CN113291993B - Wind speed signal-based wind speed early warning control method for large hoisting operation equipment - Google Patents
Wind speed signal-based wind speed early warning control method for large hoisting operation equipment Download PDFInfo
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- CN113291993B CN113291993B CN202110652443.9A CN202110652443A CN113291993B CN 113291993 B CN113291993 B CN 113291993B CN 202110652443 A CN202110652443 A CN 202110652443A CN 113291993 B CN113291993 B CN 113291993B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/88—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
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Abstract
The wind speed early warning control method for the large hoisting operation equipment based on wind speed signals is characterized in that wind speed measuring instruments are arranged at the top and/or bottom of the large hoisting operation equipment, the 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, early warning or operation stopping information is sent to operators at the wind speed early warning values and the limiting values respectively, and operation under dangerous environments is stopped timely. According to the invention, the wind speed signal of the working environment is monitored through the wind speed measuring instrument, and the working early warning or the working stopping indication is carried out according to the requirements of the crane safety operation regulations, so that the safety degree of the working is effectively improved.
Description
Technical Field
The invention relates to a control method of large hoisting operation equipment, in particular to a wind speed early warning control method of large hoisting operation equipment based on wind speed signals, which can rapidly and accurately judge the influence of wind power on the large hoisting operation equipment and early warn or stop operation when wind speed early warning values or limit values appear; 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, the risk of hoisting is increased along with the increase of the height in the ultra-high hoisting operation; the unsafe factors are many, one of which is the influence of wind speed on the high-altitude hoisting operation; the wind speed is very obvious to high altitude hoisting operation, and in the hoisting process of large hoisting operation equipment, the hoisting iron tower crane (including other objects) can be influenced by the wind speed, and the wind force causes the swinging (swaying) of the working arm and the hoisting member of the hoisting operation equipment, thereby directly influencing the operation work safety. Therefore, in the specification of the hoisting operation, it is generally specified that the hoisting operation machine should stop operation immediately when the wind speed is greater than 10.8m/s high wind or gust. However, in the practical application process, many uncertain factors appear; for example, whether the wind power in the ultrahigh air is transverse to the ground or not, whether the direction of the wind power is consistent or not is uncertain, and the influence of the transverse wind on hoisting operation is much greater than the influence of the wind power in the same wind direction; on the other hand, the same limited wind speed is adopted for hoisting operation equipment with different heights, and the hoisting operation equipment with small difference in relative height is still preferable; however, for the existing ultrahigh hoisting operation equipment, the weather condition and the wind speed of the top surface are quite possibly different from those of the ground, and the limitation is carried out according to the uniform wind speed, so that the top surface is obviously unreasonable; moreover, how to identify the wind speed and the wind direction is a problem which is worth solving, so that research and improvement are 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 on the influence of wind speed on the hoisting operation, some analysis and treatment schemes for the influence of wind speed on the hoisting operation are also proposed, through careful analysis, the patents only consider the wind speed as an influence factor, but do not propose how to predict the wind speed for different wind influences and different equipment conditions so as to avoid the influence of the wind speed on the hoisting operation, so the problems described above still appear in the practical application process, and further research and improvement still remain to be carried out.
Disclosure of Invention
Aiming at the defects that the existing large hoisting operation equipment is limited in treatment by considering the influence of wind speed in hoisting operation and is lack of consideration of various wind factors and equipment factors, the invention provides a novel wind speed early warning control method for the large hoisting operation equipment based on wind speed signals.
In order to achieve the purpose, the invention provides a wind speed early warning control method for large hoisting operation equipment based on wind speed signals, wherein wind speed measuring instruments are arranged at the top and/or bottom of the large hoisting operation equipment, the wind speed signals detected by the wind speed measuring instruments are transmitted to a wind speed monitoring information processing system through wires or wirelessly, 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 regulations, and early warning or operation stopping information is sent to operators at the wind speed early warning values and the limit values respectively to stop operation in time in dangerous environments.
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 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 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 monitoring information synchronously displays the real-time wind speed of the crane in the field operation environment in real time at the local end, the webpage end and the mobile phone end of the large hoisting operation equipment, 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.
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 considers the early warning value and the limit value of the wind speed, adopts real-time monitoring, can effectively prevent the influence of the wind speed on the overhead hoisting operation, and achieves the effect of safe operation;
(2) The vector wind power prediction method for spatial three-dimensional wind speed superposition is provided by the invention, multidimensional wind speed measurement is carried out, the influence of wind speed on operation is calculated by adopting vector superposition to form comprehensive wind speed, the influence of transverse wind is effectively considered, the influence of actual wind power on operation is more favorably determined, and intelligent judgment is realized;
(3) The invention provides the method for respectively carrying out the early warning value and the limiting value according to the conditions of different operation equipment, has practicability for the current operation condition with an ultra-large range, and is beneficial to improving the operation efficiency of the operation equipment;
(4) 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 installation diagram of a wind speed measurement and control system of a large hoisting operation device according to one embodiment of the invention;
FIG. 2 is a schematic installation diagram of a wind speed measurement and control system of a large hoisting operation device according to another embodiment of the invention;
FIG. 3 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 illustrated in the following, in conjunction with the accompanying drawings and specific embodiments.
