CN113247802B

CN113247802B - Intelligent monitoring method for operation of large hoisting operation equipment

Info

Publication number: CN113247802B
Application number: CN202110652416.1A
Authority: CN
Inventors: 欧阳德; 钟建民; 杨建平; 谭杰; 张小龙; 杨辉
Original assignee: China Energy Construction Group Hunan Thermal Power Construction Co ltd
Current assignee: China Energy Construction Group Hunan Thermal Power Construction Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2024-05-17
Anticipated expiration: 2041-06-11
Also published as: CN113247802A

Abstract

The intelligent monitoring method for the operation of the large hoisting operation equipment comprises the steps of respectively installing an anti-collision early warning device, an overload early warning device and a wind speed early warning device on the large hoisting operation equipment, respectively acquiring the position, hoisting weight data and an environment wind speed signal of the large hoisting operation equipment during operation through the anti-collision early warning device, the overload early warning device and the wind speed early warning device, then sending the acquired position, hoisting weight data and the environment wind speed signal to an operation monitoring system, and intelligently determining the safety of the large hoisting operation equipment during operation through analysis and comparison, thereby realizing the intelligent monitoring of the large hoisting operation equipment operation. The invention carries out comparison and analysis on the collected position, hoisting weight data and the environmental wind speed signal, intelligently determines the safety of the large hoisting operation equipment during operation, has the characteristics of simple operation, practical detection and convenient management, effectively realizes the intelligent monitoring of the operation of the large hoisting operation equipment, and improves the safety degree of the operation.

Description

Intelligent monitoring method for operation of large hoisting operation equipment

Technical Field

The invention relates to a control method of large-scale hoisting operation equipment, in particular to an intelligent operation monitoring method of the large-scale hoisting operation equipment, which can rapidly and accurately judge the influence of various factors on the operation of the large-scale hoisting operation equipment according to the monitoring of the various factors of an operation environment and early warn or stop the operation when risks occur; belonging to the technical field of control of high-altitude operation equipment.

Background

Along with the continuous progress of industrial technology, large-scale construction of infrastructures is more and more, large-scale overhead operation is more and more, a large number of super-high engineering construction projects are developed, and the requirements of super-high hoisting operation are promoted to be increased; the large hoisting service is mainly applied to downstream industries such as ocean engineering equipment, electric power construction, aerospace engineering, infrastructure, coal chemical industry, petrochemical industry, metallurgical construction and the like, and the hoisting height of the large hoisting service is more than 120 meters.

However, with the increase of the height, various risks of hoisting are also increased in the ultra-high hoisting operation; many unsafe factors, including space collision, overweight load, and influence factors of ambient wind speed, may cause risk in the operation of large hoisting operation equipment, and thus need to be prevented. At present, although some monitoring measures are proposed mainly through manual judgment, the monitoring measures are quite single and lack of systemicity, especially lack of research on intelligent judgment, but factors affecting the risk are not paid attention to, and accidents are easy to occur, so that improvement is needed.

Patent literature reports which do not find the same technology as the present invention through patent search, but papers and patent literature reports which have a certain relation with the present invention mainly include the following:

1. Patent number is CN201921206620.5, the name is "large-scale machinery cooperation hoisting data early warning device", and the application is: the utility model discloses a large-scale mechanical cooperation hoisting data early warning device, which is used for hoisting operation of a plurality of cranes, and comprises an external environment detection sensor arranged on each crane rack, a moment sensor and a distance measuring sensor arranged on each crane lifting hook, a camera arranged at the front part of each crane operation room, a singlechip, a display module, an early warning value preset module, a memory, a wireless transmission module, a mobile client and an alarm module, wherein the external environment detection sensor comprises a weather sensor, a wind speed sensor and a temperature sensor; each camera and each sensor are respectively connected with the single chip microcomputer, the single chip microcomputer is connected with the display module, the early warning value preset module, the memory and the alarm module are respectively connected with the single chip microcomputer, the alarm module is connected with the display module, and the mobile client is connected with the single chip microcomputer through the wireless transmission module; the system comprises a single-chip microcomputer, a wireless transmission module, a storage module, a wireless transmission module and a wireless transmission system, wherein the single-chip microcomputer is used for collecting weather, wind speed, temperature, stress value, hoisting distance and image information data respectively, sending all data to the single-chip microcomputer, the pre-warning value preset module is used for setting the maximum wind speed value which can be born in the operation process of each crane and the stress limit value of each crane lifting hook respectively, the single-chip microcomputer is used for sorting all data of each collected crane, displaying the sorted data of each crane through the display module, simultaneously comparing the wind speed and the stress value of each collected crane with the corresponding pre-warning value preset by the pre-warning value preset module, and displaying the set pre-warning value and comparison result through the display module. Although the patent relates to wind speed monitoring, the influence of wind speed on hoisting is not carefully analyzed, and early warning treatment is also provided for monitoring the wind speed specifically.

2. Patent number is CN201911042103.3, and the name is "a construction tower crane anticollision early warning system taking into account wind speed influence", and the application is: the invention patent of Beijing university of building, this patent discloses a construction tower crane anticollision early warning system of taking into account wind speed influence, including anticollision early warning central processing unit and many construction tower cranes, anticollision early warning central processing unit includes: the first tower crane cross arm height determining unit module and the second tower crane cross arm height determining unit module determine the cross arm height H1 of the first tower crane and the cross arm height H2 of the second tower crane; the transverse arm height comparison unit module is used for comparing H1 and H2, determining a tower crane with a lower transverse arm height as a low-height tower crane, and determining a tower crane with a higher transverse arm height as a high-height tower crane; the lifting rope position determining unit module is used for determining the position of a lifting rope of the high-altitude tower crane; the cross arm position determining unit module is used for determining the position of a cross arm of the low-height tower crane; the space distance determining unit module is used for determining the space distance between the lifting rope and the cross arm; and the alarm indicating unit module is used for indicating the alarm devices of the first and second tower cranes to alarm when the space distance is smaller than the anti-collision distance. Although the influence of wind speed on hoisting operation is mainly considered, the wind speed is mainly considered from the aspect of collision prevention structure based on the existing wind speed limiting value; there is no consideration of the influence of different wind speeds on the hoisting operation.

3. Patent No. cn201720420684.X, entitled "safety construction early warning system for tower crane", applicant: the utility model patent of the information technology limited company of the Wuhan ordinary, this patent discloses a safe construction early warning system applied to the tower crane, including the weight sensor used for detecting the lifting weight of the lifting mechanism, the amplitude sensor used for detecting the working amplitude of the tower crane, the dip angle sensor used for detecting the inclined angle of the tower body, the wind speed sensor used for detecting the wind speed of the top end of the tower body, the altitude sensor used for detecting the lifting height of the tower crane boom, the gyro used for detecting the rotary angular velocity of the tower crane, the cab monitors the early warning terminal to include the control host computer, display screen and audible-visual annunciator; the control host and the display screen are arranged in the cab of the tower crane, and the audible and visual alarm is arranged on the outer wall of the cab. Each sensor can send the respective detection data to the control host in time, the control host can analyze the received data, and when the data exceeds a preset value, the audible and visual alarm is controlled to give out audible and visual alarm, and meanwhile, alarm information is displayed on the display screen to prompt an operating driver in time, so that the driver can process dangerous situations in time. The patent also mentions wind speed, but only as a control factor, and does not suggest how to take into account the influence of different wind speeds and wind directions.

Through careful analysis of the above patents, although they respectively relate to the research of intelligent monitoring hoisting operation, some analysis processing schemes of intelligent control hoisting operation are also proposed, through careful analysis, the patents simply consider some individual conditions as an influencing factor, and do not propose how to intelligently predict environmental influences of a system and different equipment conditions so as to avoid influence of various environmental factors on hoisting operation, thus the problems described above still occur in the practical application process, and further research improvement is still needed.

