CN114137441A - Method, device, equipment and storage medium for detecting power line - Google Patents
Method, device, equipment and storage medium for detecting power line Download PDFInfo
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- CN114137441A CN114137441A CN202111439721.9A CN202111439721A CN114137441A CN 114137441 A CN114137441 A CN 114137441A CN 202111439721 A CN202111439721 A CN 202111439721A CN 114137441 A CN114137441 A CN 114137441A
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- 238000013024 troubleshooting Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
Abstract
The application discloses a method, a device, equipment and a storage medium for power line detection, wherein the method is applied to a fault patrol terminal, the fault patrol terminal is connected with detection clamp equipment, and the method comprises the following steps: acquiring a first line parameter of a first detection line and a second line parameter of a second detection line, and determining a line parameter threshold value based on the first line parameter and/or the second line parameter, wherein the first detection line and the second detection line are lines positioned on two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line; receiving a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, which are sent by the detection clamp device; and respectively judging whether the first detection circuit and the second detection circuit have faults or not according to the line parameter threshold, the first current value and the second current value, so that the fault detection precision and efficiency are improved.
Description
Technical Field
The present application relates to the field of power grid data processing technologies, and in particular, to a power line detection method, a power line detection apparatus, an electronic device, and a computer-readable storage medium.
Background
When a line fails, the conventional method for finding the fault is as follows: and (4) disconnecting a section switch or a branch switch of the line, and detecting by sections by using a megger to judge the fault range. If a certain section of circuit is long and has no switch (disconnecting link), and the section can not be segmented, the pole needs to be kicked, the jumper wire of the loading-resistant pole (tower) is untied for section detection, and the jumper wire needs to be connected after the detection is finished. The fault range can be judged by stepping on the rod at multiple points, releasing and connecting jumper wires and carrying out sectional detection for multiple times. The traditional method is time-consuming, labor-consuming, low in efficiency and increases operation risks.
Disclosure of Invention
The application provides a method, a device, equipment and a storage medium for detecting a power line, which are used for solving the problems that time and labor are wasted, the efficiency is low, the operation risk is increased and the like caused by the fact that a plurality of points are required to pedal rods when line fault detection is carried out in the prior art.
In a first aspect, an embodiment of the present application provides a method for power line detection, where the method is applied to a fault patrol terminal, and the fault patrol terminal establishes a connection with a detection clamp device, and the method includes:
acquiring a first line parameter of a first detection line and a second line parameter of a second detection line, and determining a line parameter threshold value based on the first line parameter and/or the second line parameter, wherein the first detection line and the second detection line are lines positioned on two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line;
receiving a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, which are sent by the detection clamp device;
and respectively judging whether the first detection circuit and the second detection circuit have faults or not according to the line parameter threshold, the first current value and the second current value.
In a second aspect, an embodiment of the present application further provides a device for power line detection, where the device is applied to a fault patrol terminal, the fault patrol terminal establishes a connection with a detection clamp device, and the device includes:
the line parameter acquisition module is used for acquiring a first line parameter of a first detection line and a second line parameter of a second detection line, wherein the first detection line and the second detection line are lines which are positioned at two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line;
a line parameter threshold determination module for determining a line parameter threshold based on the first line parameter and/or the second line parameter;
the current value receiving module is used for receiving a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, which are sent by the detection clamp device;
and the fault detection module is used for respectively judging whether the first detection circuit and the second detection circuit have faults or not according to the line parameter threshold value, the first current value and the second current value.
In a third aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of the first aspect described above.
In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the method of the first aspect.
In a fifth aspect, the present application further provides a computer program product, which includes computer-executable instructions, and when executed, the computer-executable instructions are configured to implement the method of the first aspect.
The technical scheme that this application provided has following beneficial effect:
in this embodiment, when performing line fault detection, the current difference may be caused by physical differences of the lines in addition to the line fault, so that a line parameter threshold determined based on line parameters is introduced in the fault detection process, and the current difference caused by the actual physical differences of the lines is considered, so that compared with directly comparing the first current value with the second current value, the fault detection accuracy can be improved.