Example 1
As can be seen from the attached figure 1, the invention relates to a wind speed early warning control method of large hoisting operation equipment based on wind speed signals, which adopts a ZSC70240/80t horizontal jack-up type tower crane, a WFS-1-1 wind speed measuring instrument 2 is installed on an upper cross beam of a cab of the horizontal jack-up type tower crane 1, the wind speed signals detected by the wind speed measuring instrument 2 are transmitted to a wind speed monitoring information processing system 4 in the cab through a wire 3, the wind speed monitoring information processing system 4 monitors the wind speed information of an on-site operation area in real time, the wind speed monitoring information processing system 4 sets wind speed early warning values and limit values according to the requirements of crane safety operation regulations, and early warning or operation stopping information is respectively sent to operators at the wind speed early warning values and the limit values, so that the operation in a dangerous environment 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 processing information is 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; indicating the real-time wind speed, wind direction, wind speed condition and dangerous degree of the crane in the field operation environment; the monitoring information processing system judges the wind power level according to the detected wind speed and wind direction, and when the wind power level exceeds a 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.
Example two
The wind speed monitoring principle of the second embodiment is the same as that of the first embodiment, but is different in mode, as shown in fig. 2; the wind speed early warning control method of the large hoisting operation equipment based on wind speed signals comprises the steps of adopting an ultra-high level self-elevating tower crane (the hoisting height is more than 110 meters), installing a WFS-1-1 wind speed measuring instrument 201 on an upper cross beam of a cab of the ultra-high level self-elevating tower crane, simultaneously installing a WFS-1-1 wind speed measuring instrument 202 on a base of the ultra-high level self-elevating tower crane, respectively monitoring wind conditions of the top surface and the bottom of the ultra-high level self-elevating tower crane through the two WFS-1-1 wind speed measuring instruments, simultaneously transmitting wind speed signals detected by the wind speed measuring instruments to a wind speed monitoring information processing system in a cab through wires, carrying out real-time monitoring on wind speed information of an on-site operation area by the wind speed monitoring information processing system, setting a wind speed early warning value and a limit value according to the safety operation rule requirement of the crane, carrying out risk recognition according to the wind speed signals of the WFS-1-1 wind speed measuring instrument, respectively sending early warning or stopping operation information to operators in time under dangerous environments.
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 processing information processed by the wind speed monitoring information processing system shows the wind power state of the wind power station through a display screen in a cab, and simultaneously, 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 processing information is synchronously displayed in real time in a cab, a local end, a webpage end and a mobile phone end of the ultra-high-level self-elevating tower crane; indicating the real-time wind speed, wind direction, wind speed condition and dangerous degree of the crane in the field operation environment; the monitoring information processing system judges the wind power level according to the detected wind speed and wind direction, and when the wind power level exceeds a 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 degree 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.
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 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.
Example III
The operation principle method of the third embodiment is the same as that of the first embodiment, but the installation positions of the wind speed measuring instruments are different according to different operation devices, as shown in fig. 3, the wind speed early warning control method for the large hoisting operation device based on wind speed signals is that the wind speed measuring instruments are installed at the top and the bottom of a Ma Nituo W g 750t crawler crane (Manitowoc 18000), 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 limit values according to the requirements of crane safety operation regulations, 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 a dangerous environment is stopped in time.
The wind speed measuring instrument is arranged at the top end and the bottom of the Ma Nituo W g 750t crawler crane (Manitowoc 18000), the wind speed measuring instrument 301 is arranged at the top end of the Ma Nituo W750 t crawler crane (Manitowoc 18000), and the wind speed measuring instrument 302 is simultaneously arranged at the bottom open position of the Ma Nituo W750 t crawler crane (Manitowoc 18000); 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, the processing result is sent to a mobile phone of an operator of the Ma Nituo W g 750t crawler crane (Manitowoc 18000), so that the operator of the Ma Nituo W g 750t crawler crane (Manitowoc 18000) can know the current state of the Ma Nituo W g 750t crawler crane (Manitowoc 18000).
The monitoring processing information is synchronously displayed on the local side, the webpage side and the mobile phone side of the Ma Nituo W750 t crawler crane (Manitowoc 18000) in real time; indicating the real-time wind speed, wind direction, wind speed condition and dangerous degree of the crane in the field operation environment; the monitoring information processing system judges the wind power level according to the detected wind speed and wind direction, and when the wind power level exceeds a limit value, an alarm signal is sent out, an alarm state is displayed, and alarm real-time data information is recorded.
