阅读说明：本技术 一种基于大数据的建筑施工安全监测管理系统 (Building construction safety monitoring management system based on big data ) 是由 霍祥明 于 2020-07-15 设计创作，主要内容包括：本发明公开一种基于大数据的建筑施工安全监测管理系统,包括风速检测模块、负载重量检测模块、拉绳夹角检测模块、工作距离分析模块、塔吊重力分析模块、吊杆离地高度检测模块、地基承载力检测模块、显示模块、控制服务器和存储数据库；本发明通过风速检测模块结合控制服务器判断塔吊能否开始工作,并通过检测负载的重量,判断塔吊起重是否超载,计算塔吊负载后的总重力,同时通过拉绳夹角检测模块、工作距离分析模块、吊杆离地高度检测模块和地基承载力检测模块并结合控制服务器综合计算塔吊侧倾稳定安全系数,对比判断塔吊是否符合安全起重要求,对不符合的塔吊立刻停止起重工作,并进行拆卸处理,预防塔吊侧倾事故。(The invention discloses a building construction safety monitoring management system based on big data, which comprises a wind speed detection module, a load weight detection module, a stay cord included angle detection module, a working distance analysis module, a tower crane gravity analysis module, a suspender ground clearance detection module, a foundation bearing capacity detection module, a display module, a control server and a storage database, wherein the stay cord included angle detection module is used for detecting the distance between the ground and the ground; the invention judges whether the tower crane can start working by combining the wind speed detection module with the control server, judges whether the crane is overloaded by detecting the weight of the load, calculates the total gravity of the tower crane after the load is loaded, comprehensively calculates the tower crane roll stability safety coefficient by combining the stay cord included angle detection module, the working distance analysis module, the suspender ground clearance detection module and the foundation bearing capacity detection module with the control server, judges whether the tower crane meets the safety crane lifting requirement by comparison, immediately stops the crane lifting work for the tower crane which is not met, and carries out disassembly treatment, thereby preventing the tower crane roll accident.)

1. The utility model provides a building construction safety monitoring management system based on big data which characterized in that: the system comprises a wind speed detection module, a load weight detection module, a stay cord included angle detection module, a working distance analysis module, a tower crane gravity analysis module, a suspender ground clearance detection module, a foundation bearing capacity detection module, a display module, a control server and a storage database;

the control server is respectively connected with the wind speed detection module, the load weight detection module, the working distance analysis module, the tower crane gravity analysis module, the suspender ground clearance detection module, the foundation bearing capacity detection module, the display module and the storage database, the storage database is respectively connected with the tower crane gravity analysis module and the working distance analysis module, and the stay cord included angle detection module is connected with the working distance analysis module;

the wind speed detection module comprises a wind speed sensor and is used for detecting the real-time wind speed of the tower crane during lifting operation on the same day, recording the detected real-time wind speed value as v, and sending the detected real-time wind speed value to the control server;

the control server is used for receiving the real-time wind speed value sent by the wind speed detection module, extracting the wind speed value corresponding to each standard wind speed grade stored in the storage database, comparing the received wind speed value with the wind speed value corresponding to each standard wind speed grade, screening the wind speed grade corresponding to the wind speed value, simultaneously extracting the safe wind speed grade of the normal hoisting operation of the tower crane stored in the storage database, comparing the screened wind speed grade with the safe wind speed grade of the normal hoisting operation of the tower crane, if the screened wind speed grade is greater than the safe wind speed grade of the normal hoisting operation of the tower crane, indicating that the tower crane cannot start working, if the screened wind speed grade is less than or equal to the safe wind speed grade of the normal hoisting operation of the tower crane, indicating that the tower crane can start working, controlling the tower crane to execute the hoisting work, and sending the compared wind speed grade to the;

the load weight detection module comprises a gravity sensor and is used for detecting the load weight of the tower crane, detecting the load weight of the tower crane through the gravity sensor and sending the detected load weight to the control server;

the control server is used for receiving the load weight sent by the load weight detection module, extracting the maximum safe weight of the tower crane hoisting load stored in the storage database, comparing the received load weight with the stored maximum safe weight of the tower crane hoisting load, indicating that the tower crane cannot work if the received load weight is greater than the maximum safe weight of the tower crane hoisting load, indicating that the tower crane can work normally if the received load weight is less than or equal to the maximum safe weight of the tower crane hoisting load, and respectively sending the compared load weights to the working distance analysis module and the tower crane gravity analysis module;

