CN112173972B - Method and system for detecting abnormal multiplying power setting of tower crane monitoring system - Google Patents
Method and system for detecting abnormal multiplying power setting of tower crane monitoring system Download PDFInfo
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- CN112173972B CN112173972B CN202010961245.6A CN202010961245A CN112173972B CN 112173972 B CN112173972 B CN 112173972B CN 202010961245 A CN202010961245 A CN 202010961245A CN 112173972 B CN112173972 B CN 112173972B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 76
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000005856 abnormality Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
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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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- 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
- B66C13/18—Control systems or devices
- B66C13/46—Position indicators for suspended loads or for crane elements
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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
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
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Abstract
The invention relates to the technical field of construction machinery, and discloses a method and a system for detecting abnormal multiplying power setting of a tower crane monitoring system, wherein the method comprises the following steps: acquiring a first lifting moment on a tower crane and a second lifting moment on a tower crane monitoring system; and comparing the first gravitational moment with the second lifting moment, determining a difference value of the first gravitational moment and the second lifting moment, and determining a set multiplying power state of the tower crane monitoring system based on the difference value. Through above-mentioned technical scheme, stop because of operating personnel to tower machine operating specification is not clear and the multiplying power that carry hoist and mount personnel maloperation and lead to sets up unusual problem, very big reduction personnel training's the degree of difficulty to can obtain current lifting moment in real time, improve the security and the reliability of tower machine operation.
Description
Technical Field
The invention relates to the technical field of construction machinery, in particular to a method and a system for detecting abnormal multiplying power setting of a tower crane monitoring system.
Background
In the prior art, when a tower crane is hoisted, the tower crane mainly has two types of multiplying power of 2 multiplying power and 4 multiplying power, the multiplying power is selected at present by a worker through a safety monitoring system, and a judging mode for identifying whether the multiplying power is selected correctly or not is not arranged in the system. However, in the hoisting process, due to the fact that the use specification of the tower crane is not clear by workers, misoperation of hanging and hoisting operators and other factors, under the condition of 2 multiplying powers, the workers select 4 multiplying powers by misoperation, the monitoring system is in an alarm state in the hoisting process, and the use risk efficiency of the tower crane is greatly increased.
Therefore, no mature measures or technical means for preventing the same type exist in the whole tower crane industry, the selection of the lifting multiplying power depends on standard training of workers and on-site supervision, and due to the fact that the training of operators of each construction unit is lack of unified management in the actual on-site process, professional qualities of the operators are uneven, the multiplying power is selected in the tower crane process in a fuzzy mode, and the safety in the lifting process cannot be guaranteed.
Disclosure of Invention
The embodiment of the invention aims to provide a method and a system for detecting the abnormal multiplying power setting of a tower crane monitoring system, which are used for solving or at least solving the technical problem.
In order to achieve the above object, an embodiment of the present invention provides a method for detecting an abnormal magnification setting of a tower crane monitoring system, where the method includes:
acquiring a first lifting moment on a tower crane and a second lifting moment on a tower crane monitoring system; and
and comparing the first gravitational moment with the second lifting moment, determining the difference value of the first gravitational moment and the second lifting moment, and determining the set multiplying power state of the tower crane monitoring system based on the difference value.
Preferably, the first moment of gravity is obtained by:
acquiring a current amplitude L of the tower crane, an actual multiplying power value Y of the tower crane and a numerical value F of a weight sensor; and
calculating a first integral gravity moment through a linear potential sensor based on the current amplitude L, the tower crane multiplying power actual value Y and the weight sensor numerical value F; the first moment of onset of gravity is: m1＝G×L；
Wherein, the current hoisting weight G of the tower crane is: g ═ F × Y.
Preferably, the linear potential sensor is installed on an arched plate of the tower crane hoisting moment limiter.
Preferably, the second lifting moment is obtained by:
acquiring a current amplitude L of the tower crane, a tower crane multiplying power set value X, a tower crane multiplying power actual value Y and a weight sensor numerical value F;
based on current amplitude L and tower crane multiplying power set valueX, tower crane multiplying power actual value Y and weight sensor numerical value F, and calculating a second lifting moment through the controller; the second lifting moment is: m2＝X×L×G/Y；
Wherein, the current hoisting weight G of the tower crane is: g ═ F × Y.
