CN108680094A - Icing sensor and method for detecting ice coating based on air Yu ice resistance characteristic difference - Google Patents
Icing sensor and method for detecting ice coating based on air Yu ice resistance characteristic difference Download PDFInfo
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- CN108680094A CN108680094A CN201810174330.0A CN201810174330A CN108680094A CN 108680094 A CN108680094 A CN 108680094A CN 201810174330 A CN201810174330 A CN 201810174330A CN 108680094 A CN108680094 A CN 108680094A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
- G01B7/085—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means for measuring thickness of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
Abstract
Icing sensor disclosed by the invention based on air Yu ice resistance characteristic difference, including icing detecting sensor, icing detecting sensor is connected with digitized processing circuit, its circuit include main control chip and A D conversion modules, main control chip includes reseting module, RTC timing modules, data memory module, voltage transformation module and data communication module, icing detecting sensor connect main control chip by A D conversion modules.The invention also discloses the detection methods of icing, first icing sensor is mounted on transmission pressure, data monitoring backstage sends a signal to main control chip, main control chip controls the resistance value and temperature of contact pair and each contact position of temperature sensor measurement, then the medium of contact position is judged according to obtained resistance value and temperature, and it is sent to data monitoring backstage, icing shape is drawn on data monitoring backstage, to calculate ice covering thickness.The present invention solves the problems, such as that icing monitoring technology can not monitor transmission line icing thickness and shape.
Description
Technical field
The invention belongs to powerline ice-covering field of measuring technique, are related to a kind of based on air and ice resistance characteristic difference
Icing sensor and method for detecting ice coating.
Background technology
Under ice rain or icy conditions, hanging power transmission line, high voltage transmission line fixes pylon, offshore drilling platform, building
Or various equipment surfaces, suspended scaffold, the icing of branch etc. can usually cause huge disaster consequence.2008 beginning of the years, I
State south meets with rare ice disaster, continuous sleet weather make many electric power transmission lines, on pylon ice covering thickness up to 50
~100mm greatly exceeds the technical standard of the net loaded ice covering thickness of general electric power transmission, collapses so as to cause pylon, electric power
A series of problems, such as power transmission network large area is paralysed, and then is caused traffic and be obstructed, and communication is unsmooth, and power failure is cut off the water, and forest is ruined, according to system
Meter, direct losses caused by ice disaster are up to 2530.5 hundred million yuans, transmit electricity to power grid system if can realize at any time
The accurate detection of line or pylon ice covering thickness, so that it may avoid icing and disaster caused by heavy snow to take effective precautionary measures.
Current transmission line icing monitoring is based primarily upon mechanics sensor, mainly carries out the measurement of equivalent ice covering thickness, can not accurately survey
Measure ice covering thickness and shape.
Invention content
The object of the present invention is to provide a kind of icing sensor based on air Yu ice resistance characteristic difference, solves existing
Monitoring transmission line icing technology can not monitor transmission line icing thickness and the problem of shape.
It is a further object of the present invention to provide a kind of icing based on air Yu the icing sensor of ice resistance characteristic difference
Detection method.
The technical solution adopted in the present invention is the icing sensor based on air Yu ice resistance characteristic difference, including is covered
One end of ice detecting sensor, icing detecting sensor is connected by conducting wire with digitized processing circuit, digitized processing circuit
Including insulation crust, be connected with inside insulation crust main control chip and A D conversion modules, main control chip includes reseting module, RTC
Timing module, data memory module, voltage transformation module and data communication module, data communication module use 485 level conducts
Data output interface, icing detecting sensor by A D conversion modules transmit a signal to main control chip；
Icing detecting sensor includes two semicircular ring insulation boards, if one side surface of semicircular ring insulation board is provided with dry contact
Right, contact handles acquisition module to being all connected with control decoding gating module and voltage, and another side surface of semicircular ring insulation board is also
If the number of affixed dry temperature sensor, temperature sensor and contact pair is consistent, temperature sensor is all connected with control decoding gating
Module.
Other features of the present invention also reside in,
To including several metal contacts, metal contact is respectively and fixedly connected to two semicircular rings insulation plate surfaces for each contact, and
And it is uniformly distributed around two semicircular ring insulation plate surfaces, the metal contact number being located in two semicircular ring insulation plate surfaces
Unanimously, the position of temperature sensor and metal contact corresponds.
