CN108279334A - Monitoring method and device, system - Google Patents
Monitoring method and device, system Download PDFInfo
- Publication number
- CN108279334A CN108279334A CN201711499250.4A CN201711499250A CN108279334A CN 108279334 A CN108279334 A CN 108279334A CN 201711499250 A CN201711499250 A CN 201711499250A CN 108279334 A CN108279334 A CN 108279334A
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- capacitance
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- target object
- metal polar
- monitoring device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2605—Measuring capacitance
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention discloses a kind of monitoring method and device, systems.Wherein, this method includes：Obtain after target object falls into specified gap the first capacitance and target object do not fall within specified gap when the second capacitance, wherein gap of the specified gap at least two metal polar plates between, at least two metal polar plates composition capacitor；Stacking states of the target object in gap are obtained according to the first capacitance and the second capacitance.The present invention solves the technical issues of floc sedimentation that floats in the prior art can not be found and be handled to endanger power grid security in time.
Description
Technical field
The present invention relates to high pressure fields, in particular to a kind of monitoring method and device, system.
Background technology
Annual spring, the plants such as willow, willow largely discharge the wadding object that floats, these wadding objects that float are light-weight, small, can pass through
The ventilation opening or shutter of high-tension apparatus room get in battery limits, are easy to assemble indoors agglomerating.Float wadding object it is main at
It is divided into cellulose, there is very strong water imbibition.When air humidity increases, the pockets of wadding that floats absorbs moisture from air, insulate
Ability declines to a great extent.When the pockets of wadding that floats is close to equipment outer insulation, flashover may be caused.Especially for vertical set through walls
Pipe, if float wadding vicinity accumulation it is agglomerating do not cleared up in time, may cause flashover cause casing damage, equipment have a power failure.
Currently, substation's attended mode is generally unmanned, manual patrol is relied primarily on to the monitoring for the wadding that floats to realize,
There has been no the systems monitored on-line for the wadding object that floats.It is according to substation in electricity that the frequency of manual patrol, which is according to substation,
Significance level in net is come what is arranged, and the important substation inspection frequency is more, and the unessential substation inspection frequency is few, this just leads
Some floc sedimentations that float that may jeopardize equipment outer insulation are caused not found and be handled in time, to endanger power grid security.
The problem of floc sedimentation that floats in for the above-mentioned prior art can not be found and be handled to endanger power grid security in time, mesh
It is preceding not yet to propose effective solution scheme.
Invention content
An embodiment of the present invention provides a kind of monitoring method and device, systems, at least to solve the floc sedimentation that floats in the prior art
The technical issues of can not being found and being handled to endanger power grid security in time.
One side according to the ... of the embodiment of the present invention provides a kind of monitoring device, including：Harvester, including at least
Two metal polar plates have gap between at least two metal polar plates, and at least two metal polar plates form capacitor；Measure mould
Block is of coupled connections with harvester, is not fallen within for measuring the first capacitance that target object is fallen into behind gap and target object
The second capacitance when gap；Controller, for determining target object in gap according to the first capacitance and the second capacitance
Stacking states.
Optionally, at least two metal polar plates are to be spaced apart in the same plane.
Optionally, at least two metal polar plates are arranged in parallel, also, the capacitance of the composition of at least two metal polar plates
One end is provided for the opening for making target object fall into, and the other end is provided with the closed plate left for stopping target object.
Optionally, closed plate includes：Platy structure made of insulating materials.
Optionally, at least two metal polar plates are the cylindrical structure of concentric, and gap is between at least two metal polar plates
Annular region.
Optionally, controller is additionally operable to determine the first dielectric constant and the second capacitance pair corresponding to the first capacitance
The second dielectric constant answered；Difference according to the first dielectric constant and the second dielectric constant determines heap of the target object in gap
Cumuliformis state.
Optionally, further include：Communication module, for the first capacitance and the second capacitance to be sent to remote equipment；Or
Difference is sent to remote equipment by person.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of monitoring system, including：Monitoring device includes：It adopts
Acquisition means, including at least two metal polar plates have gap, and at least two metal polar plate groups between at least two metal polar plates
At capacitance；Measurement module is of coupled connections with harvester, and the first capacitance behind gap and mesh are fallen into for measuring target object
Mark object does not fall within the second capacitance when gap；Communication module, for the first capacitance and the second capacitance to be sent to far
End equipment；Remote equipment, for determining stacking states of the target object in gap according to the first capacitance and the second capacitance.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of monitoring method, including：Acquisition is fallen in target object
Enter the first capacitance after specified gap and the second capacitance when target object does not fall within specified gap, wherein specified gap
For the gap between at least two metal polar plates, at least two metal polar plates form capacitor；According to the first capacitance and second
Capacitance obtains stacking states of the target object in gap.
