CN107390049A - A kind of power cable fault monitoring method and device - Google Patents
A kind of power cable fault monitoring method and device Download PDFInfo
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- CN107390049A CN107390049A CN201710487063.8A CN201710487063A CN107390049A CN 107390049 A CN107390049 A CN 107390049A CN 201710487063 A CN201710487063 A CN 201710487063A CN 107390049 A CN107390049 A CN 107390049A
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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
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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
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
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Abstract
The present invention relates to a kind of power cable fault monitoring method and device, this method includes the parameters of electric power information for obtaining power cable to be measured；In the monitoring cycle of setting, if parameters of electric power information is within a preset range, parameters of electric power rate of change is calculated according to parameters of electric power information, and monitoring information is generated according to parameters of electric power rate of change；Monitoring information is sent to dispatch terminal.The present invention passes through after the parameters of electric power information of power cable to be measured is obtained, parameters of electric power rate of change is calculated according to parameters of electric power information, and monitoring information is generated according to parameters of electric power rate of change, finally detection information is sent to dispatch terminal, and by effectively can remotely be monitored to the parameters of electric power rate of change of power cable to potential the being predicted property of failure risk of power cable, the failure that power cable may occur is known in advance, it is easy to power department to take measures in advance, the inconvenience brought to user is reduced as far as possible, and reduces the loss to caused by economy.
Description
Technical field
The present invention relates to power cable technical field, more particularly to a kind of power cable fault monitoring method and device.
Background technology
Power cable is the cable for transmitting and distributing electric energy, power cable be usually used in Urban Underground power network, power station,
Lead line, industrial and mining enterprises' in-line power and mistake river sea submarine transmission line.In power circuit, cable proportion just gradually increases
Add, power cable is transmitting and distribute the done manual work cable product of electric energy, including 1- in the basic routing line of power system
500KV and any of the above voltage class, the power cable of various insulation.
Power cable line is due to the reason such as its laying is hidden, easy to maintenance, reliable and beautifies the environment, at present in city
Popularized in the power supply circuit such as city, factory, enterprise, but cable will be given continuous once breaking down in operation
The high production operation of change degree brings huge loss.Either high-tension cable or low-voltage cable, in construction and installation, ran
Often because of the failure caused by reason such as short circuit, overload operation, insulation ag(e)ing or exposed effect in journey.
At present, most cable fault Electricity Department school maintenance personals are detected by man-hour manually hand-held detection device, this
Not only for detection efficiency than relatively low, testing cost is higher for detection mode, it is even more important that this detection mode is typically only capable to again
Failture evacuation detection is carried out after breaking down, it is impossible to being predicted property of power cable is detected, this is resulted in occurs in failure
Detection can be more hasty afterwards, delays many times, and can cause huge economic loss, is made troubles to user.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of power cable fault
Monitoring method and device.
In a first aspect, the invention provides a kind of power cable fault monitoring method, this method includes：Obtain electric power to be measured
The parameters of electric power information of cable, the parameters of electric power information include voltage, electric current and temperature；In the monitoring cycle of setting, such as
Parameters of electric power information described in fruit within a preset range, then calculates parameters of electric power rate of change, and root according to the parameters of electric power information
Monitoring information, the parameters of electric power when preset range is power cable normal work to be measured are generated according to the parameters of electric power rate of change
Excursion；The monitoring information is sent to dispatch terminal.
The power cable fault monitoring method of the embodiment of the present invention, by believing in the parameters of electric power for obtaining power cable to be measured
After breath, parameters of electric power rate of change is calculated according to the parameters of electric power information, and generate and monitor according to the parameters of electric power rate of change
Information, finally detection information is sent to dispatch terminal, without sending testing staff to be detected in real time till now, and by remote
Journey can be monitored effectively to the parameters of electric power rate of change of power cable to potential the being predicted property of failure risk of power cable, be carried
Before know the failure that power cable may occur, be easy to power department to take measures in advance, reduce bringing to user as far as possible
Inconvenience, and reduce the loss to caused by economy.
Further, methods described also includes：Ambient parameter information is gathered, according to the ambient parameter information build environment school
Positive divisor, and the parameters of electric power information according to the environmental correction factor pair is corrected, further according to the electricity after correction
Within a preset range whether force parameter information judge it.
In above-described embodiment, by collecting ambient parameter information, according to the ambient parameter information build environment correction factor,
And the parameters of electric power information according to the environmental correction factor pair is corrected, can correct electric caused by environmental factor
Force parameter changes, such as influence of the environment temperature to Temperature of Power Cables, influence of the sleety weather to power cable Current Voltage,
Parameters of electric power information when reflecting power cable itself work so that the parameters of electric power after corrected is tried one's best, so passes through school
Parameters of electric power information can after just more accurately judges whether power cable breaks down or abnormal.
Further, methods described also includes：The early warning and monitoring information is counted in preset time range, drawn
The early warning Frequency of power cable to be measured, the reliability step of power cable to be measured is judged simultaneously according to the early warning Frequency
Preserve, downloaded for background monitoring platform.
In above-described embodiment, by carrying out statistical analysis to the early warning and monitoring information, and power cable to be measured is drawn
Early warning Frequency, and judge according to the early warning Frequency reliability step of power cable to be measured, consequently facilitating backstage
Administrative staff assess the reliability of power cable to be measured, so as to be found in time when mile abnormality occurs in power cable, and pass through
Dispatch terminal notifies to investigate between attendant, it is ensured that power cable normal work.
Further, methods described also includes：The malfunction monitoring information is counted every prefixed time interval, drawn
The failure Frequency of power cable to be measured, fault level and the guarantor of power cable to be measured are judged according to the failure Frequency
Deposit, downloaded for background monitoring platform.
In above-described embodiment, by being counted to the malfunction monitoring information, the failure hair of power cable to be measured is drawn
Raw frequency, the fault level of power cable to be measured is judged according to the failure Frequency, consequently facilitating back-stage management personnel couple
The failure of power cable is analyzed, and finds profound failure cause in time, and completes trouble hunting as early as possible, is reduced as far as possible
The probability that failure occurs again.