Meanwhile, the method of the embodiment is adopted to detect the fault of the power line, the multi-point pole pedaling is not needed manually, and the fault detection efficiency and safety are improved.
Drawings
FIG. 1 is a schematic diagram of a connection between a trouble-shooting terminal and a detection clamp device provided by the present application;
FIG. 2 is a schematic diagram of overhead line fault detection provided herein in connection with a troubleshooting terminal and a detection clamp device;
FIG. 3 is a flowchart of an embodiment of a method for power line detection according to an embodiment of the present disclosure;
fig. 4 is a flowchart of an embodiment of a method for power line detection according to a second embodiment of the present disclosure;
fig. 5 is a schematic view illustrating a hitch point and a detection circuit according to a second embodiment of the present disclosure;
fig. 6 is a schematic diagram of a fault notification provided in the second embodiment of the present application;
fig. 7 is a block diagram of an embodiment of an apparatus for power line detection according to a third embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures.
The embodiment of the application provides a method for detecting a power line, which can be applied to a fault patrol terminal, and as shown in fig. 1, the fault patrol terminal can be connected with detection clamp equipment. The terminal for inspecting faults and the detection clamp device may be in wireless communication or wired communication, which is not limited in this embodiment. Through the use of the matched detection clamp equipment, the fault inspection terminal can accurately find the hidden ground faults of the overhead line, such as single-phase metallic grounding, grounding through an electric arc, grounding through a transition resistor, porcelain insulator breakdown, lightning arrester breakdown and the like, and is particularly suitable for the fault line with a cable branch. Furthermore, the short-circuit capability of the fault inspection terminal is strong, and the direct short-circuit fault with the grounding resistance of 0 omega can be detected.
Specifically, the fault patrol terminal can perform ground fault location of a plurality of lines. After the overhead line is shut down, the test is performed section by section from one end of the line, a low-frequency high-voltage signal is applied to the line by a detection clamp device, currents on the left side and the right side are detected, and the directions of the ground fault point are displayed on a host machine by analyzing the pulse currents on the left side and the right side and the impedance (for example, the directions on the left side and the right side are represented by a yellow direction and a red direction). The detection clamp equipment is provided with corresponding detection ends, such as a yellow end corresponding to a yellow direction and a red end corresponding to a red direction, and the detection clamp equipment is tested section by section along the direction indicated by the fault point, before the fault point, the test result shows that the fault point is behind the fault point, after the fault point, the detection result shows that the fault point is in front of the fault point, so that the fault point is approached section by section, and the fault position is determined.
The fault patrol terminal comprises a display screen (for example, a 7-inch color screen), the clapping direction can be displayed on the display screen, the fault direction is clear, and the test result is clear at a glance. Besides, the fault patrol terminal can also have a voice broadcasting function, and voice prompts of the fault direction of the line, so that field operation is easier.
The detection clamp equipment integrates signal emission and collection, is of a clamp-shaped structure, is small in size, light in weight and convenient to hang, can finish circuit fault finding by hanging once, does not need to divide two places to carry out output signal and signal collection operation, is convenient and quick to test, reduces the number of operating personnel, greatly lightens the working strength of the test and improves the working efficiency. Meanwhile, the detection clamp equipment is provided with a non-contact electroscope, so that whether the cable is electrified or not can be detected, and acousto-optic alarm is given out, so that the safety of operators and equipment is ensured.
In a scene, the detection pincers equipment can be collocated the insulator spindle and use, and this insulator spindle can be scalable insulator spindle, with the insulator spindle with detect after pincers equipment is connected, the staff can use the insulator spindle will detect pincers equipment articulate on overhead line. When the test clamp equipment is hung on an overhead line, the hanging in place and the jaw closing are ensured.
The fault patrol terminal also has a Bluetooth communication function, and can test, check test results and look up historical records on the mobile phone after downloading the APP.
