CN115728595A - Beidou-based power transmission line fault point positioning system and method - Google Patents
Beidou-based power transmission line fault point positioning system and method Download PDFInfo
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- 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
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Abstract
The invention discloses a Beidou-based power transmission line fault point positioning method, which comprises the following steps of: the method comprises the following steps that n fault locators are equidistantly installed on each wire of the power transmission line, and each fault locator comprises a Beidou positioning device, a carrier signal generator and a carrier signal receiver; the carrier signal generator sends a carrier signal with a mark by itself through a wire of the power transmission line at regular time; the carrier signal receiver identifies a carrier signal generator corresponding to the received carrier signal; if any carrier signal receiver can only receive the carrier signal at any one end of the two ends of the lead at the position of the carrier signal generator, marking the carrier signal receiver as a fault endpoint; detecting all fault end points at the same moment, and if the two fault end points are adjacent, judging the lead between the two fault end points as a fault section; and sending the Beidou positioning coordinates of the fault section to the operation and maintenance platform. The invention solves the problem of slow positioning of the fault point of the power transmission line in the prior art.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to a Beidou-based power transmission line fault point positioning system and method.
Background
The transmission line bears the important task of power transmission, but in the operation process of the transmission line, because of ice coating, fire, geological disasters or damage, the transmission line fails to transmit electric energy, and in order to reduce the loss of the transmission line damage to economy as much as possible, the transmission line fault point needs to be positioned first, and then the first-aid repair can be carried out according to the positioning position.
At present, after a power transmission line fails, a fault point is searched step by step along a fault line mainly by manpower, but most of the power transmission lines are located in remote areas, and the distance of the power transmission lines is long, so that the fault point is difficult to be quickly positioned by manual searching, the power recovery is slow after the power transmission line fails, the national economy is lost, and how to realize the quick positioning of the fault point of the power transmission line is a problem which is urgently needed to be solved at present.
Disclosure of Invention
The invention aims to provide a Beidou-based power transmission line fault point positioning system and method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a transmission line fault point positioning system based on big dipper, includes:
a controller;
the Beidou positioning device is used for acquiring Beidou positioning coordinate information of the Beidou positioning device, carrying out short message communication with a Beidou satellite and electrically connected with the controller;
the carrier signal generator is used for generating a carrier signal and is electrically connected with the controller;
the carrier signal receiver is used for receiving carrier signals, is electrically connected with the controller and is electrically connected with the carrier signal generator through a lead;
the operation and maintenance platform is used for receiving and processing the received Beidou positioning coordinates at two ends of the fault section, and judging a fastest maintenance center and a fastest path reaching a fault point, and is electrically connected with the Beidou satellite;
and the unmanned aerial vehicle is communicated with the operation and maintenance platform through Beidou short messages.
A Beidou-based power transmission line fault point positioning method comprises the following steps:
step 1: n fault locators are equidistantly installed on each wire of the power transmission line and comprise a Beidou positioning device, a carrier signal generator and a carrier signal receiver, wherein n is a positive integer greater than or equal to 2;
step 2: the carrier signal generator sends a carrier signal with a mark by itself through a wire of the power transmission line at regular time;
step 3, the carrier signal receiver receives the carrier signal and identifies the carrier signal generator corresponding to the received carrier signal;
step 4, if any carrier signal receiver can only receive the carrier signal at any one end of the two ends of the conductor at the position of the carrier signal generator, marking the carrier signal receiver as a fault endpoint;
step 5, detecting all fault end points at the same moment, and if the two fault end points are adjacent, judging the lead between the two fault end points as a fault section;
and 6, if the fault section is monitored, starting Beidou positioning devices at two ends of the fault section for positioning, and sending Beidou positioning coordinates at two ends of the fault section to the operation and maintenance platform through Beidou short messages.
Further, the method also comprises the following steps:
and 7, after receiving the Beidou positioning coordinates at the two ends of the fault section, the operation and maintenance platform sends out the unmanned aerial vehicle to patrol the wires at the two ends of the fault section, acquires the Beidou positioning coordinates of the accurate fault point and sends the Beidou positioning coordinates to the operation and maintenance platform through the Beidou short message.
Further, the method also comprises the following steps:
and 8, distributing the maintenance task to a maintenance center with the shortest arrival time by the operation and maintenance platform according to the accurate Beidou positioning coordinate of the fault point.
