CN205861094U - System for HVDC System Earth Pole state monitoring apparatus - Google Patents
System for HVDC System Earth Pole state monitoring apparatus Download PDFInfo
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- CN205861094U CN205861094U CN201620171566.5U CN201620171566U CN205861094U CN 205861094 U CN205861094 U CN 205861094U CN 201620171566 U CN201620171566 U CN 201620171566U CN 205861094 U CN205861094 U CN 205861094U
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- 229910052751 metal Inorganic materials 0.000 claims description 24
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- 239000000523 sample Substances 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 14
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 claims description 5
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Abstract
This utility model relates to a kind of System for HVDC System Earth Pole state monitoring apparatus.Being characterized in: include microprocessor, this microprocessor is connected with digital hygro sensor, digital water-temperature sensor, level sensor, antenna (1), crystal oscillator and battery respectively.The beneficial effects of the utility model are: 1, effectively reduce the personnel of System for HVDC System Earth Pole O&M, time and workload, alleviate the working strength of line producers, improve work efficiency, save recruitment cost.2, the design of Highgrade integration, simple in construction, makes device have high, the most non-maintaining feature of good environmental adaptability, security reliability, be easily installed and use simultaneously.
Description
Technical field
This utility model relates to a kind of System for HVDC System Earth Pole state monitoring apparatus.
Background technology
Direct current grounding pole is as the important component part of DC transmission system, and Main Function is for unidirectional current
Stream provides low impedance path, limits neutral point potential and flows through the out-of-balance current at the two poles of the earth.Its safety can
By running vital effect that DC transmission system is played.Current domestic high voltage direct current transmission project
Earthing pole mostly is shallow buried type land earthing pole.For the earthing pole of the type, location, pole Soil conservation is good
Conduction and heat conductivility, bigger hot melt coefficient and enough humidity, guarantee earthing pole fortune
Row has good thermal stability.Owing to the earthing pole of different soils resistivity presents different electricity
Values of resistivity, under the effect of DC current, ground electrode temperatures will raise, when temperature is increased to necessarily
Degree is, the moisture in soil may be evaporated, and the electric conductivity of soil will be deteriorated, ground connection
Electrode will appear from thermally labile, and soil can be made time serious to sinter the most nonconducting vitreous humour into,
Electrode will lose operation function.And reflect that the MAIN SOILS parameter of ground electrode temperature rise has earthing pole water
Temperature, water level and the humiture etc. of ambient soil.For will appreciate that earthing pole water temperature, water level and environment soil
The data such as the humiture of earth, earthing pole is typically provided monitoring well, be respectively used to measure water level, water temperature and
Ambient soil humiture.Due to the general addressing of earthing pole at tool current conversion station farther out, the open place of physical features, examines
Consider anti-theft measure, monitor the aboveground Fang Jun cover plate with reinforced concrete structure.
Traditional method measures earthing pole water level, water level and ambient temperature and humidity needs operation maintenance personnel scene to supervise
Well logging cover plate carries out the work such as manual measurement, record after lifting, and due to each cover plate heavier-weight, needs
Several operation maintenance personnel use special tool(s) just can lift, and measurement collection earthing pole all monitors well information to be needed
Expend substantial amounts of recruitment and time cost.Therefore, urgent need one in production scene can be surveyed the most accurately
Amount earthing pole water temperature, water level and the device of ambient soil humiture, do not reducing job and content
On the basis of get, operation maintenance personnel working time and workload can be reduced, earthing pole can be grasped again simultaneously
Ruuning situation, the lean level improving earthing pole equipment with this, reach earthing pole managerial promotion
Requirement.
Utility model content
The purpose of this utility model is to provide a kind of System for HVDC System Earth Pole status monitoring dress
Put, it is possible to System for HVDC System Earth Pole carries out measuring the most accurately earthing pole water temperature, water
Position and the work of ambient soil humiture.
A kind of System for HVDC System Earth Pole state monitoring apparatus, it is particular in that: include
Microprocessor, this microprocessor respectively with digital hygro sensor, digital water-temperature sensor, water level
Sensor, antenna, crystal oscillator and battery connect.
Wherein microprocessor is connected with antenna by wireless peripheral peripheral circuit.
Wherein battery uses lithium thionyl chloride cell.
