CN111332967B - Tower crane early warning monitoring system and early warning monitoring method thereof - Google Patents
Tower crane early warning monitoring system and early warning monitoring method thereof Download PDFInfo
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- CN111332967B CN111332967B CN202010184905.4A CN202010184905A CN111332967B CN 111332967 B CN111332967 B CN 111332967B CN 202010184905 A CN202010184905 A CN 202010184905A CN 111332967 B CN111332967 B CN 111332967B
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- wind speed
- tower crane
- early warning
- lifting appliance
- natural wind
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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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- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
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- General Physics & Mathematics (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a tower crane early warning monitoring system and an early warning monitoring method thereof, wherein the tower crane early warning monitoring system comprises a wind speed detection sensor and a control analysis device, wherein the wind speed detection sensor is arranged on a lifting appliance of a tower crane to measure the natural wind speed borne by the lifting appliance in real time; the control analysis device comprises a filtering module which filters the interference of the movement of the lifting appliance on the natural wind speed of the lifting appliance so as to accurately monitor the natural wind speed of the lifting appliance of the tower crane. The tower crane early warning monitoring system and the early warning monitoring method thereof provided by the invention are applied to monitoring of sudden gusts, have reasonable structures, are provided with the filtering module, filter the interference of the movement of the lifting appliance on the measurement of the natural wind speed, and effectively ensure the accuracy of early warning monitoring.
Description
Technical Field
The invention belongs to the technical field of tower crane early warning, and relates to a tower crane early warning monitoring system and an early warning monitoring method thereof.
Background
In the building engineering, as the assembly type engineering is gradually matured, the proportion of the assembly type engineering in the building construction is larger and larger. The weather station can perform large-scale strong wind early warning on a certain area according to the satellite cloud picture, but cannot accurately forecast sudden gust in a local area.
The hoisting of the prefabricated PC member is the important factor for construction safety, and the hoisting safety coefficient of the member is lower than that of conventional materials due to the large volume, heavy weight and long installation time of the PC member; meanwhile, due to the factor of the assembled shape, the windward area is large, the instantaneous wind load is high, and safety accidents such as damage of a lifting appliance and breakage of a lifting rope are easy to happen.
The hoist of tower crane is at the normal operating in-process, and its self removal can be to the hoist whether receive the influence of proruption gust and produce the interference, and influence the early warning monitoring of tower crane promptly, has reduced the factor of safety of tower crane operation.
Therefore, a tower crane early warning monitoring system and an early warning monitoring method thereof are needed to be designed to solve the technical problems in the prior art.
Disclosure of Invention
The invention aims to solve at least part of technical problems in the prior art to a certain extent, and provides a tower crane early warning monitoring system and an early warning monitoring method thereof, which are applied to monitoring sudden gusts and have reasonable structure, are provided with a filtering module, filter the interference of the movement of a lifting appliance on the measurement of natural wind speed, and effectively ensure the accuracy of early warning monitoring.
In order to solve the technical problem, the early warning and monitoring system for the tower crane provided by the invention comprises a wind speed detection sensor and a control analysis device, wherein the wind speed detection sensor is arranged on a lifting appliance of the tower crane to measure the natural wind speed borne by the lifting appliance in real time; the control analysis device comprises a filtering module which filters the interference of the movement of the lifting appliance on the natural wind speed of the lifting appliance so as to accurately monitor the natural wind speed of the lifting appliance of the tower crane.
In some embodiments, the control and analysis device presets a safety value a, a warning value B, and a hazard value C; if the natural wind speed borne by the lifting appliance is not greater than the safety value A, indicating that the tower crane normally operates; if the natural wind speed borne by the lifting appliance is between a safety value A and an early warning value B, indicating early warning operation of the tower crane; and if the natural wind speed borne by the lifting appliance is greater than the dangerous value C, the dangerous operation of the tower crane is represented.