Semicircular ring insulation board bottom surface is provided with groove, the cross section semicircular in shape of groove, and the center of circle and the semicircular ring of groove insulate
The center of circle of plate overlaps, and the radius of groove is less than the radius of semicircular ring insulation board.
Insulation crust is in cube, is provided with straight slot among cube bottom surface, the cross section semicircular in shape of straight slot is semicircular
Radius is equal to the radius of groove.
Another technical solution of the present invention is, a kind of using such as above-mentioned based on air and ice resistance characteristic difference
Icing sensor detection icing method, concrete operation step is as follows：
Step 1. installs digital icing sensor on transmission line of electricity；
The digital icing sensor electrifying startup of step 2., data monitoring backstage, which is sent, needs the numerical information set to number
The numerical information order received is carried out classification processing by the main control chip of word formula icing sensor, main control chip；
The main control chip of the digital icing sensor of step 3. sends acquisition according to classification treated data information
Give icing detecting sensor, on contact pair on icing sensor and temperature sensor detection transmission line of electricity the resistance value of medium and
Temperature, and the resistance value of medium and temperature value on the transmission line of electricity detected are uploaded to main control chip, main control chip will obtain
Resistance value compared with historical data, to judge that transmission pressure upper contact is ice or air to the medium of position；
The transmission pressure upper contact that step 4. main control chip will determine that out is sent to data prison to the medium information of position
Backstage is surveyed, the icing shape graph on transmission line of electricity is drawn on data monitoring backstage.
The concrete operations that digital icing sensor is installed in step 1 are as follows：First by the recessed of digital icing sensor
Slot part is stuck in any position on transmission pressure and is then sensed digital icing by way of wireless connection with fixation
Device is connect with device for monitoring icing, finally connect device for monitoring icing with data monitoring backstage, controls digital icing sensing
Device electrifying startup.
The concrete operations of step 2 are as follows：
After digital wire icing sensor electrifying startup, reset operation is first carried out in reseting module, and all threshold values are answered
Then position monitors backstage by operation data, the threshold of ice covering thickness is set according to the diameter of transmission pressure and bearing capacity ability
Value, according in the growth rate of icing on transmission line of electricity and complexity setting data collection interval 4-10min and data
Pass time interval 1.5-3h, according to the time of transmission line of electricity local environment situation set temperature alarm threshold value and sensor, then
Data communication module of the data-signal to digital icing sensor is transmitted by 485 communication modes, and then is transferred to master control core
Piece, main control chip judge the data-signal received, if it is threshold value and time interval order, are then automatically stored to number
According in memory module, if it is sensor time, then the time of RTC timing modules is configured, ensures that digital icing passes
Sensor is consistent with the extraneous time.
The concrete operations of step 3 are as follows：
Step 3.1 main control chip is according to the data collection interval received, regularly to icing detecting sensor
Control decoding gating module, which is sent, connects signal, and control decoding gating module passes the contact pair of icing detecting sensor and temperature
Sensor according to distance of wire from the near to the remote, successively by connecting, by contact to icing on each position on measure traverse line
With the resistance of air, pass through the temperature around temperature sensor measurement conducting wire；
The resistance value measured is uploaded to voltage and handles acquisition module, voltage processing by step 3.2 icing detecting sensor
Acquisition module by resistance value be converted into A the voltage that can identify of D conversion modules, then, by A D conversion modules be transferred to master
Chip is controlled, main control chip calculates the resistance of circuit by Ohm's law and voltage divider principle, measures (9) to obtaining contact
The resistance of medium；The temperature value measured is transferred directly to main control chip by icing detecting sensor, and then main control chip obtains
The resistance and temperature data of icing and air on the transmission line of electricity of icing detecting sensor transmission, and store data in data
In memory module；
Step 3.3 main control chip is by the resistance and temperature data data and data of icing near the conducting wire of acquisition and air
Historical data in memory module analyzes resistance value by comparing algorithm comparison, if apparent mutation occurs in resistance Value Data
Point, then mutated site is at icing and air interface, is otherwise air.