The fault patrol terminal and the detection clamp device are provided with high-capacity rechargeable batteries, and the patrol work of the whole line can be completed after the fault patrol terminal and the detection clamp device are fully charged.
When the power line is detected, after the overhead line is shut down, a fault inspection terminal outputs low-frequency high-voltage signals to the detection clamp equipment, alternating-current voltage signals are respectively applied to the line through the emission clamps on the left side and the right side of the detection clamp equipment, and the current amplitudes and phases on the two sides are detected by the high-sensitivity current transformers in the middle of the detection clamp equipment. The current flows through the fault patrol terminal and the detection clamp equipment, flows through a fault line, enters the ground at a ground fault point and returns to the fault patrol terminal through a grounding pin.
The fault patrol terminal outputs a high-voltage alternating-current signal, the distributed capacitor and the fault grounding resistor form an RC parallel circuit, the current load is judged to be a capacitive load or an inductive load by detecting the voltage and current signals at two sides of the circuit and the phase between the voltage and the current, and the magnitude of the pure resistive impedance at the left side and the right side is compared, so that the fact that a grounding fault point is located at the left side or the right side is determined.
At every hanging point, the fault inspection terminal applys the high pressure, through detecting the pincers equipment from current transformer both sides, applys alternating current signal in turn, and current transformer gathers high pressure and current signal simultaneously, detects the pincers equipment and gathers the back of accomplishing, carries out Fourier transform to data and calculates required data, sends for fault inspection terminal through wireless communication and carries out the fault diagnosis processing, and then judges the fault direction.
The detection clamp equipment is hung on the line section by section along the line, a fault point is indicated to be positioned at the rear part at a certain point, the fault point is displayed to be positioned at the front part at the next hanging point, and therefore the fault point can be judged to be positioned between the two test points, and the 1/2 method is adopted for subsection test, so that the fault point is gradually approached.
The working principle of the combination of the fault patrol terminal and the detection clamp device for detecting the faults of the overhead line is described in the following with reference to fig. 2:
in fig. 2, a clamp meter D (i.e., a detection clamp device) is hooked to an overhead line to detect a fault condition of the line on both left and right sides of a hook point C. The metal contact pieces (U1 and U2) on both sides of the clamp meter D contact the conducting wires simultaneously, the change-over switch Z can change over the voltage U of the detection power supply T between U1 and U2, currents I1 and I2 are generated on both sides of a hanging point C, the clamp meter D measures the values of I1 and I2 respectively and transmits the values to a wireless terminal W (namely a fault patrol terminal), and the fault patrol terminal W can judge the range and the direction of the fault according to the values of I1 and I2. When the grounding E1 occurs on the side A, a fault loop is formed by the A-E1-E-C-A, the resistance R1 of the fault loop is obviously smaller than the B-side line resistance R2 without the fault (theoretically, the side B is suspended, and R2 is infinite), and then I1 is larger than I2, so that the fault can be judged to be on the side A.
However, in the actual operation process, it is found that there may be no failure on either side a or B when I1> I2 occurs. This is because even if the line has no fault, the parameters (length, impedance, insulation, etc.) of the line on both sides of the hanging point C cannot be completely the same, which causes a difference in the current value on both sides of the detection point. In order to more accurately identify the line fault, in the embodiment of the present application, when identifying the fault, a factor that line parameters on both sides of a hitching point are different is considered, as described in the following embodiments.
Example one
Fig. 3 is a flowchart of an embodiment of a method for detecting a power line, which may be applied to a fault patrol terminal, and includes the following steps:
The first detection line and the second detection line are lines which are positioned on two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line. For example, as shown in fig. 2, the hitching point C divides the suspected faulty power line into: the a detection line on the left side of the hang-up point C and the B detection line on the right side of the hang-up point C. The hitching point may be a point randomly selected by an operator on the suspected faulty power line, or may be a central point of the suspected faulty power line, which is not limited in this embodiment.
