5 connected to the whole lifting steel platform below the upper platform 2, the outer hanging scaffold 5 is arranged on the side away from the frame beam 10 of the shear wall 9.

[0076] The present application also provides a laser range finder based measuring and safety monitoring method, which adopts the laser range finder based measuring and safety monitoring system of any one of the above embodiments, and the method comprises:

[0077] for the pulley trolley installed on the bottom platform 8 of the whole lifting steel platform, when the whole lifting steel platform is in the working state of not being lifted, the pulley trolley of the bottom platform 8 is controlled to move along the track, Figure 7 the track and the pulley trolley in Figure 2 are listed separately, Figure 7 As can be seen in, the control terminal determines the actual position of the pulley trolley of the bottom platform 8 in the track according to the initial installation position, which is initially installed at x=0, y=0; for the shear wall 9 on the east side, when the pulley trolley of the bottom platform 8 is at the A position and the B position of the east wall, the laser range finder based safety measuring device can obtain the distance y a of the A position relative to the shear wall 9 on the east side and the distance y b of the B position relative to the shear wall 9 on the east side, respectively. a As the distance y bFurthermore, by manually eliminating distance discrepancies caused by irrelevant obstacles, it can be determined that there is an unevenness on the horizontal plane of the east wall. Similarly, for the south shear wall 9, when the pulley is at positions C and D on the south wall, the distance y of position C relative to the south shear wall 9 is obtained respectively. C The distance y between position D and the shear wall 9 on the south side d For example, distance y c Not equal to distance y d This also indicates that the shear wall 9 on the south side has an uneven surface.

[0078] In one embodiment of the laser rangefinder-based measurement and safety monitoring method of the present invention, the method further includes:

[0079] Will Figure 1 The cross-sectional views of the bottom platform of the Sinosteel platform and the pulley trolley installed on the bottom platform 8 of the integral lifting steel platform are listed separately. Figure 8 In the middle, the pulley cart controlling the bottom platform 8 stops at... Figure 8 The mobile terminal obtains the distance x between position A1 and shear wall 9 from the initial position A1. A1 Then, after the overall lifting steel platform is raised from the initial position A1 to the position A2, the distance x between position A2 and the shear wall 9 is obtained by the safety measuring device 13 based on the laser rangefinder. A2 If x A2 -x A1 If the verticality of shear wall 9 is ≤8mm and the uneven distance caused by unrelated obstacles is manually eliminated, it can be determined that the verticality meets the construction standards.

[0080] In addition, shear walls in super high-rise buildings often exhibit wall tapering (e.g., 1000mm thick wall for floors 1-6; 800mm thick wall for floors 6-10). Figure 8 In the case of moving from position A2 to position A3, after the overall lifting steel platform is raised from the initial position A2 to position A3, the distance x between position A2 and shear wall 9 is obtained through the safety measuring device 13 based on a laser rangefinder. A3 Assuming the shear wall has a pre-set taper distance of 200mm at story F(n+3), if x A3 -x A2 =Preset distance for receiving points, such as x A3 -x A2 =200mm, and if the uneven distance caused by unrelated obstacles is manually eliminated, it can be determined that the shear wall taper meets the construction standards.

[0081] In one embodiment of the laser rangefinder-based measurement and safety monitoring method of the present invention, the method further includes:

[0082] In practical application, from 6:00 to 21:00 Beijing time, that is, the regular construction personnel working hours, aiming at the safety measurement device 13 based on laser range finder installed at the lower part of the hanging scaffold 6, the safety monitoring module is applied in practice, and the pulley car at the lower part of the hanging scaffold 6 is kept in place Figure 2 The east side of the elevator cage is set to the laser emission frequency of the laser range finder, and the safety threshold function of the mobile terminal is opened to set the safety distance. Once the mobile terminal detects that the distance between the safety measurement device 13 based on laser range finder and the elevator cage 12 is less than the safety threshold, the safety measurement device 13 based on laser range finder sends an alarm signal to the mobile terminal. The automatic cruise mode of the pulley car can be opened at other times to measure whether there is a safety distance problem at other positions.

[0083] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0084] The skilled person can further realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed in the present text can be realized in electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, the components and steps of the examples have been described in the above description in general terms. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0085] Obviously, those skilled in the art can make various modifications and variations to the application without departing from the spirit and scope of the application. Therefore, if these modifications and variations of the application fall within the scope of the claims of the application and their equivalents, the application also intends to include these modifications and variations.