Disclosure of Invention

Aiming at the defects that the existing large hoisting operation equipment has limitation in considering the comprehensive influence of the environment in the hoisting operation and lacks in considering various environmental factors and equipment factors, the invention provides a novel intelligent monitoring method for the operation of the large hoisting operation equipment.

In order to achieve the purpose, the invention provides an intelligent monitoring method for the operation of large hoisting operation equipment, which is characterized in that an anti-collision early warning device, an overload early warning device and a wind speed early warning device are respectively arranged on the large hoisting operation equipment, the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively collecting the position, hoisting weight data and an environment wind speed signal when the large hoisting operation equipment operates, the collected position, hoisting weight data and the environment wind speed signal are sent to an operation monitoring system, the safety when the large hoisting operation equipment operates is intelligently determined through analysis and comparison, and the intelligent monitoring for the operation of the large hoisting operation equipment is realized.

Further, the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively acquiring the position, the hoisting weight data and the environmental wind speed signal of the large hoisting operation equipment during operation, the distance detection sensors are respectively arranged at a plurality of positions of the large hoisting operation equipment, the distance detection sensors at the plurality of positions are used for respectively acquiring the position signals of corresponding parts, the acquired position signals are sent to the monitoring system for position identification, the monitoring system is used for comparing and analyzing according to the safety detection distance and the early warning distance required by the cross operation range, and the alarm system is used for sending different alarm signals to carry out multiple alarms in different distance ranges so as to prevent collision among a plurality of cranes.

Further, the distance detection sensors at a plurality of positions respectively collect position signals of corresponding parts, namely four groups of detection devices are uniformly arranged on a boom lever of the large hoisting operation equipment according to the cross operation range, namely a first group of detection devices, a second group of detection devices, a third group of detection devices and a fourth group of detection devices; the first group of detection devices comprise a first radar sensor and a fifth radar sensor, the second group of detection devices comprise a second radar sensor and a sixth radar sensor, the third group of detection devices comprise a third radar sensor and a seventh radar sensor, the fourth group of detection devices comprise a fourth radar sensor and an eighth radar sensor, the four groups of detection devices formed by a plurality of radar sensors collect real-time positions of all parts during operation of the large hoisting operation equipment, the data collected by each radar sensor are sent to a monitoring system device, the comparison analysis of the monitoring system device is carried out to determine whether collision risks exist, and the real-time alarming and the operation stopping alarming are carried out according to the sizes of the risks.

Further, the step of sending out different alarm signals by the alarm system in different distance ranges to perform multiple alarms refers to that the distance range detected by the distance detection sensors at a plurality of positions is judged to be a safety detection distance and an early warning distance by the monitoring system, and when the early warning distance is reached, the monitoring system sends out different alarm signals by the alarm system in different distance ranges to perform multiple alarms; when the distance between the adjacent cranes is smaller than the determined limit value, the monitoring system stops the rotation operation of the arm support to one side of the adjacent cranes.

Further, the multiple alarms are particularly triple alarms, the multiple alarms respectively give out alarms at 15m, 10m and 3.5m, and when the multiple alarms give out alarms at 3.5m, the crane arm stops and rotates to one side of the adjacent object.

Further, the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively acquiring the position, the lifting weight data and the environmental wind speed signal of the large-scale lifting operation equipment, wherein a weight sensor and an amplitude sensor are arranged on the large-scale lifting operation equipment, the lifting weight data of the crane are acquired in real time, and a host system in signal connection with the weight sensor and the amplitude sensor is arranged, the host system comprises a display screen and an alarm system which are arranged in an operation room, the current operation weight of the crane is displayed in real time, the current operation weight is compared with the maximum lifting weight, and the alarm system alarms when the lifting load rate is more than or equal to 90%; when the hoisting load ratio exceeds 100% of the specified value of the corresponding amplitude, the host system automatically stops the upward lifting and amplifying operation and only allows the descending and amplifying operation.

Further, the weight sensor comprises a three-pulley type sensor and a plate-ring type sensor; the three-pulley type sensor is arranged on the fixed pulley system; the plate ring type sensor is arranged on a bearing support of the winding drum; the crane lifting weight is detected by a three-pulley sensor arranged on the fixed pulley system and/or a plate-ring sensor arranged on the bearing support of the winding drum.

Further, when the weight sensor is a three-pulley sensor, the three-pulley sensor is fixedly arranged on the arm support through the mounting frame and is matched with a pulley system on the crane, and a steel rope for the crane to hoist the weight penetrates through the three-pulley sensor.

Further, the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively collecting the position, the hoisting weight data and the environmental wind speed signal when the large hoisting operation equipment works, the wind speed measuring instrument is arranged at the top end and/or the bottom of the large hoisting operation equipment, the wind speed signal detected by the wind speed measuring instrument is transmitted to the wind speed monitoring information processing system through a wire or wirelessly, the wind speed information of the field operation area is monitored in real time, the wind speed monitoring information processing system sets a wind speed early warning value and a limit value according to the requirement of the crane safety operation rule, and early warning or operation stopping information is sent to operators at the wind speed early warning value and the limit value respectively, so that the operation in a dangerous environment is stopped in time.

Further, the wind speed measuring instrument is arranged at the top end and/or the bottom of the large hoisting operation equipment, or is arranged at the open position at the bottom of the large hoisting operation equipment; or the wind speed measuring instrument is respectively and simultaneously arranged at the top end of the large hoisting operation equipment and the bottom open position of the large hoisting operation equipment; the wind speed signal of the position where the wind speed measuring instrument is installed is detected in real time through the wind speed measuring instrument, the wind speed signal of the wind speed measuring instrument is collected through the sensor and is transmitted to the wind speed monitoring information processing system, and risk identification is carried out.

Further, the wind speed signal detected by the wind speed measuring instrument is transmitted to a wind speed monitoring information processing system through a wire or wirelessly, the wind speed monitoring information processing system performs identification according to set wind speed early warning or stopping conditions, early warning is performed when the wind speed reaches the early warning conditions, and warning and stopping operation are performed when the wind speed reaches the stopping conditions; the monitoring information processed by the wind speed monitoring information processing system is displayed in a state through a display screen, and meanwhile, a processing result is sent to a mobile phone of an operator of the large hoisting operation equipment, so that the operator of the large hoisting operation equipment can know the current state of the large hoisting operation equipment.

Further, the wind speed measuring instrument is respectively and simultaneously installed at the top end of the large hoisting operation equipment and the open position of the bottom of the large hoisting operation equipment, namely, a first wind speed measuring instrument is arranged at the top of a hoisting pulley of the large hoisting operation equipment, and a second wind speed measuring instrument is also arranged at any open position around the bottom of the large hoisting operation equipment; collecting wind speed signals of the lifting pulley position of the large-scale lifting operation equipment by a first wind speed measuring instrument, and collecting wind speed signals around the bottom of the large-scale lifting operation equipment by a second wind speed measuring instrument; and then the wind speed signals of the first wind speed measuring instrument and the second wind speed measuring instrument are respectively acquired through the sensors, the two paths of wind speed signals are simultaneously transmitted to the wind speed monitoring information processing system through wired or wireless signals, and the wind speed monitoring information processing system processes the two paths of wind speed signals.

Further, the wind speed monitoring information processing system processes the two paths of wind speed signals, namely, the wind speed signal acquired by the first wind speed measuring instrument is set to be a high-layer wind speed signal, the wind speed signal acquired by the second wind speed measuring instrument is set to be a low-layer wind speed signal, the high-layer wind speed signal and the low-layer wind speed signal are subjected to vector superposition to form a comprehensive wind speed signal, and the operation influence degree of the wind speed on the large hoisting operation equipment is judged through the comprehensive wind speed signal, so that whether the conditions of early warning or stopping operation are met or not is determined.