Further, methods described also includes：After the completion of maintenance, the feedback information that the dispatch terminal is sent, and root are received
Judge whether the monitoring information is accurate according to the feedback information, and Surveillance is generated according to judged result, and after being uploaded to
Platform monitor supervision platform.
In above-described embodiment, judge whether the monitoring information is accurate by the feedback information, be easy to find in time
Error existing for monitoring information or mistake, and notify attendant to be adjusted in time, avoid existing error or mistake
Monitoring information is made troubles to the monitoring of power cable, or even influences the normal work of power cable.
Second aspect, the invention provides a kind of power cable fault monitoring device, described device includes
Acquiring unit, for obtaining the parameters of electric power information of power cable to be measured, the parameters of electric power information include voltage,
Electric current and temperature；Processing unit, in the monitoring cycle of setting, if the parameters of electric power information is within a preset range,
Parameters of electric power rate of change is then calculated according to the parameters of electric power information, and monitoring letter is generated according to the parameters of electric power rate of change
Breath, the excursion of parameters of electric power when the preset range is power cable normal work to be measured；Transmitting element, for by described in
Monitoring information is sent to dispatch terminal.
The power cable fault monitoring device of the present invention, by after the parameters of electric power information of power cable to be measured is obtained,
Parameters of electric power rate of change is calculated according to the parameters of electric power information, and monitoring information is generated according to the parameters of electric power rate of change,
Finally detection information is sent to dispatch terminal, without sending testing staff to be detected in real time till now, and by long-range right
The parameters of electric power rate of change of power cable can be monitored effectively to potential the being predicted property of failure risk of power cable, be known in advance
The failure that dawn power cable may occur, is easy to power department to take measures in advance, reduces the inconvenience brought to user as far as possible,
And reduce the loss to caused by economy.
Further, described device also includes correction unit, for gathering ambient parameter information, is believed according to the ambient parameter
Build environment correction factor is ceased, and electric power production operation information is corrected according to the environmental correction factor pair, then
State processing unit and judge that it is all within a preset range according to the parameters of electric power information after correction.
In above-described embodiment, the correcting unit is given birth to by gathering ambient parameter information according to the ambient parameter information
Into environment correction factor, and the parameters of electric power information according to the environmental correction factor pair is corrected, can correct due to
Parameters of electric power caused by environmental factor changes, such as influence of the environment temperature to Temperature of Power Cables, and sleety weather is to electric power electricity
The influence of cable Current Voltage so that the electric power ginseng that the parameters of electric power after corrected is tried one's best when reflecting power cable itself work
Number information, so by the parameters of electric power information can after correction more accurately judge power cable whether break down or
It is abnormal.
Further, described device also includes the first statistic unit, in preset time range to the early warning and monitoring
Information is counted, and draws the early warning Frequency of power cable to be measured, judges electric power to be measured according to the early warning Frequency
The reliability step of cable and preservation, downloaded for background monitoring platform.
In above-described embodiment, by carrying out statistical analysis to the early warning and monitoring information, and power cable to be measured is drawn
Early warning Frequency, and judge according to the early warning Frequency reliability step of power cable to be measured, consequently facilitating backstage
Administrative staff assess the reliability of power cable to be measured, so as to be found in time when mile abnormality occurs in power cable, and pass through
Dispatch terminal notifies to investigate between attendant, it is ensured that power cable normal work.
Further, described device also includes the second statistic unit, for every prefixed time interval to the malfunction monitoring
Information is counted, and draws the failure Frequency of power cable to be measured, judges electric power to be measured according to the failure Frequency
The fault level of cable and preservation, downloaded for background monitoring platform.
In above-described embodiment, by being counted to the malfunction monitoring information, the failure hair of power cable to be measured is drawn
Raw frequency, the fault level of power cable to be measured is judged according to the failure Frequency, consequently facilitating back-stage management personnel couple
The failure of power cable is analyzed, and finds profound failure cause in time, and completes trouble hunting as early as possible, is reduced as far as possible
The probability that failure occurs again.
Further, described device also includes feedback unit, after the completion of maintenance, receives the anti-of the dispatch terminal transmission
Feedforward information, and judge whether the monitoring information is accurate according to the feedback information, and Surveillance is generated according to judged result,
And it is uploaded to background monitoring platform.
In above-described embodiment, judge whether the monitoring information is accurate by the feedback information, be easy to find in time
Error existing for monitoring information or mistake, and notify attendant to be adjusted in time, avoid existing error or mistake
Monitoring information is made troubles to the monitoring of power cable, or even influences the normal work of power cable.
The advantages of aspect that the present invention adds, will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by present invention practice.
Brief description of the drawings
Fig. 1 is the power cable fault monitoring method schematic flow sheet that one embodiment of the invention provides；
Fig. 2 is the power cable fault monitoring method schematic flow sheet that another embodiment of the present invention provides；
Fig. 3 is the power cable fault monitoring method schematic flow sheet that another embodiment of the present invention provides；
Fig. 4 is the power cable fault monitoring method schematic flow sheet that another embodiment of the present invention provides；
Fig. 5 is the power cable fault monitoring system Organization Chart that one embodiment of the invention provides；
Fig. 6 is the power cable fault monitoring device structural representation that one embodiment of the invention provides；
Fig. 7 is the power cable fault monitoring device structural representation that another embodiment of the present invention provides；
Fig. 8 is the power cable fault monitoring device structural representation that another embodiment of the present invention provides；
Fig. 9 is the power cable fault monitoring system Organization Chart that another embodiment of the present invention provides；
Figure 10 is the power cable fault monitoring device structural representation that another embodiment of the present invention provides；
Figure 11 is the power cable fault monitoring device structural representation that another embodiment of the present invention provides；
Figure 12 is the power cable fault monitoring device structural representation that another embodiment of the present invention provides；
Figure 13 is the power cable fault monitoring device structural representation that another embodiment of the present invention provides.
