CN113247802A

CN113247802A - Intelligent monitoring method for operation of large-scale hoisting operation equipment

Info

Publication number: CN113247802A
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: 2021-08-13

Abstract

The intelligent monitoring method for the operation of the large-scale 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-scale hoisting operation equipment, respectively acquiring the position, the hoisting weight data and an environmental wind speed signal of the large-scale 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, the hoisting weight data and the environmental wind speed signal to an operation monitoring system, and through analysis and comparison, intelligently determining the safety of the large-scale hoisting operation equipment during operation, and realizing the intelligent monitoring of the operation of the large-scale hoisting operation equipment. According to the invention, the collected position, the lifting weight data and the ambient wind speed signal are compared and analyzed, the safety of the large-scale hoisting operation equipment during operation is intelligently determined, and the method has the characteristics of simple operation, practical detection and convenient management, effectively realizes intelligent monitoring of the operation of the large-scale hoisting operation equipment, and improves the safety degree of the operation.

Description

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

Technical Field

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

Background

With the continuous progress of industrial technology, the large-scale construction of infrastructure is more and more, the large-scale aloft work is more and more, and the development of a large number of ultrahigh engineering construction projects promotes the requirement of ultrahigh hoisting work to be increased; the large-scale hoisting service is mainly applied to downstream industries such as ocean engineering equipment, electric power construction, aerospace engineering, infrastructure construction, coal chemical industry, petrochemical industry, metallurgical construction and the like, and the hoisting height of the large-scale hoisting service exceeds 120 meters.

However, with the increase of the height, various hoisting risks are increased; unsafe factors, including space collision, overweight load, and ambient wind speed, may cause the operation of large hoisting equipment to be at risk, and thus need to be prevented. At present, although some monitoring measures are proposed mainly through manual judgment, the risks are single and lack of systematicness, and especially lack of research on intelligent judgment, but the factors influencing the risks are not noticed and easily cause accidents, so that improvement is needed.

Patent documents with the same technology as the present invention are not found through patent search, but papers and patent documents with certain relation to the present invention mainly include the following:

1. the patent number is CN201921206620.5, the name is "large-scale machinery cooperation hoist and mount data early warning device", the applicant is: the utility model discloses a large-scale machinery 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 frame, a torque sensor and a distance measuring sensor arranged on each crane hook, a camera arranged at the front part of each crane operation room, a singlechip, a display module, an early warning value presetting module, a memory, a wireless transmission module, a mobile client and an alarm module, wherein the external environment detection sensor comprises a weather sensing 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 presetting 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 plurality of cranes, a camera and a plurality of sensors, wherein the cameras and the sensors are arranged on each crane and used for respectively acquiring weather, wind speed, temperature, stress value, hoisting distance and image information data and sending the data to a single chip microcomputer, an early warning value presetting module is used for respectively setting the maximum wind speed value born by each crane in the operation process and the stress limit value of each crane hook, the single chip microcomputer is used for sorting the data of each crane and respectively displaying the sorted data of each crane through a display module, meanwhile, the wind speed and the stress value of each crane are respectively compared with the corresponding early warning values preset by the early warning value presetting module, the set early warning values and the comparison results are displayed through the display module, when the acquired data exceed the early warning values, the single chip microcomputer sends warning signals to the alarm module and displays warning messages through the display module, and the single chip microcomputer sends the acquired data information to the alarm module, The early warning value information, the comparison information and the alarm information are stored in the memory and simultaneously are sent to the mobile client through the wireless transmission module. Although the patent relates to monitoring of wind speed, the influence of the wind speed on hoisting is not carefully analyzed, and early warning processing is also provided for specifically monitoring the wind speed.

2. The patent number is CN201911042103.3, the name is "a building construction tower crane anticollision early warning system who considers the wind speed influence", the applicant is: the invention patent of Beijing architecture university discloses a building construction tower crane anti-collision early warning system considering wind speed influence, which comprises an anti-collision early warning central processing unit and a plurality of building construction tower cranes, wherein the anti-collision early warning central processing unit comprises: a first tower crane cross arm height determining unit module and a second tower crane cross arm height determining unit module, which determine a cross arm height H1 of the first tower crane and a cross arm height H2 of the second tower crane; the cross arm height comparison unit module compares H1 with H2, determines the tower crane with the lower cross arm height as a low-height tower crane, and determines the tower crane with the higher cross 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 spatial distance determining unit module is used for determining the spatial distance between the lifting rope and the cross arm; and the alarm indicating unit module indicates 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 the wind speed on the hoisting operation is mainly considered, the influence is still mainly considered from the aspect of a collision prevention structure based on the existing wind speed limit value; the influence of different wind speeds on the hoisting operation is not considered.

3. The patent number is CN201720420684.X, the name is "safety construction early warning system applied to tower crane", the applicant is: the patent discloses a safety construction early warning system applied to a tower crane, which comprises a weight sensor for detecting the lifting weight of a lifting mechanism, an amplitude sensor for detecting the working amplitude of the tower crane, an inclination angle sensor for detecting the inclination angle of a tower body, a wind speed sensor for detecting the wind speed at the top end of the tower body, a height sensor for detecting the lifting height of a tower crane jib and a gyroscope for detecting the rotation angular speed of the tower crane, wherein a cab monitoring early warning terminal comprises a control host, a display screen and an audible and visual alarm; the control host and the display screen are installed in a cab of the tower crane, and the audible and visual alarm is installed on the outer wall of the cab. Each sensor can send detection data to the main control system in real time, and the main control system can analyze the received data, control the audible and visual alarm to send audible and visual alarm when the data exceed the preset value, and simultaneously display alarm information on the display screen to remind the driver of operation in time, so that the driver can process dangerous conditions in time. Although the patent also mentions wind speed, the wind speed is only considered as a control factor, and how to consider the influence of different wind speeds and wind directions is not proposed.

