CN113607098A - Icing monitoring device and method based on ultrasonic sensor - Google Patents
Icing monitoring device and method based on ultrasonic sensor Download PDFInfo
- Publication number
- CN113607098A CN113607098A CN202110495446.6A CN202110495446A CN113607098A CN 113607098 A CN113607098 A CN 113607098A CN 202110495446 A CN202110495446 A CN 202110495446A CN 113607098 A CN113607098 A CN 113607098A
- Authority
- CN
- China
- Prior art keywords
- ultrasonic sensor
- early warning
- icing
- circular ring
- ultrasonic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004458 analytical method Methods 0.000 claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims description 46
- 230000005540 biological transmission Effects 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- 230000005284 excitation Effects 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims description 12
- 238000003384 imaging method Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000002592 echocardiography Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 11
- 238000004590 computer program Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 238000007710 freezing Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
- G01B17/02—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
- G01W1/04—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed giving only separate indications of the variables measured
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention provides an icing monitoring device and method based on an ultrasonic sensor, which comprises the following steps: the ultrasonic sensor and the gateway early warning system are connected with each other; the ultrasonic sensor is used for transmitting ultrasonic waves to an object to be detected and receiving a reflected echo; and the gateway early warning system is used for carrying out icing early warning analysis by utilizing the received reflected echo image and issuing risk early warning based on the icing early warning analysis result. The technical scheme of the invention can monitor the icing information more accurately and accurately release the risk early warning information.
Description
Technical Field
The invention relates to the technical field of power transmission line monitoring, in particular to an icing monitoring device and method based on an ultrasonic sensor.
Background
The transmission line is an important component of power grid engineering and should have sufficient safety and reliability. Once damaged, the normal operation of power supply facilities is affected, which causes inconvenience to daily production and life of people, and serious people also cause disasters such as fire disasters, casualties and expensive repair and reconstruction cost. As global warming becomes more and more, the occurrence of severe weather tends to increase.
The existing ice coating monitoring system for the power transmission line is mainly used for estimating the temperature, humidity, wind direction and wind speed by monitoring the temperature, humidity, wind direction and wind speed close to the ground, and a visual monitoring system is mainly provided with a simple camera, is greatly influenced by rain, snow, fog and the like, and has the defects of insufficient measurement precision, unclear image, inaccurate ice coating state judgment, untimely early warning and the like.
Disclosure of Invention
In order to solve the defects of insufficient measurement precision, unclear image, inaccurate judgment of icing state, untimely early warning and the like of the ice coating monitoring system of the power transmission line in the prior art, the invention provides an ice coating monitoring device based on an ultrasonic sensor, which comprises: the ultrasonic sensor and the gateway early warning system are connected with each other;
the ultrasonic sensor is used for transmitting ultrasonic waves to an object to be detected and receiving a reflected echo;
and the gateway early warning system is used for carrying out icing early warning analysis by utilizing the received reflected echo image and issuing risk early warning based on the icing early warning analysis result.
Preferably, the ultrasonic sensor includes: the piezoelectric actuator comprises a coupling protective layer, a shell with an opening at one end, an excitation controller positioned in the shell, an electric wire, two circular ring array arrangement electrodes and a composite piezoelectric material positioned between the two circular ring array arrangement electrodes;
the opening of the shell is connected with the coupling protective layer to form a closed cavity;
a connecting port is arranged on the surface opposite to the opening of the shell;
one of the two electrodes arranged in the circular ring array is in contact with the coupling protection layer, and the other electrode is connected with one end of the lead;
the other end of the wire is connected with the connecting port;
one end of the excitation controller is connected with the electric wire, and the other end of the excitation controller is connected with the connecting port;
and the excitation controller is used for controlling the circular ring array arrangement electrodes to emit ultrasonic waves to the object to be measured based on the delay time of each circular ring electrode in the circular ring array arrangement electrodes relative to the outermost circular ring electrode.
Preferably, the determination of the delay time of each ring electrode in the ring array arrangement electrodes relative to the outermost ring electrode includes:
acquiring the distance from an object to be detected to the center of the circular ring array arrangement electrodes of the ultrasonic sensor and the distance from the central point between the circular rings of the circular ring array arrangement electrodes to the center of the circular ring array arrangement electrodes;
calculating the distance from the central point between the circular rings to the air path of the object to be measured based on the distance from the object to be measured to the center of the circular ring array arrangement electrode of the ultrasonic sensor and the distance from the central point between the circular rings to the center of the circular ring array arrangement electrode;
and dividing the difference between the distance from the center point between the outermost ring and the adjacent ring to the air path of the object to be detected and the distance from the center point between the other rings to the air path of the object to be detected by the sound velocity to obtain the delay time of the corresponding ring relative to the outermost ring for transmitting the ultrasonic waves.
