CN102826452A - Crane load spectrum data acquisition system, method thereof, and fatigue life assessment system - Google Patents
Crane load spectrum data acquisition system, method thereof, and fatigue life assessment system Download PDFInfo
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Abstract
The invention relates to a crane load spectrum data acquisition system. The crane load spectrum data acquisition system comprises a data acquisition device, a data processing device and a display device, wherein the data acquisition device acquires the condition data of a crane; the data processing device is used for receiving the condition data from the data acquisition device, and selects and stores the condition data respectively; and the display device is used for displaying the condition data according to user requests. Actually measured load spectrum data of the crane can be obtained through applying the above technical scheme in the invention, so the assessment is accurate. The invention also relates to a crane load spectrum data acquisition method and a fatigue life assessment system.
Description
Technical field
The present invention relates to hoisting crane remanent fatigue life evaluation areas, relate in particular to a kind of Crane Load spectrum data capture method, Crane Load spectrum data-acquisition system and based on the hoisting crane remanent fatigue life evaluating system of these hoisting crane actual measurement loading spectrum data.
Background technology
Elevator machinery is an indispensable visual plant in the industries such as petrochemical complex, metallurgy, building, hydraulic and electric engineering, harbour, machinery.These equipment prices are expensive, and manufacturing, installation, burn in period are long, working service cost height, and complex management, period of service is scrapped in the renewal of equipment does not have standard so far.Existing equipment has been on active service for many years mostly in the enterprise, and the prediction of their service life or ultimate limit state is the problem that enterprise is concerned about and presses for solution very much.Therefore; Science is the life-span of evaluation prediction main equipment exactly, and the best update time of equipment etc. is selected in the scientific management of facilities and equipments; For the handling efficiency that improves enterprise, guarantee safety and production, cost-cutting, increase economic efficiency etc. that crucial meaning is all arranged.
Owing to influence the factors complex of metal fatigue, estimate that accurately the work of hoisting crane metal construction remanent fatigue life is relatively more difficult.The method that when addressing this problem, adopts both at home and abroad at present mainly is divided into two types: one type is based on the on-the-spot method that detects; Like ultrasonic defectoscopy, infrared detection method, test optical fiber method and japanning method; These methods are because the monitoring expensive; The sensitivity of sensor is had relatively high expectations, and is difficult to promote on a large scale; The another kind of theory analysis method that is based on, as: Computer Simulation estimation algorithm, fracture mechanics estimation algorithm, fatigue analysis estimation algorithm and reverse predication method.The Computer Simulation estimation algorithm utilizes computer virtual technology, handles the load cycle discretization of continuous action, can not reflect tired process nature; The fracture mechanics estimation algorithm is difficult to be applied to engineering reality owing to empirical very strong; The fatigue analysis estimation algorithm uses theory identical with reverse predication method, and two kinds of methods all exist because the particularity of statistics is not enough, and the structure initial defect can't quantitatively count and make result of calculation the disadvantage of error occur.
So, begin to get into researchist's the visual field based on the method for actual measurement loading spectrum data evaluation hoisting crane remanent fatigue life.But in the existing method, hoisting crane actual measurement loading spectrum data often are difficult to obtain, thereby cause the assessment result inaccuracy even influence carrying out of real work.
Summary of the invention
Goal of the invention of the present invention is to solve in the existing method because of existence is difficult to obtain hoisting crane actual measurement loading spectrum data and causes assessing inaccuracy or be difficult to be applied to technical barrier such as actual job site.
Wherein, first goal of the invention of the present invention is to provide a kind of Crane Load spectrum data-acquisition system that is common to various hoisting cranes, and its technical scheme is:
A kind of Crane Load spectrum data-acquisition system comprises data acquisition unit, data processing equipment, read out instrument, and wherein, data acquisition unit is gathered the floor data of hoisting crane; Data processing equipment is used for receiving floor data from data acquisition unit, and respectively floor data is selected, stored; Read out instrument is used for showing above-mentioned floor data according to user's request.
According to said structure; Crane Load of the present invention spectrum data-acquisition system can access various floor datas such as the lifting altitude data, luffing data, load data, displacement data of hoisting crane; And each floor data is saved in data processing equipment; Lot of data is stored selectively, realize data compression.Also can show desired data to the user, man-machine communication's approach is provided, make things convenient for the user to understand the hoisting crane operating condition intuitively through read out instrument.
