CN113674512A - Online monitoring and early warning system and method for live cross-over construction site - Google Patents
Online monitoring and early warning system and method for live cross-over construction site Download PDFInfo
- Publication number
- CN113674512A CN113674512A CN202110603177.0A CN202110603177A CN113674512A CN 113674512 A CN113674512 A CN 113674512A CN 202110603177 A CN202110603177 A CN 202110603177A CN 113674512 A CN113674512 A CN 113674512A
- Authority
- CN
- China
- Prior art keywords
- line
- information
- early warning
- construction site
- live line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses an online monitoring and early warning system for a live cross-over construction site, which comprises an online meteorological data acquisition device, a video monitoring device, a human-computer interaction interface module, a processing module and an early warning analysis module, wherein the online meteorological data acquisition device is connected with the video monitoring device through a network; the output ends of the online meteorological data acquisition device and the video monitoring device are respectively connected with the processing module; the processing module is bidirectionally connected with the human-computer interaction interface module; the early warning analysis module is connected with the processing module in a bidirectional way; the invention carries out real-time monitoring and acquisition on meteorological data and environmental video information near the existing live line; carrying out early warning judgment by utilizing potential information on a Dyneema rope near an existing live line to obtain a live cross-over construction dangerous point prediction analysis result; the influence of meteorological conditions on a construction site is fully considered, manual experience-based design is avoided, the operability is high, powerful data support and analysis service is provided for construction designers, the safety is good, and the method has a wide market application scene.
Description
Technical Field
The invention belongs to the technical field of monitoring of electric fields and meteorological phenomena near overhead transmission lines, and particularly relates to a live cross-over construction site online monitoring and early warning system and method.
Background
In recent years, with the rapid development of power grid utilities, the path of a power transmission line becomes more and more complex, so that the live cross operation faced by overhead power transmission line stringing construction is more and more; the transmission line is an important channel for electric energy transmission and is an essential important component of a power grid; therefore, in order to reduce the power outage loss caused by the construction of the crossed crossing line and the safety of the construction of a newly-built line, the method of setting up the crossing frame is generally adopted for the uninterrupted construction, so that the construction cost can be effectively saved, and the construction period is shortened; in the electrified crossing construction of the power transmission line, the Dyneema rope above the electrified line is easily influenced by the change of air humidity, and when the air humidity is too high, the Dyneema rope is easily heated and combusted in the stringing construction process, so that the influence of meteorological conditions on the construction safety in the stringing construction process needs to be considered; however, the traditional cross-spanning construction scheme design is based on manual experience design, and the influence of air humidity, temperature, wind speed and the like on a construction site on the spanning scheme is not considered, so that the design scheme is rough; therefore, a powerful decision support is provided for the cross spanning construction of the power transmission line, and a three-dimensional visual intelligent early warning system capable of synchronous detection, automatic measurement and early warning is needed.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an online monitoring and early warning system and method for a live cross-over construction site, and aims to solve the technical problems that the existing cross-over construction is often designed based on manual experience, the influence of meteorological conditions of the construction site is not considered, and the safety is poor.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides an online monitoring and early warning system for a live cross-over construction site, which comprises an online meteorological data acquisition device, a video monitoring device, a human-computer interaction interface module, a processing module and an early warning analysis module, wherein the online meteorological data acquisition device is connected with the video monitoring device; the output ends of the online meteorological data acquisition device and the video monitoring device are respectively connected with the processing module; the processing module is bidirectionally connected with the human-computer interaction interface module; the early warning analysis module is connected with the processing module in a bidirectional way;
the online meteorological data acquisition device is used for acquiring meteorological data crossing a construction site and sending the meteorological data to the processing module; the video monitoring device is used for acquiring the environment video information crossing the construction site and sending the environment video information to the processing module; the human-computer interaction interface module is used for inputting the power information of the existing live line and displaying the potential information on the Dyneema rope near the existing live line;
the processing module is used for acquiring potential information on the Dynima rope near the existing live line according to the meteorological data, the environment video information and the electric power information of the existing live line, and transmitting the potential information on the Dynima rope near the existing live line to the human-computer interaction interface module and the early warning analysis module; the early warning analysis module is used for outputting an early warning analysis result according to potential information on the Dyneema rope near the existing live line.