Preferably, the composite piezoelectric material is a 1-3 type composite piezoelectric material.
Preferably, the device further comprises a filling material positioned in the closed cavity.
Preferably, the gateway early warning system includes: the signal analysis platform and the communication module are connected with each other;
the signal analysis platform is used for imaging the received reflection echoes, determining the icing condition of each region based on the color of each region in imaging and the preset icing threshold corresponding to each color, and displaying the icing early warning information of each region;
and the communication module is used for sending the icing early warning information to an intelligent terminal.
Preferably, the system also comprises a microclimate monitoring system which is respectively connected with the ultrasonic sensor and the gateway early warning system;
the microclimate monitoring system is used for monitoring meteorological data around the power transmission line, comparing the monitored meteorological data with preset icing conditions, determining whether to send a starting signal to the ultrasonic sensor or not, and sending the meteorological data to the gateway early warning system at the same time.
Preferably, the method further comprises the following steps: the ice melting device is laid on the shell of the ultrasonic sensor;
and the ice melting device is used for heating the shell of the ultrasonic sensor according to the received starting signal sent by the meteorological monitoring system to start the ultrasonic sensor to work.
Preferably, the gateway early warning system further includes: the weather early warning module is connected with the communication module;
and the weather early warning module is used for carrying out weather early warning analysis based on the weather data and the early warning threshold value sent by the microclimate monitoring system.
Preferably, the microclimate monitoring system includes: the system comprises a starting device, a thermometer, a hygrometer, a barometer and a wind speed and direction monitor, wherein the thermometer, the hygrometer, the barometer and the wind speed and direction monitor are all connected with the starting device;
the thermometer is used for measuring the temperature of the environment around the power transmission line;
the hygrometer is used for measuring the humidity of the surrounding environment of the power transmission line;
the barometer is used for measuring the air pressure around the power transmission line;
the wind speed and direction monitor is used for measuring the wind speed and the wind direction around the power transmission line;
and the starting device is used for judging based on data monitored by the thermometer, the hygrometer, the barometer and the wind speed and direction monitor and a preset icing condition and determining whether to send a starting signal to the ultrasonic monitoring system.
Based on the same inventive concept, the invention also provides an icing monitoring method based on the ultrasonic sensor, which comprises the following steps:
the ultrasonic sensor transmits ultrasonic waves to an object to be measured and receives reflected echoes;
the gateway early warning system utilizes the received reflected echo imaging to carry out icing early warning analysis and issues risk early warning based on icing early warning analysis results.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an icing monitoring device based on an ultrasonic sensor, which comprises: the ultrasonic sensor and the gateway early warning system are connected with each other; the ultrasonic sensor is used for transmitting ultrasonic waves to an object to be detected and receiving a reflected echo; and the gateway early warning system is used for carrying out icing early warning analysis by utilizing the received reflected echo image and issuing risk early warning based on the icing early warning analysis result. The technical scheme of the invention can monitor the icing information more accurately and accurately release the risk early warning information.
Drawings
FIG. 1 is a schematic view of an ultrasonic sensor according to the present invention;
FIG. 2 is a schematic view of an ultrasonic sensor-based ice coating monitoring device of the present invention;
FIG. 3 is a schematic diagram of a circular array of ultrasonic transducers according to the present invention;
FIG. 4 is a focusing schematic of an ultrasonic sensor of the present invention;
FIG. 5 is a diagram of a circular ring type ultrasonic signal simulation performed by Matlab according to the present invention;
FIG. 6 is a graph of an experiment conducted on a focusing signal of an ultrasonic sensor of the present invention by Matlab;
FIG. 7 is a graph of the thin ice cover test results of the present invention;
wherein, 1, exciting a controller; 2. arranging electrodes in a circular ring array; 3. a composite piezoelectric material; 4. a filler material; 5. a housing; 6. an electric wire; 7. a connecting port; 8. and coupling the protective layer.
