Engagement sound detection device

Abstract

To provide an engagement sound detection device which increases the workability of engagement work and accurately detects engagement sound.SOLUTION: An engagement sound detection device includes: a microphone; a holding member for holding an engagement member provided at an end part of a wire harness; and a controller for controlling execution of determination processing which determines whether engagement sound by the engagement member is included in sound collected by the microphone on the basis of sound data based on the sound collected by the microphone.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a fitting noise detection device that detects fitting noise that occurs when fitting members together. [Background technology]

[0002] Wire harnesses are used to connect components together in the manufacture of products that include electrically operated components, such as automobiles, communication devices, and medical devices. A wire harness is a device in which one or more cables that transmit power or electrical signals are fitted with a connecting member, such as a connector, at the end of the cable to connect the one or more cables together to other components.

[0003] In the manufacturing process of products that use wire harnesses, workers must perform a connecting operation in which a connecting member provided at the end of the wire harness is connected to another connecting member. If the connecting operation is improper, the electrical connection between the components will not be properly established, which can cause manufacturing defects in the final product.

[0004] For this reason, Patent Documents 1 and 2 disclose a method for determining whether a joining operation is successful by detecting the "jointing sound" that occurs when joining components. In Patent Documents 1 and 2, the joining sound is detected by collecting sound data using a wristwatch-type device worn by the worker during the joining operation. The joining sound is a "predetermined sound" that occurs when the joining components are properly joined, and is also called a "click sound." For example, the joining components have a locking mechanism that maintains the joined state when the joining components are properly joined together. The joining sound is generated when the two joining components are properly locked together by the locking mechanism. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2023-112729 [Patent Document 2] Japanese Patent Publication No. 2022-108326 Summary of the Invention [Problem to be solved by the invention]

[0006] In order to reduce manufacturing defects in products that require joining operations in the manufacturing process, it is necessary to improve the workability of the joining operation and to accurately detect joining noise.

[0007] The present disclosure provides a technology for improving the workability of fitting work and for accurately detecting fitting noise. [Means for solving the problem]

[0008] According to one aspect of the present disclosure, a coupling noise detection device includes a microphone, a holding member for holding a coupling member provided at an end of a wire harness, and a controller that controls the execution of a determination process that determines whether the sound collected by the microphone includes a coupling noise caused by the coupling member based on sound data based on the sound collected by the microphone. [Effects of the Invention]

[0009] According to the present disclosure, the workability of the fitting work can be improved and fitting noise can be detected with high accuracy. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing a schematic configuration example of a mixed sound detection system including a mixed sound detection device. [Figure 2] FIG. 1 is a schematic perspective view showing an example of an interference noise detection device. [Figure 3] FIG. 10 is a diagram showing an example of a state in which a wire harness is held by a mating noise detection device. [Figure 4] FIG. 2 is a diagram showing an example of a schematic external appearance of a head of the interference noise detection device. [Figure 5] FIG. 2 is a diagram showing an example of the functional configuration of a combined sound detection device. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the scope of the invention as claimed, and not all combinations of features described in the embodiments are necessarily essential to the invention. Two or more features among the multiple features described in the embodiments may be arbitrarily combined. Furthermore, the same reference numerals are used for the same or similar components, and redundant explanations will be omitted.

[0012] FIG. 1 shows an example of a joint sound detection system including a joint sound detection device 100. The joint sound detection device 100 is used during joint work in a factory. The joint sound detection device 100 can be configured to be wirelessly accessible to a local area network (LAN) 200 installed in the factory. A manufacturing system 600 that manages the manufacturing process in the factory is connected to the LAN 200. The LAN 200 is also connected to the Internet 300, which is also connected to a learning server 400 and a database 500.

[0013] The combined sound detection device 100 according to this embodiment uses a learning model to detect combined sounds during combined work. The learning server 400 collects sound data (sound data) from multiple combined sound detection devices 100 during combined work, and performs machine learning based on the collected sound data to generate a learning model.