Further, the wind speed signals include the magnitude and the direction of the wind speed, when the high-level wind speed signals and the low-level wind speed signals are subjected to vector superposition, three-dimensional space superposition is performed according to the magnitude and the vector direction of the high-level wind speed signals and the low-level wind speed signals, so that a comprehensive wind speed signal is formed, and the comprehensive wind speed signal is used as a judgment value for monitoring the wind speed.

Further, the wind speed early warning value and the limit value are set according to the type and the model of the large hoisting operation equipment, and the determination principle is that the higher the hoisting operation range of the large hoisting operation equipment is, the lower the wind speed early warning value and the limit value are, the higher the wind speed early warning value and the limit value are, the operation is stopped; the wind speed early warning value is 3-4 levels; the stopping operation value is 5-7 level, and early warning or stopping operation information is sent to operators at the early warning value and the limiting value of the wind speed.

Further, the step of sending the early warning or stopping operation information to the operator at the early warning value and the limiting value of the wind speed is to set a wind speed monitoring information processing system in an operation control room of the large hoisting operation equipment, wherein the wind speed monitoring information processing system is provided with an information processing unit, a control output unit, an information storage unit, an information display unit and an information export interface unit, and an interface of a remote transmission unit is reserved; after wind speed signals of the wind speed measuring instrument are acquired through the sensor, the measured wind speed signals are input into the wind speed monitoring information processing system, after being processed through the information processing unit, the wind speed signals are displayed through the information display unit, meanwhile, the processed wind speed information is stored through the information storage unit, and the wind speed signal data obtained through the information export interface unit are used for external storage; when the wind speed monitoring information processing system is compared with a set value, the wind speed signal value is found to reach a wind speed early warning value or a limit value, an early warning signal or a stop operation signal is output through the control output unit, and an early warning or stop operation command of the operation of the large hoisting operation equipment is issued.

Further, the early warning or stopping operation command issued to the operation of the large hoisting operation equipment comprises real-time transmission and display at the PC end and the mobile phone end of the wind speed monitoring information processing system, and outputting the stopping operation command through the control output unit when the limit value is reached, outputting the stopping operation command to the control element of the operation control system of the large hoisting operation equipment, and stopping the operation of the control element.

The invention has the advantages that:

(1) The invention provides intelligent control on the operation of large and medium hoisting operation equipment in terms of early warning value and limit value from a plurality of factors such as collision prevention, overload prevention, environmental wind force and the like, and adopts real-time monitoring, so that the influence of collision, overload and over wind speed on the high-altitude hoisting operation in the hoisting operation process can be effectively monitored, and the effect of safe operation is achieved;

(2) The invention provides a mode that the position sensors collect the position information of each part of the hoisting operation equipment, the adjacent distance is monitored and the early warning is carried out, the position sensors are uniformly arranged according to the cross operation range between the adjacent cranes, the corresponding number of the position sensors can be set according to the requirement, and the position sensors are arranged at the corresponding positions, so that the applicability is strong.

(3) According to the invention, the weight sensor and the amplitude sensor are combined, and the host system is arranged to limit the hoisting weight, so that the prevention, control and early warning of the hoisting weight are realized, and the safety in the hoisting process is ensured; and the accuracy and the service life of the weight sensor are ensured through the control of the installation of the weight sensor, and the lifting weight is visually monitored and early-warned through a display and an alarm system of a host system.

(4) The invention provides a calculation method for spatial three-dimensional wind speed superposition, which carries out multidimensional wind speed measurement, and vector superposition forms comprehensive wind speed to calculate the influence of wind speed on operation, thereby effectively considering the influence of transverse wind, being more beneficial to determining the influence of actual wind power on operation and realizing intelligent judgment;

(5) The invention provides the control of the early warning value and the limit value according to the conditions of different operation equipment, has practicability for the current ultra-large-range operation condition, and is beneficial to improving the operation efficiency of the operation equipment;

(6) The invention adopts the real-time transmission and display of the PC end and the mobile phone end, so that the influence of wind speed on operation can be known at any time by equipment operators and ground control commanders.

Drawings

FIG. 1 is a schematic view of an anti-collision principle of an embodiment of the present invention;

FIG. 2 is a schematic view of the mounting of the anti-collision device position sensor on the lift arm;

FIG. 3 is a schematic illustration of the cross-work scope of a hoisting work apparatus;

FIG. 4 is a schematic diagram of an overload protection structure of a flat arm tower crane;

FIG. 5 is a schematic view of an overload protection structure of the crawler crane;

FIG. 6 is a schematic installation diagram of a wind speed measurement and control system of a large hoisting operation device;

FIG. 7 is a schematic diagram of a wind speed measurement and control system for a large hoisting operation equipment according to another embodiment of the invention;

FIG. 8 is a schematic installation diagram of a wind speed measurement and control system for a large hoisting operation device according to another embodiment of the invention.

Detailed Description

The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As can be seen from fig. 1, the invention relates to an intelligent monitoring method for the operation of large hoisting operation equipment, which adopts a ZSC70240/80t horizontal self-elevating tower crane, and is an intelligent monitoring method for the operation of an ultra-high horizontal self-elevating tower crane; the anti-collision early warning device, the overload early warning device and the wind speed early warning device are respectively arranged on the horizontal jack-up tower crane, the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively collecting the position, the hoisting weight data and the environmental wind speed signal of the horizontal jack-up tower crane during operation, the collected position, the hoisting weight data and the environmental wind speed signal are sent to the horizontal jack-up tower crane operation monitoring system, the safety of the horizontal jack-up tower crane during operation is intelligently determined through analysis and comparison, and the intelligent monitoring of the horizontal jack-up tower crane operation is realized.

The following description is specific to the drawings, as shown in fig. 1, the horizontal jack-up tower crane 1 comprises a base 11, a tower body 12 and a boom 13, the tower body 12 is vertically arranged at the upper end of the base 11, the boom 13 is horizontally arranged at the upper end of the tower body 12, a driver cab 3 is arranged between the tower body 12 and the boom 13, and a plurality of radar sensors 14 are arranged on the boom 13 of the horizontal jack-up tower crane 1 to detect the distance between adjacent cranes and prevent the cranes from collision in the cross operation range; uniformly arranging a plurality of radar sensors on the arm support 13 through a connecting device; a display host and an alarm system are arranged in the driver operating room 3, the safety detection distance and the early warning distance of the radar sensors are set through the display host, the distance between the current adjacent cranes detected by each radar sensor can be displayed on the display host in real time, and different alarm signals are sent out by the alarm system in different distance ranges to carry out multiple alarms; when the distance between the adjacent cranes is smaller than a predetermined value, the boom 13 is stopped and swiveled to a side away from the adjacent cranes.

Meanwhile, a weight sensor and an amplitude sensor are arranged on the horizontal self-elevating type tower crane 1, crane lifting weight data are collected in real time, a host system in signal connection with the weight sensor and the amplitude sensor is arranged, the host system comprises a display screen and an alarm system which are arranged in an operation room, the current operation weight of the crane is displayed in real time, the current operation weight is compared with the maximum lifting weight, and when the lifting load rate is more than or equal to 90%, the alarm system alarms; when the lifting load rate exceeds the specified value of the corresponding amplitude and is smaller than 100% of the specified value, the host system automatically stops the upward lifting and amplifying actions and allows the descending and reducing actions; in this embodiment, the upward lifting and amplifying action or the downward and reducing action is controlled by a relay.

