CN107727703A - A kind of atmospheric corrosion monitoring system and its monitoring method - Google Patents
A kind of atmospheric corrosion monitoring system and its monitoring method Download PDFInfo
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- CN107727703A CN107727703A CN201710819468.7A CN201710819468A CN107727703A CN 107727703 A CN107727703 A CN 107727703A CN 201710819468 A CN201710819468 A CN 201710819468A CN 107727703 A CN107727703 A CN 107727703A
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Abstract
The present invention discloses a kind of atmospheric corrosion monitoring system and its monitoring method, is related to atmospheric corrosion monitoring technical field, for improving the sample precision of atmospheric corrosion data.The atmospheric corrosion monitoring system includes being used for the electrochemical probe for obtaining atmospheric corrosion electric current, for atmospheric corrosion electric current to be converted into the current sensor of digital voltage signal, and the data processing unit for reception processing digital voltage signal；Wherein, current sensor includes the more gear sampling resistor modules being connected with electrochemical probe, and the signal amplifier modulate circuit and analog to digital conversion circuit being sequentially connected in series with more gear sampling resistor modules；The output end of data processing unit and analog-digital conversion circuit as described connects.Atmospheric corrosion monitoring system and its monitoring method provided by the invention are used to monitor the atmospheric corrosion in transmission line of electricity installation and operation environment.
Description
Technical field
The present invention relates to atmospheric corrosion monitoring technical field, more particularly to a kind of atmospheric corrosion monitoring system and its monitoring side
Method.
Background technology
One of the important composition of transmission line of electricity as long-distance and large-capacity power transmission net, not only including wire, in addition to it is a large amount of
For hardwares such as the transmission towers of suspension insulator and wire.It is defeated when transmission line of electricity is chronically exposed in natural environment
Atmospheric corrosion easily occurs for each hardware in electric line, causes the reduction of transmission line insulator performance, and mechanical strength
Reduction, so as to bring many adverse effects to the normal operation of power network.Therefore, to atmospheric corrosion may occur in transmission line of electricity
Each hardware to carry out protection be suppression or the requisite measure for weakening atmospheric corrosion, and it is effective to understand atmospheric corrosion data
Formulate the necessary preparation of safeguard procedures.
At present, the atmospheric corrosion situation in transmission line of electricity installation and operation environment is supervised frequently with Corrosion Monitor
Survey, to obtain the atmospheric corrosion data in transmission line of electricity installation and operation environment.But because existing Corrosion Monitor exists
When sampling atmospheric corrosion electric current, its range ability is limited, and its measurement accuracy is relatively low so that Corrosion Monitor is difficult to meet
The various different installation and operation environment of transmission line of electricity cause Corrosion Monitor to be difficult to big the monitoring requirements of atmospheric corrosion
Gas corrosion electric current carries out high-precision sampling, causes existing Corrosion Monitor to be difficult to have atmospheric corrosion safeguard procedures
Effect, which is formulated, provides accurate atmospheric corrosion data.
The content of the invention
It is an object of the invention to provide a kind of atmospheric corrosion monitoring system and its monitoring method, for improving atmospheric corrosion
The sample precision of data.
To achieve these goals, the present invention provides following technical scheme：
A kind of atmospheric corrosion monitoring system, including for obtaining the electrochemical probe of atmospheric corrosion electric current, for by air
Corrosion current is converted into the current sensor of digital voltage signal, and the data processing for reception processing digital voltage signal
Unit；Wherein,
Current sensor includes the more gear sampling resistor modules being connected with electrochemical probe, and samples electricity with more gears
The signal amplifier modulate circuit and analog to digital conversion circuit that resistance module is sequentially connected in series；
The output end of data processing unit and analog to digital conversion circuit connects.
Compared with prior art, atmospheric corrosion monitoring system provided by the invention has the advantages that：
Atmospheric corrosion monitoring system provided by the present invention, after atmospheric corrosion electric current is obtained using electrochemical probe, borrow
Help current sensor by atmospheric corrosion electric current amplifier and digital voltage signal can be converted to, and the digital voltage after conversion is believed
Then number output carries out data processing, just to data processing unit by data processing unit to receiving digital voltage signal
The atmospheric corrosion data of monitoring needed for can obtaining.Because current sensor is by more gear sampling resistor modules, signal amplifier tune
Reason circuit and analog to digital conversion circuit are followed in series to form, and utilize more gear sampling resistor modules can not only be to transmission line of electricity
Atmospheric corrosion situation in installation and operation environment carries out the adjustment sampling of different stalls, effectively expands atmospheric corrosion monitoring system
Range ability, additionally it is possible to for the different installation and operation environment of transmission line of electricity, the applicable monitoring gear of Rational choice, to improve
The sample precision of atmospheric corrosion monitoring system, it is rotten so as to provide accurate air for effective formulation of atmospheric corrosion safeguard procedures
Lose data.