Further, the meteorological data includes relative air humidity, air temperature, wind speed, wind direction, and atmospheric pressure in the vicinity of the existing live line.
Furthermore, the online meteorological data acquisition device is erected on a cross construction site; the online meteorological data acquisition device comprises a temperature sensor, a humidity sensor, an anemorumbometer and a barometer, and the output ends of the temperature sensor, the humidity sensor, the anemorumbometer and the barometer are respectively connected with the processing module.
Furthermore, the online meteorological data acquisition device further comprises a rainfall measurement device, and the output end of the rainfall measurement device is connected with the processing module.
Further, the environment video information is a three-dimensional environment model diagram near the existing live line; the three-dimensional environment model map near the existing live line is obtained by processing video image information acquired by a video detection device by using an oblique photography method.
Further, the three-dimensional environment model map near the existing live line comprises cross spanning information of the existing live line and the newly-built line, surrounding real-scene geomorphology information and tower shape information.
Further, the power information of the existing live line includes a voltage value of the existing live line and a phase value of the line.
The invention also provides an online monitoring and early warning method for the electrified cross-over construction site, which utilizes the online monitoring and early warning system for the electrified cross-over construction site; the method specifically comprises the following steps:
acquiring meteorological data, environment video information and electric power information of an existing live line crossing a construction site;
acquiring potential information on a Dyneema rope near an existing live line according to meteorological data, environment video information and electric power information of the existing live line crossing a construction site;
and carrying out early warning judgment on potential information on the Dyneema rope near the existing live line, and outputting to obtain an early warning analysis result.
Further, according to the meteorological data, the environment video information and the electric power information of the existing live line crossing the construction site, the process of acquiring the potential information on the Dyneema rope near the existing live line is as follows:
constructing a catenary model of the existing live line according to meteorological data and environmental video information of a cross construction site;
combining a catenary model of the existing live line and the electric power information of the existing live line, and obtaining simulated charge information describing the existing live line by a simulated charge method;
and obtaining potential information on the Dyneema rope near the existing live line by utilizing a superposition theorem according to the analog charge information describing the existing live line.
Further, in the process of carrying out early warning judgment on potential information on the Dyneema rope near the live line, comparing the potential information on the Dyneema rope near the existing live line with a preset threshold value;
if the potential information on the Dyneema rope near the existing live line is larger than or equal to a preset threshold value, outputting an alarm signal and marking a possible dangerous point; and if the potential information on the Dyneema rope near the existing live line is smaller than a preset threshold value, no alarm signal is generated.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a live cross-over construction site online monitoring and early warning system and a method, which realize real-time monitoring and acquisition of meteorological data and environmental video information near an existing live line by arranging an online meteorological data acquisition device and a video monitoring device; acquiring potential information on a Dyneema rope near an existing live line according to the acquired meteorological data, the environment video information and the power information of the existing live line, and performing early warning according to the potential information to obtain a prediction analysis result of the live cross-over construction dangerous point; the influence of meteorological conditions on a construction site is fully considered, the design based on manual experience is avoided, technical support and suggestions are provided for safety construction strategies for crossing of the power transmission line, the operability is high, powerful data support and analysis services are provided for construction designers, the safety is good, and the market application scene is wide.
Further, the potential distribution information on the Dynima rope near the existing live line is comprehensively analyzed by adopting relative air humidity, air temperature, wind speed, wind direction and atmospheric pressure, and the dielectric constant of the Dynima rope can be influenced after the Dynima rope is affected by damp, so that the insulating property is changed; meanwhile, the air temperature, the wind speed and the wind direction and the atmospheric pressure can influence the galloping angle of the line and the distance between the line to be built and the existing electrified line, so that the dangerous points crossing the construction site in an electrified way can be effectively monitored, and the safety of constructors is greatly guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a block diagram of an online monitoring and early warning system according to the present invention;
fig. 2 is a flow chart of the present invention for obtaining potential information on a denima rope near an existing live line.