Detailed Description
The existing ice coating monitoring system for the power transmission line is mostly estimated by microclimate or assisted by simple visual detection systems such as a camera and the like, cannot determine the instant ice coating condition and is greatly influenced by weather. The invention which partially uses infrared and optical fiber sensors for ice coating monitoring is not popularized and used in large area because of high cost and difficult installation and debugging. The common ultrasonic sensor cannot give out timely early warning because a clear image cannot be obtained due to large ultrasonic air loss.
Example 1:
the invention provides an ultrasonic sensor which can focus energy to obtain a clearer image, can regulate the focusing position and provides convenience for being suitable for different positions. A monitoring and early warning system is provided by combining the novel array sensor, noise reduction analysis is carried out on the measurement result, more accurate simulation is carried out on the thickness of the ice layer of the cable, and a reliable early warning signal is sent out through an intelligent gateway.
An ultrasonic sensor, as shown in fig. 1, comprising: the piezoelectric actuator comprises a coupling protective layer 8, a shell 5 with an opening at one end, an excitation controller 1 positioned in the shell 5, an electric wire 6, two circular ring array arrangement electrodes 2 and a composite piezoelectric material 3 positioned between the two circular ring array arrangement electrodes 2;
the opening of the shell 5 is connected with the coupling protection layer 8 to form a closed cavity;
a connecting port 7 is arranged on the surface opposite to the opening of the shell 5;
one of the two circular ring array arrangement electrodes 2 is in contact with the composite piezoelectric material 3, and the other is connected with one end of the lead;
the other end of the wire 6 is connected with the connecting port 7;
one end of the excitation controller 1 is connected with the electric wire 6, and the other end of the excitation controller is connected with the connecting port 7.
The composite piezoelectric material 3 is a 1-3 type composite piezoelectric material.
The heating wire is also included;
the heating wire is wrapped outside the shell 5.
The device also comprises a filling material 4 positioned in the closed cavity, wherein the filling material 4 can be air or other liquid, but when the filling material is liquid, the controller 1 cannot be excited, so that the liquid is prevented from influencing the function of the excitation controller 1.
Example 2:
in combination with the ultrasonic sensor in embodiment 1, the present invention also provides an ice coating monitoring device based on the ultrasonic sensor, including: the system comprises an ultrasonic monitoring system and a gateway early warning system which are connected with each other;
the ultrasonic monitoring system is used for transmitting ultrasonic waves to an object to be detected and receiving reflected echoes;
and the gateway early warning system is used for carrying out icing early warning analysis by utilizing the received reflected echo image and issuing risk early warning based on the icing early warning analysis result.
The concrete description is as follows:
the utility model provides an icing monitoring devices based on ultrasonic sensor, still includes little meteorological monitoring system for temperature, humidity, atmospheric pressure, wind speed and direction data around the monitoring transmission line to compare the data of monitoring and the condition of freezing of preset, confirm whether to ultrasonic monitoring system sends enabling signal, sends meteorological data to gateway early warning system simultaneously.
(1) Microclimate monitoring system
The microclimate monitoring system comprises an air temperature thermometer, a hygrometer, a barometer and a wind speed and direction monitor, and the microclimate monitoring system is usually independent and only exists in a meteorological monitoring station with a small number of towers, so that the number of data fed back by each tower cannot be reached. The integrated module integrates the monitoring meters into a precise single-chip microcomputer chip, and a large box is arranged at a proper position of a tower together with the ultrasonic monitoring system.
A solar panel is additionally arranged on the surface of the box for supplying power.
The system integrates various meteorological monitoring devices in the prior art, transmits data such as air temperature, humidity, wind speed, wind direction and air pressure to a grid early warning system through a gateway, creates a numerical weather forecast, and integrates large-area meteorological data and visually displays the meteorological data so as to facilitate monitoring of workers at any time.
Meanwhile, the microclimate monitoring system is also used for starting the ultrasonic system. The microclimate monitoring system comprises a starting device, and a thermometer, a hygrometer, a barometer and a wind speed and direction monitor which are all connected with the starting device.
(2) Freezing conditions were set in the starting device.
When the data monitored by the thermometer, the hygrometer, the barometer and the wind speed and direction monitor simultaneously meet the freezing conditions that the air temperature is lower than minus 2 ℃, the humidity is greater than 70 percent and the wind speed is greater than 7m/s, the starting device sends a wake-up signal to the ultrasonic system to start the ultrasonic system. When the freezing condition is not met, the ultrasonic system is not started, and unnecessary electric quantity consumption is greatly reduced. The starting module can be realized by a single chip microcomputer, and can also be parameterized and changed according to local historical meteorological data measured by each monitor so as to perfectly match the requirements of different regions.
