Automobile vibration noise acquisition equipment and automobile vibration noise acquisition system

Abstract

The embodiment of the utility model provides an automobile vibration noise acquisition device and an automobile vibration noise acquisition system. The automobile vibration noise acquisition device comprises a display module; the CAN communication interface is connected with the display module, the CAN communication interface is used for receiving the test signal, and the display module is used for displaying the test signal; the test signal comprises a sound signal; and the wireless communication module is connected with the display module and the head-mounted equipment, and the wireless communication module is used for sending the sound signals to the head-mounted equipment. According to the automobile vibration noise acquisition device, a multi-channel interface is replaced by the CAN interface, and the structure and the size of the CAN interface are simpler than those of the multi-channel interface, so that the multi-channel interface and various parts configured by the multi-channel interface are reduced, the weight and the size of the automobile vibration noise acquisition device are reduced, and the automobile vibration noise acquisition device is easy to carry. Meanwhile, a test signal can be received and displayed through the CAN interface, a sound signal can be sent to the head-mounted device through the wireless module, and a tester can use the head-mounted device to hear the vibration noise of the automobile.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle testing, and in particular to an automobile vibration and noise collection device and an automobile vibration and noise collection system. Background Art

[0002] The existing vibration and noise collection equipment on the market are all multi-channel, require a matching module, and weigh about 1kg. For tests that need to quickly identify the problem point, this kind of equipment cannot be conveniently carried, especially for long-distance business trips and out-of-town tests. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a car vibration and noise collection device and a car vibration and noise collection system, which can be small in size, have display and signal transmission functions, and are easy to carry.

[0004] The embodiment of the present application provides a vehicle vibration and noise collection device, including:

[0005] Display module;

[0006] A CAN communication interface is connected to the display module, the CAN communication interface is used to receive a test signal, and the display module is used to display the test signal; the test signal includes: a sound signal;

[0007] A wireless communication module is connected to the display module and the head-mounted device, and the wireless communication module is used to send the sound signal to the head-mounted device.

[0008] In the above implementation process, the present application uses a CAN interface to replace a multi-channel interface. The CAN interface is simpler in structure and volume than a multi-channel interface. Therefore, the multi-channel interface and the various parts configured therein are reduced, and the weight and volume of the automobile vibration noise collection device are reduced, making it easy to carry. At the same time, the test signal can be received and displayed through the CAN interface, and the sound signal can be sent to the head-mounted device through the wireless module, so that the tester can use the head-mounted device to hear the vibration noise of the car.

[0009] Furthermore, the test signal also includes: the rotation speed, torque and current of the vehicle.

[0010] In the above implementation process, the CAN interface can receive multiple test signals, and the display module can display multiple test signals, thereby improving the suitability of the automobile vibration and noise collection device for multiple test scenarios.

[0011] Furthermore, the automobile vibration and noise collection device further includes: a preprocessing module, the processing module is used to preprocess the test signal; the display module is used to display the preprocessing module and the processed test signal.

[0012] In the above implementation process, by preprocessing the test signal, the displayed test signal is made more accurate, and the tester can better obtain the test results of the car and the noise generation results.

[0013] Further, the pre-processing module includes: a filtering module;

[0014] The filtering module is used to filter the test signal.

[0015] In the above implementation process, by filtering the test signal, the displayed test signal is made more accurate, and the tester can better obtain the test results of the car and the noise generation results.

[0016] Further, the preprocessing module also includes: a Fourier analysis module for performing Fourier and time analysis on the test signal;

[0017] The display module is used to display the Fourier and time analysis results.

[0018] In the above implementation process, by performing Fourier and time analysis on the test signal, the displayed test signal is made more accurate and comprehensive, and the tester can better obtain the test results of the car and the noise generation results.

[0019] Further, the preprocessing module includes: an order extraction module;

[0020] The order extraction module is used to extract the order of the test signal;

[0021] The display module is used to display the order extraction result.

[0022] In the above implementation process, by extracting the order of the test signal, the displayed test signal is made more accurate and comprehensive, and the tester can better obtain the test results of the car and the noise generation results.

[0023] Furthermore, the automobile vibration and noise collection device includes: a storage module and a playing module, the storage module is used to store the sound signal; the playing module is used to obtain and play the sound signal from the storage module.

[0024] In the above implementation process, the automobile vibration and noise collection device includes: a storage module and a playing module, the storage module is used to store the sound signal; the playing module is used to obtain and play the sound signal from the storage module, thereby realizing the repeatable playback of the sound.

[0025] Furthermore, the automobile vibration and noise collection device further comprises: a data transmission interface;

[0026] The data transmission interface includes: a USB interface and a TypeC interface;

[0027] The USB interface and the Typec interface are used to connect to external devices, and the automobile vibration and noise collection device is used to transmit the test signal to the external device through the USB interface and the Typec interface.