In addition, a WFS-1-1 wind speed measuring instrument is arranged on an upper cross beam of a cab of the horizontal jack-up type tower crane 1, a wind speed signal detected by the wind speed measuring instrument is transmitted to a wind speed monitoring information processing system in the cab through a wire, the wind speed monitoring information processing system monitors wind speed information of an on-site operation area in real time, the wind speed monitoring information processing system sets a wind speed early warning value and a wind speed limit value according to crane safety operation rule requirements, and early warning or operation stopping information is sent to operators at the wind speed early warning value and the wind speed limit value respectively to timely stop operation in a dangerous environment.

In the embodiment, the radar sensors of the anti-collision early warning prevention and control device of the horizontal self-elevating tower crane 1 are uniformly arranged according to the cross operation range between adjacent cranes, firstly, a corresponding number of radar sensors can be arranged according to the cross operation range between the cranes, and meanwhile, the radar sensors can be arranged at corresponding positions according to the cross operation range, so that the applicability is strong; the radar sensor is connected to the side wall of the arm rod of the crane arm 132 through a connecting device, so that the connection stability is high; the radar sensor can send different alarm signals to carry out multiple alarms in different distance ranges by the alarm system, has strong safety and can prevent the cranes from collision with each other to the greatest extent.

The arm support 13 comprises a balance arm 131 and a lifting arm 132 which are respectively positioned at two sides of the tower body 12, and the length of the lifting arm 132 is longer than that of the balance arm 131; the plurality of radar sensors are uniformly arranged on two sides of the arm support 13 through the connecting device, namely the radar sensors are arranged on two sides of an arm rod of the crane arm 132 through the connecting buckle 4, the connecting plate 6 and the connecting post 5; the connecting buckles 4 are connected to the side walls on two sides of the arm rod of the crane arm 132, the connecting plates 6 are connected to the connecting buckles 4, and the connecting buckles 4 on the side walls on two sides of the arm rod of the crane arm 132 are connected through the connecting posts 5; the radar sensor is arranged on the connection plate 6.

The connecting buckles 4 on the side walls on the two sides of the arm rod of the crane arm 132 are connected through the connecting posts 5, so that the connecting buckles 4 are more firmly connected, and loose falling is prevented; the connecting plate 6 is connected to the connecting buckle 4, and the radar sensors are arranged on the connecting plate 6, so that the connecting plate 6 can be arranged at different positions of the connecting buckle 4 according to the requirement, one skilled in the art can arrange one or more connecting plates 6 on one connecting buckle 4 according to the requirement, namely one or more radar sensors can be arranged on one connecting buckle 4; the connector link 4 of jib boom 132 armed lever both sides lateral wall passes through spliced pole 5 to be connected, and spliced pole 5 can further make the connector link 4 of jib boom 132 armed lever both sides lateral wall connect more firm, prevents that connector link 4 from becoming flexible, and then guarantees radar sensor's detection accuracy.

Wherein, the connecting buckle 4 is provided with a plurality of first connecting holes 41 for connecting the connecting column 5 and second connecting holes for the cables to pass through; one or more removable connection plates 6 may be provided on each connection buckle 4.

As shown in fig. 2, the connecting post 5 passes through the first connecting hole 41 and can connect the connector link 4, so that the connector link 4 is more stably fixed on the boom 132; the second connecting hole on the connecting buckle 4 is used for the cable to pass through, so that the cable can be prevented from being knotted, and the testing stability of the radar sensor is further ensured; the connecting plate 6 is detachably connected to the connecting buckle 4; the position of the radar sensor can be conveniently adjusted according to the requirement, and meanwhile, the radar sensor can be conveniently replaced and maintained.

The connecting buckle 4 is in an L shape, the L-shaped connecting buckle 4 comprises a first buckle plate 42 and a second buckle plate 43, the first buckle plate 42 is used for connecting the connecting plates 6, the second buckle plate 43 is used for being connected with the arm rod of the crane arm 132, the connecting buckles 4 which are oppositely arranged on two sides of the arm rod of the crane arm 132 are respectively provided with one connecting plate 6, and each connecting plate 6 is respectively provided with a radar sensor; connecting posts 5 are arranged between connecting buckles 4 oppositely arranged on the side walls of the two sides of the arm rod of the crane arm 132; two connecting buckles 4, two connecting plates 6, two radar sensors and one connecting column 5 which are oppositely arranged on the side walls of the two sides of the arm rod of the crane arm 132 jointly form a group of detection devices.

As shown in fig. 2, the connecting buckle 4 of the present embodiment is L-shaped, wherein a first buckle plate 42 of the L-shape is partially connected with an arm lever of the boom 132, a second buckle plate 43 of the L-shape is partially connected with the connecting plate 6, and a radar sensor is further disposed on the connecting plate 6, so that a connection position of the connecting plate 6 on the second buckle plate 43 can be adjusted according to a setting requirement of the radar sensor.

Four groups of detection devices are uniformly arranged on the arm rod of the crane arm 132 according to the cross operation range, namely a first group of detection devices 21, a second group of detection devices 22, a third group of detection devices 23 and a fourth group of detection devices 24; the first set of detection means 21 comprises a first and a fifth radar sensor, the second set of detection means 22 comprises a second and a sixth radar sensor, the third set of detection means 23 comprises a third and a seventh radar sensor, and the fourth set of detection means 24 comprises a fourth and an eighth radar sensor 52, 62. The detection range is wide, and the collision between the horizontal self-elevating tower crane 1 and an adjacent object, such as the crawler crane 7, can be prevented. The rear end of the arm lever of the boom 132 is also provided with a height encoder 16, the height encoder 16 is arranged on a reel of the winch, and the lifting height position of the lifting hook is determined through the height encoder.

The crawler crane 7 comprises a crawler crane auxiliary arm 71 and a lifting hook 72, and the lifting hook 72 is connected to the crawler crane auxiliary arm 71 through a steel wire rope 73; the swing direction of the sub-arm 71 of the crawler crane 7 is shown by line N in fig. 3, the swing locus of the sub-arm 71 of the crawler crane 7 is shown by line S in fig. 3, and the cross-working range of the crawler crane 7 and the tower crane 1 is shown by region M in fig. 3.

The radar sensor 2 used in the embodiment is a millimeter wave radar sensor, the wavelength of millimeter wave is between centimetre wave and light wave, the advantages of microwave guidance and photoelectric guidance are achieved, and the millimeter wave radar sensor is small in size, easy to integrate and high in spatial resolution, and the detection accuracy is convenient to improve. The detection range of the radar sensor in the embodiment for small obstacles is 0.7-10 m, and the detection range of the radar sensor for large obstacles is 0.7-30 m; the detection range of the radar sensor in the embodiment is about 50 degrees based on the vertical central axis of the radar sensor, namely the detection horizontal coverage angle of the radar sensor is 100 degrees; the detection range of the radar sensor in this embodiment is 7 degrees above and below the boom 132, i.e., the detection pitch angle of the radar sensor is 14 degrees. The detection range and detection angle of the radar sensor can also be set according to actual working conditions by a person skilled in the art.

The method comprises the steps that a safety detection distance and an early warning distance of a radar sensor are set through a display host, wherein the safety detection distance is set to be larger than 15m, and the early warning distance is set to be smaller than 15 m; the distance between the boom 132 and the crawler crane sub-arm 71 detected by each radar sensor is displayed on the display host in real time, and when the distance is less than 15m, an alarm is issued.

Wherein, the alarm system sends out different alarm signals to carry out multiple alarms in different distance ranges, the multiple alarms are in particular triple alarms, the multiple alarms respectively send out alarms at 15m, 10m and 3.5m, and when sending out the alarm of 3.5m, the crane arm 132 stops and rotates to one side far away from the auxiliary arm 71 of the crawler crane.