the pull rope included angle detection module comprises an angle sensor, the angle sensor is used for respectively detecting an included angle between a balance arm and a balance arm pull rope, an included angle between a crane arm and a crane arm pull rope and an included angle between the crane arm and a pull rope of a tower crane tip at the position of a luffing trolley, the angle sensor is used for detecting an included angle between the balance arm and the balance arm pull rope, the included angle is marked as alpha, an included angle between the crane arm and the crane arm pull rope is detected, the included angle is marked as beta, an included angle between the crane arm and a pull rope of the tower crane tip at the position of the luffing trolley is detected, and the detected included angle between the balance arm and the crane arm pull rope, the detected included angle between the crane arm and the crane arm pull rope and the detected included angle between the crane arm and the crane arm pull rope;

the working distance analysis module is used for receiving the compared load weight sent by the control server, receiving an included angle between a balance arm and a balance arm pull rope, an included angle between a crane arm and a crane arm pull rope and an included angle between the crane arm and a pull rope of a tower crane tip at the position of the luffing trolley sent by the pull rope included angle detection module, extracting the standard total weight of the balance arm and a balance weight on the balance arm, the standard total weight of the crane arm, the standard length of the balance arm and the standard length of the crane arm stored in the storage database, calculating the distance from the cab when the luffing trolley works according to the received load weight, and sending the distance from the cab when the luffing trolley works to the control server;

the tower crane gravity analysis module is used for receiving the compared load weight sent by the control server, extracting the standard total weight of the balance arm and the balance weight on the balance arm, the standard total weight of the crane arm and the standard weight of the cab stored in the storage database, calculating the total gravity after the tower crane load, and sending the calculated total weight after the tower crane load to the control server;

the control server is used for receiving the distance from the amplitude variation trolley to the cab during working and receiving the total weight of the tower crane after load, which is sent by the tower crane gravity analysis module, from the working distance analysis module, extracting the initial safe distance of the amplitude variation trolley on the cargo boom, which is stored in the storage database, from the cab during working, subtracting the initial safe distance of the amplitude variation trolley on the cargo boom from the distance of the amplitude variation trolley on the cargo boom, calculating the movement distance of the amplitude variation trolley on the cargo boom, and controlling the amplitude variation trolley to move to the position of the distance on the cargo boom according to the calculated movement distance of the amplitude variation trolley on the cargo boom;

the suspender ground clearance detection module is used for detecting the height of a suspender of the tower crane from the ground, measuring the height of a standard section of the tower body, counting the number of the standard sections used by the tower body, calculating the suspender ground clearance according to the height of the standard section of the tower body multiplied by the number of the standard sections, recording the suspender ground clearance as h, and sending the suspender ground clearance to the control server;

the foundation bearing capacity detection module comprises a penetration analyzer and is used for detecting the foundation bearing capacity of the area where the tower crane base is located, the standard penetration test method is adopted, the foundation bearing capacity is obtained through the comparative analysis of the penetration analyzer and is marked as P, and the obtained foundation bearing capacity is sent to the control server;

the control server is used for receiving the ground clearance of the suspender sent by the suspender ground clearance detection module, receiving the ground bearing capacity sent by the ground bearing capacity detection module, extracting the area of the ground occupied by the ground stored in the storage database, calculating the tower crane roll stability safety coefficient, extracting the tower crane standard roll stability safety coefficient stored in the storage database, comparing the calculated tower crane roll stability safety coefficient with the tower crane standard roll stability safety coefficient, if the calculated tower crane roll stability safety coefficient is more than or equal to the tower crane standard roll stability safety coefficient, indicating that the tower crane meets the safe hoisting requirement, if the calculated tower crane roll stability safety coefficient is less than the tower crane standard roll stability safety coefficient, indicating that the tower crane does not meet the safe hoisting requirement, controlling the tower crane to stop hoisting work, and simultaneously informing related personnel to disassemble the tower crane, the tower crane side-tipping stability safety coefficient is sent to a display module;

the storage database is used for storing wind speed values corresponding to the standard wind speed grades and safe wind speed grades of normal hoisting operation of the tower crane, storing the maximum safe weight of a hoisting load of the tower crane, storing the standard total weight of the balance arm and the balance weight on the balance arm, the standard total weight of the crane boom, the standard weight of a cab, the standard length of the balance arm and the standard length of the crane boom, and storing the initial safe distance of the luffing trolley on the crane boom and the area s of the ground occupied by the foundation_GroundMeanwhile, the standard side-tipping stability safety coefficient of the tower crane is stored;

the display module is used for receiving the wind speed grade and the tower crane roll stability safety coefficient sent by the control server and displaying the received wind speed grade and the tower crane roll stability safety coefficient.