The concrete operations of step 4 are as follows：
After main control chip judges the medium in icing detecting sensor between contact pair, main control chip is uploaded according to data
The signal for the transmission data that time interval or data monitoring backstage are sent, passes through data communication by medium information between contact pair
Module transfer gives data monitoring backstage, and data monitoring is from the background according to the position of icing detecting sensor upper contact and obtained contact
Medium information between is marked the medium information of different contact positions on icing detecting sensor, and draws out and lead
The figure of line overlying ice condition condition, obtains position and the thickness of icing from figure.
The invention has the advantages that the icing sensor based on air and ice resistance characteristic difference and icing detection side
Method, which includes icing detecting sensor, is disposed with around conducting wire a large amount of existing in pairs
Contact and temperature sensor, by the CPU of sensor internal and decoding gating module, from the near to the distant to the contact around conducting wire
Pair and the temperature sensors of equivalent distances be powered, icing and air have different resistance characteristics, the icing and sky measured
The resistance value of medium and temperature value have relatively big difference between contact pair in gas, after controlling chip collection total data, calculate
The measurement of the ice covering thickness and shape of transmission line of electricity can be obtained in analysis.Icing measurement sensor is internally provided with memory module,
Sensor can voluntarily carry out the operations such as icing measurement, data storage after being powered.The control chip pair of external connection can be passed through
Icing measurement sensor realizes the operation of the setting at acquisition time interval, the reading of clock synchronization, historical information.
Description of the drawings
Fig. 1 is the present invention based on air and icing in the icing sensor and method for detecting ice coating of ice resistance characteristic difference
The shell mechanism schematic diagram of sensor；
Fig. 2 is the present invention based on air and icing in the icing sensor and method for detecting ice coating of ice resistance characteristic difference
The structural schematic diagram that the digital circuit of sensor is connected with icing detecting sensor；
Fig. 3 is the present invention based on air and icing in the icing sensor and method for detecting ice coating of ice resistance characteristic difference
The internal structure schematic diagram of detecting sensor；
Fig. 4 is the present invention based on air and covering in the icing sensor and method for detecting ice coating of ice resistance characteristic difference
The schematic diagram of ice sensor installation；
Fig. 5 is the position distribution schematic diagram of contact in icing detecting sensor；
Fig. 6 is that main control chip mark goes out the position icing of contact and the position distribution schematic diagram of non-icing；
Fig. 7 is the icing schematic shapes that data monitoring backstage is drawn out.
In figure, 1. main control chips, 2. reseting modules, 3.RTC timing modules, 4. data memory modules, 5. voltage moduluss of conversion
Block, 6. data communication modules, 7.A D conversion modules, 8. icing detecting sensors, 9. metering contacts pair, 10. temperature sensors,
11. decoding gating module, 12. voltages handle acquisition module, 13. icing measurement sensors, 14. analog conducting wires, 15. analog conducting wires
On icing, 16. monitoring devices, 17. data monitorings backstage.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The icing sensor based on air Yu ice resistance characteristic difference of the present invention, structural schematic diagram are shown in Fig. 1 and Fig. 2, wrap
Icing detecting sensor 8 is included, one end of icing detecting sensor 8 is connected by conducting wire with digitized processing circuit, at digitlization
It includes insulation crust to manage circuit, be connected with inside insulation crust main control chip 1 and A D conversion modules 7, main control chip 1 includes multiple
Position module 2, RTC timing modules 3, data memory module 4, voltage transformation module 5 and data communication module 6, icing perception sensing
Device 8 by A D conversion modules 7 transmit a signal to main control chip 1.
Icing detecting sensor 8 includes two semicircular ring insulation boards, as shown in figure 3, one side surface of semicircular ring insulation board is set
If being equipped with dry contact pair 9, contact pair 9 is all connected with control decoding gating module 11 and voltage processing acquisition module 12, control decoding
Gating module 11 and voltage processing acquisition module 12 be fixed in semicircular ring insulation board inside and with the A of digitized processing circuit
D conversion modules 7 are connected, if the also affixed dry temperature sensor 10 in another side surface of semicircular ring insulation board, 10 He of temperature sensor
The number of contact pair 9 is consistent, and temperature sensor 10 is all connected with control decoding gating module 11.
Semicircular ring insulation board bottom surface is provided with groove, the cross section semicircular in shape of groove, and the center of circle of groove is insulated with semicircle
The center of circle of plate overlaps, and the radius of groove is less than the radius of semicircle insulation board.