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

Disclosure of Invention

The invention aims to provide a novel intelligent monitoring method for large-scale hoisting operation equipment operation, aiming at the defects that the existing method for processing large-scale hoisting operation equipment by considering the comprehensive influence of the environment in the hoisting operation has limitation, various environmental factors are lacked, and the equipment factors are not considered, and the intelligent monitoring method for large-scale hoisting operation equipment operation can comprehensively consider various environmental factors and various equipment factors of the hoisting operation, so that the stability and the reliability of the large-scale hoisting operation equipment operation are effectively improved.

In order to achieve the purpose, the invention provides an intelligent monitoring method for operation of large-scale hoisting operation equipment, wherein an anti-collision early warning device, an overload early warning device and a wind speed early warning device are respectively arranged on the large-scale 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 acquiring the position, the hoisting weight data and the environment wind speed signal of the large-scale hoisting operation equipment during operation, the acquired position, the hoisting weight data and the environment wind speed signal are sent to an operation monitoring system, and the safety of the large-scale hoisting operation equipment during operation is intelligently determined through analysis and comparison, so that the intelligent monitoring of the operation of the large-scale hoisting operation equipment is realized.

Furthermore, 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 environment wind speed signal of the large hoisting operation equipment during operation, 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 the corresponding parts, the acquired position signals are sent to the monitoring system for position identification, the monitoring system carries out comparison and analysis according to the safety detection distance and the early warning distance required by the cross operation range, different warning signals are sent by the warning system in different distance ranges for multiple warning, and collision among a plurality of cranes is prevented.

Furthermore, the position signals of the corresponding parts are respectively acquired by the distance detection sensors at the multiple positions, namely four groups of detection devices are uniformly arranged on a boom arm rod of the large hoisting operation equipment according to the cross operation range, wherein the four groups of detection devices are respectively a first group of detection device, a second group of detection device, a third group of detection device and a fourth group of detection device; 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 real-time positions of all parts of the large-scale hoisting operation equipment are collected through the four groups of detection devices formed by the plurality of radar sensors, the data collected by each radar sensor are sent to the monitoring system device, whether collision risks exist or not is confirmed through comparison and analysis of the monitoring system device, and alarming and operation stopping alarming are carried out in real time according to the risks.

Further, the alarm system sends out different alarm signals within different distance ranges to perform multiple alarms, which means that the distance ranges detected by the distance detection sensors at multiple positions are judged to be safe 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 within different distance ranges to perform multiple alarms; and 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 crane.

Further, the multiple alarm is specifically a triple alarm, which is configured to issue an alarm at 15m, 10m and 3.5m, respectively, and when an alarm at 3.5m is issued, the boom is stopped and rotated toward the side of the adjacent object.

Furthermore, 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 ambient wind speed signal of the large-scale lifting operation equipment during operation, 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, 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 and is compared with the maximum lifting weight, and when the lifting load rate is more than or equal to 90%, the alarm system gives an alarm; when the hoisting load rate exceeds 100% of the specified value of the corresponding amplitude, the host system automatically stops the upward lifting and amplitude increasing actions, and only allows the descending and amplitude decreasing actions.

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 hoisting weight is detected by a three-pulley type sensor arranged on the fixed pulley system and/or a plate ring type sensor arranged on a bearing support of the winding drum.

Further, when the weight sensor is a three-pulley sensor, the three-pulley sensor is fixedly mounted on the arm support through a mounting frame and matched with a pulley system on the crane, and a steel rope for the crane to lift a heavy object passes through the three-pulley sensor.

Furthermore, 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 environment wind speed signal of the large hoisting operation equipment during operation, a 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 lead or in a wireless mode to monitor the 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 limit value according to the requirements of safety operation rules of the crane, and respectively sends out early warning or stop operation information to operators at the wind speed early warning value and the limit value to stop operation in a dangerous environment in time.

Furthermore, the wind speed measuring instrument arranged at the top end and/or the bottom of the large hoisting operation equipment is the wind speed measuring instrument arranged at the top end of the large hoisting operation equipment, or the wind speed measuring instrument arranged at the open position at the bottom of the large hoisting operation equipment; or the wind speed measuring instruments are respectively and simultaneously installed at the top end of the large hoisting operation equipment and the open position at the bottom of the large hoisting operation equipment; and detecting a wind speed signal of the position where the wind speed measuring instrument is installed in real time through the wind speed measuring instrument, acquiring the wind speed signal of the wind speed measuring instrument through a sensor, and transmitting the wind speed signal to a wind speed monitoring information processing system for risk identification.

Further, 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 monitoring information processing system identifies according to a set wind speed early warning or stopping condition, early warning is carried out when the wind speed reaches the early warning condition, and alarming and stopping operation are carried out when the wind speed reaches the stopping condition; the monitoring information processed by the wind speed monitoring information processing system is displayed in the state through the display screen, and meanwhile, the 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.

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

Further, the processing of the two paths of wind speed signals by the wind speed monitoring information processing system is to set the wind speed signal acquired by the first wind speed measuring instrument as a high-rise wind speed signal, set the wind speed signal acquired by the second wind speed measuring instrument as a low-rise wind speed signal, form a comprehensive wind speed signal by vector superposition of the high-rise wind speed signal and the low-rise wind speed signal, and determine the degree of influence of the wind speed on the operation of the large-scale hoisting operation equipment through the comprehensive wind speed signal, thereby determining whether the condition of early warning or stopping the operation is achieved.

Furthermore, the wind speed signal comprises the magnitude and the direction of the wind speed, when the high-level wind speed signal and the low-level wind speed signal are subjected to vector superposition, three-dimensional space superposition is carried out 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 for monitoring the wind speed.

Furthermore, the wind speed early warning value and the limit value need to be set according to the type and the model of the large hoisting operation equipment, and the wind speed early warning value and the limit value for early warning and stopping operation are determined according to the principle 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 wind speed early warning value is 3-4 levels; the stop operation value is 5-7 grade, and the wind speed early warning value and the limit value send out early warning or stop operation information to the operator.