[0014] Since the joint sound may differ depending on the type of joint component, a learning model may be generated for each type of joint component. That is, a learning model may be associated with the type of joint component. The type of joint component may be distinguished by the shape or material of the joint component. If the same learning model can be applied to different types of joint components, the same learning model may be used. That is, one learning model may be used to detect joint sounds of multiple types of joint components. For example, if multiple types of joint components for which the same learning model can be used are considered as one component group, a learning model may be generated in association with the component group.

[0015] Furthermore, because the background noise in a factory may differ from factory to factory, a learning model may be generated for each factory (location) where the interference sound detection device 100 is used. In other words, a learning model may be associated with the location where the learning model is used. Note that if the same learning model can be applied even if the locations where the learning model is used are different, the same learning model may be used. In other words, one learning model may be commonly used in multiple locations. For example, if multiple locations where the same learning model can be used are considered to be one location group, a learning model may be generated in association with the location group. Furthermore, a learning model may be generated for each combination of the type of interference component and the factory (location) where the interference sound detection device 100 is used. Furthermore, a learning model may be generated for each combination of a component group and a location group.

[0016] The database 500 stores one or more learning models generated by the learning server 400. Before starting a merging operation, the merging sound detection device 100 downloads and stores the learning model to be used in the merging operation from the database 500. The learning server 400 and the database 500 may be the same server. Furthermore, the database 500 may be connected to the LAN 200, and the database 500 may store only the learning models to be used in the factory where the LAN 200 is installed.

[0017] Fig. 2 is a schematic perspective view showing an example of the mating sound detection device 100, Fig. 3 shows a state in which the mating member 31 of the wire harness 3 is held by the mating sound detection device 100, and Fig. 4 shows the mating sound detection device 100 as viewed in the -X direction of Fig. 2. Note that Figs. 2 to 4 are schematic views for understanding an example of the mating sound detection device 100 and do not limit the configuration of the mating sound detection device 100. In Fig. 3, reference numeral 310 denotes a locking mechanism provided on the mating member 31, and reference numeral 32 denotes a cable of the wire harness 3.

[0018] The mating sound detection device 100 includes a head 1 and a main body 2. A plurality of types of heads 1 are provided according to the shape and size of the mating member 31 of the wire harness 3 to be worked on, and are configured to be detachable from the main body 2. A worker performs mating work by attaching the head 1 that corresponds to the mating member 31 of the wire harness 3 to be worked on to the main body 2. Various parts are stored inside the housing of the main body 2.

[0019] The head 1 is a holding member that holds the mating member 31 of the wire harness 3, and is equipped with a handle member 11 and a handle member 12. With the mating member 31 of the wire harness 3 between the handle member 11 and the handle member 12, the worker holds the mating member 31 of the wire harness 3 by grasping (gripping) the handle member 11 and the handle member 12 so that the handle member 11 and the handle member 12 move closer to each other.

[0020] As shown in Figure 3, instead of holding the entire mating member 31 with the head 1, the head 1 can be configured to grip only a predetermined area of ​​the mating member 31 on the cable 32 side, with the remaining area of ​​the mating member 31 on the side that is to be joined to another mating member protruding from the head 1.

[0021] 4, a hole 13 is provided on the side of the head 1 facing the main body 2 to allow light emitted by an optical sensor 25 (FIG. 5) provided on the main body 2 and to transmit the reflected light. The optical sensor 25 is configured to optically detect the cable 32 of the wire harness 3 when the worker holds the joining member 31 of the wire harness 3 with the head 1.

[0022] The handle members 11 and 12 are configured to be movable or deformable in a direction toward each other so that an operator can hold the mating member 31. As an example, the handle members 11 and 12 can be configured to be elastically deformable. Note that only one of the handle members 11 and 12 may be configured to be movable or deformable so that it approaches the other. Since the head 1 is configured so that an operator holds the mating member 31 by gripping it via the handle members 11 and 12, the shape of the surface of the head 1 that contacts the mating member 31 does not need to be the same as the shape of the surface of the mating member 31 that contacts the head 1. Therefore, the same head 1 can be used for multiple types of mating members 31.