Embodiment
In describing below, in order to illustrate rather than in order to limit, it is proposed that such as particular system structure, module, technology it
The detail of class, understand the present invention to cut thoroughly.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, omit to well-known system, circuit and
The detailed description of method, in case unnecessary details hinders description of the invention.
In the present invention, the power cable in case of no particular description, refers to 1-500KV and any of the above voltage
The power cable of grade can be by the power cable of tower erection or be embedded in underground or with other hidden sides
The power cable that formula is set, can be industrial power cable or civilian power cable.
As Fig. 1 gives a kind of power cable fault monitoring method schematic flow sheet provided in an embodiment of the present invention.Such as Fig. 1
The executive agent of shown method can be server, and this method includes：
S110, obtains the parameters of electric power information of power cable to be measured, and the parameters of electric power information includes voltage, electric current and temperature
Degree；
In practice, some monitoring points are uniformly marked at equal intervals on power cable to be measured, and gather all prisons respectively
Parameters of electric power induction information at measuring point, and the parameters of electric power induction information is sent to backstage monitoring platform, the backstage
Monitoring platform parameters of electric power information according to corresponding to being read the parameters of electric power induction information, so can accurately obtain electricity to be measured
The parameters of electric power information of power electric power, and whether judge to be parameters of electric power information in preset range according to the parameters of electric power information
It is interior, and parameters of electric power rate of change is calculated according to the parameters of electric power information, and generate monitoring information.
It should be noted that in practice, the parameters of electric power information at the monitoring point is obtained at interval of preset time, is passed through
The adjacent parameters of electric power information obtained twice judges parameters of electric power rate of change.
In addition, parameters of electric power information includes voltage, electric current and temperature, the call parameter of voltage and electric power as cable work
Have to be monitored, the normal operating conditions of power cable can be reflected by voltage and electric power, meanwhile, can by temperature
With the reliability of auxiliary detection power cable, because power cable can generate heat when being powered, when power cable failure, such as
When short-circuit, great change can occur for the temperature of power cable, so, by the change of electric current and temperature, may further determine that electric power
The fault state of cable.Certainly, also other malfunctions, are not enumerated here.
Preferably as in one embodiment of the present of invention, in the embodiment, methods described also includes：Gather environment ginseng
Number information, according to the ambient parameter information build environment correction factor, and the electric power according to the environmental correction factor pair
Within a preset range whether parameter information is corrected, judge it further according to the parameters of electric power information after correction.
In above-described embodiment, by collecting ambient parameter information, according to the ambient parameter information build environment correction factor,
And the parameters of electric power information according to the environmental correction factor pair is corrected, can correct electric caused by environmental factor
Force parameter changes, such as influence of the environment temperature to Temperature of Power Cables, influence of the sleety weather to power cable Current Voltage,
Parameters of electric power information when reflecting power cable itself work so that the parameters of electric power after corrected is tried one's best, so passes through school
Parameters of electric power information can after just more accurately judges whether power cable breaks down or abnormal.
S120, in the monitoring cycle of setting, if the parameters of electric power information is within a preset range, according to the electricity
Force parameter information calculates parameters of electric power rate of change, and generates monitoring information, the default model according to the parameters of electric power rate of change
Enclose for power cable normal work to be measured when parameters of electric power excursion.
It is pointed out here that after reading parameters of electric power information, first determine whether the parameters of electric power information whether pre-
If corresponding beyond preset range with following parameters of electric power information in scope, if the parameters of electric power information is in default model
In enclosing, then show that the parameters of electric power of power cable is normal in itself, this is the precondition of power cable normal work.
Especially, in the present embodiment, the monitoring cycle is equal with the collection period at the monitoring point, and keeps one
Cause, i.e., often detect a collection period and a parameters of electric power information is gathered at the monitoring point, and in each monitoring cycle knot
The parameters of electric power information of collection is sent to the backstage monitoring platform after beam, by the backstage monitoring platform come according to the electricity
Force parameter information finally gives monitoring information.
S130, the monitoring information is sent to dispatch terminal.
Here, traffic department receives monitoring information according to by dispatch terminal, and arranges maintenance work according to monitoring information
Scheduling and deployment, can thus realize remote monitoring and the maintenance to power cable, it is ensured that power cable normal work.
The power cable fault monitoring method of the present invention, by after the parameters of electric power information of power cable to be measured is obtained,
Parameters of electric power rate of change is calculated according to the parameters of electric power information, and monitoring information is generated according to the parameters of electric power rate of change,
Finally detection information is sent to dispatch terminal, without sending testing staff to be detected in real time till now, and by long-range right
The parameters of electric power rate of change of power cable can be monitored effectively to potential the being predicted property of failure risk of power cable, be known in advance
The failure that dawn power cable may occur, is easy to power department to take measures in advance, reduces the inconvenience brought to user as far as possible,
And reduce the loss to caused by economy.
Preferably as one embodiment of the present of invention, as shown in Fig. 2 in the embodiment, methods described includes：
S210, calculate the difference between the two neighboring parameters of electric power information；
During power cable normal work, the parameters of electric power information can fluctuate in certain scope, adjacent by calculating
Difference between two parameters of electric power information, parameters of electric power fluctuation situation during power cable work can be reflected, this
On the one hand sample can be used as assesses the whether normal most direct basis of parameters of electric power, on the other hand, can also be according to the electric power
Difference between the two neighboring parameters of electric power information of parameter reflects parameters of electric power rate of change, and this can be used as analysis electric power
Cable whether there is the important evidence of incipient fault hidden danger, will be specifically discussed in detail in next step.