Illustratively, the line parameters (including the first line parameter and the second line parameter) may include, but are not limited to: line length, applied voltage, etc. Wherein the first detection line and the second detection line are parallel lines, and the applied voltages of the first detection line and the second detection line are the same.
In one implementation, the first line parameter and/or the second line parameter may be looked up in a pre-configured parameter configuration table, so as to obtain a matching record matching with the first line parameter and/or the second line parameter, and a line parameter threshold value is extracted from the matching record. The term "and/or" means that the line parameter threshold may be matched according to the first line parameter, the line parameter threshold may be matched according to the second line parameter, and the final line parameter threshold may be obtained by combining the line parameter threshold matched according to the first line parameter and the line parameter threshold matched according to the first line parameter.
Illustratively, the line parameter threshold may comprise an impedance threshold at which an impedance threshold is obtained from an applied voltage of the first line parameter or the second line parameter by looking up in a parameter configuration table.
And 320, receiving a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, which are sent by the detection clamp device.
In implementation, the trouble shooting terminal transmits to the detection clamp device applied voltage information including an applied voltage value. After receiving the applied voltage information, the detection clamp device applies corresponding alternating voltage signals to the suspected fault power line through the left and right emission clamps respectively. And then, detecting current amplitudes at two sides by a high-sensitivity current transformer in the middle of the detection clamp device to obtain a first current value and a second current value. After the detection clamp device obtains the first current value and the second current value, the first current value and the second current value can be transmitted to the fault patrol terminal.
The applied voltage information sent by the fault inspection terminal to the detection clamp device can be determined according to the following modes: the fault patrol terminal is provided with a main interface menu key, when a user clicks the main interface menu key, the user enters a menu option page, and a selectable voltage list can be displayed on the menu option page, for example, the selectable voltage can include 3000V, 8000V and the like. The user can select the voltage value to be finally applied by means of physical buttons on the terminal, up, down, left and right, or virtual buttons on the page, or a touch screen. When the trouble-shooting terminal detects the voltage value selected by the user, the voltage value is used as the applied voltage information.
After the line parameter threshold is obtained, it can be determined whether the first detection line and the second detection line have a fault by combining the line parameter threshold, the first current value and the second current value. When the line fault is detected, the current difference is caused by the physical difference of the line besides the line fault, so that a line parameter threshold value determined based on line parameters is introduced in the fault detection process, the current difference caused by the actual physical difference of the line is considered, and compared with the method of directly comparing the first current value with the second current value, the fault detection precision can be improved.
Meanwhile, the method of the embodiment is adopted to detect the fault of the power line, the multi-point pole pedaling is not needed, and the fault detection efficiency and safety are improved.
Example two
Fig. 4 is a flowchart of an embodiment of a method for detecting a power line, which may be applied to a fault patrol terminal according to a second embodiment of the present disclosure, where the embodiment is described on the basis of the first embodiment, and in the embodiment, the description takes a line parameter threshold as an impedance threshold as an example, and may include the following steps:
The first detection line and the second detection line are lines which are positioned on two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line.
In one embodiment, the first line parameter may include a first applied voltage, and the second line parameter may include a second applied voltage; the step of determining the impedance threshold based on the first line parameter and/or the second line parameter may further include the steps of:
respectively searching the first applied voltage and the second applied voltage in a preset configuration table to obtain a first impedance threshold value matched with the first applied voltage and a second impedance threshold value matched with the second applied voltage; determining a final impedance threshold based on the first impedance threshold and the second impedance threshold.
Specifically, the configuration table may be a data table pre-imported by a manager or a developer according to actual experience, and the data table may record impedance thresholds corresponding to different applied voltage values. By looking up the first applied voltage and the second applied voltage in the configuration table, respectively, a first impedance threshold value matching the first applied voltage and a second impedance threshold value matching the second applied voltage can be obtained.
After the first impedance threshold and the second impedance threshold are obtained, in one embodiment, an average of the two may be calculated as a final impedance threshold. In practice, the first detection line and the second detection line are parallel circuits, so that the first applied voltage and the second applied voltage are the same, and when the configuration table is searched, the first impedance threshold and the second impedance threshold searched according to the first applied voltage and the second applied voltage are the same.