Wherein, respectively send out the alarm at 15m, 10m and 3.5m, specifically: when the detection distance of the radar sensor is smaller than 15m, displaying the radar sensor on the display host as a yellow state; when the detection distance of the radar sensor is smaller than 10m, displaying the radar sensor on the display host as a red state; when the detection distance of the radar sensor is smaller than 3.5m, all radar sensors on the display host are in red states.

Wherein, send out different alarm signal and carry out multiple alarm by alarm system in different distance ranges, wherein different alarm signal specifically means: when the detection distance of the radar sensor is smaller than 15m, the alarm system gives out intermittent alarm; when the detection distance of the radar sensor is smaller than 10m, the alarm system gives continuous alarm; when the detection distance of the radar sensor is less than 3.5m, the alarm system gives out continuous emergency alarm.

Meanwhile, an overload early warning prevention and control system of the crane is arranged on the horizontal self-elevating type tower crane 1, is an overload early warning prevention and control system based on a moment limiter, adopts a modularized structure and consists of an instrument host, an overload limiter, a lower computer and a sensor. The system instrument host is a microcomputer host and is used for displaying, operating and signal processing. The signal acquisition, conversion and transmission are completed by an overload limiter, a lower computer and a sensor; the overload limiter is used for setting an overrun parameter; the lower computer is used for converting and transmitting signals; the sensor is used for signal acquisition. The sensors include a weight sensor 201, an amplitude encoder 202, and a gyratory sensor 203. The weight sensor 201, the amplitude encoder 202 and the rotation sensor 203 collect crane lifting weight data in real time, and a host system 204 in signal connection with the weight sensor 201, the amplitude encoder 202 and the rotation sensor 203 is arranged, as shown in fig. 4 and 5; the host system 204 comprises a display screen and an alarm system which are arranged in an operation room, the current working weight of the crane is displayed in real time, the current working weight is compared with the maximum lifting weight, and when the lifting load rate is more than or equal to 90%, the alarm system alarms; when the hoisting load ratio exceeds the specified value of the corresponding amplitude and is greater than 100% of the specified value, the host system 204 automatically stops the upward lifting and amplifying actions and allows the descending and reducing actions; in this embodiment, the upward lifting and amplifying action or the downward and reducing action is controlled by a relay.

In this embodiment, the weight sensor 201 is a plate-ring type sensor for detecting the lifting weight of the crawler crane, and is mounted at the fixed end of the steel wire rope at the top end of the arm lever of the crane arm 132; the amplitude encoder 202 is arranged on an output shaft of an amplitude changing mechanism at the rear part of an arm lever of the crane arm 132, and the rotary sensor 203 is arranged on a rotary disc of the tower crane; the weight sensor 201 and the rotation sensor 203 adopt plate ring type sensors, can be better adapted to the crawler crane to monitor and pre-warn the lifting weight, prevent, control and pre-warn the lifting weight, and ensure the safety in the lifting process.

In this embodiment, in order to ensure that the signal line of the plate ring sensor does not swing to cause damage to the signal line due to external force factors such as swing of the crane or strong wind, the signal line of the plate ring sensor is routed along the fixing rope, and the length of the signal line of the plate ring sensor is slightly greater than that of the fixing rope.

In this embodiment, in order to ensure that the signal line of the plate-type sensor is not broken by bending, the signal line is led out perpendicularly to the plane in which the signal line lead-out hole of the plate-type sensor is located.

In the embodiment, the accuracy of the plate-ring type sensor is that the weight display error is less than or equal to +/-3 percent and is not more than 0.5t; the high-precision weight sensor ensures the accuracy of overload early warning and ensures the safety to a greater extent.

In this embodiment, the host system 204 is disposed in the control room, and the display screen and the alarm system of the host system 204 are also disposed in the control room, so that related personnel can visually understand the current lifting weight condition through the display screen in real time, and timely understand the early warning condition, thereby ensuring the safety in the lifting process.

In this embodiment, the system further includes a mobile terminal app, where the app accesses the host system, so as to implement real-time monitoring and early warning of the mobile terminal.

In addition, a wind speed measuring instrument 301 is installed at the top end of the horizontal jack-up tower crane 1, as shown in fig. 6, and wind speed signals detected by the wind speed measuring instrument 301 are transmitted to a wind speed monitoring information processing system 303 through a lead 302, the wind speed information of an on-site operation area is monitored in real time, the wind speed monitoring information processing system sets wind speed early warning values and limit values according to crane safety operation rule requirements, and early warning or operation stopping information is sent to operators at the wind speed early warning values and the limit values respectively, so that operation in dangerous environments is stopped in time. The WFS-1-1 wind speed measuring instrument collects wind speed signals of the wind speed measuring instrument through a sensor, and transmits the wind speed signals to a wind speed monitoring information processing system for risk identification.

The wind speed monitoring information processing system performs recognition according to a set wind speed early warning or stopping condition, performs early warning when the wind speed reaches the early warning condition, and performs warning and stops working when the wind speed reaches the stopping condition; the monitoring information processed by the wind speed monitoring information processing system is displayed in the wind power state through a display screen in a cab, and meanwhile, the processing result is sent to mobile phones of operators and ground commanders of the horizontal jack-up tower crane, so that the operators and ground commanders of the horizontal jack-up tower crane know the current wind power state of the horizontal jack-up tower crane.

The monitoring information comprises real-time wind speed and wind direction synchronously displayed on the local side, the webpage side and the mobile phone side of the horizontal jack-up tower crane in real time under the field operation environment of the crane, and the wind speed monitoring information processing system is used for detecting the wind speed according to the detected wind speed. When the wind direction exceeds the limit value, an alarm signal is sent out, an alarm state is displayed, and alarm real-time data information is recorded.

The wind speed early warning value and the limit value are set according to the type and the model of the horizontal jack-up tower crane, and the determination principle is that the higher the hoisting operation range of the horizontal jack-up tower crane is, the lower the wind speed early warning value and the limit value of the operation stop are; the wind speed early warning value is of level 4; the stop operation value is 6 grades, and early warning or stop operation information is sent to operators at the wind speed early warning value and the limit value.

The wind speed monitoring information processing system is provided with an information processing unit, a control output unit, an information storage unit, an information display unit and an information export interface unit, and an interface of a remote transmission unit is reserved; after wind speed signals of the wind speed measuring instrument are acquired through the sensor, the measured wind speed signals are input into the wind speed monitoring information processing system, after being processed through the information processing unit, the wind speed signals are displayed through the information display unit, meanwhile, the processed wind speed information is stored through the information storage unit, and the wind speed signal data obtained through the information export interface unit are used for external storage; when the wind speed monitoring information processing system is compared with a set value, the wind speed signal value is found to reach a wind speed early warning value or a limit value, an early warning signal or a stop operation signal is output through the control output unit, and an early warning or stop operation command of horizontal jack-up tower crane operation is issued.

The early warning or operation stopping command issued to the horizontal self-elevating tower crane operation comprises real-time transmission and display at the PC end and the mobile phone end of the wind speed monitoring information processing system, and the operation stopping command is output to the control element of the operation control system of the horizontal self-elevating tower crane through the control output unit when the limit value is reached, and the operation of the control element is stopped.

Meanwhile, monitoring video cameras 15 are respectively arranged at the top end of the crane boom, the hoisting mechanism, the rotating tail part and the operating room, and the conditions of the sensors are respectively monitored through the monitoring video cameras so as to prevent the sensor failure state.

The specific operation is monitored as follows:

(1) Acquisition of lifting weight, moment and amplitude data

The weight sensor and the angle sensor of the original crane equipment can be reserved for normal use, the moment instrument has a data output function and can transmit data, and the reserved moment instrument can be reserved for normal use, otherwise, the moment instrument is replaced.