Claims

1. A laser rangefinder based measurement and safety monitoring system, characterized in that, The application relates to a steel formwork system (3), a guide rail column and power system (1) arranged on the upper side of a shear wall (9), an upper platform (2) of the integral lifting steel platform connected with the guide rail column and power system (1), a frame type column frame (4) of the integral lifting steel platform connected below the upper platform (2), the frame type column frame (4) being located between a shear wall (9) of the super high-rise structure and a frame beam (10) of the super high-rise structure, a structural plate (14) of the super high-rise structure being arranged in the middle of the shear wall (9) and a standard section (11) of the construction elevator being connected to the structural plate (14), and an elevator cage (12) moving up and down along the standard section (11). The application further relates to a safety measuring device (13) based on a laser range finder arranged on the lower part of the bottom platform (8) of the integral lifting steel platform. The application further relates to a bracket (7) arranged on the bottom platform (8) of the integral lifting steel platform, the bracket (7) being placed in a reserved hole of the shear wall (9) after the integral lifting steel platform stops climbing each time. The application further relates to a lower hanging scaffold (6) connected to the lower part of the upper platform (2) of the integral lifting steel platform, the lower hanging scaffold (6) being arranged between the standard section (11) and the frame beam (10), and the lower part of the lower hanging scaffold (6) being provided with the safety measuring device (13) based on the laser range finder. The safety measuring device (13) based on the laser range finder comprises a track arranged on the lower part of the bottom platform (8) or the lower hanging scaffold (6), a pulley (17) of a pulley trolley arranged on the track, a trolley body (18) of the pulley trolley connected with the pulley (17), and a laser range finder (19), a data solving end (20) of the laser range finder, a power device (21) of the pulley trolley, a control terminal (22) and a signal receiving and transmitting module (23) of the laser range finder arranged on the trolley body (18), wherein the laser range finder (19) comprises a laser emitting module and a laser receiving module, the control terminal (22) is connected with the power device (21), the signal receiving and transmitting module (23), the data solving end (20) and the laser emitting module of the laser range finder (19) respectively, the power device (21) is connected with the pulley (17), and the laser receiving module is connected with the data solving end (20). The application further relates to a mobile terminal connected with the safety measuring device (13) based on the laser range finder. The mobile terminal is wirelessly connected with the signal receiving and transmitting module (23). The track comprises a straight section track (15) and an arc section track (16) connected with the straight section track (15). The application further relates to an outer hanging scaffold (5) of the integral lifting steel platform connected below the upper platform (2), the outer hanging scaffold (5) being arranged on the side of the shear wall (9) away from the frame beam (10). The application further relates to a method for measuring and safety monitoring based on a laser range finder, the method comprising the following steps. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. A method of measurement and safety monitoring based on a laser rangefinder, characterized in that, ​ For the shear wall (9) on the east side, when the pulley cart of the bottom platform (8) is at positions A and B on the east side wall, the distance y between position A and the shear wall (9) on the east side is obtained by the safety measurement device (13) based on the laser rangefinder. a The distance y between position B and the shear wall (9) on the east side b For example, distance y a Not equal to distance y b This means determining that there is an unevenness on the horizontal plane of the east wall; For the shear wall (9) on the south side, when the pulley cart of the bottom platform (8) is at position C and position D on the south wall, the distance y between position C and the south shear wall (9) is obtained by a safety measuring device based on a laser rangefinder. C The distance y between position D and the shear wall (9) on the south side d For example, distance y c Not equal to distance y d That is, it is determined that the shear wall (9) on the south side has an uneven surface; The scooter of the control bottom platform (8) stays at the A1 initial position, and the mobile terminal obtains the distance of the A1 initial position relative to the shear wall (9) Then, after the whole steel platform is lifted from the initial position A1 to the A2 position, the distance of the A2 position relative to the shear wall (9) is obtained through the safety measuring device (13) based on the laser range finder If That is, it is judged that the perpendicularity of the shear wall (9) meets the construction standard; After the whole steel platform is lifted from the initial A2 position to the A3 position, the distance of the A2 position relative to the shear wall (9) is obtained through the safety measuring device (13) based on the laser range finder if = preset distance, that is, it is judged that the shear wall meets the construction standard The pulley car at the lower part of the lower hanging scaffold (6) is kept at the east side of the elevator cage (12) for a long time, the laser emission frequency of the laser range finder is set, the safety threshold function of the mobile terminal is started, the safety distance is set, and once the mobile terminal monitors that the distance between the safety measuring device (13) based on the laser range finder and the elevator cage (12) is less than the safety threshold, the safety measuring device (13) based on the laser range finder sends an alarm signal to the mobile terminal.

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