CN108726303B - Goods lift cable monitoring devices based on big data - Google Patents
Goods lift cable monitoring devices based on big data Download PDFInfo
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- CN108726303B CN108726303B CN201810679864.9A CN201810679864A CN108726303B CN 108726303 B CN108726303 B CN 108726303B CN 201810679864 A CN201810679864 A CN 201810679864A CN 108726303 B CN108726303 B CN 108726303B
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 12
- 238000011156 evaluation Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
Abstract
the invention belongs to the field of goods elevator safety, and particularly relates to a goods elevator cable monitoring device based on big data. The monitoring device of goods lift cable judges the safe service life of goods lift according to the resistance value size of resistance strain sensor and in combination with big data goods lift load impact degree to prevent goods lift cable fracture, guarantee goods lift reliable and stable operation.
Description
Technical Field
The invention belongs to the field of goods elevator safety, and particularly relates to a goods elevator cable monitoring device.
Background
The cable is a flexible component which is necessary for bearing equipment such as the freight elevator, and whether the cable is safe or not is very important for the operation of the freight elevator. In the prior art, for example, there are steel wire rope detection methods and systems for a cargo lift in the institute of building mechanization of the Chinese institute of building science, which detect whether each steel wire rope of the cargo lift is uniformly stressed in real time to prevent the steel wire rope of the cargo lift from breaking (refer to patent document CN 102101618B).
Disclosure of Invention
The invention provides a monitoring device for a cable of a goods elevator, which is used for comprehensively evaluating the safety of the cable by combining the stress condition of the cable and a plurality of items of big data so as to prevent the cable of the goods elevator from being broken and ensure the stable and reliable operation of the goods elevator.
the goods elevator cable monitoring device comprises a stress detection part, an impact evaluation part and a control part, wherein the control part comprehensively judges the safe service life of the cable according to the output results of the stress detection part and the impact evaluation part,
wherein the content of the first and second substances,
The stress detection part comprises at least two resistance strain sensors respectively attached to different cables and used for detecting the real-time stress condition of the cables, the ratio of the length L to the cross-sectional area S of a resistance strain gauge in each resistance strain sensor changes along with the change of the stress of the cables, and the resistance strain sensors are based on the calculation formula of the resistance RAcquiring the stress change of the cable by detecting the resistance value change of the resistance strain gauge, wherein rho is the material resistivity of the resistance strain gauge;
The impact evaluation portion judges the degree of load impact applied to the freight elevator based on the yield and the use frequency of the freight elevator, and the impact evaluation portion includes:
A communication module for acquiring the daily production p of the goods of the workshop or factory where the elevator is locatedk；
A statistic module for recording communication failure times of infrared pair tubes arranged on the door of the elevator in one day, namely daily use frequency f of the elevatork；
Data processing module, according to daily output pkAnd daily frequency of use fkcalculating to obtain a daily load index akRecording daily load index a of each day for one yearkand is combined with the standard value a0Comparing, screening and counting a within one yeark＞a0The total number of times of the operation of the motor,
Wherein the daily load indexWhich represents the average weight per load of the lift per day;
when the resistance values of any two resistance strain type sensors are different, the resistance strain gauges on different cables deform to different degrees due to uneven stress of the cables, and at the moment, the control part judges that the safe service life of the cables is a first service life;
within one year ak＞a0When the total times of the cable is greater than the specified value, the probability that the goods elevator is in a full-load state for a long time is increased, namely the probability that the cable is impacted by the load is increased, so that the risk that the cable is instantaneously pulled and broken is increased, and therefore the control part judges that the safe service life of the cable is shortened from the first service life to the second service life;
within one year ak＞a0when the total number of times is not more than a predetermined value, the control unit judges that the safe service life of the cable is still the first service life.
The invention has the beneficial effects that: according to the resistance value size of resistance strain sensor and goods lift load impact degree in combining big data, can accurately judge the safe life of goods lift, the prevention goods lift cable breakage guarantees that goods lift moves reliably and steadily.
drawings
figure 1 shows a schematic view of a freight lift cable monitoring device;
FIG. 2 is a flow chart illustrating the statistics of the total number of load impacts;
fig. 3 shows a flow chart of the operation of the monitoring device.
