WO2018232937A1

WO2018232937A1 - Electric power cable fault monitoring method and apparatus

Info

Publication number: WO2018232937A1
Application number: PCT/CN2017/097985
Authority: WO
Inventors: 杜光东
Original assignee: 深圳市盛路物联通讯技术有限公司
Priority date: 2017-06-23
Filing date: 2017-08-18
Publication date: 2018-12-27
Also published as: CN107390049A

Abstract

The present invention relates to an electric power cable fault monitoring method and apparatus, the method comprising: acquiring electric power parameter information of an electric power cable to be measured; during a set monitoring period, if the electric power parameter information is within a pre-determined range, then calculating an electric power parameter rate of change according to the electric power parameter information, and generating monitoring information according to the electric power parameter rate of change; sending the monitoring information to a scheduling terminal. The present invention acquires electric power parameter information of an electric power cable to be measured, then calculates an electric power parameter rate of change according to the electric power parameter information, generates monitoring information according to the electric power parameter rate of change, and finally sends detected information to a scheduling terminal; in addition, the invention may effectively perform predictive monitoring of fault risk of an electric power cable by remote monitoring of electric power cable electric power parameter rate of change, providing advance knowledge that a fault may occur in an electric power cable, helping an electric power department take measures in advance, minimizing inconvenience to users and lowering economic losses.

Description

Power cable fault monitoring method and device

Technical field

The present invention relates to the field of fault repair processing technologies, and in particular, to a method and device for repairing faults of a shared device.

Background technique

Power cables are cables used to transmit and distribute electrical energy. Power cables are commonly used in urban underground power grids, power stations, lead-out lines, internal power supply for industrial and mining enterprises, and power lines under rivers. In power lines, the proportion of cables is gradually increasing. Power cables are cable products used to transmit and distribute working power in the main lines of power systems, including various voltage levels of 1-500KV and above, various insulation. power cable.

Power cable lines have been popularized in power supply lines such as cities, factories, and enterprises due to their concealed installation, convenient maintenance, reliable operation, and beautifying environment. However, once the cable fails during operation, it will be continuous. High production operations bring huge losses. Whether it is high-voltage cable or low-voltage cable, it is often caused by short circuit, overload operation, insulation aging or exposure during construction, installation and operation.

At present, most cable fault power departments send maintenance personnel to detect by manual hand-held testing equipment. This type of detection method not only has low detection efficiency, but also has high detection cost. More importantly, this detection method can usually only occur after failure. Trouble-shooting detection can not predictively test the power cable, which leads to a rush in the detection after the fault occurs, delaying a lot of time, and causing huge economic losses, causing inconvenience to the user.

Summary of the invention

The technical problem to be solved by the present invention is to provide a power cable fault monitoring method and device for the above-mentioned deficiencies of the prior art.

In a first aspect, the present invention provides a power cable fault monitoring method, the method comprising: acquiring power parameter information of a power cable to be tested, where the power parameter information includes voltage, current, and temperature; and within a set monitoring period, If the power parameter information is within a preset range, calculating a power parameter change rate according to the power parameter information, and generating monitoring information according to the power parameter change rate, where the preset range is when the power cable to be tested is working normally The range of variation of the power parameter; the monitoring information is sent to the scheduling terminal.

The power cable fault monitoring method of the embodiment of the present invention calculates a power parameter change rate according to the power parameter information after acquiring the power parameter information of the power cable to be tested, and generates monitoring information according to the power parameter change rate, and finally The detection information is sent to the dispatching terminal, and the detection personnel are not required to perform real-time detection now, and the power parameter change rate of the power cable can be remotely predicted to predict the potential fault risk of the power cable, and the power cable may be known in advance. It will facilitate the power sector to take measures in advance to minimize the inconvenience caused to users and reduce the economic losses.

Further, the method further includes: collecting environmental parameter information, generating an environmental correction factor according to the environmental parameter information, and correcting the power parameter information according to the environmental correction factor, and then according to the corrected power parameter information Determine if it is within the preset range.

In the above embodiment, the environment correction factor is generated according to the environment parameter information, and the power parameter information is corrected according to the environment correction factor, so that the power parameter change caused by the environmental factor can be corrected, for example, The influence of the ambient temperature on the temperature of the power cable, the influence of the rain and snow weather on the current and voltage of the power cable, so that the corrected power parameters reflect the power parameter information of the power cable itself as much as possible, so that the corrected power parameter information can be More accurate judgment of whether the power cable is faulty or abnormal.