Furthermore, the step of sending out early warning or stopping operation information to the operator at the wind speed early warning value and the limiting value is to arrange a wind speed monitoring information processing system in the large-scale hoisting operation equipment operation control room, 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 reserves an interface of a remote transmission unit; after the wind speed signal of the wind speed measuring instrument is collected through the sensor, the measured wind speed signal is input into the wind speed monitoring information processing system, the wind speed signal is processed through the information processing unit, the wind speed signal is displayed through the information display unit, the processed wind speed information is stored through the information storage unit, and the wind speed signal data which is obtained through the information export interface unit is used for external storage; after the wind speed monitoring information processing system is compared with the set value, the wind speed signal value is found to reach the wind speed early warning value or the limit value, the early warning signal or the operation stopping signal is output through the control output unit, and an early warning or operation stopping command of the large-scale hoisting operation equipment is issued.

Furthermore, the giving of the operation warning or stopping command of the large-scale hoisting operation equipment comprises real-time transmission and display at a PC end and a mobile phone end of the wind speed monitoring information processing system, outputting of the operation stopping command through the control output unit at a limit value, outputting of the operation stopping command to a control element of an operation control system of the large-scale hoisting operation equipment, and stopping operation of the control element.

The invention has the advantages that:

(1) the invention provides intelligent control of two aspects of early warning value and limit value for large and medium hoisting operation equipment operation from multiple factors such as anti-collision, overload prevention and environmental wind power, and adopts real-time monitoring, thereby effectively monitoring the impact of collision, overload and over-wind speed on high-altitude hoisting operation in the hoisting operation process and achieving the effect of safe operation;

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

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

(4) The invention provides a calculation method of spatial three-dimensional wind speed superposition, which is used for measuring multi-dimensional wind speed and calculating the influence of wind speed on operation by vector superposition to form comprehensive wind speed, thereby effectively considering the influence of crosscut wind, being more beneficial to determining the influence of actual wind on operation and realizing intelligent judgment;

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

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

Drawings

Fig. 1 is a schematic view of the collision avoidance principle of an embodiment of the present invention;

fig. 2 is a schematic view of the collision avoidance device position sensor mounted on the boom;

FIG. 3 is a schematic view of the cross-working range of the lifting work device;

FIG. 4 is a schematic view of an overload prevention structure of a horizontal arm crane tower crane;

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

FIG. 6 is a schematic view of the installation of a wind speed measurement and control system of large-scale hoisting operation equipment;

FIG. 7 is a schematic view of the installation of a wind speed measurement and control system of a large-scale hoisting operation device according to another embodiment of the invention;

fig. 8 is a schematic view of the installation of the wind speed measurement and control system of the large-scale hoisting operation equipment according to another embodiment of the invention.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example one

As can be seen from the attached figure 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 as an intelligent monitoring method for the operation of an ultrahigh horizontal self-elevating tower crane; install anticollision early warning device respectively on horizontal self-elevating tower machine, overload early warning device and wind speed early warning device, through anticollision early warning device, position when overload early warning device and wind speed early warning device gathered horizontal self-elevating tower machine operation respectively, lift by crane weight data and environment wind speed signal, send the position of gathering again, lift by crane weight data and environment wind speed signal to horizontal self-elevating tower machine operation monitored control system, compare through the analysis, security when the intelligence confirms horizontal self-elevating tower machine operation, realize horizontal self-elevating tower machine operation intelligent monitoring.

As shown in fig. 1, the horizontal self-elevating tower crane 1 includes a base 11, a tower 12 and an arm support 13, the tower 12 is vertically disposed at the upper end of the base 11, the arm support 13 is horizontally disposed at the upper end of the tower 12, a driver operating room 3 is disposed between the tower 12 and the arm support 13, and a plurality of radar sensors 14 are disposed on the arm support 13 of the horizontal self-elevating tower crane 1 to detect the distance between adjacent cranes and prevent the cranes from colliding within a cross-working 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 safe 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 the alarm system sends different alarm signals to perform multiple alarms in different distance ranges; when the distance between adjacent cranes is less than a predetermined value, the boom 13 stops and turns to the side away from the adjacent crane.

Meanwhile, a weight sensor and an amplitude sensor are arranged on the horizontal self-elevating tower crane 1, the lifting weight data of the crane is collected 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 operating room, the current operation weight of the crane is displayed in real time and is compared with the maximum lifting weight, and when the lifting load rate is more than or equal to 90%, the alarm system gives an alarm; when the hoisting load rate exceeds the specified value of the corresponding amplitude and is less than 100% of the specified value, the host system automatically stops the upward lifting and amplitude increasing actions and allows the descending and amplitude decreasing actions; in this embodiment, the upward lifting and amplitude increasing actions or the downward and amplitude decreasing actions are controlled by a relay.

In addition, a WFS-1-1 wind speed measuring instrument is installed on an upper cross beam of a cab of the horizontal self-elevating 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 lead, the wind speed monitoring information processing system monitors wind speed information of a field operation area 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 safety operation rules of a crane, early warning or operation stopping information is sent to an operator at the wind speed early warning value and the limit value respectively, and operation in a dangerous environment is stopped in time.

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 boom 132 through a connecting device, so that the connecting stability is high; the radar sensor can send different alarm signals to perform multiple alarms in different distance ranges through the alarm system, has high safety, and can prevent the cranes from colliding with each other to the greatest extent.

The boom support 13 includes a balance arm 131 and a boom 132 respectively located at two sides of the tower 12, and the length of the boom 132 is greater than that of the balance arm 131; the plurality of radar sensors are uniformly arranged on two sides of the arm support 13 through a connecting device, namely the radar sensors are arranged on two sides of an arm rod of a crane arm 132 through a connecting buckle 4, a connecting plate 6 and a connecting column 5; the connecting buckles 4 are connected to the side walls of the two sides of the boom rod of the crane boom 132, the connecting plates 6 are connected to the connecting buckles 4, and the connecting buckles 4 on the side walls of the two sides of the boom rod of the crane boom 132 are connected through the connecting column 5; the radar sensor is arranged on the connection plate 6.