In other embodiments, the impedance threshold obtained by matching the first applied voltage may be directly used as the final impedance threshold, or the second impedance threshold obtained by matching the second applied voltage may be directly used as the final impedance threshold, which is not limited in this embodiment.
Where the impedance threshold may be a range of normal impedances measured when the line is not faulted.
In one implementation, after the impedance threshold is obtained, the ratio of the applied voltage to the impedance threshold may be determined as the current threshold.
Step 440, if both the first current value and the second current value are less than or equal to the current threshold, it is determined that neither the first detection line nor the second detection line has a fault.
If the first current value is I1 and the second current value is I2, the first current value and the second current value are respectively compared with a current threshold value K, and if I1 and I2 are both less than or equal to K, the resistance of the two detection lines is relatively large, namely, the two detection lines are not grounded, next detection is not needed, and the first detection line and the second detection line which are positioned on two sides of the hanging point are directly judged to have no fault.
In this step, if I1> K, and I2< ═ K, it can be directly judged that the second detection line has not failed according to the reason of step 440.
Further judgment is needed for the first detection line. First, whether the difference between the first current value and the second current value is large or small is judged, a first ratio N of the first current value and the second current value can be calculated during implementation, if N is larger than or equal to a certain value (namely, a first set value), it indicates that the difference between the first current value and the second current value is relatively large, and the difference caused by the physical difference of the lines is relatively small, and at this time, it can be judged that the first detection line has a fault. On the contrary, if N is smaller than a certain value (i.e., the first set value), it indicates that the difference between the first current value and the second current value is relatively small, and it may be preliminarily determined that the current difference is caused by the physical difference of the lines, that is, it is determined that the first detection line has not failed. For example, if the range of the first set value is [ 10, ∞ ], if N is smaller than the range of the value (N <10), it is determined that neither the first detection line nor the second detection line located on both sides of the hitch point has a fault.
In step 480, if the first current value and the second current value are both greater than the current threshold, a second ratio of the first current value to the current threshold and a third ratio of the second current value to the current threshold are calculated.
In this step, if both I1 and I2 are greater than K, it indicates that the resistances of both the detection lines are small, and both the detection lines are suspected of being grounded, but it is not excluded that the detection lines are caused by physical parameters of the lines, and therefore further judgment is required. In a further decision, the difference between I1, I2 and the current threshold K is first determined, which may be denoted as I1/K (i.e., the second ratio M1), I2/K (i.e., the third ratio M2), respectively.
In this step, if M1 and M2 are both greater than the set range value (e.g., 10-100), indicating that I1 and I2 deviate from the current threshold K by a large amount, and the current threshold is the current value when the line is not faulty, and therefore, when I1 and I2 deviate from the current threshold K by a large amount, indicating that the resistances of the first detection line and the second detection line are both small, it can be determined that the ground fault occurs in both the first detection line and the second detection line.
If both M1 and M2 are smaller than the set range value (e.g., 10-100), indicating that I1 and I2 are close to the current threshold K, which is the current value indicating that the line is not faulty, it can be determined that neither the first nor the second detection line has a ground fault.
If both M1 and M2 are greater than the set range value (e.g., 10-100), then it may be determined that the first test line is faulty and the second test line is not faulty.
In order to make the present embodiment more understandable to those skilled in the art, several examples are listed for illustration according to the judgment logic described in the above step 440 to step 470, as shown in the following table 1:
TABLE 1
It should be noted that, in the process of detecting the fault of the first detection line and the second detection line in the above step 430 to step 4111, the comparison between the first current value, the second current value and the current threshold is adopted to implement the fault detection. In other embodiments, the fault detection of the first detection line and the second detection line may be implemented based on a comparison of impedances, and in such an implementation, the impedance threshold value is not required to be converted into the current threshold value, but the first current value is converted into the first impedance value and the second current value is converted into the second impedance value. The first impedance value, the second impedance value, and the impedance threshold are then compared.
