A device and method for realizing self-explosion function of a sounding balloon envelope

Abstract

The application relates to a realization method of a self-explosion function of a sounding balloon skin based on a satellite positioning module, wherein the satellite positioning module acquires navigation satellite signals in real time and sends the navigation satellite signals to a single-chip microcomputer minimum system according to a protocol format; after receiving the positioning information, the single-chip microcomputer analyzes the positioning information and sends the analyzed data to a display module in a serial port format, and meanwhile, the single-chip microcomputer completes over-limit range judgment, and if the over-limit range is exceeded, a low-level signal is output to a relay module; the display module is used for displaying the longitude and latitude data and the longitude and latitude directions; if the relay module receives the low-level signal sent by the single-chip microcomputer, the relay module controls the relay to connect a heating wire circuit; after the heating wire circuit is connected, the heating wire generates a thermal effect and is used for melting and breaking the balloon skin. The application solves the problem that the flight area of the sounding balloon cannot be controlled after the sounding balloon is released. The method is simple and convenient to operate, high in control precision, and has strong practical application value.

Description

Technical Field

[0001] This invention relates to a device and method for implementing the self-destruction function of a weather balloon based on a satellite positioning module. It belongs to the field of radio measurement technology. Background Technology

[0002] Space tracking ships conduct satellite tracking and control missions in the open ocean, and a crucial task is to periodically verify and test the performance of their onboard unified tracking and control radar to ensure it remains in optimal technical condition. Releasing a beacon sphere is a direct means for the shipboard unified tracking and control radar to obtain technical indicators such as photoelectric deviation and system tracking phase data. However, the beacon sphere, once released via a balloon carrier, is uncontrollable. During release, after each measuring device completes its photoelectric miss distance recording and tracking point frequency and phase calibration, the pulse radar and photoelectric theodolite must continue tracking until the beacon balloon explodes naturally, resulting in unnecessary waste of personnel and equipment. Sometimes, the balloon explosion cannot even be detected, leading to uncontrollable effects from the beacon sphere release. Summary of the Invention

[0003] The technical problem this invention aims to solve is to provide a device for realizing the self-destruction function of a weather balloon based on a satellite positioning module. This device is used to accurately and in real-time detonate the weather balloon's outer shell after the shipborne unified measurement and control radar obtains equipment calibration data, ensuring that the entire calibration process is autonomously controllable. This method can effectively reduce the waste of personnel and equipment and solve the problem of uncontrollable release of weather balloons.

[0004] The technical solution adopted by this invention to solve the above problems is as follows: a device for realizing the self-destruction function of a weather balloon skin based on a satellite positioning module, comprising a satellite positioning module, a single-chip microcomputer minimum system, a display module, a relay module, a system power supply module, a heating power supply module, and a heating wire. Power supply module 1 includes a 9V DC battery, a DC-DC step-down module, and a battery clip; power supply module 2 includes a 9V DC battery and a battery clip.

[0005] As a further optimization of the present invention, the satellite positioning module and the microcontroller minimum system are connected by DuPont wires.

[0006] As a further optimization of the present invention, the display module and the microcontroller minimum system are connected by DuPont wires.

[0007] As a further optimization of the present invention, the relay module and the microcontroller minimum system are connected by DuPont wires.

[0008] As a further optimization of the present invention, the relay module and the heating wire are connected by DuPont wires.

[0009] As a further optimization of the present invention, the system power module is connected to the satellite positioning module, the microcontroller minimum system, the display module, and the relay module via a power line, and the heating power module is connected to the heating wire via a power line to control the heating effect of the heating wire.

[0010] The satellite positioning module acquires navigation satellite signals in real time and sends them to the microcontroller minimum system according to the NMEA0183 protocol format. After receiving the positioning information, the microcontroller minimum system parses it and sends the parsed data to the display module in serial port format. At the same time, it performs out-of-range judgment. If the range is exceeded, it outputs a low-level signal to the relay module. The display module is used to display the parsed latitude and longitude data and latitude and longitude directions. When the relay module receives the low-level signal sent by the microcontroller, it controls the relay to turn on the heating wire circuit. After the heating wire circuit is turned on, the heating wire generates a thermal effect, converting electrical energy into heat energy to melt and break the ball skin. Power module 1 provides a +5V operating voltage to the satellite positioning module, the microcontroller minimum system, the display module, and the relay module. Power module 2 provides a +9V operating voltage to the heating wire.