2. The building construction safety monitoring and management system based on big data according to claim 1, characterized in that: the calculation formula of the distance from the amplitude variation trolley to the cab during working is as followsl' is the distance m from the cab of the luffing carriage during operation₃Expressed as the standard total weight of the balance arm and the balance weight on the balance arm, α is expressed as the angle between the balance arm and the balance arm pull rope, g is expressed as the gravity acceleration of the earth's surface, and is equal to 9.8m/s²，l₁Expressed as the standard length of the balance arm, m₁Expressed as the standard total weight of the boom, β as the angle between the boom and the boom guy rope, |₂Expressed as the standard length of a crane boom, theta is expressed as the included angle between the crane boom and a pull rope connected with the top of a tower crane at the position of the luffing trolley, and m₂Expressed as the load weight.

3. The building construction safety monitoring and management system based on big data according to claim 1, characterized in that: the standard penetration test method comprises the following steps:

s1, drilling a soil layer needing a standard penetration test by a drilling machine, cleaning holes, replacing a standard penetration device, and measuring the depth size;

s2, vertically driving the penetrating device into a test soil layer, driving the penetrating device into the test soil layer by 15cm, counting the number of impacts, continuously penetrating the penetrating device into the soil by 30cm, and recording the number of hammering of the penetrating device, wherein the number is the standard number of penetration;

s3, extracting the penetrating device, taking out the soil sample in the penetrating device, carrying out identification description and recording, then changing a drilling tool to continue drilling to the next depth required to be tested, repeating the operation, and generally carrying out the test at intervals of 1.0-2.0 m;

and S4, performing multiple tests on the same soil layer, then taking the average value of the hammering number, and comparing and analyzing the hammering number by the penetration analyzer to obtain the bearing capacity of the foundation.

4. The building construction safety monitoring and management system based on big data according to claim 1, characterized in that: the calculation formula of the total weight of the tower crane after loading is G_{General assembly}＝(m₁+m₂+m₃+m₄)g，G_{General assembly}Expressed as the total weight of the tower crane after loading, m₁Expressed as the standard total weight of the boom, m₂Expressed as load weight, m₃Expressed as the standard total weight of the balance arm and the balance weight, m₄Expressed as the standard weight of the cab, g is the acceleration of gravity of the earth's surface, equal to 9.8m/s²。

5. The building construction safety monitoring and management system based on big data according to claim 1, characterized in that: the calculation formula of the tower crane side-tipping stability safety coefficient is

Technical Field

The invention relates to the field of building construction safety monitoring, in particular to a building construction safety monitoring management system based on big data.

Background

The tower crane is essential hoisting equipment on construction sites, is mainly used for vertical and horizontal conveying of materials in building construction, and has the characteristics of wide application range, high hoisting height, high construction efficiency and the like. The tower crane works in various construction occasions, the structure of the tower crane is complex, the operation environment is severe, and personal and property safety is seriously harmed once safety accidents occur, so that the safety problem of the operation of the tower crane is paid much attention to by people.

At present, the problems which cannot be ignored exist in the operation safety of the tower crane, the traditional tower crane lifting operation is the tower crane lifting operation through the experience of people, the real-time wind speed is not considered, the balance of the tower crane can be reduced when the wind speed is too high, the life of constructors is damaged, meanwhile, whether the load is overweight or not can not be accurately judged, the bearing capacity of a foundation cannot be detected, the stability safety coefficient of the tower crane tilting cannot be calculated, meanwhile, whether the tower crane meets the safety lifting requirement or not can not be judged according to the stability safety coefficient of the tower crane tilting, the occurrence of tower crane tilting accidents is increased, and in order to solve the problems, the building construction safety monitoring and management system based on the.

Disclosure of Invention

The invention aims to provide a building construction safety monitoring and management system based on big data, which judges whether a tower crane can start to work or not by combining a wind speed detection module and a control server, judges whether the crane is overloaded or not by detecting the weight of a load, calculates the total gravity of the tower crane after the load is loaded by a tower crane gravity analysis module, calculates the stability safety coefficient of the tower crane during heeling by detecting the height above the ground of a suspender and the bearing capacity of a foundation, compares and judges whether the tower crane meets the safe operation requirement or not, immediately stops the crane operation for the tower crane which is not met, and carries out disassembly treatment, thereby solving the problems in the background technology.

The purpose of the invention can be realized by the following technical scheme:

a building construction safety monitoring management system based on big data comprises a wind speed detection module, a load weight detection module, a stay cord included angle detection module, a working distance analysis module, a tower crane gravity analysis module, a suspender ground clearance detection module, a foundation bearing capacity detection module, a display module, a control server and a storage database;

the control server is respectively connected with the wind speed detection module, the load weight detection module, the working distance analysis module, the tower crane gravity analysis module, the suspender ground clearance detection module, the foundation bearing capacity detection module, the display module and the storage database, the storage database is respectively connected with the tower crane gravity analysis module and the working distance analysis module, and the stay cord included angle detection module is connected with the working distance analysis module;

the wind speed detection module comprises a wind speed sensor and is used for detecting the real-time wind speed of the tower crane during lifting operation on the same day, recording the detected real-time wind speed value as v, and sending the detected real-time wind speed value to the control server;

the control server is used for receiving the real-time wind speed value sent by the wind speed detection module, extracting the wind speed value corresponding to each standard wind speed grade stored in the storage database, comparing the received wind speed value with the wind speed value corresponding to each standard wind speed grade, screening the wind speed grade corresponding to the wind speed value, simultaneously extracting the safe wind speed grade of the normal hoisting operation of the tower crane stored in the storage database, comparing the screened wind speed grade with the safe wind speed grade of the normal hoisting operation of the tower crane, if the screened wind speed grade is greater than the safe wind speed grade of the normal hoisting operation of the tower crane, indicating that the tower crane cannot start working, if the screened wind speed grade is less than or equal to the safe wind speed grade of the normal hoisting operation of the tower crane, indicating that the tower crane can start working, controlling the tower crane to execute the hoisting work, and sending the compared wind speed grade to the;

the load weight detection module comprises a gravity sensor and is used for detecting the load weight of the tower crane, detecting the load weight of the tower crane through the gravity sensor and sending the detected load weight to the control server;

the control server is used for receiving the load weight sent by the load weight detection module, extracting the maximum safe weight of the tower crane hoisting load stored in the storage database, comparing the received load weight with the stored maximum safe weight of the tower crane hoisting load, indicating that the tower crane cannot work if the received load weight is greater than the maximum safe weight of the tower crane hoisting load, indicating that the tower crane can work normally if the received load weight is less than or equal to the maximum safe weight of the tower crane hoisting load, and respectively sending the compared load weights to the working distance analysis module and the tower crane gravity analysis module;

the pull rope included angle detection module comprises an angle sensor, the angle sensor is used for respectively detecting an included angle between a balance arm and a balance arm pull rope, an included angle between a crane arm and a crane arm pull rope and an included angle between the crane arm and a pull rope of a tower crane tip at the position of a luffing trolley, the angle sensor is used for detecting an included angle between the balance arm and the balance arm pull rope, the included angle is marked as alpha, an included angle between the crane arm and the crane arm pull rope is detected, the included angle is marked as beta, an included angle between the crane arm and a pull rope of the tower crane tip at the position of the luffing trolley is detected, and the detected included angle between the balance arm and the crane arm pull rope, the detected included angle between the crane arm and the crane arm pull rope and the detected included angle between the crane arm and the crane arm pull rope;

the working distance analysis module is used for receiving the compared load weight sent by the control server, receiving an included angle between a balance arm and a balance arm pull rope, an included angle between a crane arm and a crane arm pull rope and an included angle between the crane arm and a pull rope of a tower crane tip at the position of the luffing trolley sent by the pull rope included angle detection module, extracting the standard total weight of the balance arm and a balance weight on the balance arm, the standard total weight of the crane arm, the standard length of the balance arm and the standard length of the crane arm stored in the storage database, calculating the distance from the cab when the luffing trolley works according to the received load weight, and sending the distance from the cab when the luffing trolley works to the control server;

the tower crane gravity analysis module is used for receiving the compared load weight sent by the control server, extracting the standard total weight of the balance arm and the balance weight on the balance arm, the standard total weight of the crane arm and the standard weight of the cab stored in the storage database, calculating the total gravity after the tower crane load, and sending the calculated total weight after the tower crane load to the control server;