(2) Acquisition of elevation and descent depth data

The crane adopts a DXZ type height sensor to realize real-time collection of the height of the lifting hook, signals are processed by a monitoring system host, and the crane also needs to combine an amplitude sensor and the length of an additional standard section to realize accurate positioning of the height of the lifting hook. The signal is displayed and recorded by the monitoring system host.

(3) Wind speed signal acquisition

And a WFS-1-1 wind speed sensor is added, 36-dimensional pulse precise counting is adopted, an algorithm is optimized, and accurate measurement is performed. The signal is displayed and recorded by the monitoring system host.

(4) Azimuth signal acquisition

The WFM-1 type azimuth sensor is added, and the relative position of the large arm of the tower crane is positioned by adopting the geomagnetic principle. The signal is displayed and recorded by the monitoring system host.

(5) Operation instruction acquisition

A WT-SMS-V2 version signal acquisition unit is used. And each path of command signal is isolated by adopting an optical coupler, so that the safety and stability of the monitoring system and the PLC electrical system are ensured. And acquiring the action state of the operation instruction, transmitting the data to the monitoring host, and displaying the acquired operation instruction signal on a screen by the monitoring host and simultaneously storing the operation instruction signal in a hard disk of the monitoring host.

(6) Video status

The flat arm type tower crane is characterized in that a monitoring video camera is arranged at the end part of a crane arm, a hoisting mechanism and an amplitude changing mechanism, and is arranged in an operating room. The crawler crane monitoring video camera is arranged at the top end of the crane boom, the hoisting mechanism, the rotation tail part and the operating room, so that real-time monitoring of a crane lifting point area, an operation area and an operation area is realized. Meanwhile, a hard disk video recording system and a display are installed in an operation room to store and display video data.

(7) Working parameter statistics

The working time is as follows: the state of each mechanism is obtained by reading the contacts and then transmitted to the monitoring host, and the host accurately displays the signals to seconds on a screen and simultaneously stores the signals in a hard disk of the monitoring host. Duty cycle: and transmitting the data acquired by the weight sensor to a monitoring host, judging whether the data undergo a 0-1-0 process or not through software, and if so, recording a working cycle. Accumulating the working time: the software of the monitoring host accumulates the total time of the previously counted work cycle, and the display and the storage are synchronized on the monitoring host.

Example two

The wind speed monitoring principle of the second embodiment is the same as that of the first embodiment, but the adopted equipment is different, so that the arrangement mode of the sensor is different, as shown in fig. 7; the intelligent monitoring method for the operation of large hoisting operation equipment comprises the steps that a Ma Nituo W g 750t crawler crane is adopted, a cross operation range is included between a crawler crane auxiliary arm 271 and a crane arm 232, and four groups of detection devices are arranged according to the cross operation range between the crawler crane auxiliary arm 271 and the crane arm 232; the operation position of the crawler crane is monitored in real time through four groups of detection devices; the principle of monitoring is the same as the example.

Meanwhile, a weight sensor 201 and an amplitude sensor 202 are arranged on the crawler crane, crane lifting weight data are acquired in real time through the weight sensor 202 and the amplitude sensor 203, a host system 204 in signal connection with the weight sensor 202 and the amplitude sensor 203 is arranged, the host system 204 comprises a display screen and an alarm system which are arranged in an operation room, the current operation weight of the crane is displayed in real time, the current operation weight is compared with the maximum lifting weight, and when the lifting load rate is more than or equal to 90%, the alarm system alarms; when the lifting load rate exceeds the specified value of the corresponding amplitude and is smaller than 100% of the specified value, the host system automatically stops the upward lifting and amplifying actions and allows the descending and reducing actions; in this embodiment, the upward lifting and amplifying action or the downward and reducing action is controlled by a relay.

In this embodiment, the weight sensor is a plate ring type sensor for detecting the hoisting weight of the crawler crane, and is mounted on the bearing support of the winding drum 2, and because the crane model is Ma Nituo watts 750t crawler crane in this embodiment, the plate ring type sensor can better adapt to the crawler crane to realize the monitoring and early warning of the hoisting weight.

The invention combines the weight sensor 202 and the amplitude sensor 203, and is provided with the host system 204 to limit the lifting weight, thereby realizing the prevention, control and early warning of the lifting weight and ensuring the safety in the lifting process.

In this embodiment, host system sets up in controlling the room, and host system's display screen and alarm system also all set up in controlling the room, and relevant personnel can be in real time through the visual understanding of display screen current lifting weight condition to in time know the early warning condition, ensured the security of lifting by crane in-process.

In this embodiment, the system further includes a mobile terminal app, where the app accesses the host system, so as to realize real-time monitoring and early warning of the mobile terminal

In addition, wind speed measuring instruments are respectively arranged at the top and the bottom of the Ma Nituo W g 750t crawler crane, wind speed signals detected by the wind speed measuring instruments are transmitted to a wind speed monitoring information processing system through wires, the wind speed information of an on-site operation area is monitored in real time, the wind speed monitoring information processing system sets wind speed early warning values and limiting values according to crane safety operation rule requirements, and early warning or operation stopping information is respectively sent to operators at the wind speed early warning values and the limiting values, so that operation in dangerous environments is stopped in time.

The wind speed measuring instrument is arranged at the top end and the bottom of the Ma Nituo W750 t crawler crane, namely the wind speed measuring instrument is arranged at the top end of the Ma Nituo W750 t crawler crane, and simultaneously the wind speed measuring instruments are respectively arranged at the bottom open positions of the Ma Nituo W750 t crawler crane; the wind speed signal of the position where the wind speed measuring instrument is installed is detected in real time through the wind speed measuring instrument, the wind speed signal of the wind speed measuring instrument is collected through the sensor and is transmitted to the wind speed monitoring information processing system, and risk identification is carried out.

The wind speed signal detected by the wind speed measuring instrument is transmitted to a wind speed monitoring information processing system through a lead, the wind speed monitoring information processing system performs identification according to set wind speed early warning or stopping conditions, early warning is performed when the wind speed reaches the early warning conditions, and alarming and stopping operation are performed when the wind speed reaches the stopping conditions; the monitoring information processed by the wind speed monitoring information processing system is displayed in a state through a display screen, and meanwhile, a processing result is sent to a mobile phone of an operator of the Ma Nituo W g 750t crawler, so that the operator of the Ma Nituo W g 750t crawler knows the current state of the Ma Nituo W g 750t crawler.

The monitoring information synchronously displays the real-time wind speed of the crane in the field operation environment at the local end, the webpage end and the mobile phone end of the Ma Nituo W g 750t crawler crane in real time, judges the wind power level according to the detected wind speed, sends out an alarm signal and displays an alarm state when exceeding a limit value, and records alarm real-time data information.

The wind speed measuring instrument is respectively and simultaneously installed at the open positions of the top end of the Ma Nituo W750 t crawler crane and the bottom of the Ma Nituo W750 t crawler crane, namely, a first wind speed measuring instrument 701 is arranged at the top of a lifting pulley of the Ma Nituo W750 t crawler crane, and a second wind speed measuring instrument 702 is also arranged at any open position around the bottom of the Ma Nituo W750 t crawler crane (as shown in the attached figure 8); collecting wind speed signals of the lifting pulley positions of the Ma Nituo W g 750t crawler crane by a first wind speed measuring instrument, and collecting wind speed signals around the bottom of the Ma Nituo W g 750t crawler crane by a second wind speed measuring instrument; and then the wind speed signals of the first wind speed measuring instrument and the second wind speed measuring instrument are respectively acquired through the sensors, the two paths of wind speed signals are simultaneously transmitted to the wind speed monitoring information processing system through wired or wireless signals, and the wind speed monitoring information processing system processes the two paths of wind speed signals.