Moreover, atmospheric corrosion monitoring system provided by the present invention, electricity is nursed one's health using the signal amplifier in current sensor
Road and analog to digital conversion circuit, can also to after more gear sampling resistor module samples atmospheric corrosion data carry out noise reduction amplifier with
And analog-to-digital conversion, so as to which the atmospheric corrosion data stabilization after processing is effectively exported, so as to improve atmospheric corrosion monitoring system
Monitoring reliability.
Present invention also offers a kind of atmospheric corrosion monitoring method, for implementing above-mentioned more gear sampling resistor modules as three
The atmospheric corrosion monitoring system of gear resistive module.The atmospheric corrosion monitoring method, comprises the following steps：
Step 1, atmospheric corrosion monitoring system is initialized；
Step 2, the first transistor is closed, disconnects second transistor, the 3rd sampling resistor and the second sampling resistor are connected
The second sampled voltage afterwards, exported via signal amplifier modulate circuit and analog to digital conversion circuit to data processing unit, at data
Manage unit and the monitoring current of atmospheric corrosion first is obtained according to the second sampled voltage；
Step 3, the size of atmospheric corrosion the first monitoring current value and atmospheric corrosion the first predetermined current maximum is judged, with
And judge the size of atmospheric corrosion the first monitoring current value and atmospheric corrosion the first predetermined current minimum value；
If the first monitoring current of atmospheric corrosion value is more than atmospheric corrosion the first predetermined current maximum, step 4 is transferred to；
If the first monitoring current of atmospheric corrosion value is less than atmospheric corrosion the first predetermined current minimum value, step 6 is transferred to；
If the first monitoring current of atmospheric corrosion value is more than or equal to atmospheric corrosion the first predetermined current minimum value, and air
Corrode the first monitoring current value and be less than or equal to atmospheric corrosion the first predetermined current maximum, be then transferred to step 8；
Step 4, the first transistor and second transistor are closed, by the 3rd sampled voltage of the 3rd sampling resistor, via letter
Number amplifier modulate circuit and analog to digital conversion circuit are exported to data processing unit, data processing unit and obtained according to the 3rd sampled voltage
Obtain the monitoring current of atmospheric corrosion second；
Step 5, the size of atmospheric corrosion the second monitoring current value and the pre-set current value of atmospheric corrosion second is judged；
If the second monitoring current of atmospheric corrosion value is less than the pre-set current value of atmospheric corrosion second, return to step 2；
If the second monitoring current of atmospheric corrosion value is more than or equal to the pre-set current value of atmospheric corrosion second, step is transferred to
8；
Step 6, the first transistor and second transistor are disconnected, the 3rd sampling resistor, the second sampling resistor and first are adopted
Sample resistance be sequentially connected in series after the first sampled voltage, exported via signal amplifier modulate circuit and analog to digital conversion circuit to data
Unit is managed, data processing unit obtains the monitoring current of atmospheric corrosion the 3rd according to the first sampled voltage；
Step 7, the size of the monitoring current value of atmospheric corrosion the 3rd and the pre-set current value of atmospheric corrosion the 3rd is judged；
If the monitoring current value of atmospheric corrosion the 3rd is more than the pre-set current value of atmospheric corrosion the 3rd, return to step 2；
If the monitoring current value of atmospheric corrosion the 3rd is less than or equal to the pre-set current value of atmospheric corrosion the 3rd, step is transferred to
8；
Step 8, data processing unit by the first monitoring current of atmospheric corrosion value, atmospheric corrosion the second monitoring current value and/
Or the monitoring current value of atmospheric corrosion the 3rd, store to data memory module；Or
Data processing unit is by the first monitoring current of atmospheric corrosion value, atmospheric corrosion the second monitoring current value and/or air
Corrode the 3rd monitoring current value, transmit to remote data management center.
Compared with prior art, the beneficial effect achieved by atmospheric corrosion monitoring method provided by the invention, it is and above-mentioned
The beneficial effect that the atmospheric corrosion monitoring system that technical scheme provides can reach is identical, will not be described here.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of atmospheric corrosion monitoring system provided in an embodiment of the present invention；
Fig. 2 is the structural representation of electrochemical probe provided in an embodiment of the present invention；
Fig. 3 is the structural representation of current sensor provided in an embodiment of the present invention；
Fig. 4 is the flow chart of atmospheric corrosion monitoring method provided in an embodiment of the present invention.
