A foreign body monitoring device, method and storage medium for power distribution overhead line

Abstract

The present invention relates to the technical field of high voltage equipment, and discloses a device, method and storage medium for monitoring foreign objects in overhead power distribution lines. The device includes a laser ranging module, a laser reflection module and a centralized processor. The present invention applies to setting a laser ranging module and a centralized processor on a first pole tower, and setting a laser reflection module and a centralized processor on a second pole tower, wherein the centralized processor determines whether there is a foreign object approaching the overhead power distribution line between the first pole tower and the second pole tower based on the comparison result of the laser ranging data regularly output by the laser ranging module and a preset threshold value, and issues a corresponding alarm, so that the relevant operation and maintenance personnel can clearly understand the specific fault location and fault time, and realize timely and effective monitoring of the overhead power distribution line.

Description

Technical Field

[0001] The present invention relates to the technical field of high voltage equipment, and in particular to a device, method and storage medium for monitoring foreign matter in overhead power distribution lines. Background Art

[0002] The overhead distribution lines are long, and in the line area, foreign objects such as construction cranes, buildings under construction, and tall plants may touch the overhead distribution lines, causing the overhead distribution lines to trip. Therefore, it is necessary to monitor the overhead distribution lines for foreign objects.

[0003] In the prior art, the following two foreign body monitoring solutions are commonly used:

[0004] First, the relevant operation and maintenance personnel patrol the distribution overhead line regularly or according to the foreign object touch reminder information from others. The operation and maintenance personnel use the distance meter to measure the distance between the foreign object and the wire, and analyze whether there is a tripping risk based on the measured distance. This solution has the disadvantages of long patrol intervals and low feedback efficiency.

[0005] The second is to determine it through mechanical indication, which includes: judging the line to which the fault belongs according to the action of the line reclosing switch, judging the section to which the fault belongs according to the opening and closing of the switch; judging the distribution overhead line to which the fault belongs according to the indication of the line fault indicator; this solution cannot accurately locate the fault, and requires operation and maintenance personnel to cooperate with inspections to determine the specific fault location, which is time-consuming and can only realize monitoring and alarm after the distribution overhead line trips, and cannot serve as a fault warning.

[0006] It can be seen that the existing foreign object monitoring scheme cannot monitor foreign objects on distribution overhead lines in a timely and effective manner. Summary of the invention

[0007] The present invention provides a device, method and storage medium for monitoring foreign matter in a power distribution overhead line, which solves the technical problem of timely and effectively monitoring foreign matter in a power distribution overhead line.

[0008] A first aspect of the present invention provides a distribution overhead line foreign body monitoring device, comprising:

[0009] Laser ranging module, laser reflection module and centralized processor;

[0010] The laser ranging module and the centralized processor are both arranged at the top of the first tower, and the laser ranging module includes a laser ranging element for periodically emitting and receiving laser signals;

[0011] The laser reflection module is arranged on the second pole tower and is used to reflect the laser signal emitted by the laser ranging element;

[0012] The centralized processor is connected to the laser ranging element; the centralized processor is used to receive the laser ranging value output by the laser ranging element, and when the laser ranging value is less than a first distance threshold, it is determined that there is a foreign object close to the distribution overhead line between the first tower and the second tower, and an alarm is issued.

[0013] According to an achievable manner of the first aspect of the present invention, the first distance threshold is not greater than a distance between the first tower and the second tower.

[0014] According to an achievable manner of the first aspect of the present invention, the first distance threshold is equal to a difference between the gear span and a preset gear span error.

[0015] According to an achievable manner of the first aspect of the present invention, the centralized processor is further configured to determine that the laser ranging element or the laser reflection module is excessively offset when the laser ranging value is greater than a second distance threshold.

[0016] According to an achievable manner of the first aspect of the present invention, the second distance threshold is greater than the first distance threshold.

[0017] According to an achievable manner of the first aspect of the present invention, the second distance threshold is equal to the sum of the gear distance and a preset gear distance error.

