Multi-channel synchronous separation device for falling tower type zero-gravity test and control method

Abstract

The invention provides a multi-channel synchronous separation device for a falling tower type zero-gravity test and a control method, and the device comprises an AC commercial power module, a circuit breaker module, a conversion module, a switch module, a first separation interface module, a relay module, a power module, a second separation interface module, and a high-temperature-resistant cut-off module. The first separation interface module comprises a first connector and a second connector, and the second separation interface module comprises a third connector and a fourth connector. The multi-channel synchronous separation device for the falling tower type zero-gravity test is obtained through a specific connection mode, and the test effect is better when the multi-channel synchronous separation device for the falling tower type zero-gravity test is used for conducting the test.

Description

Technical Field

[0001] The present application relates to the technical field of zero-gravity testing, and in particular to a multi-channel synchronous separation device and a control method for a drop-tower type zero-gravity test. Background Art

[0002] With the continuous development of science and technology, people have gradually carried out various experiments under zero gravity. The traditional zero-gravity test environment can be built based on the free fall method. Its working principle is to use the consistency of the acceleration of the release test cabin and the test object in the cabin to ensure the state of "apparent weight" is zero, that is, the test object in the release test cabin can reach a completely weightless state during the free fall stage of the release test cabin. When the release test cabin and the test object in the cabin are in the free fall stage, the zero-gravity separation effect under the weightless state can be achieved, and further tests and verifications of the ejection posture and flight trajectory control algorithm of the test object after separation in the zero-gravity state can be carried out. The zero-gravity test device provided by the relevant technology generally uses the method of simultaneously disconnecting the power of multiple electromagnets to achieve the state of "apparent weight" of zero, but the experimental effect of the zero-gravity test device using electromagnets is poor.

[0003] Therefore, how to provide a zero-gravity test device with good test effect has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] Based on the above problems, the present application provides a multi-channel synchronous separation device and control method for a drop tower zero-gravity test to achieve a better zero-gravity test effect.

[0005] The present application provides a multi-channel synchronous separation device for a drop tower zero gravity test, the device comprising:

[0006] An AC mains module, a circuit breaker module, a conversion module, a switch module, a first separation interface module, a relay module, a power module, a second separation interface module and a high temperature resistant cutoff module, wherein the first separation interface module comprises a first connector and a second connector, and the second separation interface module comprises a third connector and a fourth connector;

[0007] The first end of the AC mains module is connected to the first end of the circuit breaker module, the second end of the AC mains module is connected to the third end of the circuit breaker module, and the third end of the AC mains module is connected to the third end of the conversion module;

[0008] The second end of the circuit breaker module is connected to the first end of the conversion module, and the fourth end of the circuit breaker module is connected to the second end of the conversion module;

[0009] The fourth end of the conversion module is connected to the female end of the second connector of the first separation interface module, the fifth end of the conversion module is connected to the first end of the switch module, and the second end of the switch module is connected to the female end of the first connector;

[0010] The male head of the first connector is connected to the first end of the relay module, the male head of the second connector is connected to the eighth end of the relay module, and coils corresponding to six channels are located between the male head of the first connector and the male head of the second connector;

[0011] The first end of the power module is connected to the female end of the third connector, and the second end of the power module is connected to the female end of the fourth connector;

[0012] The male end of the third connector is connected to the first end of the high temperature resistant cut-off module, the second end of the high temperature resistant cut-off module is connected to the third end of the relay module, and the male end of the fourth connector is connected to the second end of the relay module.

[0013] In a possible implementation, the power supply module includes six DC regulated power supplies, the third connector includes six groups of plugs, the fourth connector includes six groups of plugs, the high temperature resistant cutoff module includes three explosive devices, and the device further includes:

[0014] The six DC regulated power supplies of the power module, the six groups of plugs of the third connector, the six groups of plugs of the fourth connector, the three pyrotechnics and the six channels of the relay module form an initiation power supply circuit.

[0015] In a possible implementation, the detonation power supply circuit includes three groups of pyrotechnic circuits;

[0016] Each set of pyrotechnic circuits includes an pyrotechnic, two sets of plugs of the third connector, two sets of plugs of the fourth connector, and two DC regulated power supplies.

