A voice plate test verification fixture for a CBCT device

Abstract

The utility model belongs to the medical image equipment test field especially, a kind of voice board test and inspection tool for CBCT equipment, it includes bottom plate, rear surrounding shell, touch screen mounting panel, switching power supply, main control board mounting plate, eight columns and touch screen, the touch screen is fixedly connected with touch screen mounting panel, touch screen mounting panel is fixedly connected with rear surrounding shell, switching power supply is fixedly connected with bottom plate, four columns in lower position are fixedly installed in the top of bottom plate, main control board mounting plate is fixedly installed in the top of four columns in lower position, four columns in upper position are fixedly installed in the top of main control board mounting plate, mounting mechanism and unlocking mechanism, in the utility model, realize whole-process closed-loop test by automatic instruction sending, response signal acquisition and algorithm analysis, eliminate artificial error, efficiency is promoted more than 80%, also have efficient heat dissipation mechanism, service life is longer.

Description

Technical Field

[0001] This utility model relates to the field of medical imaging equipment testing technology, and in particular to a testing and inspection fixture for a voice board in CBCT equipment. Background Technology

[0002] CBCT equipment typically integrates voice interaction functions (such as voice command control, voice prompts, etc.), and the voice board, as a core module, needs to undergo functional testing before leaving the factory.

[0003] Traditional testing methods have the following shortcomings: 1. Relying on manual operation item by item is inefficient and prone to errors; 2. Lack of dedicated testing tools and low standardization of testing processes; 3. Unable to quickly locate hardware or software faults in the voice board; 4. The testing environment is susceptible to external noise interference, which can affect accuracy; Therefore, this utility model proposes a testing and inspection fixture for the voice board of CBCT equipment to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies, namely: 1. reliance on manual operation, which is inefficient and prone to errors; 2. lack of dedicated testing tools and low standardization of testing procedures; 3. inability to quickly locate hardware or software faults in the voice board; and 4. susceptibility of the testing environment to external noise interference, affecting accuracy. Therefore, this utility model proposes a testing and inspection fixture for the voice board of CBCT equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A testing and inspection fixture for the voice board of a CBCT device includes a base plate, a rear enclosure, a touch screen mounting panel, a switching power supply, a main control board mounting plate, eight columns, and a touch screen. The touch screen is fixedly connected to the touch screen mounting panel, which is fixedly connected to the rear enclosure. The switching power supply is fixedly connected to the base plate. Four columns located at the bottom are fixedly mounted on the top of the base plate. The main control board mounting plate is fixedly mounted on the top of the four columns located at the bottom, and four columns located at the top are fixedly mounted on the top of the main control board mounting plate. The device also includes... The installation mechanism and the unlocking mechanism are provided. There are four sets of installation mechanisms and two sets of unlocking mechanisms. The installation mechanisms cooperate with the rear enclosure and the unlocking mechanism, respectively. The testing and inspection mechanism includes: a main control board, a speaker, a microphone board, a voice board, and a top board; The main control board is fixedly installed on the top of the main control board mounting plate. The pull plate, microphone board and voice board are all fixedly installed on the top of the top plate. The top plate is fixedly installed on the top of the four columns located at the top. A heat dissipation mechanism, comprising: a filter screen, a cooling fan, and a docking sleeve; The outer side of the filter screen slides in contact with the rear enclosure, and the cooling fan is fixedly connected to two mating sleeves, both of which are fixedly installed on the inner wall of the rear enclosure.

[0006] Through the above structure, the entire process of closed-loop testing is achieved through automated command sending, response signal acquisition and algorithm analysis, eliminating human error and improving efficiency by more than 80%. It also has a highly efficient heat dissipation mechanism and a long service life.

[0007] As a preferred embodiment of this utility model, the installation mechanism includes: a docking block, a fitting block, a spring, and a spring seat; The mating block is fixedly installed on the filter screen and extends to the inside of the mating sleeve. The fitting block is slidably connected to the inner wall of the mating sleeve. The fitting block is fixedly connected to the spring, the spring is fixedly connected to the spring seat, and the spring seat is fixedly connected to the mating sleeve.