Optionally, after obtaining stacking states of the target object in gap according to the first capacitance and the second capacitance,
Method further includes：First capacitance and the second capacitance are sent to remote equipment；Remote equipment is received according to the first capacitance
The stacking states determined with the second capacitance.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of storage medium, which is characterized in that storage medium packet
Include the program of storage, wherein equipment executes above-mentioned monitoring method where controlling storage medium when program is run.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of processor, which is characterized in that processor is for transporting
Line program, wherein program executes above-mentioned monitoring method when running.
In embodiments of the present invention, by obtaining the first capacitance and target pair after target object falls into specified gap
As not falling within the second capacitance when specified gap, wherein gap of the specified gap between at least two metal polar plates, at least
Two metal polar plates form capacitor；Heaped-up of the target object in gap is obtained according to the first capacitance and the second capacitance
State has achieved the purpose that the monitoring to the wadding object that floats, to realize the insulation flashover accident that the wadding object that avoids floaing accumulates agglomerating initiation
Technique effect, and then solve the floc sedimentation that floats in the prior art and can not be found in time and handle to endanger the skill of power grid security
Art problem.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 a are a kind of structure charts of monitoring device according to the ... of the embodiment of the present invention；
Fig. 1 b are the structure charts of another monitoring device according to the ... of the embodiment of the present invention；
Fig. 2 is a kind of optionally harvester schematic diagram according to the ... of the embodiment of the present invention；
Fig. 3 is another optionally harvester schematic diagram according to the ... of the embodiment of the present invention；
Fig. 4 is another optionally harvester schematic diagram according to the ... of the embodiment of the present invention；
Fig. 5 is the schematic diagram of a kind of optionally harvester and measurement module according to the ... of the embodiment of the present invention；
Fig. 6 is the pin definition of optionally measurement module AD7746 according to the ... of the embodiment of the present invention a kind of and its substantially peripheral
Circuit diagram；
Fig. 7 is that a kind of optionally operation according to the ... of the embodiment of the present invention and control module STC89C516 microcontroller pins are fixed
Justice and its peripheral circuit schematic diagram；
Fig. 8 is MAX485 serial communication chips used in a kind of optionally communication module according to the ... of the embodiment of the present invention
Pin defines and its peripheral circuit schematic diagram；
Fig. 9 is a kind of optionally measurement module AD7746, operation and control module according to the ... of the embodiment of the present invention
Connection type between STC89C516 and communication module MAX485 chips；
Figure 10 is singlechip main program flow diagram in embodiment；
Figure 11 is the flow diagram of singlechip interruption service subprogram in embodiment；
Figure 12 is a kind of structure chart of monitoring system according to the ... of the embodiment of the present invention；And
Figure 13 is a kind of flow chart of monitoring method according to the ... of the embodiment of the present invention.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of monitoring device embodiment, Fig. 1 a monitorings according to the ... of the embodiment of the present invention are provided
Device, as shown in Figure 1a, which includes：
Harvester 10, including at least two metal polar plates have gap, and at least two between at least two metal polar plates
A metal polar plate forms capacitor；
Optionally, at least two metal polar plates are to be spaced apart in the same plane, as shown in Figure 2.
Optionally, at least two metal polar plates are arranged in parallel, also, the capacitance of the composition of at least two metal polar plates
One end is provided for the opening for making target object fall into, and the other end is provided with the closed plate left for stopping target object,
Wherein, closed plate includes：Platy structure made of insulating materials, as shown in Figure 3.
Optionally, at least two metal polar plates are the cylindrical structure of concentric, and gap is between at least two metal polar plates
Annular region, as shown in figure 4, specifically, annular region compared to cuboid or cube, the wadding object that floats be easy it is hindered not
Easily movement, that is, the wadding object that floats are not easy to leave the capacitor of above-mentioned concentric cylindrical structure.
Measurement module 12, is of coupled connections with harvester, for measuring the first capacitance after target object falls into gap
The second capacitance when gap is not fallen with target object；
Optionally, by taking harvester shown in Fig. 2 as an example, the connection type of measurement module is as shown in Figure 5.