Further, the method further includes: performing statistics on the early warning monitoring information within a preset time range, and obtaining an early warning occurrence frequency of the power cable to be tested, and determining reliability of the power cable to be tested according to the frequency of the early warning occurrence The level is saved and downloaded for the background monitoring platform.

In the above embodiment, the statistical analysis of the early warning monitoring information is performed, and the frequency of the early warning occurrence of the power cable to be tested is obtained, and the reliability level of the power cable to be tested is determined according to the frequency of the early warning occurrence, thereby facilitating the background. The manager evaluates the reliability of the power cable to be tested, so that the power cable is found in time when the power cable is slightly abnormal, and the maintenance personnel are notified through the dispatching terminal to ensure that the power cable works normally.

Further, the method further includes: performing statistics on the fault monitoring information at a preset time interval, obtaining a frequency of occurrence of a fault of the power cable to be tested, and determining a fault level of the power cable to be tested according to the frequency of the fault occurrence. And save for the background monitoring platform to download.

In the foregoing embodiment, by performing statistics on the fault monitoring information, the frequency of occurrence of the fault of the power cable to be tested is obtained, and the fault level of the power cable to be tested is determined according to the frequency of the fault occurrence, thereby facilitating the background management personnel to power The cable fault is analyzed, the deep fault cause is found in time, and the fault repair is completed as soon as possible, and the probability of the fault recurring is reduced as much as possible.

Further, the method further includes: after the repair is completed, receiving feedback information sent by the scheduling terminal, and determining, according to the feedback information, whether the monitoring information is accurate, and generating a monitoring report according to the determination result, and uploading to the background monitoring platform. .

In the above embodiment, the feedback information is used to determine whether the monitoring information is accurate, and it is convenient to promptly find errors or errors in the monitoring information, and notify the maintenance personnel to adjust in time to avoid the presence of errors or erroneous monitoring information to the power cable. Monitoring is inconvenient and even affects the normal operation of the power cable.

In a second aspect, the present invention provides a power cable fault monitoring apparatus, the apparatus comprising

An acquiring unit, configured to acquire power parameter information of the power cable to be tested, where the power parameter information includes voltage, current, and temperature; and a processing unit, configured to: if the power parameter information is in a preset range, within a set monitoring period Calculating a power parameter change rate according to the power parameter information, and generating monitoring information according to the power parameter change rate, where the preset range is a range of changes of the power parameter when the power cable to be tested is working normally; The monitoring information is sent to the scheduling terminal.

The power cable fault monitoring device of the present invention calculates a power parameter change rate according to the power parameter information after acquiring the power parameter information of the power cable to be tested, and generates monitoring information according to the power parameter change rate, and finally detects the information. Sending to the dispatching terminal, no need to send the inspection personnel to the real-time detection now, and through the remote control of the power cable's power parameter rate, the potential fault risk of the power cable can be effectively monitored, and the fault of the power cable may be known in advance, which is convenient. The power sector takes measures in advance to minimize the inconvenience caused to users and reduce the economic losses.

Further, the device further includes a correction unit configured to collect environmental parameter information, generate an environmental correction factor according to the environmental parameter information, and correct the power production surgical information according to the environmental correction factor, and then perform the processing The unit determines that it is within a preset range according to the corrected power parameter information.

In the above embodiment, the correcting unit generates an environmental correction factor according to the environmental parameter information by collecting environmental parameter information, and corrects the power parameter information according to the environmental correction factor, so as to correct power caused by environmental factors. Parameter changes, such as the influence of ambient temperature on the temperature of the power cable, the influence of rain and snow weather on the current and voltage of the power cable, so that the corrected power parameters reflect the power parameter information of the power cable itself as much as possible, so that the corrected power is passed. The parameter information can more accurately determine whether the power cable is faulty or abnormal.

Further, the device further includes a first statistic unit, configured to perform statistics on the early warning monitoring information within a preset time range, and obtain an early warning occurrence frequency of the power cable to be tested, and determine the frequency according to the frequency of the early warning occurrence. Measure the reliability level of the power cable and save it for download by the background monitoring platform.