Contact pair 9 includes several metal contacts, and metal contact is respectively and fixedly connected to two semicircular rings insulation plate surfaces, and around
Semicircular ring insulation plate surface is uniformly distributed, and the metal contact number being located in two semicircular ring insulation plate surfaces is consistent.
Insulation crust is in cube structure, and straight slot, the cross section semicircular in shape of straight slot, semicircle are provided among cube bottom surface
The radius of shape is equal to the radius of groove.
Temperature sensor 10 and the position of metal contact correspond.
Main control chip 1 is STM8L microcontrollers.
Data communication module 6 is using 485 level as data output interface.
Main control chip 1 is mainly used for the acquisition of gating and data to icing detecting sensor 8, collected with sensor
Data are foundation, and measurement data is stored in data memory module 4, reach preset early warning value or hair in ice covering thickness
The time is sent, by measurement data and alert data by data communication module 6, is converted into 485 level, sends data to data prison
Backstage 17 is surveyed, data monitoring backstage 17 carries out the judgement of ice covering thickness and shape, display according to obtained data, realizes power transmission line
The measurement of road ice covering thickness and shape；Reseting module 2, the normal operation and realization sensor for ensureing sensor internal program are multiple
Position can be realized when ensureing that software and hardware problem occurs during long-play in sensor or host computer sends out reset command
It automatically resets, realizes the stable operation of sensor；RTC timing modules 3 record for realizing the time of sensor, keep sensing
The consistency of the record time and background apparatus time of device data, increases the accuracy in data transmission；Data memory module 4,
The storage of historical data and warning message for being obtained to sensor, storage content includes time and icing situation, external
It realizes that historical data is read when device needs, while can also realize alarm threshold value, send the User Defineds numbers such as interval time
According to storage, ensure power down or reset after, custom data still has preservation；Voltage transformation module 5 realizes outer end electricity
The voltage stabilizing of pressure provides safeguard for the safe operation of sensor；Data communication module 6 is connect using 485 level as data transmission
Mouthful, it is easy to implement the data exchange of sensor and device, ensures the upload of monitoring data and warning message accurately and timely；
The decoding gating module 11 of icing detecting sensor 8, the temperature for measuring medium resistive contact and measuring temperature
The gating of sensor, using away from conducting wire from the near to the remote, clockwise gate one by one successively by the way of, realize away from conducting wire from the near to the distant
Each position data collection analysis；Sensor contact pair 9 and temperature sensor 10, for realizing to whether being covered around conducting wire
The monitoring of ice handles acquisition module 12 as shown in Fig. 2, being powered first to contact pair 9.1 and temperature sensor 10.1 by voltage
Resistance between contact is converted into voltage signal, by A D conversion modules 7 be transferred to main control chip 1 realize contact between 9.1 be situated between
The measurement of the temperature signal of matter resistance and temperature sensor 10.1, after again successively gating 9.2 and 10.2 acquisition obtain data, and with
This analogizes, and after full contact pair and temperature sensor gathered data, the design parameter of icing around conducting wire can be obtained, realize conducting wire
The monitoring of surrounding icing；Voltage handles acquisition module 12, for the conversion of dielectric resistance between contact pair to voltage, according to partial pressure electricity
The principle on road carries out the partial pressure of resistance, and converting voltage to main control chip 1 can be with voltage measured directly.
A kind of icing sensor based on air Yu ice resistance characteristic difference of the present invention, cardinal principle are based on air and to cover
The different resistance characteristic of ice, between two mutually non-touching contacts in icing detecting sensor, full of icing and air
When, can have different resistance and different temperature, can directly measure away from the resistance and temperature between conducting wire different distance contact pair
Angle value, has that data are significantly different full of icing and when air, by the resistance value of medium between corresponding contact pair and corresponding
Temperature value, main control chip 1 judge that the data of measurement and result whether by icing, are stored in data and store mould by the contact position
Block 4, main control chip 1 according in RTC timing modules sending time or ice covering thickness reach threshold value when, lead to data communication module
6 are sent out data to data monitoring backstage 17, and the practical shape of powerline ice-covering is directly drawn out on data monitoring backstage 17
Shape, the intuitive monitoring result for showing ice covering thickness and icing shape.