[0011] On the other hand, the present invention provides a method for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module, the specific steps of which are as follows:

[0012] Step 1: First, connect the satellite positioning module to the microcontroller minimum system using DuPont wires. Then, connect the display module to the microcontroller minimum system using DuPont wires. Next, connect the relay module to the microcontroller minimum system using DuPont wires. Then, connect the relay module to the heating wire using DuPont wires. Finally, connect power module 1 and power module 2 to other modules using power cables.

[0013] Step 2: Set up an over-limit alarm range with a radius of 40km centered on the current release point, burn the control program into the microcontroller, and install the microcontroller into the microcontroller minimum system;

[0014] Step 3: Select a spacious area according to actual needs, turn on the system power module and heating power module, and wait for the satellite positioning module to lock normally and display correctly on the LCD screen of the display module.

[0015] Step 4: Fix the device near the weather balloon as needed, keep the heating wire close to the surface of the balloon, and release the weather balloon;

[0016] Step 5: The weather balloon determines in real time whether it exceeds the preset airspace range based on its own location. If it exceeds the preset range, the relay module is activated, the circuit connected to the heating wire is turned on, the heating wire melts and breaks the weather balloon skin, and the balloon explodes.

[0017] Furthermore, in step two, the satellite positioning module acquires navigation satellite signals in real time, and the microcontroller analyzes the location to determine if it exceeds the limit range. This mainly includes:

[0018] The satellite positioning module is configured to send only $GNGLL protocol frames (location geographic information) per second. The location geographic information begins with the $GNGLL message ID and contains information such as latitude, latitude direction, longitude, and longitude direction, all separated by commas. Then, the microcontroller's special function register SBUF uses its serial port interrupt function to segment the protocol frames and receive the data. The received $GNGLL protocol frame data is stored in a specified character array. The latitude and longitude information is extracted according to the element index in the array. After the latitude and longitude information is extracted, the character format is converted into the required data format through calculation to facilitate comparison and judgment of exceeding the limit range.

[0019] The aforementioned out-of-limit standards and setting methods include:

[0020] The out-of-limit range is set using the radius-centered method, that is, taking the latitude and longitude of the location where the weather balloon is released by the survey ship as the center, and taking into account factors such as the weather balloon must meet the radar far-field calibration conditions and the battery endurance, the balloon's flight radius is a circular area of ​​40km.

[0021] After the device is powered on and locks onto the navigation satellite, it can obtain the latitude and longitude information of the current measurement ship's location and store this information in the microcontroller's starting position character array as the center point A. After the weather balloon is released, the satellite positioning module continuously acquires and parses its own latitude and longitude data and stores this information in the character array as point B. At the same time, it calculates the distance between the two points on the Earth's surface and the latitude and longitude of the center point A. When the distance exceeds the set 40km, the microcontroller's P2.1 pin is set to "0", causing it to output a low level, triggering the relay module, which in turn starts the heating wire and detonates the balloon.

[0022] Let the Earth's center be O, and its radius be r. Two points on the Earth's surface can be represented by the Earth's radius, latitude, and longitude as follows: Given coordinates A(x1, y1, z1) and B(x2, y2, z2) in the Earth's rectangular coordinate system, the distance between two points on the Earth's surface can be calculated using the vector dot product and arc length formulas:

[0023]

[0024] The geocentric angle ∠AOB between the two points can be calculated by the following formula:

[0025]

[0026] The formula for calculating the distance between two points on the Earth's surface is as follows:

[0027]

[0028] Where r is the Earth's radius (km), Let θ be the distance (km) between two points on the Earth's surface. This refers to the latitude and longitude (rad) of a point on the Earth's surface.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] This invention solves the problem of uncontrollable flight areas after weather balloon release, effectively reducing waste of personnel and equipment. The method employs a domestically developed modular design, is simple and convenient to operate, and offers high control precision, making it highly valuable for practical applications. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of a device for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module, provided in an embodiment of the present invention.

[0032] Figure 2 This is a schematic diagram of the system hardware connection of a device for realizing the self-destruction function of a weather balloon skin based on a satellite positioning module, provided in an embodiment of the present invention.