Detailed Description
The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.
the first embodiment is as follows:
As shown in figure 1 of the drawings, in which,
the goods elevator cable monitoring device comprises a stress detection part 1, an impact evaluation part 2 and a control part 3, wherein the control part 3 comprehensively judges the safe service life of a cable according to the output results of the stress detection part 1 and the impact evaluation part 2 so as to prevent the cable from being broken and ensure the goods elevator to stably and reliably run;
the stress detection part 1 comprises at least two resistance strain sensors 11 respectively attached to different cables and used for detecting the real-time stress condition of the cables, the ratio of the length L to the cross-sectional area S of a resistance strain gauge in each resistance strain sensor 11 changes along with the change of the stress of the cables, and the resistance strain sensors are based on the calculation formula of the resistance RAcquiring the stress change of the cable by detecting the resistance value change of the resistance strain gauge, wherein rho is the material resistivity of the resistance strain gauge;
As shown in figure 2 of the drawings, in which,
the impact evaluation unit 2 determines the degree of load impact applied to the elevator based on the output and the elevator use frequency, and includes:
A communication module 21, which is in communication connection with the production management system of the enterprise to obtain the daily output p of the goods of the workshop or factory where the goods elevator is locatedk；
A statistical module 22 for recording the communication failure times of the infrared pair tubes 23 arranged on the door of the freight elevator in one day, namely the daily use frequency f of the freight elevatork；
a data processing module 24 for processing the daily production pkAnd daily frequency of use fkcalculating to obtain a daily load index akrecording daily load index a of each day for one yearkAnd is combined with the standard value a0comparing, screening and counting a within one yeark＞a0The total number of times m of the first step,
Wherein the daily load indexwhich represents the average weight per load of the lift per day;
As shown in figure 3 of the drawings,
When the resistance values of any two resistance strain sensors are different, the resistance strain gauges on different cables deform to different degrees due to uneven stress of the cables, and at the moment, the control part 3 judges that the safe service life of the cables is a first service life;
Within one year ak＞a0when the total number m of times is greater than the specified value, the probability that the goods elevator is in a full-load state for a long time is increased, namely the probability that the cable is impacted by the load is increased, so that the risk that the cable is instantaneously pulled and broken is increased, and therefore the control part 3 judges that the safe service life of the cable is shortened from the first service life to the second service life;
Within one year ak＞a0when the total number m of times of the cable is not more than the predetermined value, the control section 3 judges that the safe lifetime of the cable is still the first lifetime.
example two:
As shown in figure 1 of the drawings, in which,
The goods elevator cable monitoring device comprises a stress detection part 1, an impact evaluation part 2 and a control part 3, wherein the control part 3 comprehensively judges the safe service life of a cable according to the output results of the stress detection part 1 and the impact evaluation part 2 so as to prevent the cable from being broken and ensure the goods elevator to stably and reliably run;
The stress detection part 1 comprises at least two resistance strain sensors 11 respectively attached to different cables and used for detecting the real-time stress condition and resistance strain condition of the cablesthe ratio of the length L to the cross-sectional area S of the resistance strain gauge in the sensor 11 varies with the change of the force applied to the cable, and the resistance strain sensor is based on the calculation formula of the resistance RAcquiring the stress change of the cable by detecting the resistance value change of the resistance strain gauge, wherein rho is the material resistivity of the resistance strain gauge;
As shown in figure 2 of the drawings, in which,
The impact evaluation unit 2 determines the degree of load impact applied to the elevator based on the output and the elevator use frequency, and includes:
A communication module 21, which is in communication connection with the warehouse logistics information system of the enterprise to obtain the daily output p of the goods of the workshop or factory where the goods elevator is locatedk；
a statistical module 22 for recording the communication failure times of the infrared pair tubes 23 arranged on the door of the freight elevator in one day, namely the daily use frequency f of the freight elevatork；
A data processing module 24 for processing the daily production pkAnd daily frequency of use fkCalculating to obtain a daily load index akrecording daily load index a of each day for one yearkAnd is combined with the standard value a0Comparing, screening and counting a within one yeark＞a0the total number of times m of the first step,
Wherein the daily load indexWhich represents the average weight per load of the lift per day;
As shown in figure 3 of the drawings,
when the resistance values of any two resistance strain sensors are different, the resistance strain gauges on different cables deform to different degrees due to uneven stress of the cables, and at the moment, the control part 3 judges that the safe service life of the cables is a first service life;
Within one year ak＞a0When the total number m of times is greater than the specified value, the goods elevator is in a full load state for a long timethe possibility of the cable being subjected to the load impact increases, and the risk of the cable being worn and broken increases, and therefore, the control section 3 judges that the safe service life of the cable is shortened from the first service life to the second service life;
Within one year ak＞a0when the total number m of times of the cable is not more than the predetermined value, the control section 3 judges that the safe lifetime of the cable is still the first lifetime.
it will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.