A kind of method for detecting ice coating based on air Yu the icing sensor of ice resistance characteristic difference as described above, specifically
Operating procedure is as follows：
Step 1. installs digital icing sensor on transmission line of electricity；
The digital icing sensor electrifying startup of step 2., data monitoring backstage 17 send need the numerical information that sets to
The numerical information order received is carried out classification processing by the main control chip 1 of digital icing sensor, main control chip 1；
The main control chip 1 of the digital icing sensor of step 3. sends acquisition according to classification treated data information
To icing detecting sensor 8, Jie on transmission line of electricity is detected in contact pair 9 and temperature sensor 10 on icing detecting sensor 8
Matter situation, and will detect that the resistance value of medium and temperature value are uploaded to main control chip 1 on transmission line of electricity, main control chip 1 is incited somebody to action
To resistance value compared with historical data, to judge that the medium of 9 position of transmission pressure upper contact pair is ice or sky
Gas；
The medium information for 9 position of transmission pressure upper contact pair that step 4. main control chip 1 will determine that out is sent to data
The shape graph of the icing on transmission line of electricity is drawn on monitoring backstage 17, data monitoring backstage 17.
The concrete operations that digital icing sensor is installed in step 1 are as follows：First by the digital icing sensor
Groove part be stuck on transmission pressure that any position is with fixation, then by digital icing by way of wireless connection
Sensor is connect with device for monitoring icing 16, is finally connect device for monitoring icing 16 with data monitoring backstage 17, such as Fig. 4 institutes
Show, controls digital icing sensor electrifying startup.
The concrete operations of step 2 are as follows：
After digital wire icing sensor electrifying startup, reset operation is first carried out in reseting module 2, and all threshold values are answered
Then position by operation data monitoring backstage 17, the threshold of ice covering thickness is set according to the diameter of transmission pressure and bearing capacity ability
Value, according in the growth rate of icing on transmission line of electricity and complexity setting data collection interval 4-10min and data
Pass time interval 1.5-3h, according to the time of transmission line of electricity local environment situation set temperature alarm threshold value and sensor, then
Data communication module 6 of the data-signal to digital icing sensor is transmitted by 485 communication modes, and then is transferred to master control core
Piece 1, main control chip 1 judge the data-signal received, if it is threshold value and time interval order, are then automatically stored to
In data memory module 4, if it is sensor time, then the time of RTC timing modules 3 is configured, ensures digital cover
Ice sensor is consistent with the extraneous time；
The concrete operations of step 3 are as follows：
Step 3.1 main control chip 1 is according to the data collection interval received, regularly to icing detecting sensor 8
Control decoding gating module 11 send and connect signal, control decoding gating module 11 is to the contact pair 9 of icing detecting sensor 8
With temperature sensor 10 according to distance of wire from the near to the remote, clockwise successively by connecting, pass through 9 measure traverse line of contact pair
The resistance of icing and air, passes through the temperature around 10 measure traverse line of temperature sensor on upper each position；
The resistance value measured is uploaded to voltage and handles acquisition module 12 by step 3.2 icing detecting sensor 8, at voltage
Reason acquisition module 12 by resistance value be converted into A the voltage that can identify of D conversion modules 7, then, by A D conversion modules 7 pass
It is defeated by main control chip 1, main control chip 1 calculates the resistance of circuit by Ohm's law and voltage divider principle, to obtain contact pair 9
The resistance of the medium of measurement；The temperature value measured is transferred directly to main control chip 1, in turn, master control by icing detecting sensor 8
Chip 1 obtains the resistance and temperature data of icing and air on the transmission line of electricity of 8 transmission of icing detecting sensor, and by data
It is stored in data memory module 4；
Step 3.3 main control chip 1 is by the resistance and temperature data data and number of icing near the conducting wire of acquisition and air
Resistance value is analyzed by comparing algorithm comparison according to the historical data in memory module 4, since the resistance characteristic of icing and air has
Notable difference, thus icing data and the air data measured can be there are one apparent catastrophe point, mutated site icing and
At air interface, if apparent catastrophe point occurs in resistance Value Data, at icing and air interface, otherwise mutated site is
For air.Assuming that the position of sensor contact by sensor contact position icing as shown in figure 5, be labeled as " 1 " and non-icing mark
It is denoted as " 0 ", label result is assumed as shown in fig. 6, the figure is to indicate for convenience, to mark after restoring sensor contact position
Note, sensor internal labeling is then the label to icing position and non-icing position.