Optional, data acquisition unit is sent to data processing equipment via the isolation filter circuit with floor data.
Optional, also possess insulating power supply for the power supply of above-mentioned Crane Load spectrum data-acquisition system.
According to said structure, can improve the reliability and the anti-interference resistance of Crane Load spectrum data-acquisition system.
Optional, data acquisition unit comprises lifting altitude sensor, amplitude sensor, at least a in hoist weight sensor and the displacement pickup; Described floor data be meant above-mentioned lifting altitude sensor to hoisting crane lifting mechanism lifting altitude data, above-mentioned amplitude sensor to the displacement data of traveling gear of load data, the detected hoisting crane of above-mentioned displacement pickup of control feel simulator of amplitude data, the above-mentioned detected hoisting crane of weight sensor that hoists of luffing mechanism of hoisting crane at least a.
According to said structure, Crane Load of the present invention spectrum data-acquisition system can access various floor datas such as the lifting altitude data, luffing data, load data, displacement data of hoisting crane.And can select different sensor for use according to different hoisting crane kinds, thereby obtain required floor data,, improve the compatibility of this system various hoisting cranes for the establishment of loading spectrum data provides more choices.
Optional, said data processing equipment comprises working state detection device, clock output device, switching value flip flop equipment, memory storage; Working state detection device, each data that it is used for arriving according to each sensor are judged crane operating status, and above-mentioned mode of operation is outputed to above-mentioned read out instrument show; Clock output device, its output be used to mark sensor to each data on time mark; The switching value flip flop equipment wherein stores different data thresholds, will compare from the data and the cooresponding data threshold of each sensor, when meeting storage condition, will represent that the storable switching value information flag of these data is to the corresponding sensor data; Memory storage, it buffer memory that possesses the sensing data of the free mark of storage mark meets the sensing data of storage condition and the nonvolatile memory of time mark thereof with storage.
According to said structure, can realize the real-time transmission of data and can realize that the synchronous transmission of various sensing datas receives.Can also realize the selection of data, the purpose of data compression through the mark of switching value information.
Optional; The sensor data stream of working state detection device through receiving; Judge the work running state situation of hoisting crane, the user makes above-mentioned read out instrument show the sensor data of the free mark of mark through above-mentioned buffer memory is sent the instruction that data are transferred.
According to said structure, the user can understand the running state of hoisting crane in real time through read out instrument, has realized the purpose of crane real-time monitoring, also is convenient to the remote monitor and control of hoisting crane.
Second goal of the invention of the present invention also is to provide a kind of Crane Load spectrum data capture method, comprises data acquisition step, data selection step, data storage step; Data acquisition step can be gathered lifting altitude data, amplitude data, at least a in hoist weight data and the displacement data; Data select step to carry out the selection based on switching value information to each sensing data that gets access to; The data storage step is used to store each the sensor data that mark has switching value information; Wherein, Select in the step in data; Judge whether each the sensor data meets predefined storage condition, when meeting above-mentioned predefined storage condition, to the sensor data mark switching value information.
Optional, in the above-mentioned Crane Load spectrum data capture method, comprise that also mode of operation detects step, according to the mode of operation of at least a detection hoisting crane in lifting altitude data, amplitude data, hoist weight data and the displacement data.
Optional, the data storage step in the above-mentioned Crane Load spectrum data capture method also can have the buffer-stored step of the sensor data of the free mark of storage mark, wherein, and the temporal information when above-mentioned time mark is represented to obtain data.
The 3rd goal of the invention of the present invention also is to provide a kind of hoisting crane evaluating system fatigue life that possesses above-mentioned Crane Load spectrum data-acquisition system.
According to the invention described above, can provide a kind of and can accurately record hoisting crane evaluating system fatigue life that Crane Load spectrum data also can be advantageously used in universal crane loading spectrum data-acquisition system, the universal crane loading spectrum data capture method of actual job site and possess this universal crane loading spectrum data-acquisition system.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute to improper qualification of the present invention, in the accompanying drawings:
Fig. 1 is the structured flowchart of the hoisting crane actual measurement loading spectrum data-acquisition system of expression embodiment 1;
Fig. 2 is the circuit diagram of isolation filter circuit;
Fig. 3 is the scheme drawing of insulating power supply;
Fig. 4 is the structured flowchart of the hoisting crane actual measurement loading spectrum data-acquisition system of expression embodiment 2.