[0033] Figure 3 This is a flowchart illustrating the positioning information parsing process of a device for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module, provided in an embodiment of the present invention.

[0034] Figure 4 This is a system flowchart of a device for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module, provided in an embodiment of the present invention. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1 As shown, this embodiment provides a device for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module. The device includes a satellite positioning module, a single-chip microcomputer minimum system, a display module, a relay module, power module 1 (system power module), power module 2 (heating power module), and a heating wire. Power module 1 includes a 9V DC battery, a DC-DC step-down module, and a battery clip; power module 2 includes a 9V DC battery and a battery clip.

[0037] In this embodiment, the satellite positioning module is the ATGM336H-5N-3X navigation chip and its built-in ceramic antenna from Zhongke Microelectronics Co., Ltd.; the microprocessor is the STC89C52RC 8-bit microcontroller from Hongjing Technology Co., Ltd.; the display module is the LCD1602 liquid crystal display module; the relay module is a 1-channel 5V / 12V / 24V relay module with optocoupler isolation and support for high and low level triggering; the power supply module 1 consists of a 9V DC battery, a DC-DC step-down module, and a battery clip, which can convert +9V to +5V power output to provide +5V power to the satellite positioning module, the microcontroller minimum system, the display module, and the relay module; the power supply module 2 consists of a 9V DC battery and a battery clip, which provides +9V power to the heating wire separately.

[0038] The following are the specific steps for implementing the self-detonation function of a weather balloon based on a satellite positioning module:

[0039] Step 1: As Figure 2 As shown, firstly, the satellite positioning module is connected to the microcontroller minimum system via DuPont wires. Then, the display module is connected to the microcontroller minimum system via DuPont wires. Next, the relay module is connected to the microcontroller minimum system via DuPont wires. Then, the relay module is connected to the heating wire via DuPont wires. Finally, the power module 1 and power module 2 are connected to other modules via power lines.

[0040] Step 2: Set up an over-limit alarm range with a radius of 40km centered on the current release point, burn the control program into the microcontroller, and install the microcontroller into the microcontroller minimum system;

[0041] Step 3: Select a spacious area according to actual needs, turn on power module 1 and power module 2, and wait for the satellite positioning module to lock normally and display correctly on the LCD screen of the display module.

[0042] Step 4: Fix the device near the weather balloon as needed, keep the heating wire close to the surface of the balloon, and release the weather balloon;

[0043] Step 5: The weather balloon determines in real time whether it exceeds the preset airspace range based on its own location. If it exceeds the preset fence range, the relay module is activated, the circuit connected to the heating wire is turned on, the heating wire melts the weather balloon skin, and the balloon explodes.

[0044] The location information begins with the $GNGLL message ID and contains information such as latitude, latitude direction, longitude, and longitude direction, all separated by commas. The protocol frame data format is shown in Table 1.

[0045] Table 1. GNGLL Protocol Frame Data Format Framework

[0046]

[0047]

[0048] Parsing the $GNGLL protocol frame refers to extracting the required latitude and longitude information from the data frame. The microcontroller's SBUF stores the received $GNGLL protocol frame data into a specified character array. It then extracts the latitude and longitude information based on the element index in the array. After extraction, the character format is converted into the required data format through calculations for easy comparison and judgment. See the flowchart for the location information parsing process. Figure 4 When the navigation module is not locked, the indicator light will remain on but not flash, indicating that the module has started working but has not yet completed positioning. It needs to wait for several minutes in an open area before it can lock properly. When not locked, the LCD screen will display garbled characters. After the navigation module is locked, the indicator light will start flashing regularly, and the LCD screen will be able to display latitude and longitude information correctly.

[0049] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. A device for realizing the self-destruction function of a weather balloon skin based on a satellite positioning module, characterized in that... The device includes a satellite positioning module, a microcontroller minimum system, a display module, a relay module, a system power module, a heating power module, and a heating wire. The satellite positioning module, display module, relay module, and microcontroller minimum system are connected via DuPont wires. The relay module and heating wire are also connected via DuPont wires. The system power module is connected to the satellite positioning module, microcontroller minimum system, display module, and relay module via power lines. The heating power module is connected to the heating wire via a power line, controlling the heating effect of the heating wire. The satellite positioning module acquires navigation satellite signals in real time and sends them to the microcontroller minimum system according to a protocol format. After receiving the positioning information, the microcontroller minimum system parses it and sends the parsed data to the display module in serial port format. It also performs an out-of-range judgment; if the range is exceeded, it outputs a low-level signal to the relay module. The display module displays the parsed latitude and longitude data and directions. When the relay module receives the low-level signal from the microcontroller, it controls the relay to activate the heating wire circuit. Once the heating wire circuit is activated, the heating wire generates heat to melt and break the sphere.