Further, the device further includes a second statistic unit, configured to perform statistics on the fault monitoring information every preset time interval, and obtain a fault occurrence frequency of the power cable to be tested, and determine the frequency according to the fault occurrence frequency. The fault level of the power cable is measured and saved for download by the background monitoring platform.

Further, the device further includes a feedback unit, after receiving the repair, receiving feedback information sent by the scheduling terminal, and determining, according to the feedback information, whether the monitoring information is accurate, and generating a monitoring report according to the determination result, and uploading To the background monitoring platform.

In the above embodiment, the feedback information is used to determine whether the monitoring information is accurate, and it is convenient to promptly find errors or errors in the monitoring information, and notify the maintenance personnel to adjust in time to avoid the presence of errors or erroneous monitoring information to the power cable. Monitoring brings inconvenience and even affects the normal work of power cables Work.

The advantages of the additional aspects of the invention will be set forth in part in the description which follows.

DRAWINGS

1 is a schematic flowchart of a power cable fault monitoring method according to an embodiment of the present invention;

2 is a schematic flowchart of a power cable fault monitoring method according to another embodiment of the present invention;

3 is a schematic flowchart of a power cable fault monitoring method according to another embodiment of the present invention;

4 is a schematic flowchart of a power cable fault monitoring method according to another embodiment of the present invention;

FIG. 5 is a structural diagram of a power cable fault monitoring system according to an embodiment of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a power cable fault monitoring apparatus according to an embodiment of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a power cable fault monitoring apparatus according to another embodiment of the present invention; FIG.

FIG. 8 is a schematic structural diagram of a power cable fault monitoring apparatus according to another embodiment of the present invention; FIG.

FIG. 9 is a structural diagram of a power cable fault monitoring system according to another embodiment of the present invention; FIG.

FIG. 10 is a schematic structural diagram of a power cable fault monitoring apparatus according to another embodiment of the present invention; FIG.

FIG. 11 is a schematic structural diagram of a power cable fault monitoring apparatus according to another embodiment of the present invention; FIG.

FIG. 12 is a schematic structural diagram of a power cable fault monitoring apparatus according to another embodiment of the present invention; FIG.

FIG. 13 is a schematic structural diagram of a power cable fault monitoring apparatus according to another embodiment of the present invention.

Detailed ways

In the following description, for purposes of explanation and description, reference However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the invention.

In the present invention, the power cable generally refers to a power cable of various voltage levels of 1-500KV and above, unless otherwise specified, and may be a power cable erected by a tower, or may be buried underground or otherwise concealed. The power cable set in the manner may be an industrial power cable or a civilian power cable.

FIG. 1 is a schematic flowchart diagram of a power cable fault monitoring method according to an embodiment of the present invention. The execution body of the method shown in FIG. 1 may be a server, and the method includes:

S110. Obtain power parameter information of the power cable to be tested, where the power parameter information includes voltage, current, and temperature.

In practice, a plurality of monitoring points are evenly spaced at equal intervals on the power cable to be tested, and power parameter sensing information at all the monitoring points is separately collected, and the power parameter sensing information is sent to a background monitoring platform, and the background monitoring is performed. The platform reads the corresponding power parameter information according to the power parameter sensing information, so that the power parameter information of the power cable to be tested can be accurately obtained, and the power parameter information is determined according to the power parameter information. Whether the power parameter information is within a preset range, and calculating a power parameter change rate according to the power parameter information, and generating monitoring information.

It should be noted that, in practice, the power parameter information at the monitoring point is acquired every preset time interval, and the power parameter change rate is determined by the power parameter information acquired twice.

In addition, the power parameter information includes voltage, current and temperature. The voltage and power must be monitored as the necessary parameters for the cable operation. The voltage and power can reflect the normal working state of the power cable. At the same time, the temperature can assist in detecting the power cable. Reliability, because the power cable will generate heat when it is energized. When the power cable fails, such as a short circuit, the temperature of the power cable will change greatly. Thus, the current and temperature changes can further determine the fault condition of the power cable. Of course, there are other fault states, which are not listed here.

Preferably, in an embodiment of the present invention, the method further includes: collecting environmental parameter information, generating an environmental correction factor according to the environmental parameter information, and pairing the power according to the environmental correction factor The parameter information is corrected, and then it is judged whether it is within a preset range according to the corrected power parameter information.