[0023] 3, if the direction in which the head 1 and the main body 2 are aligned when the head 1 is attached to the main body 2 is the X direction, then the handle members 11 and 12 are provided along the Y direction when the head 1 is attached to the main body 2, but the head 1 can also be configured so that the handle members 11 and 12 are provided along the X direction. In other words, the head 1 can also be configured to be attached to the main body 2 in a state where it is rotated by 90 degrees from the state in FIG. 2 with the Z axis as the rotation axis.

[0024] Furthermore, in the configuration example shown in FIG. 3 , if the direction in which the head 1 and the main body 2 are aligned when the head 1 is attached to the main body 2 is the X direction, the longitudinal direction of the wire harness 3 held by the head 1 is approximately the Z direction. This is because the head 1 shown in the configuration example shown in FIG. 3 is configured to hold the mating member 31 of the wire harness 3 at one end in the Z direction. However, for example, if the direction in which the head 1 and the main body 2 are aligned is the X direction, the head 1 may be configured to hold the mating member 31 of the wire harness 3 at one of its two X-direction ends, the end opposite the main body 2. In other words, the head 1 may be configured to be attached to the main body 2 in a state rotated 90 degrees around the Y axis from the state shown in FIG. 2 . In this case, the cable 32 of the wire harness 3 held by the head 1 extends toward the main body 2 (the X direction). However, by pulling the cable 32 out from between the handle members 11 and 12, it does not interfere with the main body 2.

[0025] Fig. 5 shows an example of the functional configuration of the interference sound detection device 100. The hardware for realizing the functional blocks of Fig. 5 is housed in the housing of the main body 2. The controller 26 includes, for example, one or more processors, and is configured to control the interference sound detection device 100 as a whole.

[0026] As described above, the optical sensor 25 detects whether or not the mating noise detection device 100 is holding the wire harness 3. For example, the optical sensor 25 emits light through the hole 13 provided in the head 1 and receives the reflected light. When the head 1 is not holding the wire harness 3, the light emitted by the optical sensor 25 passes between the handle members 11 and 12, and therefore the optical sensor 25 does not receive the reflected light. On the other hand, when the head 1 is holding the wire harness 3, the optical sensor 25 receives the light reflected by the cable 32 of the wire harness 3. Therefore, whether or not the head 1 is holding the wire harness 3 can be detected based on whether or not the optical sensor 25 receives the reflected light.

[0027] Furthermore, a TOF (Time of Flight) sensor can be used as the optical sensor 25. The TOF sensor is an optical sensor that measures the distance to an object. The approximate distance between the TOF sensor and the cable 32 when the head 1 is holding the wire harness 3 can be determined in advance. Therefore, by using the TOF sensor, even if the head 1 receives reflected light when it is not holding the wire harness 3, it is possible to accurately detect whether the head 1 is holding the wire harness 3.

[0028] In this example, the optical sensor 25 detects the cable 32 of the wire harness 3 in a state where the worker holds the connecting member 31 of the wire harness 3 with the head 1, but it may also detect the connecting member 31 of the wire harness 3. In other words, the optical sensor 25 may be configured to detect whether or not the worker is holding the connecting member 31 of the wire harness 3 with the head 1 by detecting the wire harness 3 in a state where the connecting member 31 is held by the head 1.

[0029] The microphone 21 is, for example, a MEMS (microelectromechanical system) microphone, which converts sound into an analog sound signal and outputs it to the pre-processing unit 22. The microphone 21 may be disposed on the head 1 side within the main body 2 in order to accurately detect the interference sound. Furthermore, although not shown in FIG. 4, a hole may be provided on the side of the head 1 facing the main body 2 to make it easier for the microphone 21 to collect sound.

[0030] The preprocessing unit 22 has an analog-to-digital converter (ADC) that converts the analog sound signal output by the microphone 21 into digital sound data, and outputs the digital sound data to the determination unit 23 .