[0017] The present application also provides a control method for a multi-channel synchronous separation device for a drop tower zero gravity test, the method comprising the following steps:

[0018] Open the switch module and release the test chamber;

[0019] When the test chamber is released for a first preset time, the male and female heads of the first connector of the first separation interface are disconnected, the male and female heads of the second connector are disconnected, and the high temperature resistant cutoff module is powered by the detonation power supply circuit;

[0020] When the test chamber is released for a second preset time, the male and female heads of the third connector of the second separation interface are disconnected by the high temperature resistant cut-off module.

[0021] The present application also provides an electronic device, the electronic device comprising a processor and a memory:

[0022] The memory is used to store a computer program and transmit the computer program to the processor;

[0023] The processor is used to execute the steps of the control method of the multi-channel synchronous separation device for drop tower zero gravity test according to the instructions in the computer program.

[0024] The present application also provides a computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program, and when the computer program is executed by an electronic device, the steps of the control method of the multi-channel synchronous separation device for the drop tower zero gravity test are implemented.

[0025] Compared with the prior art, this application has the following beneficial effects:

[0026] The multi-channel synchronous separation device and control method for the drop tower zero gravity test provided by the present application introduce a new separation mechanism to avoid the time delay in the demagnetization process of the traditional electromagnet. This means that the test object can be separated instantly in a completely weightless state, thereby effectively utilizing the effective time of the free fall and minimizing the loss of test accuracy caused by the separation delay. The present application can ensure the precise synchronization of multi-channel separation. This improvement solves the synchronization problem caused by inconsistent demagnetization of the electromagnet in the prior art, making the separation between the test object and the release test chamber more accurate, thereby improving the reliability and safety of the test. The method of the present application reduces the reliance on manual control and avoids the problem of inaccurate detonation timing due to human error. Through the automated control system, the separation mechanism can be accurately started after the test chamber reaches the ideal weightless state, significantly improving the repeatability and reliability of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the structure of a multi-channel synchronous separation device for a drop tower zero gravity test provided in an embodiment of the present application;

[0029] Figure 2 A schematic diagram of the structure of a detonation power supply circuit provided in this application;

[0030] Figure 3 This is a flow chart of a control method for a multi-channel synchronous separation device for a drop tower zero gravity test provided in the present application. DETAILED DESCRIPTION

[0031] As described above, the traditional zero-gravity test environment can be built based on the free-fall method. Its working principle is to use the consistency of the acceleration of the release test cabin and the test object in the cabin to ensure the "apparent weight" is zero, that is, the test object in the release test cabin can reach a completely weightless state during the free-fall stage of the release test cabin. When the release test cabin and the test object in the cabin are in the free-fall stage, the zero-gravity separation effect under the weightless state can be achieved, and further tests and verifications of the ejection posture and flight trajectory control algorithm of the test object after separation in the zero-gravity state can be carried out. The zero-gravity test device provided by the relevant technology generally uses the method of simultaneously disconnecting the power of multiple electromagnets to achieve the "apparent weight" of zero, but the experimental effect of the zero-gravity test device using electromagnets is poor.

[0032] After research, it was found that traditional multi-channel synchronous separation usually uses a method of simultaneously deenergizing multiple electromagnets. Although it can achieve similar effects, it still has the following two shortcomings. First, the separation delay problem. The separation of the test object in the cabin is completed by demagnetization. According to the working principle of the electromagnet, the demagnetization process will have a significant time delay, and usually the effective time of the free fall test process is extremely short. Therefore, the time waste caused by the electromagnet demagnetization process cannot be ignored and is inevitable. Second, the problem of multi-channel separation cannot be accurately synchronized. According to actual needs, the test object and the release test cabin usually use a multi-channel (multiple electromagnets) physical connection. However, it is difficult to ensure that the electromagnet demagnetization process is completely consistent, and thus it is impossible to ensure accurate synchronous separation, which will seriously affect the accuracy of the zero-gravity test.