S120, in the set monitoring period, if the power parameter information is within a preset range, calculating a power parameter change rate according to the power parameter information, and generating monitoring information according to the power parameter change rate, the pre- The range is the range of variation of the power parameters when the power cable to be tested is working normally.

Here, it should be noted that after reading the power parameter information, first determining whether the power parameter information is within a preset range, corresponding to the power parameter information of the following text exceeding a preset range, if the power parameter information is in advance Within the range, it indicates that the power parameters of the power cable are normal, which is a prerequisite for the normal operation of the power cable.

In particular, in this embodiment, the monitoring period is equal to the collection period at the monitoring point, and is consistent, that is, the power parameter information is collected at the monitoring point every time an acquisition period is detected, and in each monitoring After the end of the period, the collected power parameter information is sent to the background monitoring platform, and the background monitoring platform finally obtains monitoring information according to the power parameter information.

S130. Send the monitoring information to the scheduling terminal.

Here, the dispatching department receives the monitoring information according to the scheduling terminal, and arranges the scheduling and deployment of the maintenance work according to the monitoring information, so that the remote monitoring and maintenance of the power cable can be realized, and the power electric power is ensured. The cable works normally.

The power cable fault monitoring method of the present invention calculates the power parameter change rate according to the power parameter information after acquiring the power parameter information of the power cable to be tested, and generates monitoring information according to the power parameter change rate, and finally detects the information. Sending to the dispatching terminal, no need to send the inspection personnel to the real-time detection now, and through the remote control of the power cable's power parameter rate, the potential fault risk of the power cable can be effectively monitored, and the fault of the power cable may be known in advance, which is convenient. The power sector takes measures in advance to minimize the inconvenience caused to users and reduce the economic losses.

Preferably, as an embodiment of the present invention, as shown in FIG. 2, in the embodiment, the method includes:

S210. Calculate a difference between two adjacent power parameter information.

When the power cable is working normally, the power parameter information fluctuates within a certain range. By calculating the difference between the two adjacent power parameter information, the fluctuation of the power parameter during the operation of the power cable can be reflected, so that On the one hand, it can be used as the most direct basis for evaluating whether the power parameter is normal. On the other hand, the change rate of the power parameter can also be reflected according to the difference between two adjacent power parameter information of the power parameter, which can be analyzed. Whether the power cable has an important basis for potential faults will be detailed in the next step.

S220: Calculate a ratio of a difference between two adjacent power parameter information and a preset standard power parameter value, to obtain a power module change rate.

Here, the difference between two adjacent power parameter information may reflect an absolute change of the power cable parameter. In practice, the power parameter information of different levels of the power cable may be relatively large and can be allowed. The fluctuation range is also relatively large. Therefore, by calculating the ratio of the difference between the two adjacent power parameter information and the preset standard power parameter value, the change of the power cable relative to the incoming level can be reflected. That is, the relative change of the power parameter information can more accurately reflect the change of the power parameter.

It should be noted that the preset standard power parameter information needs to be set according to the level of the power cable to be tested. For example, a 110 KV power cable needs to be set in combination with the power parameters of the power cable of the level.

S230: Compare the power parameter change rate with a preset power parameter change range, and generate the monitoring information according to the comparison result.

In fact, during normal operation, the power cable's power parameter change rate will be relatively small. When a fault occurs, the power parameter is often abruptly changed, and the power parameter change rate is relatively large, often greater than 1, so the The power parameter change rate is compared with the preset power parameter change and the preset power parameter change rate range, and the working state information of the power cable can be reflected by the monitoring information, so that the dispatching department can track and process in time.

Preferably, in an embodiment of the present invention, the generating the monitoring information according to the comparison result specifically includes:

When the power parameter change rate is constant within the first preset power parameter change rate range, determining that the power cable is normal, and generating normal monitoring information according to the power parameter change rate;

Here, the first preset power parameter change rate range is preset to a fluctuation range when the power cable to be tested is normally operated, so when the power parameter change rate is constant at the first preset power parameter change rate range When inside, it can be judged that the power cable is working normally, otherwise, the power cable is faulty or there is a hidden danger of failure.

When the power parameter change rate exceeds the first preset power parameter change rate range, and the power parameter change rate is in the second preset power parameter change rate range, determining that the power cable has a safety hazard, and according to The power parameter change rate generates the early warning monitoring information; where the upper limit of the interval of the first preset power parameter change rate range is smaller than the lower limit of the second preset power parameter change rate range.