The concrete operations of step 4 are as follows：
After main control chip 1 judges the medium in icing detecting sensor 8 between contact pair 9, main control chip 1 is according to data
The signal for the transmission data that uplink time interval or data monitoring backstage 17 are sent, medium information between contact pair 9 is passed through
Data communication module 6 is transferred to data monitoring backstage 17, and data monitoring backstage 17 is according to the position of 8 upper contact of icing detecting sensor
Medium information between the contact pair 9 set and obtained, to the medium information of different contact position on icing detecting sensor 8 into rower
Note, and the figure of conducting wire overlying ice condition condition is drawn out, as shown in fig. 7, obtaining position and the thickness of icing from figure.
Claims (9)
1. the icing sensor based on air Yu ice resistance characteristic difference, which is characterized in that including icing detecting sensor (8),
One end of the icing detecting sensor (8) is connected by conducting wire with digitized processing circuit, the digitized processing circuit packet
Include insulation crust, be connected with inside the insulation crust main control chip (1) and A D conversion modules (7), the main control chip (1)
Including reseting module (2), RTC timing modules (3), data memory module (4), voltage transformation module (5) and data communication module
(6), using 485 level as data output interface, the icing detecting sensor (8) passes through the data communication module (6)
The A D conversion modules (7) transmit a signal to the main control chip (1)；
The icing detecting sensor (8) includes two semicircular ring insulation boards, and one side surface of semicircular ring insulation board is provided with
If dry contact is all connected with control decoding gating module (11) and voltage processing acquisition module (12) to (9), the contact to (9),
If the also affixed dry temperature sensor (10) in another side surface of the semicircular ring insulation board, the temperature sensor (10) and described
Contact is consistent to the number of (9), and the temperature sensor (10) is all connected with the control decoding gating module (11).
2. the icing sensor based on air Yu ice resistance characteristic difference as described in claim 1, which is characterized in that described every
A contact includes several metal contacts to (9), and the metal contact is respectively and fixedly connected to two semicircular rings insulation plate surfaces, and around
Described two semicircular ring insulation plate surfaces are uniformly distributed, the metal contact being located in two semicircular ring insulation plate surfaces
Number is consistent, and the temperature sensor (10) and the position of the metal contact correspond.
3. the icing sensor based on air Yu ice resistance characteristic difference as claimed in claim 2, which is characterized in that described half
Annulus insulation board bottom surface is provided with groove, and the cross section semicircular in shape of the groove, the center of circle of the groove and the semicircular ring are exhausted
The center of circle of listrium overlaps, and the radius of groove is less than the radius of the semicircular ring insulation board.
4. the icing sensor based on air Yu ice resistance characteristic difference as claimed in claim 2, which is characterized in that described exhausted
Edge shell is in cube, and straight slot, the cross section semicircular in shape of the straight slot, the semicircle are provided among the cube bottom surface
Radius be equal to the groove radius.
5. a kind of examined using the icing sensor icing based on air and ice resistance characteristic difference as described in claim 3 or 4
The method of survey, which is characterized in that concrete operation step is as follows：
Step 1. installs digital icing sensor on transmission line of electricity；
The digital icing sensor electrifying startup of step 2., data monitoring backstage (17), which is sent, needs the numerical information set to institute
The main control chip (1) of digital icing sensor is stated, main control chip (1) carries out the numerical information order received at classification
Reason；
The main control chip (1) of the digital icing sensor of step 3. according to classification treated data information send acquisition to
Icing detecting sensor (8), the contact on icing sensor (8) on (9) and temperature sensor (10) detection transmission line of electricity to being situated between
The resistance value and temperature of matter, and the resistance value of medium and temperature value on the transmission line of electricity detected are uploaded to main control chip (1),
Main control chip (1) compares obtained resistance value with historical data, to judge transmission pressure upper contact to (9) position
Medium be ice or air；
The transmission pressure upper contact that step 4. main control chip (1) will determine that out is sent to data to the medium information of (9) position
The icing shape graph on transmission line of electricity is drawn on monitoring backstage (17), data monitoring backstage (17).