Preferably, under the condition that the current hoisting weight G and the current amplitude L of the tower crane are not changed, the obtained first gravitational moment on the tower crane remains unchanged.
Preferably, determining the set magnification state of the tower crane monitoring system based on the difference comprises:
if the difference is larger than the preset difference, the set multiplying power of the tower crane monitoring system is in an abnormal state;
and if the difference is smaller than or equal to the preset difference, the set multiplying power of the tower crane monitoring system is in a normal state.
Preferably, the method further comprises: multiplying power states are set based on a tower crane monitoring system, and the multiplying power states are broadcasted through a voice prompt system.
Correspondingly, the embodiment of the invention also provides a system for detecting the abnormal multiplying power setting of the tower crane monitoring system, which comprises the following steps:
the acquisition module is used for acquiring a first lifting moment on the tower crane and a second lifting moment on a tower crane monitoring system;
and the controller module is used for comparing the first gravitational moment with the second lifting moment, determining the difference value of the first gravitational moment and the second lifting moment, and determining the set multiplying power state of the tower crane monitoring system based on the difference value.
Preferably, the acquisition module comprises:
the amplitude sensor module is used for acquiring the current amplitude L of the tower crane;
the weight sensor module is used for acquiring a weight sensor value F;
the touch display screen module is used for setting a tower crane multiplying power set value X;
the linear potential sensor module is used for calculating a first integral gravity moment based on the current amplitude L, the tower crane multiplying power actual value Y and the weight sensor numerical value F; the first moment of gravity is: m1＝G×L；
Wherein, the current hoisting weight G of the tower crane is: g is F multiplied by T, and Y is the actual value of the multiplying power of the tower crane.
Preferably, the linear potential sensor is installed on an arched plate of the tower crane hoisting moment limiter.
Preferably, the controller module is further configured to calculate a second lifting moment based on the current amplitude L, the tower crane magnification setting value X, the tower crane magnification actual value Y, and the weight sensor numerical value F; the second lifting moment is: m2＝X×L×G/Y；
Wherein, the current hoisting weight G of the tower crane is: g is F multiplied by Y, and Y is the actual value of the multiplying power of the tower crane.
Preferably, under the condition that the current hoisting weight G and the current amplitude L of the tower crane are not changed, the first gravitational moment on the tower crane acquired by the linear potential sensor module remains unchanged.
Preferably, determining the set magnification state of the tower crane monitoring system based on the difference comprises:
if the difference is larger than the preset difference, the set multiplying power of the tower crane monitoring system is in an abnormal state;
and if the difference is smaller than or equal to the preset difference, the set multiplying power of the tower crane monitoring system is in a normal state.
Preferably, the system further comprises: and the voice prompt module is used for setting the multiplying power state based on the tower crane monitoring system and broadcasting the multiplying power state through the voice prompt system.
Through above-mentioned technical scheme, stop because of operating personnel to tower machine operating specification is not clear and the multiplying power that carry hoist and mount personnel maloperation and lead to sets up unusual problem, very big reduction personnel training's the degree of difficulty to can obtain current lifting moment in real time, improve the security and the reliability of tower machine operation.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
Fig. 1 is a schematic flow chart of a method for detecting an abnormal magnification setting of a tower crane monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a tower crane according to an embodiment of the present invention;
fig. 3 is a block diagram of a system for detecting an abnormal magnification setting of a tower crane monitoring system according to an embodiment of the present invention;
fig. 4 is a block diagram of another system for detecting an abnormal magnification setting of a tower crane monitoring system according to an embodiment of the present invention.
Description of the reference numerals
1 current hoisting weight G of tower crane with current amplitude L2
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The selection of the hoisting multiplying power of the tower crane mainly depends on manual training and on-site supervision, the professional quality of operators is uneven due to the lack of unified management of manual operation in the actual working process, and the safety of the hoisting process cannot be guaranteed due to the fact that the selection of the multiplying power of the tower crane in the working process is very fuzzy. Based on the above, the embodiment of the invention provides a method and a system for detecting the magnification setting abnormity of a tower crane monitoring system, so as to accurately detect the magnification abnormity.