(3) Ultrasonic monitoring system
When the freezing condition is met, the ultrasonic monitoring system receives a starting signal and then starts the ice melting device in the ultrasonic module. Thin ice around the sensor is melted through a heating wire mesh arranged on the shell of the ultrasonic sensor, and continuous operation of the ultrasonic sensor is guaranteed. The ultrasonic module is composed of an ultrasonic sensor and an ice melting device.
Internal structure of ultrasonic sensor
The ultrasonic sensor in this application has add the setting that the electrode was arranged to the ring array and arouse controller 1 on current ultrasonic sensor basis. The excitation controller 1 and the circular ring array arrangement electrodes 2 are matched to emit focused sound beams, and compared with single ultrasonic measurement in the prior art, more accurate measurement is achieved. The focused acoustic beam is also referred to herein as an ultrasound signal.
The ultrasonic sensors are synchronously started to work to emit focused sound beams. The ultrasonic sensor is made of 1-3 type piezoelectric composite materials, and the focusing is realized by the array arrangement of surface circular rings. The specific sensor configuration is shown in fig. 2, and the circular array is shown in fig. 3.
Focusing principle and calculation of ultrasonic sensor
Because the circular ring arrangement presents axisymmetric arrangement, the model can be simplified into a half-side two-dimensional model. As shown in fig. 4, the distance difference between each ring and a specified focus point is calculated by using the center distance of the ring as a calculation point in the ring focusing principle calculation, and a time delay table is calculated to set the excitation controller 1. The center of a ring is also referred to herein as the midpoint between two rings, and refers to the center point of the inner and outer circle radii.
In this formula, n is the number of the ring, dnIs the air path distance from the center point of the nth circle to the focus position, dxnAnd dynAre respectively dnIs projected axially.
In this formula, tnIs the path time of the n-th circle, douterPath time of the farthest circle, CairIs the speed of sound 345 m/s.
The excitation controller 1 controls the sound wave emission time, namely, each ring in the ring array arrangement electrodes 2 can independently emit ultrasonic waves, and the exciter enables each ring to emit sound waves at different times according to a time delay table so as to finish focusing.
Not only focusing but also the focus position can be adjusted by setting the excitation controller 1. Can be according to the position adjustment focus position of power transmission line, compare in prior art can't adjust focus position's ultrasonic sensor can only remove ultrasonic sensor's position and realize the focus, practical application is very inconvenient.
Early warning system for gateway
The gateway early warning system includes: the signal analysis platform and the communication module are connected with each other;
the signal analysis platform is used for imaging the received reflection echoes, determining the icing condition of each region based on the color of each region in imaging and the preset icing threshold corresponding to each color, and displaying the icing early warning information of each region;
and the communication module is used for sending the icing early warning information to an intelligent terminal.
The gateway early warning system further comprises: the weather early warning module is connected with the communication module;
and the weather early warning module is used for carrying out weather early warning analysis based on the weather data and the early warning threshold value sent by the microclimate monitoring system.
The communication module can perform high-reliability short-distance micro-power wireless transmission, has small frequency band interference and long communication distance, and is suitable for long-time transmission of small data volume. The plug and play of the terminal is realized, the network access configuration work is not required to be carried out on the equipment installation site, and the direct access of the sensing terminal is supported.
Comparing and analyzing the reflected echo image transmitted by the ultrasonic sensor and the transmitted meteorological signal to obtain ice coating thickness information;
and the weather early warning module determines an early warning signal according to the weather signal, the icing thickness information and a preset early warning grade division standard. When the wind speed is overlarge, the meteorological early warning module transmits an early warning signal to the signal analysis platform, and the signal analysis platform can send out different levels of strong wind early warnings; when the air temperature is too low, the weather early warning module transmits the early warning signal to the signal analysis platform, and can send out an icing early warning on the signal analysis platform and prompt that the ultrasonic signal is started; and when severe weather continues, the signal analysis platform sends out a pre-warning of the icing in combination with the ultrasonic signal. Meanwhile, the early warning information can be transmitted to the intelligent terminal through the communication module, and power transmission line maintenance personnel can observe the icing information of the power transmission line in time through the reminding of the intelligent terminal equipment.