The connecting buckles 4 on the side walls of the two sides of the boom rod of the crane boom 132 are connected through the connecting columns 5, so that the connecting buckles 4 can be connected more stably, and are prevented from loosening and falling; the connecting plates 6 are connected to the connecting buckles 4, and the radar sensors are arranged on the connecting plates 6, so that the connecting plates 6 can be arranged at different positions of the connecting buckles 4 as required, and one or more connecting plates 6 can be arranged on one connecting buckle 4 as required by a person skilled in the art, that is, one or more radar sensors can be arranged on one connecting buckle 4; the connecting buckles 4 on the side walls of the two sides of the boom 132 are connected through the connecting column 5, the connecting column 5 can further enable the connecting buckles 4 on the side walls of the two sides of the boom 132 to be connected more stably, the connecting buckles 4 are prevented from loosening, and the detection accuracy of the radar sensor is further ensured.

Wherein, a plurality of first connecting holes 41 for connecting the connecting posts 5 and second connecting holes for cables to pass through are arranged on the connecting buckle 4; one or more removable attachment panels 6 may be provided on each attachment buckle 4.

As shown in fig. 2, the connecting column 5 passes through the first connecting hole 41 and can connect the connecting buckle 4, so that the connecting buckle 4 is more stably fixed on the crane arm 132; the second connecting hole on the connecting buckle 4 is used for allowing a cable to pass through, so that the cable can be prevented from knotting, and the stability of the test 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 needs, and meanwhile, the radar sensor can be conveniently replaced and maintained.

The connecting buckle 4 is designed to be L-shaped, 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 a connecting plate 6, the second buckle plate 43 is used for being connected with an arm rod of a crane boom 132, the connecting plates 6 are respectively arranged on the connecting buckles 4 which are oppositely positioned on two sides of the arm rod of the crane boom 132, and each connecting plate 6 is respectively provided with a radar sensor; connecting columns 5 are arranged between the connecting buckles 4 oppositely arranged on the side walls of the two sides of the boom rod of the crane boom 132; two connecting buckles 4, two connecting plates 6, two radar sensors and a connecting column 5 which are oppositely arranged on the side walls of the two sides of the boom rod of the crane boom 132 form a group of detection devices together.

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

Wherein, four groups of detection devices are uniformly arranged on the boom rod of the crane boom 132 according to the cross working range, namely a first group of detection device 21, a second group of detection device 22, a third group of detection device 23 and a fourth group of detection device 24; the first group of detecting devices 21 includes first and fifth radar sensors, the second group of detecting devices 22 includes second and sixth radar sensors, the third group of detecting devices 23 includes third and seventh radar sensors, and the fourth group of detecting devices 24 includes fourth and eighth radar sensors 52 and 62. The detection range is wide, and the horizontal self-elevating tower crane 1 can be prevented from colliding with adjacent objects, such as the crawler crane 7. The rear end of the boom rod of the crane boom 132 is also provided with a height encoder 16, the height encoder 16 is arranged on a reel of a winch, and the hoisting height position of the lifting hook is determined by the height encoder.

The crawler crane 7 comprises a crawler crane sub-arm 71 and a hook 72, and the hook 72 is connected to the crawler crane sub-arm 71 through a steel wire rope 73; the swinging direction of the crawler crane sub-arm 71 of the crawler crane 7 is shown by the line N in FIG. 3, the swinging track of the crawler crane sub-arm 71 of the crawler crane 7 is shown by the line S in FIG. 3, and the crossing operation range of the crawler crane 7 and the tower crane 1 is shown by the area M in FIG. 3.

The radar sensor 2 used in the embodiment is a millimeter wave radar sensor, the wavelength of millimeter waves is between centimeter waves and light waves, and the millimeter wave radar sensor has the advantages of microwave guidance and photoelectric guidance, is small in size, easy to integrate, but high in spatial resolution, and is convenient to improve the accuracy of detection. The detection range of the radar sensor to the small-sized obstacles is 0.7-10 m, and the detection range of the radar sensor to the large-sized obstacles is 0.7-30 m; in the embodiment, the detection range of the radar sensor is respectively 50 degrees from the left to the right by taking the vertical central axis of the radar sensor as a reference, namely the detection horizontal coverage angle of the radar sensor is 100 degrees; in the present embodiment, the detection range of the radar sensor is 7 degrees from top to bottom with respect to the boom 132, that is, the detection pitch angle of the radar sensor is 14 degrees. The detection range and detection angle of the radar sensor can be set by those skilled in the art according to actual working conditions.

The safety detection distance and the early warning distance of the radar sensor are set through the 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 crane arm 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 given.

Wherein different alarm signals are emitted by the alarm system within different distance ranges for multiple alarms, specifically triple alarms, which are respectively emitted at 15m, 10m and 3.5m, and when the alarm of 3.5m is emitted, the boom 132 is stopped and swiveled to the side away from the crawler crane sub-arm 71.

Wherein, respectively send out the police dispatch newspaper at 15m, 10m and 3.5m respectively, specifically: when the detection distance of the radar sensor is less than 15m, displaying that the radar sensor on the host computer is in a yellow state; when the detection distance of the radar sensor is less than 10m, displaying that the radar sensor on the host computer is in a red state; and when the detection distance of the radar sensors is less than 3.5m, displaying that all the radar sensors on the host computer are in a red state.

Wherein, send different alarm signals to carry out multiple alarm by alarm system in different distance ranges, wherein different alarm signals specifically mean: when the detection distance of the radar sensor is less than 15m, the alarm system gives an intermittent alarm; when the detection distance of the radar sensor is less than 10m, the alarm system gives out continuous alarm; when the detection distance of the radar sensor is less than 3.5m, the alarm system sends out continuous emergency alarm.

Meanwhile, a crane overload early warning and prevention and control system is arranged on the horizontal self-elevating tower crane 1, is an overload early warning and prevention and control system based on a moment limiter, adopts a modular structure and consists of four parts, namely an instrument host, an overload limiter, a lower computer and a sensor. The system meter 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 gyroscopic sensor 203. The method comprises the steps that a weight sensor 201, an amplitude encoder 202 and a rotary sensor 203 are used for collecting crane hoisting weight data in real time, and a host computer system 204 in signal connection with the weight sensor 201, the amplitude encoder 202 and the rotary sensor 203 is arranged, as shown in the attached figures 4 and 5; the host system 204 comprises a display screen and an alarm system which are arranged in the operating room, displays the current operation weight of the crane in real time, compares the current operation weight with the maximum hoisting weight, and alarms when the hoisting load rate is more than or equal to 90 percent; when the hoisting load rate 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 amplitude increasing actions and allows the descending and amplitude decreasing actions; in this embodiment, the upward lifting and amplitude increasing actions or the downward and amplitude decreasing actions are controlled by a relay.