In implementation, the troubleshooting terminal may display the hooking point, the first detection line and the second detection line on both sides of the hooking point through a display screen, as shown in fig. 5, and may display the hooking point C, the a detection line on the left side of the hooking point C and the B detection line on the right side of the hooking point C, which are divided by the hooking point C, in the display screen.
When a ground fault of a detection line is detected, an alarm prompt may be performed on the detection line with the fault, and the alarm prompt may include at least one of the following, for example:
1. and displaying a fault indication arrow in a specified position of the first detection line and/or the second detection line with the fault. For example, if B detects a ground fault in a line, as shown in fig. 6, a fault display arrow may be displayed below the line to indicate that a ground fault has occurred in the line.
2. And highlighting the first detection line and/or the second detection line which has the fault. For example, in fig. 5, if a B detection line has a ground fault, the line may be highlighted by color filling, for example, the line is represented by red.
3. And sending out voice prompt aiming at the first detection line and/or the second detection line which are in failure. In order to assist in reminding the fault condition of the subscriber line, voice reminding can be performed in a voice broadcasting mode.
In this embodiment, a detection point is selected as a hook point on a failed line with power failure, and detection clamp equipment is hooked on the hook point, the detection clamp equipment inputs an alternating voltage at the hook point, detects current values on the left side and the right side of the hook point, combines an impedance threshold determined according to line parameters, determines a current threshold according to the impedance threshold, and determines that the lines on the two sides have no ground fault when the current values on the two sides are smaller than the current threshold. If the current value on one side is larger than the current threshold value, and the current value on the other side is smaller than the current threshold value, calculating the ratio of the current value larger than the current threshold value to the current value smaller than the current threshold value, if the ratio is smaller than a set value, judging that no fault exists in the lines on the two sides, and otherwise, judging that the line corresponding to the current value larger than the current threshold value has a fault. If the current values on the two sides are larger than the current threshold value, the difference between the current value and the current threshold value is determined by comparing the ratio of the current value to the current threshold value, and therefore whether the line breaks down or not is judged. By the method, the problem of fault misjudgment caused by inconsistent current values due to the difference of the physical parameters of the lines can be avoided, and the identification accuracy of the ground fault is improved.
EXAMPLE III
Fig. 7 is a block diagram of an embodiment of an apparatus for power line detection according to a third embodiment of the present disclosure, where the apparatus may be applied to a fault patrol terminal, and the fault patrol terminal is connected to a detection clamp device, where the apparatus may include the following modules:
a line parameter obtaining module 710, configured to obtain a first line parameter of a first detection line and a second line parameter of a second detection line, where the first detection line and the second detection line are lines located on two sides of a hooking point when the detection clamp device is hooked on a suspected faulty power line;
a line parameter threshold determination module 720, configured to determine a line parameter threshold based on the first line parameter and/or the second line parameter;
a current value receiving module 730, configured to receive a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, where the first current value is sent by the detection clamp device;
and a fault detection module 740, configured to respectively determine whether the first detection line and the second detection line have a fault according to the line parameter threshold, the first current value, and the second current value.
In one embodiment, the line parameter threshold comprises an impedance threshold; the fault detection module 740 is specifically configured to:
determining a current threshold based on the impedance threshold;
comparing the first and second current values to the current threshold values, respectively;
and if the first current value and the second current value are both smaller than or equal to the current threshold value, determining that neither the first detection line nor the second detection line has faults.
In one embodiment, the failure detection module 740 is further configured to:
if the first current value is larger than the current threshold value but the second current value is smaller than or equal to the current threshold value, calculating a first ratio of the first current value to the second current value;
if the first ratio is larger than or equal to a first set value, judging that the first detection line has a fault, and judging that the second detection line has no fault;
and if the first ratio is smaller than a first set value, judging that neither the first detection line nor the second detection line has faults.
