CN117930386A - Aerial ice accumulation measuring system and measuring method - Google Patents
Aerial ice accumulation measuring system and measuring method Download PDFInfo
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- CN117930386A CN117930386A CN202410093830.7A CN202410093830A CN117930386A CN 117930386 A CN117930386 A CN 117930386A CN 202410093830 A CN202410093830 A CN 202410093830A CN 117930386 A CN117930386 A CN 117930386A
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Abstract
The application provides an aerial ice deposition measuring system and a measuring method, wherein the aerial ice deposition measuring system comprises an ascending balloon, a fixed-height balloon, an ice deposition sensor and a ground receiver; the ascending balloon and the constant-height balloon are respectively connected with the ice accumulation sensor; the ice accumulation sensor is in communication connection with the ground receiver; the ascending balloon is released from the application point and ascends to a detection area with preset height; the ascending balloon can drive the constant-height balloon to ascend to the detection area and finish the detection of ice accumulation in the air; when the ascending balloon reaches the detection area, the ice accumulation sensor can control the ascending balloon to be separated from the ice accumulation sensor; and after the fixed-height balloon finishes the air ice accumulation detection, the ice accumulation sensor transmits a detection result to the ground receiver. The lifting balloon, the fixed-height balloon and the icing sensor can form a flat-floating balloon-mounted direct-measurement icing detection structure, so that the air icing condition can be continuously measured, and real-time guarantee information is provided for aviation flight, wherein the icing condition comprises an icing area and an icing rate.
Description
Technical Field
The application relates to the technical field of meteorological sounding, in particular to an air ice accumulation measuring system and an air ice accumulation measuring method.
Background
Aircraft icing refers to the phenomenon of ice build-up on certain parts of the surface of an aircraft during flight, and is recognized by the aviation world as one of six killers that pose a serious threat to flight safety. Therefore, the accurate measurement of the ice accumulation intensity and the ice accumulation rate of the aerial aircraft is very important to ensure the aviation flight safety.
At present, the measurement of ice accumulation of an air plane is divided into a remote sensing type and a direct measuring type. The remote sensing measurement mainly uses microwave remote sensing to measure the air temperature profile and the water vapor profile so as to deduce the situation of ice accumulation of the aircraft, and has the advantages of continuous measurement, wide range and the like, but has poor accuracy; the direct measurement type is an electrical type sensor and a mechanical type sensor, and the icing intensity and speed information are inverted according to the thickness of the ice layer attached to the sensor and the change of the electrical parameter and the mechanical vibration parameter, so that the direct measurement type sensor has the advantage of high accuracy, but the direct measurement type sensor is generally installed on an airplane, the airplane is required to enter an icing area to finish measurement, and the problems of poor timeliness, possible flight risk and the like exist.
Therefore, there is a need for an airborne ice measurement system and method to solve the technical problems in the prior art to a certain extent.
Disclosure of Invention
The application aims to provide an air ice accumulation measuring system and an air ice accumulation measuring method, which solve the technical problems in the prior art to a certain extent.
The application provides an aerial ice accumulation measuring system which comprises a lifting balloon, a fixed-altitude balloon, an ice accumulation sensor and a ground receiver, wherein the lifting balloon is arranged on the ground;
the ascending balloon and the constant-height balloon are respectively connected with the ice accumulation sensor; the ice accumulation sensor is in communication connection with the ground receiver;
the ascending balloon is released from the application point and ascends to a detection area with a preset height at a preset speed; the ascending balloon can drive the fixed-height balloon to ascend into the detection area and finish the detection of ice accumulation in the air;
When the rising air ball reaches the detection area, the ice accumulation sensor can control the rising air ball to be separated from the ice accumulation sensor;
and after the fixed-altitude balloon finishes the aerial ice accumulation detection, the ice accumulation sensor can transmit a detection result to the ground receiver.
In the above technical scheme, further, the aerial ice accumulation measuring system further comprises a remote control cutter;
The lifting balloon is connected with the ice accumulation sensor through a lifting line, and the fixed-height balloon is connected with the ice accumulation sensor through a fixed-height line; the ice accumulation sensor is in communication connection with the remote control cutter;
When the rising air ball reaches the detection area, the ice accumulation sensor can control the remote control cutter to cut the rising line so as to enable the rising air ball to be separated from the ice accumulation sensor;
When the fixed-height balloon finishes the aerial ice accumulation detection, the ice accumulation sensor can control the remote control cutter to cut the fixed-height line so as to enable the fixed-height air lifting balloon to be separated from the ice accumulation sensor.