In this embodiment, the weight sensor 201 is a plate-ring sensor for detecting the hoisting weight of the crawler crane, and is installed at the fixed end of the steel wire rope at the top end of the boom rod of the boom 132; the amplitude encoder 202 is arranged on an output shaft of an amplitude changing mechanism at the rear part of the boom of the cargo boom 132, and the rotary sensor 203 is arranged on a rotary disc of the tower crane; the weight sensor 201 and the rotary sensor 203 adopt plate-ring sensors, so that the crawler crane can be better adapted to realize monitoring and early warning of the hoisting weight, prevention and control and early warning of the hoisting weight are realized, and the safety in the hoisting process is guaranteed.

In this embodiment, in order to ensure that the signal line of the plate-ring sensor is not damaged due to the swinging of the crane or the external force factors such as 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 the length of the fixing rope.

In this embodiment, in order to ensure that the plate-ring sensor signal wire is not broken by bending, the signal wire is led out perpendicularly to the plane where the plate-ring sensor signal wire lead-out hole is located.

In the embodiment, the precision 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 0.5 t; 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 arranged in the control room, the display screen and the alarm system of the host system 204 are also arranged in the control room, and related personnel can visually know the current lifting weight condition through the display screen in real time, timely know the early warning condition, and ensure the safety in the lifting process.

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

In addition, an air speed measuring instrument 301 is installed at the top end of the horizontal self-elevating tower crane 1, as shown in fig. 6, an air speed signal detected by the air speed measuring instrument 301 is transmitted to an air speed monitoring information processing system 303 through a wire 302, the air speed information of the field operation area is monitored in real time, the air speed monitoring information processing system sets an air speed early warning value and a limit value according to the requirements of safe operation regulations of the crane, and early warning or operation stopping information is sent to an operator at the air speed early warning value and the limit value respectively, so that the operation in a dangerous environment is stopped in time. The WFS-1-1 wind speed measuring instrument acquires a wind speed signal of the wind speed measuring instrument through a sensor and transmits the wind speed signal to a wind speed monitoring information processing system for risk identification.

The wind speed monitoring information processing system identifies according to a set wind speed early warning or stopping condition, carries out early warning when the wind speed reaches the early warning condition, and carries out warning and stops working when the wind speed reaches the stopping condition; monitoring information after the processing of wind speed monitoring information processing system shows the wind-force state of locating through the display screen in the driver's cabin, will handle the result simultaneously and send to the horizontal self-elevating tower machine on the operating personnel and ground commander's the cell-phone, let horizontal self-elevating tower machine's operating personnel and ground commander know the current wind-force state of locating of horizontal self-elevating tower machine.

The monitoring information comprises real-time wind speed and wind direction synchronously displayed at the in-situ end, the webpage end and the mobile phone end of the horizontal 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 monitoring the wind speed according to the detected wind speed. And judging the wind power level by the wind direction, and when the wind power level exceeds a limit value, sending an alarm signal, displaying an alarm state and recording alarm real-time data information.

The wind speed early warning value and the limit value are set according to the type and the model of the horizontal self-elevating tower crane, and the determination principle is that the higher the hoisting operation range of the horizontal self-elevating tower crane is, the lower the wind speed early warning value and the limit value for early warning and stopping operation are; the wind speed early warning value is 4 grades; the stop operation value is 6 grades, and early warning or stop operation information is sent to an operator 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 the wind speed signal of the wind speed measuring instrument is collected through the sensor, the measured wind speed signal is input into the wind speed monitoring information processing system, the wind speed signal is processed through the information processing unit, the wind speed signal is displayed through the information display unit, the processed wind speed information is stored through the information storage unit, and the wind speed signal data which is obtained through the information export interface unit is used for external storage; after the wind speed monitoring information processing system is compared with the set value, the wind speed signal value is found to reach the wind speed early warning value or the limit value, the early warning signal or the operation stopping signal is output through the control output unit, and an early warning or operation stopping command of the horizontal self-elevating tower crane is issued.

The command for giving the early warning or stopping the operation of the horizontal 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 a command for stopping the operation is output through the control output unit when the limit value is reached, and a command for stopping the operation is output to a control element of an operation control system of the horizontal self-elevating tower crane, so that the operation of the control element is stopped.

Meanwhile, the top end of the crane boom, the hoisting mechanism, the rotary tail part and the operating room are respectively provided with a monitoring video camera 15, and the monitoring video cameras are used for respectively monitoring the conditions of the sensors to prevent the sensor failure state.

The specific operation monitoring is as follows:

(1) acquisition of load lifting, moment and amplitude data

The weight sensor and the angle sensor of the original crane equipment can be normally used for reserving, the torque instrument has a data output function, can transmit data and can be normally used for reserving, and otherwise, the torque instrument is replaced.

(2) Acquisition of lifting height and descending depth data

The crane adopts a DXZ type height sensor to realize the real-time acquisition of the height of the lifting hook, signals enter a host of a monitoring system to be processed, and the tower crane also combines an amplitude sensor and the length of an added standard knot to jointly calculate to realize the accurate positioning of the height of the lifting hook. The signal enters a host computer of the monitoring system for displaying and recording.

(3) Wind speed signal acquisition

A WFS-1-1 wind speed sensor is added, 36-dimensional pulse precise counting is adopted, an optimization algorithm is adopted, and accurate measurement is realized. The signal enters a host computer of the monitoring system for displaying and recording.

(4) Orientation signal acquisition

A 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 enters a host computer of the monitoring system for displaying and recording.