When the ultrasonic signals are transmitted back to the signal analysis platform, noise reduction images can be generated, and the ice coating condition of a specific position can be observed in real time by clicking.
The invention has the following effects:
(1) the icing monitoring device based on the ultrasonic sensor is provided, numerical weather forecast is created, a multi-dimensional safety guarantee platform is helped to be built, the problem of difficulty in monitoring in a large area range is solved, and a safety guarantee system is perfected.
(2) The device combines a circular array type ultrasonic sensor for the first time, improves the detection energy in a focusing mode, can obtain clearer, multi-area and instant data, realizes the replacement of manpower by equipment and greatly improves the inaccuracy of prediction by weather data in the past.
(3) By the method, the disaster risk can be forecasted more quickly, the disaster protection and the emergency repair strategy can be set up for a large amount of time for workers, the maintenance cost is reduced, and the influence on life and production caused by long-term interrupted electricity can be reduced.
The key points and points to be protected of the application are as follows:
(1) the large-area weather risk early warning platform system of the first part of the invention acquires and integrates data through the microclimate acquisition module, the transmission module and the ultrasonic module, and carries out early warning prompt according to instant data, so that the requirement of multi-equipment login and check can be met.
(2) The second part of the invention provides an improvement means of an ultrasonic module, and by carrying out the annular array type electrode and the excitation controller, the ultrasonic monitoring energy is better enhanced, and the ice coating detail information of the power transmission line is provided.
(3) The second part of the invention provides that the ultrasonic module can be used independently according to different conditions, and different data can be detected according to the characteristics of ultrasonic waves, such as pole tower icing, pole tower welding spot quality detection, foundation cracks, dynamic galloping distance measurement and the like.
Example 3:
(1) focusing simulation and experiment comparison
The simulation of the circular ring type ultrasonic signal by Matlab is shown in fig. 5, and the acoustic wave superposition processing is performed by loading air impedance and simulating the time control of a signal generator. The experiment uses a needle-type detector to perform an energy scan of the spatial field to generate a field map.
The energy focusing can be seen from the experimental diagram of the focusing signal of the ultrasonic sensor shown in fig. 6 by performing simulation and experiment according to the focusing principle.
(2) Small-area manual icing experiment
Thin ice was placed on an aluminum steel plate and the sensor was scanned and, as can be seen in fig. 7, the ice coated areas were clearly distinguished from the non-ice coated areas. Therefore, in practical application, the thickness of the thin ice can be obtained by comparing the real-time data with the data which is set by the system at first and is not coated with the ice, and the sensor does not need to be moved, or the manual operation is not needed.
Example 4
The invention based on the same inventive concept also provides an icing monitoring method based on the ultrasonic sensor, which comprises the following steps:
the ultrasonic sensor transmits ultrasonic waves to an object to be measured and receives reflected echoes;
the gateway early warning system utilizes the received reflected echo imaging to carry out icing early warning analysis and issues risk early warning based on icing early warning analysis results.
Ultrasonic sensor launches the ultrasonic wave to the determinand, and the receipt reflection echo includes:
acquiring the distance from an object to be detected to the center of the circular ring array arrangement electrodes of the ultrasonic sensor and the distance from the central point between the circular rings of the circular ring array arrangement electrodes to the center of the circular ring array arrangement electrodes;
calculating the distance from the center point between the circular rings to the air path of the object to be measured based on the distance from the object to be measured to the center of the circular ring array arrangement electrode 2 of the ultrasonic sensor and the distance from the center point between the circular rings to the center of the circular ring array arrangement electrode 2;
dividing the difference between the distance from the center point between the outermost ring and the adjacent ring to the air path of the object to be measured and the distance from the center point between the other rings to the air path of the object to be measured by the sound velocity to obtain the delay time of the corresponding ring relative to the outermost ring for transmitting ultrasonic waves;
the excitation controller 1 controls the circular ring array arrangement electrodes to emit ultrasonic waves to the object to be measured based on the delay time of each circular ring electrode in the circular ring array arrangement electrodes 2 relative to the outermost circular ring electrode, and receives the reflected echo.
The gateway early warning system utilizes the reflection echo formation of image of receipt to icing early warning analysis to based on icing early warning analysis result issue the risk early warning, include:
the signal analysis platform images the received reflection echoes, determines the icing condition of each region based on the color of each region in the imaging and the preset icing threshold corresponding to each color, and displays the icing early warning information of each region;
and the communication module sends the icing early warning information to an intelligent terminal.