Fig. 1 shows a flow diagram of a method for detecting an abnormal magnification setting of a tower crane monitoring system according to an embodiment of the invention. As shown in fig. 1, an embodiment of the present invention provides a method for detecting an abnormal magnification setting of a tower crane monitoring system, where the method includes: step 101, acquiring a first lifting moment on a tower crane and a second lifting moment on a tower crane monitoring system; and 102, comparing the first gravitational moment with the second lifting moment, determining a difference value between the first gravitational moment and the second lifting moment, and determining a set multiplying power state of the tower crane monitoring system based on the difference value.
In some embodiments, before acquiring a first lifting moment on a tower crane and a second lifting moment on a tower crane monitoring system, a current amplitude L of the tower crane, a tower crane magnification setting value X and a weight sensor numerical value F are preferentially acquired, wherein the tower crane magnification setting value X can be set by using a touch display screen in a manual output mode.
Specifically, taking a tower crane as an example, when the current amplitude of the tower crane is L, the magnification setting value of the tower crane is X, and the value of the weight sensor is F, the method comprises the following steps: m2Calculating to obtain a second hoisting moment on the tower crane monitoring system, wherein G is the current hoisting weight of the tower crane, Y is the multiplying power actual value of the tower crane, and the numerical value of the weight sensor is as follows: f is G/Y. As further shown in fig. 2, in the tower crane structure schematic diagram provided in the embodiment of the present invention, 1 is that the current amplitude of the tower crane is L, and 2 is the current hoisting weight G of the tower crane.
Specifically, in general, the multiplying power of the tower crane is divided by 2 multiplying powers and 4 multiplying powers, and if the multiplying power is 2, the second lifting moment on the tower crane monitoring system can be obtained through calculation:
if under the condition of 4 multiplying powers, the second hoisting moment on the tower crane monitoring system can be obtained through calculation as follows:
through comparison, the second hoisting moment on the tower crane monitoring system is G multiplied by L no matter under the condition of 2 multiplying power or 4 multiplying power as long as the tower crane runs normally.
Under the condition that the current hoisting weight G and the current amplitude L of the tower crane are not changed, the first gravitational moment obtained through the linear potential sensor is kept unchanged.
In some embodiments, the linear potential sensor can be mounted on an arched plate of a tower crane lifting moment limiter, so that the first lifting moment of the tower crane can be accurately acquired.
In some embodiments, still taking the tower crane as an example,assuming that the current amplitude of the tower crane is L, the numerical value of the weight sensor is F, the actual value Y of the multiplying power of the tower crane is 2, and the multiplying power setting value X of the tower crane is set to 4 by a worker by using a touch display, calculating to obtain a second lifting moment on the monitoring system of the tower crane as follows:
at this time, the first gravitational moment obtained by the linear potential sensor on the tower crane is M12The difference M between the second lifting moment and the first lifting moment can be calculated12-M22。
Further, assuming that the current amplitude of the tower crane is L, the numerical value of the weight sensor is F, and the actual value Y of the magnification of the tower crane is 4, and when the magnification setting value X of the tower crane is set to 2 by the staff using the touch display, the second lifting moment on the tower crane monitoring system can be obtained by calculation as follows:
at this time, the first gravitational moment obtained by the linear potential sensor on the tower crane is M14The difference M between the second lifting moment and the first lifting moment can be calculated14-M24。
As above, in the case of 2 multiplying powers, the multiplying power is set to 4 multiplying powers by manually setting the touch display, and then the difference M exists between the second lifting moment and the first gravitational moment12-M22And under the condition of 4 multiplying powers, the tower crane sets a touch display manually to set a multiplying power error to be 2 multiplying powers, and then a difference M exists between the second lifting moment and the first gravitational moment14-M24。
Further, if the difference M12-M22Or/and M14-M24If the difference is larger than the preset difference, the magnification set by the tower crane monitoring system is in an abnormal state; if the difference M12-M22Or/and M14-M24And if the difference is smaller than or equal to the preset difference, the set multiplying power of the tower crane monitoring system is in a normal state.
In some embodiments, in the working process of the tower crane, due to the influence of external factors, such as wind load, temperature, even human factors, and the like, certain influence is generated on the acquired data information of the current amplitude L, the tower crane magnification setting value X, the weight sensor value F, and the like of the tower crane, so that certain difference exists between the acquired data information and the real data, and therefore, a certain error exists between the difference value of the second lifting moment and the first lifting moment, and as long as the error between the difference value of the second lifting moment and the first lifting moment is within a certain range, for example, the error is within a 20% range, the magnification setting can be proved to be correct, otherwise, only the set magnification of the tower crane monitoring system can be described to be in an abnormal state.