Specifically, the method for determining the shortest arrival time in step 8 includes:
s01, acquiring a satellite remote sensing map with altitude information and road data of an area with an accurate fault point as a circle center and a radius of r;
s02, acquiring the coordinates of the overhaul centers in a search area with the accurate fault point as the center of a circle and the radius of r, and if the number of the overhaul centers detected in the search area is less than 2, increasing r and continuing to retrieve until the number of the overhaul centers detected in the search area is more than 2;
s03, establishing a speed function v (x),
where v (x) is the velocity at position x, x is the position, f 1 (a) For a speed penalty function with road data and walking only, f 2 (a) Is a speed penalty function without road data, a is gradient, v 2 The walking speed on the flat ground with road data v 3 The walking speed of the flat ground without road data;
s04, establishing a speed function application rule: v. of 1 Can only be used for the first segment of the journey, and when there is road data and the vehicle-usable road is not the first segment, the value of the road speed function with road data and vehicle-usable is v 2 ；
S05, covering and separating a satellite map with elevation information of an area without road data by using an i-j rectangular matrix, setting the length and width of a minimum square grid in the rectangular matrix as d, setting i as the number of square grids in the width direction of the rectangular matrix, and setting j as the number of square grids in the length direction of the rectangular matrix;
s06, calculating the time from the rectangular matrix to the adjacent node according to the road information and the elevation information of the place where each square is located;
s07, calculating a shortest time-consuming path from a node where each maintenance center is located to a node where an accurate fault point is located by using a fastest path algorithm;
and S08, comparing the shortest consumed time of each maintenance center, distributing maintenance tasks to the maintenance center with the shortest consumed time, and sending the corresponding shortest path to the maintenance center.
Specifically, the fastest path algorithm in step S07 includes the following steps:
s07-1, taking a node where a maintenance center is located as a starting point, and finding out an adjacent first node which is reached fastest;
s07-2, calculating the time required by the first node to the adjacent node, and updating the time overhead from the starting point to the first node neighbor;
s07-3, repeating the steps S07-1 and S07-2 until the same is done for each node in the rectangular square matrix;
and S07-4, calculating a final path.
Specifically, the unmanned aerial vehicle in step 7 may determine the fault point according to the following conditions:
visually judging, namely judging the integrity of the line;
and measuring infrared temperature, detecting the line temperature, and judging that the detection point temperature is higher than the average line temperature as a fault point.
Compared with the prior art, the invention has the beneficial effects that:
1. the carrier signal is sent by the carrier signal generator, the carrier signal is received by the carrier signal receiver, the fault section is positioned by judging the conditions of the carrier signals at two ends received by the carrier signal receiver by utilizing the characteristic that a fault point can block the transmission of the carrier signal or increase the noise of the transmission of the carrier signal, and the fault section can be positioned immediately once the fault occurs;
2. the Beidou short message is used for sending the fault section and the fault point coordinates, so that the problem of signal transmission in the area which cannot be covered by the 4G/5G network is solved;
3. the unmanned aerial vehicle is used for polling the fault section to search for fault points, so that the troubleshooting range is further reduced, and a maintainer can quickly find the fault points;
4. through a satellite remote sensing map with elevation information and road data, a maintenance center which reaches a fault point fastest is searched, and the fault repairing speed is improved.
Drawings
FIG. 1 is a schematic diagram of a positioning system according to the present invention;
fig. 2 is a schematic flow chart of a positioning method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a transmission line fault point positioning system based on big dipper, includes: a controller; the Beidou positioning device is used for acquiring Beidou positioning coordinate information of the Beidou positioning device, carrying out short message communication with a Beidou satellite and electrically connected with the controller; the carrier signal generator is used for generating a carrier signal and is electrically connected with the controller; the carrier signal receiver is used for receiving a carrier signal, is electrically connected with the controller and is electrically connected with the carrier signal generator through a lead; the operation and maintenance platform is used for receiving and processing the received Beidou positioning coordinates at two ends of the fault section, and judging a fastest maintenance center and a fastest path reaching a fault point, and is electrically connected with the Beidou satellite; and the unmanned aerial vehicle is communicated with the operation and maintenance platform through Beidou short messages.
The carrier signal generator sends the carrier signal, the carrier signal receiver receives the carrier signal, the fault section is positioned by judging the conditions of the carrier signals at two ends received by the carrier signal receiver by utilizing the characteristic that a fault point can block the transmission of the carrier signal or increase the noise of the transmission of the carrier signal, and the fault section can be immediately positioned once the fault occurs.