(5) Operation instruction collection

A WT-SMS-V2 version signal acquisition unit was used. And optical coupling isolation is adopted for each path of instruction signal, 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 monitoring video camera of the flat-arm tower crane is arranged at the end part of the cargo boom, in the hoisting mechanism, in the luffing mechanism and in the operating room. The crawler crane monitoring video camera is arranged at the top end of the crane boom, the hoisting mechanism, the rotary tail part and the operating room, so that the real-time monitoring of a crane hoisting point area, an operating area and an operating area is realized. Meanwhile, a hard disk video system and a display are arranged in an operation room to realize the storage and display of video data.

(7) Statistics of operating parameters

Working time: the states of all mechanisms are obtained by reading the contacts and then transmitted to the monitoring host, and the host can accurately display the signals to the second, display the signals on a screen and simultaneously store the signals in a hard disk of the monitoring host. And (3) working cycle: and data acquired by the weight sensor is transmitted to the monitoring host, whether the process of 0-1-0 is carried out or not is judged by software, and if yes, a working cycle is recorded. Accumulating the working time: the software of the monitoring host accumulates the total time of the previously counted work cycles, and displays and stores the accumulated time on the monitoring host synchronously.

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 sensor arrangement mode is different, as shown in fig. 7; the intelligent monitoring method comprises the steps that a 750t crawler crane in a Manitow watt is adopted, a cross operation range is included between a sub-arm 271 and a boom 232 of the crawler crane, and four groups of detection devices are arranged according to the cross operation range between the sub-arm 271 and the boom 232 of the crawler crane; the operation position of the crawler crane is monitored in real time through four groups of detection devices; the principle of monitoring is as such an embodiment.

Meanwhile, a weight sensor 201 and an amplitude sensor 202 are arranged on the crawler crane, crane hoisting 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 operating room, the current operation weight of the crane is displayed in real time and is compared with the maximum hoisting weight, and when the hoisting load rate is more than or equal to 90%, the alarm system gives an alarm; when the hoisting load rate exceeds the specified value of the corresponding amplitude and is less than 100% of the specified value, the host system automatically stops the upward lifting and amplitude increasing actions and allows the descending and amplitude decreasing actions; in this embodiment, the upward lifting and amplitude increasing actions or the downward and amplitude decreasing actions are controlled by a relay.

In this embodiment, weight sensor is plate ring sensor and is used for detecting the crawler crane jack-up weight, installs on reel 2's bearing, because the loop wheel machine model is 750t crawler crane in manito tile in this embodiment, the monitoring and the early warning of the adaptation crawler crane that plate ring sensor can be better realize the jack-up weight.

According to the invention, the weight sensor 202 and the amplitude sensor 203 are combined, and the host system 204 is arranged, so that the hoisting weight is limited, the prevention, control and early warning of the hoisting weight are realized, and the safety in the hoisting process is ensured.

In this embodiment, the 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 current weight condition of lifting by crane of understanding of display screen to in time know the early warning condition, ensured the security of the in-process of lifting by crane.

In this embodiment, the mobile terminal further includes an app, and the app is accessed to the host system to realize real-time monitoring and early warning of the mobile terminal

In addition, wind speed measuring instruments are respectively installed at the top end and the bottom of the manitova 750t crawler crane, wind speed signals detected by the wind speed measuring instruments are transmitted to a wind speed monitoring information processing system through leads, wind speed information of a 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 safe operation regulations of the crane, early warning or operation stopping information is respectively sent to operators at the wind speed early warning value and the limit value, and operation in a dangerous environment is stopped in time.

The wind speed measuring instruments arranged at the top end and the bottom of the 750t caterpillar crane of the Manitow watt are arranged at the top end of the 750t caterpillar crane of the Manitow watt, and simultaneously the wind speed measuring instruments are respectively arranged at the open positions at the bottom of the 750t caterpillar crane of the Manitow watt; and detecting a wind speed signal of the position where the wind speed measuring instrument is installed in real time through the wind speed measuring instrument, acquiring the wind speed signal of the wind speed measuring instrument through a sensor, and transmitting the wind speed signal to a wind speed monitoring information processing system for risk identification.

The wind speed signal detected by the wind speed measuring instrument is transmitted to the wind speed monitoring information processing system through a wire, the wind speed monitoring information processing system identifies according to a set wind speed early warning or stopping condition, early warning is carried out when the wind speed reaches the early warning condition, and warning and stopping operation are carried out when the wind speed reaches the stopping condition; monitoring information processed by the wind speed monitoring information processing system is displayed in the state through a display screen, and meanwhile, a processing result is sent to a mobile phone of an operator of the maniton watt 750t crawler crane, so that the operator of the maniton watt 750t crawler crane can know the current state of the maniton watt 750t crawler crane.

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 manitorr wacker 750t crawler crane in real time, judges the wind power level according to the detected wind speed, sends an alarm signal and displays the alarm state when the wind power level exceeds a limit value, and records the alarm real-time data information.

The wind speed measuring instruments are respectively and simultaneously installed at the top end of the 750t crawler crane of the Manitow watt and the open position at the bottom of the 750t crawler crane of the Manitow watt, namely a first wind speed measuring instrument 701 is arranged at the top of a lifting pulley of the 750t crawler crane of the Manitow watt, and a second wind speed measuring instrument 702 (shown in figure 8) is also arranged at any open position around the bottom of the 750t crawler crane of the Manitow watt; collecting a wind speed signal of the lifting pulley position of the 750t caterpillar crane of the manitova watt by a first wind speed measuring instrument, and collecting a wind speed signal around the bottom of the 750t caterpillar crane of the manitova watt by a second wind speed measuring instrument; and then wind speed signals of the first wind speed measuring instrument and the second wind speed measuring instrument are respectively collected through a sensor, two paths of wind speed signals are simultaneously transmitted to a wind speed monitoring information processing system through wired or wireless signals, and the two paths of wind speed signals are processed by the wind speed monitoring information processing system.