the control server is used for receiving the distance from the amplitude variation trolley to the cab during working and receiving the total weight of the tower crane after load, which is sent by the tower crane gravity analysis module, from the working distance analysis module, extracting the initial safe distance of the amplitude variation trolley on the cargo boom, which is stored in the storage database, from the cab during working, subtracting the initial safe distance of the amplitude variation trolley on the cargo boom from the distance of the amplitude variation trolley on the cargo boom, calculating the movement distance of the amplitude variation trolley on the cargo boom, and controlling the amplitude variation trolley to move to the position of the distance on the cargo boom according to the calculated movement distance of the amplitude variation trolley on the cargo boom;

the suspender ground clearance detection module is used for detecting the height of a suspender of the tower crane from the ground, measuring the height of a standard section of the tower body, counting the number of the standard sections used by the tower body, calculating the suspender ground clearance according to the height of the standard section of the tower body multiplied by the number of the standard sections, recording the suspender ground clearance as h, and sending the suspender ground clearance to the control server;

the foundation bearing capacity detection module comprises a penetration analyzer and is used for detecting the foundation bearing capacity of the area where the tower crane base is located, the standard penetration test method is adopted, the foundation bearing capacity is obtained through the comparative analysis of the penetration analyzer and is marked as P, and the obtained foundation bearing capacity is sent to the control server;

the control server is used for receiving the ground clearance of the suspender sent by the suspender ground clearance detection module, receiving the ground bearing capacity sent by the ground bearing capacity detection module, extracting the area of the ground occupied by the ground stored in the storage database, calculating the tower crane roll stability safety coefficient, extracting the tower crane standard roll stability safety coefficient stored in the storage database, comparing the calculated tower crane roll stability safety coefficient with the tower crane standard roll stability safety coefficient, if the calculated tower crane roll stability safety coefficient is more than or equal to the tower crane standard roll stability safety coefficient, indicating that the tower crane meets the safe hoisting requirement, if the calculated tower crane roll stability safety coefficient is less than the tower crane standard roll stability safety coefficient, indicating that the tower crane does not meet the safe hoisting requirement, controlling the tower crane to stop hoisting work, and simultaneously informing related personnel to disassemble the tower crane, the tower crane side-tipping stability safety coefficient is sent to a display module;

the storage dataThe storehouse is used for storing wind speed values corresponding to the standard wind speed grades and safe wind speed grades of normal hoisting operation of the tower crane, storing the maximum safe weight of a hoisting load of the tower crane, storing the standard total weight of the balance arm and the balance weight on the balance arm, the standard total weight of the crane boom, the standard weight of the cab, the standard length of the balance arm and the standard length of the crane boom, and storing the initial safe distance of the luffing trolley on the crane boom and the area s of the ground occupied by the foundation_GroundMeanwhile, the standard side-tipping stability safety coefficient of the tower crane is stored;

the display module is used for receiving the wind speed grade and the tower crane roll stability safety coefficient sent by the control server and displaying the received wind speed grade and the tower crane roll stability safety coefficient;

further, the calculation formula of the distance from the amplitude variation trolley to the cab during working is as followsl' is the distance m from the cab of the luffing carriage during operation₃Expressed as the standard total weight of the balance arm and the balance weight on the balance arm, α is expressed as the angle between the balance arm and the balance arm pull rope, g is expressed as the gravity acceleration of the earth's surface, and is equal to 9.8m/s²，l₁Expressed as the standard length of the balance arm, m₁Expressed as the standard total weight of the boom, β as the angle between the boom and the boom guy rope, |₂Expressed as the standard length of a crane boom, theta is expressed as the included angle between the crane boom and a pull rope connected with the top of a tower crane at the position of the luffing trolley, and m₂Expressed as the weight of the load;

further, the SPT method comprises the following steps:

s1, drilling a soil layer needing a standard penetration test by a drilling machine, cleaning holes, replacing a standard penetration device, and measuring the depth size;

s2, vertically driving the penetrating device into a test soil layer, driving the penetrating device into the test soil layer by 15cm, counting the number of impacts, continuously penetrating the penetrating device into the soil by 30cm, and recording the number of hammering of the penetrating device, wherein the number is the standard number of penetration;

s3, extracting the penetrating device, taking out the soil sample in the penetrating device, carrying out identification description and recording, then changing a drilling tool to continue drilling to the next depth required to be tested, repeating the operation, and generally carrying out the test at intervals of 1.0-2.0 m;

s4, performing multiple tests on the same soil layer, then taking the average value of the hammering number, and obtaining the bearing capacity of the foundation by comparing and analyzing the hammering number through a penetration analyzer;

further, the calculation formula of the total weight of the tower crane after loading is G_{General assembly}＝(m₁+m₂+m₃+m₄)g，G_{General assembly}Expressed as the total weight of the tower crane after loading, m₁Expressed as the standard total weight of the boom, m₂Expressed as load weight, m₃Expressed as the standard total weight of the balance arm and the balance weight, m₄Expressed as the standard weight of the cab, g is the acceleration of gravity of the earth's surface, equal to 9.8m/s²；

