CN114216597A - Holding pole real-time stress wireless monitoring system and control method - Google Patents
Holding pole real-time stress wireless monitoring system and control method Download PDFInfo
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- CN114216597A CN114216597A CN202111372215.2A CN202111372215A CN114216597A CN 114216597 A CN114216597 A CN 114216597A CN 202111372215 A CN202111372215 A CN 202111372215A CN 114216597 A CN114216597 A CN 114216597A
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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Abstract
A wireless monitoring system and a control method for real-time stress of a holding pole comprise the following steps: the system comprises a data acquisition terminal, a data receiving and transmitting processing device, an early warning device and a display control terminal; the data acquisition terminal is used for acquiring strain value digital signals of the holding pole and sending the strain value digital signals to the data receiving and transmitting processing device; the data receiving and transmitting processing terminal is used for processing the received strain value digital signals to obtain strain value data, converting the strain value data into stress value data and wirelessly transmitting the stress value data to the early warning device; the early warning device is used for comparing the received stress value data with a set early warning threshold value and sending out early warning information; sending the obtained stress value data and the early warning information to a display control terminal; the display control terminal is used for receiving and displaying the stress value data and the early warning information sent by the early warning device, sending a command for closing the hoisting equipment based on the early warning information, reducing the equipment volume, reducing the wires and monitoring the stress borne by the holding pole in real time more conveniently.
Description
Technical Field
The invention belongs to the field of assembly construction of power transmission line iron towers, and particularly relates to a pole holding real-time stress wireless monitoring system and a control method.
Background
In order to promote the optimization and adjustment of the energy structure and solve the problem of reverse distribution of energy consumption and energy distribution, the construction of a power grid is rapidly developed. The tower assembly is an important construction link of power grid construction, and has high cost of manpower and material resources, long construction period and high danger. The holding pole is one of important tower construction equipment for extra-high voltage and various voltage levels of a power grid, the size of the pole tower is remarkably increased along with the improvement of the voltage level of a power transmission line, and the complexity and the one-time hoisting weight of a tower material are increased more and more. In addition, the width of the power channel is limited, the distance between the parallel lines is small, the risk of capital construction is increased suddenly, and new requirements are provided for the safety, reliability and early warning system of the tower assembling equipment in the capital construction. Through strain monitoring to embracing pole key position (dangerous cross section), can obtain the stress state of embracing the pole when hoist and mount to judge whether to embrace the pole and be in dangerous state. At present, no holding pole real-time stress wireless monitoring system exists, engineering field operation mostly depends on the technical level of workers, the subjective influence is large, and certain potential safety hazards exist. The dynamic strain gauge at the present stage can realize the real-time monitoring of the strain of the holding pole, but has the following defects: 1. the equipment is large in size, needs power supply and is inconvenient to operate on site; 2. the early preparation time is long, a plurality of wires need to be arranged, and the wires are easy to break when being hoisted, so that the monitoring effect is influenced; 3. the stress value can not be directly measured, and the field observation is inconvenient. The stress on the holding pole cannot be monitored conveniently and accurately in real time.
Disclosure of Invention
In order to overcome the defects that the equipment is large in size, too many wires are used and the stress value cannot be directly measured in the prior art, the invention provides a holding pole real-time stress wireless monitoring system which is used for reducing the equipment size and conveniently monitoring the stress borne by the holding pole in real time.
The invention provides a pole holding real-time stress wireless monitoring system, which comprises:
the system comprises a data acquisition terminal, a data receiving and transmitting processing device, an early warning device and a display control terminal;
the data acquisition terminal is fixed on a set monitoring point position of the holding pole and used for acquiring strain value digital signals of the holding pole and sending the strain value digital signals to the data receiving and transmitting processing device;
the data receiving and transmitting processing terminal is fixed at a set position of the holding pole and used for processing the received strain value digital signals to obtain strain value data and converting the strain value data into stress value data to be wirelessly transmitted to the early warning device;
the early warning device is used for comparing the received stress value data with a set early warning threshold value, and if the stress value data is greater than the set early warning threshold value, the early warning device sends out early warning information; sending the obtained stress value data and the early warning information to a display control terminal;
and the display control terminal is used for receiving and displaying the stress value data and the early warning information sent by the early warning device, and sending a command for closing the hoisting equipment based on the early warning information.
Preferably, the data acquisition terminal includes:
the strain gauge is attached to a set monitoring point position of the holding pole, and the data acquisition device is fixed to the set monitoring point position of the holding pole through a hoop;
the strain gauge is used for measuring the strain value of the holding pole in real time, converting the strain value into a strain value digital signal and transmitting the strain value digital signal to the data acquisition device;
the data acquisition device is used for recording the received strain value digital signals and sending the strain value digital signals to the data receiving and transmitting processing device.