Further comprising: the micrometeorological monitoring system monitors meteorological data around the power transmission line, compares the monitored meteorological data with a preset icing condition, determines whether to send a starting signal to the ultrasonic sensor or not, and simultaneously sends the meteorological data to the gateway early warning system.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the scope of the claims of the present invention which are filed as the application.
Claims (11)
1. An icing monitoring device based on an ultrasonic sensor, comprising: the ultrasonic sensor and the gateway early warning system are connected with each other;
the ultrasonic sensor is used for transmitting ultrasonic waves to an object to be detected and receiving a reflected echo;
and the gateway early warning system is used for carrying out icing early warning analysis by utilizing the received reflected echo image and issuing risk early warning based on the icing early warning analysis result.
2. The ultrasonic sensor-based ice coating monitoring device of claim 1 wherein the ultrasonic sensor comprises: the piezoelectric actuator comprises a coupling protective layer, a shell with an opening at one end, an excitation controller positioned in the shell, an electric wire, two circular ring array arrangement electrodes and a composite piezoelectric material positioned between the two circular ring array arrangement electrodes;
the opening of the shell is connected with the coupling protective layer to form a closed cavity;
a connecting port is arranged on the surface opposite to the opening of the shell;
one of the two electrodes arranged in the circular ring array is in contact with the coupling protection layer, and the other electrode is connected with one end of the lead;
the other end of the wire is connected with the connecting port;
one end of the excitation controller is connected with the electric wire, and the other end of the excitation controller is connected with the connecting port;
and the excitation controller is used for controlling the circular ring array arrangement electrodes to emit ultrasonic waves to the object to be measured based on the delay time of each circular ring electrode in the circular ring array arrangement electrodes relative to the outermost circular ring electrode.
3. The ultrasonic sensor-based ice monitoring device of claim 2, wherein the determination of the delay time of each ring electrode relative to the outermost ring electrode in the ring array arrangement of electrodes comprises:
acquiring the distance from an object to be detected to the center of the circular ring array arrangement electrodes of the ultrasonic sensor and the distance from the central point between the circular rings of the circular ring array arrangement electrodes to the center of the circular ring array arrangement electrodes;
calculating the distance from the central point between the circular rings to the air path of the object to be measured based on the distance from the object to be measured to the center of the circular ring array arrangement electrode of the ultrasonic sensor and the distance from the central point between the circular rings to the center of the circular ring array arrangement electrode;
and dividing the difference between the distance from the center point between the outermost ring and the adjacent ring to the air path of the object to be detected and the distance from the center point between the other rings to the air path of the object to be detected by the sound velocity to obtain the delay time of the corresponding ring relative to the outermost ring for transmitting the ultrasonic waves.
4. The ultrasonic sensor-based ice cover monitoring device of claim 2 wherein the composite piezoelectric material is a type 1-3 composite piezoelectric material.
5. The ultrasonic sensor-based ice coating monitoring device of claim 2 further comprising a filler material in the closed cavity.
6. The ultrasonic sensor-based ice coating monitoring device of claim 1, wherein the gateway pre-warning system comprises: the signal analysis platform and the communication module are connected with each other;
the signal analysis platform is used for imaging the received reflection echoes, determining the icing condition of each region based on the color of each region in imaging and the preset icing threshold corresponding to each color, and displaying the icing early warning information of each region;
and the communication module is used for sending the icing early warning information to an intelligent terminal.
7. The ultrasonic sensor-based ice coating monitoring device of claim 6, further comprising a microclimate monitoring system connected to the ultrasonic sensor and the gateway warning system, respectively;
the microclimate monitoring system is used for monitoring meteorological data around the power transmission line, comparing the monitored meteorological data with preset icing conditions, determining whether to send a starting signal to the ultrasonic sensor or not, and sending the meteorological data to the gateway early warning system at the same time.
8. The ultrasonic sensor-based ice coating monitoring device of claim 7, further comprising: the ice melting device is laid on the shell of the ultrasonic sensor;
and the ice melting device is used for heating the shell of the ultrasonic sensor according to the received starting signal sent by the meteorological monitoring system to start the ultrasonic sensor to work.
9. The ultrasonic sensor-based ice coating monitoring device of claim 7, wherein the gateway pre-warning system further comprises: the weather early warning module is connected with the communication module;
and the weather early warning module is used for carrying out weather early warning analysis based on the weather data and the early warning threshold value sent by the microclimate monitoring system.