Further, the calculation formula of the tower crane side-tipping stability safety coefficient is

k₁Expressed as the safety coefficient of the tower crane side-tipping stability, m_maxExpressed as the maximum safe weight of the tower crane hoisting load, g is expressed as the acceleration of gravity of the earth's surface, equal to 9.8m/s²L' denotes the distance from the cab of the luffing carriage during operation, G_{General assembly}Expressed as the total weight of the tower crane after load, h is the height of a suspender from the ground, v is the real-time wind speed value during the lifting operation of the tower crane in the day, and l₁Expressed as the standard length of the balance arm,/₂Expressed as the standard length of the boom, e is expressed as a natural number, equal to 2.718, P is expressed as the foundation bearing capacity, s_GroundExpressed as the area of the ground occupied by the foundation.

Has the advantages that:

(1) according to the building construction safety monitoring management system based on the big data, provided by the invention, the real-time wind speed value is detected through the wind speed detection module, whether the tower crane can start to work is judged, the load is detected through the load weight detection module, whether the crane is overloaded or not is judged, the occurrence of safety accidents of the tower crane is reduced, meanwhile, the total gravity of the tower crane is analyzed and calculated through the tower crane gravity analysis module, reliable reference data are provided for later-stage comprehensive calculation of the tower crane roll stability safety coefficient, the tower crane roll stability safety coefficient is comprehensively calculated through the stay cord included angle detection module, the working distance analysis module, the suspender ground clearance detection module and the foundation bearing capacity detection module in combination with the control server, whether the tower crane meets the safety lifting requirement is judged through comparison, the tower crane roll accident can be prevented, and.

(2) According to the invention, the working distance analysis module is used for calculating the distance between the amplitude variation trolley and the cab during working, the control server is used for calculating the movement distance of the amplitude variation trolley on the crane boom and controlling the amplitude variation trolley to move to the position, so that the stability of the tower crane is improved, and the safety range of the transportation load of the tower crane is increased.

(3) According to the invention, the control server controls the tower crane which does not meet the safe hoisting requirement through the tower crane side-tipping stability safety coefficient, stops hoisting work, and simultaneously informs related personnel to disassemble the tower crane, so that the tower crane side-tipping incidence rate is reduced, the confusion of personnel is avoided, and the life and property safety of people is guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a building construction safety monitoring and management system based on big data comprises a wind speed detection module, a load weight detection module, a stay cord included angle detection module, a working distance analysis module, a tower crane gravity analysis module, a suspender ground clearance detection module, a foundation bearing capacity detection module, a display module, a control server and a storage database;

the control server is respectively connected with the wind speed detection module, the load weight detection module, the working distance analysis module, the tower crane gravity analysis module, the suspender ground clearance detection module, the foundation bearing capacity detection module, the display module and the storage database, the storage database is respectively connected with the tower crane gravity analysis module and the working distance analysis module, and the stay cord included angle detection module is connected with the working distance analysis module;

the wind speed detection module comprises a wind speed sensor and is used for detecting the real-time wind speed of the tower crane during lifting operation on the same day, recording the detected real-time wind speed value as v, and sending the detected real-time wind speed value to the control server;

the control server is used for receiving the real-time wind speed value sent by the wind speed detection module, extracting the wind speed value corresponding to each standard wind speed grade stored in the storage database, comparing the received wind speed value with the wind speed value corresponding to each standard wind speed grade, screening the wind speed grade corresponding to the wind speed value, simultaneously extracting the safe wind speed grade of the normal hoisting operation of the tower crane stored in the storage database, comparing the screened wind speed grade with the safe wind speed grade of the normal hoisting operation of the tower crane, if the screened wind speed grade is greater than the safe wind speed grade of the normal hoisting operation of the tower crane, indicating that the tower crane cannot start working, if the screened wind speed grade is less than or equal to the safe wind speed grade of the normal hoisting operation of the tower crane, indicating that the tower crane can start working, controlling the tower crane to execute the hoisting work, and sending the compared wind speed grade to;