[0008] Furthermore, after the mating block and the docking block engage, the mating block can connect the docking block and the docking sleeve to prevent the docking block from separating from the docking block on the docking sleeve, thereby realizing the installation of the docking block and the filter screen, so that the filter screen can be stably placed on the rear enclosure shell for stable filtration.

[0009] As a preferred embodiment of this utility model, the unlocking mechanism includes: a pull rod, a contact rod, a fixing block, and a push rod. The pull rod is rotatably connected to the mating block and mating rod located on the left side. The mating rod is slidably connected to the fixed block, which is fixedly installed on the inner wall of the mating sleeve. The push rod is slidably connected to the inner wall of the mating sleeve and extends to the outside of the mating sleeve. The push rod is fixedly connected to the mating block located on the right side.

[0010] Furthermore, when the lever is pressed to the left, the lever can move the bonding block located on the right to the left. Then, the lever can squeeze the bonding rod to slide on the fixed block, so that the bonding rod can pull the pulling rod, which in turn can pull the bonding block located on the left to the right. This allows the two bonding blocks at the same height to come closer to each other and disengage from the two mating blocks at the current position, thus unlocking the filter and enabling the filter to be disassembled.

[0011] As a preferred embodiment of this utility model, both mating sleeves are provided with symmetrically arranged insertion through holes, and the outer side of the mating block slides in contact with the inner wall of the insertion through hole.

[0012] Furthermore, the filter screen can be installed after the docking block is inserted into the docking sleeve.

[0013] As a preferred embodiment of this utility model, the mating block is provided with a mating groove, and the outer side of the mating block slides in contact with the inner wall of the mating groove.

[0014] Furthermore, after the bonding block is inserted into the inside of the mating groove, the bonding block can prevent the mating block from moving, thus enabling the installation of the mating block and the filter screen.

[0015] As a preferred embodiment of this utility model, the fixing block is provided with a vertical sliding groove, and the left side of the fitting rod is slidably connected to the inner wall of the vertical sliding groove.

[0016] Furthermore, the vertical groove is used to install the bonding rod, so that the bonding rod can stably drive the bonding block located on the left side to move. Beneficial effects

[0017] 1. Propose modular testing fixtures that are compatible with multiple models of CBCT equipment; 2. Integrated noise environment simulation function to improve the coverage of test scenarios; 3. Adopt an automated closed-loop testing process to reduce manual intervention; 4. Built-in fault diagnosis algorithm, which can locate abnormalities in hardware circuits or software logic; 5. After the mating block and the docking block are engaged, the mating block can connect the docking block and the docking sleeve to prevent the docking block from separating from the docking block on the docking sleeve, so as to realize the installation of the docking block and the filter screen, so that the filter screen can be stably placed on the rear enclosure shell and perform stable filtration. 6. When the lever is pressed to the left, the lever will move the mating block located on the right to the left. Then the lever will push the mating rod to slide on the fixed block, so that the mating rod can pull the pulling rod, which will pull the mating block located on the left to the right. This allows the two mating blocks at the same height to come closer to each other and disengage from the two mating blocks at the current position, thus unlocking the filter and allowing the filter to be disassembled. In this invention, the entire closed-loop testing process is achieved through automated command sending, response signal acquisition, and algorithm analysis, eliminating human error and improving efficiency by more than 80%. It also features a highly efficient heat dissipation mechanism and a longer service life. Attached Figure Description

[0018] Figure 1 This is a three-dimensional front view schematic diagram of the structure of a voice board testing and inspection fixture for CBCT equipment proposed in this utility model; Figure 2 This is an exploded three-dimensional structural diagram of a voice board testing and inspection fixture for CBCT equipment proposed in this utility model; Figure 3 This is a rear-view three-dimensional schematic diagram of the structure of a voice board testing and inspection fixture for CBCT equipment proposed in this utility model. Figure 4 This invention presents a three-dimensional schematic diagram of the main view section of a voice board testing and inspection fixture for CBCT equipment. Figure 5 This is a top-view, cross-sectional, and magnified three-dimensional schematic diagram of a voice board testing and inspection fixture for CBCT equipment proposed in this utility model.