Reference：
10- electrochemical probes, 20- current sensors,
30- data processing units, 40- temperature humidity acquisition modules,
50- photo-voltaic power supply modules, 1- printed circuit boards,
2- corrosion metal testing plates, 3- insulating cements,
4- support containers, 5- contact conductors,
The gear sampling resistor modules of 21- tri-, 22- signal amplifier modulate circuits,
23- analog to digital conversion circuits.
Embodiment
For ease of understanding, with reference to Figure of description, to atmospheric corrosion monitoring system provided in an embodiment of the present invention and
Its monitoring method is described in detail.
Referring to Fig. 1, atmospheric corrosion monitoring system provided in an embodiment of the present invention, including for obtaining atmospheric corrosion electric current
Electrochemical probe 10, for atmospheric corrosion electric current to be converted into the current sensor 20 of digital voltage signal, and for connecing
Receive the data processing unit 30 of processing digital voltage signal；Wherein,
Current sensor 20 includes the more gear sampling resistor modules being connected with electrochemical probe 10, and is adopted with more gears
The signal amplifier modulate circuit 22 and analog to digital conversion circuit 23 that sample resistive module is sequentially connected in series；
Data processing unit 30 is connected with the output end of analog to digital conversion circuit 23.
The atmospheric corrosion monitoring system that above-described embodiment is provided, atmospheric corrosion electric current is being obtained using electrochemical probe 10
Afterwards, by atmospheric corrosion electric current amplifier and digital voltage signal can be converted to by current sensor 20, and by the number after conversion
Word voltage signal is exported to data processing unit 30, is then carried out by data processing unit 30 to receiving digital voltage signal
Data processing, atmospheric corrosion data that can be to be monitored needed for acquisition.
In the atmospheric corrosion monitoring system that the embodiment of the present invention is provided, current sensor 20 can be selected and be adopted by more gears
The microampere order current sense that sample resistive module, signal amplifier modulate circuit 22 and analog to digital conversion circuit 23 are followed in series to form
More gear sampling resistor modules in device, so the microampere order current sensor, the microampere that electrochemical probe 10 can be obtained
Level atmospheric corrosion current signal is converted to the analog voltage signal of millivolt level；Its signal amplifier modulate circuit 22 can be by simulation electricity
Linearly is pressed to amplify 10 times to 1000 times；Analog voltage signal after amplification can be converted to number by its analog to digital conversion circuit 23
Word voltage signal.The atmospheric corrosion monitoring system that the embodiment of the present invention is provided utilizes more gear sampling resistor modules 21, not only
The adjustment that different stalls can be carried out to the atmospheric corrosion situation in transmission line of electricity installation and operation environment samples, and effectively expands air
The range ability of corrosion monitoring system, additionally it is possible to for the different installation and operation environment of transmission line of electricity, the applicable prison of Rational choice
Gear is surveyed, to improve the sample precision of atmospheric corrosion monitoring system, so as to effective formulation for atmospheric corrosion safeguard procedures
Accurate atmospheric corrosion data are provided.
Moreover, the atmospheric corrosion monitoring system that the embodiment of the present invention is provided, is transported using the signal in current sensor 20
Modulate circuit 22 and analog to digital conversion circuit 23 are put, the atmospheric corrosion data after more gear sampling resistor module samples can also be entered
Row noise reduction amplifier and analog-to-digital conversion, so as to which the atmospheric corrosion data stabilization after processing is effectively exported, so as to improve air
The monitoring reliability of corrosion monitoring system.
To sum up, the atmospheric corrosion monitoring system that the embodiment of the present invention is provided, to transmission line of electricity difference installation and operation ring
, can be according to each atmospheric corrosion data of acquisition after atmospheric corrosion situation in border is monitored, qualitative assessment transmission line of electricity is not
It is accurate strong so as to be provided for effective formulation of atmospheric corrosion safeguard procedures with the atmospheric corrosion situation in installation and operation environment
Atmospheric corrosion data foundation.
Exemplary, referring to Fig. 3, more gear sampling resistor modules that above-described embodiment provides are three gear sampling resistors
Module 21, the three gears sampling resistor module 21 include the first sampling being sequentially connected in series according to the order of resistance from high to low
Resistance r1, the second sampling resistor r2And the 3rd sampling resistor r3；Wherein,
First sampling resistor r1The first transistor Q in parallel1, and the first sampling resistor r1Draw with the positive pole of electrochemical probe 10
Line connects；Second sampling resistor r2Second transistor Q in parallel2；3rd sampling resistor r3Connect with the negative wire of electrochemical probe 10
Connect；
3rd sampling resistor r3The 3rd sampled voltage, the 3rd sampling resistor r3With the second sampling resistor r2After series connection
Two sampled voltages, and the 3rd sampling resistor r3, the second sampling resistor r2With the first sampling resistor r1First after being sequentially connected in series adopts
Sample voltage, it is respectively connected to signal amplifier modulate circuit 22.