In some embodiments, the filtering module combines a program judgment filtering method and a jitter elimination filtering method to filter interference waves of the hanger subjected to natural wind speed measurement.
In some embodiments, the filtering module filters interference waves of the hanger, which are measured by the natural wind speed, by using an arithmetic average filtering method, a limiting average filtering method, a first-order lag filtering method and/or a limiting jitter elimination filtering method.
In some embodiments, the wind speed detection sensor is arranged at the top of the lifting appliance and transmits measurement data to a tower crane operation room and/or a tower crane operation handheld end in a wireless transmission mode.
In some embodiments, the wind speed detecting sensors are constant-temperature wind speed sensors, and the wind speed detecting sensors are distributed on the top surface of the lifting appliance.
In some embodiments, the wind speed detection sensor performs data transmission with a tower crane operation room and a tower crane operation handheld end through a Zigbee communication module.
In some embodiments, the tower crane early warning monitoring system further comprises an audible and visual alarm device which sends different output signals according to the measurement value of the wind speed detection sensor.
In some embodiments, the control and analysis device further comprises a data acquisition module which acquires the measurement signal of the wind speed detection sensor in real time and performs analog-to-digital conversion so that the measured value is compared with a preset value.
Meanwhile, the invention also discloses a tower crane early warning monitoring method, which uses the tower crane early warning monitoring system and comprises the following steps:
s1, a wind speed detection sensor arranged on the lifting appliance measures the wind speed borne by the lifting appliance in real time;
s2, controlling a filtering module of the analysis device to filter the interference of the movement of the lifting appliance on the natural wind speed borne by the lifting appliance so as to obtain the natural wind speed borne by the lifting appliance;
s3, if the natural wind speed borne by the lifting appliance is not greater than a safety value A, indicating that the tower crane normally operates; if the natural wind speed borne by the lifting appliance is between a safety value A and an early warning value B, indicating early warning operation of the tower crane; if the natural wind speed borne by the lifting appliance is greater than the dangerous value C, dangerous operation of the tower crane is represented;
and S4, controlling the analysis device to send different output signals according to the natural wind speed borne by the lifting appliance through the sound and light alarm device.
The invention has the beneficial effects that:
the tower crane early warning monitoring system and the tower crane early warning monitoring method are applied to monitoring of sudden gusts, are reasonable in structure, are provided with the filtering module, filter the interference of lifting appliance movement on natural wind speed measurement, effectively guarantee the accuracy of early warning monitoring, effectively prevent the influence of the sudden gusts on the operation of a tower crane, and improve the safety of the operation of the tower crane.
Drawings
The above advantages of the present invention will become more apparent and more readily appreciated from the detailed description set forth below when taken in conjunction with the drawings, which are intended to be illustrative, not limiting, of the invention and in which:
FIG. 1 is a schematic block diagram of a tower crane early warning and monitoring system according to the present invention;
FIG. 2 is a schematic diagram of a wind speed sensor according to the present invention transmitting data via a Zigbee communication module;
FIG. 3 is a flow chart of the tower crane early warning monitoring method of the invention.
In the drawings, the reference numerals denote the following components:
10. a spreader;
20. a tower crane operation room;
30. and (4) operating the handheld end by the tower crane.
Detailed Description
Fig. 1 to fig. 3 are related schematic diagrams of a tower crane early warning monitoring system and an early warning monitoring method thereof according to the present application, and the present invention is described in detail below with reference to specific embodiments and accompanying drawings.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative and exemplary of the concepts of the present invention and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The invention discloses a module schematic diagram of a tower crane early warning monitoring system, which comprises a wind speed detection sensor and a control analysis device, wherein the wind speed detection sensor is arranged on a lifting appliance 10 of a tower crane to measure the natural wind speed of the lifting appliance in real time; the control analysis device comprises a filtering module which filters the interference of the movement of the lifting appliance on the natural wind speed of the lifting appliance so as to accurately monitor the natural wind speed of the lifting appliance 10 of the tower crane.