A kind of optional measurement module 12 is provided in the embodiment of the present application, but not limited to this：Measurement module 12 can be selected
The capacitance conversion chip AD7746 of ADI companies, as shown in fig. 6, Fig. 6 is that optionally measurement module uses capacitance conversion chip to one kind
The pin of AD7746 defines and its basic peripheral circuit schematic diagram, which has 24 bit resolutions, and number of significant digit is up to 21, line
Property degree be better than 0.01%, precision is up to 4 × 10-12F.In the embodiment of the present application, electricity caused by the wadding object that floats is fallen on a sensor
Appearance variable quantity is the 10-9F orders of magnitude, selects AD7746 chips that can meet the essence measured to the wadding object sensor small capacitance that floats
Degree requires, and AD7746 realizes that I2C buses include serial data end with operation and the communication of control module 3 by I2C bus modes
SDA and serial clock terminal SCL connects the pull-up resistor of 10K, the pin 2 of AD7746 respectivelyAs external interrupt, connection
To the ends P3.2/INT0 of microcontroller, when pin 2Indicate that the conversion of capacitance channel has been completed when there is failing edge, monolithic
Machine can read the capacitance measured.
Controller 14, for determining heaped-up of the target object in gap according to the first capacitance and the second capacitance
State.
Optionally, controller 14 are additionally operable to determine the first dielectric constant and the second capacitance corresponding to the first capacitance
Corresponding second dielectric constant；Difference according to the first dielectric constant and the second dielectric constant determines target object in gap
Stacking states.
Optionally, controller 14 can be used as operation and control module, and the operation and control module are using macrocrystalline company
Strong MCU STC89C516, as shown in fig. 7, Fig. 7 is a kind of optionally operation and the STC89C516 that control module uses
Microcontroller pin defines and its peripheral circuit, which is CMOS processors, possesses and may be programmed Flash storages in 64KB pieces
The RAM of device, 1280 bytes has 3 timers in piece, possesses full-duplex serial interface, there is hardware watchdog circuit in piece, supports
I2C buses.The ends SDA of AD7746 chips are connected respectively to the ends P2.0 and P2.1 of microcontroller with the ends SCL.AD7746 chips are to adopting
The capacitance of acquisition means measures, that microcontroller is read the result is that a string of binary digits.According to AD7746 databooks and
Schematic diagram can export the formula for calculating harvester capacitance.
Relationship between input value and output valve is：C in formulain
For the testing capacitance value (unit for the wadding object sensor that floats:PF), CoutPass through transformed output valve (unit for testing capacitance:PF),
Code is that chip carries out the transformed binary codings of A/D to capacitance to be measured, and CAPDAC is that compensating electric capacity is posted in AD7746 pieces
The value of storage CAPDAC.
In operation and control module, the program of microcontroller STC89C516, which is adopted, to be shown a C language, and main program flow is as schemed
Shown in 10.Main program completes the initialization of system, includes initialization, the AD7746 cores of I2C bus initializations, serial port of single chip computer
Data ready mark is inquired in the initialization of piece register repeatedly later, if data ready, reads capacitance and comprehensive capacitance
Size and its variation tendency judgement float wadding object accumulation situation, call serial ports send function send as a result, the ready mark that clears data
Will returns continue to inquire data ready mark later；Continue to inquire data ready mark if data are not ready, until AD7746
Chip triggers external interrupt.
Interrupt service subroutine flow is as shown in figure 11.Interrupt routine completes the reading to AD7746 chip measurement results,
And calculate to float in real time and the corresponding capacitance of wadding object sensor and store, then data ready mark is set, main program is returned.
Optionally, monitoring device further includes communication module 16, and Fig. 1 b are the structure charts of another monitoring device, such as Fig. 1 b institutes
Show, communication module 16 is used to the first capacitance and the second capacitance being sent to remote equipment；Alternatively, difference is sent to distal end
Equipment.
A kind of optional communication module 16 is provided in the embodiment of the present application, but not limited to this：Communication module 16 uses
MAX485 chips, as shown in figure 8, Fig. 8 is the pin definition of MAX485 serial communication chips used in communication module and its outer
Circuit is enclosed, the P3.0/RxD terminals and P3.1/TxD terminals of microcontroller are separately connected the pin 1 and pin 4 of MAX485 chips,
The A terminals and B terminals of MAX485 chips are connected to the public measurement and control unit of substation, to realize monitoring data remotely into monitoring
The heart transmits.
It is each in a kind of optionally monitoring device of the embodiment of the present application offer according to selected device in the above alternative embodiment
Connection type between a component, as shown in Figure 9.
Embodiment 2
According to embodiments of the present invention, a kind of monitoring system embodiment is provided, as shown in figure 12, including：Monitoring device 20
With remote equipment 22；Wherein,
Monitoring device 20 includes：Harvester 10, including at least two metal polar plates have between at least two metal polar plates
There is gap, and at least two metal polar plates form capacitance；Measurement module 12 is of coupled connections with harvester 10, for measuring mesh
The first capacitance and target object that mark object is fallen into behind gap do not fall within the second capacitance when gap；Communication module 16 is used
In the first capacitance and the second capacitance are sent to remote equipment；
Remote equipment 22, for determining heaped-up of the target object in gap according to the first capacitance and the second capacitance
State.