In one embodiment, the failure detection module 740 is further configured to:
if the first current value and the second current value are both larger than the current threshold, calculating a second ratio of the first current value to the current threshold and a third ratio of the second current value to the current threshold;
if the second ratio and the third ratio are both larger than a preset range value, determining that both the first detection circuit and the second detection circuit have faults;
if the second ratio is larger than a preset range value and the third ratio is smaller than the preset range value, judging that the first detection line has a fault, and judging that the second detection line has no fault;
and if the second ratio and the third ratio are both smaller than a preset range value, determining that neither the first detection circuit nor the second detection circuit has a fault.
In one embodiment, the first line parameter comprises a first applied voltage and the second line parameter comprises a second applied voltage; the line parameter threshold determining module 720 is specifically configured to:
respectively searching the first applied voltage and the second applied voltage in a preset configuration table to obtain a first line parameter threshold value matched with the first applied voltage and a second line parameter threshold value matched with the second applied voltage;
determining a final line parameter threshold based on the first line parameter threshold and/or the second line parameter threshold.
In one embodiment, the apparatus may further include the following modules:
the display module is used for displaying the hanging point, the first detection line and the second detection line which are positioned on two sides of the hanging point through a display device of the fault inspection terminal;
and the alarm prompt module is used for carrying out alarm prompt on the first detection line and/or the second detection line which have faults.
In an embodiment, the alert module is specifically configured to:
displaying a fault indication arrow in a specified position of the first detection line and/or the second detection line in which the fault occurs;
highlighting the first detection line and/or the second detection line which have faults;
and sending out voice prompt aiming at the first detection line and/or the second detection line which are in failure.
The device for detecting the power line, provided by the embodiment of the application, can execute the method for detecting the power line in the first embodiment and the second embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 8 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present disclosure, as shown in fig. 8, the electronic device includes a processor 810, a memory 820, an input device 830, and an output device 840; the number of the processors 810 in the electronic device may be one or more, and one processor 810 is taken as an example in fig. 8; the processor 810, the memory 820, the input device 830 and the output device 840 in the electronic apparatus may be connected by a bus or other means, and the connection by the bus is exemplified in fig. 8.
The memory 820 is a computer-readable storage medium for storing software programs, computer-executable programs, and modules, such as the corresponding program instructions/modules in the first embodiment and the second embodiment of the present application. The processor 810 executes various functional applications and data processing of the electronic device by executing software programs, instructions and modules stored in the memory 820, namely, the method mentioned in the first and second embodiments of the method is implemented.
The memory 820 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the memory 820 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the memory 820 may further include memory located remotely from the processor 810, which may be connected to a device/terminal/server through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 830 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic apparatus. The output device 840 may include a display device such as a display screen.
EXAMPLE five
The fifth embodiment of the present application further provides a storage medium containing computer-executable instructions, which when executed by a computer processor, are used for executing the methods in the first and second embodiments of the method.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the method operations described above, and may also perform related operations in the method provided in any embodiments of the present application.
EXAMPLE six
A sixth embodiment of the present application further provides a computer program product, which includes computer-executable instructions, when executed by a computer processor, for performing the method in the first and second embodiments of the method.
Of course, the computer program product provided in the embodiments of the present application has computer-executable instructions that are not limited to the method operations described above, and may also perform related operations in the method provided in any embodiments of the present application.
From the above description of the embodiments, it is obvious for those skilled in the art that the present application can be implemented by software and necessary general hardware, and certainly can be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling an electronic device (which may be a personal computer, a server, or a network device) to execute the methods described in the embodiments of the present application.
It should be noted that, in the embodiment of the apparatus, the included units and modules are merely divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional units are only used for distinguishing one functional unit from another, and are not used for limiting the protection scope of the application.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present application and the technical principles employed. It will be understood by those skilled in the art that the present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the application. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the appended claims.