You need to add is that above-mentioned first sampling resistor r1, the second sampling resistor r2And the 3rd sampling resistor r3It is essence
Close sampling resistor, above-mentioned the first transistor Q1With second transistor Q2It is low resistance conduction transistor.
Referring to Fig. 2, the electrochemical probe that above-described embodiment provides is used to obtain atmospheric corrosion electric current, the electrochemical probe
Including the support container 4 being located in transmission line of electricity installation and operation environment, the corrosion He of metal testing plate 2 is sequentially stacked in support container 4
Printed circuit board 1；Printed circuit board 1 includes：The insulated substrate on the surface of corrosion metal testing plate 2 is located at, is located at the insulated substrate back of the body
To the turmeric layer on the surface of corrosion metal testing plate, and the parallel slot of multiple insertion turmeric layers and insulated substrate；Wherein,
Turmeric layer passes through positive wire and the first sampling resistor r1Connection, corrosion metal testing plate 2 pass through negative wire and the
Three sampling resistor r3Connection；
Corrosion metal testing plate 2 is exposed to treat corrosion surface and air contact in parallel slot, corrosion metal testing plate 2 it is exposed
Surface to be sealed on the outside of insulated substrate periphery is covered by insulating cement 3.
Electrochemical probe in the present embodiment is by the corrosion metal testing plate 2 and printed circuit board 1 that are stacked in support container 4
Composition, its is simple in construction, easily makes, and the uniformity of electrochemical probe specification can be improved, so as to improve the electrochemical probe
Collimation and repeatability.Wherein, the turmeric layer of printed circuit board 1 by insulated substrate with corrosion metal testing plate 2 insulate every
From, and insertion sets multiple parallel slots on turmeric layer and insulated substrate, corrode metal testing plate treats that corrosion surface is exposed parallel
With air contact in groove, the surface to be sealed that corrosion metal testing plate 2 is exposed to outside insulated substrate covers insulation by insulating cement 3；This
When, if above-mentioned electrochemical probe is placed in the atmospheric environment of moistening, then will occur at the inside edge of parallel slot thin
Liquid film so that turmeric layer, thin liquid film and corrosion metal testing plate 2 form corrosion galvanic cell, cause corrosion metal testing plate 2 to occur greatly
Gas corrosion.
Because turmeric layer passes through positive wire and the first sampling resistor r1Connection, corrosion metal testing plate 2 pass through negative wire
With the 3rd sampling resistor r3Connection, and its positive wire and negative wire can be collectively referred to as contact conductor 5；When corrosion metal testing plate 2
During generation atmospheric corrosion, the corrosion current that is formed between corrosion metal testing plate 2 and turmeric layer, current feed 5 can be utilized defeated
Go out into three gear sampling resistor modules 21, that is, the atmospheric corrosion rate for corroding metal testing plate 2 is converted into curent change
Signal feedback output is into three gear sampling resistor modules 21, so as to realize three gear sampling resistor modules 21 to electrochemical probe
The efficiently sampling and on-line monitoring of the atmospheric corrosion situation of local environment, so as to suiting measures to local conditions and timely reasonably to power transmission line
Take anti-corrosion measure in road.
In order to further improve the sample precision of atmospheric corrosion monitoring system, the signal amplifier mentioned in above-described embodiment
Modulate circuit 22 preferably uses Low Drift Temperature low-noise operational amplifier modulate circuit, so using the characteristic of its Low Drift Temperature, low noise, can drop
Low signal amplifier modulate circuit 22 is disturbed the amplifier of the sampled signal of three gear sampling resistor module 21, so as to improve small-signal
Accuracy after amplifier, further to improve the sample precision of atmospheric corrosion monitoring system.In addition, carried in above-described embodiment
The analog to digital conversion circuit 23 arrived preferably uses high precision analogue change-over circuit.It is understood that the embodiment of the present invention is to Low Drift Temperature
The structure of low-noise operational amplifier modulate circuit and high precision analogue change-over circuit is not especially limited, and use demand is disclosure satisfy that with it
It is defined.
It is noted that referring to Fig. 1, above-described embodiment provide atmospheric corrosion monitoring system, include be used for obtain
Take the temperature humidity acquisition module 40 of digital temperature signal and digital moisture signal in transmission line of electricity installation and operation environment；At data
Output end of the unit 30 also with humidity temperature acquisition module 40 is managed to be connected.Temperature humidity acquisition module 40 is in collection transmission line of electricity peace
After filling the temperature and humidity in running environment, the temperature and humidity is converted into digital temperature signal and digital moisture signal, and
Output can utilize digital temperature signal and digital moisture signal, be the numeral electricity in same environment to data processing unit 30
Signal is pressed to provide reference, to obtain more accurate atmospheric corrosion data.Exemplary, temperature humidity acquisition module 40 gathers
Humidity can be relative humidity.