The specific embodiment
To combine accompanying drawing and specific embodiment to specify the present invention below, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as to qualification of the present invention.
Hoisting crane residual life evaluation of the present invention system is based on hoisting crane actual measurement loading spectrum data-acquisition system.This hoisting crane actual measurement loading spectrum data-acquisition system has: data acquisition unit, data processing equipment and read out instrument.Wherein, data acquisition unit can comprise lifting altitude sensor, amplitude sensor, in hoist weight sensor and the displacement pickup one or more.Each data sensor is transferred to data processing equipment via the isolation filter circuit with the lifting altitude data, the amplitude data that collect, hoist weight data or displacement data etc. respectively.Comprise working state detection device in the data processing equipment, the data that it arrives according to each sensor are judged crane operating status; Clock output device, its output time information; The switching value flip flop equipment; Wherein store lifting altitude data threshold, amplitude threshold, the weight threshold that hoists or displacement threshold value; To compare from the data and the cooresponding data threshold of each sensor; When sensing data is compared with each threshold value, when meeting storage condition, will represent that the storable switching value information flag of these data is to the corresponding sensor data; And memory storage, it possesses the buffer memory of storing the sensing data that marks the time mark that express time information is arranged and meets the sensing data of storage condition and the nonvolatile memory of time mark thereof with storage.Wherein, Working state detection device receives when representing that certain sensing data meets the switching value information of storage condition; This sensing data is transported to memory storage, and memory storage is transferred this sensing data time corresponding mark simultaneously, both is complementary stores.
Embodiment 1
Be example with the high pedestal jib crane below, explain that hoisting crane actual measurement loading spectrum data capture method of the present invention, hoisting crane actual measurement loading spectrum data-acquisition system reach the hoisting crane remanent fatigue life evaluating system based on these hoisting crane actual measurement loading spectrum data.
The hoisting crane actual measurement loading spectrum data-acquisition system of present embodiment at first is described.As shown in Figure 1, this system comprises data acquisition unit 10, data processing equipment 20 and read out instrument 30.Wherein, data acquisition unit 10 comprises lifting altitude sensor 101, amplitude sensor 102 and the weight sensor 103 that hoists.Each data sensor is transferred to data processing equipment 20 via isolation filter circuit 40 with the lifting altitude data, the amplitude data that collect, the weight data that hoists etc. respectively.Comprise working state detection device 201 in the data processing equipment 20, it receives the data that each sensor arrives, and judges crane operating status and work running state; Clock output device 202, its output time information; Switching value flip flop equipment 203; Wherein store lifting altitude data threshold, amplitude threshold and the weight threshold that hoists; To compare from the data and the cooresponding data threshold of each sensor; When sensing data is compared with each threshold value, when meeting storage condition, will represent that the storable switching value information D 1 of data outputs to working state detection device 201; With memory storage 204, it buffer memory 204a that possesses the sensing data of the free mark of storage mark meets the sensing data of storage condition and the nonvolatile memory 204b of time mark thereof with storage.Temporal information when above-mentioned time mark is represented to obtain data.
The working process of above-mentioned hoisting crane actual measurement loading spectrum data-acquisition system is following.
At first, carry out the data acquisition of hoisting crane.Lifting altitude sensor 101, amplitude sensor 102 and the weight sensor 103 that hoists detect lifting mechanism, luffing mechanism and the load mechanism of hoisting crane respectively, obtain floor datas such as lifting altitude data, the amplitude data under the hoisting crane actual operating mode and the weight data that hoists.
Subsequently, to each sensing data that gets access to, carry out based on after state selection, the storage of switching value information, realize the data compression of each sensing data, to reduce the burden of data storage.
When customer requirement reads each sensing data or is stored in the data in the data processing equipment 20 selectively; Through the human-computer interaction interface input instruction; Thereby can in read out instrument, show various desired datas; Perhaps, data are transferred in the movable storage device through IO interfaces such as USB.
Below, the principle of work and the function thereof of each primary member in the hoisting crane actual measurement loading spectrum data-acquisition system are described.