The wind speed monitoring information processing system processes the two paths of wind speed signals, namely, the wind speed signal acquired by the first wind speed measuring instrument is set to be a high-layer wind speed signal, the wind speed signal acquired by the second wind speed measuring instrument is set to be a low-layer wind speed signal, the high-layer wind speed signal and the low-layer wind speed signal are subjected to vector superposition to form a comprehensive wind speed signal, and the operation influence degree of wind speed on the Ma Nituo W750 t crawler crane is determined through the comprehensive wind speed signal, so that whether the conditions of early warning or operation stopping are achieved or not is determined.

When the high-level wind speed signal and the low-level wind speed signal are subjected to vector superposition, three-dimensional space superposition is performed according to the magnitude and the vector direction of the high-level wind speed signal and the low-level wind speed signal to form a comprehensive wind speed signal, and the comprehensive wind speed signal is used as a judgment value of the monitored wind speed.

The wind speed early warning value and the limit value are set according to the type and the model of the Ma Nituo W750 t crawler crane, and the determination principle is that the higher the hoisting operation range of the Ma Nituo W750 t crawler crane is, the lower the wind speed early warning value and the limit value are, the higher the wind speed early warning value and the limit value are; the wind speed early warning value is 3-4 levels; the stopping operation value is 5-7 level, and early warning or stopping operation information is sent to operators at the early warning value and the limiting value of the wind speed.

The early warning or stopping operation information is sent to an operator at the early warning value and the limiting value of the wind speed, wherein a wind speed monitoring information processing system is arranged in a Ma Nituo W g 750t crawler crane operation control room, and is provided with an information processing unit, a control output unit, an information storage unit, an information display unit and an information export interface unit, and an interface of a remote transmission unit is reserved; after wind speed signals of the wind speed measuring instrument are acquired through the sensor, the measured wind speed signals are input into the wind speed monitoring information processing system, after being processed through the information processing unit, the wind speed signals are displayed through the information display unit, meanwhile, the processed wind speed information is stored through the information storage unit, and the wind speed signal data obtained through the information export interface unit are used for external storage; when the wind speed monitoring information processing system is compared with a set value, the wind speed signal value is found to reach a wind speed early warning value or a limit value, an early warning signal or a work stopping signal is output through the control output unit, and an early warning or work stopping command of Ma Nituo W g 750t crawler crane work is issued.

The early warning or operation stopping command issued to the Ma Nituo W750 t crawler crane comprises real-time transmission and display at a PC end and a mobile phone end of the wind speed monitoring information processing system, and when the wind speed monitoring information processing system is at a limit value, the operation stopping command is output through a control output unit, and the operation stopping command is output to a control element of a Ma Nituo W750 t crawler crane operation control system, so that the operation of the control element is stopped.

Example III

The operation principle method of the third embodiment is the same as that of the first embodiment, except that in the aspect of wind speed measurement and monitoring, as shown in fig. 8, an ultra-high level jack-up type tower crane (the lifting height is more than 110 meters) is adopted, a WFS-1-1 wind speed measuring instrument 601 is installed on an upper cross beam of a cab of the ultra-high level jack-up type tower crane, meanwhile, a WFS-1-1 wind speed measuring instrument 602 is also installed on a base of the ultra-high level jack-up type tower crane, wind conditions of the top surface and the bottom of the ultra-high level jack-up type tower crane are respectively monitored through the two WFS-1-1 wind speed measuring instruments, wind speed signals detected by the wind speed measuring instruments are simultaneously transmitted to a wind speed monitoring information processing system in a cab through wires, the wind speed monitoring information processing system monitors on-site operation area wind speed information in real time, the wind speed monitoring information processing system sets a wind speed early warning value and a limit value according to the safety operation rule requirement of the crane, and timely recognizes risks according to wind speed signals of the WFS-1-1 wind speed measuring instrument, and sends early warning or stops dangerous operation environment operation under early warning values and limit values respectively.

The principle of identification is as follows: when the wind speed reaches the early warning condition, early warning is carried out, and when the wind speed reaches the stopping condition, alarming is carried out and the operation is stopped; the monitoring information processed by the wind speed monitoring information processing system is displayed in the wind power state through a display screen in a cab, and meanwhile, the processing result is sent to the mobile phones of the operators and the ground commanders of the ultra-high-level self-elevating tower crane, so that the operators and the ground commanders of the ultra-high-level self-elevating tower crane know the current wind power state of the ultra-high-level self-elevating tower crane.

The monitoring information comprises real-time wind speed and wind direction synchronously displayed on the local side, the webpage side and the mobile phone side of the ultra-high level self-elevating tower crane in real time under the field operation environment of the crane, and the wind speed monitoring information processing system is used for detecting the wind speed. When the wind direction exceeds the limit value, an alarm signal is sent out, an alarm state is displayed, and alarm real-time data information is recorded.

The wind speed early warning value and the limit value are set according to the type and the model of the ultra-high level self-elevating tower crane, and the determination principle is that the higher the hoisting operation range of the ultra-high level self-elevating tower crane is, the lower the wind speed early warning value and the limit value of the operation stop are; the wind speed early warning value is 3-4 levels; the stopping operation value is 5-7 level, and early warning or stopping operation information is sent to operators at the early warning value and the limiting value of the wind speed.

The wind speed measuring instrument is respectively and simultaneously installed at the top end of the ultra-high level self-elevating tower crane and the open position at the bottom of the ultra-high level self-elevating tower crane, wherein the top of a lifting pulley of the ultra-high level self-elevating tower crane is provided with a first wind speed measuring instrument, and meanwhile, any open position around the bottom of the horizontal self-elevating tower crane is also provided with a second wind speed measuring instrument; collecting wind speed signals of the lifting pulley positions of the horizontal self-elevating tower crane by a first wind speed measuring instrument, and collecting wind speed signals around the bottom of the horizontal self-elevating tower crane by a second wind speed measuring instrument; and then the wind speed signals of the first wind speed measuring instrument and the second wind speed measuring instrument are respectively acquired through the sensors, the two paths of wind speed signals are simultaneously transmitted to the wind speed monitoring information processing system through wired or wireless signals, and the wind speed monitoring information processing system processes the two paths of wind speed signals.

The wind speed monitoring information processing system processes the two-way wind speed signals, namely, the wind speed signal acquired by the first wind speed measuring instrument is set to be a high-layer wind speed signal, the wind speed signal acquired by the second wind speed measuring instrument is set to be a low-layer wind speed signal, the high-layer wind speed signal and the low-layer wind speed signal are subjected to vector superposition to form a comprehensive wind speed signal, and the operation influence of the wind speed on the horizontal jack-up tower crane is judged through the comprehensive wind speed signal, so that whether the conditions of early warning or operation stopping are met or not is determined.

The wind speed monitoring information processing system is provided with an information processing unit, a control output unit, an information storage unit, an information display unit and an information export interface unit, and an interface of a remote transmission unit is reserved; after wind speed signals of the wind speed measuring instrument are acquired through the sensor, the measured wind speed signals are input into the wind speed monitoring information processing system, after being processed through the information processing unit, the wind speed signals are displayed through the information display unit, meanwhile, the processed wind speed information is stored through the information storage unit, and the wind speed signal data obtained through the information export interface unit are used for external storage; when the wind speed monitoring information processing system is compared with a set value, the wind speed signal value is found to reach a wind speed early warning value or a limit value, an early warning signal or a work stopping signal is output through the control output unit, and an early warning or work stopping command of the ultra-high level self-elevating tower crane is issued.