[0018] According to an achievable manner of the first aspect of the present invention, the centralized processor is communicatively connected to a user terminal, and the centralized processor sends an alarm message to the user terminal when the laser ranging value is less than the first distance threshold or greater than the second distance threshold.

[0019] According to an achievable manner of the first aspect of the present invention, the laser ranging module further comprises a power supply controller; the power supply controller is configured to provide a stable voltage to the laser ranging element, and to control the laser ranging cycle of the laser ranging element through a built-in time relay.

[0020] According to an achievable manner of the first aspect of the present invention, the laser ranging module further includes a solar panel, and the solar panel is connected to the laser ranging element.

[0021] According to an achievable manner of the first aspect of the present invention, the laser ranging module further comprises a support frame fixed on the first pole tower, and the support frame is provided with a plurality of through holes for embedding the laser ranging element.

[0022] A second aspect of the present invention provides a method for monitoring foreign objects in a power distribution overhead line. The method is based on a device for monitoring foreign objects in a power distribution overhead line as described in any one of the above items, and the method comprises:

[0023] The centralized processor receives the laser distance measurement value sent by the laser distance measurement element;

[0024] The centralized processor compares the laser ranging value with a first distance threshold, and when the laser ranging value is less than the first distance threshold, determines that there is a foreign object close to the distribution overhead line between the first tower and the second tower, and issues an alarm.

[0025] According to an achievable manner of the second aspect of the present invention, the method further includes:

[0026] When the laser ranging value is not less than the first distance threshold, the centralized processor compares the laser ranging value with a second distance threshold;

[0027] When the laser ranging value is greater than the second distance threshold, the centralized processor determines that the laser ranging element or the laser reflection module is offset too much.

[0028] According to an achievable manner of the second aspect of the present invention, the method further includes:

[0029] The centralized processor sends an alarm message to the user terminal when the laser ranging value is less than the first distance threshold or greater than the second distance threshold.

[0030] A third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of any one of the above-mentioned methods for monitoring foreign objects in distribution overhead lines are implemented.

[0031] It can be seen from the above technical solutions that the present invention has at least the following advantages:

[0032] The present invention applies to setting a laser ranging module and a centralized processor on a first pole tower, and setting a laser reflection module and a centralized processor on a second pole tower, wherein the centralized processor determines whether there is a foreign object approaching the distribution overhead line between the first pole tower and the second pole tower based on the comparison result of the laser ranging data regularly output by the laser ranging module and the preset threshold value, and issues a corresponding alarm, so that the relevant operation and maintenance personnel can clearly understand the specific fault location and fault time, and realize timely and effective monitoring of the distribution overhead line. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 A schematic diagram of the structural connection of a power distribution overhead line foreign body monitoring device provided by an optional embodiment of the present invention;

[0035] Figure 2 A schematic diagram of a laser ranging module and a centralized processor provided in an optional embodiment of the present invention being arranged on a first pole tower;

[0036] Figure 3 A schematic diagram of a laser reflection module provided in an optional embodiment of the present invention being arranged on a second pole tower;

[0037] Figure 4 A schematic flow chart of a method for monitoring foreign matter in overhead power distribution lines provided as an optional embodiment of the present invention.

[0038] Reference numerals:

[0039] 1-laser ranging module; 2-laser reflection module; 3-centralized processor; 4-first pole tower; 5-laser ranging element; 6-second pole tower; 7-power controller; 8-support frame; 9-solar panel. DETAILED DESCRIPTION

[0040] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] In order to solve the technical problem that the existing solution cannot timely and effectively monitor foreign objects in distribution overhead lines, an embodiment of the present invention provides a foreign object monitoring device for distribution overhead lines.

[0042] See also Figure 1 , Figure 2 and Figure 3 The distribution overhead line foreign body monitoring device comprises:

[0043] Laser ranging module 1, laser reflection module 2 and centralized processor 3;

[0044] The laser ranging module 1 and the centralized processor 3 are both arranged on the top of the first pole tower 4. The laser ranging module 1 includes a laser ranging element 5 for periodically emitting and receiving laser signals.