As an embodiment of the present invention, the control and analysis device further includes a data acquisition module, which acquires the measurement signal of the wind speed detection sensor in real time and performs analog-to-digital conversion so that the measurement value is compared with a preset value.
In the invention, the filtering module combines a program judgment filtering method and a jitter elimination filtering method to filter interference waves of the hanger subjected to natural wind speed measurement. Specifically, according to an empirical judgment, the maximum deviation value allowed by two sampling is determined (set as P), and it is judged each time a new value is detected: if the difference between the current value and the previous value is not more than P, the current value is valid, and if the difference between the current value and the previous value is more than P, the current value is invalid, the current value is discarded, and the previous value is used to replace the current value. It can be understood that the filtering module can also adopt an arithmetic average filtering method, a limiting average filtering method, a first-order lag filtering method and/or a limiting jitter-eliminating filtering method to filter interference waves of the hanger, which are measured by the natural wind speed.
As another embodiment of the present invention, the control and analysis device presets a safety value a, an early warning value B, and a risk value C; if the natural wind speed borne by the lifting appliance is not greater than the safety value A, indicating that the tower crane normally operates; if the natural wind speed borne by the lifting appliance is between a safety value A and an early warning value B, indicating early warning operation of the tower crane; and if the natural wind speed borne by the lifting appliance is greater than the dangerous value C, the dangerous operation of the tower crane is represented. The tower crane early warning monitoring system further comprises an acousto-optic alarm device which sends different output signals according to the measured value of the wind speed detection sensor.
Fig. 2 is a schematic diagram of the wind speed detection sensor of the present invention wirelessly transmitting data, the wind speed detection sensor is disposed on the top of the lifting tool, and transmits the measurement data to the tower crane operation room 20 and/or the tower crane operation handheld end 30 by wireless transmission. In the embodiment shown in fig. 2, the wind speed detecting sensor realizes wireless data transmission through the Zigbee communication module. Specifically, a transmitting end of a Zigbee communication module is arranged on the wind speed detection sensor, and a receiving end of the Zigbee communication module is arranged on a tower crane operation room and a tower crane operation handheld end, so that wireless transmission of data is realized through Zigbee.
In some embodiments, the wind speed detecting sensors are constant-temperature wind speed sensors, and the wind speed detecting sensors are distributed on the top surface of the lifting appliance. Preferably, the wind speed detection sensor is a constant temperature type hot wire wind speed sensor. The constant-temperature hot-wire wind speed sensor comprises a sensing element which is a thin metal wire heated by current, and is arranged in a channel. When the gas flows through the fine wire, it will carry away some heat, which is related to the velocity of the fluid. The heating current is changed to supplement the heat taken away by the gas, so that the resistance value of the metal wire is kept unchanged; at this time, the larger the flow rate, the larger the current required, and the fluid velocity can be obtained from the current required to be applied, that is, the wind velocity at the position can be obtained.
Meanwhile, the invention also discloses a tower crane early warning monitoring method, which uses the tower crane early warning monitoring system, and the flow chart of the tower crane early warning monitoring system is shown in fig. 3, and comprises the following steps:
s1, a wind speed detection sensor arranged on the lifting appliance measures the wind speed borne by the lifting appliance in real time;
s2, controlling a filtering module of the analysis device to filter the interference of the movement of the lifting appliance on the natural wind speed borne by the lifting appliance so as to obtain the natural wind speed borne by the lifting appliance;
s3, if the natural wind speed borne by the lifting appliance is not greater than a safety value A, indicating that the tower crane normally operates; if the natural wind speed borne by the lifting appliance is between a safety value A and an early warning value B, indicating early warning operation of the tower crane; if the natural wind speed borne by the lifting appliance is greater than the dangerous value C, dangerous operation of the tower crane is represented;
and S4, controlling the analysis device to send different output signals according to the natural wind speed borne by the lifting appliance through the sound and light alarm device.