It should be noted that the interval between the first preset power parameter change rate range and the second preset power parameter change rate range is a critical range in which the power cable fails, and the surface power cable is still in operation, However, it indicates that the power cable is neither in normal working condition nor in a fault state, between the normal state and the fault state. Therefore, such a state can reflect the hidden danger of the power cable, that is, the power cable is The fault may occur. Therefore, the warning monitoring information can remind the dispatching department of the potential trouble of the power cable. It needs maintenance personnel to deal with it in time to avoid the normal operation of the cable due to the expected fault, reduce the inconvenience to the user, and reduce the economy. loss.

When the power parameter change rate exceeds the second preset power parameter change rate range, determining that the power cable is faulty, and generating fault monitoring information according to the power parameter change rate.

In practice, the fluctuation range of the power cable under test is determined in advance. When the power module change rate of the power cable exceeds the second preset power parameter change rate range, it indicates that the power cable has a fault, such as a sudden current. Increase, sudden voltage is zero, etc. In this case, the fault monitoring information can be stopped in time to immediately stop the dispatching department to take measures to arrange maintenance personnel to resume the normal work of the power cable as soon as possible.

Preferably, in an embodiment of the present invention, in the embodiment, the method further includes: determining that the power cable is faulty when the power parameter information exceeds a preset range within a set monitoring period, and The fault monitoring information is generated according to the power parameter information.

This situation corresponds to the power parameter information in the foregoing, and if the power parameter information exceeds the preset range, it indicates that the power parameter of the power cable itself is abnormal, and the precondition of the normal operation of the power cable is not available. Direct measures need to be taken, such as cutting off the circuit to ensure further damage to the power cables and equipment in the line.

This situation is relatively straightforward. Generally, it can be judged by the power cable parameter information itself, and there is no need to judge the power parameter change rate, and at this time, the fault power parameter information generated according to the power parameter is generated. It directly reflects that the power parameter information is out of the preset range.

Preferably, as an embodiment of the present invention, as shown in FIG. 3, in the embodiment, the method further includes:

S140: After transmitting the monitoring information to the scheduling terminal, the device further receives the progress tracking information sent by the scheduling terminal, generates a monitoring information record according to the monitoring information and the progress tracking information, and uploads the monitoring information record to the background monitoring platform.

In the foregoing embodiment, the monitoring information record is generated according to the progress tracking information sent by the scheduling terminal, including the normal monitoring information record, the early warning monitoring information record, and the fault monitoring information record, and the monitoring information record is uploaded to the monitoring information record. The background monitoring platform is convenient for back-end management personnel to check at any time.

In practice, the progress tracking information is sent by the dispatching department through the dispatching terminal, and the progress tracking information includes the processing progress, the name of the person in charge, the contact method, and the processing result, so as to facilitate the monitoring and control of the power cable management and monitoring in the background. track.

Preferably, as an embodiment of the present invention, in the embodiment, the method further includes: performing statistics on the early warning monitoring information within a preset time range, and obtaining an early warning frequency of the power cable to be tested, according to The frequency of the early warning occurs to determine the reliability level of the power cable to be tested and save it for download by the background monitoring platform.

Preferably, as an embodiment of the present invention, in the embodiment, the method further includes: performing statistics on the fault monitoring information at a preset time interval, and obtaining a fault occurrence frequency of the power cable to be tested, according to The fault occurrence frequency determines the fault level of the power cable to be tested and is saved for download by the background monitoring platform.

Preferably, as an embodiment of the present invention, as shown in FIG. 4, in the embodiment, the method further includes:

S150. After the maintenance is completed, receiving feedback information sent by the scheduling terminal, and determining, according to the feedback information, whether the monitoring information is accurate, and generating a monitoring report according to the determination result, and uploading to the background monitoring Control platform.

A power cable fault monitoring method according to an embodiment of the present invention is described in detail above with reference to FIGS. 1 through 4, and a power cable fault monitoring apparatus according to an embodiment of the present invention is described in detail below with reference to FIGS. 5-13.

FIG. 5 is a structural diagram of a power cable fault monitoring system according to an embodiment of the present invention. Specifically, as shown in FIG. 5, the system architecture includes at least: a front-end collection terminal, an Internet of Things system, and a scheduling terminal.