As shown in Figure 1, each sensing data that data acquisition unit 10 will obtain is transferred to data processing equipment 20 via isolation filter circuit 40.Working state detection device 201 in the data processing equipment 20 receives each sensing data; Judge the residing actual working state of hoisting crane according to each sensing data; Form the for example visual data information of lifting altitude 10m, 30 ° of luffings, load 50t, output to read out instrument and show.And; Working state detection device can also be through the sensing data that receives immediately; Judgement work running state; For example form " lifting mechanism hoist in/static in ", the work running state information that waits of " in the luffing mechanism luffing/static in ", " load increase in/fixing ", output to and show in the read out instrument, thus the real-time monitoring of realization crane operating status.This work running state is meant the residing static or operating state of each kinematic mechanism of hoisting crane.Mode of operation is meant the instant physical condition amounts such as residing lifting altitude, bat angle, load capacity constantly of hoisting crane.This real-time monitoring also can be transferred instruction according to the data that the user assigns apparatus for monitoring working state 20 or buffer memory 204b through human-computer interaction interface and carry out or suspend.When the user sent the instruction that data transfer to buffer memory 204b, read out instrument 30 showed each sensing data of the free mark of mark.
Working state detection device 201 continues to receive and compare each sensing data of front and back by predetermined fixed time period, thereby obtains the work running state information when generation work running state information.For example; When judging the mode of operation of lifting mechanism of hoisting crane, with 5 seconds be one-period, the last data that transports when lifting altitude sensor 101 is 2 meters of lifting altitudes; Transport back data after 5 seconds when being 4 meters, then decidable is " lifting mechanism hoist in ".When the data of back after one-period maintain an equal level with last data, can think not variation of mode of operation, thereby obtain the work running state information of " during lifting mechanism is static ", and show through read out instrument.Wherein, the time cycle is not limited thereto, and can suitably set according to the difference of lifting mechanism, luffing mechanism, control feel simulator.
The data label time mark that receives in 202 pairs of working state detection device 201 of clock output device, each sensing data of time mark at first stores among the buffer memory 204a of memory storage 204 on the mark, thereby realizes the sequential storage of data.Owing to the data volume of each sensor data stream that temporarily is stored in the free mark of mark among the buffer memory 204a is very big,, become the basis of follow-up generation actual measurement loading spectrum data so need therefrom select partial data to store as valid data.
Store lifting altitude data threshold, amplitude threshold and the weight threshold that hoists in the switching value flip flop equipment 203.Switching value flip flop equipment 203 will compare with lifting altitude data threshold, amplitude threshold and the weight threshold that hoists respectively from sensing datas such as lifting altitude data, the amplitude data of each sensor and the weight datas that hoists; When sensing data is compared with each threshold value; When meeting storage condition; To represent that the storable switching value information D of data q, Df, Dz output to working state detection device 201, carry out mark to the data in the working state detection device 201.The data that have switching value information will be stored among the nonvolatile memory 204b at last, and only store each sensing data that has switching value information D q, Df, Dz this moment, and each sensing data has time mark simultaneously.So the data that do not have label switch amount information D q, Df, Dz of storing among the buffer memory 204a will be at the fixed time, for example deletion automatically after 10 minutes, to guarantee storage space.The switching value information D q that switching value flip flop equipment 201 produces, Df, Dz also can be data storage be in buffer memory 204a after and be not limited to the while or before mark on cooresponding data.
Below, be that example describes with the switching value information D f of changes in amplitude.When amplitude sensor 102 detected amplitude data F1 are transferred to working state detection device 201 through cooresponding isolation filter circuit 40; Switching value flip flop equipment 203 reads this amplitude data; Itself and predefined amplitude threshold are compared, when for example being changed to the integral multiple of 1 ° or 1 °, generate switching value information D f; And with this switching value information D f mark to above-mentioned amplitude data F1, represent that this amplitude data F1 can be stored.For other switching value information D q, Dz, also can realize selection, the storage of data, to reach the purpose of data compression through setting suitable threshold.In order to realize data compression, be not limited thereto, also can use rain flow method etc. that detected data are selected compression.