[0033] Traditional multi-channel synchronous separation may usually use a method of simultaneously detonating multiple high-temperature cutoffs. Although the synchronization accuracy is very high, there are still the following two problems: First, the traditional detonation controller is manually controlled to detonate, and the time required for the release test cabin to fall is extremely short. It is difficult to control the detonation timing by manual methods, which may easily cause premature detonation before entering the zero-gravity state, resulting in incorrect test environment state and test failure, or release the test cabin immediately after detonation, resulting in insufficient test time and test failure. Based on the first point, it is necessary to design an additional timing control circuit in the test cabin. After judging that the test cabin has entered the free fall state, multiple high-temperature cutoffs are controlled to detonate simultaneously, which will inevitably increase the design cost. At the same time, when the drop tower zero-gravity test is carried out multiple times, the timing control circuit will repeatedly buffer the landing impact together with the test cabin, increasing the risk of electronic components in the timing control circuit failing and operating abnormally, greatly reducing the overall reliability of the test system.

[0034] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] Figure 1 A schematic diagram of the structure of a multi-channel synchronous separation device for a drop tower zero gravity test provided in an embodiment of the present application, the device comprising:

[0036] The AC mains module 100, the circuit breaker module 200, the conversion module 300, the switch module 400, the first separation interface module 500, the relay module 600, the power module 700, the second separation interface module 800 and the high temperature resistant cut-off module 900, the first separation interface module includes a connector A (first connector) and a connector B (second connector), and the second separation interface module includes a connector C (third connector) and a connector D (fourth connector).

[0037] The AC mains module includes three ports, namely L (first end), N (second end) and G (third end). The circuit breaker module includes four ports, namely port 1 (first end), 2 (second end), 3 (third end) and 4 (fourth end).

[0038] The conversion module includes five ports, namely Vin- (first end), VIN+ (second end), GND (third end), out- (fourth end) and out+ (fifth end).

[0039] The first end of the AC mains module is connected to the first end of the circuit breaker module, the second end of the AC mains module is connected to the third end of the circuit breaker module, and the third end of the AC mains module is connected to the third end of the conversion module.

[0040] The second end of the circuit breaker module is connected to the first end of the conversion module, and the fourth end of the circuit breaker module is connected to the second end of the conversion module.

[0041] The fourth end of the conversion module is connected to the female end of the second connector of the first separation interface module, the fifth end of the conversion module is connected to the first end of the switch module, and the second end of the switch module is connected to the female end of the first connector.

[0042] The relay module includes a relay coil and a relay output contact. The relay coil includes a connection terminal 1 (first terminal), a connection terminal 8 (eighth terminal) and six channels corresponding to the coils 1 to 6. The relay output contact includes a contact 2 (second terminal) and a contact 3 (third terminal).

[0043] The male head of the first connector is connected to the first end of the relay module, the male head of the second connector is connected to the eighth end of the relay module, and coils corresponding to six channels are between the male head of the first connector and the male head of the second connector.

[0044] The power module includes Output- (first end) and Output+ (second end).

[0045] The first end of the power module is connected to the female connector of the third connector, and the second end of the power module is connected to the female connector of the fourth connector.

[0046] The high temperature resistant cut-off module includes port 4 (first end) and port 2 (second end).

[0047] The male end of the third connector is connected to the first end of the high temperature resistant cut-off module, the second end of the high temperature resistant cut-off module is connected to the third end of the relay module, and the male end of the fourth connector is connected to the second end of the relay module.

[0048] The AC mains module 100, circuit breaker module 200, conversion module 300, switch module 400, connector A female and connector B female of the first separation interface module 500 of the multi-channel synchronous separation device for drop tower type zero gravity test can be present on the drop tower, and the connector A male, connector B male, relay module 600, power module 700, second separation interface module 800 and high temperature resistant cut-off module 900 of the first separation interface module 500 can be arranged on the test cabin.

[0049] As the test chamber is released, the test chamber begins to perform free fall motion, and after a preset time, the female connector A and the female connector B are separated from the male connector A and the male connector B.

[0050] In a possible implementation, the power supply module includes six DC regulated power supplies, the third connector includes six groups of plugs, the fourth connector includes six groups of plugs, and the high temperature resistant cutoff module includes three pyrotechnics.

[0051] Six DC regulated power supplies of the power module, six groups of plugs of the third connector, six groups of plugs of the fourth connector, three pyrotechnics and six channels of the relay module form an initiation power supply circuit.

[0052] Figure 2 A schematic diagram of the structure of a detonation power supply circuit provided in this application, Figure 2 It includes DC regulated power supply 1-6, pyrotechnics 1-3, and contacts 1-6 of relay channels.

[0053] exist Figure 2 In the figure, an pyrotechnic device, two relay channel contacts, two sets of plugs and two DC regulated power supplies form a part of the circuit. Next, take the part of pyrotechnic device 1 as an example to explain. The two 2 connectors of pyrotechnic device 1 are respectively connected to the contacts of relay channel 1 and the contacts of relay channel 2, the contacts of relay 1 are connected to the 1 separation plug +, and the contacts of relay 2 are connected to the 2 separation plug +. The two 4 connectors of pyrotechnic device 1 are respectively connected to the 1 separation plug - and the 2 separation plug -. The other part of the circuit, 1 separation plug -, 1 separation plug + are connected to DC regulated power supply 1, and 2 separation plug -, 2 separation plug + are connected to DC regulated power supply 2.

[0054] As the test chamber is released, it begins to free fall. After a preset time, the female connector A and the female connector B separate from the male connector A and the male connector B. After the male connector A and the male connector B separate, the relay module is powered off, and the high-temperature cutoff module is powered by the detonation power supply circuit. The high-temperature cutoff module is powered on, and after a period of time, the female connector C and the female connector D separate from the male connector C and the male connector D. After that, the test chamber continues to free fall until the end of the experiment.

[0055] The multi-channel synchronous separation device and control method for the drop tower zero gravity test provided by the present application introduce a new separation mechanism to avoid the time delay in the demagnetization process of the traditional electromagnet. This means that the test object can be separated instantly in a completely weightless state, thereby effectively utilizing the effective time of the free fall and minimizing the loss of test accuracy caused by the separation delay. The present application can ensure the precise synchronization of multi-channel separation. This improvement solves the synchronization problem caused by inconsistent demagnetization of the electromagnet in the prior art, making the separation between the test object and the release test chamber more accurate, thereby improving the reliability and safety of the test. The method of the present application reduces the reliance on manual control and avoids the problem of inaccurate detonation timing due to human error. Through the automated control system, the separation mechanism can be accurately started after the test chamber reaches the ideal weightless state, significantly improving the repeatability and reliability of the test.

[0056] Figure 3 This is a flow chart of a control method for a multi-channel synchronous separation device for a drop tower zero gravity test provided in the present application, the method comprising the following steps:

[0057] S301: Open the switch module and release the test chamber.

[0058] The handling equipment opens the switch module and releases the test chamber.

[0059] Before using the synchronous separation device, the synchronous separation device can be pre-set. For example, the processing device can set the DC regulated power supply to a constant voltage mode, the output voltage to 20.5V, and start the output of the DC regulated power supply.

[0060] When the processing device turns on the switch module, the coil of the relay module is energized and the contacts of the relay module are disconnected.

[0061] S302: After the test chamber is released for a first preset time, the male and female heads of the first connector of the first separation interface are disconnected, the male and female heads of the second connector are disconnected, and the high temperature resistant cutoff module is powered by the detonation power supply circuit.

[0062] After the test cabin is released, it performs free fall. In order to be closer to the requirements of the test, in a possible implementation, in the first separation interface module, the cable length between the male and female heads of the first connector is 31 cm, and the cable length between the male and female heads of the second connector is 31 cm. If the test cabin performs free fall, it takes 252 ms for the male and female heads in the first separation interface to separate and disconnect. At this time, the relay module coil is de-energized, the contact path is connected, the detonation power supply circuit is connected, and the detonation power supply circuit supplies power to the high temperature resistant cutoff module. The first preset time is determined by the cable length between the male and female heads of the first connector.

[0063] S303: After the test chamber is released for a second preset time, the male and female connectors of the third connector of the second separation interface are disconnected by the high temperature resistant cut-off module.

[0064] When the test cabin is released after the first preset time, it will continue to free fall. When the test cabin is released after the second preset time, the male and female heads in the second separation interface are separated. In order to be more in line with the actual test scenario, in one possible implementation, the cable length between the male and female heads in the second separation interface is 67cm, which is 36cm different from the cable length in the first separation interface module. It takes 369ms for the test cabin to separate and disconnect. That is, the time interval between the two separations is 117ms, which meets the power-on time requirements of the high-temperature resistant cutoff module, the detonation is sufficient, and the test cabin ends when it lands.

[0065] The multi-channel synchronous separation device and control method for the drop tower zero gravity test provided by the present application introduce a new separation mechanism to avoid the time delay in the demagnetization process of the traditional electromagnet. This means that the test object can be separated instantly in a completely weightless state, thereby effectively utilizing the effective time of the free fall and minimizing the loss of test accuracy caused by the separation delay. The present application can ensure the precise synchronization of multi-channel separation. This improvement solves the synchronization problem caused by inconsistent demagnetization of the electromagnet in the prior art, making the separation between the test object and the release test chamber more accurate, thereby improving the reliability and safety of the test. The method of the present application reduces the reliance on manual control and avoids the problem of inaccurate detonation timing due to human error. Through the automated control system, the separation mechanism can be accurately started after the test chamber reaches the ideal weightless state, significantly improving the repeatability and reliability of the test.

[0066] An embodiment of the present application also provides a control device for a multi-channel synchronous separation device for a drop tower type zero gravity test, wherein the device includes a memory and a processor, the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes so that the device performs the steps of the control method for a multi-channel synchronous separation device for a drop tower type zero gravity test described in any embodiment of the present application.

[0067] In practical applications, the computer-readable storage medium may be any combination of one or more computer-readable media, which may be a computer-readable signal medium or a computer-readable storage medium.

[0068] The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or device.

[0069] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0070] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0071] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0072] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely schematic, in which the unit described as a separate component may or may not be physically separated, and the component prompted as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.

[0073] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A multi-channel synchronous separation device for drop tower zero gravity test, characterized in that: include: An AC mains module, a circuit breaker module, a conversion module, a switch module, a first separation interface module, a relay module, a power module, a second separation interface module and a high temperature resistant cutoff module, wherein the first separation interface module comprises a first connector and a second connector, and the second separation interface module comprises a third connector and a fourth connector; The first end of the AC mains module is connected to the first end of the circuit breaker module, the second end of the AC mains module is connected to the third end of the circuit breaker module, and the third end of the AC mains module is connected to the third end of the conversion module; The second end of the circuit breaker module is connected to the first end of the conversion module, and the fourth end of the circuit breaker module is connected to the second end of the conversion module; The fourth end of the conversion module is connected to the female end of the second connector of the first separation interface module, the fifth end of the conversion module is connected to the first end of the switch module, and the second end of the switch module is connected to the female end of the first connector; The male head of the first connector is connected to the first end of the relay module, the male head of the second connector is connected to the eighth end of the relay module, and coils corresponding to six channels are located between the male head of the first connector and the male head of the second connector; The first end of the power module is connected to the female end of the third connector, and the second end of the power module is connected to the female end of the fourth connector; The male end of the third connector is connected to the first end of the high temperature resistant cut-off module, the second end of the high temperature resistant cut-off module is connected to the third end of the relay module, and the male end of the fourth connector is connected to the second end of the relay module.

2. The device according to claim 1, characterized in that The power supply module includes six DC regulated power supplies, the third connector includes six groups of plugs, the fourth connector includes six groups of plugs, the high temperature resistant cutoff module includes three explosive devices, and the device further includes: The six DC regulated power supplies of the power module, the six groups of plugs of the third connector, the six groups of plugs of the fourth connector, the three pyrotechnics and the six channels of the relay module form an initiation power supply circuit.

3. The device according to claim 2, characterized in that The detonation power supply circuit includes three groups of pyrotechnic circuits; Each set of pyrotechnic circuits includes an pyrotechnic, two sets of plugs of the third connector, two sets of plugs of the fourth connector, and two DC regulated power supplies.

4. A control method for a multi-channel synchronous separation device for a drop tower zero gravity test, characterized in that: include: Open the switch module and release the test chamber; When the test chamber is released for a first preset time, the male and female heads of the first connector of the first separation interface are disconnected, the male and female heads of the second connector are disconnected, and the high temperature resistant cutoff module is powered by the detonation power supply circuit; When the test chamber is released for a second preset time, the male and female heads of the third connector of the second separation interface are disconnected by the high temperature resistant cut-off module.

5. An electronic device, characterized in that: comprising a memory and a processor, wherein: The memory is used to store the computer program; The processor is used to execute the computer program to implement the control method as claimed in claim 4.

6. A computer-readable storage medium, characterized in that: Used to store a computer program, wherein the computer program implements the control method according to claim 4 when executed by a processor.

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