The front-end collection terminal includes a front-end collection terminal for each of the power parameter information, such as a voltage collection terminal, a current collection terminal, and a temperature collection terminal, and each of the front-end collection terminals includes a plurality of. Pre-marking a plurality of monitoring points evenly at equal intervals on the cable to be tested, and setting each of the front-end collection terminals at the monitoring points respectively, respectively collecting power parameter sensing information of the monitoring points, and then passing through the Internet of Things system The power parameter sensing information is sent to the background monitoring platform, and the background monitoring platform reads the corresponding power parameter information according to the power parameter sensing information, so that the power parameter information of the power cable to be tested can be accurately obtained, and Determining, according to the power parameter information, whether the power parameter information is within a preset range, and calculating a power parameter change rate according to the power parameter information, and generating monitoring information, and transmitting the monitoring information to the scheduling terminal.

Among them, the Internet of Things system includes IoT access devices, IoT interconnect devices, IoT security devices, and IoT application servers. The Internet of Things access device includes an Internet of Things remote access interface and an Internet of Things local access interface for establishing an external terminal and an Internet of Things service subsystem through the Internet of Things remote access interface and the Internet of Things local access interface. Connection. The Internet of Things interconnection device includes an Internet of Things interconnection interface for connecting with an Internet of Things access device, an IoT security device, an Internet of Things application server, and an internal terminal, respectively, for providing the Internet of Things connection through the Internet of Things interconnection interface. The interconnection of the device into the device and the IoT service subsystem.

This application document details the method flow performed by the IoT application server. In this embodiment, the Internet of Things application server is a background monitoring platform, that is, a power cable fault monitoring device. FIG. 6 is a schematic structural diagram of a vehicle accident rapid rescue device according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes: an obtaining unit, a processing unit, and a transmitting unit.

Obtaining a unit, acquiring power parameter information of the power cable to be tested, where the power parameter information includes voltage, current, and temperature;

In practice, the acquiring unit receives the power parameter sensing information sent by the front-end collecting terminal, and reads the corresponding power parameter information according to the power parameter sensing information, so that the power parameter information of the power cable to be tested can be accurately obtained.

It should be noted that, in practice, the power parameter information at the monitoring point is obtained every preset time interval, The power parameter change rate is judged by the power parameter information acquired twice adjacently.

Preferably, as an embodiment of the present invention, as shown in FIG. 7, the apparatus further includes a correction unit configured to collect environmental parameter information, generate an environmental correction factor according to the environmental parameter information, and according to the environmental correction factor Correcting the power parameter information, and determining whether the power parameter information is within a preset range according to the corrected power parameter information.

a processing unit, configured to calculate a power parameter change rate according to the power parameter information, and generate monitoring information according to the power parameter change rate, in the set monitoring period, if the power parameter information is within a preset range, The preset range is a range of variation of the power parameter when the power cable to be tested is working normally.

Here, it should be noted that after the processing unit reads the power parameter information, it is first determined whether the power parameter information is within a preset range, and corresponds to the power parameter information of the following text exceeding a preset range, if the power If the parameter information is within the preset range, it indicates that the power parameters of the power cable are normal, which is a prerequisite for the normal operation of the power cable.

And a sending unit, configured to send the monitoring information to the scheduling terminal.

Here, the dispatching department receives the monitoring information according to the scheduling terminal, and arranges the scheduling and deployment of the maintenance work according to the monitoring information, so that the remote monitoring and maintenance of the power cable can be realized, and the power cable can be normally operated.

The power cable fault monitoring device of the present invention obtains power parameter information of the power cable to be tested After that, the power parameter change rate is calculated according to the power parameter information, and the monitoring information is generated according to the power parameter change rate, and finally the detection information is sent to the scheduling terminal, and the detection personnel are not sent to the real-time detection, and the power is remotely transmitted. The power parameter change rate of the cable can effectively predict the potential failure risk of the power cable, know in advance the possible failure of the power cable, facilitate the power department to take measures in advance, minimize the inconvenience to the user, and reduce the economy. The damage caused.