[0019] In the diagram: 1. Base plate; 2. Rear surround shell; 3. Touch screen mounting panel; 4. Switching power supply; 5. Main control board mounting plate; 6. Main control board; 7. Speaker; 8. Microphone board; 9. Voice board; 10. Column; 11. Touch screen; 12. Filter; 13. Cooling fan; 14. Connecting sleeve; 15. Connecting block; 16. Adhesive block; 17. Spring; 18. Spring seat; 19. Pull rod; 20. Adhesive rod; 21. Fixing block; 22. Press rod; 23. Top plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0021] Reference Figure 1-5 A testing and inspection fixture for a voice board in a CBCT device includes a base plate 1, a rear enclosure 2, a touch screen 11 mounting panel 3, a switching power supply 4, a main control board mounting plate 5, eight columns 10, and a touch screen 11. The touch screen 11 is fixedly connected to the touch screen 11 mounting panel 3, and the touch screen 11 mounting panel 3 is fixedly connected to the rear enclosure 2. The switching power supply 4 is fixedly connected to the base plate 1. The four columns 10 located at the bottom are fixedly mounted on the top of the base plate 1. The main control board mounting plate 5 is fixedly mounted on the top of the four columns 10 located at the bottom, and the four columns 10 located at the top are fixedly mounted on the top of the main control board mounting plate 5. The device also includes... The installation mechanism and the unlocking mechanism are provided. There are four sets of installation mechanisms and two sets of unlocking mechanisms. The installation mechanisms are respectively matched with the rear bumper shell 2 and the unlocking mechanism. The testing and inspection mechanism includes: main control board 6, speaker 7, microphone board 8, voice board 9, and top board 23; The main control board 6 is fixedly installed on the top of the main control board mounting plate 5. The pull plate, microphone board 8 and voice board 9 are all fixedly installed on the top of the top plate 23. The top plate 23 is fixedly installed on the top of the four columns 10 located at the upper position. The heat dissipation mechanism includes: a filter screen 12, a cooling fan 13, and a docking sleeve 14; The outer side of the filter screen 12 slides in contact with the rear enclosure 2, and the cooling fan 13 is fixedly connected to two docking sleeves 14. Both docking sleeves 14 are fixedly installed on the inner wall of the rear enclosure 2.

[0022] Through the above structure, the entire process of closed-loop testing is achieved through automated command sending, response signal acquisition and algorithm analysis, eliminating human error and improving efficiency by more than 80%. It also has a highly efficient heat dissipation mechanism and a long service life.

[0023] In this utility model, the installation mechanism includes: a docking block 15, a fitting block 16, a spring 17, and a spring seat 18; The mating block 15 is fixedly installed on the filter screen 12. The mating block 15 extends to the inner side of the mating sleeve 14. The fitting block 16 is slidably connected to the inner wall of the mating sleeve 14. The fitting block 16 is fixedly connected to the spring 17. The spring 17 is fixedly connected to the spring seat 18. The spring seat is fixedly connected to the mating sleeve 14. After the fitting block 16 and the mating block 15 are engaged, the fitting block 16 can connect the mating block 15 and the mating sleeve 14 to prevent the mating block 15 from separating from the mating sleeve 14, thereby realizing the installation of the mating block 15 and the filter screen 12. This allows the filter screen 12 to be stably placed on the rear enclosure shell 2 for stable filtration.

[0024] In this utility model, the unlocking mechanism includes: a pull rod 19, a contact rod 20, a fixing block 21, and a push rod 22. Pull rod 19 is rotatably connected to the bonding block 16 and bonding rod 20 located on the left side. The bonding rod 20 is slidably connected to the fixed block 21, which is fixedly installed on the inner wall of the docking sleeve 14. Press rod 22 is slidably connected to the inner wall of the docking sleeve 14 and extends to the outside of the docking sleeve 14. Press rod 22 is fixedly connected to the docking block 15 located on the right side. When press rod 22 is pressed to the left, it can move the bonding block 16 located on the right side to the left. Then, press rod 22 can squeeze the bonding rod 20 to slide on the fixed block 21, so that the bonding rod 20 can pull pull rod 19, which can pull the bonding block 16 located on the left side to the right. This allows the two bonding blocks 16 at the same height to approach each other and disengage from the two docking blocks 15 at the current position, thus unlocking the filter screen 12 and disassembling it.

[0025] In this utility model, both docking sleeves 14 are provided with symmetrically arranged insertion through holes. The outer side of the docking block 15 slides in contact with the inner wall of the insertion through hole. After the docking block 15 is inserted into the docking sleeve 14, the filter screen 12 can be installed.

[0026] In this utility model, a docking groove is provided on the docking block 15, and the outer side of the fitting block 16 slides in contact with the inner wall of the docking groove. After the fitting block 16 is inserted into the inner side of the docking groove, the fitting block 16 can block the docking block 15 from moving, thereby realizing the installation of the docking block 15 and the filter screen 12.

[0027] In this utility model, a vertical groove is provided on the fixing block 21, and the left side of the bonding rod 20 is slidably connected to the inner wall of the vertical groove. The vertical groove is used to install the bonding rod 20, so that the bonding rod 20 can stably drive the bonding block 16 located on the left side to move.

[0028] The working principle of this utility model: 1. Main control module: It uses STM32F4 series microcontrollers such as STM32F407VGT6, which have a built-in Cortex-M4 core and FPU unit, with a main frequency of 168MHz, and supports high-speed data processing; It integrates a 12-bit high-precision ADC with a sampling rate of 2.4MSPS and a DAC module for voice signal acquisition and analog command output; The DMA controller enables direct transfer of audio data between memory, reducing CPU usage and improving real-time performance. Voice simulation module: The DAC output channel based on STM32 generates a preset voice command waveform, which is then driven by a power amplifier circuit such as TPA2012D2 and output to the voice board under test 9. Background noise simulation is achieved by controlling a white noise generator chip such as MAX98357 through the internal PWM module of STM32, which supports dynamic adjustment of the signal-to-noise ratio from -10dB to 30dB. 2. Software Implementation Embedded firmware development: Develop a low-level driver based on the STM32 HAL library to implement timing control for voice command transmission, audio acquisition, and protocol communication; The STM32 timer TIM is used to precisely control the instruction transmission interval error to <1ms, ensuring the standardization of the test process; Noise environment simulation algorithm: A real-time noise superposition algorithm is implemented using the ARM CMSIS-DSP library of STM32 to dynamically mix clean speech commands with background noise. Fault diagnosis module: The STM32's FFT function was used to perform spectral analysis on the acquired response signal at a resolution of 1024 points to detect harmonic distortion (THD) and signal-to-noise ratio (SNR). Test reports are stored in CSV format on an external SD card and read / written via the STM32 SDIO interface, supporting export and analysis. 3. During equipment operation, two cooling fans 13 can be activated. One cooling fan 13 blows air towards the inside of the rear enclosure 2, while the other cooling fan 13 draws air from the inside of the rear enclosure 2. All air is filtered by the filter 12, effectively reducing the temperature inside the enclosure and achieving heat dissipation for the equipment. When the filter 12 needs maintenance after prolonged use, simply press the two levers 22. When the levers 22 are pressed to the left, they move the bonding block 16 located on the right side to the left. Then, the levers 22 push the bonding rod 20 to slide on the fixed block 21, allowing the bonding rod 20 to pull the pull rod 19, which in turn pulls the bonding block 16 located on the left side. The connecting block 16 moves to the right, allowing the two connecting blocks 16 at the same height to approach each other and disengage from the two docking blocks 15 at the current position. This unlocks the filter screen 12, enabling its disassembly. After cleaning, the outer shell is inserted into the inner side of the docking sleeve 14, and the four connecting blocks 16 are released. This allows the four connecting blocks 16 to automatically reset and engage with the four docking blocks 15. Once the connecting blocks 16 and docking blocks 15 are engaged, the connecting blocks 16 can connect the docking blocks 15 to the docking sleeve 14, preventing the docking blocks 15 from disengaging from the docking sleeve 14. This allows the docking blocks 15 and the filter screen 12 to be installed, ensuring that the filter screen 12 is stably positioned on the rear enclosure 2 for stable filtration.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing and inspection fixture for a voice board in a CBCT device, comprising a base plate (1), a rear enclosure shell (2), a touch screen (11) mounting panel (3), a switching power supply (4), a main control board mounting plate (5), eight columns (10), and a touch screen (11), wherein the touch screen (11) is fixedly connected to the touch screen (11) mounting panel (3), the touch screen (11) mounting panel (3) is fixedly connected to the rear enclosure shell (2), the switching power supply (4) is fixedly connected to the base plate (1), four columns (10) located at the lower position are fixedly installed on the top of the base plate (1), the main control board mounting plate (5) is fixedly installed on the top of the four columns (10) located at the lower position, and four columns (10) located at the upper position are fixedly installed on the top of the main control board mounting plate (5), characterized in that, The device also includes The number of installation mechanisms is four sets, and the number of unlocking mechanisms is two sets. The installation mechanisms cooperate with the rear enclosure shell (2) and the unlocking mechanisms respectively. The testing and inspection mechanism includes: a main control board (6), a speaker (7), a microphone board (8), a voice board (9), and a top board (23). The main control board (6) is fixedly installed on the top of the main control board mounting plate (5). The pull plate, microphone board (8) and voice board (9) are all fixedly installed on the top of the top plate (23). The top plate (23) is fixedly installed on the top of the four columns (10) located at the upper position. The heat dissipation mechanism includes: a filter screen (12), a cooling fan (13), and a docking sleeve (14). The outer side of the filter (12) slides in contact with the rear enclosure (2), and the cooling fan (13) is fixedly connected to two docking sleeves (14). Both docking sleeves (14) are fixedly installed on the inner wall of the rear enclosure (2).

2. The voice board testing and inspection fixture for CBCT equipment according to claim 1, characterized in that, The installation mechanism includes: a docking block (15), a fitting block (16), a spring (17), and a spring seat (18); The mating block (15) is fixedly installed on the filter screen (12). The mating block (15) extends to the inside of the mating sleeve (14). The fitting block (16) is slidably connected to the inner wall of the mating sleeve (14). The fitting block (16) is fixedly connected to the spring (17). The spring (17) is fixedly connected to the spring seat (18). The spring seat is fixedly connected to the mating sleeve (14).

3. The voice board testing and inspection fixture for CBCT equipment according to claim 1, characterized in that, The unlocking mechanism includes: a pull rod (19), a contact rod (20), a fixing block (21), and a push rod (22): The pull rod (19) is rotatably connected to the mating block (16) and mating rod (20) located on the left side, respectively. The mating rod (20) is slidably connected to the fixing block (21). The fixing block (21) is fixedly installed on the inner wall of the mating sleeve (14). The push rod (22) is slidably connected to the inner wall of the mating sleeve (14). The push rod (22) extends to the outside of the mating sleeve (14). The push rod (22) is fixedly connected to the mating block (15) located on the right side.

4. The voice board testing and inspection fixture for CBCT equipment according to claim 2, characterized in that, Both docking sleeves (14) have symmetrically arranged insertion through holes, and the outer side of the docking block (15) slides in contact with the inner wall of the insertion through hole.

5. The voice board testing and inspection fixture for CBCT equipment according to claim 2, characterized in that, The docking block (15) has a docking groove, and the outer side of the fitting block (16) slides in contact with the inner wall of the docking groove.

6. The voice board testing and inspection fixture for CBCT equipment according to claim 3, characterized in that, A vertical groove is provided on the fixing block (21), and the left side of the fitting rod (20) is slidably connected to the inner wall of the vertical groove.

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