6. the side that a kind of icing sensor icing as claimed in claim 5 based on air and ice resistance characteristic difference detects
Method, which is characterized in that the concrete operations that digital icing sensor is installed in the step 1 are as follows：It first will be described digital
The groove part of icing sensor is stuck in any position on transmission pressure, then will by way of wireless connection with fixation
Digital icing sensor is connect with device for monitoring icing (16), finally by device for monitoring icing (16) and data monitoring backstage
(17) it connects, controls digital icing sensor electrifying startup.
7. the side that a kind of icing sensor icing as claimed in claim 5 based on air and ice resistance characteristic difference detects
Method, which is characterized in that the concrete operations of the step 2 are as follows：
After digital wire icing sensor electrifying startup, reset operation is first carried out in the reseting module (2), by all threshold values
It resets, then, by operating the data monitoring backstage (17), icing is set according to the diameter of transmission pressure and bearing capacity ability
The threshold value of thickness, according to the growth rate of icing on transmission line of electricity and complexity setting data collection interval 4-10min
With data uplink time interval 1.5-3h, according to transmission line of electricity local environment situation set temperature alarm threshold value and sensor when
Between, then data-signal is transmitted to the data communication module (6) of digital icing sensor, Jin Erchuan by 485 communication modes
It is defeated by main control chip (1), main control chip (1) judges the data-signal received, is ordered if it is threshold value and time interval
It enables, is then automatically stored in the data memory module (4), if it is sensor time, then to the RTC timing modules (3)
Time be configured, ensure that digital icing sensor is consistent with the extraneous time.
8. the side that a kind of icing sensor icing as claimed in claim 5 based on air and ice resistance characteristic difference detects
Method, which is characterized in that the concrete operations of the step 3 are as follows：
Step 3.1 main control chip (1) is according to the data collection interval received, regularly to the icing detecting sensor
(8) control decoding gating module (11), which is sent, connects signal, and the control decoding gating module (11) perceives the icing
The contact of sensor (8) to (9) and temperature sensor (10) according to distance of wire from the near to the remote, successively by connecting, lead to
Cross contact on (9) measure traverse line on each position icing and air resistance, pass through temperature sensor (10) measure traverse line week
The temperature enclosed；
The resistance value measured is uploaded to the voltage processing acquisition module (12), institute by step 3.2 icing detecting sensor (8)
State voltage processing acquisition module (12) by resistance value be converted into the A the voltage that can identify of D conversion modules (7) then lead to
Cross A D conversion modules (7) be transferred to main control chip (1), main control chip (1) calculates circuit by Ohm's law and voltage divider principle
Resistance, to obtain the resistance for the medium that contact measures (9)；Icing detecting sensor (8) is straight by the temperature value measured
It connects and is transferred to main control chip (1), and then main control chip (1) obtains icing on the transmission line of electricity that icing detecting sensor (8) transmits
With the resistance and temperature data of air, and store data in data memory module (4)；
Step 3.3 main control chip (1) is by the resistance and temperature data data and data of icing near the conducting wire of acquisition and air
Historical data in memory module (4) analyzes resistance value by comparing algorithm comparison, if apparent dash forward occurs in resistance Value Data
Height, then mutated site is at icing and air interface, is otherwise air.
9. the side that a kind of icing sensor icing as claimed in claim 5 based on air and ice resistance characteristic difference detects
Method, which is characterized in that the concrete operations of the step 4 are as follows：
Main control chip (1) judges in icing detecting sensor (8) after medium of the contact between (9), main control chip (1) basis
Data uplink time interval or data monitoring backstage (17) send transmission data signal, by contact between (9) medium
Information is transferred to data monitoring backstage (17) by data communication module (6), and data monitoring backstage (17) perceives according to icing and passes
The medium information of the position of sensor (8) upper contact and obtained contact between (9), to different on icing detecting sensor (8)
The medium information of contact position is marked, and draws out the figure of conducting wire overlying ice condition condition, and the position of icing is obtained from figure
It sets and thickness.
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| CN116123984A (en) * | 2023-04-11 | 2023-05-16 | 湖南大学 | Ice and snow monitoring sensor and computing system and computing method thereof |
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