S220, calculate the ratio of the difference and preset standard parameters of electric power value between the two neighboring parameters of electric power information
Value, obtains the parameters of electric power rate of change；
Here, the difference between the two neighboring parameters of electric power information can reflect the absolute change of power cable parameter
Change situation, in practice, the power cable of different stage, its parameters of electric power information in itself may be bigger, and can allow for
Fluctuation range it is also relatively large, so, by calculating the difference between the two neighboring parameters of electric power information and pre- bidding
The ratio of quasi- parameters of electric power value, you can reflect the situation of change relative to the power cable for carrying out rank, that is, pass through parameters of electric power
The relative change of information can more accurately reflect the situation of change of parameters of electric power.
It is pointed out that the preset standard parameters of electric power information needs to be set according to the rank of power cable to be measured
It is fixed, for example, 110KV power cable, it is necessary to reference to the rank power cable normal work when parameters of electric power set.
S230, by the parameters of electric power rate of change compared with default parameters of electric power excursion, and according to the ratio
Relatively result generates the monitoring information.
In fact, during normal work, the parameters of electric power rate of change of the power cable can be smaller, past when a failure occurs
Toward can be along with the mutation of parameters of electric power, and parameters of electric power rate of change can be bigger, commonly greater than 1, so by the electric power
Parameter change rate changes compared with presetting parameters of electric power rate of change scope with default parameters of electric power, can pass through monitoring information
Reflect the work state information of power cable, be easy to traffic department to track and handle in time.
Preferably as in one embodiment of the present of invention, in the embodiment, the prison is generated according to the comparative result
Measurement information specifically includes：
Preset when the parameters of electric power rate of change is constant first in the range of parameters of electric power rate of change, then judge power cable
Normally, and according to the parameters of electric power rate of change normal monitoring information is generated；
Here, the described first default parameters of electric power rate of change scope is when being redefined for power cable normal work to be measured
Fluctuation range, so when the parameters of electric power rate of change it is constant in the range of the described first default parameters of electric power rate of change when,
It may determine that power cable is working properly, otherwise, power cable breaks down or in the presence of the hidden danger to break down.
When the parameters of electric power rate of change exceedes the described first default parameters of electric power rate of change scope, and the parameters of electric power
Potential safety hazard be present positioned at the described second default parameters of electric power rate of change scope, then judgement power cable in rate of change, and according to institute
State parameters of electric power rate of change generation early warning and monitoring information；Here, on the section of the described first default parameters of electric power rate of change scope
Limit is less than the interval limit of the described second default parameters of electric power rate of change scope.
It is pointed out that the described here first default parameters of electric power rate of change scope and the second default parameters of electric power change
Section between rate scope is the critical range that power cable breaks down, although its surface power cable is still within work
In, but it shows that power cable is both not at normal operating conditions, nor malfunction is in, between normal condition and failure
Between state, so, such a state can reflect that power cable has the hidden danger to break down, i.e., subsequent power cable
It is likely to break down, so by early warning and monitoring information traffic department's power cable can be reminded the hidden of failure to be present
Suffer from, it is necessary to attendant's timely processing, avoid due to can the phase fault impact cable normal work, reduce what is brought to user
Inconvenience, and reduce economic loss.
Parameters of electric power rate of change scope is preset when the parameters of electric power rate of change exceedes described second, then judges power cable
Break down, and malfunction monitoring information is generated according to the parameters of electric power rate of change.
In practice, fluctuation range during power cable fault work to be measured is preset, then, when the electric power of power cable
When parameter change rate is more than the second default parameters of electric power rate of change scope, indicate that failure, such as electric current occurs in power cable
Increase, voltage are zero etc. suddenly suddenly, in this case, can stop traffic department in time by the malfunction monitoring information
Take immediate steps, arrange attendant to recover the normal work of power cable as early as possible.
Preferably as in one embodiment of the present of invention, in the embodiment, methods described also includes：When in setting
In monitoring cycle, the parameters of electric power information exceeds preset range, then judges that power cable breaks down, and according to the electric power
Parameter information generates malfunction monitoring information.
Such case and parameters of electric power information above are corresponding in preset range, if the parameters of electric power information exceeds
Preset range, then show that exception occurs in itself in the parameters of electric power of power cable, at this moment the precondition of power cable normal work
Do not possess, it is necessary to directly take measures, for example cut off circuit, it is ensured that the installations and facilities in power cable and circuit are further
Suffer damage.
Such case is relatively directly perceived, typically by power cable parameter information in itself it may determine that, without sentencing again
Force parameter rate of change is powered off, and now, can directly be reflected according to the failure parameters of electric power information that the parameters of electric power generates
Go out parameters of electric power information and exceed preset range.
Preferably as one embodiment of the present of invention, as shown in figure 3, in the embodiment, methods described also includes：
S140, after monitoring information to dispatch terminal is sent, the progress chasing information that the dispatch terminal is sent also is received,
According to the monitoring information and progress chasing information generation monitoring information record, and it is uploaded to background monitoring platform.
In above-described embodiment, generated and supervised with reference to the monitoring information according to the progress chasing information that the dispatch terminal is sent
Measurement information records, including normal monitoring information record, early warning and monitoring information record and malfunction monitoring information record, and by the prison
Measurement information record is uploaded to background monitoring platform, is easy to back-stage management personnel to consult at any time.
In practice, the progress chasing information is sent by traffic department by dispatch terminal, the progress chasing packet
Processing progress, director's name, contact method and result etc. are included, is easy to management and monitoring shape of the backstage for power cable
Into the monitoring and tracking of completion.
Preferably as one embodiment of the present of invention, in the embodiment, methods described also includes：In preset time model
The interior early warning Frequency for being counted to the early warning and monitoring information, drawing power cable to be measured is enclosed, is sent out according to the early warning
Raw frequency judges reliability step and the preservation of power cable to be measured, is downloaded for background monitoring platform.
In above-described embodiment, by carrying out statistical analysis to the early warning and monitoring information, and power cable to be measured is drawn
Early warning Frequency, and judge according to the early warning Frequency reliability step of power cable to be measured, consequently facilitating backstage
Administrative staff assess the reliability of power cable to be measured, so as to be found in time when mile abnormality occurs in power cable, and pass through
Dispatch terminal notifies to investigate between attendant, it is ensured that power cable normal work.
Preferably as one embodiment of the present of invention, in the embodiment, methods described also includes：Every preset time
Interval counts to the malfunction monitoring information, draws the failure Frequency of power cable to be measured, is sent out according to the failure
Raw frequency judges fault level and the preservation of power cable to be measured, is downloaded for background monitoring platform.
In above-described embodiment, by being counted to the malfunction monitoring information, the failure hair of power cable to be measured is drawn
Raw frequency, the fault level of power cable to be measured is judged according to the failure Frequency, consequently facilitating back-stage management personnel couple
The failure of power cable is analyzed, and finds profound failure cause in time, and completes trouble hunting as early as possible, is reduced as far as possible
The probability that failure occurs again.
Preferably as one embodiment of the present of invention, as shown in figure 4, in the embodiment, methods described also includes：
S150, after the completion of maintenance, the feedback information that the dispatch terminal is sent is received, and judge according to the feedback information
Whether the monitoring information is accurate, and generates Surveillance according to judged result, and is uploaded to background monitoring platform.
In above-described embodiment, judge whether the monitoring information is accurate by the feedback information, be easy to find in time
Error existing for monitoring information or mistake, and notify attendant to be adjusted in time, avoid existing error or mistake
Monitoring information is made troubles to the monitoring of power cable, or even influences the normal work of power cable.
Above in association with Fig. 1 to Fig. 4, power cable fault monitoring method according to embodiments of the present invention is described in detail, under
Face combines Fig. 5-13, and power cable fault monitoring device according to embodiments of the present invention is described in detail.
Fig. 5 is a kind of power cable fault monitoring system Organization Chart provided in an embodiment of the present invention.It is specific as shown in figure 5,
The system architecture comprises at least：Front-end collection terminal, Internet of things system and dispatch terminal.
The front-end collection terminal includes the front-end collection terminal to parameters of electric power information described in each single item, for example voltage is adopted
Collect terminal, current acquisition terminal and temperature acquisition terminal, and every kind of front-end collection terminal is including multiple.In advance in cable under test
It is upper uniformly to mark some monitoring points at equal intervals, every kind of front-end collection terminal is separately positioned at the monitoring point, respectively
The parameters of electric power induction information for monitoring and pointing out is gathered, is then sent out the parameters of electric power induction information by Internet of things system
Background monitoring platform is delivered to, backstage monitoring platform described in background monitoring platform reads corresponding according to the parameters of electric power induction information
Parameters of electric power information, so can accurately obtain the parameters of electric power information of Electrical to be measured, and according to the parameters of electric power
Information judges it is that whether within a preset range, and according to the parameters of electric power information parameters of electric power information calculate parameters of electric power change
Rate, and monitoring information is generated, send to the dispatch terminal.
Wherein, Internet of things system includes Internet of things access equipment, Internet of Things InterWorking Equipment, Internet of Things safety means and Internet of Things
Net application server etc..Internet of things access equipment includes Internet of Things distance connection interface and Internet of Things local access interface, uses
In establishing exterior terminal by the Internet of Things distance connection interface and Internet of Things local access interface subsystem is serviced with Internet of Things
The connection of system.Internet of Things InterWorking Equipment, which includes, to be respectively used to answer with Internet of things access equipment, Internet of Things safety means, Internet of Things
The Internet of Things interconnecting interface connected with server and inside terminals, for providing the thing by the Internet of Things interconnecting interface
The interconnection of networking access device and the Internet of Things service subsystem.
Present specification will be described in detail the method flow performed by Internet of Things application server.In the embodiment, Internet of Things
Net application server is background monitoring platform, i.e. power cable fault monitoring device.Fig. 6 is one kind provided in an embodiment of the present invention
Car accident Quick rescue apparatus structure schematic diagram.As shown in fig. 6, the device includes：Acquiring unit, processing unit and transmission are single
Member.
Acquiring unit, obtains the parameters of electric power information of power cable to be measured, and the parameters of electric power information includes voltage, electric current
And temperature；
In practice, the parameters of electric power induction information that the acquiring unit receiving front-end acquisition terminal is sent, and according to described
Parameters of electric power information corresponding to the reading of parameters of electric power induction information, it so can accurately obtain the parameters of electric power of Electrical to be measured
Information.
It should be noted that in practice, the parameters of electric power information at the monitoring point is obtained at interval of preset time, is passed through
The adjacent parameters of electric power information obtained twice judges parameters of electric power rate of change.
In addition, parameters of electric power information includes voltage, electric current and temperature, the call parameter of voltage and electric power as cable work
Have to be monitored, the normal operating conditions of power cable can be reflected by voltage and electric power, meanwhile, can by temperature
With the reliability of auxiliary detection power cable, because power cable can generate heat when being powered, when power cable failure, such as
When short-circuit, great change can occur for the temperature of power cable, so, by the change of electric current and temperature, may further determine that electric power
The fault state of cable.Certainly, also other malfunctions, are not enumerated here.
Preferably as one embodiment of the present of invention, as shown in fig. 7, described device also includes correction unit, for adopting
Collect ambient parameter information, according to the ambient parameter information build environment correction factor, and according to the environmental correction factor pair
Whether the parameters of electric power information is corrected, judge it in preset range further according to the parameters of electric power information after correction
It is interior.
In above-described embodiment, by collecting ambient parameter information, according to the ambient parameter information build environment correction factor,
And the parameters of electric power information according to the environmental correction factor pair is corrected, can correct electric caused by environmental factor
Force parameter changes, such as influence of the environment temperature to Temperature of Power Cables, influence of the sleety weather to power cable Current Voltage,
Parameters of electric power information when reflecting power cable itself work so that the parameters of electric power after corrected is tried one's best, so passes through school
Parameters of electric power information can after just more accurately judges whether power cable breaks down or abnormal.