In the above technical solution, further, the ice accumulation sensor has a Beidou positioning module;
The Beidou positioning module can acquire the position information of the ascending balloon, the position information of the fixed-altitude balloon and the air ice accumulation detection result of the fixed-altitude balloon.
In the above technical scheme, further, the ice accumulation sensor is further provided with a signal transmitting module in communication connection with the Beidou positioning module;
the signal transmitting module can transmit the position information of the ascending balloon and the position information of the fixed altitude balloon to the remote control cutter;
the signal transmitting module is also capable of transmitting the detection result to the ground receiver.
In the above technical solution, further, the ice accumulation sensor has a low-temperature charging module, and the low-temperature charging module is used for charging the ice accumulation sensor body.
In the above technical solution, further, the ice accumulation sensor is a magnetic resonance type ice accumulation sensor.
The application also provides an air ice accumulation measuring method based on the air ice accumulation measuring system; the aerial ice accumulation measuring method comprises the following steps:
Judging the potential ice accumulation height layer according to the air temperature and the wet profile output by the weather sonde;
Determining, namely determining the release point of the lifting balloon according to the wind direction and wind speed distribution of the potential ice accumulation height layer output by the weather sonde and the detection area, so that when the lifting balloon lifts to the potential ice accumulation height layer to fly horizontally, the wind of the potential ice accumulation height layer pushes the lifting balloon to fly, and the flying track passes through the detection area;
The method comprises the steps of adapting an aerial ice accumulation measuring system according to the height, applying a rising balloon at an applying point, and when the rising balloon enters a detection area, enabling an ice accumulation sensor to start a remote control cutter to separate the rising balloon from the ice accumulation sensor, enabling the ice accumulation sensor to fly in the detection area by the fixed-height balloon, and measuring the ice accumulation;
And the detection ending step is that the aerial ice accumulation measuring system flies in a detection area, and after the completion of the coverage of the detection area is confirmed, the ice accumulation sensor is pneumatically started to remotely control the cutter, the ice accumulation sensor is separated from the fixed-height balloon, and the detection task is ended.
In the above technical solution, further, the detection area is a high probability area of ice accumulation occurrence determined by combining weather forecast with seasonal ice accumulation area results;
the application point is at the upper tuyere of the detection area, and the ascending balloon and the application point meet the following relation so as to effectively cover the detection area;
Wherein h is the detection height, L is the distance between the application point and the upper wind direction edge of the detection area, v Lifting device is the average rising speed of the aerial ice accumulation measuring system, v Wind power is the average horizontal air speed, and T is the time consumption of the aerial ice accumulation measuring system to rise to the detection height;
Make the wind vector of each layer of air height be Then v Wind power can be determined as follows:
wherein each level is of And according to the measured value of the wind speed of the horizontal wind direction obtained by the weather sonde in a value taking mode, the time differential value dt is the measurement time interval of the weather sonde.
In the above technical solution, further, the detection height is determined according to an echo diagram of the weather radar and data output by the weather sonde.
In the above technical solution, further, after the airborne ice accumulation measurement system reaches the height, the ground receiver receives the change of the ice accumulation detection information along with the time-position in real time, and the change is represented by the sequence information represented by (x, y, t, H), where (x, y) is the current position information, t is the current moment, and H is the ice accumulation thickness.
Compared with the prior art, the application has the beneficial effects that:
The application provides an aerial ice accumulation measuring system which comprises a lifting balloon, a fixed-altitude balloon, an ice accumulation sensor and a ground receiver, wherein the lifting balloon is arranged on the ground;
the ascending balloon and the constant-height balloon are respectively connected with the ice accumulation sensor; the ice accumulation sensor is in communication connection with the ground receiver;
the ascending balloon is released from the application point and ascends to a detection area with a preset height at a preset speed; the ascending balloon can drive the fixed-height balloon to ascend into the detection area and finish the detection of ice accumulation in the air;
When the rising air ball reaches the detection area, the ice accumulation sensor can control the rising air ball to be separated from the ice accumulation sensor;
and after the fixed-altitude balloon finishes the aerial ice accumulation detection, the ice accumulation sensor can transmit a detection result to the ground receiver.