Preferably, the data transceiving processing device is further configured to:
and verifying whether the stress value data sent to the early warning device is complete or not based on the data acquired by the data acquisition terminal.
Preferably, the setting of the early warning threshold includes:
the method comprises the steps of determining a first set early warning threshold value based on factory design stress values of a holding pole to be monitored and calculating a second set early warning threshold value based on lifting load under various working conditions and stress calculation formulas.
Preferably, the early warning device includes: an edge calculation unit;
the edge calculation unit is used for calculating a second set early warning threshold value based on the lifting capacity under various working conditions and combined with a stress calculation formula, and comparing stress value data received by the early warning device with the first set early warning threshold value and the second set early warning threshold value respectively;
and if the stress value data is larger than any set early warning threshold value, sending early warning information, otherwise, not sending the early warning information.
Preferably, the early warning device further comprises: a man-machine interaction unit and a data transmission unit;
the human-computer interaction unit is used for marking and displaying the received stress value data and the early warning information on the pole holding simulation model to form visual information;
the data transmission unit is used for transmitting the visual information to a display control terminal.
Preferably, the method further comprises the following steps: a repeater;
the relay is used for enlarging the transmission distance between the data receiving and sending processing device and the early warning device.
Preferably, the data transceiving processing device further comprises a power supply;
the power supply is used for supplying power to the data receiving and transmitting processing device and the data acquisition terminal;
the number of the data acquisition terminals and the number of the data receiving and transmitting processing devices are determined based on the number of the point positions to be monitored.
Based on the same invention concept, the invention also provides a control method of the holding pole real-time stress wireless monitoring system, which comprises the following steps:
fixing a data acquisition terminal on a set monitoring point position of a holding pole, acquiring strain value data of the holding pole, and transmitting the strain value to a data receiving and transmitting processing device;
the data receiving and transmitting processing device converts the received strain value into a stress value and transmits the stress value to the early warning device;
the early warning device compares the received stress value data with a set early warning threshold value, and if the stress value data is greater than the set early warning threshold value, the early warning device sends out early warning information; sending the obtained stress value data and the early warning information to a display control terminal;
and the display control terminal receives and displays the stress value data and the early warning information sent by the early warning device, and sends a command for closing the hoisting equipment based on the early warning information.
Preferably, the stress value data is greater than a set early warning threshold, and then the early warning device sends out early warning information, including:
the method comprises the steps that a first set early warning threshold value is determined based on factory design stress values of a holding pole to be monitored, and a second set early warning threshold value is calculated based on lifting load under various working conditions and stress calculation formulas;
and if the stress value data is larger than any set early warning threshold value, sending early warning information, otherwise, not sending the early warning information.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a pole holding real-time stress wireless monitoring system, which comprises: the system comprises a data acquisition terminal, a data receiving and transmitting processing device early warning device and a display control terminal; the data acquisition terminal is fixed on a set monitoring point position of the holding pole and used for acquiring strain value digital signals of the holding pole and sending the strain value digital signals to the data receiving and transmitting processing device; the data receiving and transmitting processing terminal is fixed at a set position of the holding pole and used for processing the received strain value digital signals to obtain strain value data and converting the strain value data into stress value data to be wirelessly transmitted to the early warning device; the early warning device is used for comparing the received stress value data with a set early warning threshold value, and if the stress value data is greater than the set early warning threshold value, the early warning device sends out early warning information; sending the obtained stress value data and the early warning information to a display control terminal; and the display control terminal is used for receiving and displaying the stress value data and the early warning information sent by the early warning device, and sending a command for closing the hoisting equipment based on the early warning information. The invention utilizes the data acquisition terminal, the data receiving and transmitting processing device and the early warning device to miniaturize the monitoring system, simultaneously utilizes the data receiving and transmitting processing device to convert the acquired strain value data into stress value data which is wirelessly transmitted to the early warning device, avoids the interference of overlong signal lines to the data, simultaneously avoids the influence of the signal lines on the tower assembling and hoisting process, and utilizes the display control terminal to display the monitoring data in real time to enable the monitoring system to be more visual.
2. The set early warning threshold value is based on the type design test data of different types of holding poles produced by different manufacturers as a first set early warning threshold value, meanwhile, the stress value is calculated by measuring the actual lifting capacity of each hoisting working condition as a second set early warning threshold value, and the early warning judgment is accurate by comparing and analyzing the actually measured stress value and the set threshold value.