Also include metal shell, described microprocessor, crystal oscillation are installed in this metal shell
Device and battery；
Wherein on this metal shell, it is installed with radio frequency (RF) coaxial connector, connects in this radio-frequency (RF) coaxial
Antenna is installed on device, directly contacts between the outer conductor of this radio frequency (RF) coaxial connector and metal shell,
So that current potential is equal between the two, and the inner wire of this radio frequency (RF) coaxial connector is with microprocessor even
Connect；On metal shell, wherein it is installed with the humiture probe of digital hygro sensor, at this
In humiture probe, digital hygro sensor is installed；On metal shell, wherein it is installed with electricity
Cable water joint, this Waterproof connector of cable is connected, at this with water level and water temperature probe by water-proof cable
In water level and water temperature probe, digital water-temperature sensor and level sensor are installed.
The beneficial effects of the utility model are: 1, effectively reduce System for HVDC System Earth Pole fortune
Personnel, time and the workload of dimension, alleviates the working strength of line producers, improves work
Efficiency, saves recruitment cost.2, the design of Highgrade integration, simple in construction, makes device have ring
Border adaptability is good, security reliability is high, the most non-maintaining feature, it is easily installed and uses simultaneously.
3, the design of super low-power consumption, makes device design service life up to more than 10 years.4, can use
Use intermittently used mode, or use based on bluetooth 4.0BLE wireless communication technology, can pass through
Real-time the looking into of the intelligent mobile terminal such as mobile phone, panel computer such as Android, IOS of support bluetooth 4.0
See field data, accomplish portability tour.
Accompanying drawing explanation
Accompanying drawing 1 is logic theory block diagram of the present utility model；
Accompanying drawing 2 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, 2, this utility model provides a kind of System for HVDC System Earth Pole shape
State monitoring device, including microprocessor, this microprocessor respectively with digital hygro sensor, numeral
Cooling-water temperature sensor, level sensor, antenna 1, crystal oscillator and battery connect.The most micro-process
Device is connected with antenna 1 by wireless peripheral peripheral circuit.Wherein battery uses lithium thionyl chloride cell.
Also include metal shell 3, described microprocessor, crystal are installed in this metal shell 3
Agitator and battery；Wherein on this metal shell 3, it is installed with radio frequency (RF) coaxial connector 2,
On this radio frequency (RF) coaxial connector 2, antenna 1 is installed, the outer conductor of this radio frequency (RF) coaxial connector 2 and gold
Belong to and directly contacting between shell 3, so that current potential is equal between the two, and this radio frequency (RF) coaxial connector
The inner wire of 2 is connected with microprocessor；On metal shell 3, wherein it is installed with numeral humiture
The humiture probe 5 of sensor, is provided with digital hygro sensor in this humiture probe 5；
Wherein being installed with Waterproof connector of cable 4 on metal shell 3, this Waterproof connector of cable 4 passes through
Water-proof cable 6 is connected with water level and water temperature probe 7, is provided with number in this water level and water temperature probe 7
Word cooling-water temperature sensor and level sensor.
Further, this utility model provides a kind of System for HVDC System Earth Pole status monitoring
Device, including digital hygro sensor, digital water-temperature sensor, level sensor, microprocessor,
Battery, wireless peripheral peripheral circuit, crystal oscillator, antenna 1 equipment.
1, described digital hygro sensor relies primarily on capacitive character polymer for the measurement of humidity
Wet sensitive sensing unit, after absorbing moisture, its dielectric constant substantially changes, along with hydrone increases, humiture
The capacitance of sensor increases, and records relative humidity according to the change of capacitance.Digital temperature sensor
Use high-precision digital Temperature Humidity Sensor chip, there is calibration automatically, accuracy of measurement height, ring
Answer fireballing feature, its temperature measurement range :-40 DEG C～+85 DEG C；Temperature measurement accuracy: ± 1 DEG C
(0 DEG C～+50 DEG C)；
2, described digital hygro sensor relies primarily on the survey of gap material for the measurement of temperature
Temperature element, is produced temperature signal by temperature sensor, through amplifying, deliver to A/D conversion carry out changing,
Calibration, error correction, generate data.Relative humidity measurement scope: 0～100%RH；Relative humidity measurement
Precision: ± 3%RH (20%RH～80%RH@25 DEG C).
3, described digital water-temperature sensor uses contact temperature-measuring mode, is totally submerged by temperature probe
In measured medium, can measure the temperature of the fluids such as various liquid, gas, temperature probe uses resistance to invading
Lose 316L stainless steel of good performance.Digital water-temperature sensor temperature measurement range :-40 DEG C～
+ 85 DEG C, temperature measurement accuracy: ± 1 DEG C (0 DEG C～+50 DEG C).