the load weight detection module comprises a gravity sensor and is used for detecting the load weight of the tower crane, detecting the load weight of the tower crane through the gravity sensor and sending the detected load weight to the control server;

the control server is used for receiving the load weight sent by the load weight detection module, extracting the maximum safe weight of the tower crane hoisting load stored in the storage database, comparing the received load weight with the stored maximum safe weight of the tower crane hoisting load, reducing the occurrence of tower crane safety accidents, indicating that the tower crane cannot work if the received load weight is greater than the maximum safe weight of the tower crane hoisting load, indicating that the tower crane can normally work if the received load weight is less than or equal to the maximum safe weight of the tower crane hoisting load, and respectively sending the compared load weights to the working distance analysis module and the tower crane gravity analysis module;

the pull rope included angle detection module comprises an angle sensor, the angle sensor is used for respectively detecting an included angle between a balance arm and a balance arm pull rope, an included angle between a crane arm and a crane arm pull rope and an included angle between the crane arm and a pull rope of a tower crane tip at the position of a luffing trolley, the angle sensor is used for detecting an included angle between the balance arm and the balance arm pull rope, the included angle is marked as alpha, an included angle between the crane arm and the crane arm pull rope is detected, the included angle is marked as beta, an included angle between the crane arm and a pull rope of the tower crane tip at the position of the luffing trolley is detected, and the detected included angle between the balance arm and the crane arm pull rope, the detected included angle between the crane arm and the crane arm pull rope and the detected included angle between the crane arm and the crane arm pull rope;

the working distance analysis module is used for receiving the compared load weight sent by the control server, receiving an included angle between a balance arm and a balance arm pull rope, an included angle between a crane arm and a crane arm pull rope and an included angle between the crane arm and a pull rope of a tower crane tip connected with the position of the luffing trolley sent by the pull rope included angle detection module, and extracting the standard total weight of the balance arm and the balance weight on the balance arm, the standard total weight of the crane arm, the standard length of the balance arm and the hoisting weight stored in the storage databaseThe standard length of the arm is calculated according to the received load weight, the distance from the amplitude variation trolley to the cab during working is calculated, and the calculation formula of the distance from the amplitude variation trolley to the cab during working is

l' is the distance m from the cab of the luffing carriage during operation₃Expressed as the standard total weight of the balance arm and the balance weight on the balance arm, α is expressed as the angle between the balance arm and the balance arm pull rope, g is expressed as the gravity acceleration of the earth's surface, and is equal to 9.8m/s²，l₁Expressed as the standard length of the balance arm, m₁Expressed as the standard total weight of the boom, β as the angle between the boom and the boom guy rope, |₂Expressed as the standard length of a crane boom, theta is expressed as the included angle between the crane boom and a pull rope connected with the top of a tower crane at the position of the luffing trolley, and m₂The load weight is expressed, and the distance from the amplitude variation trolley to a cab during working is sent to a control server;

the tower crane gravity analysis module is used for receiving the compared load weight sent by the control server, extracting the standard total weight of the balance arm stored in the storage database and the balance weight on the balance arm, the standard total weight of the crane arm and the standard weight of the cab, calculating the total gravity of the tower crane after load, and providing reliable reference data for later-stage comprehensive calculation of the tower crane roll stability safety coefficient, wherein the total weight calculation formula after the tower crane load is G_{General assembly}＝(m₁+m₂+m₃+m₄)g，G_{General assembly}Expressed as the total weight of the tower crane, m₁Expressed as the standard total weight of the boom, m₂Expressed as load weight, m₃Expressed as the standard total weight of the balance arm and the balance weight, m₄Expressed as the standard weight of the cab, g is the acceleration of gravity of the earth's surface, equal to 9.8m/s²And sending the calculated total weight of the tower crane after load to a control server;

the control server is used for receiving the distance from the amplitude variation trolley sent by the working distance analysis module to the cab during working, receiving the total weight of the tower crane after load sent by the tower crane gravity analysis module, extracting the initial safety distance of the amplitude variation trolley stored in the storage database on the crane boom, subtracting the initial safety distance of the amplitude variation trolley on the crane boom from the distance from the cab during working of the amplitude variation trolley, calculating the moving distance of the amplitude variation trolley on the crane boom, controlling the amplitude variation trolley to move to the position of the distance on the crane boom according to the calculated moving distance of the amplitude variation trolley on the crane boom, improving the stability of the tower crane and increasing the safety range of the transportation load of the tower crane;

