Air-drop data acquisition test device

Abstract

The invention provides an air-drop data acquisition test device which comprises a projectile body, a projectile body empennage arranged at the tail of the projectile body and a power supply assembly arranged in the projectile body, a product to be tested and a data recorder are arranged at the bottom of the projectile body, the data recorder is connected with the product to be tested through an adapter, and the adapter is connected with the power supply assembly. The adapter is connected with the bottom of the projectile body so that the relative position of the to-be-tested product and the data recorder can be kept stable in the air-drop test process, and the adapter is connected with the bottom of the projectile body. The data recorder is simple in structure, convenient to operate, low in cost, easy to disassemble and assemble, high in repeated utilization rate and high in interchangeability, various data in the air-drop process can be directly collected and stored, it is guaranteed that the data recorder keeps stable and reliable in the air-drop data collection process, the failure of the data recorder in the complex atmosphere (pneumatic) environment of an air-drop test is avoided, and the data recorder is safe and reliable. And stable communication transmission between the to-be-tested product and the data recorder in the air-drop test process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of airdrop test, and in particular to an airdrop data acquisition test device. Background Art

[0002] In the process of product development, the method of collecting product performance data through test methods is a necessary and important method. Airdrop data collection is an important test method in the product development process. By collecting performance data during the airdrop process, relevant processing and extraction are carried out to locate problem points and optimize product design. In the development process, airdrop is usually used for data collection, which is an economical, flexible and efficient test method. If dynamic tests such as firing bullets are used to obtain field data, this method needs to be tested at the shooting range, and the cost of firing bullets is high, and it requires scheduling and waiting, and the time cost is high. At the same time, the data recorder may be damaged during the dynamic test, and the collected data cannot be obtained. How to ensure that the cost of airdrop data collection is low, and the system can work stably, reliably and normally during the airdrop process, and it is easy to disassemble and recycle after the test, and it is suitable for different types of products has become very critical. Summary of the invention

[0003] The purpose of the present invention is to provide a device which has simple structure, convenient operation, low cost, easy disassembly and assembly, high reuse rate, high interchangeability, reliable test data collection and can be used for airdrop tests of different products in view of the shortcomings of the above-mentioned background technology.

[0004] In order to achieve the above-mentioned purpose, the present invention provides an airdrop data acquisition test device, including a projectile body, a projectile tail wing arranged at the tail of the projectile body, and a power supply component arranged in the projectile body, characterized in that a product to be tested and a data recorder are arranged at the bottom of the projectile body, and the data recorder is connected to the product to be tested through an adapter so that the relative position of the product to be tested and the data recorder remains stable during the airdrop test, and the adapter is connected to the bottom of the projectile body.

[0005] Furthermore, the tail wing of the missile body is provided with a master control switch, and the master control switch is connected to the bus and is used to switch the on and off states of all electronic components on the bus.

[0006] Furthermore, the projectile tail is also provided with a pull pin and an on-off controller, wherein the pull pin is used to be pulled out from the projectile tail to allow the device to be dropped from a high altitude, and the on-off controller is connected to the bus and cooperates with the pull pin in a contact-type manner. After the pull pin is pulled out from the projectile tail, the on-off controller is connected to the bus.

[0007] Furthermore, the wiring harnesses of the on-off controller and the master switch pass through the inner cavity of the tail wing of the projectile body and are connected to the wiring harnesses in the projectile body.

[0008] Furthermore, the data recorder is installed in the inner cavity of the adapter, the inner cavity of the adapter is covered by an adapter upper cover, and the adapter upper cover is detachably connected to the adapter.

[0009] Furthermore, the bottom of the adapter and the upper cover of the adapter are both provided with a center hole, the center hole of the bottom of the adapter is used for the wiring harness of the product to be tested to pass through, and the center hole of the upper cover of the adapter is used for the wiring harness of the product to be tested and the data recorder to pass through.

[0010] Furthermore, the inner cavity of the adapter is filled with epoxy resin potting glue to further protect the data recorder and fill the gap.

[0011] Furthermore, a bottom truncated cone of the adapter with a reduced outer diameter is formed at the bottom of the adapter, and a top truncated cone of the adapter with a reduced outer diameter is formed at the top of the adapter. The bottom truncated cone of the adapter is detachably connected to the top hole of the product to be tested, and the top truncated cone of the adapter is detachably connected to the bottom of the elastic body.

[0012] Furthermore, a power supply assembly support frame is provided in the projectile body, and the power supply assembly support frame is detachably connected to the projectile body. The power supply assembly is installed on the power supply assembly support frame. A voltage controller is also installed on the power supply assembly support frame, and the voltage controller is used to stabilize the voltage of the data recorder.