Compared with the prior art, the tower crane early warning monitoring system has the following characteristics:
(1) the wind control system of the tower crane has different alarm modes, the traditional tower crane wind control system usually adopts a buzzer in a tower crane cab in wired transmission connection, and the wind control system of the tower crane adopts the ZigBee wireless transmission technology, has the characteristic of low power consumption, and can carry out short-distance real-time signal transmission within the range of 100 meters;
(2) the wind speed sensor is arranged on a lifting appliance, and the wind speed sensor is arranged on a tower crane operating room or the top of a tower crane;
(3) the wind speed sensor of the tower crane has different principles, the conventional rotating cup type wind speed sensor is adopted in the conventional wind speed sensor of the tower crane, and the heat-sensitive constant-temperature type wind speed sensor has the advantage of small volume.
Before the tower crane early warning monitoring system is normally used for operation, the tower crane operation room fixing display equipment needs to be installed in the tower crane operation room in advance and connected with a power supply, and ground personnel use the tower crane to operate the handheld end within the range of 100m of the straight-line distance of hoisting operation. Before the wind speed detection sensor is used, the sensitivity of the wind speed detection sensor is firstly tested, the ZigBee communication module is subjected to pairing test, and whether the wind speed detection sensor is firmly installed or not is checked. After the hoisting work is finished, the lifting appliance is timely detached from the tower crane lifting hook and placed in the forward direction, and the lifting appliance is strictly prohibited to be reversely buckled to damage the wind speed detection sensor on the lifting appliance.
Compared with the defects and shortcomings of the prior art, the tower crane early warning monitoring system and the early warning monitoring method thereof provided by the invention are applied to monitoring of sudden gusts, are reasonable in structure, are provided with the filtering module, filter the interference of the movement of the lifting appliance on the measurement of the natural wind speed, and effectively ensure the accuracy of early warning monitoring.
The present invention is not limited to the above embodiments, and any other various products can be obtained by anyone in light of the present invention, but any changes in shape or structure thereof, which have the same or similar technical solutions as the present application, fall within the protection scope of the present invention.
Claims (7)
1. A tower crane early warning monitoring system is characterized by comprising a wind speed detection sensor and a control analysis device, wherein the wind speed detection sensor is arranged on a lifting appliance of a tower crane to measure the natural wind speed borne by the lifting appliance in real time; the control analysis device comprises a filtering module, and the filtering module filters interference of hanger movement on the natural wind speed borne by a hanger so as to accurately monitor the natural wind speed borne by the hanger of the tower crane; the wind speed detection sensor is arranged at the top of the lifting appliance and transmits measurement data to a tower crane operation room and/or a tower crane operation handheld end in a wireless transmission mode; the wind speed detection sensors are constant-temperature wind speed sensors, and the wind speed detection sensors are distributed on the top surface of the lifting appliance; the filtering module combines a program judging filtering method and a jitter eliminating filtering method to filter interference waves of the hanger for measuring the natural wind speed.
2. The tower crane early warning monitoring system according to claim 1, wherein the control and analysis device presets a safety value A, an early warning value B and a danger value C; if the natural wind speed borne by the lifting appliance is not greater than the safety value A, indicating that the tower crane normally operates; if the natural wind speed borne by the lifting appliance is between a safety value A and an early warning value B, indicating early warning operation of the tower crane; and if the natural wind speed borne by the lifting appliance is greater than the dangerous value C, the dangerous operation of the tower crane is represented.
3. The tower crane early warning and monitoring system according to claim 1, wherein the filtering module filters interference waves of the hanger subjected to natural wind speed measurement by adopting an arithmetic average filtering method, a limiting average filtering method, a first-order lag filtering method and/or a limiting jitter elimination filtering method.
4. The tower crane early warning and monitoring system of claim 1, wherein the wind speed detection sensor performs data transmission with a tower crane operation room and a tower crane operation handheld end through a Zigbee communication module.