[0045] The laser reflection module 2 is arranged on the second pole tower 6, and is used to reflect the laser signal emitted by the laser ranging element 5;

[0046] The centralized processor 3 is connected to the laser ranging element 5; the centralized processor 3 is used to receive the laser ranging value output by the laser ranging element 5, and when the laser ranging value is less than a first distance threshold, it is determined that there is a foreign object approaching the distribution overhead line between the first tower 4 and the second tower 6, and an alarm is issued.

[0047] The overhead power distribution lines are usually installed on multiple poles and towers because of their long length. It should be noted that the "first" and "second" are only used to explain different poles and towers.

[0048] The laser distance measuring element 5 uses a pulse method or a phase method to measure distance. To ensure that the laser distance measuring element 5 can effectively measure distance, the distance that the laser distance measuring element 5 can accurately measure needs to be greater than the span between the first tower 4 and the second tower 6. The span refers to the horizontal distance between the first tower 4 and the second tower 6.

[0049] As an optional implementation, when the distance between the first pole tower 4 and the second pole tower 6 is 60 meters, a laser distance measuring element 5 that can accurately measure the distance within 0-100 meters can be selected.

[0050] When there is a foreign object on the overhead power distribution line between the first tower 4 and the second tower 6, the distance measured by the laser distance measuring element 5 must be smaller than the distance between the first tower 4 and the second tower 6 due to the reflection of the laser by the foreign object. Based on this principle, in the embodiment of the present invention, the first distance threshold is set not to be greater than the distance between the first tower 4 and the second tower 6.

[0051] In one implementation, the first distance threshold may be set to be equal to the distance between the first pole tower 4 and the second pole tower 6 .

[0052] Since the first tower 4 or the second tower 6 may be offset due to environmental factors, in order to set the distance threshold more accurately to ensure the reliability of foreign object monitoring of the distribution overhead line, the error value of the span between the first tower 4 and the second tower 6 can be determined according to actual conditions, and then the preset span error can be set according to the error value.

[0053] Therefore, in another embodiment, the first distance threshold may be set equal to the difference between the span and the preset span error to improve the accuracy of the centralized processor 3 in determining whether the foreign object is located on the overhead distribution lines of the first tower 4 and the second tower 6.

[0054] Due to storms, building construction and other reasons, the laser distance measuring element 5 or the laser reflection module 2 located on the first tower 4 may be offset to a certain extent, thereby affecting the effectiveness of foreign object monitoring. To this end, in an embodiment of the present invention, the centralized processor 3 is also used to determine that the laser distance measuring element 5 or the laser reflection module 2 is offset too much when the laser distance measurement value is greater than the second distance threshold.

[0055] The second distance threshold is greater than the first distance threshold.

[0056] As a preferred implementation, the second distance threshold is equal to the sum of the gear span and a preset gear span error.

[0057] By comparing the laser ranging data fed back by the laser ranging element 5 with the second distance threshold, it is possible to promptly detect whether the laser ranging element 5 or the laser reflection module 2 is offset too much, thereby promptly notifying the relevant operation and maintenance personnel to perform corresponding maintenance on the distribution overhead line foreign object monitoring device, thereby ensuring that the distribution overhead line foreign object monitoring device can effectively monitor foreign objects on the distribution overhead line.

[0058] It should be noted that, in the embodiment of the present invention, the centralized processor 3 may send an alarm signal through a corresponding sensor, or send an alarm message to a preset user terminal, or send an alarm message to a preset distribution overhead line foreign object monitoring platform when an alarm is generated.

[0059] Wherein, when a corresponding sensor is used to send an alarm signal, the sensor may be a buzzer sensor. Wherein, when an alarm message is sent to a preset distribution overhead line foreign body monitoring platform, the alarm message may be displayed on the interface of the distribution overhead line foreign body monitoring platform.

[0060] In an achievable manner, the centralized processor 3 is connected to the user terminal in communication, and the centralized processor 3 sends an alarm message to the user terminal when the laser ranging value is less than the first distance threshold or greater than the second distance threshold. The alarm message includes a determination result corresponding to the laser ranging value and corresponding position information. The position information may be the number information of the laser ranging element 5 that sends the laser ranging value, the number information of the first pole tower 4, the number information of the second pole tower 6, the position information of the laser ranging element 5, the position information of the first pole tower 4 and / or the position information of the second pole tower 6. Furthermore, the alarm message may also include the laser ranging value.

[0061] The embodiment of the present application sends alarm information to operation and maintenance personnel, so that the relevant operation and maintenance personnel can clearly understand the specific fault location and fault time, and realize timely and effective monitoring of distribution overhead lines.

[0062] To realize the functions of the above-mentioned centralized processor 3, the centralized processor 3 may include the following modules:

[0063] A data receiving module, used for receiving the laser ranging value output by the laser ranging element 5;

[0064] A data analysis module is used to analyze the laser ranging value, and when the laser ranging value is less than a first distance threshold, determine that there is a foreign object close to the distribution overhead line between the first pole tower 4 and the second pole tower 6; and when the laser ranging value is greater than a second distance threshold, determine that the laser ranging element 5 or the laser reflection module 2 is offset too much;

[0065] The information sending module is used to send the alarm information.

[0066] A storage unit may be configured in the data analysis module to store the first distance threshold and the second distance threshold. Further, the storage unit may be configured to store the laser distance measurement value output by the laser distance measurement element 5 and the above-mentioned position information.

[0067] In another embodiment, the storage unit may not be configured in the data analysis module, and a data storage module is separately provided in the centralized processor 3. The data storage module supports read and write functions and is used to replace the storage unit to implement the functions of the storage unit.

[0068] In one achievable manner, the laser ranging module 1 further includes a power supply controller 7; the power supply controller 7 is configured to provide a stable voltage to the laser ranging element 5, and to control the laser ranging cycle of the laser ranging element 5 through a built-in time relay, thereby ensuring that the laser ranging element 5 can work reliably.

[0069] In an achievable manner, the laser ranging module 1 further comprises a support frame 8 fixed to the first pole tower 4, the support frame 8 being provided with a plurality of through holes for embedding the laser ranging element 5, the number of openings depending on the laser ranging density. The support frame 8 can support the weight of other equipment or elements on the first pole tower 4, ensuring the position stability of the laser ranging element 5. As an achievable manner, the support frame 8 is a hollow tubular member for arranging power lines and data lines.

[0070] Correspondingly, the laser reflection module 2 can also be installed on the second tower 6 through another support frame, and the other support frame can support the entire weight of the laser reflection module 2.

[0071] As an optional mode, the laser reflection module 2 is a reflection plate, and a channel is arranged in the reflection plate. The other support frame comprises a first connecting member and a second connecting member extending from the end of the first connecting member, the first connecting member is fixedly mounted on the second pole tower 6, and the second connecting member can be matched and engaged with the channel.

[0072] It should be noted that the laser reflection module 2 can also be installed on the second tower 6 by other connection methods, such as welding or bonding, and the present embodiment is not limited thereto.

[0073] In one achievable manner, the laser ranging module 1 further includes a solar panel 9 , and the solar panel 9 is connected to the laser ranging element 5 to provide energy for the laser ranging element 5 .

[0074] As a preference, Figure 2 As shown, the solar panel 9 is arranged above the laser ranging element 5 to better collect solar energy.

[0075] The present invention also provides a method for monitoring foreign objects in a power distribution overhead line. The method is based on the device for monitoring foreign objects in a power distribution overhead line as described in any one of the above.

[0076] Figure 4 A schematic flow chart of a method for monitoring foreign matter in overhead power distribution lines provided as an optional embodiment of the present invention.

[0077] like Figure 4 As shown, the method includes:

[0078] S1 The centralized processor 3 receives the laser distance measurement value sent by the laser distance measurement element 5;

[0079] S2 The centralized processor 3 compares the laser ranging value with a first distance threshold. When the laser ranging value is less than the first distance threshold, it is determined that there is a foreign object approaching the overhead distribution line between the first pole tower 4 and the second pole tower 6, and an alarm is issued.

[0080] In one implementation, the method further includes:

[0081] When the laser ranging value is not less than the first distance threshold, the centralized processor 3 compares the laser ranging value with a second distance threshold;

[0082] When the laser distance measurement value is greater than the second distance threshold, the centralized processor 3 determines that the laser distance measurement element 5 or the laser reflection module 2 is offset too much.

[0083] In one implementation, the method further includes:

[0084] The centralized processor 3 sends an alarm message to the user terminal when the laser ranging value is less than the first distance threshold or greater than the second distance threshold.

[0085] The present invention also provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of any one of the above-mentioned methods for monitoring foreign objects in distribution overhead lines are implemented.

[0086] In several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways.

[0087] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article or device.

[0088] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0089] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0090] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foreign body monitoring device for overhead power distribution lines, characterized in that: include: Laser ranging module, laser reflection module and centralized processor; The laser ranging module and the centralized processor are both arranged at the top of the first tower, and the laser ranging module includes a laser ranging element for periodically emitting and receiving laser signals; The laser reflection module is arranged on the second pole tower and is used to reflect the laser signal emitted by the laser ranging element; The centralized processor is connected to the laser ranging element; the centralized processor is used to receive the laser ranging value output by the laser ranging element, and when the laser ranging value is less than a first distance threshold, it is determined that there is a foreign object close to the distribution overhead line between the first tower and the second tower, and an alarm is issued; the centralized processor is also used to determine that the laser ranging element or the laser reflection module is too offset when the laser ranging value is greater than a second distance threshold, and the second distance threshold is equal to the sum of the span and the preset span error; The span refers to the horizontal distance between the first tower and the second tower.

2. A distribution overhead line foreign body monitoring device according to claim 1, characterized in that: The first distance threshold is not greater than a distance between the first tower and the second tower.

3. A distribution overhead line foreign body monitoring device according to claim 2, characterized in that: The first distance threshold is equal to the difference between the gear distance and a preset gear distance error.

4. A distribution overhead line foreign body monitoring device according to claim 1, characterized in that: The second distance threshold is greater than the first distance threshold.

5. A distribution overhead line foreign body monitoring device according to claim 1, characterized in that: The centralized processor is in communication connection with the user terminal, and the centralized processor sends an alarm message to the user terminal when the laser ranging value is less than the first distance threshold or greater than the second distance threshold.

6. A distribution overhead line foreign body monitoring device according to claim 1, characterized in that: The laser ranging module also includes a power supply controller; the power supply controller is configured to provide a stable voltage to the laser ranging element and control the laser ranging cycle of the laser ranging element through a built-in time relay.

7. A distribution overhead line foreign body monitoring device according to claim 1, characterized in that: The laser ranging module also includes a solar panel, and the solar panel is connected to the laser ranging element.

8. The device for monitoring foreign matter in overhead power distribution lines according to claim 1, characterized in that: The laser ranging module also includes a support frame fixed on the first pole tower, and the support frame is provided with a plurality of through holes for embedding the laser ranging element.

9. A method for monitoring foreign matter in overhead power distribution lines, characterized in that: The method is based on a power distribution overhead line foreign body monitoring device according to any one of claims 1 to 8, and the method comprises: The centralized processor receives the laser distance measurement value sent by the laser distance measurement element; The centralized processor compares the laser ranging value with a first distance threshold, and when the laser ranging value is less than the first distance threshold, determines that there is a foreign object close to the distribution overhead line between the first tower and the second tower, and issues an alarm.

10. The method for monitoring foreign matter in overhead power distribution lines according to claim 9, characterized in that: The method further comprises: When the laser ranging value is not less than the first distance threshold, the centralized processor compares the laser ranging value with a second distance threshold; When the laser ranging value is greater than the second distance threshold, the centralized processor determines that the laser ranging element or the laser reflection module is offset too much.

11. The method for monitoring foreign matter in overhead power distribution lines according to claim 10, characterized in that: The method further comprises: The centralized processor sends an alarm message to the user terminal when the laser ranging value is less than the first distance threshold or greater than the second distance threshold.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method for monitoring foreign objects in distribution overhead lines according to claim 9 are implemented.

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