[0013] Furthermore, a window is provided on the side wall of the projectile, the window is connected to the inner cavity of the projectile, the window is provided with a projectile cover plate, the projectile cover plate is detachably connected to the projectile, and the projectile cover plate is used to cover the window.

[0014] The above scheme of the present invention has the following beneficial effects:

[0015] The airdrop data acquisition test device provided by the present invention has the advantages of simple structure, convenient operation, low cost, easy assembly and disassembly, high reusability and high interchangeability. Through the setting of the adapter at the bottom of the bomb body, the product to be tested and the data recorder, various data in the airdrop process can be directly collected and stored, ensuring that the data recorder remains stable and reliable during the airdrop data acquisition process, especially ensuring the stable relative position relationship between the product to be tested and the data recorder in the adapter, ensuring the stability of the wiring harness connected thereto, avoiding the failure of the data recorder in the complex atmospheric (pneumatic) environment of the airdrop test, and ensuring the product to be tested and the data recorder. Stable communication transmission between recorders during the airdrop test; in addition, all the wiring harnesses in the present invention can be routed from the inside of the missile body and the tail of the missile body, avoiding the phenomenon that the wiring harnesses are routed from the outside of the missile body during the airdrop test, and the data collection is invalid due to vibration and disconnection caused by wind force. This method can obtain test data more stably; the missile body and the tail of the missile body are preferably made of medium carbon steel, which has the characteristics of high strength and high density, not only can it meet the requirements of multiple reuse, but also can play the role of counterweight, avoiding the possibility of the product to be tested and the data recorder at the bottom of the missile body swaying or even flipping in the air during the airdrop test.

[0016] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is an exploded view of the tail wing structure of the missile body of the present invention;

[0019] Figure 3 It is an exploded view of the bottom structure of the missile body of the present invention;

[0020] Figure 4 It is an exploded view of the middle structure of the missile body of the present invention;

[0021] Figure 5 Schematic diagram of the electrical system of the present invention.

[0022] [Description of Reference Numerals]

[0023] 1-projectile body; 2-projectile body tail; 3-master control switch; 4-pull pin; 5-on / off controller; 6-product to be tested; 7-data recorder; 8-adapter; 9-adapter upper cover; 10-screw; 11-adapter bottom truncated table; 12-adapter top truncated table; 13-voltage controller; 14-power supply assembly; 15-power supply assembly support frame; 16-projectile body cover. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present application, the present application will be described more comprehensively with reference to the relevant drawings below. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many other different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0029] like Figure 1 As shown, an embodiment of the present invention provides an airdrop data acquisition test device, comprising a missile body 1, a missile body tail 2 arranged at the tail (top) of the missile body 1, a master control switch 3 arranged on the missile body tail 2, and the master control switch 3 is connected to the bus and is used to switch the on and off states of all electronic components inside the device. Figure 2As shown, the body tail 2 is also provided with a pull pin 4 and an on-off controller 5. The pull pin 4 is connected to the steering gear on the drone. When the drone flies to a predetermined height, the remote control steering gear is opened, so that the pull pin 4 can be pulled out from the body tail 2, and the device is dropped from a high altitude in a free fall. The on-off controller 5 is also connected to the bus, and is contact-type with the pull pin 4. When the pull pin 4 is pulled out from the body tail 2, the on-off controller 5 is turned on to connect all the electronic components inside the device, ensuring that the bus is connected when the device starts to be airdropped, and each electronic component works, and airdrop data is collected. Among them, the wiring harness of the on-off controller 5 and the master switch 3 passes through the inner cavity of the body tail 2 and is connected to the wiring harness of the electronic components in the body 1.

[0030] It is understandable that when the drone flies to the designated height, the servo on the drone is turned on, the airdrop data acquisition test device is unhooked and starts to fall from the high altitude, the pin 4 is disengaged synchronously to close the on-off controller 5, the circuit is connected, and the entire device is powered on for detection and data collection. This method takes advantage of the opportunity of the tail wing 2 of the missile body to be unhooked, and the method of powering on at a specific point of high-altitude drop is more reliable than the method of powering the missile body 1, the product to be tested 6 and the data recorder 7 before the drone starts to take off, avoiding the situation of insufficient power or starting before reaching the designated distance and detecting invalid data.

[0031] At the same time Figure 3 As shown, in this embodiment, the product to be tested 6 is set at the bottom of the bomb body 1, and it is also used to install a data recorder 7 for collecting airdrop data. Among them, the product to be tested 6 is installed on the adapter 8, and the data recorder 7 is installed in the inner cavity of the adapter 8, and the inner cavity of the adapter 8 is covered by the adapter cover 9, and the adapter cover 9 and the adapter 8 are locked by screws 10, so that the data recorder 7 is fixed in the inner cavity of the adapter 8. It should be noted that the adapter cover 9 is provided with a center hole, and the wiring harness of the product to be tested 6 and the data recorder 7 passes through the center hole of the adapter cover 9 and connects upward, wherein the wiring harness of the product to be tested 6 passes through the center hole at the bottom of the adapter 8 itself. In addition, the data recorder 7 can be further encapsulated and protected in the inner cavity of the adapter 8 by epoxy resin encapsulation glue, filling the gap, etc., to ensure that the data recorder 7 remains stable and reliable during the process of airdrop data collection.

[0032] Among them, a corresponding sensor is arranged in the product to be tested 6, and various data detected by the sensor during the airdrop test are transmitted to the data recorder 7 for storage, so that after the airdrop test is completed, the data recorder 7 can be removed and the data can be read and analyzed, so as to locate design problems and make improvements, thereby optimizing product performance.

[0033] As a preferred embodiment, the bottom of the adapter 8 in this embodiment is formed with an adapter bottom truncated cone 11 with a reduced outer diameter, and the top of the adapter 8 is formed with an adapter top truncated cone 12 with a reduced outer diameter, and the overall structure is a three-section structure. Among them, the adapter bottom truncated cone 11 is plugged into the top hole of the product to be tested 6, and is detachably connected by the adapter bottom truncated cone 11, the screw holes on the product to be tested 6 and the screws 10. The adapter top truncated cone 12 is plugged into the bottom of the elastic body 1, and can be connected by internal and external thread connection, or interference fit, screw 10 connection, etc.

[0034] Therefore, through the cooperation between the adapter bottom truncated table 11 of the adapter 8 and the product to be tested 6, while ensuring convenient assembly, the stable relative position relationship between the product to be tested 6 and the data recorder 7 in the adapter 8 is guaranteed, the stability of the wiring harness connected thereto is guaranteed, and the failure of the data recorder 7 in the complex atmospheric (pneumatic) environment of the airdrop test is avoided, thereby ensuring stable communication transmission between the product to be tested 6 and the data recorder 7 during the airdrop test.

[0035] At the same time Figure 4 As shown, in this embodiment, a voltage controller 13 and a power supply assembly 14 are provided in the projectile body 1, wherein the power supply assembly 14 is fixed by a power supply assembly support frame 15, and the voltage controller 13 is also fixed on the power supply assembly support frame 15, and is used to stably control the voltage of the data recorder 7 to ensure the normal operation of the data recorder 7. The power supply assembly support frame 15 is fixed to the projectile body 1 by screws 10, wherein the bottom of the power supply assembly support frame 15 is provided with a plurality of screw holes distributed in an annular shape, and the corresponding positions of the projectile body 1 are provided with screw holes, and the power supply assembly support frame 15 and the projectile body 1 are detachably connected by screws. Among them, more screw holes can be provided, and when installing the screws 10, half of them can be selected for fixing, and when the threaded surface of the device is damaged during the previous airdrop test, other screw holes can be selected for installation and fixing, which increases the possibility of multiple use of each component.

[0036] It should be noted that a window is also provided on the side wall of the projectile 1, and the window is connected to the inner cavity of the projectile 1, so as to facilitate the operation of the power supply component 14 and the like through the window inside the projectile 1, and to connect the wiring harness, etc. At the same time, the window is provided with a projectile cover plate 16, which is used to cover the window position after the internal assembly of the projectile 1 is completed, so that the device maintains the internal sealing stability during the entire airdrop process. Among them, the projectile cover plate 16 and the projectile 1 are also detachably connected by screws 10, and the screws 10 are installed in the corresponding screw holes on the projectile cover plate 16 and the projectile 1.

[0037] In the airdrop data acquisition test device provided in this embodiment, all the wiring harnesses can be routed from the inside of the missile body 1 and the missile body tail 2, avoiding the phenomenon that the wiring harnesses are routed from the outside of the missile body 1 during the airdrop test, the vibration caused by the wind and the disconnection causing invalid data acquisition, etc. This method can obtain test data more stably. Among them, the missile body 1 and the missile body tail 2 are preferably made of medium carbon steel, which has the characteristics of high strength and high density, which can not only meet the requirements of multiple reuse, but also play the role of counterweight, avoiding the possibility of the product to be tested 6 and the data recorder 7 at the bottom of the missile body 1 swinging or even flipping in the air during the airdrop test.

[0038] In the airdrop data collection test device provided in this embodiment, the product to be tested 6, the missile body 1 and the missile body tail 2 are designed with full consideration of aerodynamics, so that the entire system is subjected to minimal fluid resistance during the airdrop process. The missile body tail 2 is also directly connected to the missile body 1 through internal and external threads, which is convenient for loading and unloading. When the missile body tail 2 is damaged or deformed during the previous airdrop process, it can be directly replaced, and the missile body 1 with a higher processing cost can still be reused.

[0039] It should also be noted that most of the components of the device can be general products that are already mature on the market, with strong replaceability and low cost. For example, the master control switch 3 can be a ship-type switch, the on-off controller 5 can be a contact wardrobe switch in life, the power supply component 14 is a universal dry battery and battery holder, and the power supply component support frame 15 can be obtained by 3D printing, which is convenient to process and has a short cycle. The pull pin 4, the tail wing 2 of the missile body, the cover plate 16 of the missile body, the adapter cover 9, the adapter 8, etc. can be reused many times, and even if they are damaged, they can be directly replaced, and the undamaged parts can continue to be used for the next airdrop test, and the overall reuse rate is high.

[0040] The electrical system of the airdrop data acquisition test device provided in this embodiment includes a master switch 3, an on-off control module, a power module, a product to be tested, a voltage control module and a data recording module. The master switch 3, the on-off control module and the power module are all connected to the bus, the voltage controller and the data recording module are connected in series, and the product to be tested is connected in parallel with the voltage controller and the data recording module. Figure 5 shown.

[0041] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An airdrop data acquisition test device, comprising a missile body (1), a missile body tail wing (2) arranged at the tail of the missile body (1), and a power supply component (14) arranged in the missile body (1), characterized in that: The bottom of the projectile (1) is provided with a product to be tested (6) and a data recorder (7); the data recorder (7) is connected to the product to be tested (6) via an adapter (8) so that the relative position of the product to be tested (6) and the data recorder (7) remains stable during the airdrop test; the adapter (8) is connected to the bottom of the projectile (1).

2. The airdrop data acquisition test device according to claim 1, characterized in that: The missile body tail wing (2) is provided with a master control switch (3), and the master control switch (3) is connected to a bus and is used to switch the on and off states of all electronic components on the bus.

3. The airdrop data acquisition test device according to claim 2, characterized in that: The missile body tail wing (2) is also provided with a pull pin (4) and an on-off controller (5). The pull pin (4) is used to be pulled out from the missile body tail wing (2) so as to drop the device from a high altitude. The on-off controller (5) is connected to a bus and cooperates with the pull pin (4) in a contact-type manner. After the pull pin (4) is pulled out from the missile body tail wing (2), the on-off controller (5) is connected to the bus.

4. The airdrop data acquisition test device according to claim 3, characterized in that: The wiring harnesses of the on / off controller (5) and the master switch (3) pass through the inner cavity of the projectile tail wing (2) and are connected to the wiring harnesses in the projectile (1).

5. The airdrop data acquisition test device according to claim 1, characterized in that: The data recorder (7) is installed in the inner cavity of the adapter (8), and the inner cavity of the adapter (8) is covered by an adapter upper cover (9), and the adapter upper cover (9) is detachably connected to the adapter (8).

6. The airdrop data acquisition test device according to claim 1, characterized in that: The bottom of the adapter (8) and the adapter cover (9) are both provided with a center hole. The center hole at the bottom of the adapter (8) is used for the wiring harness of the product to be tested (6) to pass through, and the center hole of the adapter cover (9) is used for the wiring harness of the product to be tested (6) and the data recorder (7) to pass through.

7. The airdrop data acquisition test device according to claim 1, characterized in that: The inner cavity of the adapter (8) is also filled with epoxy resin potting glue, and the epoxy resin potting glue is used to further protect the data recorder (7) and fill the gap.

8. The airdrop data acquisition test device according to claim 1, characterized in that: The bottom of the adapter (8) is formed with an adapter bottom truncated cone (11) with a reduced outer diameter, and the top of the adapter (8) is formed with an adapter top truncated cone (12) with a reduced outer diameter. The adapter bottom truncated cone (11) is detachably connected to the top hole of the product to be tested (6), and the adapter top truncated cone (12) is detachably connected to the bottom of the elastic body (1).

9. The airdrop data acquisition test device according to claim 1, characterized in that: A power component support frame (15) is arranged in the projectile body (1), and the power component support frame (15) is detachably connected to the projectile body (1). The power component (14) is mounted on the power component support frame (15). A voltage controller (13) is also mounted on the power component support frame (15), and the voltage controller (13) is used to perform voltage stability control on the data recorder (7).

10. The airdrop data acquisition test device according to claim 1, characterized in that: A window is also provided on the side wall of the elastic body (1), the window being connected to the inner cavity of the elastic body (1), the window (1) being provided with an elastic body cover plate (16), the elastic body cover plate (16) being detachably connected to the elastic body (1), and the elastic body cover plate (16) being used to cover the window.

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