Because the distributed areas of transmission line of electricity are extensively and more positioned at open air, above-mentioned atmospheric corrosion monitoring system is used for long-range
During on-line monitoring, the work power supply of each building block is more difficult in atmospheric corrosion monitoring system, therefore, please continue to refer to Fig. 1,
The present embodiment set in atmospheric corrosion monitoring system respectively with current sensor 20, humidity temperature acquisition module 40 and data
The photo-voltaic power supply module 50 that processing unit 30 connects, greatly atmospheric corrosion can be facilitated to supervise to carry out self power generation using solar energy
The use of examining system out of doors.Photo-voltaic power supply module 50 generally includes the photovoltaic battery panel, battery and electricity being sequentially connected in series
Pressure converter；Wherein, electric pressure converter can be according to current sensor 20, humidity temperature acquisition module 40 and data processing list
First 30 respective operating voltage requirements, are changed to the voltage of battery, so as to be gathered for current sensor 20, humidity temperature
Module 40 and data processing unit 30 provide operating voltage respectively.
It is understood that the data processing unit that above-described embodiment provides is used to handle each data signal, data processing
Unit can include central processing module and the data memory module being connected respectively with central processing module signal, time mark
Module and communication module；Wherein,
Data memory module also connects with the output end of analog to digital conversion circuit and the output end of humidity temperature acquisition module respectively
Connect, data memory module be used for according to the store instruction of central processing module store digital voltage signal, digital temperature signal and
Digital Humidity signal；Data memory module can be one kind in the memory storage devices such as storage disk, storage hard disk；
Time mark module is also connected with data memory module, and time mark module is used for the mark according to central processing module
Note instruction, to corresponding to digital voltage signal, digital temperature signal and digital the moisture signal mark of data memory module storage
Monitor the moment；
Communication module is also connected with data memory module and remote control center respectively, and communication module is used for remote control
The control instruction at center is transmitted to central processing module, and is instructed according to the transmission of central processing module, by data storage mould
Digital voltage signal, digital temperature signal and the digital moisture signal of block storage are transmitted to the teledata pipe of remote control center
In reason center；The remote data management center of remote control center can be database with Data Analysis Services function or
Mainframe computer etc..
Fig. 4 and Fig. 3 are referred to, the embodiment of the present invention additionally provides a kind of atmospheric corrosion monitoring method, applied to above-mentioned reality
The more gear sampling resistor modules for applying example offer are the atmospheric corrosion monitoring system of three gear resistive modules.The atmospheric corrosion monitors
Method comprises the following steps：
Step S1, initialize atmospheric corrosion monitoring system；
Step S2, closure the first transistor Q1, disconnect second transistor Q2, by the 3rd sampling resistor r3With the second sampling electricity
Hinder r2The second sampled voltage after series connection, exported via signal amplifier modulate circuit and analog to digital conversion circuit to data processing list
Member, data processing unit obtain atmospheric corrosion the first monitoring current value i according to the second sampled voltage1；
Specifically, data processing unit is by the second sampled voltage divided by the 3rd sampling resistor r3With the second sampling resistor r2's
Resistance value sum, can be to obtain atmospheric corrosion the first monitoring current value i1。
Step S3, judge atmospheric corrosion the first monitoring current value i1With atmospheric corrosion the first predetermined current maximum I1MAX's
Size, and judge atmospheric corrosion the first monitoring current value i1With atmospheric corrosion the first predetermined current minimum value I1MINSize；
If i1＞ I1MAX, then it is transferred to step S4；
If i1＜ I1MIN, then it is transferred to step S6；
If I1MAX≥i1≥I1MIN, then it is transferred to step S8.
Step S4, closure the first transistor Q1With second transistor Q2, by the 3rd sampling resistor r3The 3rd sampled voltage,
Exported via signal amplifier modulate circuit and analog to digital conversion circuit to data processing unit, data processing unit is according to the 3rd sampling
Voltage obtains atmospheric corrosion the second monitoring current value i2；
Specifically, data processing unit is by the 3rd sampled voltage divided by the 3rd sampling resistor r3Resistance value, can be to obtain
Obtain atmospheric corrosion the second monitoring current value i2。
Step 5, atmospheric corrosion the second monitoring current value i is judged2With the second pre-set current value of atmospheric corrosion I2Size；
If i2＜ I2, then return to step S2；
If i2≥I2, then it is transferred to step S8.