Claims (10)
1. A method for power line detection, the method being applied to a fault patrol terminal, the fault patrol terminal being connected with a detection clamp device, the method comprising:
acquiring a first line parameter of a first detection line and a second line parameter of a second detection line, and determining a line parameter threshold value based on the first line parameter and/or the second line parameter, wherein the first detection line and the second detection line are lines positioned on two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line;
receiving a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, which are sent by the detection clamp device;
and respectively judging whether the first detection circuit and the second detection circuit have faults or not according to the line parameter threshold, the first current value and the second current value.
2. The method of claim 1, wherein the line parameter threshold comprises an impedance threshold;
the determining whether the first detection line and the second detection line have faults according to the line parameter threshold, the first current value and the second current value respectively includes:
determining a current threshold based on the impedance threshold;
comparing the first and second current values to the current threshold values, respectively;
and if the first current value and the second current value are both smaller than or equal to the current threshold value, determining that neither the first detection line nor the second detection line has faults.
3. The method of claim 2, wherein the determining whether the first detection line and the second detection line have failed according to the line parameter threshold, the first current value, and the second current value, respectively, further comprises:
if the first current value is larger than the current threshold value but the second current value is smaller than or equal to the current threshold value, calculating a first ratio of the first current value to the second current value;
if the first ratio is larger than or equal to a first set value, judging that the first detection line has a fault, and judging that the second detection line has no fault;
and if the first ratio is smaller than a first set value, judging that neither the first detection line nor the second detection line has faults.
4. The method of claim 2, wherein the determining whether the first detection line and the second detection line have failed according to the line parameter threshold, the first current value, and the second current value, respectively, further comprises:
if the first current value and the second current value are both larger than the current threshold, calculating a second ratio of the first current value to the current threshold and a third ratio of the second current value to the current threshold;
if the second ratio and the third ratio are both larger than a preset range value, determining that both the first detection circuit and the second detection circuit have faults;
if the second ratio is larger than a preset range value and the third ratio is smaller than the preset range value, judging that the first detection line has a fault, and judging that the second detection line has no fault;
and if the second ratio and the third ratio are both smaller than a preset range value, determining that neither the first detection circuit nor the second detection circuit has a fault.
5. The method of any of claims 1-4, wherein the first line parameter comprises a first applied voltage and the second line parameter comprises a second applied voltage; said determining a line parameter threshold based on said first line parameter and/or said second line parameter comprises:
respectively searching the first applied voltage and the second applied voltage in a preset configuration table to obtain a first line parameter threshold value matched with the first applied voltage and a second line parameter threshold value matched with the second applied voltage;
determining a final line parameter threshold based on the first line parameter threshold and/or the second line parameter threshold.
6. The method according to any one of claims 1-4, further comprising:
displaying a hanging point, a first detection line and a second detection line which are positioned at two sides of the hanging point through a display device of the fault inspection terminal;
and carrying out alarm prompt on the first detection line and/or the second detection line with the fault.
7. The method of claim 6, wherein the alert prompt comprises at least one of:
displaying a fault indication arrow in a specified position of the first detection line and/or the second detection line in which the fault occurs;
highlighting the first detection line and/or the second detection line which have faults;
and sending out voice prompt aiming at the first detection line and/or the second detection line which are in failure.
8. The utility model provides a device that power line detected, its characterized in that, the device is applied to in the trouble inspection terminal, the trouble inspection terminal establishes the connection with detection pincers equipment, the device includes:
the line parameter acquisition module is used for acquiring a first line parameter of a first detection line and a second line parameter of a second detection line, wherein the first detection line and the second detection line are lines which are positioned at two sides of a hanging point when the detection clamp equipment is hung on a suspected fault power line;
a line parameter threshold determination module for determining a line parameter threshold based on the first line parameter and/or the second line parameter;
the current value receiving module is used for receiving a first current value corresponding to the first detection line and a second current value corresponding to the second detection line, which are sent by the detection clamp device;
and the fault detection module is used for respectively judging whether the first detection circuit and the second detection circuit have faults or not according to the line parameter threshold value, the first current value and the second current value.
9. An electronic device, characterized in that the electronic device comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of any one of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 7.
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