In some embodiments, after the multiplying power state set by the tower crane monitoring system is determined, the multiplying power state can be broadcasted through the voice prompt system, if the multiplying power set by the tower crane monitoring system is in an abnormal state, the multiplying power set abnormal state is prompted through the voice prompt system, if the multiplying power set by the tower crane monitoring system is in a normal state, the multiplying power set OK is prompted through the voice prompt system, so that the current multiplying power set state can be broadcasted in real time, a worker is timely reminded of changing, and a serious misoperation is avoided.
Fig. 3 shows a structural block diagram of a system for detecting a magnification setting abnormality of a tower crane monitoring system according to an embodiment of the invention. As shown in fig. 3, an embodiment of the present invention provides a system for detecting an abnormal magnification setting of a tower crane monitoring system, where the system includes: the acquisition module 201 is used for acquiring a first lifting moment on the tower crane and a second lifting moment on the tower crane monitoring system; the controller module 202 is configured to compare the first lifting moment with the second lifting moment, determine a difference between the first lifting moment and the second lifting moment, and determine a set magnification state of the tower crane monitoring system based on the difference.
In some embodiments, before acquiring the first gravitational moment on the tower crane and the second lifting moment on the tower crane monitoring system, the acquiring module 201 preferentially acquires the current amplitude L, the tower crane magnification setting value X, and the weight sensor value F of the tower crane, and then calculates to obtain the first gravitational moment on the tower crane and the second lifting moment on the tower crane monitoring system.
Specifically, as shown in fig. 4, an embodiment of the present invention provides another system for detecting an abnormal magnification setting of a tower crane monitoring system, where the obtaining module 201 further includes: the system comprises an amplitude sensor module 301, a weight sensor module 302, a touch display screen module 304 and a linear potential sensor module 302, wherein the amplitude sensor module 301 is used for acquiring the current amplitude L of the tower crane; the weight sensor module 302 is configured to obtain a weight sensor value F; the touch display screen module 304 is used for setting a tower crane multiplying power setting value X; the linear potential sensor module 302 is configured to acquire the first gravitational moment.
Further, after the current amplitude L of the tower crane, the tower crane magnification setting value X and the weight sensor value F are obtained through the above modules, the controller module 202 according to the second lifting moment formula: m2The second lifting moment is calculated, and for the first lifting moment, the first lifting moment can be obtained by the linear potential sensor module 302, wherein the first lifting moment formula is: m1Gxl. Wherein, G is the current hoisting weight of tower machine, Y is tower machine multiplying power actual value, and weight sensor numerical value is: f is G/Y.
In some embodiments, the linear potentiometer may be mounted on an arcuate plate of a tower crane lifting moment limiter. And under the condition that the current hoisting weight G and the current amplitude L of the tower crane are not changed, the first integral gravity moment on the tower crane linear potential sensor acquired by the linear potential sensor module 302 is kept unchanged.
Wherein the linear potential sensor can be replaced by a sensor for directly and continuously measuring the lifting moment, such as a position potentiometer, an S-ring, etc.
Further, after the first gravitational moment and the second lifting moment are obtained, the controller module 202 compares the first gravitational moment and the second lifting moment, determines a difference value between the first gravitational moment and the second lifting moment, and determines a set multiplying power state of the tower crane monitoring system based on the difference value.
The controller module 202 may be an independent module, or may be integrated with a central controller of the tower crane, and may adopt various control systems or controllers, such as a PLC controller.
In some embodiments, the system further comprises a voice prompt module 305 for broadcasting the multiplying power state, if the tower crane monitoring system sets that the multiplying power is in an abnormal state, the voice prompt module 305 prompts that the multiplying power is abnormal, and if the tower crane monitoring system sets that the multiplying power is in a normal state, the voice prompt module 305 prompts that the multiplying power is OK, so that a worker can be timely reminded of changing, and a serious misoperation is avoided.