[0031] The determination unit 23 stores a learning model acquired from the database 500, and by inputting sound data from the preprocessing unit 22 to the learning model, determines whether or not the sound indicated by the sound data contains a combined sound caused by the combining member 31. The determination unit 23 then notifies the controller 26 of the determination result as to whether or not the sound indicated by the sound data contains a combined sound caused by the combining member 31, that is, the detection result as to whether or not a combined sound has been detected. Note that the function of the determination unit 23 can also be configured to be realized by the processor of the controller 26.

[0032] The controller 26 presents the detection result, indicating whether or not a mating sound has been detected, to the operator via the user interface (UI) 27 based on the determination result from the determination unit 23. For example, the UI 27 may include an LED that lights up in at least two colors. The controller controls the LED to light up in a first color when a mating sound is detected, and to light up in a second color different from the first color when a mating sound is not detected. Alternatively, the UI 27 may include an LED that lights up in a single color. The controller turns off the LED until a mating sound is detected, and turns on the LED once a mating sound is detected until a predetermined condition is satisfied. The predetermined condition may be satisfied, for example, when the user performs a confirmation input via the UI 27. Alternatively, the predetermined condition may be satisfied when the optical sensor 25 no longer detects the wire harness 3. Furthermore, the predetermined condition may be satisfied when a predetermined period of time has elapsed since the optical sensor 25 no longer detects the wire harness 3. Furthermore, the UI 27 may have a plurality of LEDs. The controller 26 changes the lighting / extinguishing state of the plurality of LEDs depending on whether or not a harmonious sound has been detected. The UI 27 may also be provided with a display that indicates whether or not a harmonious sound has been detected. Furthermore, the UI 27 may have one or more operation buttons for turning on / off the power of the harmonious sound detection device 100 and for switching the operation mode of the harmonious sound detection device 100, which will be described later.

[0033] The communication unit 24 has a function of wirelessly accessing the LAN 200 and communicating with devices on the LAN 200 or the Internet 300 such as the manufacturing system 600, the learning server 400, and the database 500.

[0034] The mixed sound detection device 100 can be configured to operate in either a "work mode" or a "learning mode." An operator can set the operating mode of the mixed sound detection device 100 via the UI 27. The work mode is a mode used when performing mixed sound work, and the learning mode is a mode used when sending sound data to the learning server 400 for machine learning.

[0035] The operation of the mating sound detection device 100 during mating work will be described below. For the mating work, the mating sound detection device 100 is set to a work mode. Furthermore, the determination unit 23 pre-stores a learning model corresponding to the wire harness 3 to be used in the mating work. Because the communication unit 24 is not necessary for the mating work, the controller 26 can set the operating state of the communication unit 24 to a "power-saving state" rather than a "normal state." The normal state is a state in which the communication unit 24 can operate normally, i.e., a state in which the communication unit 24 can communicate. The power-saving state is a state in which less power is consumed than in the normal state. For example, a state in which power supply to the communication unit 24 is cut off is one example of the power-saving state. To quickly transition to the normal state, a state in which power supply to some circuits of the communication unit 24 is continued and power supply to the remaining circuits of the communication unit 24 is cut off is also one example of the power-saving state.

[0036] As with the communication unit 24, the microphone 21 and the preprocessing unit 22 are also defined as operating states, that is, a normal state and a power-saving state. In the normal state, the microphone 21 collects sound and outputs a sound signal. On the other hand, in the power-saving state, the microphone 21 does not collect sound and therefore does not output a sound signal. Also, in the normal state, the preprocessing unit 22 outputs sound data when a sound signal is input. On the other hand, in the power-saving state, the preprocessing unit 22 does not output sound data even when a sound signal is input.

[0037] Furthermore, the determination unit 23 can also be configured to define a normal state and a power-saving state, similar to the communication unit 24. In the normal state, when sound data is input, the determination unit 23 determines whether or not a mixed sound has been detected using a learning model. On the other hand, in the power-saving state, the determination unit 23 does not make a determination using the learning model.