[0028] In the above implementation process, the test signal can be transmitted to an external device through the USB interface and the Type-c interface, which is convenient for testers to share and transmit.

[0029] Furthermore, the wireless communication module includes: the wireless communication module includes: a WiFi module and a Bluetooth module.

[0030] In the above implementation process, the WiFi module and the Bluetooth module can realize short-distance and fast transmission of test signals.

[0031] In a second aspect, the present application provides a vehicle vibration and noise collection system, comprising: the vehicle vibration and noise collection device and a head-mounted device as described in any one of the first aspects.

[0032] Other features and advantages disclosed in the present application will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology disclosed in the present application.

[0033] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the structure of a vehicle vibration and noise collection device provided in an embodiment of the present application;

[0036] Figure 2 Another structural schematic diagram of the automobile vibration and noise collection device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0038] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] See also Figure 1 , the embodiment of the present application provides a vehicle vibration and noise collection device, including:

[0040] Display module 1;

[0041] A CAN communication interface 2 is connected to the display module 1, the CAN communication interface 2 is used to receive a test signal, and the display module 1 is used to display the test signal; the test signal includes: a sound signal;

[0042] The wireless communication module 3 is connected to the display module 1 and the head mounted device, and the wireless communication module 3 is used to send the sound signal to the head mounted device.

[0043] In some embodiments, the automobile vibration and noise collection device includes: a storage module, the storage module stores the test signal received through the CAN communication interface 2, the storage module is connected to the display module 1 and the wireless communication module 3; the display module 1 obtains and displays the test signal in the storage module, and the wireless communication module 3 obtains and sends the test signal in the storage module to the head-mounted device.

[0044] In some embodiments, the display module 1 is integrated with the storage module, the storage module stores the test signal received through the CAN communication interface 2, and the storage module is connected to the wireless communication module 3; the display module 1 obtains and displays the test signal in the storage module, and the wireless communication module 3 obtains and sends the test signal in the storage module to the head-mounted device.

[0045] In some embodiments, the head mounted device may be a wireless headset.

[0046] In some embodiments, the display module 1 is a touch screen.

[0047] In some embodiments, the automobile vibration and noise collection device includes: a processor, which is connected to other modules of the automobile vibration and noise collection device and is used to control the working status of the other modules.

[0048] In some embodiments, the display module 1 is a smart device including a touch screen, such as an IPAD.

[0049] In the above implementation process, the present application uses a CAN interface to replace a multi-channel interface. The CAN interface is simpler in structure and volume than a multi-channel interface. Therefore, the multi-channel interface and the various parts configured therein are reduced, and the weight and volume of the automobile vibration noise collection device are reduced, making it easy to carry. At the same time, the test signal can be received and displayed through the CAN interface, and the sound signal can be sent to the head-mounted device through the wireless module, so that the tester can use the head-mounted device to hear the vibration noise of the car.

[0050] In some embodiments, the test signal also includes: the speed, torque, and current of the vehicle.

[0051] In the above implementation process, the CAN interface can receive a variety of test signals, and the display module 1 can display a variety of test signals, thereby improving the suitability of the automobile vibration and noise collection device for a variety of test scenarios.

[0052] In some embodiments, the automobile vibration and noise collection device further includes: a preprocessing module, the processing module is used to preprocess the test signal; the display module 1 is used to display the preprocessing module and the processed test signal.

[0053] In the above implementation process, by preprocessing the test signal, the displayed test signal is made more accurate, and the tester can better obtain the test results of the car and the noise generation results.

[0054] In some embodiments, the pre-processing module includes: a filtering module;

[0055] The filtering module is used to filter the test signal.

[0056] The filtering module can be a filtering circuit or a single chip microcomputer, FPGA, etc. with a filtering algorithm.

[0057] In the above implementation process, by filtering the test signal, the displayed test signal is made more accurate, and the tester can better obtain the test results of the car and the noise generation results.

[0058] In some embodiments, the preprocessing module further includes: a Fourier analysis module for performing fast Fourier and time analysis on the test signal;

[0059] The Fourier analysis module is also used to perform Fourier and time analysis on the test signal.

[0060] The display module 1 is used to display the Fourier and time analysis results.

[0061] The display module 1 is used to display the fast Fourier and time analysis results.

[0062] The analysis result can be a color graph of FFT (fast Fourier transform) vs time (a graph of the fast Fourier transform result of the test signal changing over time).

[0063] Fast Fourier transform and time analysis (FFT vs time) is an existing technology and will not be described in detail here.

[0064] The Fourier analysis module may be a single chip microcomputer or FPGA etc. including Fourier and time analysis algorithms.