2. The method for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module according to claim 1, characterized in that... The method includes the following steps: Step 1: First, connect the satellite positioning module to the microcontroller minimum system using DuPont wires. Then, connect the display module to the microcontroller minimum system using DuPont wires. Next, connect the relay module to the microcontroller minimum system using DuPont wires. Then, connect the relay module to the heating wire using DuPont wires. Finally, connect the system power module and the heating power module to other modules using power cables. Step 2: Set up an over-limit alarm range with a radius of 40km centered on the current release point, burn the control program into the microcontroller, and install the microcontroller into the microcontroller minimum system; Step 3: Select a spacious area according to actual needs, turn on the system power module and heating power module, and wait for the satellite positioning module to lock normally and display correctly on the LCD screen of the display module. Step 4: Fix the device near the weather balloon as needed, keep the heating wire close to the surface of the balloon, and release the weather balloon; Step 5: The satellite positioning module acquires navigation satellite signals in real time, and the microcontroller analyzes its own location and determines in real time whether it exceeds the preset airspace range. If it exceeds the set range, the relay module is activated, the circuit connected to the heating wire is turned on, the heating wire melts and breaks the outer skin of the weather balloon, and the balloon explodes.

3. The method for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module according to claim 2, characterized in that... The satellite positioning module acquires navigation satellite signals in real time, and the microcontroller analyzes the location to determine if it exceeds the limit range, including: The satellite positioning module is configured to send out only protocol frames containing location geographic information per second. The location geographic information includes latitude, latitude direction, longitude, and longitude direction, all separated by commas. The microcontroller's special function register then uses its serial port interrupt function to segment the protocol frames and receive the data. The received protocol frame data is stored in a specified character array. The latitude and longitude information is extracted based on the element index in the array. After extraction, the character format is converted into the required data format through calculation to facilitate comparison and judgment of exceeding the limit range.

4. The method for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module according to claim 3, characterized in that... The standards and methods for setting limits beyond the specified range include: 1) The radius-centered method is adopted for the out-of-limit range, that is, the latitude and longitude of the location where the weather balloon is released by the measurement ship is taken as the center. Combined with the fact that the weather balloon must meet the radar far-field calibration conditions and the battery endurance factor, the balloon flight radius is a circular area of ​​40km. 2) After the device is powered on and locks onto the navigation satellite, it can obtain the latitude and longitude information of the current location of the measuring ship and store this information in the starting position character array of the microcontroller as the center point A. After the weather balloon is released, the satellite positioning module continuously obtains and parses its own latitude and longitude data and stores this information in the character array as point B. At the same time, it calculates the distance between the two points on the Earth's surface with the latitude and longitude of the center point A. When the distance exceeds the set 40km, the microcontroller's P2.1 pin is set to "0" to output a low level, triggering the relay module, which in turn starts the heating wire and detonates the balloon.

5. The method for implementing the self-destruction function of a weather balloon skin based on a satellite positioning module according to claim 4, characterized in that... The distance between two points on the Earth's surface is calculated as follows: Let the Earth's center be O, and its radius be r. Let two points on the Earth's surface be represented by the Earth's radius, latitude, and longitude as A(r, θ1, φ1) and B(r, θ2, φ2), respectively. Their coordinates in the Earth's rectangular coordinate system are A(x1, y1, z1) and B(x2, y2, z2). Calculate the distance between the two points on the Earth's surface using the vector dot product and arc length formulas: The geocentric angle ∠AOB between the two points is calculated by the following formula: The formula for calculating the distance between two points on the Earth's surface is as follows: Where r is the Earth's radius (km), Let θ be the distance (km) between two points on the Earth's surface. This refers to the latitude and longitude (rad) of a point on the Earth's surface.

Images