4, described level sensor core is a diffused-silicon pressure sensing element, on a silicon substrate
Use ion implanting also to make Wheatstone bridge through laser correction, pressure process act on sensor every
Diaphragm is made to produce displacement on diaphragm, by the silicone oil pressure transmission in bellows to silicon chip, simultaneously
The pressure (such as atmospheric pressure) of reference edge acts on another survey of silicon chip, and so both sides at silicon chip just add
Having gone up a differential pressure, differential pressure creates a stress field on silicon chip, makes Wheatstone bridge disequilibrium
And create a voltage output signal being directly proportional to the pressure.Level sensor level gauging scope:
0～10m, liquid level measurement precision: ± 1% ± 0.02m (0 DEG C～+40 DEG C).
5, the monitoring requirements under described sensor meets multiple environment, main controller degree of protection is IP66
Above, probe degree of protection can reach IP68.
6, described microprocessor is powerful, multi-protocols SoC (the chip-scale system of high flexibility
System), support bluetooth and the application of 2.4GHz ultra-low power consumption wireless, there is high integration, low cost, place
The features such as reason ability is strong, low-power consumption and small size.
7, described battery uses lithium thionyl chloride cell, for long-life disposable battery, self discharge
Rate is low, stable operating voltage, operating temperature range wide, and after dead battery capability, replaceable battery continues
Use.
8, described wireless peripheral peripheral circuit is necessary to microcontroller implementation radio communication function
Circuit.
9, the radio receiving transmitting module that described crystal oscillator is microprocessor provides reference clock, it is ensured that
Wireless communication frequency is within the scope of nominal error.
10, described antenna 1 is used for radiating and receiving wireless signal.
Embodiment 1:
1, hardware circuit:
As it is shown in figure 1, the hardware circuit of a kind of earthing pole well state monitoring apparatus is mainly by micro-process
Device, crystal oscillator, wireless peripheral peripheral circuit, antenna 1, battery, digital hygro sensor,
Digital water-temperature sensor, pressure transducer form.
Above-mentioned microprocessor is wireless multi-protocols SoC (systems-on-a-chips), supports bluetooth and 2.4GHz
Ultra-low power consumption wireless is applied, and has that high integration, low cost, disposal ability be strong, low-power consumption and a corpusculum
The advantage such as long-pending.Microprocessor is for work such as radio communication, outer standby, the process data of control.Above-mentioned crystalline substance
The radio receiving transmitting module that oscillation body device is microprocessor provides reference clock, it is ensured that wireless communication frequency exists
Within the scope of nominal error.Above-mentioned wireless peripheral peripheral circuit is microcontroller implementation radio communication function
Necessary circuit.Above-mentioned antenna 1 is used for radiating and receiving wireless signal.Above-mentioned battery is micro-process
Power supply needed for device offer work.Battery uses jumbo lithium thionyl chloride cell, and this kind of battery is
The preferred battery of low-power dissipation system.
Above-mentioned digital hygro sensor is for measuring the temperature of air, relative humidity in well, described
Digital hygro sensor is connected to the I/O of microprocessor, and it is warm and humid that microprocessor controls numeral by I/O
Degree working sensor is also powered for it.
Above-mentioned digital temperature sensor is for measuring the water temperature of well, and described digital temperature sensor connects
To the I/O of microprocessor, microprocessor is worked by I/O control digital temperature sensor and is that it supplies
Electricity.
Above-mentioned pressure transducer is for measuring the water level of well.Pressure transducer is sensitive by diffused-silicon pressure
Element, digital to analog converter form.Described diffused-silicon pressure sensing element is used for detecting hydraulic pressure relative to greatly
The pressure differential of air pressure, it exports a voltage signal being directly proportional to pressure differential, and this voltage signal passes through
Becoming digital signal after the amplification of analog-digital converter, analog-to-digital conversion, this digital signal is through calculation process
After obtain waterlevel data.Microprocessor is powered by I/O controlling water level working sensor and for it.
2, contour structures:
As in figure 2 it is shown, the contour structures of earthing pole well state monitoring apparatus includes antenna 1, radio frequency
Coaxial connector 2, metal shell 3, Waterproof connector of cable 4, humiture probe 5, water-proof cable 6,
Water level and water temperature probe 7.
Metal shell 3 internally installed control circuit plate and battery, digital hygro sensor, numeral temperature
Degree sensor, pressure transducer are connected with control circuit plate by wire.
Antenna 1 is arranged on radio frequency (RF) coaxial connector 2, and antenna 1 uses replaceable design, can basis
Different size, type, the antenna 1 of gain are changed in actual demand, it is also possible to use Antenna extender line
Switching antenna 1.
