Calculation method of hydrogen balloon ground flying spot

Abstract

The invention discloses a method for calculating a hydrogen balloon ground flying spot, and belongs to the field of air target positioning. The method comprises the step of providing accurate wind field compensation through a layered model and reverse deduction aiming at the problems that existing hydrogen balloon release is greatly influenced by a wind field and needs to be subjected to trial release for multiple times. Firstly, coordinates of an aerial target point are determined, the height from the ground to the target point is equally divided into multiple layers, and moving time of each layer of a balloon is calculated; acquiring the wind speed and the wind direction angle of each height layer; and finally, calculating horizontal coordinates layer by layer from a high layer to a low layer by adopting a reverse algorithm based on the wind speed, the wind direction angle and the moving time by taking the target point as a starting point, and finally obtaining the coordinates of the ground flying spot. According to the invention, one-time precise flying can be realized, the working efficiency is obviously improved, and the dependence on weather conditions is reduced.

Description

Technical Field

[0001] This invention belongs to the field of aerial target positioning technology, specifically relating to a method for calculating and determining the ground launch point of a hydrogen balloon in complex wind field environments, enabling it to accurately reach a predetermined spatial location. Background Technology

[0002] In various measurements and experiments requiring the establishment of fixed reference points in the air, hydrogen balloons are commonly used as markers. Traditionally, they are launched from the ground directly below the target point. Under calm or light wind conditions, the balloon can rise approximately vertically to the target. However, in practical applications, wind speed and direction vary with altitude, creating complex wind fields. During ascent, the balloon is affected by horizontal winds, causing its trajectory to deviate significantly from the pre-set plumb line, making it impossible to accurately reach the target location.

[0003] To ensure the balloon lands safely, current technology typically relies on the operator's experience, involving repeated attempts, observation, and manual adjustment of the launch point. This method is inefficient, highly dependent on weather conditions, and extremely reliant on the operator's experience, making it impractical in situations with tight deadlines or unpredictable weather. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of low efficiency and severe wind field influence in existing hydrogen balloon launch methods, which rely on manual trial and error. This invention proposes a method for calculating the ground launch point of hydrogen balloons. By introducing meteorological wind field parameters and employing layered reverse calculation, this method can quickly and accurately calculate the theoretical launch point location, which is unaffected by wind fields. This ensures that the hydrogen balloon accurately reaches the target point in the air on a single launch.

[0005] To achieve the above objectives, the technical solution provided by this invention is:

[0006] One approach provides a method for calculating the ground launch point of a hydrogen balloon, including the following steps:

[0007] Step 1: Determine the coordinates of aerial target point B in the preset coordinate system. ,in , The horizontal coordinates of the target point The vertical height of the target point;

[0008] Step 2, set the vertical height of the target point Divided into equal parts Calculate the height of each of the three height levels. And based on the rising speed of the hydrogen balloon Calculate the time required for the balloon to traverse each altitude level. ;

[0009] Step 3: Obtain the wind speed at each altitude level between the ground and the target point B in the air. and wind direction angle ,in The floor number is the sequence number. ;

[0010] Step 4, using the horizontal coordinates of target point B Starting from the ground launch point A', and based on the movement time of each layer calculated in step 2 and the wind speed and wind direction angle of each height layer obtained in step 3, the horizontal coordinates of the next lower layer are calculated layer by layer using a reverse algorithm, based on the order from high to low layers. Finally, the horizontal coordinates of the ground launch point A' are obtained. ;

[0011] Among them, the Horizontal coordinates of the layer According to its superior level Horizontal coordinates of the layer Wind speed and wind direction angle The calculation formula is as follows:

[0012]

[0013]

[0014] In the formula, The value is from Up to 0.

[0015] Furthermore, in step 4, spreadsheet software or data processing software is used to perform layer-by-layer recursive calculations.

[0016] Furthermore, in step 2, the ascent speed of the hydrogen balloon below 1000 meters... The air velocity is 3.5 m / s to 4 m / s.