The wind speed monitoring information processing system is used for processing the two paths of wind speed signals, namely, the wind speed signals collected by the first wind speed measuring instrument are set as high-rise wind speed signals, the wind speed signals collected by the second wind speed measuring instrument are low-rise wind speed signals, vector superposition is carried out on the high-rise wind speed signals and the low-rise wind speed signals to form comprehensive wind speed signals, the influence degree of the wind speed on the operation of the manitofatt 750t crawler crane is judged through the comprehensive wind speed signals, and therefore whether the condition of early warning or stopping the operation is achieved is determined.

When the high-rise wind speed signal and the low-rise wind speed signal are subjected to vector superposition, three-dimensional space superposition is carried out according to the high-rise wind speed signal and the low-rise wind speed signal to form a comprehensive wind speed signal, and the comprehensive wind speed signal is used as a judgment value for monitoring the wind speed.

The wind speed early warning value and the limit value are set according to the type and the model of the 750t crawler crane of the manitova watt, and the determination principle is that the higher the hoisting operation range of the 750t crawler crane of the manitova watt is, the early warning is performed, and the lower the wind speed early warning value and the limit value for stopping the operation are; the wind speed early warning value is 3-4 levels; the stop operation value is 5-7 grade, and the wind speed early warning value and the limit value send out early warning or stop operation information to the operator.

The wind speed early warning value and the limit value send out early warning or stop operation information to an operator, wherein a wind speed monitoring information processing system is arranged in a manitova 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 the wind speed signal of the wind speed measuring instrument is collected through the sensor, the measured wind speed signal is input into the wind speed monitoring information processing system, the wind speed signal is processed through the information processing unit, the wind speed signal is displayed through the information display unit, the processed wind speed information is stored through the information storage unit, and the wind speed signal data which is obtained through the information export interface unit is used for external storage; after 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 an operation stopping signal is output through the control output unit, and an early warning or operation stopping command of 750t crawler crane operation of manitorr is issued.

The command for giving the early warning or stopping the operation of the manitofatt 750t 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, an operation stopping command is output through a control output unit when the wind speed monitoring information processing system is in a limit value, and an operation stopping command is output to a control element of an operation control system of the manitofatt 750t crawler crane to stop the operation of the control element.

EXAMPLE III

The third embodiment is the same as the first embodiment, but different in wind speed measurement and monitoring, as shown in fig. 8, an ultrahigh-level self-elevating tower crane (with a lifting height of more than 110 m) is adopted, a WFS-1-1 wind speed measuring instrument 601 is installed on an upper cross beam of a cab of the ultrahigh-level self-elevating tower crane, a WFS-1-1 wind speed measuring instrument 602 is also installed on a base of the ultrahigh-level self-elevating tower crane, wind power conditions of the top surface and the bottom of the ultrahigh-level self-elevating tower crane are respectively monitored by the two WFS-1-1 wind speed measuring instruments, 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 a field operation area 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 of a crane, and collecting a wind speed signal of the wind speed measuring instrument according to the WFS-1-1 wind speed measuring instrument, carrying out risk identification, respectively sending early warning or stopping operation information to an operator at a wind speed early warning value and a limit value, and stopping operation in a dangerous environment in time.

The principle of identification is as follows: when the wind speed reaches the early warning condition, giving an alarm and stopping the operation; the monitoring information processed by the wind speed monitoring information processing system displays the wind power state of the wind power system through a display screen in the cab, and simultaneously, the processing result is sent to mobile phones of operators of the ultrahigh-level self-elevating tower crane and ground commanders, so that the operators of the ultrahigh-level self-elevating tower crane and the ground commanders can know the current wind power state of the ultrahigh-level self-elevating tower crane.

The monitoring information comprises real-time wind speed and wind direction synchronously displayed at the on-site end, the webpage end and the mobile phone end of the ultrahigh-level self-elevating tower crane in real time, and the wind speed monitoring information processing system displays the wind speed and the wind direction of the crane in the field operation environment according to the detected wind speed. And judging the wind power level by the wind direction, and when the wind power level exceeds a limit value, sending an alarm signal, displaying an alarm state and recording alarm real-time data information.

The wind speed early warning value and the limit value are set according to the type and the model of the ultrahigh-level self-elevating tower crane, and the higher the hoisting operation range of the ultrahigh-level self-elevating tower crane is, the lower the wind speed early warning value and the limit value for early warning and stopping operation are; the wind speed early warning value is 3-4 levels; the stop operation value is 5-7 grade, and the wind speed early warning value and the limit value send out early warning or stop operation information to the operator.

The wind speed measuring instruments are respectively and simultaneously installed at the top end of the ultrahigh-level self-elevating tower crane and the open position at the bottom of the ultrahigh-level self-elevating tower crane, namely a first wind speed measuring instrument is arranged at the top of a lifting pulley of the ultrahigh-level self-elevating tower crane, and a second wind speed measuring instrument is also arranged at any open position around the bottom of the horizontal self-elevating tower crane; acquiring a wind speed signal of a lifting pulley position of the horizontal self-elevating tower crane by a first wind speed measuring instrument, and acquiring a wind speed signal around the bottom of the horizontal self-elevating tower crane by a second wind speed measuring instrument; and then wind speed signals of the first wind speed measuring instrument and the second wind speed measuring instrument are respectively collected through a sensor, two paths of wind speed signals are simultaneously transmitted to a wind speed monitoring information processing system through wired or wireless signals, and the two paths of wind speed signals are processed by the wind speed monitoring information processing system.

The wind speed monitoring information processing system is used for processing the two paths of wind speed signals, namely, the wind speed signals collected by the first wind speed measuring instrument are set as high-rise wind speed signals, the wind speed signals collected by the second wind speed measuring instrument are low-rise wind speed signals, the high-rise wind speed signals and the low-rise wind speed signals are subjected to vector superposition to form comprehensive wind speed signals, and the influence degree of the wind speed on the operation of the horizontal self-elevating tower crane is judged through the comprehensive wind speed signals, so that whether the condition of early warning or stopping the operation is 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 the wind speed signal of the wind speed measuring instrument is collected through the sensor, the measured wind speed signal is input into the wind speed monitoring information processing system, the wind speed signal is processed through the information processing unit, the wind speed signal is displayed through the information display unit, the processed wind speed information is stored through the information storage unit, and the wind speed signal data which is obtained through the information export interface unit is used for external storage; after the wind speed monitoring information processing system is compared with the set value, the wind speed signal value is found to reach the wind speed early warning value or the limit value, the early warning signal or the operation stopping signal is output through the control output unit, and an early warning or operation stopping command of the ultrahigh-level self-elevating tower crane is issued.