Claims (1)
1. A goods lift cable monitoring device based on big data comprises a stress detection part, an impact evaluation part and a control part, wherein the control part comprehensively judges the safe service life of a cable according to output results of the stress detection part and the impact evaluation part so as to prevent the cable from being broken and ensure the goods lift to stably and reliably run;
it is characterized in that the preparation method is characterized in that,
The stress detection part comprises at least two resistance strain sensors respectively attached to different cables and used for detecting the real-time stress condition of the cables, the ratio of the length L to the cross-sectional area S of a resistance strain gauge in each resistance strain sensor changes along with the change of the stress of the cables, and the resistance strain sensors are based on the calculation formula of the resistance RAcquiring the stress change of the cable by detecting the resistance value change of the resistance strain gauge, wherein rho is the material resistivity of the resistance strain gauge;
The impact evaluation portion judges the degree of load impact applied to the freight elevator based on the yield and the use frequency of the freight elevator, and the impact evaluation portion includes:
A communication module for acquiring the daily production p of the goods of the workshop or factory where the elevator is locatedk；
A statistic module for recording communication failure times of infrared pair tubes arranged on the door of the elevator in one day, namely daily use frequency f of the elevatork；
Data processing module, according to daily output pkand daily frequency of use fkCalculating to obtain a daily load index akRecording daily load index a of each day for one yearkand is combined with the standard value a0comparing, screening and counting a within one yeark＞a0the total number of times of the operation of the motor,
Wherein the daily load indexWhich represents the average weight per load of the lift per day;
When the resistance values of any two resistance strain type sensors are different, the resistance strain gauges on different cables deform to different degrees due to uneven stress of the cables, and at the moment, the control part judges that the safe service life of the cables is a first service life;
within one year ak＞a0When the total times of the cable is greater than the specified value, the probability that the goods elevator is in a full-load state for a long time is increased, namely the probability that the cable is impacted by the load is increased, so that the risk that the cable is instantaneously pulled and broken is increased, and therefore the control part judges that the safe service life of the cable is shortened from the first service life to the second service life;
Within one year ak＞a0when the total number of times is not more than a predetermined value, the control unit judges that the safe service life of the cable is still the first service life.
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| CN201810679864.9A CN108726303B (en) | 2018-06-27 | 2018-06-27 | Goods lift cable monitoring devices based on big data |
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| CN201810679864.9A CN108726303B (en) | 2018-06-27 | 2018-06-27 | Goods lift cable monitoring devices based on big data |
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Effective date of registration: 20191118 Address after: Room 1508, 15 / F, building 22-1, Shanglin South Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Applicant after: Hangzhou Hongjing Automation Technology Co.,Ltd. Address before: 230000 4 town of No. 1 Swan Lake, Qianshan Road, Hefei administrative district, Anhui Applicant before: Yang Rongtai |
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Effective date of registration: 20201218 Address after: 241000 No.32 Chunjiang Road, Qingshui street, Jiujiang District, Wuhu City, Anhui Province Patentee after: Yang Jiawei Address before: 311400 room 1508, 15th floor, building 22-1, Shanglin South Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Hongjing Automation Technology Co.,Ltd. |
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Effective date of registration: 20220628 Address after: No.6, Gaoxin 7th Road, high tech Industrial Development Zone, Ankang City, Shaanxi Province Patentee after: Prill Elevator Co.,Ltd. Address before: 241000 No.32 Chunjiang Road, Qingshui street, Jiujiang District, Wuhu City, Anhui Province Patentee before: Yang Jiawei |
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Denomination of invention: A monitoring device for cargo elevator cables based on big data Effective date of registration: 20230330 Granted publication date: 20191210 Pledgee: Industrial Bank Limited by Share Ltd. Xi'an branch Pledgor: Prill Elevator Co.,Ltd. Registration number: Y2023610000227 |
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