Processing unit, in the monitoring cycle of setting, if the parameters of electric power information is within a preset range, root
Parameters of electric power rate of change is calculated according to the parameters of electric power information, and monitoring information, institute are generated according to the parameters of electric power rate of change
State the excursion of parameters of electric power when preset range is power cable normal work to be measured.
It is pointed out here that after the processing unit reads parameters of electric power information, the parameters of electric power is first determined whether
Within a preset range whether information, corresponding beyond preset range with following parameters of electric power information, if the parameters of electric power
Information within a preset range, then shows that the parameters of electric power of power cable is normal in itself, and this is the premise of power cable normal work
Condition.
Especially, in the present embodiment, the monitoring cycle is equal with the collection period at the monitoring point, and keeps one
Cause, i.e., often detect a collection period and a parameters of electric power information is gathered at the monitoring point, and in each monitoring cycle knot
The parameters of electric power information of collection is sent to the backstage monitoring platform after beam, by the backstage monitoring platform come according to the electricity
Force parameter information finally gives monitoring information.
Transmitting element, for the monitoring information to be sent to dispatch terminal.
Here, traffic department receives monitoring information according to by dispatch terminal, and arranges maintenance work according to monitoring information
Scheduling and deployment, can thus realize remote monitoring and the maintenance to power cable, it is ensured that power cable normal work.
The power cable fault monitoring device of the present invention, by after the parameters of electric power information of power cable to be measured is obtained,
Parameters of electric power rate of change is calculated according to the parameters of electric power information, and monitoring information is generated according to the parameters of electric power rate of change,
Finally detection information is sent to dispatch terminal, without sending testing staff to be detected in real time till now, and by long-range right
The parameters of electric power rate of change of power cable can be monitored effectively to potential the being predicted property of failure risk of power cable, be known in advance
The failure that dawn power cable may occur, is easy to power department to take measures in advance, reduces the inconvenience brought to user as far as possible,
And reduce the loss to caused by economy.
Preferably as one embodiment of the present of invention, as shown in figure 8, the processing unit includes mathematic interpolation list
Member, ratio calculation subelement and comparing subunit.
Mathematic interpolation subelement, for calculating the difference between the two neighboring parameters of electric power information；
During power cable normal work, the parameters of electric power information can fluctuate in certain scope, adjacent by calculating
Difference between two parameters of electric power information, parameters of electric power fluctuation situation during power cable work can be reflected, this
On the one hand sample can be used as assesses the whether normal most direct basis of parameters of electric power, on the other hand, can also be according to the electric power
Difference between the two neighboring parameters of electric power information of parameter reflects parameters of electric power rate of change, and this can be used as analysis electric power
Cable whether there is the important evidence of incipient fault hidden danger, will specifically be described in detail below.
Ratio calculation subelement, for calculating the difference between the two neighboring parameters of electric power information and preset standard electricity
The ratio of force parameter value, obtain the parameters of electric power rate of change；
Here, the difference between the two neighboring parameters of electric power information can reflect the absolute change of power cable parameter
Change situation, in practice, the power cable of different stage, its parameters of electric power information in itself may be bigger, and can allow for
Fluctuation range it is also relatively large, so, by calculating the difference between the two neighboring parameters of electric power information and pre- bidding
The ratio of quasi- parameters of electric power value, you can reflect the situation of change relative to the power cable for carrying out rank, that is, pass through parameters of electric power
The relative change of information can more accurately reflect the situation of change of parameters of electric power.
It is pointed out that the preset standard parameters of electric power information needs to be set according to the rank of power cable to be measured
It is fixed, for example, 110KV power cable, it is necessary to reference to the rank power cable normal work when parameters of electric power set.
Comparing subunit, for by the parameters of electric power rate of change compared with default parameters of electric power excursion, and
The monitoring information is generated according to the comparative result.
In fact, during normal work, the parameters of electric power rate of change of the power cable can be smaller, past when a failure occurs
Toward can be along with the mutation of parameters of electric power, and parameters of electric power rate of change can be bigger, commonly greater than 1, so by the electric power
Parameter change rate changes compared with presetting parameters of electric power rate of change scope with default parameters of electric power, can pass through monitoring information
Reflect the work state information of power cable, be easy to traffic department to track and handle in time.
Preferably as in one embodiment of the present of invention, in the embodiment, the comparing subunit is specifically used for：
Preset when the parameters of electric power rate of change is constant first in the range of parameters of electric power rate of change, then judge power cable
Normally, and according to the parameters of electric power rate of change normal monitoring information is generated；
Here, the described first default parameters of electric power rate of change scope is when being redefined for power cable normal work to be measured
Fluctuation range, so when the parameters of electric power rate of change it is constant in the range of the described first default parameters of electric power rate of change when,
It may determine that power cable is working properly, otherwise, power cable breaks down or in the presence of the hidden danger to break down.
When the parameters of electric power rate of change exceedes the described first default parameters of electric power rate of change scope, and the parameters of electric power
Potential safety hazard be present positioned at the described second default parameters of electric power rate of change scope, then judgement power cable in rate of change, and according to institute
State parameters of electric power rate of change generation early warning and monitoring information；Wherein, on the section of the described first default parameters of electric power rate of change scope
Limit is less than the interval limit of the described second default parameters of electric power rate of change scope.
It is pointed out that the described here first default parameters of electric power rate of change scope and the second default parameters of electric power change
Section between rate scope is the critical range that power cable breaks down, although its surface power cable is still within work
In, but it shows that power cable is both not at normal operating conditions, nor malfunction is in, between normal condition and failure
Between state, so, such a state can reflect that power cable has the hidden danger to break down, i.e., subsequent power cable
It is likely to break down, so by early warning and monitoring information traffic department's power cable can be reminded the hidden of failure to be present
Suffer from, it is necessary to attendant's timely processing, avoid due to can the phase fault impact cable normal work, reduce what is brought to user
Inconvenience, and reduce economic loss.
Parameters of electric power rate of change scope is preset when the parameters of electric power rate of change exceedes described second, then judges power cable
Break down, and malfunction monitoring information is generated according to the parameters of electric power rate of change.
In practice, fluctuation range during power cable fault work to be measured is preset, then, when the electric power of power cable
When parameter change rate is more than the second default parameters of electric power rate of change scope, indicate that failure, such as electric current occurs in power cable
Increase, voltage are zero etc. suddenly suddenly, in this case, can stop traffic department in time by the malfunction monitoring information
Take immediate steps, arrange attendant to recover the normal work of power cable as early as possible.
Preferably as one embodiment of the present of invention, on the basis of the embodiment shown in Fig. 8, as shown in figure 9, should
In embodiment, background monitoring platform also interconnects with responding agencies application server, after malfunction monitoring information is generated, also by failure
Information, which is sent, to above-mentioned responding agencies application server, is easy to responding agencies to coordinate the failure problems for solving power cable in time.
Preferably as one embodiment of the present of invention, in the embodiment, the processing unit is additionally operable to the prison in setting
Survey in the cycle, the parameters of electric power information exceeds preset range, then judges that power cable breaks down, and join according to the electric power
Number information generation malfunction monitoring information.
Such case and parameters of electric power information above are corresponding in preset range, if the parameters of electric power information exceeds
Preset range, then show that exception occurs in itself in the parameters of electric power of power cable, at this moment the precondition of power cable normal work
Do not possess, it is necessary to directly take measures, for example cut off circuit, it is ensured that the installations and facilities in power cable and circuit are further
Suffer damage.
Such case is relatively directly perceived, typically by power cable parameter information in itself it may determine that, without sentencing again
Force parameter rate of change is powered off, and now, can directly be reflected according to the failure parameters of electric power information that the parameters of electric power generates
Go out parameters of electric power information and exceed preset range.
Preferably as one embodiment of the present of invention, as shown in Figure 10, on the basis of embodiment illustrated in fig. 7, the reality
Apply in example, described device also includes progress chasing unit, for after monitoring information to the dispatch terminal is sent, described in reception
The progress chasing information that dispatch terminal is sent, given birth to according to the monitoring information that the processing unit generates and the progress chasing information
Recorded into monitoring information, and be uploaded to background monitoring platform.
In above-described embodiment, generated and supervised with reference to the monitoring information according to the progress chasing information that the dispatch terminal is sent
Measurement information records, including normal monitoring information record, early warning and monitoring information record and malfunction monitoring information record, and by the prison
Measurement information record is uploaded to background monitoring platform, is easy to back-stage management personnel to consult at any time.
In practice, the progress chasing information is sent by traffic department by dispatch terminal, the progress chasing packet
Processing progress, result, monitoring information accuracy etc. are included, is easy to management and monitoring of the backstage for power cable to be formed and completes
Monitoring and tracking.
, as shown in figure 11, should on the basis of embodiment illustrated in fig. 10 preferably as one embodiment of the present of invention
In embodiment, described device also includes the first statistic unit, for entering in preset time range to the early warning and monitoring information
Row statistics, draws the early warning Frequency of power cable to be measured, judges power cable to be measured according to the early warning Frequency
Reliability step simultaneously preserves, and is downloaded for background monitoring platform.
In above-described embodiment, by carrying out statistical analysis to the early warning and monitoring information, and power cable to be measured is drawn
Early warning Frequency, and judge according to the early warning Frequency reliability step of power cable to be measured, consequently facilitating backstage
Administrative staff assess the reliability of power cable to be measured, so as to be found in time when mile abnormality occurs in power cable, and pass through
Dispatch terminal notifies to investigate between attendant, it is ensured that power cable normal work.
, as shown in figure 12, should on the basis of embodiment illustrated in fig. 11 preferably as one embodiment of the present of invention
In embodiment, described device also includes the second statistic unit, for entering every prefixed time interval to the malfunction monitoring information
Row statistics, draws the failure Frequency of power cable to be measured, judges power cable to be measured according to the failure Frequency
Fault level simultaneously preserves, and is downloaded for background monitoring platform.
In above-described embodiment, by being counted to the malfunction monitoring information, the failure hair of power cable to be measured is drawn
Raw frequency, the fault level of power cable to be measured is judged according to the failure Frequency, consequently facilitating back-stage management personnel couple
The failure of power cable is analyzed, and finds profound failure cause in time, and completes trouble hunting as early as possible, is reduced as far as possible
The probability that failure occurs again.
, as shown in figure 13, should on the basis of embodiment illustrated in fig. 12 preferably as one embodiment of the present of invention
In embodiment, described device also includes verification unit, the feedback letter sent for after the completion of maintenance, receiving the dispatch terminal
Breath, and judge whether the monitoring information is accurate according to the feedback information, and according to judged result generation Surveillance, and on
Reach background monitoring platform.
In above-described embodiment, judge whether the monitoring information is accurate by the feedback information, be easy to find in time
Error existing for monitoring information or mistake, and notify attendant to be adjusted in time, avoid existing error or mistake
Monitoring information is made troubles to the monitoring of power cable, or even influences the normal work of power cable.
Reader should be understood that in the description of this specification, reference term " one embodiment ", " some embodiments ", " show
The description of example ", " specific example " or " some examples " etc. mean to combine the specific features of the embodiment or example description, structure,
Material or feature are contained at least one embodiment or example of the present invention.In this manual, above-mentioned term is shown
The statement of meaning property need not be directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description
It can be combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this
The technical staff in field can be by the different embodiments or example described in this specification and the spy of different embodiments or example
Sign is combined and combined.
It is apparent to those skilled in the art that for convenience of description and succinctly, the dress of foregoing description
The specific work process with unit is put, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected to realize the mesh of scheme of the embodiment of the present invention according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
It is that unit is individually physically present or two or more units are integrated in a unit.It is above-mentioned integrated
Unit can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can
To be stored in a computer read/write memory medium.Based on such understanding, technical scheme substantially or
Say that the part to be contributed to prior art, or all or part of the technical scheme can be embodied in the form of software product
Out, the computer software product is stored in a storage medium, including some instructions are causing a computer equipment
(can be personal computer, server, or network equipment etc.) performs all or part of each embodiment method of the present invention
Step.And foregoing storage medium includes：It is USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), random
Access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with Jie of store program codes
Matter.
More than, it is only embodiment of the invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art the invention discloses technical scope in, various equivalent modifications or substitutions can be readily occurred in,
These modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
The protection domain asked is defined.
Claims (10)
1. a kind of power cable fault monitoring method, it is characterised in that methods described includes：
Obtain the parameters of electric power information of power cable to be measured；
In the monitoring cycle of setting, if the parameters of electric power information is within a preset range, believed according to the parameters of electric power
Breath calculates parameters of electric power rate of change, and generates monitoring information according to the parameters of electric power rate of change, and the preset range is to be measured
The excursion of parameters of electric power during power cable normal work；
The monitoring information is sent to dispatch terminal.
2. power cable fault monitoring method according to claim 1, it is characterised in that the generation monitoring information bag
Include：
Calculate the difference between the two neighboring parameters of electric power information；
The ratio of the difference and preset standard parameters of electric power value between the two neighboring parameters of electric power information is calculated, is obtained described
Parameters of electric power rate of change；
By the parameters of electric power rate of change compared with default parameters of electric power rate of change scope, and given birth to according to the comparative result
Into the monitoring information.
3. power cable fault monitoring method according to claim 2, it is characterised in that generated according to the comparative result
The monitoring information includes：
Preset when the parameters of electric power rate of change is constant first in the range of parameters of electric power rate of change, then judging power cable just
Often, and according to the parameters of electric power rate of change normal monitoring information is generated；
When the parameters of electric power rate of change exceedes the described first default parameters of electric power rate of change scope, and parameters of electric power change
Potential safety hazard be present positioned at the described second default parameters of electric power rate of change scope, then judgement power cable in rate, and according to the electricity
Force parameter rate of change generates early warning and monitoring information；
When the parameters of electric power rate of change exceedes the described second default parameters of electric power rate of change scope, then judgement power cable occurs
Failure, and malfunction monitoring information is generated according to the parameters of electric power rate of change；
Wherein, the section upper limit of the described first default parameters of electric power rate of change scope is less than the described second default parameters of electric power change
The interval limit of rate scope.
4. power cable fault monitoring method according to claim 1, it is characterised in that methods described also includes：When
In the monitoring cycle of setting, the parameters of electric power information exceeds preset range, then judges that power cable breaks down, and according to institute
State parameters of electric power information generation malfunction monitoring information.
5. the power cable fault monitoring method according to any one of Claims 1-4, it is characterised in that methods described is also
Including：After monitoring information to dispatch terminal is sent, the tracking progress msg that the dispatch terminal is sent also is received, according to described
Monitoring information and the tracking progress msg generation monitoring information record, and it is uploaded to background monitoring platform.
6. a kind of power cable fault detection means, it is characterised in that described device includes：
Acquiring unit, for obtaining the parameters of electric power information of power cable to be measured；
Processing unit, in the monitoring cycle of setting, if the parameters of electric power information is within a preset range, according to institute
State parameters of electric power information and calculate parameters of electric power rate of change, and monitoring information is generated according to the parameters of electric power rate of change, it is described pre-
The excursion of parameters of electric power when if scope is power cable normal work to be measured；
Transmitting element, for the monitoring information to be sent to dispatch terminal.
7. power cable fault monitoring device according to claim 6, it is characterised in that the processing unit is specifically used
In：
Calculate the difference between the two neighboring parameters of electric power information；
The ratio of the difference and preset standard parameters of electric power value between the two neighboring parameters of electric power information is calculated, is obtained described
Parameters of electric power rate of change；
By the parameters of electric power rate of change compared with default parameters of electric power rate of change scope, and given birth to according to the comparative result
Into the monitoring information.
8. power cable fault monitoring device according to claim 7, it is characterised in that the processing unit is specifically also used
In：
Preset when the parameters of electric power rate of change is constant first in the range of parameters of electric power rate of change, then judging power cable just
Often, and according to the parameters of electric power rate of change normal monitoring information is generated；
When the parameters of electric power rate of change exceedes the described first default parameters of electric power rate of change scope, and parameters of electric power change
Potential safety hazard be present positioned at the described second default parameters of electric power rate of change scope, then judgement power cable in rate, and according to the electricity
Force parameter rate of change generates early warning and monitoring information；
When the parameters of electric power rate of change exceedes the described second default parameters of electric power rate of change scope, then judgement power cable occurs
Failure, and malfunction monitoring information is generated according to the parameters of electric power rate of change；
Wherein, the section upper limit of the described first default parameters of electric power rate of change scope is less than the described second default parameters of electric power change
The interval limit of rate scope.
9. power cable fault monitoring device according to claim 6, it is characterised in that the processing unit is also specifically used
In：When in the monitoring cycle in setting, the parameters of electric power information exceeds preset range, then judgement power cable breaks down,
And malfunction monitoring information is generated according to the parameters of electric power information.
10. the power cable fault monitoring device according to any one of claim 6 to 9, it is characterised in that described device is also
Including tracking cell, for after the processing unit generates monitoring information, receiving the feedback information that the dispatch terminal is sent,
According to the monitoring information that the processing unit generates and feedback information generation monitoring information record, and it is uploaded to background monitoring
Platform.
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| CN201710487063.8A CN107390049A (en) | 2017-06-23 | 2017-06-23 | A kind of power cable fault monitoring method and device |
| PCT/CN2017/097985 WO2018232937A1 (en) | 2017-06-23 | 2017-08-18 | Electric power cable fault monitoring method and apparatus |
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| CN201710487063.8A CN107390049A (en) | 2017-06-23 | 2017-06-23 | A kind of power cable fault monitoring method and device |
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