In the embodiment of the invention, the abnormity of the multiplying power setting of the tower crane monitoring system is judged by comparing the two lifting moments, so that the problem of abnormal multiplying power setting caused by unclear use specification of the tower crane and misoperation of a hanging and hoisting person by an operator can be solved, the difficulty of personnel training is greatly reduced, the current lifting moment can be obtained in real time, and the safety and the reliability of tower crane operation are improved.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A tower crane monitoring system multiplying power setting abnormity detection method is characterized by comprising the following steps:
acquiring a first lifting moment on a tower crane and a second lifting moment on a tower crane monitoring system;
comparing the first gravitational moment with the second lifting moment, determining a difference value of the first gravitational moment and the second lifting moment, and determining a set multiplying power state of the tower crane monitoring system based on the difference value;
wherein the second lifting moment is obtained by:
acquiring the current amplitude L of the tower crane, a tower crane multiplying power set value X, a tower crane multiplying power actual value Y and a weight sensor numerical value F; and
calculating the second lifting moment through a controller based on the current amplitude L, the tower crane multiplying power set value X, the tower crane multiplying power actual value Y and the weight sensor numerical value F; the second hoisting moment is as follows: m2X × L × G/Y; the current hoisting weight G of the tower crane is as follows: g ═ F × Y.
2. The method for detecting the magnification setting abnormality of the tower crane monitoring system according to claim 1, wherein the first gravitational moment is obtained by a linear potential sensor mounted on an arched plate of a tower crane lifting moment limiter.
3. The method for detecting the magnification setting abnormality of the tower crane monitoring system according to claim 2, characterized in that the obtained first gravitational moment on the tower crane remains unchanged under the condition that the current hoisting weight G and the current amplitude L of the tower crane are unchanged.
4. The method for detecting the abnormal multiplying power setting of the tower crane monitoring system according to claim 1, wherein the step of determining the set multiplying power state of the tower crane monitoring system based on the difference comprises the following steps:
if the difference is larger than a preset difference, the set multiplying power of the tower crane monitoring system is in an abnormal state;
and if the difference is smaller than or equal to a preset difference, the set multiplying power of the tower crane monitoring system is in a normal state.
5. The tower crane monitoring system multiplying power setting abnormity detection method according to claim 1, further comprising: and setting a multiplying power state based on the tower crane monitoring system, and broadcasting the multiplying power state through a voice prompt system.
6. The utility model provides a tower machine monitored control system multiplying power sets up unusual detecting system which characterized in that, the system includes:
the acquisition module is used for acquiring a first lifting moment on the tower crane and a second lifting moment on the tower crane monitoring system;
the controller module is used for comparing the first lifting moment with the second lifting moment, determining a difference value of the first lifting moment and the second lifting moment, and determining a set multiplying power state of the tower crane monitoring system based on the difference value;
the amplitude sensor module is used for acquiring the current amplitude L of the tower crane;
the weight sensor module is used for acquiring a weight sensor value F;
the touch display screen module is used for setting a tower crane multiplying power set value X;
the linear potential sensor module is used for acquiring the first gravitational moment;
wherein the second lifting moment is obtained by:
acquiring the current amplitude L of the tower crane, a tower crane multiplying power set value X, a tower crane multiplying power actual value Y and a weight sensor numerical value F; and
calculating the second lifting moment through a controller based on the current amplitude L, the tower crane multiplying power set value X, the tower crane multiplying power actual value Y and the weight sensor numerical value F; the second hoisting moment is as follows: m2X × L × G/Y; the current hoisting weight G of the tower crane is as follows: g ═ F × Y.
7. The tower crane monitoring system multiplying power setting abnormity detection system as claimed in claim 6, wherein the linear potential sensor is installed on an arched plate of a tower crane lifting moment limiter.
8. The system for detecting the magnification setting abnormality of the tower crane monitoring system according to claim 7, characterized in that the first gravitational moment on the tower crane acquired by the linear potential sensor module is kept unchanged under the condition that the current hoisting weight G and the current amplitude L of the tower crane are unchanged.
9. The system for detecting the abnormal multiplying power setting of the tower crane monitoring system as claimed in claim 6, wherein the step of determining the setting multiplying power state of the tower crane monitoring system based on the difference comprises the following steps:
if the difference is larger than a preset difference, the set multiplying power of the tower crane monitoring system is in an abnormal state;
and if the difference is smaller than or equal to a preset difference, the set multiplying power of the tower crane monitoring system is in a normal state.
10. The system for detecting the abnormal multiplying power setting of the tower crane monitoring system according to claim 6, characterized in that the system further comprises: and the voice prompt module is used for setting a multiplying power state based on the tower crane monitoring system and broadcasting the multiplying power state through the voice prompt system.
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