[0017] Furthermore, in step 3, the wind speed at each altitude level... and wind direction angle Acquired through weather radar.

[0018] Furthermore, the wind angle is the angle between the wind direction and due north.

[0019] Furthermore, in step 2, the number of height layers... Select according to the required calculation accuracy. The larger the value, the higher the calculation accuracy.

[0020] On the other hand, an electronic device is provided, comprising: one or more processors; and a memory storing a computer program thereon, which, when executed by the one or more processors, performs the aforementioned method for calculating the ground launch point of the hydrogen balloon.

[0021] Another aspect provides a computer-readable medium storing a computer program that, when executed by a processor, performs the aforementioned method for calculating the ground launch point of the hydrogen balloon.

[0022] The advantages of this invention are:

[0023] The method for calculating the ground launch point of a hydrogen balloon provided by this invention, by introducing precise meteorological wind field data and constructing a hierarchical inverse extrapolation model, achieves accurate prediction and compensation of the hydrogen balloon's trajectory in complex wind fields. This allows for the one-time, high-precision calculation of the theoretically optimal ground launch point, guiding actual operations. Even when affected by varying wind fields at different altitudes during ascent, the hydrogen balloon can automatically drift and ultimately accurately reach the preset aerial target location. This not only completely avoids the time, manpower, and material costs of multiple launches, greatly improving operational efficiency, but also significantly reduces reliance on operator experience, making precise launches possible under non-ideal weather conditions. This significantly enhances the reliability and practicality of the technology in various real-world application scenarios. Attached Figure Description

[0024] The above and / or other features and advantages of the present invention will become more readily understood from the following description with reference to the accompanying drawings, in which:

[0025] Figure 1 This is a schematic diagram of a hydrogen balloon rising vertically from point A directly below the target point to point B under ideal windless weather conditions.

[0026] Figure 2 This is a diagram illustrating how, in windy weather, a hydrogen balloon needs to be launched from point A', the calculated upwind direction, to reach target point B.

[0027] Figure 3 This is a schematic diagram showing the height levels of the balloon from the ground to the target point B in the air.

[0028] Figure 4 This is a schematic diagram showing the coordinate shift of a balloon within a single altitude plane due to the influence of wind speed and direction.

[0029] Figure 5 This is a schematic diagram of the interface for calculating the X-axis coordinate using office software;

[0030] Figure 6 This is a schematic diagram of the interface for calculating the Y-axis coordinate using office software;

[0031] Figure 7 This is a schematic diagram of the layer-by-layer calculation process of the X-direction coordinate in practical applications;

[0032] Figure 8 This is a schematic diagram of the layer-by-layer calculation process of the Y-direction coordinate in practical applications. Detailed Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments thereof. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the scope of the invention.

[0034] The method for calculating the ground launch point of a hydrogen balloon provided by this invention lies in its ability to accurately compensate for the influence of wind fields on the trajectory of the hydrogen balloon through a layered model and reverse deduction. This method can be widely applied in various engineering fields requiring aerial reference points, and is particularly suitable for measurement tasks such as weapon system verification, providing a stable and accurate aerial reference point for the system. The method generally includes the following steps: First, determine the three-dimensional coordinates of the aerial target point; second, divide the vertical distance from the ground to the target point into several equal layers, and calculate the balloon's travel time in each layer based on its ascent speed; next, acquire the wind speed and direction data for each altitude layer; finally, starting from the aerial target point, and based on the wind field data and travel time of each layer, use a reverse algorithm to calculate the horizontal coordinates layer by layer from top to bottom until the precise location of the ground launch point is obtained.

[0035] The invention will now be described in detail using the example of a hydrogen balloon reaching a target point at an altitude of 1,000 meters. This is to simulate a certain type of weapon system during the debugging process, where a hydrogen balloon is required to reach a predetermined target point at an altitude of 1,000 meters for measurement equipment to track, collect, and calibrate.