The system comprises a weather data acquisition device 1, a video monitoring device 2, a human-computer interaction interface module 3, a processing module 4 and an early warning analysis module 5, wherein the weather data acquisition device is online; 11 temperature sensor, 12 humidity sensor, 13 anemoscope, 14 pressure gauge.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides an online monitoring and early warning system for a live cross-over construction site, which comprises an online meteorological data acquisition device 1, a video monitoring device 2, a human-computer interaction interface module 3, a processing module 4 and an early warning analysis module 5; the output ends of the online meteorological data acquisition device 1 and the video monitoring device 2 are respectively connected with the processing module 4; the processing module 4 is bidirectionally connected with the human-computer interaction interface module 3; the early warning analysis module 5 is connected with the processing module 4 in a bidirectional mode.
The online meteorological data acquisition device 1 is erected on a cross construction site and used for acquiring meteorological data of the cross construction site and sending the meteorological data to the processing module 4; wherein the meteorological data comprises relative air humidity, air temperature, wind speed, wind direction and atmospheric pressure near the existing live line; the online meteorological data acquisition device 1 comprises a temperature sensor 11, a humidity sensor 12, an anemorumbometer 13 and a barometer 14, wherein the output ends of the temperature sensor 11, the humidity sensor 12, the anemorumbometer 13 and the barometer 14 are respectively connected with the processing module 4; preferably, the online meteorological data acquisition device 1 further comprises a rainfall measurement device, and an output end of the rainfall measurement device is connected with the processing module 4.
The video monitoring device 2 is erected on a cross construction site, collects the environmental video information of the cross construction site and sends the environmental video information to the processing module 4; in this embodiment, the environmental video information is a three-dimensional environmental model map near the existing live line; the three-dimensional environment model diagram near the existing live-line comprises the live-action landform, the shape of the tower and the wiring information of the power transmission line near the live-line.
The video monitoring device 2 is used for acquiring video image information of live-action landforms, tower shapes and power transmission line wiring near the existing live-line, converting the acquired video image information of the live-action landforms, the tower shapes and the power transmission line wiring into a three-dimensional environment model map by using an oblique photography method, and then sending the three-dimensional environment model map to the processing module 4; the video monitoring device is arranged, so that the real-time feedback of the environmental change of the crossed stringing construction site is realized.
The human-computer interaction interface module 3 is used for inputting electric power signals of the existing live line and displaying potential information on the Dyneema rope near the existing live line; the power information of the existing live line comprises a voltage value of the existing live line and a phase value of the line; in the invention, the voltage value of the live line is input through the human-computer interaction interface module 3, the specific phase value of the existing live line is given, and the electric field distribution situation on the Dyneema rope near the existing live line circuit is observed.
The processing module 4 is used for acquiring potential information on the Dynima rope near the existing live line according to the meteorological data, the environment video information and the electric power information of the existing live line, and transmitting the potential information on the Dynima rope near the existing live line to the human-computer interaction interface module 3 and the early warning analysis module 5; the early warning analysis module 5 is used for outputting an early warning analysis result according to potential information on the Dyneema rope near the existing live line.
The invention also provides an online monitoring and early warning method for crossing construction sites with poor live line, which comprises the following steps:
and 3, comparing the potential information on the Dyneema rope near the existing live line with a preset threshold value, performing early warning judgment, and outputting to obtain an early warning analysis result.
Examples
As shown in fig. 1-2, the embodiment provides an online monitoring and early warning system for a live cross-over construction site, which includes an online meteorological data acquisition device 1, a video monitoring device 2, a human-computer interaction interface module 3, a processing module 4 and an early warning analysis module 5; the output ends of the online meteorological data acquisition device 1 and the video monitoring device 2 are respectively connected with the processing module 4; the processing module 4 is bidirectionally connected with the human-computer interaction interface module 3; the early warning analysis module 5 is connected with the processing module 4 in a bidirectional mode.
In the embodiment, the online meteorological data acquisition device 1 is erected on a cross construction site and is used for acquiring meteorological data near an existing live line; wherein, the meteorological data of gathering include relative air humidity, air temperature, wind speed, wind direction and atmospheric pressure to send the meteorological data of gathering to processing module 4.