For reliability and the anti-interference resistance that improves system, the isolation filter circuit of present embodiment adopts digital optocoupler as the isolation filter device.Each sensing data also can be transported to second order Butterworth low-pass filter circuit after through digital photoelectric coupled circuit.Specifically as shown in Figure 2: adopt 2 amplifiers to become electric current series connection negative-feedback circuit with 2 digital photocoupler set, digital optocoupler can adopt TLP512-2 to guarantee the characteristic basically identical of two optocouplers.The effect of the aerotron among the figure is to drive para-electric stream for optocoupler input end diode provides, and guarantees under the very little situation of input voltage V1, to drive input diode, helps improving the isolation precision under the small voltage input condition.According to this isolation filter circuit, can realize the high precision of isolating with lower cost.
The hoisting crane of present embodiment actual measurement loading spectrum data-acquisition system also has the insulating power supply of power supplies such as the isolation filter circuit that is used for to system and system, each sensor.As shown in Figure 3, present embodiment selects for use existing AC/DC or DC/DC isolated supplies module to come the design isolated power supply.Present embodiment employing power is that the DC/DC modular power source of 20W produces 2 road power supplys, and+5V supplies the micro controller system terminal circuit, and+12V supplies the sensor side circuit.
Data processing equipment in the present embodiment also can be achieved through data microprocessors such as Chip Microcomputer A tmega128.
The hoisting crane of present embodiment actual measurement loading spectrum data-acquisition system is preferential but be not limited in hoisting crane evaluating system fatigue life that is useful in based on loading spectrum.
Embodiment 2
Below, be that example explains that hoisting crane actual measurement loading spectrum data capture method of the present invention, hoisting crane actual measurement loading spectrum data-acquisition system reach the hoisting crane remanent fatigue life evaluating system based on these hoisting crane actual measurement loading spectrum data with the transfer crane.Adopt identical numbering with the same or analogous member of the member among the embodiment 1, and omit repeat specification for function, structure.
As shown in Figure 4, the hoisting crane actual measurement loading spectrum data-acquisition system of present embodiment comprises data acquisition unit 10, data processing equipment 20 and read out instrument 30.Wherein, data acquisition unit 10 comprises lifting altitude sensor 101, displacement pickup 104 and the weight sensor 103 that hoists.Each data sensor is transferred to data processing equipment 20 via isolation filter circuit 40 with the lifting altitude data, the displacement data that collect, the weight data that hoists etc. respectively.Comprise working state detection device 201 in the data processing equipment 20, it receives the data that each sensor arrives, and judges crane operating status and work running state; Clock output device 202, its output time information; Switching value flip flop equipment 203; Wherein store lifting altitude data threshold, displacement threshold value and the weight threshold that hoists; To compare from the data and the cooresponding data threshold of each sensor; When sensing data is compared with each threshold value, when meeting storage condition, will represent that the storable switching value information D 1 of data outputs to working state detection device 201; With memory storage 204, it buffer memory 204a that possesses the sensing data of the free mark of storage mark meets the sensing data of storage condition and the nonvolatile memory 204b of time mark thereof with storage.Temporal information when above-mentioned time mark is represented to obtain data.
The working process of above-mentioned hoisting crane actual measurement loading spectrum data-acquisition system is following.
At first, carry out the data acquisition of hoisting crane.Lifting altitude sensor 101, displacement pickup 104 and the weight sensor 103 that hoists detect lifting mechanism, traveling gear and the load mechanism of hoisting crane respectively, obtain sensing datas such as lifting altitude data, the displacement data under the hoisting crane actual operating mode and the weight data that hoists.
Subsequently, to each sensing data that gets access to, carry out based on after state selection, the storage of switching value information, realize the data compression of each sensing data, to reduce the burden of data storage.
When customer requirement reads each sensing data or selects to be stored in the data in the data processing equipment 20; Through the human-computer interaction interface input instruction; Thereby can in read out instrument, show various desired datas, perhaps, data transferred in the movable storage device through IO interfaces such as USB.