5. The tower crane early warning and monitoring system according to claim 1, further comprising an acousto-optic alarm device which sends different output signals according to the measurement value of the wind speed detection sensor.
6. The tower crane early warning monitoring system according to claim 1, wherein the control analysis device further comprises a data acquisition module which acquires a measurement signal of the wind speed detection sensor in real time and performs analog-to-digital conversion so as to compare the measurement value with a preset value.
7. A tower crane early warning monitoring method using the tower crane early warning monitoring system of any one of claims 1-6 is characterized by comprising the following steps:
s1, a wind speed detection sensor arranged on the lifting appliance measures the wind speed borne by the lifting appliance in real time;
s2, controlling a filtering module of the analysis device to filter the interference of the movement of the lifting appliance on the natural wind speed borne by the lifting appliance so as to obtain the natural wind speed borne by the lifting appliance;
s3, if the natural wind speed borne by the lifting appliance is not greater than a safety value A, indicating that the tower crane normally operates; if the natural wind speed borne by the lifting appliance is between a safety value A and an early warning value B, indicating early warning operation of the tower crane; if the natural wind speed borne by the lifting appliance is greater than the dangerous value C, dangerous operation of the tower crane is represented;
and S4, controlling the analysis device to send different output signals according to the natural wind speed of the lifting appliance by the acousto-optic alarm device.
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| CN202010184905.4A CN111332967B (en) | 2020-03-17 | 2020-03-17 | Tower crane early warning monitoring system and early warning monitoring method thereof |
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| CN202010184905.4A CN111332967B (en) | 2020-03-17 | 2020-03-17 | Tower crane early warning monitoring system and early warning monitoring method thereof |
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| CN111332967A CN111332967A (en) | 2020-06-26 |
| CN111332967B true CN111332967B (en) | 2022-08-02 |
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| CN115796031B (en) * | 2022-11-28 | 2023-12-19 | 中铁四局集团第三建设有限公司 | Tower crane wind speed prediction method, system and computer readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002068668A (en) * | 2000-08-29 | 2002-03-08 | Sumitomo Heavy Industries Construction Crane Co Ltd | Wind speed display device in crane |
| CN105314552A (en) * | 2014-07-28 | 2016-02-10 | 西安众智惠泽光电科技有限公司 | Method for safety monitoring of tower crane |
| CN104495622B (en) * | 2014-12-11 | 2016-08-24 | 中联重科股份有限公司 | A kind of wind load control system, method, device and crane gear |
| CN205740068U (en) * | 2016-03-04 | 2016-11-30 | 宁夏六盘智能科技有限公司 | A kind of civil engineering crane monitoring system based on ZigBee-network |
| CN205662247U (en) * | 2016-05-27 | 2016-10-26 | 天津市林通起重设备有限公司 | Wind -force detection device of hoist |
| CN106199056B (en) * | 2016-07-07 | 2019-02-22 | 武汉康普常青软件技术股份有限公司 | A kind of distributed wind speed on-line monitoring method in overhead transmission line corridor |
| CN206069220U (en) * | 2016-08-01 | 2017-04-05 | 北京佰能电气技术有限公司 | A kind of overhead traveling crane electronic anti-swinging oscillator system for being applied to steel rolling production-line |
| CN106586842A (en) * | 2016-12-24 | 2017-04-26 | 宁夏软件工程院有限公司 | Electrolytic plating negative plate hoisting monitoring device based on ZigBee network |
| CN208234399U (en) * | 2018-01-17 | 2018-12-14 | 中铁六局集团有限公司 | A kind of folder rail system suitable for gantry crane |
| CN109110647A (en) * | 2018-08-13 | 2019-01-01 | 安徽工程大学 | A kind of intelligent tower crane control system and method |
| CN109335965A (en) * | 2018-10-31 | 2019-02-15 | 中船华南船舶机械有限公司 | A kind of wisdom security monitoring system of hoister and working method |
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