Drawings
Fig. 1 is a schematic structural diagram of a pole-holding real-time stress wireless monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an overall structure of a wireless monitoring system installed between nodes of a holding pole according to an embodiment of the present invention;
the device comprises a pole holding standard knot 1, a strain gauge 2, a connecting line 3, a data acquisition device 4, a data transmission line 5, a data receiving and transmitting processing device 6, a hoop 7, an inclined strut 8, a repeater 9, an early warning device 10 and a display control terminal.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
Example 1
The invention provides a pole holding real-time stress wireless monitoring system, which comprises:
the system comprises a data acquisition terminal, a data receiving and transmitting processing device 6, an early warning device and a display control terminal 10;
the data acquisition terminal is fixed on a set monitoring point position of the holding pole and used for acquiring strain value digital signals of the holding pole and sending the strain value digital signals to the data receiving and transmitting processing device 6;
the data receiving and transmitting processing terminal is fixed at a set position of the holding pole and used for processing the received strain value digital signals to obtain strain value data and converting the strain value data into stress value data to be wirelessly transmitted to the early warning device;
the early warning device is used for comparing the received stress value data with a set early warning threshold value, and if the stress value data is greater than the set early warning threshold value, the early warning device sends out early warning information; sending the obtained stress value data and the early warning information to a display control terminal;
and the display control terminal is used for receiving and displaying the stress value data and the early warning information sent by the early warning device, and sending a command for closing the hoisting equipment based on the early warning information.
Aiming at a common single holding pole, the holding pole real-time stress monitoring system is composed of 4 independent data acquisition terminals, 1 independent data receiving and transmitting processing device 6, a repeater 9, an early warning device and a display control terminal 10, as shown in fig. 1. The data acquisition terminal is composed of a strain gauge 2, a connecting wire 3 and a data acquisition device 4, and is shown in fig. 2. The data receiving and transmitting processing device 6 is provided with a power supply and can be connected with 4 data acquisition terminals through a data transmission line 5 to form 1 measurement node, and the stress data transmission with the mobile display end is realized through the repeater 9 after the data receiving and transmitting processing device 6 converts the strain data acquired by the data acquisition terminals into stress data. In addition, the number of the measuring nodes of the pole holding real-time stress monitoring system can be expanded according to the measuring requirements.
A data acquisition terminal: the strain gauge 2 is attached to key structure parts such as a main material of the pole holding standard section 1 and used for real-time measurement, and the data acquisition device 4 is fixed on the main material of the pole holding standard section 1 through a hoop 7 and used for recording strain value changes at the position under a hoisting state, as shown in figure 2.
Data transmission/reception processing device 6: and the inclined strut 8 is fixed through bolts and is used for realizing data verification, analysis processing and transmission functions of wireless communication. The data receiving and transmitting processing device 6 mainly comprises a data acquisition terminal, a digital signal processing unit, a wireless transmission module, a data transmission module and a pre-warning device, wherein the data acquisition terminal is used for receiving push data from the data acquisition terminal, filtering and denoising the received digital signal by using the digital signal processing unit, converting a strain physical quantity into a stress physical quantity, pushing the data to the wireless transmission module after the verification of data transmission is completed, realizing wireless transmission by using the wireless transmission module, and transmitting the data to the pre-warning device.
The repeater 9: the main function is to enlarge the communication distance of the wireless network.
The early warning device: the safety monitoring system mainly comprises a man-machine interaction unit and an edge calculation unit, wherein the man-machine interaction unit fuses a holding pole model, monitoring information and early warning information to realize the visualization of the safety monitoring of the working state of the holding pole, the edge calculation unit utilizes the type test data (stress data) of holding poles of different types produced by different manufacturers as a first early warning control threshold value, then calculates the stress value under each working condition in real time by a holding pole simulation model as a second early warning control threshold value according to the actual lifting capacity under each hoisting working condition, compares and analyzes the stress value obtained by real measurement with the two early warning control threshold values, if the real stress value is larger than one of the early warning threshold values, a certain part of a structure is damaged or unstable, an alarm occurs at the moment, a mobile phone end and a mobile equipment end synchronously send an alarm, and send an early warning short message to appointed personnel, the motorized winch is automatically locked, so that real-time monitoring and early warning control under each hoisting working condition are realized, test data are transmitted to the data receiving terminal by the data transmission module in real time, and the test data can be checked, analyzed, stored and backed up in real time.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (10)
1. The utility model provides a embrace wireless monitoring system of pole real-time stress which characterized in that includes:
the system comprises a data acquisition terminal, a data receiving and transmitting processing device, an early warning device and a display control terminal;
the data acquisition terminal is fixed on a set monitoring point position of the holding pole and used for acquiring strain value digital signals of the holding pole and sending the strain value digital signals to the data receiving and transmitting processing device;
the data receiving and transmitting processing terminal is fixed at a set position of the holding pole and used for processing the received strain value digital signals to obtain strain value data and converting the strain value data into stress value data to be wirelessly transmitted to the early warning device;
the early warning device is used for comparing the received stress value data with a set early warning threshold value, and if the stress value data is greater than the set early warning threshold value, the early warning device sends out early warning information; sending the obtained stress value data and the early warning information to a display control terminal;
and the display control terminal is used for receiving and displaying the stress value data and the early warning information sent by the early warning device, and sending a command for closing the hoisting equipment based on the early warning information.