In conclusion, the lifting balloon, the fixed-height balloon and the icing sensor can form a flat-floating balloon-mounted direct-measurement icing detection structure, so that the air icing condition can be continuously measured, and real-time guarantee information is provided for aviation flight, wherein the icing condition comprises an icing area and an icing rate.
The application also provides an air ice accumulation measuring method based on the air ice accumulation measuring system; the aerial ice accumulation measuring method comprises the following steps:
Judging the potential ice accumulation height layer according to the air temperature and the wet profile output by the weather sonde;
Determining, namely determining the release point of the lifting balloon according to the wind direction and wind speed distribution of the potential ice accumulation height layer output by the weather sonde and the detection area, so that when the lifting balloon lifts to the potential ice accumulation height layer to fly horizontally, the wind of the potential ice accumulation height layer pushes the lifting balloon to fly, and the flying track passes through the detection area;
The method comprises the steps of adapting an aerial ice accumulation measuring system according to the height, applying a rising balloon at an applying point, and when the rising balloon enters a detection area, enabling an ice accumulation sensor to start a remote control cutter to separate the rising balloon from the ice accumulation sensor, enabling the ice accumulation sensor to fly in the detection area by the fixed-height balloon, and measuring the ice accumulation;
And the detection ending step is that the aerial ice accumulation measuring system flies in a detection area, and after the completion of the coverage of the detection area is confirmed, the ice accumulation sensor is pneumatically started to remotely control the cutter, the ice accumulation sensor is separated from the fixed-height balloon, and the detection task is ended.
In conclusion, the air ice accumulation measuring method is based on the air ice accumulation measuring system; the lifting balloon, the fixed-height balloon and the icing sensor can form a flat-floating balloon-mounted direct-measurement icing detection structure, so that the air icing condition can be continuously measured, and real-time guarantee information is provided for aviation flight, wherein the icing condition comprises an icing area and an icing rate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an aerial ice accumulation measurement system according to an embodiment of the present application;
FIG. 2 is a diagram showing the geometrical relationship between the application points and the detection area in the method for measuring ice accumulation in the air according to the second embodiment of the present application;
FIG. 3 is a line diagram of ice accumulation detection data in the method for measuring ice accumulation in the air according to the second embodiment of the application;
Fig. 4 is a distribution diagram of the intensity area of the icing area in the air icing measurement method according to the second embodiment of the present application.
Reference numerals: 1-lifting a balloon; 2-fixed-altitude balloon; 3-ice accumulation sensor; 4-remote control cutter; 5-a first flexible connection line; 6-a second flexible connection line.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Example 1
An air ice accumulation measuring system provided by the application is described in detail below with reference to fig. 1.
In this embodiment an airborne ice accretion measurement system is provided, comprising a lifting balloon 1, a fixed altitude balloon 2, an ice accretion sensor 3 and a ground receiver.
Specifically, the ascending balloon 1 and the fixed-height balloon 2 are respectively connected with the ice accumulation sensor 3; the ice accumulation sensor 3 is in communication connection with a ground receiver.
Specifically, the ascending balloon 1 and the fixed-height balloon 2 are released from the release point by carrying the ice accumulation measuring system, and are lifted to a detection area with preset height at a preset speed; the ascending balloon 1 is assisted to carry and then separated, and the ice accumulation measuring system carried by the fixed-height balloon 2 flies at a fixed height to finish the detection of ice accumulation in the air; in other words, the ascending balloon 1 and the constant-altitude balloon 2 together form a force applying member in the ascending stage, and the constant-altitude balloon 2 is a force applying member in the flat flight stage of the detection area.
In the actual use process, when the ascending balloon 1 reaches the detection area, the ice accumulation sensor 3 can control the ascending balloon 1 to be separated from the ice accumulation sensor 3, and when the ascending balloon 1 is separated from the ice accumulation sensor 3, the ascending balloon can continue to ascend independently and finally explode and crack. When the fixed-height balloon 2 finishes the air ice accumulation detection, the ice accumulation sensor 3 can transmit the detection result to a ground receiver.
In sum, the lifting balloon 1, the fixed-height balloon 2 and the icing sensor 3 can form a flat-floating balloon carrying direct-measurement icing detection structure, so that the air icing condition including icing area and icing rate can be continuously measured, and real-time guarantee information is provided for aviation flight.
In this implementation, the overhead ice accretion measurement system also includes a remote control cutter 4.