[0038] In this embodiment, the controller 26 controls the interference sound detection device 100 so that it executes the determination process for determining interference sounds only while the optical sensor 25 detects the wire harness 3 and does not execute the determination process during other periods. Therefore, the controller 26 sets both the microphone 21 and the pre-processing unit 22 to a power-saving state while the optical sensor 25 is not detecting the wire harness 3. In other words, the controller 26 controls the interference sound detection device 100 so that it does not collect sound while the optical sensor 25 is not detecting the wire harness 3. Therefore, sound data is not input to the determination unit 23, and therefore the determination process is not executed. It should be noted that, instead of setting both the microphone 21 and the pre-processing unit 22 to a power-saving state while the optical sensor 25 is not detecting the wire harness 3, it is also possible to set only one of the microphone 21 and the pre-processing unit 22 to a power-saving state and the other to a normal state, thereby preventing sound collection.

[0039] In addition, if the operating state of the determination unit 23 is configured to be settable, the determination unit 23 can also be set to the power saving state while the optical sensor 25 is not detecting the wire harness 3.

[0040] When the optical sensor 25 detects the wire harness 3, the controller 26 transitions the functional blocks that were set to the power-saving state while the optical sensor 25 was not detecting the wire harness 3 to the normal state. In other words, while the optical sensor 25 is detecting the wire harness 3, the controller 26 sets all of the microphone 21, the preprocessing unit 22, and the determination unit 23 to the normal state.

[0041] Therefore, during one determination period from when the interference sound detection device 100 holds the wire harness 3 until it no longer holds the wire harness 3, the microphone 21 and the pre-processing unit 22 collect sounds and output sound data. Then, the determination unit 23 determines whether or not the sound indicated by the sound data input from the pre-processing unit 22 includes an interference sound, and notifies the controller 26 of the determination result. In other words, the determination unit 23 notifies the controller 26 of the detection result of whether or not an interference sound has been detected during one determination period.

[0042] The controller 26 presents the determination result by the determination unit 23 to the worker via the UI 27. A determination result indicating that a joint sound has been detected indicates that the joint work was good, and a determination result indicating that a joint sound has not been detected indicates that the joint work was not good.

[0043] Furthermore, if no interference sound is detected in the determination process, the controller 26 can be configured to notify the manufacturing system 600 of an error via the communication unit 24. In response to the error notification, the manufacturing system 600 can start necessary processing, such as stopping the production line. In this case, the controller 26 sets the communication unit 24 to the normal state at least while the determination process is being performed.

[0044] Next, the operation of the fitting sound detection device 100 when set to learning mode will be described. The only difference from the work mode is that the communication unit 24 transmits sound data to the learning server 400 via the LAN 200 and the Internet 300. Therefore, in learning mode, the controller 26 sets the communication unit 24 to a normal state while the fitting sound detection device 100 holds the wire harness 3. After performing the fitting work, the worker individually checks whether the fitting work is successful, separately from the judgment result based on the learning model, and transmits the worker's confirmation result to the learning server 400 via the UI 27. For example, the worker can confirm whether the fitting work is successful by checking whether the fitting components are locked together by the locking mechanism. The worker's confirmation result becomes the correct label for the sound data transmitted immediately before. In learning mode, the judgment result by the judgment unit 23 is unnecessary, so in learning mode, the controller 26 can set the judgment unit 23 to a power-saving state.

[0045] As described above, according to this embodiment, the mating sound detection device 100 has a head 1 that allows the worker to hold the mating member 31 of the wire harness 3. When a worker holds the mating member 31 directly with his or her hands to perform the mating work, the worker may not be able to hold the mating member 31 stably due to the size, shape, and position of the mating member 31 in the product, making it difficult to perform the mating work correctly. On the other hand, in the mating sound detection device 100 according to this embodiment, the worker holds the mating member 31 via the head 1, allowing the worker to hold the mating member 31 stably. Therefore, the workability of the mating work can be improved compared to when the worker holds the mating member 31 directly with his or her hands to perform the mating work.