[0036] The method for calculating the ground launch point of a hydrogen balloon, as an exemplary embodiment of the present invention, includes the following steps:

[0037] Step S1: Determine the coordinates of the aerial target point.

[0038] Based on the weapon system's measurement coordinate system, the coordinates of target point B are set as follows: This point is the aerial location that the system needs to simulate and observe. , The horizontal coordinates of the target point relative to the weapon system. This refers to the vertical altitude of the target point relative to the weapon system. Under ideal, windless conditions, the balloon should rise vertically from point A, directly below the target point, as shown below. Figure 1 As shown; however, under windy conditions, the aircraft must be launched from point A', which is located upwind, as shown in the diagram. Figure 2 As shown.

[0039] Step S2, Height Layer Division and Time Calculation

[0040] Divide the height from the ground to 1000 meters into 10 equal layers. Then the height of each floor The height layer is divided as follows Figure 3 As shown. In this embodiment, the following is selected. This invention is not intended to limit the scope of the invention. In practical applications, adjustments can be made flexibly to meet different precision requirements. The value, for example, if higher precision is required, can be... Increasing the value to, for example, 20, reduces the height of each floor to 50 meters, thus improving the calculation accuracy.

[0041] Typical ascent speed of a hydrogen balloon below 1000 meters The speed ranges from 3.5 m / s to 4 m / s; this embodiment selects 4 m / s to calculate the time required for the balloon to traverse each altitude level. .

[0042] Step S3: Obtain wind field data

[0043] Wind speeds at 10 altitude levels, from the ground (level 1) to the target altitude (level 10), are obtained using meteorological measurement equipment such as weather radar or radiosonde data. and wind direction angle ( ), where the wind direction angle is the angle between the wind direction and due north.

[0044] Step S4, calculate based on the inverse algorithm of wind field and time.

[0045] The coordinates of the aerial target point B Using the acquired wind data at each layer as the starting point for calculation , and the calculated layer movement time The calculation is performed in reverse, layer by layer, from the upper level (10th floor) to the lower level (1st floor).

[0046] Calculate the coordinates of the 9th layer :

[0047]

[0048]

[0049] The horizontal offset principle upon which this calculation is based is as follows: Figure 4 As shown. To improve computational efficiency, this method can be performed using spreadsheet software or data processing software for layer-by-layer recursive calculations. Figure 5 and Figure 6The diagrams show the interface for implementing X and Y coordinates using the office software Excel. Preset formulas allow for rapid recursive calculations of large amounts of data, with results directly output.

[0050] Then, the coordinates of layers 8 through 1 are calculated sequentially.

[0051] Finally, calculate the coordinates of the ground launch point A'. :

[0052]

[0053]

[0054] The coordinates This refers to the relative position coordinates of the ground launch point A', which are ultimately calculated. Figure 7 and Figure 8 The demonstrations showcase the practical application process of recursively calculating X and Y coordinates layer by layer. The user sequentially inputs the layer number, balloon ascent speed, layer travel time, wind speed, wind direction angle, and X and Y coordinate points. Wind speed and wind direction angle are imported from the database, while the relative coordinates of the target point are directly input. The user then enters the formulas shown in the diagram into the X and Y coordinate point lists. The software can then directly output the ground points. The relative coordinates.

[0055] In actual operation, a hydrogen balloon is launched from calculation point A'. During its ascent, the actual horizontal displacement caused by the wind cancels out the calculated path, ultimately ensuring that the balloon's horizontal position is precisely stabilized at the weapon system's preset target point B when it reaches an altitude of 1000 meters. This provides the system with a one-time, high-precision aerial static target, effectively ensuring the efficiency and accuracy of weapon system debugging and measurement tasks, and overcoming the drawbacks of previous methods that required multiple launches and were heavily dependent on weather conditions.