Each sensing data that data acquisition unit 10 in the transfer crane will obtain is transferred to data processing equipment 20 via isolation filter circuit 40.Working state detection device 201 in the data processing equipment 20 receives each sensing data; Judge the residing actual working state of hoisting crane according to each sensing data; Form the for example visual data information of lifting altitude 15m, travel distance (displacement) 10m, load 100t, output to read out instrument and show.And; Working state detection device can also be through the sensing data that receives immediately; Judgement work running state; For example form " lifting mechanism hoist in/static in ", the work running state information that waits of " in the traveling gear walking/static in ", " load increase in/fixing ", output to and show in the read out instrument, thus the real-time monitoring of realization crane operating status.This work running state is meant the residing static or operating state of each kinematic mechanism of hoisting crane.Mode of operation is meant the instant physical condition amounts such as residing lifting altitude, bat angle, load capacity constantly of hoisting crane.This real-time monitoring also can be transferred instruction according to the data that the user assigns apparatus for monitoring working state 20 through human-computer interaction interface and carry out or suspend.
Store lifting altitude data threshold, displacement threshold value and the weight threshold that hoists in the switching value flip flop equipment 203.Switching value flip flop equipment 203 will compare with lifting altitude data threshold, displacement threshold value and the weight threshold that hoists respectively from sensing datas such as lifting altitude data, the displacement data of each sensor and the weight datas that hoists; When sensing data is compared with each threshold value; When meeting storage condition; To represent that the storable switching value information D of data q, Dx, Dz output to working state detection device 201, carry out mark to the data in the working state detection device 201.The data that have switching value information will be stored among the nonvolatile memory 204b at last.Only store each sensing data that has switching value information D q, Dx, Dz this moment, and each sensing data has time mark simultaneously.So the data that do not have label switch amount information D q, Dx, Dz of storing among the buffer memory 204a will be at the fixed time, for example deletion automatically after 10 minutes, to guarantee storage space.The switching value information D q that switching value flip flop equipment 201 produces, Dx, Dz also can be data storage be in buffer memory 204a after and be not limited to the while or before mark on cooresponding data.
Below, the switching value information D q that changes with lifting altitude is that example describes.When amplitude sensor 102 detected lifting altitude data Q1 are transferred to working state detection device 201 through cooresponding isolation filter circuit 40; Switching value flip flop equipment 203 reads this lifting altitude data; Itself and predefined lifting altitude threshold value are compared, when being changed to the integral multiple of 1m for example or 1m, generate switching value information D q; And with this switching value information D q mark to above-mentioned lifting altitude data Q1, represent that these lifting altitude data Q1 can be stored.For other switching value information D x, Dz, also can realize selection, the storage of data, to reach the purpose of data compression through setting suitable threshold.In order to realize data compression, be not limited thereto, also can use rain flow method etc. that detected data are selected compression.
Crane Load spectrum data-acquisition system of the present invention is applicable to the loading spectrum data of obtaining various hoisting cranes, and can be used for hoisting crane evaluating system fatigue life based on loading spectrum.
As stated, be example with high pedestal jib crane and transfer crane, the structure and the principle of work of Crane Load spectrum data-acquisition system of the present invention has been described, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on the specific embodiment and field of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a Crane Load spectrum data-acquisition system comprises data acquisition unit, data processing equipment, read out instrument, it is characterized in that:
Said data acquisition unit is gathered the floor data of hoisting crane;
Said data processing equipment is used for receiving said floor data from said data acquisition unit, and respectively said floor data is selected, stored;
Said read out instrument is used for showing said floor data according to user's request.
2. Crane Load spectrum data-acquisition system according to claim 1 is characterized in that:
Said data acquisition unit is sent to said data processing equipment via the isolation filter circuit with said floor data.
3. Crane Load spectrum data-acquisition system according to claim 1 is characterized in that:
Also be included as the insulating power supply of said Crane Load spectrum data-acquisition system power supply.
4. according to any described Crane Load spectrum data-acquisition system in the claim 1～3, it is characterized in that:
Said data acquisition unit comprises lifting altitude sensor, amplitude sensor, at least a in hoist weight sensor and the displacement pickup;
Said floor data be meant said lifting altitude sensor to hoisting crane lifting mechanism lifting altitude data, said amplitude sensor to the displacement data of traveling gear of load data, the detected hoisting crane of said displacement pickup of control feel simulator of amplitude data, the said detected hoisting crane of weight sensor that hoists of luffing mechanism of hoisting crane at least a.