The wind speed measuring instrument is respectively and simultaneously installed at the top end of the Ma Nituo W g 750t crawler crane (Manitowoc 18000) and the bottom open position of the Ma Nituo W g 750t crawler crane (Manitowoc 18000), wherein the first wind speed measuring instrument is arranged at the top of a lifting pulley of the Ma Nituo W g 750t crawler crane (Manitowoc 18000), and the second wind speed measuring instrument is also arranged at any open position around the bottom of the Ma Nituo W750 t crawler crane (Manitowoc 18000); collecting wind speed signals of the lifting pulley positions of Ma Nituo W g 750t crawler cranes (Manitowoc 18000) by a first wind speed measuring instrument, and collecting wind speed signals around the bottoms of Ma Nituo W g 750t crawler cranes (Manitowoc 18000) 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 degree of wind speed on the Ma Nituo W750 t crawler crane (Manitowoc 18000) 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 required to be set according to the type and the model of the Ma Nituo W g 750t crawler crane (Manitowoc 18000), and the determination principle is that the higher the hoisting operation range of the Ma Nituo W g 750t crawler crane (Manitowoc 18000), the lower the wind speed early warning value and the limit value of the early warning and stopping operation 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 sent to the operator at the early warning value and the limiting value of the wind speed is that a wind speed monitoring information processing system is arranged in a Ma Nituo W g 750t crawler crane (Manitowoc 18000) operation control room, and 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 Ma Nituo W g 750t crawler crane (Manitowoc 18000) work is issued.
The early warning or operation stopping command issued to the Ma Nituo W750 t crawler crane (Manitowoc 18000) comprises real-time transmission and display at the PC end and the mobile phone end of the wind speed monitoring information processing system, and when the wind speed monitoring information processing system is in a limiting value, the operation stopping command is output through the control output unit, and the operation stopping command is output to the control element of the operation control system of the Ma Nituo W750 t crawler crane (Manitowoc 18000) to stop the 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:
(1) The invention considers the early warning value and the limit value of the wind speed, adopts real-time monitoring, can effectively prevent the influence of the wind speed on the overhead hoisting operation, and achieves the effect of safe operation;
(2) The vector wind power prediction method for spatial three-dimensional wind speed superposition is provided by the invention, multidimensional wind speed measurement is carried out, the influence of wind speed on operation is calculated by adopting vector superposition to form comprehensive wind speed, the influence of transverse wind is effectively considered, the influence of actual wind power on operation is more favorably determined, and intelligent judgment is realized;
(3) The invention provides the method for respectively carrying out the early warning value and the limiting value according to the conditions of different operation equipment, has practicability for the current operation condition with an ultra-large range, and is beneficial to improving the operation efficiency of the operation equipment;
(4) 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.
Claims (6)
1. A wind speed early warning control method of large hoisting operation equipment based on wind speed signals is characterized in that: installing wind speed measuring instruments at the top and bottom of the large hoisting operation equipment, transmitting wind speed signals detected by the wind speed measuring instruments to a wind speed monitoring information processing system through wires or wirelessly, monitoring wind speed information of an on-site operation area in real time, setting wind speed early warning values and limit values according to safety operation rule requirements of the large hoisting operation equipment by the wind speed monitoring information processing system, and respectively sending early warning or operation stopping information to operators at the wind speed early warning values and the limit values to stop operation in time in dangerous environments; the wind speed measuring instrument is arranged at the top end and the bottom of the large hoisting operation equipment, and the wind speed measuring instrument is respectively and simultaneously arranged at the open positions of the top end and the bottom of the large hoisting operation equipment; detecting a wind speed signal of a position where the wind speed measuring instrument is installed in real time through the wind speed measuring instrument, collecting 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 measuring instrument is 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, wherein the first wind speed measuring instrument is arranged at the top of a hoisting pulley of the large hoisting operation equipment, and the 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; 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 as a high-level wind speed signal, the wind speed signal acquired by the second wind speed measuring instrument is set as a low-level wind speed signal, the high-level wind speed signal and the low-level 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 large hoisting operation equipment 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; 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.
2. The wind speed early warning control method for the large hoisting operation equipment based on the wind speed signal is characterized by comprising the following steps of: 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.
3. The wind speed early warning control method for the large hoisting operation equipment based on the wind speed signal is characterized by comprising the following steps of: the monitoring information synchronously displays the real-time wind speed of the large hoisting operation equipment in the field operation environment in real time at the local end, the webpage end and the mobile phone end of the large hoisting operation equipment, 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.
4. The wind speed early warning control method for the large hoisting operation equipment based on the wind speed signal is characterized by comprising the following steps of: 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 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.
5. The wind speed early warning control method for the large hoisting operation equipment based on the wind speed signal is characterized by comprising the following steps of: the method comprises the steps that early warning or stopping operation information is sent to operators at an early warning value and a limiting value of wind speed, wherein a wind speed monitoring information processing system is arranged in an operation control room of large hoisting operation equipment, 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 a 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 wind speed signal data exported 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.
6. The wind speed early warning control method for the large hoisting operation equipment based on the wind speed signal according to claim 5, which is characterized in that: 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 wind speed monitoring information processing system is at a limit value, outputting the stopping operation command to a control element of an operation control system of the large hoisting operation equipment, and stopping the operation of the control element.
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| CN115691068A (en) * | 2022-10-21 | 2023-02-03 | 中铁二十局集团市政工程有限公司 | A wind speed early warning system for high-altitude work in expressway construction |
| CN118062738B (en) * | 2024-04-12 | 2025-03-18 | 大地巨人(北京)工程科技有限公司 | A method, device and equipment for optimizing the lifting plan of a dynamic compaction machine hook |
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