A signal transmission method for functional acceleration test using a centrifuge

Abstract

The application provides a signal transmission method for carrying out functional acceleration test by using a centrifuge, specifically, discrete quantity signals are transformed into discrete quantity digital information based on computer technology for transmission, and then the discrete quantity signals are reproduced again; data transmitted by GJB289A bus transmission and optical cable transmission is transmitted by wireless or wired network transmission mode, and then converted into the original mode for data transmission. The application solves the detection problem of the test equipment which needs to use more than the number of inherent slip rings, the test equipment using GJB289A bus transmission signal and the test equipment using optical cable transmission signal when the centrifuge is used to carry out acceleration test. The application can effectively solve the above signal transfer problem by installing a specially-made network transmission equipment with signal conversion function near the rotating shaft and external wiring table of the centrifuge rotating arm, so as to ensure the normal transmission of signals in the test process, and make the above equipment carry out normal detection work.

Description

Technical Field

[0001] This application relates to the field of acceleration testing and detection in environmental testing of electronic products, and in particular to a signal transmission method for conducting functional acceleration tests using a centrifuge. Background Technology

[0002] Due to the high reliability requirements of electronic equipment used in aviation, aerospace, and ships, the transmission of energy (electricity), signals, and information data relies on physical cables within the main body. Centrifuges equipped with multi-channel conductive slip rings enable the transmission of energy (electricity), signals, and information data between devices during functional acceleration tests on the ground.

[0003] However, with technological advancements, the use of discrete signals in aviation, aerospace, and shipboard electronic equipment is increasing. Information data transmission is increasingly relying on GJB289A and fiber optic cables. However, due to the high-speed rotation of the working components in centrifuges, only multiple conductive slip rings are installed. This results in two problems: firstly, the information data that the tested equipment using GJB289A and fiber optic cables needs to transmit cannot be transmitted; secondly, due to structural limitations, the number of conductive slip rings is generally limited. For tested equipment with discrete signals exceeding the inherent slip ring count, some signals cannot be transmitted, rendering the equipment inoperable. Both of these factors prevent functional and performance testing of these tested products during the experiment, making it impossible to guarantee the scientific, accurate, and reliable nature of the test results. Summary of the Invention

[0004] In view of this, this application provides a signal transmission method for conducting functional acceleration tests using a centrifuge, which solves the problems in the prior art and ensures the scientific, authentic and reliable nature of the test results.

[0005] This application provides a signal transmission method for conducting functional acceleration tests using a centrifuge, employing the following technical solution:

[0006] A signal transmission method for conducting functional acceleration tests using a centrifuge includes:

[0007] The discrete signal is transformed into discrete digital information using computer technology, transmitted, and then the discrete signal is regenerated.

[0008] Data transmitted via GJB289A bus and fiber optic cable will be transmitted wirelessly or via wired network before being converted back to the original transmission method.

[0009] Optionally, a first transmission device is installed on the centrifuge rotating arm, and a second transmission device is installed at the wiring dock in the centrifuge control room. The data of the test product are transmitted to the first transmission device via a wired connection. The first transmission device is powered by a conductive slip ring, and the test data of the testing device are transmitted to the second transmission device via a wired connection.

[0010] The first and second transmission devices communicate via wired means through a conductive slip ring, or via wireless means.

[0011] Optionally, the first transmission device converts the collected discrete signal of the test product into discrete data information, and sends the discrete data information of the test product to the second transmission device, which then converts the discrete data information into discrete signals and sends them to the detection device.

[0012] The first device transmits the data sent by the test product via GJB289A bus or optical cable to the second transmission device through the network. The second transmission device restores the data transmitted over the network into GJB289A bus data and optical cable data respectively, and transmits them to the testing device in the prescribed format.

[0013] The second transmission device sends the data from the testing device to the first transmission device via the network through the GJB289A bus or optical cable. The first transmission device then restores the network data to GJB289A bus data and optical cable data respectively, and transmits them to the product under test in the prescribed format.

[0014] Optionally, the first transmission device includes a motherboard, a GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, and at least one discrete signal acquisition card. The motherboard has multiple slots, in which the GJB289A bus input / output board, the photoelectric conversion input / output board, the network card, and the discrete signal acquisition card are installed. The product under test is connected to the discrete signal acquisition card via a discrete signal cable, connected to the GJB289A bus input / output board via a GJB289A bus, and connected to the photoelectric conversion input / output board via an optical fiber. The motherboard controls the transmission and conversion of discrete signals, GJB289A bus data, and optical fiber information data.

[0015] Optionally, the second transmission device includes a motherboard, a GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, a power module, and at least one discrete quantity conversion board. The motherboard has multiple slots, and the power module, GJB289A bus input / output board, photoelectric conversion input / output board, network card, and discrete quantity conversion board are installed in the slots. The detection device is connected to the discrete quantity conversion board via a discrete signal cable, the detection device is connected to the GJB289A bus input / output board via a GJB289A bus, and the detection device is connected to the photoelectric conversion input / output board via an optical fiber. The motherboard controls the power module to generate discrete signals based on the received discrete information data and send them to the detection device. The motherboard controls the transmission and conversion of GJB289A bus data and optical fiber information data.

[0016] Optionally, the data transmitted via the GJB289A bus cable can be changed to be transmitted via a general cable and the TCP / IP protocol. After the data is received, it can be reverted to being transmitted via the GJB289A bus cable.

[0017] Optionally, the data transmitted via optical fiber is converted into electrical signals and simultaneously transmitted via general-purpose cables and the TCP / IP protocol. After being received, this data is converted back into optical signals and transmitted via optical fiber.

[0018] In summary, this application includes the following beneficial technical effects:

[0019] This application solves the detection problems encountered when using centrifuges for acceleration tests on test equipment that requires more than the inherent number of slip rings, uses the GJB289A bus for signal transmission, or uses fiber optic cables for signal transmission. This application changes the traditional concept of direct signal transmission by installing a specially designed network transmission device with signal conversion function near the centrifuge's rotating arm and external terminal block. This effectively solves the aforementioned signal relay problem, ensuring normal signal transmission during the centrifuge's operation. This makes it possible for the aforementioned equipment to perform normal testing, and has significant implications and application prospects for the detection of test equipment and the manufacturing of testing equipment (centrifuges) in current steady-state functional acceleration tests.

[0020] To minimize or eliminate the use of conductive slip rings in centrifuges for signal and data transmission, this method transforms discrete signals into discrete digital information using computer technology for transmission, then regenerates the discrete signals. It also transmits data via wireless or wired networks using GJB289A bus and fiber optic cables, then reverts to the original transmission method. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 Structural block diagram of the first transmission device of this application;

[0023] Figure 2 This application contains a structural block diagram of the second transmission device;

[0024] Figure 3 This application describes the crosslinking pattern when used in conjunction with a centrifuge to test the equipment under test. Detailed Implementation

[0025] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0026] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0028] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0029] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0030] This application provides a signal transmission method for conducting functional acceleration tests using a centrifuge.

[0031] like Figure 1-3 As shown, a signal transmission method for conducting functional acceleration tests using a centrifuge includes:

[0032] The discrete signal is transformed into discrete digital information using computer technology, transmitted, and then the discrete signal is regenerated.

[0033] Data transmitted via GJB289A bus and fiber optic cable will be transmitted wirelessly or via wired network before being converted back to the original transmission method.

[0034] A first transmission device is installed on the centrifuge's rotating arm, and a second transmission device is installed at the junction box in the centrifuge control room. Data from the test product is transmitted to the first transmission device via a wired connection. The first transmission device is powered by a conductive slip ring, and the test product's standard cable is also connected to the conductive slip ring. The conductive slip ring is installed on the centrifuge's rotating shaft. After the conductive slip ring is connected to a junction box, this junction box connects to the product's power supply and the first transmission device's power supply. Test data from the testing equipment is transmitted to the second transmission device via a wired connection. The testing equipment is connected to the power supply and other lines via standard cables. The first and second transmission devices can communicate wiredly via the conductive slip ring or wirelessly.

[0035] The first transmission device converts the collected discrete signal of the test product into discrete data information and sends the discrete data information of the test product to the second transmission device. The second transmission device converts the discrete data information into discrete signals and sends them to the detection device.

[0036] The first transmission device, primarily composed of a computer, includes a motherboard, a GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, and at least one discrete signal acquisition card. The discrete signal acquisition card is configured according to the required number of signals. The motherboard has multiple slots, in which the GJB289A bus input / output board, photoelectric conversion input / output board, network card, and discrete signal acquisition card are installed. The product under test (PUT) is connected to the discrete signal acquisition card via a discrete signal cable, connected to the GJB289A bus input / output board via a GJB289A bus, and connected to the photoelectric conversion input / output board via an optical fiber. The motherboard controls the transmission and conversion of discrete signals, GJB289A bus data, and optical fiber information data.

[0037] The first device transmits the data sent by the product under test via the GJB289A bus or optical cable to the second transmission device through the network. The second transmission device then restores the data transmitted over the network into GJB289A bus data and optical cable data respectively, and transmits them to the testing device in the prescribed format.

[0038] The second transmission device includes a motherboard, a GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, a power module, and at least one discrete quantity conversion board. The discrete quantity conversion board is configured according to the required number of signals. The motherboard has multiple slots, in which the power module, GJB289A bus input / output board, photoelectric conversion input / output board, network card, and discrete quantity conversion board are installed. The detection device is connected to the discrete quantity conversion board via discrete signal cables, connected to the GJB289A bus input / output board via a GJB289A bus, and connected to the photoelectric conversion input / output board via an optical fiber. The motherboard controls the power module to generate discrete signals based on the received discrete quantity information data and sends them to the detection device. The motherboard controls the transmission and conversion of GJB289A bus data and optical fiber information data.

[0039] The second transmission device sends the data from the testing device to the first transmission device via the network through the GJB289A bus or optical cable. The first transmission device then restores the network data to GJB289A bus data and optical cable data respectively, and transmits them to the product under test in the prescribed format.

[0040] The data transmitted via the GJB289A bus cable was changed to be transmitted via a general cable and the TCP / IP protocol. After the data was received, it was restored to be transmitted via the GJB289A bus cable.

[0041] Data transmitted via optical fiber is converted into electrical signals and then transmitted via general-purpose cables and the TCP / IP protocol. After being received, this data is converted back into optical signals and transmitted via optical fiber.

[0042] The specific working process for this application is as follows:

[0043] After the testing equipment, product, and network transmission equipment are powered on, the discrete signal emitted by the product under test is converted into information data by the first transmission device and then transmitted to the second transmission device. The second transmission device will control the power module to generate discrete signals based on the received discrete information data and send them to the testing equipment to realize the detection of discrete quantities.

[0044] When the testing equipment needs to send information to the product under test via the GJB289A bus and optical fiber, it first sends the information to the second transmission device via the GJB289A bus and optical fiber. The second transmission device identifies and converts the information, and then transmits it to the first device according to the general network transmission protocol. After receiving the information, the first transmission device restores it to GJB289A bus data and optical fiber data respectively, and transmits it to the product under test in the prescribed format.

[0045] When the product under test needs to send information via the GJB289A bus and optical fiber, the information is first sent to the first transmission device via the GJB289A bus and optical fiber. The first transmission device identifies and converts the information, and then transmits it to the second device according to the general network transmission protocol. After receiving the information, the second transmission device restores it to GJB289A bus data and optical fiber data respectively, and transmits it to the testing device in the prescribed format.

[0046] This completes the information exchange between the test product and the testing equipment, solving the problem that the test equipment is difficult to detect during the test due to the inability to transmit signals and data, and ensuring that the test results are scientific, true and reliable.

[0047] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A signal transmission method for conducting functional acceleration tests using a centrifuge, characterized in that, A first transmission device is installed on the centrifuge rotating arm, and a second transmission device is installed at the junction box in the centrifuge control room. Both the first and second transmission devices include a motherboard and multiple data interfaces. The data interface of the first transmission device includes a GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, and at least one discrete signal acquisition card. The data interface of the second transmission device includes a GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, and at least one discrete signal conversion board. Various types of data of the tested product are transmitted to the first transmission device through the corresponding type of data interface on the first transmission device. The first transmission device is powered by a conductive slip ring. Various types of data of the testing device are transmitted to the second transmission device through the corresponding type of data interface on the second transmission device. The first and second transmission devices communicate using the TCP / IP protocol via a conductive slip ring and a general-purpose cable. The first transmission device converts the different types of data emitted by the test product into corresponding information and then transmits it to the second transmission device via a conductive slip ring and a general cable using the TCP / IP protocol. The second transmission device then restores the received information into the corresponding type of data. The second transmission device converts the different types of data sent by the detection device into corresponding information and then transmits it to the first transmission device via a conductive slip ring and a general cable using the TCP / IP protocol. The first transmission device then restores the received information into the corresponding type of data.

2. The signal transmission method for conducting functional acceleration tests using a centrifuge according to claim 1, characterized in that, The first transmission device converts the collected discrete signal of the test product into discrete data information and sends the discrete data information of the test product to the second transmission device. The second transmission device converts the discrete data information into discrete signals and sends them to the detection device. The first transmission device transmits the data sent by the product under test via GJB289A bus or optical cable to the second transmission device through the network. The second transmission device restores the data transmitted over the network into GJB289A bus data and optical cable data respectively, and transmits them to the testing device in the prescribed format. The second transmission device sends the data from the testing device via the GJB289A bus or optical cable to the first transmission device through the network. The first transmission device then restores the network data to GJB289A bus data and optical cable data respectively, and transmits them to the product under test in the prescribed format.

3. The signal transmission method for conducting functional acceleration tests using a centrifuge according to claim 2, characterized in that, The motherboard of the first transmission device has multiple slots. A GJB289A bus input / output board, a photoelectric conversion input / output board, a network card, and a discrete signal acquisition card are installed in the slots. The product under test is connected to the discrete signal acquisition card via a discrete signal cable. The product under test is connected to the GJB289A bus input / output board via a GJB289A bus. The product under test is connected to the photoelectric conversion input / output board via an optical fiber. The motherboard controls the transmission and conversion of discrete signals, GJB289A bus data, and optical fiber information data.

4. The signal transmission method for conducting functional acceleration tests using a centrifuge according to claim 2, characterized in that, The second transmission device also includes a power module. The motherboard of the second transmission device has multiple slots. The power module, GJB289A bus input / output board, photoelectric conversion input / output board, network card, and discrete quantity conversion board are installed in the slots. The detection device is connected to the discrete quantity conversion board through discrete signal cables, the detection device is connected to the GJB289A bus input / output board through the GJB289A bus, and the detection device is connected to the photoelectric conversion input / output board through optical fiber. The motherboard controls the power module to generate discrete signals based on the received discrete information data and send them to the detection device. The motherboard controls the transmission and conversion of GJB289A bus data and optical fiber information data.

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