Step S6, disconnect the first transistor Q1With second transistor Q2, by the 3rd sampling resistor r3, the second sampling resistor r3
With the first sampling resistor r1The first sampled voltage after being sequentially connected in series, it is defeated via signal amplifier modulate circuit and analog to digital conversion circuit
Go out to data processing unit, data processing unit and the monitoring current value i of atmospheric corrosion the 3rd is obtained according to the first sampled voltage3；
Specifically, data processing unit is by the first sampled voltage, divided by the 3rd sampling resistor r3, the second sampling resistor r3With
First sampling resistor r1Resistance value sum, can be to obtain the monitoring current value i of atmospheric corrosion the 3rd3。
Step S7, judge the monitoring current value i of atmospheric corrosion the 3rd3With the pre-set current value I of atmospheric corrosion the 3rd3Size；
If i3＞ I3, then return to step S2；
If i3≤I3, then it is transferred to step S8.
Step S8, data processing unit is by atmospheric corrosion the first monitoring current value i1, atmospheric corrosion the second monitoring current value i2
And/or the monitoring current value i of atmospheric corrosion the 3rd3, store to data memory module；Or
Data processing unit is by atmospheric corrosion the first monitoring current value i1, atmospheric corrosion the second monitoring current value i2It is and/or big
The monitoring current value i of gas corrosion the 3rd3, transmit to remote data management center.
Atmospheric corrosion monitoring method provided in an embodiment of the present invention, it is the atmospheric corrosion monitoring system that above-described embodiment provides
A kind of specifically used method, the beneficial effect phase that can reach with atmospheric corrosion monitoring system provided in an embodiment of the present invention
Together, will not be described here.
It is worth noting that, after atmospheric corrosion monitoring system is initialized, its first transistor Q1With second transistor Q2's
Folding condition is probably random, that is to say, that the first transistor Q1With second transistor Q2It may all close, or all disconnect,
Or the first transistor Q1Close and second transistor Q2Disconnect；Atmospheric corrosion monitoring method provided in an embodiment of the present invention, may be used also
With according to the first transistor Q1With second transistor Q2Folding condition, it is selective to enter corresponding step S2, step S4 or step
In rapid S6, i.e.,：As the first transistor Q1Close and second transistor Q2During disconnection, into step S2；As the first transistor Q1With
Second transistor Q2When all closing, into step S4；As the first transistor Q1With second transistor Q2When all disconnecting, into step
In rapid S6.
It is noted that please continue to refer to Fig. 4, when atmospheric corrosion monitoring system also includes being used to obtain transmission line of electricity peace
Fill running environment in the temperature humidity acquisition module of digital temperature signal and digital moisture signal, and data processing unit also with it is wet
When spending the output end connection of temperature collect module,
In above-mentioned atmospheric corrosion monitoring method, its step S8 also includes：
Digital temperature signal and Digital Humidity letter in temperature humidity acquisition module collection transmission line of electricity installation and operation environment
Number, digital temperature signal and digital moisture signal are exported to data processing unit；
Data processing unit stores digital temperature signal and digital moisture signal to data memory module；Or, at data
Reason unit transmits digital temperature signal and digital moisture signal to remote data management center.
The atmospheric corrosion monitoring method that the present embodiment provides, using humidity collection module, by transmission line of electricity installation and operation ring
After digital temperature signal and digital moisture signal in border are exported into data processing unit, digital temperature signal can be utilized
With digital moisture signal, the atmospheric corrosion monitoring current value in the same environment obtained for data processing unit provides reference, with
Just more accurate atmospheric corrosion data are obtained.
It is understood that for the ease of searching the atmospheric corrosion data in transmission line of electricity installation and operation environment, Yi Jiwei
It is easy to analyze the rule that atmospheric corrosion data change over time, in the atmospheric corrosion monitoring method that above-described embodiment provides,
Please continue to refer to Fig. 4, its step S8 also includes：
Obtain and atmospheric corrosion the first monitoring current value i1, atmospheric corrosion the second monitoring current value i2And/or atmospheric corrosion
Three monitoring current value i3One-to-one first monitoring moment t1, second monitoring moment t2And/or the 3rd monitoring moment t3；
Data processing unit monitors moment t by first1, second monitoring moment t2And/or the 3rd monitoring moment t3Correspond to respectively
Atmospheric corrosion the first monitoring current value i1, atmospheric corrosion the second monitoring current value i2And/or the monitoring current value of atmospheric corrosion the 3rd
i3, store to data memory module；Or,
Data processing unit monitors moment t by first1, second monitoring moment t2And/or the 3rd monitoring moment t3Correspond to respectively
Atmospheric corrosion the first monitoring current value i1, atmospheric corrosion the second monitoring current value i2And/or the monitoring current value of atmospheric corrosion the 3rd
i3, transmit to remote data management center.