[0056] Furthermore, it should be noted that the method of this invention is also applicable to target altitudes exceeding 1000 meters, and its technical solution has good scalability. In this case, the ascent speed of the hydrogen balloon needs to be corrected according to the atmospheric environment (for example, as altitude increases, air density decreases, and the balloon's ascent speed may increase), and the movement time of each altitude layer should be adjusted accordingly. During calculation, only parameter correction is needed in step S2, and the logic and process of subsequent reverse calculation are completely consistent. For example, if the target altitude is 2000 meters, the airspace can be divided into more layers, and different balloon ascent speed values ​​can be assigned to different altitude ranges, thereby ensuring that even in higher airspaces, the accurate launch point can be calculated using this method.

[0057] Those skilled in the art will understand that all or part of the aforementioned calculation process can be performed manually or by instructing related hardware through a computer program. Specifically, the electronic device may include one or more processors and a memory; the aforementioned calculation method can be programmed into a computer program and stored in the memory. When the processor executes the program, it can automatically implement the aforementioned steps and quickly output the coordinates of the ground points. The processors involved may be general-purpose processors, central processing units, graphics processing units, digital signal processors, and programmable logic devices, etc. Furthermore, computer-readable media storing the aforementioned computer program, such as USB flash drives, hard disks, or server storage, are also within the scope of protection of this invention.

[0058] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present invention can be combined in the same or similar manner with one or more other embodiments, combined with or substituted for corresponding features in other embodiments. These combined or substituted technical solutions should also be considered to be included within the scope of protection of the present invention.

Claims

1. A method for calculating the ground launch point of a hydrogen balloon, characterized in that, Includes the following steps: Step 1: Determine the coordinates of aerial target point B in the preset coordinate system. ,in , Let be the horizontal coordinates of the target point. The vertical height of the target point; Step 2, set the vertical height of the target point Divided into equal parts Calculate the height of each of the three height levels. And based on the rising speed of the hydrogen balloon Calculate the time required for the balloon to traverse each altitude level. ; Step 3: Obtain the wind speed at each altitude level between the ground and the target point B in the air. and wind direction angle ,in The floor number is the sequence number. ; Step 4, using the horizontal coordinates of the target point B Starting from the ground launch point A', and based on the movement time of each layer calculated in step 2 and the wind speed and wind direction angle of each height layer obtained in step 3, the horizontal coordinates of the next lower layer are calculated layer by layer using a reverse algorithm, based on the order from high to low layers. Finally, the horizontal coordinates of the ground launch point A' are obtained. ; Among them, the Horizontal coordinates of the layer According to its superior level Horizontal coordinates of the layer Wind speed and wind direction angle The calculation formula is as follows: In the formula, The value is from Up to 0.

2. The method for calculating the ground launch point of a hydrogen balloon according to claim 1, characterized in that: In step 4, spreadsheet software or data processing software is used to perform layer-by-layer recursive calculations.

3. The method for calculating the ground launch point of a hydrogen balloon according to claim 1, characterized in that: In step 2, the ascent speed of the hydrogen balloon below 1000 meters... The air velocity is 3.5 m / s to 4 m / s.

4. The method for calculating the ground launch point of a hydrogen balloon according to claim 1, characterized in that: In step 3, the wind speed at each altitude level and wind direction angle Acquired through weather radar.

5. The method for calculating the ground launch point of a hydrogen balloon according to claim 4, characterized in that: The wind direction angle is the angle between the wind direction and due north.

6. The method for calculating the ground launch point of a hydrogen balloon according to any one of claims 1 to 5, characterized in that: In step 2, the number of height layers Select according to the required calculation accuracy. The larger the value, the higher the calculation accuracy.

7. An electronic device, characterized in that, include: One or more processors; A memory having a computer program stored thereon, which, when executed by the one or more processors, performs the method for calculating the ground launch point of the hydrogen balloon as described in any one of claims 1 to 6.

8. A computer-readable medium, characterized in that: It stores a computer program, which, when executed by a processor, performs the method for calculating the ground launch point of the hydrogen balloon as described in any one of claims 1 to 6.

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