Preferably, as an embodiment of the present invention, as shown in FIG. 8, the processing unit includes a difference calculation subunit, a ratio calculation subunit, and a comparison subunit.

a difference calculation subunit, configured to calculate a difference between two adjacent power parameter information;

When the power cable is working normally, the power parameter information fluctuates within a certain range. By calculating the difference between the two adjacent power parameter information, the fluctuation of the power parameter during the operation of the power cable can be reflected, so that On the one hand, it can be used as the most direct basis for evaluating whether the power parameter is normal. On the other hand, the change rate of the power parameter can also be reflected according to the difference between two adjacent power parameter information of the power parameter, which can be analyzed. Whether the power cable has an important basis for potential faults will be detailed below.

a ratio calculation subunit, configured to calculate a ratio of a difference between two adjacent power parameter information and a preset standard power parameter value, to obtain a rate of change of the power parameter;

The comparison subunit is configured to compare the power parameter change rate with a preset power parameter change range, and generate the monitoring information according to the comparison result.

Preferably, in an embodiment of the present invention, in the embodiment, the comparing subunit is specifically configured to:

When the power parameter change rate exceeds the first preset power parameter change rate range, and the power parameter change rate is in the second preset power parameter change rate range, determining that the power cable has a safety hazard, and according to The power parameter change rate generates the early warning monitoring information; wherein, the upper limit of the interval of the first preset power parameter change rate range is smaller than the lower limit of the second preset power parameter change rate range.

Preferably, as an embodiment of the present invention, on the basis of the embodiment shown in FIG. 8, as shown in FIG. 9, in this embodiment, the background monitoring platform is also interconnected with the emergency department application server to generate fault monitoring information. After that, the fault information is also sent to the emergency department application server, so that the emergency department can coordinate and solve the problem of the power cable in time.

Preferably, in an embodiment of the present invention, the processing unit is further configured to: when the power parameter information exceeds a preset range, in a set monitoring period, determine that the power cable is faulty, and according to The power parameter information generates fault monitoring information.

This situation is relatively straightforward. Generally, it can be judged by the power cable parameter information itself, and it is no longer necessary to judge the power parameter change rate. At this time, the fault power parameter information generated according to the power parameter can directly reflect that the power parameter information exceeds the pre-pre Set the scope.

Preferably, as an embodiment of the present invention, as shown in FIG. 10, on the basis of the embodiment shown in FIG. 7, in the embodiment, the apparatus further includes a progress tracking unit, configured to send monitoring information to the location. After the scheduling terminal is configured, the schedule tracking information sent by the scheduling terminal is received, and the monitoring information record is generated according to the monitoring information generated by the processing unit and the progress tracking information, and uploaded to the background monitoring platform.

In practice, the progress tracking information is sent by the scheduling department through the scheduling terminal, and the progress tracking information includes processing progress, processing result, monitoring information accuracy, etc., so that the background monitoring and tracking of the power cable management and monitoring is completed.

Preferably, as an embodiment of the present invention, as shown in FIG. 11, on the basis of the embodiment shown in FIG. 10, in the embodiment, the apparatus further includes a first statistical unit for using the preset time range. The early warning monitoring information is collected, and the frequency of the early warning occurrence of the power cable to be tested is obtained, and the reliability level of the power cable to be tested is judged according to the frequency of the early warning occurrence and saved for download by the background monitoring platform.

Preferably, as an embodiment of the present invention, as shown in FIG. 12, on the basis of the embodiment shown in FIG. 11, in the embodiment, the device further includes a second statistical unit, which is used for every preset time. The fault is monitored by the interval, and the fault occurrence frequency of the power cable to be tested is obtained, and the fault level of the power cable to be tested is determined according to the frequency of the fault occurrence and saved for download by the background monitoring platform.

Preferably, as an embodiment of the present invention, as shown in FIG. 13, on the basis of the embodiment shown in FIG. 12, in the embodiment, the apparatus further includes a check unit for receiving after the repair is completed. And sending the feedback information sent by the terminal, and determining whether the monitoring information is accurate according to the feedback information, and generating a monitoring report according to the determination result, and uploading the monitoring report to the background monitoring platform.

The reader should understand that in the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the embodiment or example is incorporated. The specific features, structures, materials, or characteristics described are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification and features of various embodiments or examples may be combined and combined without departing from the scope of the invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of cells is only a logical function division. In actual implementation, there may be another division manner. For example, multiple units or components may be combined or integrated. Go to another system, or some features can be ignored or not executed.