It should be noted that above-mentioned atmospheric corrosion monitoring method is continuous in the on-line monitoring of transmission line of electricity atmospheric corrosion
What circulation performed, the cycle period of atmospheric corrosion monitoring method can according to the Run-time scenario of atmospheric corrosion monitoring system, and
The selections such as the monitoring requirements of transmission line of electricity atmospheric corrosion determine.After the storage or transmission of an atmospheric corrosion data is completed, lead to
A latency period can be often reserved, side starts the acquisition of atmospheric corrosion data next time.
In the description of above-mentioned embodiment, specific features, structure, material or feature can be in any one or more
Combined in an appropriate manner in individual embodiment or example.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (8)
1. a kind of atmospheric corrosion monitoring system, it is characterised in that including the electrochemical probe for obtaining atmospheric corrosion electric current, use
In the current sensor that the atmospheric corrosion electric current is converted into digital voltage signal, and for numeral electricity described in reception processing
Press the data processing unit of signal；Wherein,
The current sensor includes more gear sampling resistor modules for being connected with the electrochemical probe, and with the multi gear
The signal amplifier modulate circuit and analog to digital conversion circuit that position sampling resistor module is sequentially connected in series；
The output end connection of the data processing unit and analog-digital conversion circuit as described.
2. atmospheric corrosion monitoring system according to claim 1, it is characterised in that more gear sampling resistor modules are
Three gear sampling resistor modules；The three gears sampling resistor module includes going here and there successively according to the order of resistance from high to low
The first sampling resistor, the second sampling resistor and the 3rd sampling resistor of connection；Wherein,
The first sampling resistor parallel connection the first transistor, and the positive pole of first sampling resistor and the electrochemical probe draws
Line connects；The second sampling resistor parallel connection second transistor；The negative pole of 3rd sampling resistor and the electrochemical probe
Lead connects；
After 3rd sampled voltage of the 3rd sampling resistor, the 3rd sampling resistor and second sampling resistor series connection
Second sampled voltage, and the 3rd sampling resistor, second sampling resistor and first sampling resistor are sequentially connected in series
The first sampled voltage afterwards, it is respectively connected to the signal amplifier modulate circuit.
3. atmospheric corrosion monitoring system according to claim 2, it is characterised in that the electrochemical probe is defeated including being located at
Support container in electric line installation and operation environment, corrosion metal testing plate and printed circuit are sequentially stacked in the support container
Plate；The printed circuit board includes：The insulated substrate on the surface of the corrosion metal testing plate is located at, is located at the insulated substrate back of the body
It is parallel with the insulated substrate to the turmeric layer on the surface of the corrosion metal testing plate, and multiple insertion turmeric layers
Groove；Wherein,
The turmeric layer is connected by positive wire with first sampling resistor, and the corrosion metal testing plate passes through negative wire
It is connected with the 3rd sampling resistor；
Metal testing plate is exposed treats corrosion surface and air contact, the corrosion metal testing plate in the parallel slot for the corrosion
The exposed surface to be sealed on the outside of the insulated substrate periphery is covered by insulating cement.
4. according to the atmospheric corrosion monitoring system described in claim any one of 1-3, it is characterised in that the atmospheric corrosion monitoring
System also includes being used to obtain the temperature humidity of digital temperature signal and digital moisture signal in transmission line of electricity installation and operation environment
Acquisition module；
Output end of the data processing unit also with the humidity temperature acquisition module is connected.
5. atmospheric corrosion monitoring system according to claim 4, it is characterised in that the atmospheric corrosion monitoring system is also wrapped
Include the photo-voltaic power supply being connected respectively with the current sensor, the humidity temperature acquisition module and the data processing unit
Module.