Specifically, the ascending balloon 1 is connected with the ice accumulation sensor 3 through a first flexible connecting wire 5, and the fixed-height balloon 2 is connected with the ice accumulation sensor 3 through a second flexible connecting wire 6; the ice accumulation sensor 3 is in communication connection with the remote control cutter 4.
In the actual use process, when the ascending balloon 1 reaches the detection area, the ice accumulation sensor 3 can control the remote control cutter 4 to cut the first flexible connecting line 5 so as to enable the ascending balloon 1 to be separated from the ice accumulation sensor 3;
When the fixed-height balloon 2 finishes the air ice accumulation detection, the ice accumulation sensor 3 can control the remote control cutter 4 to cut the second flexible connecting wire 6 so as to separate the fixed-height balloon from the ice accumulation sensor 3.
Notably, are: the construction of the above-described remote-controlled cutter 4 will be apparent to those skilled in the art and will not be specifically described herein.
In this embodiment, the ice accumulation sensor 3 has a Beidou positioning module.
Specifically, the Beidou positioning module can acquire the position information of the ice accumulation sensor and the air ice accumulation detection result of the fixed-altitude balloon 2.
In this embodiment, the ice accumulation sensor 3 further has a signal transmitting module in communication with the Beidou positioning module.
Specifically, the signal transmitting module can transmit the position information of the ascending balloon 1 and the position information of the fixed altitude balloon 2 to the remote control cutter 4.
In the actual use process, in the ascending process of the ascending balloon 1, the Beidou positioning module monitors the ascending height of the ice accumulation sensor in real time, when the ice accumulation sensor reaches the height, the Beidou positioning module can transmit a signal of the ice accumulation sensor reaching the height to the signal transmitting module, and then the signal transmitting module controls the remote control cutter 4 to cut off ascending.
In addition, the signal transmitting module can also transmit the detection result to a ground receiver.
In this embodiment, considering that the fixed-height balloon 2 will carry the ice accumulation sensor 3 to the high altitude, the low temperature charging module is arranged in the ice accumulation sensor 3 because the air temperature in the high altitude is low, and the low temperature charging module is used for charging the ice accumulation sensor 3 body.
In this embodiment, the ice accumulation sensor 3 is a magnetically resonant type ice accumulation sensor.
Example two
The method for measuring the ice accumulation in the air provided by the application is described in detail below with reference to fig. 2 to 4.
In the embodiment, an air ice accumulation measuring method is provided, and the air ice accumulation measuring method is based on the air ice accumulation measuring system; the aerial ice accumulation measuring method comprises the following steps:
a judging step 100 of judging a potential ice accumulation height layer according to the air temperature and the wet profile output by the weather sonde;
200, determining the release point of the ascending balloon 1 according to the wind direction and wind speed distribution of the potential ice accumulation height layer output by the weather sonde and according to the detection area, so that when the ascending balloon 1 ascends to the potential ice accumulation height layer to fly horizontally, the wind of the potential ice accumulation height layer pushes the ascending balloon to fly, and the flying track passes through the detection area;
The ice accumulation measuring step 300 is that according to the height-adaptive aerial ice accumulation measuring system, an ice accumulation measuring system carried by the lifting balloon 1 and the fixed-height balloon 2 is released at the release point, after the lifting balloon rises to the detection area, the ice accumulation sensor 3 is started to remotely control the cutter 4, the lifting balloon 1 and the ice accumulation sensor 3 are separated, and the fixed-height balloon 2 carries the ice accumulation sensor 3 to fly at the same height in the detection area and measure the ice accumulation;
And the detection ending step 400, namely the aerial ice deposition measuring system flies in a detection area, and after the completion of the coverage of the detection area is confirmed, the ice deposition sensor 3 is pneumatically started to remotely control the cutter 4, the ice deposition sensor 3 is separated from the fixed-height balloon 2, and the detection task is ended.
In this embodiment, as shown in fig. 2, the detection area is a high probability area of occurrence of ice accumulation determined by the temperature and humidity profile information obtained by weather exploration;
The application point is at the upper tuyere of the detection area, and the ascending air ball 1 and the application point meet the following relational expression so as to effectively cover the detection area;
Wherein h is the detection height, L is the distance between the application point and the upper wind direction edge of the detection area, v Lifting device is the average rising speed of the aerial ice accumulation measuring system, v Wind power is the average horizontal air speed, and T is the time consumption of the aerial ice accumulation measuring system to rise to the detection height;
Make the wind vector of each layer of air height be Then v Wind power can be determined as follows:
wherein each level is of And according to the measured value of the wind speed of the horizontal wind direction obtained by the weather sonde in a value taking mode, the time differential value dt is the measurement time interval of the weather sonde.