The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

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 integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit is implemented as a software functional unit and sold or used as a standalone product It can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent modification or can be easily conceived by those skilled in the art within the technical scope of the present disclosure. Such modifications or substitutions are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A power cable fault monitoring method, characterized in that the method comprises:

Obtaining power parameter information of the power cable to be tested;

During the set monitoring period, if the power parameter information is within a preset range, calculating a power parameter change rate according to the power parameter information, and generating monitoring information according to the power parameter change rate, the preset range The range of changes in power parameters for the power cable to be tested during normal operation;

The monitoring information is sent to the scheduling terminal.
The power cable fault monitoring method according to claim 1, wherein the generating monitoring information comprises:

Calculating a difference between two adjacent power parameter information;

Calculating a ratio of a difference between two adjacent power parameter information and a preset standard power parameter value, to obtain a power module change rate;

Comparing the power parameter change rate with a preset power parameter change rate range, and generating the monitoring information according to the comparison result.
The power cable fault monitoring method according to claim 2, wherein the generating the monitoring information according to the comparison result comprises:

When the power parameter change rate is constant within the first preset power parameter change rate range, determining that the power cable is normal, and generating normal monitoring information according to the power parameter change rate;

When the power parameter change rate exceeds the first preset power parameter change rate range, and the power parameter change rate is in the second preset power parameter change rate range, determining that the power cable has a safety hazard, and according to The power parameter change rate generates early warning monitoring information;

When the power parameter change rate exceeds the second preset power parameter change rate range, determining that the power cable is faulty, and generating fault monitoring information according to the power parameter change rate;

The upper limit of the interval of the first preset power parameter change rate range is smaller than the lower limit of the second preset power parameter change rate range.
The power cable fault monitoring method according to claim 1, wherein the method further comprises: when the power parameter information exceeds a preset range within a set monitoring period, determining that the power cable is faulty, and The fault monitoring information is generated according to the power parameter information.
The power cable fault monitoring method according to any one of claims 1 to 4, wherein the method further comprises: after transmitting the monitoring information to the scheduling terminal, receiving the tracking progress information sent by the scheduling terminal, according to The monitoring information and the tracking progress information generate a monitoring information record and upload to the background monitoring platform.
A power cable fault detecting device, characterized in that the device comprises:

An obtaining unit, configured to obtain power parameter information of the power cable to be tested;

a processing unit, configured to calculate a power parameter change rate according to the power parameter information, and generate a power parameter change rate according to the power parameter change rate, within a preset monitoring period, if the power parameter information is within a preset range Monitoring information, the preset range is a range of changes of power parameters when the power cable to be tested is working normally;

And a sending unit, configured to send the monitoring information to the scheduling terminal.
The power cable fault monitoring apparatus according to claim 6, wherein the processing unit is specifically configured to:

Calculating a difference between two adjacent power parameter information;

Calculating a ratio of a difference between two adjacent power parameter information and a preset standard power parameter value, to obtain a power module change rate;

Comparing the power parameter change rate with a preset power parameter change rate range, and generating the monitoring information according to the comparison result.
The power cable fault monitoring device according to claim 7, wherein the processing unit is further configured to:

When the power parameter change rate is constant within the first preset power parameter change rate range, determining that the power cable is normal, and generating normal monitoring information according to the power parameter change rate;

When the power parameter change rate exceeds the first preset power parameter change rate range, and the power parameter change rate is in the second preset power parameter change rate range, determining that the power cable has a safety hazard, and according to The power parameter change rate generates early warning monitoring information;

When the power parameter change rate exceeds the second preset power parameter change rate range, determining that the power cable is faulty, and generating fault monitoring information according to the power parameter change rate;

The upper limit of the interval of the first preset power parameter change rate range is smaller than the lower limit of the second preset power parameter change rate range.
The power cable fault monitoring apparatus according to claim 6, wherein the processing unit is further configured to: when the power parameter information exceeds a preset range within a set monitoring period, determine that a power cable appears The fault is generated, and fault monitoring information is generated according to the power parameter information.
The power cable fault monitoring apparatus according to any one of claims 6 to 9, wherein the apparatus further comprises a tracking unit, configured to receive feedback sent by the scheduling terminal after the processing unit generates the monitoring information. The information is generated according to the monitoring information generated by the processing unit and the feedback information, and uploaded to the background monitoring platform.