The early warning or stopping operation command issued to the operation of the ultra-high level self-elevating tower crane comprises real-time transmission and display at a PC end and a mobile phone end of the wind speed monitoring information processing system, and outputting a stopping operation command by controlling an output unit when the wind speed monitoring information processing system is at a limit value, outputting a stopping operation command to a control element of an operation control system of the ultra-high level self-elevating tower crane, and stopping operation of the control element.

The above-listed embodiments are only to clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings; it should be understood that the embodiments described are only some embodiments, but not all embodiments, and that the terms such as "upper", "lower", "front", "rear", "middle", etc. used in this specification are also for descriptive purposes only and are not intended to limit the scope of the invention in which the invention may be practiced, but rather the relative relationships thereof may be altered or modified without materially altering the technology to the extent that the invention may be practiced. Meanwhile, the structures, proportions, sizes and the like shown in the drawings are only used for being matched with the disclosure of the specification, so that people skilled in the art can know and read the structures, proportions and sizes, and the like, and are not limited by the practical limit conditions of the invention, so that the structure modification, the proportion relation change or the size adjustment do not have any technical significance, and all fall within the scope covered by the technical disclosure of the invention under the condition that the effect and the achieved aim of the invention are not affected. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention has the advantages that:

Claims

1. An intelligent monitoring method for the operation of a large-scale hoisting operation device comprises the steps of respectively installing an anti-collision early warning device, an overload early warning device and a wind speed early warning device on the large-scale hoisting operation device, respectively acquiring the position, hoisting weight data and an environment wind speed signal of the large-scale hoisting operation device during operation through the anti-collision early warning device, the overload early warning device and the wind speed early warning device, then sending the acquired position, hoisting weight data and the environment wind speed signal to an operation monitoring system, and intelligently determining the safety of the large-scale hoisting operation device during operation through analysis and comparison to realize the intelligent monitoring of the large-scale hoisting operation device; the method is characterized in that: distance detection sensors are respectively arranged at a plurality of positions of the large hoisting operation equipment, the distance detection sensors at the plurality of positions respectively collect position signals of corresponding parts, the collected position signals are sent to a monitoring system for position identification, the monitoring system performs comparison and analysis according to safety detection distance and early warning distance required by a cross operation range, and an alarm system sends out different alarm signals to perform multiple alarms in different distance ranges so as to prevent collision among a plurality of cranes; the distance detection sensors at a plurality of positions respectively collect position signals of corresponding parts, namely four groups of detection devices are uniformly arranged on a boom lever of a boom of large hoisting operation equipment according to a cross operation range, namely a first group of detection devices, a second group of detection devices, a third group of detection devices and a fourth group of detection devices; the first group of detection devices comprise a first radar sensor and a fifth radar sensor, the second group of detection devices comprise a second radar sensor and a sixth radar sensor, the third group of detection devices comprise a third radar sensor and a seventh radar sensor, the fourth group of detection devices comprise a fourth radar sensor and an eighth radar sensor, the four groups of detection devices formed by a plurality of radar sensors collect real-time positions of all parts when the large hoisting operation equipment works, the data collected by each radar sensor are sent to a monitoring system device, the comparison analysis of the monitoring system device is used for determining whether collision risks exist, and alarming and stopping operation alarming are carried out in real time according to the sizes of the risks; the alarm system sends out different alarm signals to carry out multiple alarms in different distance ranges, namely the distance ranges detected by the distance detection sensors at a plurality of positions are judged to be safety detection distances and early warning distances by the monitoring system, and when the early warning distances are reached, the monitoring system sends out different alarm signals to carry out multiple alarms according to different distance ranges; when the distance between the adjacent cranes is smaller than the determined limit value, the monitoring system stops the rotation operation of the arm support to one side of the adjacent cranes.

2. The intelligent monitoring method for the operation of the large hoisting operation equipment as claimed in claim 1, wherein: the multiple alarms are particularly triple alarms, the multiple alarms respectively give out alarms at 15m, 10m and 3.5m, and when the multiple alarms give out alarms at 3.5m, the crane boom stops and rotates to one side of an adjacent object.

3. The intelligent monitoring method for the operation of the large hoisting operation equipment as claimed in claim 1, wherein: the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively acquiring the position, the lifting weight data and the environmental wind speed signal of the large lifting operation equipment, wherein a weight sensor and an amplitude sensor are arranged on the large lifting operation equipment, the lifting weight data of the crane are acquired in real time, and a host system in signal connection with the weight sensor and the amplitude sensor is arranged, the host system comprises a display screen and an alarm system which are arranged in an operation room, the current operation weight of the crane is displayed in real time, the current operation weight of the crane is compared with the maximum lifting weight, and the alarm system alarms when the lifting load rate is more than or equal to 90%; when the hoisting load ratio exceeds 100% of the specified value of the corresponding amplitude, the host system automatically stops the upward lifting and amplifying operation and only allows the descending and amplifying operation.

4. A method for intelligently monitoring the operation of a large hoisting operation device as claimed in claim 3, characterized in that: the weight sensor comprises a three-pulley type sensor and a plate ring type sensor; the three-pulley type sensor is arranged on the fixed pulley system; the plate ring type sensor is arranged on a bearing support of the winding drum; the crane lifting weight is detected by a three-pulley sensor arranged on the fixed pulley system and/or a plate-ring sensor arranged on the bearing support of the winding drum.

5. The intelligent monitoring method for the operation of the large hoisting operation equipment as claimed in claim 4, wherein: when the weight sensor is a three-pulley sensor, the three-pulley sensor is fixedly arranged on the arm support through the mounting frame and is matched with a pulley system on the crane, and a steel rope for lifting a weight of the crane passes through the three-pulley sensor.

6. The intelligent monitoring method for the operation of the large hoisting operation equipment as claimed in claim 1, wherein: the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively collecting the position, the hoisting weight data and the environmental wind speed signals when the large hoisting operation equipment works, the wind speed measuring instrument is arranged at the top end and/or the bottom of the large hoisting operation equipment, the wind speed signals detected by the wind speed measuring instrument are transmitted to the wind speed monitoring information processing system through wires or wirelessly, the wind speed information of the field operation area is monitored in real time, the wind speed monitoring information processing system sets a wind speed early warning value and a limit value according to the requirements of the crane safety operation regulations, and early warning or operation stopping information is sent to operators at the wind speed early warning value and the limit value respectively, so that the operation in a dangerous environment is stopped timely.

7. The intelligent monitoring method for the operation of the large hoisting operation equipment as claimed in claim 6, wherein: the wind speed measuring instrument is arranged at the top end and/or the bottom of the large hoisting operation equipment, or is arranged at the open position at the bottom of the large hoisting operation equipment; or the wind speed measuring instrument is respectively and simultaneously arranged at the top end of the large hoisting operation equipment and the bottom open position of the large hoisting operation equipment; the wind speed signal of the position where the wind speed measuring instrument is installed is detected in real time through the wind speed measuring instrument, the wind speed signal of the wind speed measuring instrument is collected through the sensor and is transmitted to the wind speed monitoring information processing system, and risk identification is carried out.

8. The intelligent monitoring method for the operation of the large hoisting operation equipment as claimed in claim 7, wherein: the wind speed signal detected by the wind speed measuring instrument is transmitted to a wind speed monitoring information processing system through a wire or wirelessly, the wind speed monitoring information processing system performs identification according to set wind speed early warning or stopping conditions, early warning is performed when the wind speed reaches the early warning conditions, and warning and stopping operation are performed when the wind speed reaches the stopping conditions; the monitoring information processed by the wind speed monitoring information processing system is displayed in a state through a display screen, and meanwhile, a processing result is sent to a mobile phone of an operator of the large hoisting operation equipment, so that the operator of the large hoisting operation equipment can know the current state of the large hoisting operation equipment.