In this embodiment, the altitude is determined from the echo map of the weather radar and the data output by the weather sonde.
Specifically, the determined basis comprises a zero-degree layer height detected by a weather radar and a height layer with the air temperature lower than zero degree acquired by a conventional weather sonde.
Specifically, in order to control the ice accumulation sensor 3 to fly stably at the detection height under the carrying of the fixed-height balloon 2, a carrying system is formed by the lifting balloon 1 and the fixed-height balloon 2, the lifting force formed by the lifting balloon 1 and the fixed-height balloon 2 is larger than the gravity of the aerial ice accumulation measuring system, the lifting balloon 1 is separated after the lifting balloon rises to the upper wind direction edge of the detection area at a certain speed, the lifting force provided by the fixed-height balloon 2 and the residual gravity of the aerial ice accumulation measuring system in the flat flight stage form balance, and the aerial ice accumulation measuring system is controlled to fly under the pushing of wind power of the detection height layer.
After the detection area and the detection height are determined, firstly, the net lifting force of the fixed-height balloon 2 is determined according to the total weight of the ice accumulation sensor 3, the power supply, the second flexible connecting wire 6 and the like, so that the fixed-height balloon 2 is inflated according to the net lifting force requirement; secondly, according to the wind field distribution above the application point, comprehensively considering the geometric relation between the application point and the detection area, calculating the lifting speed requirement (to meet the arrangement of the detection task time length and suggest the lifting time length to be 300-500 seconds) by the detection height, determining the lifting force requirement of the lifting balloon 1, and quantitatively inflating the lifting balloon 1.
Specifically, the equilibrium state of the fixed altitude balloon 2: ρ h·g·V Fixing device ＝W Total (S) ;
Wherein ρ h is the detected altitude atmospheric density, g is the gravity coefficient, V Fixing device is the fixed altitude balloon 2 volume, and W Total (S) is the total weight of the airborne ice-deposition measurement system (excluding the ascending balloon 1).
In this embodiment, as shown in fig. 3, when the airborne ice measurement system reaches the height, the ground receiver will receive the change of the ice accumulation detection information with time-position in real time, and the change is represented by the sequence information represented by (x, y, t, H), where (x, y) is the current position information, t is the current moment, and H is the ice accumulation thickness.
Specifically, considering that the air speed in the convection layer is generally 0-20 m/s, the measurement frequency of the ice accumulation sensor 3 is 1-2 times/s, the horizontal displacement of the sounding system in 1 minute can be ignored, the ice accumulation rate delta h/delta t is calculated according to a time sequence, the ice accumulation intensity is estimated according to the calculated ice accumulation rate delta h/delta t, and the water vapor and temperature field products of the meteorological satellite cloud image are utilized to correspondingly manufacture an ice accumulation intensity distribution diagram, and the output information is shown in fig. 4.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present application without departing from the spirit or scope of the embodiments of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims and the equivalents thereof, it is intended that such modifications and variations be included in the embodiments of the present application.
Claims (10)
1. The aerial ice accumulation measuring system is characterized by comprising a rising balloon, a fixed-altitude balloon, an ice accumulation sensor and a ground receiver;
the ascending balloon and the constant-height balloon are respectively connected with the ice accumulation sensor; the ice accumulation sensor is in communication connection with the ground receiver;
The ascending balloon is released from the application point and ascends to a detection area with preset height at a preset speed; the ascending balloon can drive the fixed-height balloon to ascend into the detection area and finish the detection of ice accumulation in the air;
When the rising air ball reaches the detection area, the ice accumulation sensor can control the rising air ball to be separated from the ice accumulation sensor;
and after the fixed-altitude balloon finishes the aerial ice accumulation detection, the ice accumulation sensor can transmit a detection result to the ground receiver.