Example 2
As shown in fig. 2, a Beidou-based power transmission line fault point positioning method includes the following steps:
step 1: n fault locators are equidistantly installed on each wire of the power transmission line and comprise a Beidou positioning device, a carrier signal generator and a carrier signal receiver, wherein n is a positive integer greater than or equal to 2;
and 2, step: the carrier signal generator sends a carrier signal with a mark by itself through a wire of the power transmission line at regular time;
step 3, the carrier signal receiver receives the carrier signal and identifies the carrier signal generator corresponding to the received carrier signal;
step 4, if any carrier signal receiver can only receive the carrier signal at any one end of the two ends of the conductor at the position of the carrier signal generator, marking the carrier signal receiver as a fault endpoint;
step 5, detecting all fault end points at the same moment, and if the two fault end points are adjacent, judging the lead between the two fault end points as a fault section;
and 6, if the fault section is monitored, starting Beidou positioning devices at two ends of the fault section for positioning, and sending Beidou positioning coordinates at two ends of the fault section to the operation and maintenance platform through Beidou short messages.
Example 3
Further, in order to obtain a more accurate position of the fault point and reduce a troubleshooting range, the method further includes:
and 7, after receiving the Beidou positioning coordinates at the two ends of the fault section, the operation and maintenance platform sends out the unmanned aerial vehicle to patrol the wires at the two ends of the fault section, acquires the Beidou positioning coordinates of the accurate fault point and sends the Beidou positioning coordinates to the operation and maintenance platform through the Beidou short message.
Example 4
Further, in order to further improve the fault repairing speed, a maintenance center which reaches the fault point most quickly is searched, and the method further comprises the following steps:
and 8, distributing the maintenance task to a maintenance center with the shortest arrival time by the operation and maintenance platform according to the accurate Beidou positioning coordinate of the fault point.
Specifically, the method for determining that the arrival time is the shortest in step 8 includes:
s01, acquiring a satellite remote sensing map with altitude information and road data of an area with an accurate fault point as a circle center and a radius of r;
s02, acquiring the coordinates of the overhaul centers in a search area with the accurate fault point as the center of a circle and the radius of r, and if the number of the overhaul centers detected in the search area is less than 2, increasing r and continuing to retrieve until the number of the overhaul centers detected in the search area is more than 2;
s03, establishing a speed function v (x),
where v (x) is the velocity at position x, x is the position, f 1 (a) For a speed penalty function with road data and walking only, f 2 (a) Is a speed penalty function in the absence of road data, a is the gradient, v 2 The walking speed on the flat ground with road data v 3 The walking speed of the flat ground when no road data exists;
s04, establishing a speed function application rule: v. of 1 Can only be used for the first segment of the journey, and when there is road data and the vehicle-usable road is not the first segment, the value of the road speed function with road data and vehicle-usable is v 2 ；
S05, covering and separating a satellite map with elevation information of an area without road data by using an i-j rectangular matrix, setting the length and width of a minimum square grid in the rectangular matrix as d, setting i as the number of square grids in the width direction of the rectangular matrix, and setting j as the number of square grids in the length direction of the rectangular matrix;
s06, calculating time from the rectangular matrix to an adjacent node according to road information and elevation information of a place where each square is located;
s07, calculating a shortest time-consuming path from a node where each maintenance center is located to a node where an accurate fault point is located by using a fastest path algorithm;
and S08, comparing the shortest consumed time of each maintenance center, distributing maintenance tasks to the maintenance center with the shortest consumed time, and sending the corresponding shortest path to the maintenance center.
Specifically, the fastest path algorithm in step S07 includes the following steps:
s07-1, taking a node where a maintenance center is located as a starting point, and finding out an adjacent first node which is reached fastest;
s07-2, calculating the time required by the first node to the adjacent node, and updating the time overhead from the starting point to the first node neighbor;
s07-3, repeating the steps S07-1 and S07-2 until all the nodes in the rectangular square matrix are processed;
and S07-4, calculating a final path.
Example 5
Specifically, in embodiment 3, the determination of the fault point by the drone in step 7 may be performed under the following conditions:
visually judging, namely judging the integrity of the line;
and measuring infrared temperature, detecting the line temperature, and judging that the detection point temperature is higher than the average line temperature as a fault point.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, for example, as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a transmission line fault point positioning system based on big dipper which characterized in that includes:
a controller;
the Beidou positioning device is used for acquiring Beidou positioning coordinate information of the Beidou positioning device, carrying out short message communication with a Beidou satellite and electrically connected with the controller;
the carrier signal generator is used for generating a carrier signal and is electrically connected with the controller;
the carrier signal receiver is used for receiving a carrier signal, is electrically connected with the controller and is electrically connected with the carrier signal generator through a lead;
the operation and maintenance platform is used for receiving and processing the received Beidou positioning coordinates at two ends of the fault section, and judging a fastest maintenance center and a fastest path reaching a fault point, and is electrically connected with the Beidou satellite;
and the unmanned aerial vehicle is communicated with the operation and maintenance platform through Beidou short messages.
2. A Beidou-based power transmission line fault point positioning method is characterized by comprising the following steps:
step 1: n fault locators are equidistantly installed on each wire of the power transmission line and comprise a Beidou positioning device, a carrier signal generator and a carrier signal receiver, wherein n is a positive integer greater than or equal to 2;
step 2: the carrier signal generator sends a carrier signal with a mark by itself through a wire of the power transmission line at regular time;
step 3, the carrier signal receiver receives the carrier signal and identifies the carrier signal generator corresponding to the received carrier signal;
step 4, if any carrier signal receiver can only receive the carrier signal at any one end of the two ends of the conductor at the position of the carrier signal generator, marking the carrier signal receiver as a fault endpoint;
step 5, detecting all fault end points at the same moment, and if the two fault end points are adjacent, judging the lead between the two fault end points as a fault section;
and 6, if the fault section is monitored, starting Beidou positioning devices at two ends of the fault section for positioning, and sending Beidou positioning coordinates at two ends of the fault section to the operation and maintenance platform through Beidou short messages.
3. The Beidou-based power transmission line fault point positioning method according to claim 2, further comprising:
and 7, after receiving the Beidou positioning coordinates at the two ends of the fault section, the operation and maintenance platform sends out the unmanned aerial vehicle to patrol the wires at the two ends of the fault section, acquires the Beidou positioning coordinates of the accurate fault point and sends the Beidou positioning coordinates to the operation and maintenance platform through the Beidou short message.
4. The Beidou-based power transmission line fault point positioning method according to claim 2, further comprising:
and 8, distributing the maintenance task to a maintenance center with the shortest arrival time by the operation and maintenance platform according to the accurate Beidou positioning coordinate of the fault point.
5. The Beidou-based power transmission line fault point positioning method according to claim 4, wherein the shortest arrival time determination method in the step 8 is as follows:
s01, acquiring a satellite remote sensing map with altitude information and road data of an area with an accurate fault point as a circle center and a radius of r;
s02, acquiring the coordinates of the overhaul centers in a search area with the accurate fault point as the center of a circle and the radius of r, and if the number of the overhaul centers detected in the search area is less than 2, increasing r and continuing to retrieve until the number of the overhaul centers detected in the search area is more than 2;
s03, establishing a speed function v (x),
where v (x) is the velocity at position x, x is the position, f 1 (a) For a speed penalty function with road data and walking only, f 2 (a) Is a speed penalty function in the absence of road data, a is the gradient, v 2 The walking speed on the flat ground when there is road data v 3 The walking speed of the flat ground when no road data exists;
s04, establishing a speed function application rule: v. of 1 Can be used only for the first segment of the journey, and when there is road data and the road on which the vehicle can be used is not the first segment, the value of the road speed function on which the road data and the vehicle can be used is v 2 ；
S05, covering and separating a satellite map with elevation information of an area without road data by using an i-j rectangular matrix, setting the length and width of a minimum square grid in the rectangular matrix as d, setting i as the number of square grids in the width direction of the rectangular matrix, and setting j as the number of square grids in the length direction of the rectangular matrix;
s06, calculating the time from the rectangular matrix to the adjacent node according to the road information and the elevation information of the place where each square is located;
s07, calculating a shortest time-consuming path from a node where each maintenance center is located to a node where an accurate fault point is located by using a fastest path algorithm;
and S08, comparing the shortest consumed time of each maintenance center, distributing maintenance tasks to the maintenance center with the shortest consumed time, and sending the corresponding shortest path to the maintenance center.
6. The Beidou-based power transmission line fault point positioning method according to claim 5, wherein the fastest path algorithm in the step S07 comprises the following steps:
s07-1, taking a node where a maintenance center is located as a starting point, and finding out an adjacent first node which is reached fastest;
s07-2, calculating the time required by the first node to the adjacent node, and updating the time overhead from the starting point to the first node neighbor;
s07-3, repeating the steps S07-1 and S07-2 until the same is done for each node in the rectangular square matrix;
and S07-4, calculating a final path.
7. The Beidou-based power transmission line fault point positioning method according to claim 3, wherein the unmanned aerial vehicle in the step 7 can judge the fault point according to the following conditions:
visually judging, namely judging the integrity of the line;
and measuring infrared temperature, detecting the line temperature, and judging that the detection point temperature is higher than the average line temperature as a fault point.
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