Radio frequency (RF) coaxial connector 2 is fixed on metal shell 3, the outer conductor of radio frequency (RF) coaxial connector 2
With metal shell 3 short circuit, current potential is equal between the two.The inner wire of radio frequency (RF) coaxial connector 2 connects
Antenna 1 port to hardware circuit.
Humiture probe 5 is fixed on metal shell 3, its internally installed digital hygro sensor,
Digital hygro sensor is connected with control circuit plate by wire.Humiture probe 5 possesses good
Protection and waterproof and breathable performance, it can enter internal by resistance aqueous water, but permission vaporous water molecule passes through,
Therefore the measurement result value of air humidity is affected the least.
Waterproof connector of cable 4 is fixed on metal shell 3, and water-proof cable 6 passes through Waterproof connector of cable
4 are fixed on metal shell 3.Water-proof cable 6 is flexible shielded cable, possess good oil resistivity,
Abrasion resistance properties, high and low temperature resistance.
Water level and water temperature are popped one's head in 7 mounted inside digital temperature sensor and level sensors, sensor electricity
Road is connected with control circuit plate by water-proof cable 6.Water level and water temperature probe 7 need to put in water to be used
In measuring water level, water temperature, with epoxy resin or silicone rubber embedding inside it, it can be ensured that not because of immersion
Cause the damage of hardware circuit.
3, operation principle:
Earthing pole well state monitoring apparatus uses intermittently used mode: timing microprocessor starts to be surveyed
The parameters such as amount air themperature, relative air humidity, water level, water temperature, cell voltage, by data summarization
Sent by wireless channel after process, after completing one action, just close the electricity of all ancillary equipment
Source, subsequently into the resting state of super low-power consumption.It is obvious that to those skilled in the art,
The working procedure of above-mentioned microprocessor belongs to existing conventional techniques means.
Earthing pole well state monitoring apparatus supports low-power consumption Bluetooth protocol (BLE) and self-defined 2.4G
Wireless protocols, by supporting that the mobile devices such as the mobile phone of BLE, panel computer check earthing pole at the scene
Well state, it is also possible to be grounded pole well state by special Wireless Sensor Network Platform real
Time on-line monitoring function.
Claims (4)
1. a System for HVDC System Earth Pole state monitoring apparatus, it is characterised in that: include
Microprocessor, this microprocessor respectively with digital hygro sensor, digital water-temperature sensor, water level
Sensor, antenna (1), crystal oscillator and battery connect.
2. System for HVDC System Earth Pole state monitoring apparatus as claimed in claim 1, its
It is characterised by: wherein microprocessor is connected with antenna (1) by wireless peripheral peripheral circuit.
3. System for HVDC System Earth Pole state monitoring apparatus as claimed in claim 1, its
It is characterised by: wherein battery uses lithium thionyl chloride cell.
4. System for HVDC System Earth Pole state monitoring apparatus as claimed in claim 1, its
It is characterised by: also include metal shell (3), is provided with described micro-in this metal shell (3)
Processor, crystal oscillator and battery；
On this metal shell (3), wherein it is installed with radio frequency (RF) coaxial connector (2), penetrates at this
Antenna (1), the outer conductor of this radio frequency (RF) coaxial connector (2) are installed on coaxial connector (2) frequently
Directly contacting with between metal shell (3), so that current potential is equal between the two, and this radio frequency is same
The inner wire of mandrel connector (2) is connected with microprocessor；
On metal shell (3), wherein it is installed with the humiture probe of digital hygro sensor
(5), in this humiture probe (5), digital hygro sensor is installed；
On metal shell (3), wherein it is installed with Waterproof connector of cable (4), this cable waterproof
Joint (4) is connected by water-proof cable (6) and water level and water temperature probe (7), at this water level and
In water temperature probe (7), digital water-temperature sensor and level sensor are installed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152647 | 2016-02-29 | ||
| CN2016201526470 | 2016-02-29 |
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| Publication Number | Publication Date |
|---|---|
| CN205861094U true CN205861094U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620171566.5U Active CN205861094U (en) | 2016-02-29 | 2016-03-07 | System for HVDC System Earth Pole state monitoring apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628103A (en) * | 2016-02-29 | 2016-06-01 | 国家电网公司 | High-voltage DC transmission system earth electrode state monitoring device |
-
2016
- 2016-03-07 CN CN201620171566.5U patent/CN205861094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628103A (en) * | 2016-02-29 | 2016-06-01 | 国家电网公司 | High-voltage DC transmission system earth electrode state monitoring device |
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