[0065] In the above implementation process, by performing Fourier and time analysis on the test signal, the displayed test signal is made more accurate and comprehensive, and the tester can better obtain the test results of the car and the noise generation results.

[0066] In some embodiments, the preprocessing module includes: an order extraction module;

[0067] The order extraction module is used to extract the order of the test signal;

[0068] The display module 1 is used to display the order extraction result.

[0069] Order extraction is an existing technology and will not be described in detail here.

[0070] The order extraction may be a single chip microcomputer or FPGA etc. which includes the Fourier order extraction algorithm.

[0071] In the above implementation process, by extracting the order of the test signal, the displayed test signal is made more accurate and comprehensive, and the tester can better obtain the test results of the car and the noise generation results.

[0072] In some embodiments, the automobile vibration and noise collection device includes: a storage module and a playing module, the storage module is used to store the sound signal; the playing module is used to obtain and play the sound signal from the storage module.

[0073] In some embodiments, the user sends a selected sound signal and a repeat play signal to the processor through the display module 1, and the processor controls the play device to obtain the selected sound from the storage module and play it.

[0074] In the above implementation process, the automobile vibration and noise collection device includes: a storage module and a playing module, the storage module is used to store the sound signal; the playing module is used to obtain and play the sound signal from the storage module, thereby realizing the repeatable playback of the sound.

[0075] See also Figure 2,In some embodiments, the automobile vibration and noise collection device further includes: a data transmission interface 4;

[0076] The data transmission interface 4 includes: a USB interface and a Typec interface;

[0077] The USB interface and the Typec interface are used to connect to external devices, and the automobile vibration and noise collection device is used to transmit the test signal to the external device through the USB interface and the Typec interface.

[0078] The external device can be a mobile phone or a computer.

[0079] In the above implementation process, the test signal can be transmitted to an external device through the USB interface and the Type-c interface, which is convenient for testers to share and transmit.

[0080] In some embodiments, the wireless communication module 3 includes: the wireless communication module 3 includes: a WiFi module and a Bluetooth module.

[0081] In the above implementation process, the WiFi module and the Bluetooth module can realize short-distance and fast transmission of test signals.

[0082] In some embodiments, the device further includes: a power module, which is connected to the display module, playback device, processor, and wireless communication module in the device to provide power for the display module, playback device, processor, and wireless communication module.

[0083] The present application provides a vehicle vibration and noise collection system, comprising: the vehicle vibration and noise collection device described in any one of the above items and a head-mounted device.

[0084] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and a part of the module, program segment or code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0085] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0086] If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

[0087] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0088] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which 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.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A vehicle vibration and noise collection device, characterized in that: include: Display module; A CAN communication interface is connected to the display module, the CAN communication interface is used to receive a test signal, and the display module is used to display the test signal; the test signal includes: a sound signal; A wireless communication module is connected to the display module and the head-mounted device, and the wireless communication module is used to send the sound signal to the head-mounted device.

2. The automobile vibration and noise collection device according to claim 1, characterized in that: The test signal also includes: the rotation speed, torque and current of the vehicle.

3. The automobile vibration and noise collection device according to claim 2, characterized in that: The automobile vibration and noise collection device further comprises: a preprocessing module, the processing module is used to preprocess the test signal; the display module is used to display the preprocessing module and the processed test signal.

4. The automobile vibration and noise collection device according to claim 3, characterized in that: The pre-processing module includes: a filtering module; The filtering module is used to filter the test signal.

5. The automobile vibration and noise collection device according to claim 3, characterized in that: The preprocessing module also includes: a Fourier analysis module for performing Fourier and time analysis on the test signal; The display module is used to display the Fourier and time analysis results.

6. The automobile vibration and noise collection device according to claim 5, characterized in that: The preprocessing module includes: an order extraction module; The order extraction module is used to extract the order of the test signal; The display module is used to display the order extraction result.

7. The automobile vibration and noise collection device according to claim 1, characterized in that: The automobile vibration and noise collection device comprises: a storage module and a playing module, wherein the storage module is used to store the sound signal; and the playing module is used to obtain and play the sound signal from the storage module.

8. The automobile vibration and noise collection device according to claim 7, characterized in that: The automobile vibration and noise collection device also includes: a data transmission interface; The data transmission interface includes: a USB interface and a TypeC interface; The USB interface and the Typec interface are used to connect to external devices, and the automobile vibration and noise collection device is used to transmit the test signal to the external device through the USB interface and the Typec interface.

9. The automobile vibration and noise collection device according to claim 1, characterized in that: The wireless communication module includes: a wireless communication module WiFi module and a Bluetooth module.

10. An automobile vibration and noise collection system, characterized in that: include: The automobile vibration and noise collection device and head-mounted device as described in any one of claims 1 to 9.

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