2. The monitoring system of claim 1, wherein the data collection terminal comprises:
the strain gauge is attached to a set monitoring point position of the holding pole, and the data acquisition device is fixed to the set monitoring point position of the holding pole through a hoop;
the strain gauge is used for measuring the strain value of the holding pole in real time, converting the strain value into a strain value digital signal and transmitting the strain value digital signal to the data acquisition device;
the data acquisition device is used for recording the received strain value digital signals and sending the strain value digital signals to the data receiving and transmitting processing device.
3. The monitoring system of claim 1, wherein the data transceiver processing device is further configured to:
and verifying whether the stress value data sent to the early warning device is complete or not based on the data acquired by the data acquisition terminal.
4. The monitoring system of claim 1, wherein the setting an early warning threshold comprises:
the method comprises the steps of determining a first set early warning threshold value based on factory design stress values of a holding pole to be monitored and calculating a second set early warning threshold value based on lifting load under various working conditions and stress calculation formulas.
5. The monitoring system of claim 1, wherein the early warning device comprises: an edge calculation unit;
the edge calculation unit is used for calculating a second set early warning threshold value based on the lifting capacity under various working conditions and combined with a stress calculation formula, and comparing stress value data received by the early warning device with the first set early warning threshold value and the second set early warning threshold value respectively;
and if the stress value data is larger than any set early warning threshold value, sending early warning information, otherwise, not sending the early warning information.
6. The monitoring system of claim 4, wherein the early warning device further comprises: a man-machine interaction unit and a data transmission unit;
the human-computer interaction unit is used for marking and displaying the received stress value data and the early warning information on the pole holding simulation model to form visual information;
the data transmission unit is used for transmitting the visual information to a display control terminal.
7. The monitoring system of claim 1, further comprising: a repeater;
the relay is used for enlarging the transmission distance between the data receiving and sending processing device and the early warning device.
8. The monitoring system of claim 3, wherein said data transceiver processing means further comprises, a power source;
the power supply is used for supplying power to the data receiving and transmitting processing device and the data acquisition terminal;
the number of the data acquisition terminals and the number of the data receiving and transmitting processing devices are determined based on the number of the point positions to be monitored.
9. A control method of a holding pole real-time stress wireless monitoring system is characterized by comprising the following steps:
fixing a data acquisition terminal on a set monitoring point position of a holding pole, acquiring strain value data of the holding pole, and transmitting the strain value to a data receiving and transmitting processing device;
the data receiving and transmitting processing device converts the received strain value into a stress value and transmits the stress value to the early warning device;
the early warning device compares the received stress value data with a set early warning threshold value, and if the stress value data is greater than the set early warning threshold value, the early warning device sends out early warning information; sending the obtained stress value data and the early warning information to a display control terminal;
and the display control terminal receives and displays the stress value data and the early warning information sent by the early warning device, and sends a command for closing the hoisting equipment based on the early warning information.
10. The control method according to claim 9, wherein if the stress value data is greater than a set warning threshold value, the warning device issues warning information including:
the method comprises the steps that a first set early warning threshold value is determined based on factory design stress values of a holding pole to be monitored, and a second set early warning threshold value is calculated based on lifting load under various working conditions and stress calculation formulas;
and if the stress value data is larger than any set early warning threshold value, sending early warning information, otherwise, not sending the early warning information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111372215.2A CN114216597A (en) | 2021-11-18 | 2021-11-18 | Holding pole real-time stress wireless monitoring system and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111372215.2A CN114216597A (en) | 2021-11-18 | 2021-11-18 | Holding pole real-time stress wireless monitoring system and control method |
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| CN114216597A true CN114216597A (en) | 2022-03-22 |
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| CN202111372215.2A Pending CN114216597A (en) | 2021-11-18 | 2021-11-18 | Holding pole real-time stress wireless monitoring system and control method |
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- 2021-11-18 CN CN202111372215.2A patent/CN114216597A/en active Pending
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