the suspender ground clearance detection module is used for detecting the height of a suspender of the tower crane from the ground, measuring the height of a standard section of the tower body, counting the number of the standard sections used by the tower body, calculating the suspender ground clearance according to the height of the standard section of the tower body multiplied by the number of the standard sections, recording the suspender ground clearance as h, and sending the suspender ground clearance to the control server;

the foundation bearing capacity detection module comprises an injection analyzer and is used for detecting the foundation bearing capacity of the area where the tower crane base is located, and a standard injection test method is adopted and comprises the following steps:

s1, drilling a soil layer needing a standard penetration test by a drilling machine, cleaning holes, replacing a standard penetration device, and measuring the depth size;

s2, vertically driving the penetrating device into a test soil layer, driving the penetrating device into the test soil layer by 15cm, counting the number of impacts, continuously penetrating the penetrating device into the soil by 30cm, and recording the number of hammering of the penetrating device, wherein the number is the standard number of penetration;

s3, extracting the penetrating device, taking out the soil sample in the penetrating device, carrying out identification description and recording, then changing a drilling tool to continue drilling to the next depth required to be tested, repeating the operation, and generally carrying out the test at intervals of 1.0-2.0 m;

s4, multiple tests are carried out on the same soil layer, then the average value of the hammering number is taken, the hammering number is contrasted and analyzed through a penetration analyzer to obtain the bearing capacity of the foundation, the bearing capacity of the foundation is marked as P, and the obtained bearing capacity of the foundation is sent to a control server;

the control server is used for receiving the boom ground clearance sent by the boom ground clearance detection module and simultaneously receiving the ground bearingThe bearing capacity of the foundation sent by the bearing capacity detection module is extracted and the area of the ground occupied by the foundation stored in the storage database is stored, and the tower crane roll stability safety coefficient is calculated by the calculation formulak₁Expressed as the safety coefficient of the tower crane side-tipping stability, m_maxExpressed as the maximum safe weight of the tower crane hoisting load, g is expressed as the acceleration of gravity of the earth's surface, equal to 9.8m/s²L' denotes the distance from the cab of the luffing carriage during operation, G_{General assembly}Expressed as the total weight of the tower crane after load, h is the height of a suspender from the ground, v is the real-time wind speed value during the lifting operation of the tower crane in the day, and l₁Expressed as the standard length of the balance arm,/₂Expressed as the standard length of the boom, e is expressed as a natural number, equal to 2.718, P is expressed as the foundation bearing capacity, s_GroundThe area of the ground occupied by the foundation is expressed, the standard lateral-inclination stability safety coefficient of the tower crane stored in the storage database is extracted, the calculated lateral-inclination stability safety coefficient of the tower crane is compared with the standard lateral-inclination stability safety coefficient of the tower crane, the tower crane roll accident can be prevented, the life safety of constructors is protected, if the calculated tower crane roll stability safety coefficient is greater than or equal to the tower crane standard roll stability safety coefficient, the tower crane meets the safe hoisting requirement, if the calculated tower crane roll stability safety coefficient is less than the tower crane standard roll stability safety coefficient, the tower crane does not meet the safe hoisting requirement, the tower crane is controlled to stop hoisting work, meanwhile, related personnel are informed to disassemble the tower crane, so that the incidence rate of the tower crane heeling is reduced, the confusion of personnel is avoided, the life and property safety of people is guaranteed, and the tower crane heeling stability safety coefficient is sent to the display module;

the storage database is used for storing wind speed values corresponding to the standard wind speed grades and safe wind speed grades of normal hoisting operation of the tower crane, storing the maximum safe weight of a hoisting load of the tower crane, and storing the standard total weight of the balance arm and the balance weight on the balance arm, the standard total weight of the crane boom, the standard weight of a cab, the standard length of the balance arm and the hoisting loadStandard length of the boom, initial safety distance of the storage luffing trolley on the boom and the area s of the ground occupied by the foundation_GroundMeanwhile, the standard side-tipping stability safety coefficient of the tower crane is stored;

the display module is used for receiving the wind speed grade and the tower crane roll stability safety coefficient sent by the control server and displaying the received wind speed grade and the tower crane roll stability safety coefficient, so that related personnel can visually know the influence of the wind speed grade and the tower crane roll stability safety coefficient on the operation safety of the tower crane;

the foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.