[0046] Furthermore, in this embodiment, sounds during the fitting operation are collected by a microphone 21 provided on the main body 2 of the fitting sound detection device 100. By using the fitting sound detection device 100 of this embodiment, sounds can be collected at a position closer to the fitting member 31 than with conventional wristwatch-type devices, and therefore the accuracy of the fitting sound determination by the learning model can be improved.

[0047] Furthermore, the components of the mating sound detection device 100 are controlled so that sound is collected while the worker is holding the wire harness 3 with the head 1, that is, while the worker is performing the mating work, and sound is not collected while the worker is not holding the wire harness 3 with the head 1, that is, while the worker is not performing the mating work. With this configuration, the power consumption of the mating sound detection device 100 can be reduced.

[0048] Second Embodiment Next, the second embodiment will be described, focusing on the differences from the first embodiment. In the first embodiment, a configuration was described in which a learning model was generated for each location (factory) or location group in which the interference sound detection device 100 is used. This was because background noise can differ from factory to factory. In this embodiment, noise information indicating the background noise of the location (factory) in which the interference sound detection device 100 is used is stored in the database 500. The noise information can be digital data generated by collecting background noise for each location (factory) in which the interference sound detection device 100 is used or for each location group.

[0049] The controller 26 acquires noise information about the location where the interference sound detection device 100 is used from the database 500 via the communication unit 24 and stores the information in the pre-processing unit 22. The pre-processing unit 22 outputs sound data representing the sound obtained by subtracting the background noise represented by the noise information from the sound represented by the sound signal. Therefore, the sound data with the background noise reduced is input to the determination unit 23, thereby enabling the interference sound to be detected with high accuracy.

[0050] Third Embodiment Next, the third embodiment will be described, focusing on the differences from the second embodiment. In the second embodiment, noise information was generated in advance and stored in the database 500. In this embodiment, the noise information is generated and updated by the noise detection device 100 during the noise merging process.

[0051] The controller 26 starts the determination process when the optical sensor 25 detects the wire harness 3, and stops the determination process when the optical sensor 25 no longer detects the wire harness 3. In this embodiment, when the controller 26 stops the determination process, it starts a background noise measurement process. The period for performing the measurement process may be set in the controller 26 in advance. In this case, the controller 26 ends the measurement process when a predetermined period has elapsed since the start of the measurement process. Alternatively, the measurement process may be performed until the optical sensor 25 detects the wire harness 3. In this case, the controller 26 starts the measurement process when the determination process ends, and continues the measurement process until the start of the next determination process is triggered. The controller 26 sets at least one of the microphone 21 and the pre-processing unit 22 to a power-saving state while neither the determination process nor the measurement process is being performed.

[0052] During the measurement process, the controller 26 sets the microphone 21 and the pre-processing unit 22 to a normal state. Then, the pre-processing unit 22 determines background noise based on the sound signal input from the microphone 21 during the measurement process and generates noise information. Alternatively, the pre-processing unit 22 updates noise information that has already been generated based on the sound signal input from the microphone 21 during the measurement process.

[0053] As described above, by measuring background noise during the fitting operation, the influence of background noise, which may vary depending on the time and date, can be suppressed, and therefore fitting sounds can be determined with high accuracy.

[0054] <Other forms> In the system configuration of Figure 1, the learning server 400 and database 500 are connected to the Internet 300, but the learning server 400 and database 500 can also be configured to be connected to the LAN 200. In this case, the LAN 200 can also be a closed network within the factory that is not connected to the Internet 300.

[0055] In addition, it is possible to provide a separate combination sound detection device that is used only for combination work, i.e., a combination sound detection device that operates only in the work mode described above, and a combination sound detection device that is used only for collecting learning data, i.e., a combination sound detection device that operates only in the learning mode described above.