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

The above listed embodiments are only for clear and complete description of the technical solution of the present invention with reference to the accompanying drawings; it should be understood that the embodiments described are only a part of the embodiments of the present invention, and not all embodiments, and the terms such as "upper", "lower", "front", "back", "middle", etc. used in this specification are for clarity of description only, and are not intended to limit the scope of the invention, which can be implemented, and the changes or modifications of the relative relationship thereof are also regarded as the scope of the invention without substantial technical changes. Meanwhile, the structures, the proportions, the sizes, and the like shown in the drawings are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the conditions under which the present invention can be implemented, so that the present invention has no technical essence, and any structural modification, changes in proportion relation, or adjustments of the sizes, can still fall within the range covered by the technical contents disclosed in the present invention without affecting the effects and the achievable purposes of the present invention. 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.

The invention has the advantages that:

Claims

1. An intelligent monitoring method for large-scale hoisting operation equipment operation is characterized in that: the anti-collision early warning device, the overload early warning device and the wind speed early warning device are respectively installed on the large-scale 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 acquiring the position, the hoisting weight data and the environment wind speed signal of the large-scale hoisting operation equipment during operation, then the acquired position, the hoisting weight data and the environment wind speed signal are sent to an operation monitoring system, through analysis and comparison, the safety of the large-scale hoisting operation equipment during operation is intelligently determined, and the intelligent monitoring of the large-scale hoisting operation equipment is realized.

2. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 1, characterized in that: the anti-collision early warning device, the overload early warning device and the wind speed early warning device are used for respectively acquiring the positions of the large-scale hoisting operation equipment during operation, the hoisting weight data and the environmental wind speed signals are respectively provided with the distance detection sensors at a plurality of positions of the large-scale hoisting operation equipment, the distance detection sensors at the plurality of positions are used for respectively acquiring the position signals of the corresponding parts, the acquired position signals are sent to the monitoring system for position identification, the monitoring system carries out comparison and analysis according to the safety detection distance and the early warning distance required by the cross operation range, and different alarm signals are sent by the alarm system in different distance ranges for multiple alarms, so that collision among a plurality of cranes is prevented.

3. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment as claimed in claim 2, characterized in that: the distance detection sensors at multiple positions respectively collect position signals of corresponding parts, namely four groups of detection devices are uniformly arranged on a boom arm rod of the 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 real-time positions of all parts of the large-scale hoisting operation equipment are collected through the four groups of detection devices formed by the plurality of radar sensors, the data collected by each radar sensor are sent to the monitoring system device, whether collision risks exist or not is confirmed through comparison and analysis of the monitoring system device, and alarming and operation stopping alarming are carried out in real time according to the risks.

4. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment as claimed in claim 2, characterized in that: the alarm system sends different alarm signals to perform multiple alarms in different distance ranges, namely the distance ranges detected by the distance detection sensors at multiple positions are judged to be safe detection distances and early warning distances by the monitoring system, and when the early warning distances are reached, the monitoring system sends different alarm signals to perform multiple alarms according to different distance ranges; and 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 crane.

5. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 4, characterized in that: the multiple alarms are specifically triple alarms, wherein the multiple alarms respectively give an alarm at 15m, 10m and 3.5m, and when the multiple alarms give an alarm at 3.5m, the crane boom stops and rotates to one side of an adjacent object for operation.

6. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 1, characterized in that: 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 environment wind speed signal of the large-scale lifting operation equipment during operation, 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, 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 and is compared with the maximum lifting weight, and when the lifting load rate is larger than or equal to 90%, the alarm system gives an alarm; when the hoisting load rate exceeds 100% of the specified value of the corresponding amplitude, the host system automatically stops the upward lifting and amplitude increasing actions, and only allows the descending and amplitude decreasing actions.

7. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 6, 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 hoisting weight is detected by a three-pulley type sensor arranged on the fixed pulley system and/or a plate ring type sensor arranged on a bearing support of the winding drum.

8. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 7, characterized in that: when the weight sensor is a three-pulley type sensor, the three-pulley type sensor is fixedly arranged on the arm support through the mounting frame and matched with a pulley system on the crane, and a steel rope for the crane to lift a heavy object penetrates through the three-pulley type sensor.

9. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 1, characterized in that: 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 environment wind speed signal of the large-scale lifting operation equipment during operation, a wind speed measuring instrument is arranged at the top end and/or the bottom of the large-scale lifting 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 lead or a wireless mode, the wind speed information of a 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 safe operation regulations of a crane, early warning or operation stopping information is respectively sent to operators at the wind speed early warning value and the limit value, and operation in a dangerous environment is stopped in time.

10. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 9, characterized in that: the wind speed measuring instrument is arranged at the top end of the large hoisting operation equipment or at the open position at the bottom of the large hoisting operation equipment; or the wind speed measuring instruments are respectively and simultaneously installed at the top end of the large hoisting operation equipment and the open position at the bottom of the large hoisting operation equipment; and detecting a wind speed signal of the position where the wind speed measuring instrument is installed in real time through the wind speed measuring instrument, acquiring the wind speed signal of the wind speed measuring instrument through a sensor, and transmitting the wind speed signal to a wind speed monitoring information processing system for risk identification.

11. The intelligent monitoring method for the operation of the large-scale hoisting operation equipment according to claim 10, characterized in that: 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 monitoring information processing system identifies according to a set wind speed early warning or stopping condition, early warning is carried out when the wind speed reaches the early warning condition, and alarming and stopping operation are carried out when the wind speed reaches the stopping condition; the monitoring information processed by the wind speed monitoring information processing system is displayed in the state through the display screen, and meanwhile, the 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.