2. The airborne ice accretion measurement system of claim 1, further comprising a remote control cutter;
The lifting balloon is connected with the ice accumulation sensor through a flexible connecting wire, and the constant-height balloon is connected with the ice accumulation sensor through a flexible connecting wire; the ice accumulation sensor is in communication connection with the remote control cutter;
When the rising balloon reaches the detection area, the ice accumulation sensor can control the remote control cutter to cut the flexible connecting line of the rising balloon so as to separate the rising balloon from the ice accumulation sensor;
when the fixed-height balloon is carried in an auxiliary mode to finish aerial ice accumulation detection, the ice accumulation sensor can control the remote control cutter to cut the flexible connecting line of the fixed-height balloon, so that the fixed-height balloon is separated from the ice accumulation sensor.
3. The overhead ice accretion measurement system of claim 2, wherein the ice accretion sensor has a beidou positioning processing module;
the Beidou positioning processing module can acquire the position information of the ice accumulation sensor and the air ice accumulation detection result.
4. The overhead ice accumulation measurement system according to claim 3, wherein the ice accumulation sensor further has a signal transmitting module in communication with the Beidou positioning processing module;
The signal transmitting module can transmit the position information of the ice accumulation measuring system to the remote control cutter;
the signal transmitting module is also capable of transmitting the detection result to the ground receiver.
5. The airborne ice accretion measurement system of claim 1, wherein the ice accretion sensor has a low temperature charging module for charging the ice accretion sensor body.
6. The airborne ice accretion measurement system of claim 1, wherein the ice accretion sensor is a magnetically resonant ice accretion sensor.
7. An airborne ice accretion measurement method, characterized in that it is based on the airborne ice accretion measurement system as claimed in claim 4; the aerial ice accumulation measuring method comprises the following steps:
Judging the potential ice accumulation height layer according to the air temperature and the wet profile output by the weather sonde;
Determining, namely determining the release point of the lifting balloon according to the wind direction and wind speed distribution of the potential ice accumulation height layer output by the weather sonde and the detection area, so that when the lifting balloon lifts to the potential ice accumulation height layer to fly horizontally, the wind of the potential ice accumulation height layer pushes the lifting balloon to fly, and the flying track passes through the detection area;
the method comprises the steps of adapting an aerial ice accumulation measuring system according to the height, applying a rising balloon at an applying point, starting a remote control cutter by the ice accumulation sensor when the rising balloon enters a detection area, separating the rising balloon from the ice accumulation sensor, carrying the ice accumulation sensor by the fixed-height balloon to fly at the same height in the detection area, and measuring the ice accumulation;
And the detection ending step is that the aerial ice accumulation measuring system flies in a detection area, and after the completion of the coverage of the detection area is confirmed, the ice accumulation sensor is pneumatically started to remotely control the cutter, the ice accumulation sensor is separated from the fixed-height balloon, and the detection task is ended.
8. The method according to claim 7, wherein the detection area is a high probability area of ice accumulation occurrence determined by weather forecast in combination with seasonal ice accumulation area results;
the application point is at the upper tuyere of the detection area, and the ascending balloon and the application point meet the following relation so as to effectively cover the detection area;
Wherein h is the detection height, L is the distance between the application point and the upper wind direction edge of the detection area, v Lifting device is the average rising speed of the aerial ice accumulation measuring system, v Wind power is the average horizontal air speed, and T is the time consumption of the aerial ice accumulation measuring system to rise to the detection height;
Make the wind vector of each layer of air height be Then v Wind power can be determined as follows:
wherein each level is of And according to the measured value of the wind speed of the horizontal wind direction obtained by the weather sonde in a value taking mode, the time differential value dt is the measurement time interval of the weather sonde.
9. The airborne ice measurement method according to claim 7, wherein the detection altitude is determined based on an echo map of weather radar and data output from a weather sonde.
10. The method of measuring ice accumulation in the air according to claim 7, wherein the ground receiver receives the change of the ice accumulation detection information with time-position in real time after the air ice accumulation measuring system reaches the height, and the change is expressed by the sequence information expressed by (x, y, t, H), wherein (x, y) is the current position information, t is the current time, and H is the ice accumulation thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410093830.7A CN117930386A (en) | 2024-01-23 | 2024-01-23 | Aerial ice accumulation measuring system and measuring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410093830.7A CN117930386A (en) | 2024-01-23 | 2024-01-23 | Aerial ice accumulation measuring system and measuring method |
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| CN117930386A true CN117930386A (en) | 2024-04-26 |
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| CN202410093830.7A Pending CN117930386A (en) | 2024-01-23 | 2024-01-23 | Aerial ice accumulation measuring system and measuring method |
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