The on-line meteorological data acquisition device 1 comprises a temperature sensor 11, a humidity sensor 12, an anemorumbometer 13 and a barometer 14; the output ends of the temperature sensor 11, the humidity sensor 12, the anemorumbometer 13 and the barometer 14 are respectively connected with the processing module 4; the temperature sensor 11 is used for acquiring the temperature near the existing live line, and the humidity sensor 12 is used for acquiring the relative air humidity near the existing live line; an anemorumbometer 13 collects the wind speed and wind direction near the existing live line; the barometer 14 collects the atmospheric pressure near the existing live line; in this embodiment, other meteorological data measuring devices, such as rainfall measuring devices, may be added according to the cross-over site and actual needs; the output end of the rainfall measurement device is connected with the input end of the processing module 4, and is used for collecting the real-time rainfall information near the existing live line and transmitting the real-time rainfall information to the processing module 4.
The video monitoring device 2 is erected on a cross construction site and used for acquiring the live-action landform, the shape of a tower and the video image information of the wiring of the power transmission line near the existing live-line, processing the acquired video image information by using an oblique photography method to obtain a three-dimensional environment image model, and sending the three-dimensional environment image model to the processing module 4 for subsequent analysis of potential information on the Dyneema rope near the existing live-line; in the embodiment, the video monitoring device 2 is arranged, so that the change of the stringing construction site is fed back in real time, the dangerous points of the construction site can be effectively predicted, and the safety of constructors is guaranteed; meanwhile, necessary parameter data can be improved, and the cross-over construction design scheme can be adjusted conveniently in the follow-up process.
The human-computer interaction interface module 3 is used for inputting the voltage value of the existing live line, the specific phase value of the given live line and observing the potential information on the Dyneema rope near the existing live line circuit.
The processing module 4 is used for calculating and analyzing data information acquired by the online meteorological data acquisition device and the video monitoring device to obtain potential information on the Dyneema rope near the existing live line, and transmitting a calculation result to the early warning analysis module and the man-machine interaction operation interface module.
The early warning analysis module 5 is used for judging whether potential information on the Dyneema rope near the existing live line is larger than or equal to a set threshold value; if so, indicating that dangerous points exist in the Dyneema rope near the existing live line, sending an alarm signal by the early warning analysis module, and marking corresponding dangerous points on the man-machine interaction operation interface module; if not, the situation that no dangerous point exists in the electrified crossing site is indicated, and normal stringing construction can be carried out; meanwhile, an early warning analysis result report is output.
The embodiment also provides an online monitoring and early warning method for the live cross-over construction site, which specifically comprises the following steps:
And 4, summarizing the collected meteorological data, the collected video information and the collected electric power information of the existing live line by using the processing module, carrying out potential analysis and calculation to obtain potential information on the Dyneema rope near the existing live line, and transmitting the potential information on the Dyneema rope near the existing live line to the early warning analysis module.
In this embodiment, the process of obtaining the potential information on the denima rope near the existing live line according to the meteorological data, the environmental video information, and the power information of the existing live line that cross over the construction site specifically includes the following steps:
step 41, constructing a catenary model of the existing live line according to meteorological data and environmental video information of a crossed construction site; the expression of the catenary model of the existing live line is as follows:
wherein, in the formula, σ0The horizontal stress of the lowest point is shown, gamma represents the overhead load, h represents the height difference of the two suspension points, l represents the span of the wire, and y represents the height of the power transmission line changing along with x.
In the present invention, the overhead wire specific load means a value obtained by converting a load applied to an overhead wire per unit length into a unit cross section, and the unit is N/m.mm2(ii) a The loads acting on the overhead line mainly comprise dead weight, ice weight, wind load, wind specific load after ice coating and the like, and the corresponding overhead line specific load comprises dead weight specific load, ice weight specific load, wind pressure specific load, ice coating wind pressure specific load and the like.
(1) Specific dead weight
The dead weight specific load is a specific load caused by the mass of the overhead line itself, and the size of the specific load is not considered to be affected by the change of the meteorological conditions. The dead weight ratio is calculated by the following formula:
in the formula, m0Represents the mass of the overhead line per unit length, A represents the cross-sectional area of the overhead line, g represents the gravitational acceleration, and g is 9.80665m/s2。
(2) Specific load of ice
The ice weight during icing is borne by the overhead line, and when the icing thickness is known, the icing volume on the overhead line per unit length is as follows:
taking the density of the ice coating as rho 900kg/m3＝0.9×10-3kg/m·mm2Then the ice weight specific load is:
where b denotes an icing thickness and d denotes an outer diameter of the overhead wire.
(3) Total specific load of dead weight and ice weight
γ3＝γ1+γ2。
In the embodiment, the horizontal specific load comprises an ice-free wind pressure specific load and an ice-coated wind pressure specific load, and the direction acts in the horizontal plane; to obtain the specific load of the wind pressure, the theoretical wind pressure acting on the overhead line needs to be known. The theoretical wind pressure refers to the pressure generated by the kinetic energy of unit mass of air on the unit area of a windward body. Theoretically, the wind pressure is related to the wind speed and the air density, and according to the Bernoulli equation in hydrodynamics, the theoretical wind pressure is as follows:
wherein, WvRepresenting theoretical wind pressure, v representing wind speed, p representing air density, p0Representing a dry air density at 0 deg.C and a pressure of 101.3kPa, t representing an ambient temperature, P representing an atmospheric pressure, HrDenotes the relative air humidity, PwRepresenting the saturated water vapor pressure.
(4) Specific wind pressure load in ice-free
Considering that wind speeds are usually different in the whole span, the influence of the windward area shape (body type) of an overhead line on air flow and the fact that the wind direction and the line trend always have a certain angle, the wind pressure specific load in the ice-free state is calculated according to the following formula:
wherein alpha isfThe wind speed uneven coefficient is represented, and specific values are shown in a table 1 and a table 2; c represents a wind carrier type coefficient, when d<17mm, c is 1.2, and when d317mm, c is 1.1; theta represents the angle between the wind direction and the line direction.
(5) Specific wind pressure load during ice coating
When the overhead line is coated with ice, the diameter of the overhead line is changed from d to d +2b, the windward area is increased, and the wind carrier type coefficient is different from that of the overhead line. The design rules specify: the coefficient of wind load type during ice coating was uniformly assumed to be c 1.2 regardless of the wire diameter.
The wind pressure specific load calculation formula during the icing of the overhead line can be expressed as follows:
(6) comprehensive specific load in the absence of ice and wind:
(7) comprehensive specific load during icing wind:
in this embodiment, by using the power transmission line catenary formula and the overhead line specific load calculation formula, a power transmission line catenary model under different conditions of temperature, humidity, pressure and the like can be obtained by combining the environment video information and the weather information, so that subsequent calculation is facilitated.
Step 42, combining the catenary model of the existing live line and the electric power information of the existing live line, and obtaining simulated charge information describing the existing live line by a simulated charge method; in this embodiment, a process of obtaining analog charge information describing an existing live line by an analog charge method specifically includes:
setting simulation charges and positions and numbers of matching points according to a catenary model of an existing live line;
establishing a simulation charge equation, and solving to obtain the charge value of the simulation charge of each position point;
selecting a check point on the surface of the power transmission line, calculating the potential of the check point by using the obtained charge value of the analog charge, and calculating the relative error between the potential of the check point and the input surface potential of the power transmission line;
judging the relative error and the set error value, if the relative error is smaller than the set error value, outputting the charge value of the analog charge of each position point to obtain analog charge information describing the existing charged circuit; if the error value is larger than or equal to the set error value, the analog charge and the matching point are reset and then the solution is carried out.
43, according to the analog charge information describing the existing charged line, obtaining potential information on the Dyneema rope near the existing charged line by using a superposition theorem; the method comprises the following steps of calculating potential information of an existing electrified line by using analog charge information describing the existing electrified line; in this embodiment, the acquired potential information of the existing live line is stored in the background for calling and checking.
And 6, adjusting the construction scheme of the cross crossing site and giving subsequent construction decisions by designers according to the early warning analysis result report.
The invention relates to an online monitoring and early warning system and method for an electrified cross-over construction site, which realizes real-time monitoring and acquisition of meteorological data and environmental video information near an existing electrified line by arranging an online meteorological data acquisition device and a video monitoring device; acquiring potential information on a Dyneema rope near an existing live line according to the acquired meteorological data, the environment video information and the power information of the existing live line, and performing early warning according to the potential information to obtain a prediction analysis result of the live cross-over construction dangerous point; the influence of meteorological conditions on a construction site is fully considered, the design based on manual experience is avoided, technical support and suggestions are provided for safety construction strategies for crossing of the power transmission line, the operability is high, powerful data support and analysis services are provided for construction designers, the safety is good, and the market application scene is wide.
The above-described embodiment is only one of the embodiments that can implement the technical solution of the present invention, and the scope of the present invention is not limited by the embodiment, but includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed.
Claims (10)
1. The on-line monitoring and early warning system for the electrified cross-over construction site is characterized by comprising an on-line meteorological data acquisition device (1), a video monitoring device (2), a human-computer interaction interface module (3), a processing module (4) and an early warning analysis module (5); the output ends of the online meteorological data acquisition device (1) and the video monitoring device (2) are respectively connected with the processing module (4); the processing module (4) is in bidirectional connection with the human-computer interaction interface module (3); the early warning analysis module (5) is connected with the processing module (4) in a bidirectional way;
the online meteorological data acquisition device (1) is used for acquiring meteorological data crossing a construction site and sending the meteorological data to the processing module (4); the video monitoring device (2) is used for collecting environmental video information crossing a construction site and sending the environmental video information to the processing module (4); the human-computer interaction interface module (3) is used for inputting the power information of the existing live line and displaying the potential information on the Dyneema rope near the existing live line;
the processing module (4) is used for acquiring potential information on the Dyneema rope near the existing live line according to meteorological data, environment video information and electric power information of the existing live line, and transmitting the potential information on the Dyneema rope near the existing live line to the human-computer interaction interface module (3) and the early warning analysis module (5); and the early warning analysis module (5) is used for outputting an early warning analysis result according to potential information on the Dyneema rope near the existing live line.
2. The on-line monitoring and early-warning system for the electrified cross-over construction site as claimed in claim 1, wherein the meteorological data comprises relative air humidity, air temperature, wind speed, wind direction and atmospheric pressure in the vicinity of the existing electrified line.
3. The on-line monitoring and early warning system for the electrified cross-over construction site according to claim 1, characterized in that the on-line meteorological data acquisition device (1) is erected on the cross-over construction site; the online meteorological data acquisition device (1) comprises a temperature sensor (11), a humidity sensor (12), an anemorumbometer (13) and a barometer (14), and the output ends of the temperature sensor (11), the humidity sensor (12), the anemorumbometer (13) and the barometer (14) are respectively connected with the processing module (4).
4. The on-line monitoring and early warning system for the electrified cross-over construction site as claimed in claim 3, wherein the on-line meteorological data acquisition device (1) further comprises a rainfall measurement device, and an output end of the rainfall measurement device is connected with the processing module (4).
5. The live cross-over construction site online monitoring and early warning system as claimed in claim 1, wherein the environmental video information is a three-dimensional environmental model map near an existing live line; the three-dimensional environment model map near the existing live line is obtained by processing video image information acquired by a video detection device (2) by using an oblique photography method.
6. The on-line monitoring and early warning system for the live crossover construction site according to claim 5, wherein the three-dimensional environment model map near the existing live line comprises cross-over information of the existing live line and the newly-built line, surrounding real-scene geomorphologic information and tower shape information.
7. The on-line monitoring and early-warning system for the electrified cross-over construction site as claimed in claim 1, wherein the power information of the existing electrified line comprises a voltage value of the existing electrified line and a phase value of the line.
8. An online monitoring and early warning method for a charged cross-over construction site is characterized in that the online monitoring and early warning system for the charged cross-over construction site is used according to any one of claims 1 to 7; the method specifically comprises the following steps:
acquiring meteorological data, environment video information and electric power information of an existing live line crossing a construction site;
acquiring potential information on a Dyneema rope near an existing live line according to meteorological data, environment video information and electric power information of the existing live line crossing a construction site;
and carrying out early warning judgment on potential information on the Dyneema rope near the existing live line, and outputting to obtain an early warning analysis result.
9. The on-line monitoring and early warning method for the electrified cross-over construction site as claimed in claim 8, wherein the process of acquiring the potential information on the Dyneema rope near the existing live line according to the meteorological data, the environmental video information and the power information of the existing live line of the cross-over construction site is as follows:
constructing a catenary model of the existing live line according to meteorological data and environmental video information of a cross construction site;
combining a catenary model of the existing live line and the electric power information of the existing live line, and obtaining simulated charge information describing the existing live line by a simulated charge method;
and obtaining potential information on the Dyneema rope near the existing live line by utilizing a superposition theorem according to the analog charge information describing the existing live line.
10. The on-line monitoring and early warning method for the electrified cross-over construction site as claimed in claim 8, wherein in the process of early warning and judging the potential information on the Dyneema rope near the electrified line, the potential information on the Dyneema rope near the existing electrified line is compared with a preset threshold value;
if the potential information on the Dyneema rope near the existing live line is larger than or equal to a preset threshold value, outputting an alarm signal and marking a possible dangerous point; and if the potential information on the Dyneema rope near the existing live line is smaller than a preset threshold value, no alarm signal is generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603177.0A CN113674512B (en) | 2021-05-31 | 2021-05-31 | On-line monitoring and early warning system and method for electrified crossing construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110603177.0A CN113674512B (en) | 2021-05-31 | 2021-05-31 | On-line monitoring and early warning system and method for electrified crossing construction site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113674512A true CN113674512A (en) | 2021-11-19 |
| CN113674512B CN113674512B (en) | 2023-05-02 |
Family
ID=78538198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110603177.0A Active CN113674512B (en) | 2021-05-31 | 2021-05-31 | On-line monitoring and early warning system and method for electrified crossing construction site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113674512B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563044A (en) * | 2022-03-03 | 2022-05-31 | 国网江苏省电力有限公司建设分公司 | High altitude environment information acquisition device of electric power superelevation river iron tower engineering of striding |
| CN117830858A (en) * | 2024-03-01 | 2024-04-05 | 江苏濠汉信息技术有限公司 | Cross-span transmission line safety identification method and system based on three-dimensional ranging |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266686A (en) * | 2014-10-28 | 2015-01-07 | 国家电网公司 | Method for wirelessly monitoring cross spanning of electric transmission line and device |
| CN105653760A (en) * | 2015-12-17 | 2016-06-08 | 山东大学 | Method for designing conductor spatial arrangement-considered line distribution parameter three-dimensional calculation models |
| CN109212323A (en) * | 2018-09-14 | 2019-01-15 | 国网江苏省电力有限公司检修分公司 | A kind of safe distance monitoring method and system for supertension line |
| CN109918813A (en) * | 2019-03-14 | 2019-06-21 | 国网上海市电力公司 | A kind of power frequency electric field acquisition methods based on around ultra-high-tension power transmission line |
| US20190235011A1 (en) * | 2018-01-26 | 2019-08-01 | LineVision, Inc. | System and method for power transmission line monitoring |
| CN210222990U (en) * | 2019-08-16 | 2020-03-31 | 新疆送变电有限公司 | On-line monitoring system for windproof stay wire of power transmission line |
| CN112688434A (en) * | 2021-01-15 | 2021-04-20 | 广州穗能通能源科技有限责任公司 | Monitoring and early warning method and device for power transmission and distribution line, computer equipment and medium |
-
2021
- 2021-05-31 CN CN202110603177.0A patent/CN113674512B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266686A (en) * | 2014-10-28 | 2015-01-07 | 国家电网公司 | Method for wirelessly monitoring cross spanning of electric transmission line and device |
| CN105653760A (en) * | 2015-12-17 | 2016-06-08 | 山东大学 | Method for designing conductor spatial arrangement-considered line distribution parameter three-dimensional calculation models |