Embodiment 3
According to embodiments of the present invention, a kind of monitoring method embodiment is provided, it should be noted that in the flow chart of attached drawing
The step of showing can execute in the computer system of such as a group of computer-executable instructions, although also, in flow chart
In show logical order, but in some cases, can be to execute shown or described step different from sequence herein
Suddenly.
Figure 13 is monitoring method according to the ... of the embodiment of the present invention, and as shown in figure 13, this method comprises the following steps：
Step S1302, obtains the first capacitance after target object falls into specified gap and target object does not fall within finger
The second capacitance when fixed gap, wherein gap of the specified gap between at least two metal polar plates, at least two metal poles
Board group is at capacitor
Step S1304 obtains stacking states of the target object in gap according to the first capacitance and the second capacitance.
Through the above steps, it may be implemented, to the real time on-line monitoring for the wadding object that floats, to eliminate the reliance on manual patrol；On-line monitoring
As a result can remote transmission to monitoring center, in order to Centralized Monitoring management；To floaing, wadding object accumulation situation uses measured value and measurement
The a variety of criterions such as the variation tendency of value carry out comprehensive descisions, and accuracy is high, can be directed in time and accumulate the serious wadding object that floats to power transformation
The staff that stands sends out alarm, and the wadding object that effectively avoids floaing accumulates the insulation flashover accident of agglomerating initiation.
The embodiments of the present invention are for illustration only, can not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of monitoring device, which is characterized in that including：
Harvester, including at least two metal polar plates, have gap between at least two metal polar plate, and it is described at least
Two metal polar plates form capacitor；
Measurement module is of coupled connections with the harvester, for measuring the first capacitance after target object falls into the gap
Value and the target object do not fall within the second capacitance when the gap；
Controller, for determining the heap of the target object in the gap according to first capacitance and the second capacitance
Cumuliformis state.
2. monitoring device according to claim 1, which is characterized in that at least two metal polar plate is in same plane
Inside it is spaced apart.
3. monitoring device according to claim 1, which is characterized in that at least two metal polar plate, which is mutually parallel, to be set
It sets, also, capacitance one end of the composition of at least two metal polar plate opening of being provided for the target object is made to fall into
Mouthful, the other end is provided with the closed plate left for stopping the target object.
4. monitoring device according to claim 3, which is characterized in that the closed plate includes：Plate made of insulating materials
Shape structure.
5. monitoring device according to claim 1, which is characterized in that at least two metal polar plate is the circle of concentric
Barrel structure, annular region of the gap between at least two metal polar plate.
6. monitoring device according to claim 1, which is characterized in that the controller is additionally operable to determine first electricity
Corresponding second dielectric constant of the first dielectric constant and the second capacitance corresponding to capacitance；According to first dielectric constant and
The difference of second dielectric constant determines the stacking states of the target object in the gap.
7. monitoring device according to claim 6, which is characterized in that further include：
Communication module, for first capacitance and the second capacitance to be sent to remote equipment；Alternatively, the difference is sent out
It send to the remote equipment.
8. a kind of monitoring system, which is characterized in that including：Monitoring device and remote equipment；Wherein,
The monitoring device includes：Harvester, including at least two metal polar plates have between at least two metal polar plate
There is gap, and at least two metal polar plate forms capacitance；Measurement module is of coupled connections with the harvester, for surveying
The first capacitance and the target object that amount target object is fallen into behind the gap do not fall within the second capacitance when the gap
Value；Communication module, for first capacitance and the second capacitance to be sent to the remote equipment；
The remote equipment, for determining the target object in the gap according to first capacitance and the second capacitance
In stacking states.
9. a kind of monitoring method, which is characterized in that including：
It obtains the first capacitance after target object falls into specified gap and the target object does not fall within the specified gap
When the second capacitance, wherein gap of the specified gap between at least two metal polar plates, at least two metal
Pole plate forms capacitor；
The stacking states of the target object in the gap are obtained according to first capacitance and the second capacitance.
10. according to the method described in claim 9, it is characterized in that, being obtained according to first capacitance and the second capacitance
After the stacking states of the target object in the gap, the method further includes：
First capacitance and the second capacitance are sent to remote equipment；
Receive the stacking states that the remote equipment is determined according to first capacitance and the second capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499250.4A CN108279334A (en) | 2017-12-29 | 2017-12-29 | Monitoring method and device, system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711499250.4A CN108279334A (en) | 2017-12-29 | 2017-12-29 | Monitoring method and device, system |
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| CN108279334A true CN108279334A (en) | 2018-07-13 |
Family
ID=62802993
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Application publication date: 20180713 |