6. a kind of atmospheric corrosion monitoring method, it is characterised in that monitor system applied to atmospheric corrosion as claimed in claim 2
System, the atmospheric corrosion monitoring method comprise the following steps：
Step 1, atmospheric corrosion monitoring system is initialized；
Step 2, the first transistor is closed, disconnects second transistor, after the 3rd sampling resistor and the series connection of the second sampling resistor
Second sampled voltage, exported via signal amplifier modulate circuit and analog to digital conversion circuit to data processing unit, at the data
Manage unit and atmospheric corrosion the first monitoring current value is obtained according to second sampled voltage；
Step 3, the size of atmospheric corrosion the first monitoring current value and atmospheric corrosion the first predetermined current maximum is judged, with
And judge the size of atmospheric corrosion the first monitoring current value and atmospheric corrosion the first predetermined current minimum value；
If the first monitoring current of atmospheric corrosion value is more than the first predetermined current of atmospheric corrosion maximum, step is transferred to
Rapid 4；
If the first monitoring current of atmospheric corrosion value is less than the first predetermined current of atmospheric corrosion minimum value, step is transferred to
Rapid 6；
If the first monitoring current of atmospheric corrosion value is more than or equal to the first predetermined current of atmospheric corrosion minimum value, and
The first monitoring current of atmospheric corrosion value is less than or equal to the first predetermined current of atmospheric corrosion maximum, then is transferred to step
8；
Step 4, the first transistor and the second transistor are closed, by the 3rd sampling electricity of the 3rd sampling resistor
Pressure, is exported to the data processing unit, the data via the signal amplifier modulate circuit and analog-digital conversion circuit as described
Processing unit obtains atmospheric corrosion the second monitoring current value according to the 3rd sampled voltage；
Step 5, the size of atmospheric corrosion the second monitoring current value and the pre-set current value of atmospheric corrosion second is judged；
If the second monitoring current of atmospheric corrosion value is less than the pre-set current value of atmospheric corrosion second, return to step 2；
If the second monitoring current of atmospheric corrosion value is more than or equal to the pre-set current value of atmospheric corrosion second, it is transferred to
Step 8；
Step 6, the first transistor and the second transistor are disconnected, by the 3rd sampling resistor, second sampling
Resistance and first sampling resistor be sequentially connected in series after the first sampled voltage, via the signal amplifier modulate circuit and described
Analog to digital conversion circuit exports to be obtained big to the data processing unit, the data processing unit according to first sampled voltage
The monitoring current value of gas corrosion the 3rd；
Step 7, the size of the monitoring current value of atmospheric corrosion the 3rd and the pre-set current value of atmospheric corrosion the 3rd is judged；
If the monitoring current value of atmospheric corrosion the 3rd is more than the pre-set current value of atmospheric corrosion the 3rd, return to step 2；
If the monitoring current value of atmospheric corrosion the 3rd is less than or equal to the pre-set current value of atmospheric corrosion the 3rd, it is transferred to
Step 8；
Step 8, the first monitoring current of atmospheric corrosion value, the atmospheric corrosion second are monitored electricity by the data processing unit
Flow valuve and/or the monitoring current value of the atmospheric corrosion the 3rd, are stored to data memory module；Or
The data processing unit is by the first monitoring current of atmospheric corrosion value, the atmospheric corrosion the second monitoring current value
And/or the monitoring current value of atmospheric corrosion the 3rd, transmit to remote data management center.
7. atmospheric corrosion monitoring method according to claim 6, it is characterised in that the atmospheric corrosion monitoring system is also wrapped
Include for obtaining the temperature humidity acquisition module of digital temperature signal and digital moisture signal in transmission line of electricity installation and operation environment；
Output end of the data processing unit also with the humidity temperature acquisition module is connected；
In the atmospheric corrosion monitoring method, step 8 also includes：
Digital temperature signal and Digital Humidity letter in the temperature humidity acquisition module collection transmission line of electricity installation and operation environment
Number, by the digital temperature signal and the Digital Humidity signal output to the data processing unit；
The data processing unit stores the digital temperature signal and the Digital Humidity signal to data memory module；
Or, the data processing unit transmits the digital temperature signal and the Digital Humidity signal into remote data management
The heart.
8. atmospheric corrosion monitoring method according to claim 6, it is characterised in that in the atmospheric corrosion monitoring method,
Step 8 also includes：
Obtain and the first monitoring current of atmospheric corrosion value, the atmospheric corrosion the second monitoring current value and/or the air
Corrode the 3rd monitoring current value one-to-one first monitoring moment, the second monitoring moment and/or the 3rd monitoring moment；
The data processing unit monitors moment, the second monitoring moment and/or the 3rd monitoring moment by described first,
It is rotten that the first monitoring current of atmospheric corrosion value, the atmospheric corrosion the second monitoring current value and/or the air are corresponded to respectively
The 3rd monitoring current value is lost, is stored to data memory module；Or,
The data processing unit monitors moment, the second monitoring moment and/or the 3rd monitoring moment by described first,
It is rotten that the first monitoring current of atmospheric corrosion value, the atmospheric corrosion the second monitoring current value and/or the air are corresponded to respectively
The 3rd monitoring current value is lost, is transmitted to remote data management center.
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| CN114556012A (en) * | 2019-10-17 | 2022-05-27 | 奇秉镐 | Multifunctional corrosion detection system |
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