| US20190235011A1 (en) * | 2018-01-26 | 2019-08-01 | LineVision, Inc. | System and method for power transmission line monitoring |
| CN109212323A (en) * | 2018-09-14 | 2019-01-15 | 国网江苏省电力有限公司检修分公司 | A kind of safe distance monitoring method and system for supertension line |
| CN109918813A (en) * | 2019-03-14 | 2019-06-21 | 国网上海市电力公司 | A kind of power frequency electric field acquisition methods based on around ultra-high-tension power transmission line |
| CN210222990U (en) * | 2019-08-16 | 2020-03-31 | 新疆送变电有限公司 | On-line monitoring system for windproof stay wire of power transmission line |
| CN112688434A (en) * | 2021-01-15 | 2021-04-20 | 广州穗能通能源科技有限责任公司 | Monitoring and early warning method and device for power transmission and distribution line, computer equipment and medium |
Non-Patent Citations (1)
| Title |
|---|
| 韩学民: "架空输电线路交叉跨越在线监测与预警系统的开发及应用", 《安徽电气工程职业技术学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563044A (en) * | 2022-03-03 | 2022-05-31 | 国网江苏省电力有限公司建设分公司 | High altitude environment information acquisition device of electric power superelevation river iron tower engineering of striding |
| CN117830858A (en) * | 2024-03-01 | 2024-04-05 | 江苏濠汉信息技术有限公司 | Cross-span transmission line safety identification method and system based on three-dimensional ranging |
| CN117830858B (en) * | 2024-03-01 | 2024-05-10 | 江苏濠汉信息技术有限公司 | Cross-span transmission line safety identification method and system based on three-dimensional ranging |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113674512B (en) | 2023-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101556195B (en) | Real-time monitoring method of ice coated on overhead transmission line conductor and system | |
| WO2016184308A1 (en) | Method for obstacle avoidance during unmanned aerial vehicle routing inspection of high-voltage double-circuit power transmission lines on same tower based on change rate of electric field intensity | |
| CN102879692B (en) | Method and device for detecting insulator through multi-rotor unmanned aerial vehicle | |
| CN109632122B (en) | Automatic temperature measurement system for rope strands of suspension bridge and temperature measurement and control platform of Internet of things comprising automatic temperature measurement and control system | |
| CN113674512B (en) | On-line monitoring and early warning system and method for electrified crossing construction site | |
| CN111442752B (en) | Method for monitoring equivalent icing thickness of power transmission line | |
| WO2012167579A1 (en) | Method and system for monitoring power transmission line of power grid | |
| CN202815124U (en) | Insulator detecting device by using multi-rotor unmanned aerial vehicle | |
| CN112398230B (en) | Power transmission line galloping monitoring system and method | |
| CN104390710A (en) | Power transmission line conductive wire temperature online detection system and method | |
| CN107543641A (en) | A kind of electric power pylon mechanical characteristic and safety Analysis monitoring system | |
| CN106226603A (en) | The corona loss of a kind of HVAC power transmission line measures system and method | |
| CN110645940A (en) | Dynamic prediction system and method for clearance distance between wire and tree | |
| CN103914737B (en) | A kind of existing the weather information computational methods of power transmission and transformation line full line | |
| CN108961094A (en) | Wind leaning fault method for early warning based on transmission line of electricity minimum air void online measuring | |
| CN113658417A (en) | Multi-source sensing data linkage early warning method and system based on overhead transmission line | |
| CN116780758A (en) | On-line monitoring system and method for multi-sensor data fusion of power transmission line | |
| CN103018793B (en) | Cloud early warning system and method of wires under extreme meteorological conditions | |
| CN207817105U (en) | A kind of electric transmission line isolator pollution flashover automatic visual observation system | |
| WO2019169435A1 (en) | A structure monitoring system, device, and method | |
| CN114459531A (en) | Station building structure safety monitoring method and device based on meteorological information and electronic equipment | |
| CN209264025U (en) | A kind of electric power line pole tower monitoring device and system | |
| CN112050860A (en) | Monitoring and analyzing method for overhead transmission line element | |
| CN110645939A (en) | System and method for dynamically predicting relative vertical distance between two wires | |
| CN216144324U (en) | Icing on-line monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |