Cable fault location method, device, electronic equipment and storage medium

Abstract

The present invention relates to the technical field of cable fault location, and discloses a cable fault location method, device, electronic device and storage medium, wherein the method comprises: S1, the system background obtains detailed information of the faulty cable, S2, based on the detailed information, the system background starts the fault detection subsystem of the section to which the faulty cable belongs, S3, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the magnitude relationship between the received fault detection signal data and the first preset threshold, S4, the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data. The present invention improves the efficiency of finding cable faults through a cable fault location method.

Description

Technical Field

[0001] The present invention relates to the technical field of cable fault locating, and in particular to a cable fault locating method, device, electronic equipment and storage medium. Background Art

[0002] With the continuous development of social urbanization and power systems, distribution network transmission power lines have gradually changed from overhead lines to underground cables, especially in cities. Underground cables are prone to cable failures due to harsh and complex environments, uneven quality of cable intermediate joints, external force damage, insulation aging and other factors. At the same time, among cable failures, the proportion of cable intermediate joint failures is much greater than the cable section failures between two adjacent cable intermediate heads. After a cable failure occurs, it often takes a lot of manpower and material resources to find the cable fault point, which is time-consuming and difficult, causing troubles to people's normal production and life, and also causing huge losses to power companies.

[0003] The existing underground cable fault location methods basically locate the fault by judging the cable fault type, measuring the cable fault distance, locating the cable path, and accurately locating the cable fault. This method can basically achieve fault location, but it is more labor-intensive and time-consuming. In actual use, it is often difficult to locate the fault due to the complex cable laying environment. When accurately locating, it is necessary to hold a probe and wear headphones to repeatedly detect and monitor, which is time-consuming and labor-intensive, and has high requirements on the experience of the operation and maintenance personnel.

[0004] Therefore, in order to improve the efficiency of finding cable faults and solve the technical problems that the existing underground cable fault locating methods are time-consuming and labor-intensive, it is urgent to construct a cable fault locating method. Summary of the invention

[0005] The present invention provides a cable fault positioning method, device, electronic equipment and storage medium, which solve the technical problems that the existing underground cable fault positioning method is time-consuming and labor-intensive.

[0006] In a first aspect, the present invention provides a method for locating a cable fault, the method being applied to a cable fault locating system; the system comprising a fault detection subsystem and a system background; the method comprising:

[0007] S1, the system background obtains detailed information of the faulty cable;

[0008] S2, based on the detailed information, the system background starts the fault detection subsystem of the section to which the faulty cable belongs;

[0009] S3, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the magnitude relationship between the received fault detection signal data and the first preset threshold;

[0010] S4, the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data.

[0011] Optionally, step S3 includes:

[0012] S31, determining whether there is data greater than the first preset threshold in the received fault detection signal data; if so, executing step S32; if not, executing step S33;

[0013] S32, determining a preliminary fault location of the faulty cable based on the number of data in the received fault detection signal data that is greater than the first preset threshold;

[0014] S33, determining the cable section between two adjacent cable middle heads as the preliminary fault location of the faulty cable.

[0015] Optionally, the step S32 includes:

[0016] S321, when any data in the received fault detection signal data is greater than the first preset threshold, determining the cable middle head corresponding to the any data as the preliminary fault location of the faulty cable;

[0017] S322, when there are multiple groups of data greater than the first preset threshold in the received fault detection signal data, and the difference between the multiple groups of data is not greater than the second preset threshold, execute step S33.

[0018] Optionally, the detailed data includes the numbering information and geographic location information of the cable intermediate head, cable fault distance measurement data, cable path location information and cable fault precise location information; the step S4 includes:

[0019] S41, when it is determined that the cable middle head is the preliminary fault location of the faulty cable, determining the specific fault location of the faulty cable according to the numbering information and geographic positioning information of the cable middle head corresponding to the determined location information of the faulty cable middle head;

[0020] S42, when it is determined that the cable section is the preliminary fault location of the faulty cable, the specific fault location of the faulty cable is determined according to the positioning methods of cable fault ranging, cable path positioning, and cable fault precise positioning, combined with the cable fault ranging data, the cable path positioning information, and the cable fault precise positioning information.

[0021] In a second aspect, the present invention provides a cable fault positioning device, which is applied to a cable fault positioning system; the system includes a fault detection subsystem and a system background; the positioning device includes:

[0022] An acquisition module, used to acquire detailed information of the faulty cable through the system background;

[0023] A starting module, used for starting the fault detection subsystem of the section to which the faulty cable belongs through the system background based on the detailed information;

[0024] A fault module, used for obtaining preliminary fault location information of the faulty cable based on the magnitude relationship between the received fault detection signal data and a first preset threshold value through the fault detection subsystem;

[0025] A positioning module is used for the fault detection subsystem to determine the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data.

[0026] Optionally, the fault module includes:

[0027] A judgment submodule, used to judge whether there is data greater than the first preset threshold value in the received fault detection signal data; if so, execute the first determination submodule; if not, execute the second determination submodule;

[0028] A first determination submodule, configured to determine a preliminary fault position of the faulty cable based on the number of data in the received fault detection signal data that is greater than the first preset threshold;

[0029] The second determination submodule is used to determine the cable section between two adjacent cable middle heads as the preliminary fault location of the faulty cable.

[0030] Optionally, the first determining submodule includes:

[0031] A determination unit, configured to determine that the middle head of the cable corresponding to any data is the preliminary fault position of the faulty cable when any data in the received fault detection signal data is greater than the first preset threshold value;

[0032] The greater than unit is used to execute the second determination unit step when there are multiple groups of data greater than the first preset threshold in the received fault detection signal data, and the difference between the multiple groups of data is not greater than the second preset threshold.

[0033] Optionally, the detailed data includes the numbering information and geographic positioning information of the cable intermediate head, the cable fault distance measurement data, the cable path positioning information and the cable fault precise positioning information; the positioning module includes:

[0034] A first positioning submodule is used to determine the specific fault location of the faulty cable according to the numbering information and geographic positioning information of the cable middle head corresponding to the determined position information of the faulty cable middle head when the cable middle head is determined to be the preliminary fault location of the faulty cable;

[0035] The second positioning submodule is used to determine the specific fault location of the faulty cable based on the positioning methods of cable fault ranging, cable path positioning and cable fault precise positioning, when the cable section is determined to be the preliminary fault location of the faulty cable, in combination with the cable fault ranging data, the cable path positioning information and the cable fault precise positioning information.

[0036] In a third aspect, the present application provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the method provided in the first aspect are performed.

[0037] In a fourth aspect, the present application provides a storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps in the method provided in the first aspect are performed.

[0038] It can be seen from the above technical scheme that the present invention has the following advantages: the present invention provides a method for locating a cable fault, through S1, the system background obtains detailed information of the faulty cable, S2, based on the detailed information, the system background starts the fault detection subsystem of the section to which the faulty cable belongs, S3, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the size relationship between the received fault detection signal data and the first preset threshold, S4, the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data, and through a cable fault locating method, the time-consuming and labor-intensive technical problems of the existing underground cable fault locating methods are solved, and the efficiency of finding cable faults is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] 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.

[0040] Figure 1 A flowchart of a first embodiment of a method for locating a cable fault according to the present invention;

[0041] Figure 2This is a flow chart of a second embodiment of a method for locating a cable fault according to the present invention;

[0042] Figure 3 A structural block diagram of a cable fault location system of the present invention;

[0043] Figure 4 A structural block diagram of a fault detection subsystem in a cable fault location system of the present invention;

[0044] Figure 5 A schematic diagram of the arrangement of a fault detection subsystem in a cable fault location system of the present invention in a cable well;

[0045] Figure 6 The present invention is a structural block diagram of a cable fault locating device embodiment of the present invention. DETAILED DESCRIPTION

[0046] The embodiments of the present invention provide a cable fault positioning method, device, electronic device and storage medium, which are used to solve the technical problem that the existing underground cable fault positioning method is time-consuming and labor-intensive.

[0047] 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.

[0048] For example, see Figure 1 , Figure 1 The present invention is a flow chart of a method for locating a cable fault in Embodiment 1. The method is applied to a cable fault locating system. The system includes a fault detection subsystem and a system background. The method includes:

[0049] Step S101, the system background obtains detailed information of the faulty cable;

[0050] It should be noted that the detailed information of the faulty cable includes the fault type information of the faulty cable, the section information to which the faulty cable belongs, the numbering information and geographic positioning information of the cable middle head, cable fault ranging data, cable path positioning information and cable fault precise positioning information, etc.

[0051] Step S102, based on the detailed information, the system background starts the fault detection subsystem of the section to which the faulty cable belongs;

[0052] Step S103, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the magnitude relationship between the received fault detection signal data and a first preset threshold value;

[0053] Step S104: the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data.

[0054] In a cable fault positioning method provided in an embodiment of the present invention, through step S101, the system background obtains detailed information of the faulty cable, step S102, based on the detailed information, starts the fault detection subsystem of the faulty cable section, step S103, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the size relationship between the received fault detection signal data and the first preset threshold value, step S104, the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data, and through a cable fault positioning method, the technical problems of the existing underground cable fault positioning method being time-consuming and labor-intensive are solved, and the efficiency of finding cable faults is improved.

[0055] For example 2, please refer to Figure 2 , Figure 2 The present invention is a flow chart of a cable fault location method, the method is applied to a cable fault location system; the system includes a fault detection subsystem and a system background; the method includes:

[0056] Step S201, the system background obtains detailed information of the faulty cable;

[0057] In an embodiment of the present invention, the system background obtains detailed information of the faulty cable by using instruments such as a megohmmeter and a multimeter. The detailed information of the faulty cable includes fault type information of the faulty cable, section information of the faulty cable, cable fault ranging information, cable path positioning information, cable fault precise positioning information, etc.

[0058] In the specific implementation, see Figure 3 , Figure 3The present invention is a structural block diagram of a cable fault location system; wherein 301 is a mobile terminal subsystem, 302 is a system background, 303 is a network communication base station subsystem, 304 is a fault detection signal sending subsystem, 305 is a fault detection subsystem, 306 is an application layer, 307 is a monitoring layer, 308 is a network layer, and 309 is a field device layer; the mobile terminal subsystem 301, the system background 302, the network communication base station subsystem 303, the fault detection signal sending subsystem 304 and the fault detection subsystem 305 are interconnected; the application layer 306 includes the mobile terminal subsystem 301, the monitoring layer 307 includes the system background 302, the network layer 308 includes the network communication base station subsystem 303, and the field device layer 309 includes the fault detection signal sending subsystem 304 and the fault detection subsystem 305.

[0059] The mobile terminal subsystem 301 is used to log in to the system backend 302 to perform fault location operations and information viewing, and can extract and set parameters for the fault detection subsystem 305;

[0060] The system backend 302 is used to store and manage the cable middle head data, perform cable middle head fault location, and perform operations such as parameter extraction and setting for the fault detection subsystem 305. The system backend 302 can also realize visualization and transparency of the method and system of the present invention.

[0061] The network communication base station subsystem 303 is used to process and forward network information;

[0062] The fault detection signal sending subsystem 304 is used to send a fault detection signal at the cable terminal according to the instruction of the system background 302 after a cable fault occurs and a power outage occurs;

[0063] The fault detection subsystem 305 is used to detect whether there is a fault in the cable intermediate joint and give an obvious indication.

[0064] The system background 302 of the cable fault location system can be logged in through the mobile terminal subsystem 301, and the fault detection threshold can be broadcasted to the fault detection subsystem 305 at each intermediate joint of the same cable in a communication manner to filter out most of the fault-free cable intermediate joints, thereby reducing the data volume and calculation amount of the system background 302, and greatly reducing the performance requirements and data analysis processing time for the system background 302.

[0065] See also Figure 4 , Figure 4It is a structural block diagram of a fault detection subsystem in a cable fault location system of the present invention; wherein 401 is a main control module, 402 is a communication module, 403 is a power supply module, 404 is a power management module, 405 is a storage module, 406 is an indication module, and 407 is a fault detection signal receiving and conversion module; the main control module 401 is electrically connected to the communication module 402, the power supply module 403, the power management module 404, the storage module 405, the indication module 406, and the fault detection signal receiving and conversion module 407 respectively.

[0066] The main control chip of the main control module 401 is a low-power chip;

[0067] The communication module 402 performs data transmission via wireless communication methods such as 4G, NB-Iot, Lora, and / or optical fiber wired communication methods;

[0068] The power supply module 403 preferably uses induction energy extraction and super capacitor / lithium battery energy storage, which stores energy when the cable is running normally, and is powered by the super capacitor / lithium battery when the cable is shut down for maintenance;

[0069] The power management module 404 uses an analog switch to control the power supply of other modules. At the same time, the main control chip has a low-power standby mode to perform low-power management on the fault detection subsystem 305. The device is usually in a low-power standby state. When cable fault location is required, it can be awakened through a communication command to ensure that the device runs with extremely low power consumption;

[0070] The storage module 405 can use the internal Flash of the main control chip or an external Flash storage chip;

[0071] The indication module 406 uses an LED indicator light or a buzzer to prompt the operation and maintenance personnel;

[0072] The fault detection signal receiving and converting module 407 receives and converts the fault detection signal sent by the fault detection signal sending subsystem 304, converts the fault detection signal into a voltage signal, and uses the voltage signal to perform fault location analysis to obtain the specific location of the cable fault.

[0073] After determining that a certain cable head is faulty and arriving at the site, the system backend 302 can be logged in through the mobile terminal subsystem 301, and a fault indication command can be sent to the fault detection subsystem 305. The fault detection subsystem 305 will give a prompt through the indication module 406 so that the operation and maintenance personnel can quickly identify which cable among the multiple cables in the same cable well is the faulty cable, and can be combined with traditional identification methods to improve safety.

[0074] The fault detection subsystem 305 has an explosion-proof design and a waterproof design to avoid the problem that the cable head explodes or is soaked in water for a long time, which may cause the fault detection subsystem 305 to be damaged.

[0075] In addition to storing common device parameters, the storage module 405 also stores the cable head ID number and geographic positioning information. At the same time, the stored cable head ID number and geographic positioning information can be extracted and set through the mobile terminal subsystem 301; the power management module 404 performs low-power management on the fault detection subsystem 305. The device is usually in a low-power standby state and can be awakened and enter the standby state through communication commands to ensure that the device runs with extremely low power consumption.

[0076] See also Figure 5 , Figure 5 The schematic diagram of the arrangement of the fault detection subsystem in the cable well in the cable fault location system of the present invention is shown in FIG. 501, the cable well, 502, the cable, and 503, the intermediate joint. There may be multiple cables and cable intermediate joints in a cable well 501, and the fault detection subsystem 305 is installed near the intermediate joint 503 of the cable 502 for nearby detection. The cables in each cable section have a unique number, and each cable intermediate joint also has a unique number. The storage module 405 of each fault detection subsystem 305 stores the above two number information. At the same time, the fault detection subsystem 305 stores the above two number information in the system background 302 when it is installed.

[0077] Step S202, based on the detailed information, the system backend 302 starts the fault detection subsystem of the section to which the faulty cable belongs;

[0078] In the embodiment of the present invention, based on the detailed information, the system background 302 starts the fault detection subsystem of the section to which the faulty cable belongs.

[0079] In a specific implementation, based on the detailed information of the faulty cable, the system background 302 starts all fault detection subsystems 305 in the faulty cable section according to the section number of the faulty cable, and sets corresponding parameters.

[0080] Step S203, the fault detection subsystem 305 determines whether there is data greater than the first preset threshold in the received fault detection signal data; if so, execute step S204; if not, execute step S205;

[0081] In the embodiment of the present invention, it is determined whether there is data greater than the first preset threshold in the received fault detection signal data.

[0082] In a specific implementation, according to the fault type information, the fault detection signal sending subsystem 304 is used at one end of the cable to send a corresponding signal, and the system background 302 broadcasts a detection start command to the fault detection subsystem 305. After a period of signal collection and processing and analysis, the fault detection subsystem 305 that exceeds the set threshold actively uploads the detection data to the system background 302, and the system background 302 automatically sorts the data from large to small. At the same time, the communication between the system background 302 and the fault detection subsystem 305 has a communication anti-collision mechanism.

[0083] Step S204, when any data in the received fault detection signal data is greater than the first preset threshold, determining the cable middle head corresponding to the any data as the preliminary fault position of the faulty cable;

[0084] In an embodiment of the present invention, when any data in the received fault detection signal data is greater than the first preset threshold, the cable middle head corresponding to the any data is determined as the preliminary fault position of the faulty cable.

[0085] In a specific implementation, if there is data exceeding a first preset threshold, the middle head of the cable is preliminarily determined to be the fault location;

[0086] Step S205 , when there are multiple groups of data greater than the first preset threshold in the received fault detection signal data, and the difference between the multiple groups of data is not greater than the second preset threshold, execute step S206 .

[0087] Step S206, the fault detection subsystem 305 determines the cable section between two adjacent cable middle heads as the preliminary fault location of the faulty cable;

[0088] In an embodiment of the present invention, when there is no data greater than the first preset threshold in the received fault detection signal data, or when there are multiple groups of data greater than the first preset threshold in the received fault detection signal data, and the difference between the multiple groups of data is not greater than the second preset threshold, the cable section between two adjacent cable middle heads is determined as the preliminary fault location of the faulty cable.

[0089] In a specific implementation, if there is no data exceeding the first preset threshold, or the difference between multiple groups of data exceeding the first preset threshold is not greater than the second preset threshold, the cable section between two adjacent cable intermediate heads is preliminarily determined to be the fault location.

[0090] Step S207, when the cable middle head is determined to be the preliminary fault location of the faulty cable, the fault detection subsystem 305 determines the specific fault location of the faulty cable according to the cable middle head number information and geographic location information corresponding to the determined faulty cable middle head location information;

[0091] In the embodiment of the present invention, when a cable middle head fault is determined, the specific fault location of the faulty cable is determined based on the cable middle head number and geographic positioning information of the cable middle head with the strongest fault detection signal.

[0092] Step S208, when the cable section is determined to be the preliminary fault location of the faulty cable, the fault detection subsystem 305 determines the specific fault location of the faulty cable according to the positioning methods of cable fault ranging, cable path positioning, and cable fault precise positioning, in combination with the cable fault ranging data, the cable path positioning information, and the cable fault precise positioning information;

[0093] In the embodiment of the present invention, when a cable section fault between two adjacent cable middle heads is determined, the fault is located in a traditional manner according to cable fault distance measurement data, cable path positioning information, and cable fault precise positioning information.

[0094] When the staff arrives at the cable fault point where the fault detection signal is the strongest (the signal data is the largest), they log in to the system background 302 through the mobile terminal subsystem 301, and send a fault indication command to the corresponding fault detection subsystem 305 according to the cable section and the cable middle head number. The fault detection subsystem 305 prompts through the indication module 406 so that the operation and maintenance personnel can quickly identify which cable among the multiple cables in the same cable well is the faulty cable.

[0095] At the same time, in order to improve accuracy and safety, after using this system to determine that a certain cable intermediate joint has a fault, it can be combined with an existing commonly used cable fault precise locator for confirmation.

[0096] In a cable fault positioning method provided in an embodiment of the present invention, through S1, the system background obtains detailed information of the faulty cable, S2, based on the detailed information, the system background starts the fault detection subsystem of the section to which the faulty cable belongs, S3, the system background sorts the fault detection signal data received by the fault detection subsystem from large to small to obtain the sorted signal data, S4, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the size relationship between the received fault detection signal data and a first preset threshold, S5, the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data, and through a cable fault positioning method, the technical problems of the existing underground cable fault positioning method being time-consuming and labor-intensive are solved, and the efficiency of finding cable faults is improved.

[0097] See also Figure 6 , Figure 6 This is a structural block diagram of an embodiment of a cable fault locating device of the present invention, wherein the locating device is applied to a cable fault locating system; the system includes a fault detection subsystem and a system background; the locating device includes:

[0098] An acquisition module 601 is used to acquire detailed information of a faulty cable through the system background;

[0099] A starting module 602 is used to start the fault detection subsystem of the section to which the faulty cable belongs through the system background based on the detailed information;

[0100] A fault module 603, configured to obtain preliminary fault location information of the faulty cable based on a magnitude relationship between the received fault detection signal data and a first preset threshold value through the fault detection subsystem;

[0101] The positioning module 604 is used for the fault detection subsystem to determine the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data.

[0102] In an optional embodiment, the fault module 603 includes:

[0103] A judgment submodule, used to judge whether there is data greater than the first preset threshold value in the received fault detection signal data; if so, execute the first determination submodule; if not, execute the second determination submodule;

[0104] A first determination submodule, configured to determine a preliminary fault position of the faulty cable based on the number of data in the received fault detection signal data that is greater than the first preset threshold;

[0105] The second determination submodule is used to determine the cable section between two adjacent cable middle heads as the preliminary fault location of the faulty cable.

[0106] In an optional embodiment, the first determining submodule includes:

[0107] A determination unit, configured to determine that the middle head of the cable corresponding to any data is the preliminary fault position of the faulty cable when any data in the received fault detection signal data is greater than the first preset threshold value;

[0108] The greater than unit is used to execute the second determination unit step when there are multiple groups of data greater than the first preset threshold in the received fault detection signal data, and the difference between the multiple groups of data is not greater than the second preset threshold.

[0109] In an optional embodiment, the detailed data includes the numbering information and geographic positioning information of the cable intermediate head, the cable fault distance measurement data, the cable path positioning information and the cable fault precise positioning information; the positioning module 604 includes:

[0110] A first positioning submodule is used to determine the specific fault location of the faulty cable according to the numbering information and geographic positioning information of the cable middle head corresponding to the determined position information of the faulty cable middle head when the cable middle head is determined to be the preliminary fault location of the faulty cable;

[0111] The second positioning submodule is used to determine the specific fault location of the faulty cable based on the positioning methods of cable fault ranging, cable path positioning and cable fault precise positioning, when the cable section is determined to be the preliminary fault location of the faulty cable, in combination with the cable fault ranging data, the cable path positioning information and the cable fault precise positioning information.

[0112] An embodiment of the present invention further provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the cable fault locating method as described in any of the above embodiments.

[0113] An embodiment of the present invention further provides a computer storage medium on which a computer program is stored. When the computer program is executed by the processor, the method for locating a cable fault as described in any of the above embodiments is implemented.

[0114] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0115] In the several embodiments provided in the present application, it should be understood that the methods, devices, electronic devices and storage media disclosed in the present invention can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0116] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] 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.

[0118] 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 readable 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 readable 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.

[0119] 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 method for locating a cable fault, characterized in that: The method is applied to a cable fault location system; the system includes a fault detection subsystem and a system background; the method includes: S1, the system background obtains detailed information of the faulty cable; the detailed information of the faulty cable includes fault type information of the faulty cable, section information of the faulty cable, number information and geographic location information of the cable middle head, cable fault distance measurement data, cable path location information and cable fault precise location information; S2, based on the detailed information, the system background starts the fault detection subsystem of the section to which the faulty cable belongs; S3, the fault detection subsystem obtains preliminary fault location information of the faulty cable based on the magnitude relationship between the received fault detection signal data and the first preset threshold; S4, the fault detection subsystem determines the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data; The step S3 comprises: S31, determining whether there is data greater than the first preset threshold in the received fault detection signal data; if so, executing step S32; if not, executing step S33; S32, determining a preliminary fault location of the faulty cable based on the number of data in the received fault detection signal data that is greater than the first preset threshold; S33, determining a cable section between two adjacent cable middle heads as a preliminary fault location of the faulty cable; The step S32 comprises: S321, when any data in the received fault detection signal data is greater than the first preset threshold, determining the cable middle head corresponding to the any data as the preliminary fault location of the faulty cable; S322, when there are multiple groups of data greater than the first preset threshold value in the received fault detection signal data, and the difference between the multiple groups of data is not greater than the second preset threshold value, executing step S33; The step S4 comprises: S41, when it is determined that the cable middle head is the preliminary fault location of the faulty cable, determining the specific fault location of the faulty cable according to the numbering information and geographic positioning information of the cable middle head corresponding to the determined location information of the faulty cable middle head; S42, when it is determined that the cable section is the preliminary fault location of the faulty cable, the specific fault location of the faulty cable is determined according to the positioning methods of cable fault ranging, cable path positioning, and cable fault precise positioning, combined with the cable fault ranging data, the cable path positioning information, and the cable fault precise positioning information.

2. A cable fault location device, characterized in that: The positioning device is applied to a cable fault positioning system; the system comprises a fault detection subsystem and a system background; The positioning device comprises: An acquisition module is used to acquire detailed information of the faulty cable through the system background; the detailed information of the faulty cable includes fault type information of the faulty cable, section information of the faulty cable, number information and geographic location information of the cable middle head, cable fault distance measurement data, cable path location information and cable fault precise location information; A starting module, used for starting the fault detection subsystem of the section to which the faulty cable belongs through the system background based on the detailed information; A fault module, used for obtaining preliminary fault location information of the faulty cable based on the magnitude relationship between the received fault detection signal data and a first preset threshold value through the fault detection subsystem; A positioning module, used by the fault detection subsystem to determine the specific fault location of the faulty cable according to the preliminary fault location information and the detailed data; The fault module comprises: A judgment submodule, used to judge whether there is data greater than the first preset threshold value in the received fault detection signal data; if so, execute the first determination submodule; if not, execute the second determination submodule; A first determination submodule, configured to determine a preliminary fault position of the faulty cable based on the number of data in the received fault detection signal data that is greater than the first preset threshold; A second determination submodule is used to determine that the cable section between two adjacent cable middle heads is the preliminary fault position of the faulty cable; The first determining submodule includes: A determination unit, configured to determine that the middle head of the cable corresponding to any data is the preliminary fault position of the faulty cable when any data in the received fault detection signal data is greater than the first preset threshold value; A greater than unit, configured to execute a second determination unit step when there are multiple groups of data greater than the first preset threshold value in the received fault detection signal data, and the difference between the multiple groups of data is not greater than a second preset threshold value; The positioning module comprises: A first positioning submodule is used to determine the specific fault location of the faulty cable according to the numbering information and geographic positioning information of the cable middle head corresponding to the determined position information of the faulty cable middle head when the cable middle head is determined to be the preliminary fault location of the faulty cable; The second positioning submodule is used to determine the specific fault location of the faulty cable based on the positioning methods of cable fault ranging, cable path positioning and cable fault precise positioning, when the cable section is determined to be the preliminary fault location of the faulty cable, in combination with the cable fault ranging data, the cable path positioning information and the cable fault precise positioning information.

3. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the method according to claim 1 is executed.

4. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to claim 1 is performed.

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