[0056] Furthermore, the above-described interference sound detection device 100 has a communication unit 24, and acquires the learning model, noise information, etc. via a network. However, it is also possible to configure the interference sound detection device 100 so that the learning model, noise information, etc. are stored in the interference sound detection device 100 via a universal serial bus (USB) memory device or the like, and instead omit the communication unit 24. Furthermore, the communication unit 24 may be a wired communication interface such as a USB interface.

[0057] Furthermore, in the above embodiment, the optical sensor 25 detects whether the head 1 is holding the connecting member 31 of the wire harness 3, but a sensor of a type other than an optical sensor may be used to detect whether the head 1 is holding the connecting member 31 of the wire harness 3. For example, a flag whose position changes depending on whether the head 1 is holding the connecting member 31 of the wire harness 3 can be provided in the head 1, and a mechanical sensor may be used to detect whether the head 1 is holding the connecting member 31 of the wire harness 3 based on the position of the flag. Furthermore, an ultrasonic sensor or the like with a frequency that does not interfere with sounds in the location where the head 1 is used may be used to detect whether the head 1 is holding the connecting member 31 of the wire harness 3.

[0058] The above configuration improves the workability of the joining work and enables accurate detection of joining sounds. This will contribute to achieving Goal 9 of the United Nations' Sustainable Development Goals (SDGs), which is to "Build resilient infrastructure, promote sustainable industrialization, and foster innovation."

[0059] The invention is not limited to the above-described embodiment, and various modifications and variations are possible within the scope of the gist of the invention. [Explanation of symbols]

[0060] 21: microphone, 1: head, 25: optical sensor, 26: controller

Claims

1. A microphone and a holding member for holding a mating member provided at an end of the wire harness; a controller that controls the execution of a determination process that determines whether or not the sound collected by the microphone includes an acoustic noise caused by the acoustic noise member, based on sound data based on the sound collected by the microphone; A coupling sound detection device comprising:

2. The mating noise detection device according to claim 1 , further comprising a sensor that detects the wire harness in which the mating member is held by the holding member.

3. The mating noise detection device according to claim 2 , wherein the controller does not execute the determination process while the sensor does not detect the wire harness.

4. The interference noise detection device according to claim 3 , wherein the controller does not execute the determination process by not collecting sound with the microphone while the sensor is not detecting the wire harness.

5. The interference noise detection device according to claim 2 , wherein the holding member is configured to be detachable from a housing that houses the microphone, the sensor, and the controller.

6. The mating noise detection device according to claim 2 , wherein the sensor detects the wire harness by emitting light through a hole formed in the holding member.

7. 2. The coupling noise detection device according to claim 1, wherein the holding member includes two handle members for holding the coupling member by pinching it.

8. 8. The interference noise detection device according to claim 7, wherein at least one of the two handle members is configured to be movable or deformable in a direction approaching the other.

9. 2. The interference sound detection device according to claim 1, further comprising a pre-processing unit that stores noise information indicating background noise, and outputs the sound data indicating the sound obtained by subtracting the background noise from the sound collected by the microphone based on the sound collected by the microphone and the noise information.

10. 10. The apparatus for detecting a convoluted sound according to claim 1, further comprising a determination means for determining whether the convoluted sound is included in the sound represented by the sound data from the start of the determination process to the end of the determination process, using a learning model.

11. The apparatus for detecting vowels according to claim 10, further comprising a communication means for communicating with a server device storing one or more learning models to acquire the learning models.

12. The apparatus of claim 10 , wherein the learning model is associated with a location where the apparatus is used.

13. The fitting noise detection device according to claim 10 , wherein the learning model is associated with a type of the fitting member.

14. 7. The interference noise detection device according to claim 2, further comprising a communication means for transmitting the sound data while the sensor is detecting the wire harness to a network when operating in a first mode, and for not transmitting the sound data while the sensor is detecting the wire harness to the network when operating in a second mode.

15. The incoherent sound detection device according to any one of claims 1 to 9, further comprising a communication means for wirelessly notifying a predetermined device of an error when the determination process determines that the incoherent sound is not included in the sound collected by the microphone.

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