10. The ultrasonic sensor-based ice coating monitoring device of claim 7 wherein said microclimate monitoring system comprises: the system comprises a starting device, a thermometer, a hygrometer, a barometer and a wind speed and direction monitor, wherein the thermometer, the hygrometer, the barometer and the wind speed and direction monitor are all connected with the starting device;
the thermometer is used for measuring the temperature of the environment around the power transmission line;
the hygrometer is used for measuring the humidity of the surrounding environment of the power transmission line;
the barometer is used for measuring the air pressure around the power transmission line;
the wind speed and direction monitor is used for measuring the wind speed and the wind direction around the power transmission line;
and the starting device is used for judging based on data monitored by the thermometer, the hygrometer, the barometer and the wind speed and direction monitor and a preset icing condition and determining whether to send a starting signal to the ultrasonic monitoring system.
11. An icing monitoring method based on an ultrasonic sensor is characterized by comprising the following steps:
the ultrasonic sensor transmits ultrasonic waves to an object to be measured and receives reflected echoes;
the gateway early warning system utilizes the received reflected echo imaging to carry out icing early warning analysis and issues risk early warning based on icing early warning analysis results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495446.6A CN113607098A (en) | 2021-05-07 | 2021-05-07 | Icing monitoring device and method based on ultrasonic sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495446.6A CN113607098A (en) | 2021-05-07 | 2021-05-07 | Icing monitoring device and method based on ultrasonic sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113607098A true CN113607098A (en) | 2021-11-05 |
Family
ID=78336411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110495446.6A Pending CN113607098A (en) | 2021-05-07 | 2021-05-07 | Icing monitoring device and method based on ultrasonic sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113607098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086368A (en) * | 2023-03-07 | 2023-05-09 | 中国空气动力研究与发展中心低速空气动力研究所 | Icing thickness detection method, icing thickness detection device and storage medium |
-
2021
- 2021-05-07 CN CN202110495446.6A patent/CN113607098A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116086368A (en) * | 2023-03-07 | 2023-05-09 | 中国空气动力研究与发展中心低速空气动力研究所 | Icing thickness detection method, icing thickness detection device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280005B (en) | Early warning system for fire prevention of forest based on infrared thermal imaging technology and method | |
| KR102554336B1 (en) | Apparatus and method for monitoring power facilities | |
| US7883316B2 (en) | Monitoring the operation of a wind energy plant | |
| KR102553453B1 (en) | Apparatus and method of unmaned aerial vehicle for power facilities inspection monitoring | |
| CN108762307B (en) | High-rise building natural gas riser safety precaution system based on unmanned aerial vehicle detects | |
| KR101770620B1 (en) | comprehensive weather observation system by realtime remote management based on IoT | |
| CN110705917A (en) | Robot supervision system applied to construction site | |
| CN202853912U (en) | Train fault detecting device | |
| CN113569914B (en) | Point cloud data fusion type power transmission line inspection method and system | |
| CN207163563U (en) | A kind of contactless vibration detection device | |
| CN105954815A (en) | Mobile multifunctional weather station | |
| CN113607098A (en) | Icing monitoring device and method based on ultrasonic sensor | |
| CN110470379A (en) | A kind of substation's movable-type intelligent noise continuous collecting system | |
| JP2013061726A (en) | On-vehicle snow accumulation measuring apparatus | |
| WO2023197517A1 (en) | Distributed optical fiber-based intelligent monitoring system and method for strain and temperature of bullet tank | |
| CN110736502A (en) | Icing monitoring and early warning system and method based on multi-information fusion | |
| CN103854434A (en) | Sand excavation work monitoring and evidence obtaining system | |
| CN107995414A (en) | Intelligent safety defense monitoring system and monitoring method | |
| CN105966424A (en) | High-definition railway line safety monitoring system based on laser positioning | |
| CN202306238U (en) | Tank region oil tank intelligent monitoring device based on Internet of things | |
| CN109471205B (en) | Monitoring and early warning method based on gridding meteorological data in power grid operation | |
| CN111754738B (en) | Roof fire collapse early warning device based on temperature field and positioning and use method | |
| CN108106682B (en) | Multi-channel ultrasonic open channel flowmeter | |
| CN110568786A (en) | Blasting monitoring system and method for blasting construction of central urban area | |
| CN109490892A (en) | A kind of method for real-time monitoring for compensation device of casting anchor, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |