Remote control system for small missile tester and testing method

Abstract

The invention provides a small missile tester remote control system and a test method, and solves the occupational safety problem in the existing production test process. According to the remote control system for the small missile tester, the electromagnetic actuator is fixed above the tester keys by designing a special tool to realize remote control of the tester keys, the USB-to-VGA converter is used to realize remote monitoring of a tester screen, the USB deconcentrator is used to realize remote operation of a mouse and a keyboard, and the remote control of the tester keys is realized. Therefore, remote control of the missile tester is realized. According to the scheme, noise pollution in the test can be effectively reduced at low cost, guarantee is provided for the safety of testers, and effectiveness and reliability are both achieved.

Description

Technical Field

[0001] This invention belongs to the field of control and vibration testing technology, specifically relating to a remote control system and testing method for a small missile tester. This system can be applied to vibration environment testing of the front body of a small missile. Background Technology

[0002] In a vibration test of the front body of a small missile, due to cable length limitations, the testing equipment was placed on a table adjacent to the vibration table. The overall structure of the testing equipment resembled a laptop computer. Figure 1 As shown, the system includes a hinged control panel and a screen. A rectangular button slot is located near the screen on the control panel, containing five circular buttons (D1, D2, D4, Reserved 1, Reserved 2) and one square button (D3). A keypad is located away from the screen on the control panel. During vibration testing, only buttons D1 (missile test process start button – warm-up) and D4 (missile test process cancel button – cancel) are needed for workflow control. Additionally, the tester has several USB ports for signal output. The vibration table generates high noise during operation, and prolonged exposure to this environment can cause irreversible damage to the hearing and health of testing personnel. Furthermore, the vibration table's operation may cause tooling fixtures, test products, and tools to shift, detach, or fly out due to severe vibration, posing a serious threat to the safety of surrounding testing personnel.

[0003] Currently, the above problems can be solved by remaking cables of sufficient length. However, this solution is costly, and the test cables are thick and cumbersome, with cables tens of meters long, making them difficult to carry. Laying the cables before and storing them after testing requires significant time and manpower, which does not meet current production testing requirements. Furthermore, existing vibration test remote control mainly focuses on the remote transmission and control of video signals and data acquisition signals, rarely involving the remote control of buttons and video signals simultaneously. Moreover, the aforementioned test instrument is a dedicated device, and the rectangular button slot is very close to the screen with limited space, further increasing the difficulty of remote button control.

[0004] Therefore, it is necessary to explore a remote control system and testing method for a small missile tester. Summary of the Invention

[0005] The purpose of this invention is to solve the occupational safety problems existing in the current production and testing process, and to provide a remote control system and testing method for a small missile tester. This solution can not only achieve remote control, but also has low cost and high flexibility, and can reduce the safety risks to test personnel and noise pollution.

[0006] To achieve the above objectives, the technical solution provided by this invention is:

[0007] A remote control system for a small missile tester is provided, which remotely controls the buttons, screen, mouse, keyboard, etc. of the tester. Its special feature is that it includes a remote control module for the tester buttons, a remote display module for the tester screen, and a remote control module for the tester mouse and keyboard.

[0008] The remote control module for the tester buttons includes two electromagnetic actuators, an electromagnetic actuator fixing fixture (the structure and size of which are designed according to the position of the tester buttons, aiming to stably install the electromagnetic actuators above the tester buttons, with an adjustable distance between them and the tester buttons, without affecting the use of the tester screen), an electromagnetic actuator power control box, a DC regulated power supply, and a shielded power cord.

[0009] The two electromagnetic actuators are respectively mounted directly above the tester button D1 (missile test process start button) and button D4 (missile test process end button) via electromagnetic actuator fixing fixtures, and the distance between them and the buttons is adjustable.

[0010] The electromagnetic actuator power control box (also located at a remote location for easy operation) is equipped with multiple self-reset switches, with each electromagnetic actuator corresponding to one self-reset switch. A set of normally open contacts of the self-reset switch is first connected to the positive and negative terminals of the DC regulated power supply via short wires, and then connected to both ends of the power control line of the corresponding electromagnetic actuator via the shielded power lines. This is used to control the on and off of the electromagnetic actuator's power supply. The DC regulated power supply provides the power required for the actuator to operate.

[0011] When the self-reset switch is pressed, the power supply of the corresponding electromagnetic actuator is turned on, the electromagnetic actuator works and presses the corresponding button to enter the test process; when the self-reset switch is released, the power supply of the corresponding electromagnetic actuator is turned off and returns to the initial position, and the button on the tester is reset.

[0012] The remote display module of the tester screen includes a converter, a long cable, and a display; one end of the converter is connected to the USB interface of the tester, and the other end is connected to the display via the long cable, and the display shows the screen content of the tester in real time.

[0013] The remote control module for the tester's mouse and keyboard includes a USB splitter (or a USB extender), a mouse, and a keyboard. The tester connects to the mouse and keyboard located at a remote location via the USB splitter, which can be used to remotely operate the tester by pressing the buttons and using the mouse, realizing remote control functions for manual input of the tester, such as product number input and test report output.

[0014] Furthermore, the electromagnetic actuator fixing fixture is stably mounted in the rectangular button slot of the tester. Its main body is hollowed out in the middle to accommodate the electromagnetic actuator. The bottom of its main body has a through hole for installing the electromagnetic actuator at the position corresponding to the circular button of the tester. The overall size of its main body does not affect the use of the tester screen.

[0015] Furthermore, a square groove is provided on the bottom of the main body of the electromagnetic actuator fixing fixture corresponding to the square button of the tester, to further prevent touching the square button.

[0016] Furthermore, the electromagnetic actuator is selected using the following method:

[0017] The force required for buttons D1 and D4 is measured using a thrust gauge to determine the magnitude of the thrust.

[0018] Use vernier calipers to measure the initial and pressed positions of buttons D1 and D4 to determine the travel length;

[0019] Select an electromagnetic actuator that matches the thrust and stroke length.

[0020] Furthermore, the electromagnetic actuator is model kk-0837, the thrust is adjustable in the range of 1-20N, the maximum stroke is 10mm, and its position relative to the button on the testing instrument is adjustable in the range of 1-5mm.

[0021] Furthermore, the electromagnetic actuator fixture is made of stainless steel and weighs 3.5±0.3kg.

[0022] Furthermore, the converter is a USB-VGA converter.

[0023] Meanwhile, this invention provides a method for controlling the testing of the aforementioned small missile tester using a remote control system, characterized by the following steps:

[0024] 1) Install the remote control system in place, including: installing the electromagnetic actuator in the corresponding hole position of the electromagnetic actuator fixing fixture, clamping the electromagnetic actuator fixing fixture in the rectangular button slot of the tester, and connecting the electromagnetic actuator power control line to the DC regulated power supply through the electromagnetic actuator power control box, etc.; In the initial state before the test starts, the two electromagnetic actuators are located directly above the tester buttons D1 (i.e., process start) and D4 (i.e. process end) respectively, and are not in contact with the buttons;

[0025] 2) Use the mouse and keyboard to enter the product number on the testing software of the testing instrument, and click Start Test;

[0026] 3) Control the corresponding electromagnetic actuator to press the button D1 of the tester, i.e., the missile test process start button, through the electromagnetic actuator power control box to start the test process;

[0027] 4) Control the corresponding electromagnetic actuator to press button D4 (missile test procedure cancellation button) on the tester via the electromagnetic actuator power control box to complete the test;

[0028] 5) After the test is completed, use the mouse and keyboard to operate the tester software and generate a test report.

[0029] The advantages of this invention are:

[0030] 1. This invention allows testers to work remotely, effectively avoiding noise pollution and potential mechanical injuries caused by the vibration table, thus providing a better working environment for testers.

[0031] 2. Compared with the method of remaking long test cables, the present invention significantly reduces costs and is more flexible in use, and can be extended to other similar application scenarios, such as vibration testing of pyrotechnic devices.

[0032] 3. This invention relates to a remote control system for a small missile tester. By designing specialized fixtures to fix an electromagnetic actuator above the tester's buttons, remote control of the buttons is achieved. A USB-to-VGA converter enables remote monitoring of the tester's screen, and a USB splitter allows for remote operation of the mouse and keyboard, thus realizing remote control of the missile tester. This solution has been successfully tested and used in batch vibration tests, effectively reducing noise pollution during testing at a low cost, ensuring the safety of testing personnel, and combining effectiveness and reliability.

[0033] 4. This invention addresses the limited space between the rectangular button slot and the screen of a special tester for testing the vibration of the front body of a small missile. It designs a special fixture that does not affect the use of the screen and can stably install the electromagnetic actuator. This fixture cleverly solves the problem of remote control of the buttons, enabling the buttons to be remotely controlled simultaneously with video signals, data acquisition signals, and other signals, thus achieving true remote control. Attached Figure Description

[0034] Figure 1 This is a dedicated test instrument for testing the vibration of the forebody of small missiles.

[0035] Figure 2 This is a block diagram of the remote control system for the tester of the present invention;

[0036] Figure 3 This is a schematic diagram of the electromagnetic actuator fixing fixture structure of the remote control system of the tester of the present invention;

[0037] Figure 4 This is a cross-sectional view of the main body of the electromagnetic actuator fixing fixture in the control system of the present invention (dimension unit: mm).

[0038] Figure 5 This is a bottom view of the main body of the electromagnetic actuator fixing fixture in the control system of the present invention (dimension unit: mm).

[0039] Figure 6 This is a schematic diagram of mounting an electromagnetic actuator on a testing instrument using the electromagnetic actuator fixing fixture of the present invention;

[0040] Figure 7 This is a schematic diagram showing the connection of the remote control module for the tester buttons in the control system of this invention;

[0041] Figure 8 This is a connection diagram of the remote display module of the test instrument screen in the control system of the present invention;

[0042] Figure 9 This is a connection diagram of the remote control module for the test instrument's mouse and keyboard in the control system of this invention;

[0043] Figure 10 This is a schematic diagram of fixture 1 designed to fix the electromagnetic actuator during the research and development process.

[0044] Figure 11 This is a schematic diagram of fixture two designed to fix the electromagnetic actuator during the research and development process;

[0045] The attached figures are labeled as follows:

[0046] 1-Tester, 2-Tooling 1, 3-Tooling 2, 4-Electromagnetic actuator fixing tooling, 41-Through hole, 42-Groove, 5-Electromagnetic actuator power control box, 6-DC regulated power supply, 7-USB-VGA converter, 8-Monitor, 9-Keyboard, 10-Mouse, 11-USB splitter, 12-Tester buttons, 13-Power cord, 14-VGA long cable. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0048] like Figure 2As shown, this invention provides a remote control system for a small missile tester, mainly including a remote control module for the tester buttons, a remote display module for the tester screen, and a remote control module for the tester mouse and keyboard. These modules work together to remotely control the tester buttons, screen, mouse, and keyboard during vibration testing. As mentioned in the background section, the tester has five circular buttons (D1, D2, D4), reserved buttons 1 and 2, and one square button (D3). During vibration testing, only buttons D1 and D4 are used for workflow control; therefore, the remote button control primarily focuses on remotely controlling buttons D1 and D4.

[0049] The aforementioned remote control module for the tester's buttons includes two electromagnetic actuators, an electromagnetic actuator mounting fixture, an electromagnetic actuator power control box, a DC regulated power supply, and a shielded power cable. The two electromagnetic actuators are mounted directly above buttons D1 and D4 on the tester via the mounting fixture, and the distance between them and the buttons is adjustable. During the design of the electromagnetic actuator mounting fixture, due to the close proximity of the tester's button slot to the screen and the very limited space between the buttons and the edge of the button slot, some designs were eliminated, such as: Figure 10 The structure shown has a fixture that is slightly wider than the testing instrument. It is fixed to both sides of the testing instrument with screws. However, there were concerns that if the screws were too loose, the electromagnetic actuator would wobble during operation, while tightening them too much could damage the equipment. Therefore, the design was later phased out. Figure 11 The structure shown uses the weight of the testing instrument itself to hold down the second fixture. While this method is relatively stable and reliable, its disadvantages include the fixture being bulky, difficult to assemble and disassemble, and the bottom of the testing instrument becoming uneven due to the fixture's weight, resulting in overall instability. After summarizing the advantages and disadvantages of the first two structures, a design was developed as follows... Figures 3-6 The electromagnetic actuator mounting fixture shown can be stably mounted in the rectangular button slot of the tester. The main body is hollowed out in the middle to accommodate the electromagnetic actuator. A through hole for mounting the electromagnetic actuator is provided at the bottom of the main body corresponding to the position of the tester's circular button, and a square groove is provided corresponding to the position of the tester's square button to prevent contact with the square button. The overall size of the main body does not affect the use of the tester screen. The mounting fixture is made of stainless steel and weighs approximately 3.5 kg. A lighter material might cause the electromagnetic actuator to tip over during operation, damaging the tester screen. The entire fixture is compact and portable. It is simply inserted into the tester's button slot for use, and pulled upwards for disassembly. Operation is simple and convenient. The number of electromagnetic actuators installed can be determined according to the actual application scenario. In this embodiment, only the electromagnetic actuators controlling tester buttons D1 and D4 are installed using screws. The distance between the electromagnetic actuators and the tester buttons is adjustable within the range of 1-5 mm.

[0050] In the selection of electromagnetic actuators, a thrust gauge is first used to measure the force required to press the button, and then a vernier caliper is used to measure the button's initial and pressed positions. Finally, an electromagnetic actuator with suitable thrust and stroke length is selected. In this embodiment, the KK-0837 electromagnetic actuator is selected, with an adjustable thrust range of 1~20N, a maximum stroke of 10mm, and selectable operating voltages of 12V and 24V. The operating current varies under different operating voltages.

[0051] The electromagnetic actuator power control box is equipped with multiple self-reset switches (two are used in this embodiment, the rest are reserved), with one self-reset switch corresponding to each electromagnetic actuator. In this embodiment, each electromagnetic actuator has two power input lines, which are connected to the corresponding self-reset switch inside the electromagnetic actuator power control box via a 30-meter shielded power cable. A set of normally open contacts of the self-reset switch is connected to the positive and negative terminals of a DC regulated power supply via short wires. The operating voltage is 24V, and the current is approximately 600mA. Figure 7 As shown.

[0052] The remote display module of the tester screen includes a USB-VGA converter, a long VGA cable, and a monitor.

[0053] The existing missile test equipment only has a few USB ports for signal output. Therefore, a suitable USB-VGA converter should be selected. The converter's USB port connects to the test equipment's USB port, and the VGA port connects to the VGA port of a remote monitor via a 30-meter VGA cable. Figure 8 As shown, by setting the tester display to copy mode and adjusting the screen resolution, the tester's screen content can be simultaneously displayed on a remote monitor, enabling real-time monitoring of the product's condition during vibration testing.

[0054] The tester's remote control module for mouse and keyboard includes a 30-meter USB splitter, mouse, and keyboard. For example... Figure 9 As shown, another USB port of the tester is connected to one end of the USB splitter, and the other end of the USB splitter is connected to the remote mouse and keyboard respectively. Before the product vibration test starts, the current product number and test status need to be entered in the process test software. After the test is completed, a vibration test report needs to be generated. The remote control of the mouse and keyboard makes it convenient for testers to remotely control the above operations.

[0055] In summary, the remote control system for a small missile tester provided by this invention mainly controls the tester remotely through three aspects: buttons, screen, and input (mouse and keyboard), similar to copying the tester to a remote location for use. The specific testing method is as follows:

[0056] 1) Install the remote control system in place, including: installing the electromagnetic actuator in the corresponding hole position of the electromagnetic actuator fixing fixture, clamping the electromagnetic actuator fixing fixture in the rectangular button slot of the tester, and connecting the electromagnetic actuator power control line to the DC regulated power supply through the electromagnetic actuator power control box, etc.; In the initial state before the test starts, the two electromagnetic actuators are located directly above the tester buttons D1 (i.e., process start) and D4 (i.e. process end) respectively, and are not in contact with the buttons;

[0057] 2) Use the mouse and keyboard to enter the product number on the testing software of the testing instrument, and click Start Test;

[0058] 3) Control the corresponding electromagnetic actuator to press button D1 on the tester via the electromagnetic actuator power control box to start the test process;

[0059] 4) Control the corresponding electromagnetic actuator to press button D4 on the tester via the electromagnetic actuator power control box to complete the test;

[0060] 5) After the test is completed, use the mouse and keyboard to operate the testing software of the testing instrument and generate a test report;

[0061] The cable length in this invention is 30 meters, which is determined based on the distance between the vibration table and the measurement and control unit in actual operation. In other application scenarios, this length can be adjusted according to specific circumstances. Furthermore, due to current limitations, the VGA interface monitor used in this embodiment can be flexibly converted to an HDMI digital interface in the future, thereby obtaining a more stable and clearer image during long-distance transmission.

[0062] The remote control solution provided by this invention can also be applied to other work scenarios, such as remote control of vibration testing of pyrotechnics, and other testing equipment with keypads and screens. The above application examples are only for illustrating the technical concept and features of this invention, and are intended to enable those skilled in the art to understand the content of this invention and implement it accordingly. They should not be used to limit the scope of protection of this invention. All equivalent changes or modifications made according to the spirit and essence of this invention should be covered within the scope of protection of this invention.

Claims

1. A remote control system for a small missile tester, characterized in that: This includes a remote control module for the tester buttons, a remote display module for the tester screen, and a remote control module for the tester mouse and keyboard. The remote control module of the tester includes two electromagnetic actuators, an electromagnetic actuator fixture, an electromagnetic actuator power control box, a DC regulated power supply, and a shielded power cord. The two electromagnetic actuators are respectively mounted directly above the tester buttons D1 and D4 via electromagnetic actuator fixing fixtures, and the distance between them and the buttons is adjustable. The electromagnetic actuator power control box is equipped with multiple self-reset switches, with each electromagnetic actuator corresponding to one self-reset switch. A set of normally open contacts of the self-reset switch are first connected to the positive and negative terminals of the DC regulated power supply through short wires, and then connected to the two ends of the power control line of the corresponding electromagnetic actuator through the shielded power line, which is used to control the conduction and disconnection of the working power supply of the electromagnetic actuator. The remote display module of the tester screen includes a converter, a long cable, and a display. One end of the converter is connected to the USB interface of the tester, and the other end is connected to the display via a long cable. The display shows the screen content of the tester in real time. The remote control module for the tester's mouse and keyboard includes a USB splitter, a mouse, and a keyboard; the tester connects to the mouse and keyboard via the USB splitter to enable remote operation of the tester via buttons and mouse.

2. The remote control system for the small missile tester according to claim 1, characterized in that: The electromagnetic actuator fixing fixture is stably mounted in the rectangular button slot of the tester. Its main body is hollowed out in the middle to accommodate the electromagnetic actuator. The bottom of its main body has a through hole for installing the electromagnetic actuator at the position corresponding to the circular button of the tester. The overall size of its main body does not affect the use of the tester screen.

3. The remote control system for the small missile tester according to claim 2, characterized in that: A square groove is provided on the bottom of the electromagnetic actuator fixing fixture body, corresponding to the position of the square button on the tester.

4. The remote control system for the miniature missile tester according to any one of claims 1-3, characterized in that: The electromagnetic actuator is selected in the following manner: The force required for buttons D1 and D4 is measured using a thrust gauge to determine the magnitude of the thrust. Use vernier calipers to measure the initial and pressed positions of buttons D1 and D4 to determine the travel length; Select an electromagnetic actuator that matches the thrust and stroke length.

5. The remote control system for the miniature missile tester according to claim 4, characterized in that: The electromagnetic actuator is model KK-0837, with an adjustable thrust ranging from 1 to 20N and a maximum stroke of 10mm. Its position relative to the button on the testing instrument is adjustable from 1 to 5mm.

6. The remote control system for the miniature missile tester according to claim 5, characterized in that: The electromagnetic actuator fixture is made of stainless steel and weighs 3.5±0.3kg.

7. The remote control system for the miniature missile tester according to claim 6, characterized in that: The converter is a USB-VGA converter.

8. A method for controlling testing using the remote control system of the small missile tester according to any one of claims 1-7, characterized in that, Includes the following steps: 1) Install the remote control system in place; 2) Use the mouse and keyboard to enter the product number on the testing software of the testing instrument, and click Start Test; 3) Control the corresponding electromagnetic actuator to press button D1 on the tester via the electromagnetic actuator power control box to start the test process; 4) Control the corresponding electromagnetic actuator to press button D4 on the tester via the electromagnetic actuator power control box to complete the test; 5) After the test is completed, use the mouse and keyboard to operate the tester software and generate a test report.

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