5. according to any described Crane Load spectrum data-acquisition system in the claim 1～3, it is characterized in that:
Said data processing equipment comprises working state detection device, clock output device, switching value flip flop equipment, memory storage;
Working state detection device, each data that is used for arriving according to each sensor are judged crane operating status, and said mode of operation is outputed to said read out instrument show;
Clock output device, its output be used to mark sensor to each data on time mark;
The switching value flip flop equipment wherein stores different data thresholds, will compare from the data and the cooresponding data threshold of each sensor, when meeting storage condition, will represent that the storable switching value information flag of these data is to the corresponding sensor data;
Memory storage, it buffer memory that possesses the sensing data of the free mark of storage mark meets the sensing data of storage condition and the nonvolatile memory of time mark thereof with storage.
6. Crane Load spectrum data-acquisition system according to claim 5 is characterized in that:
Said working state detection device is judged the work running state situation of hoisting crane according to the sensor data stream that receives;
The user makes said read out instrument show the said sensing data of the free mark of mark through said buffer memory is sent the instruction that data are transferred.
7. a Crane Load spectrum data capture method is characterized in that, comprising:
Data acquisition step is gathered at least a in lifting altitude data, amplitude data, hoist weight data and the displacement data;
Data are selected step, and each sensing data to getting access to carries out the selection based on switching value information;
The data storage step, the storage mark has each said sensing data of switching value information;
Select to judge whether each said sensing data meets predefined storage condition in the step in said data, when meeting said predefined storage condition, to said sensing data mark switching value information.
8. Crane Load spectrum data capture method according to claim 7 is characterized in that:
Comprise that also mode of operation detects step, according to the mode of operation of at least a detection hoisting crane in lifting altitude data, amplitude data, hoist weight data and the displacement data.
9. according to claim 7 or 8 described Crane Load spectrum data capture methods, it is characterized in that:
Said data storage step also has the buffer-stored step of the said sensing data of the free mark of storage mark, wherein, and the temporal information when said time mark is represented to obtain data.
10. hoisting crane evaluating system fatigue life is characterized in that:
Possesses any described Crane Load spectrum data-acquisition system in the claim 1 ~ 6.
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| CN110320817A (en) * | 2018-03-28 | 2019-10-11 | 北京金风科创风电设备有限公司 | Wind generating set load assessment method, device, equipment and medium |
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| CN106840489A (en) * | 2015-12-03 | 2017-06-13 | 中联重科股份有限公司 | Loading spectrum data collecting system, method, device and concrete mixer |
| CN105438985A (en) * | 2015-12-30 | 2016-03-30 | 广州特种机电设备检测研究院 | Metal structure fatigue detecting system and method for off-shored crane |
| US11208302B2 (en) | 2016-03-23 | 2021-12-28 | Liebherr-Werk Biberach Gmbh | Method for monitoring a working machine |
| CN109153549A (en) * | 2016-03-23 | 2019-01-04 | 利勃海尔工厂比伯拉赫有限公司 | The method of monitoring machine |
| CN110320817A (en) * | 2018-03-28 | 2019-10-11 | 北京金风科创风电设备有限公司 | Wind generating set load assessment method, device, equipment and medium |
| CN110320817B (en) * | 2018-03-28 | 2022-07-22 | 北京金风科创风电设备有限公司 | Wind generating set load evaluation method, device, equipment and medium |
| CN111285305A (en) * | 2018-12-10 | 2020-06-16 | 马尼托意大利有限责任公司 | Improved safety system for self-propelled operating machine |
| CN111285305B (en) * | 2018-12-10 | 2022-08-30 | 马尼托意大利有限责任公司 | Improved safety system for self-propelled operating machine |
| CN110059440A (en) * | 2019-04-29 | 2019-07-26 | 温州市特种设备检测研究院 | A kind of crane analysis of fatigue system and analysis method |
| CN112326284A (en) * | 2020-10-19 | 2021-02-05 | 南京中船绿洲机器有限公司 | Task profile-based reliability test method for electric deck crane |
| CN112989490A (en) * | 2021-03-29 | 2021-06-18 | 重庆长安新能源汽车科技有限公司 | Method for online real-time evaluation of health state of electric drive system of electric vehicle |
| CN113836119A (en) * | 2021-11-25 | 2021-12-24 | 江苏汇智高端工程机械创新中心有限公司 | Method and system for constructing load spectrum database of transfer case of crane |
| CN113836119B (en) * | 2021-11-25 | 2022-02-25 | 江苏汇智高端工程机械创新中心有限公司 | Method and system for constructing load spectrum database of transfer case of crane |
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