A sound generating device, controller performance demonstration method and device

Abstract

The present invention discloses a sound-generating device, a controller performance demonstration device and a method, comprising: a first sound-generating plate; a second sound-generating plate, arranged opposite to the first sound-generating plate; a rotating device, used to drive the first sound-generating plate to rotate; and a displacement device, used to make the first sound-generating plate and the second sound-generating plate contact with each other by friction, and to adjust the contact pressure between the first sound-generating plate and the second sound-generating plate. By controlling the rotating device and the displacement device through a controller, the first sound-generating plate and the second sound-generating plate can produce a sound, such as music, by friction, thereby very intuitively demonstrating the control performance and control accuracy of the controller.

Description

Technical Field

[0001] The present application relates to the field of industrial control technology, and in particular to a method and device for demonstrating the performance of a sound-generating device and a controller. Background Art

[0002] With the increase of labor costs and the requirement for product precision, manufacturers have an increasingly strong demand for production automation. As the control center of the automation system, the controller's control performance and control precision directly affect the automation level of the automation system and product precision.

[0003] For a controller, people can only intuitively feel the control performance and control accuracy of the controller when it controls the automation system. However, due to the size and weight limitations of the automation system, manufacturers in the automation industry can only display and introduce their products through pictures, animations, data, etc. when they need to display and introduce their products at exhibitions or visit customers. However, this method is too monotonous and boring, and it is difficult to attract the attention and interest of visitors, and it is difficult to leave a deep impression on visitors, which is not conducive to the promotion of products. In view of this, there is an urgent need for a controller performance demonstration device that can intuitively demonstrate the control performance and control accuracy of the controller with a smaller size and weight. Summary of the invention

[0004] In view of this, the main purpose of the present application is to provide a sound-generating device, a controller performance demonstration method and an apparatus, so as to intuitively display the control performance and control accuracy of the controller.

[0005] In a first aspect, the present application provides a sound-generating device, comprising: a first sound-generating plate; a second sound-generating plate, arranged opposite to the first sound-generating plate; a rotating device, used to rotate the first sound-generating plate; and a displacement device, used to make the first sound-generating plate and the second sound-generating plate contact with each other by friction, and to adjust the contact pressure between the first sound-generating plate and the second sound-generating plate. Thus, the first sound-generating plate and the second sound-generating plate can be made to produce sound by friction. Furthermore, when the rotating device and the displacement device are controlled by a controller, the first sound-generating plate and the second sound-generating plate can be made to produce sound by friction, such as music, etc., so that the control performance and control accuracy of the controller can be demonstrated very conveniently.

[0006] As a possible implementation of the first aspect, at least one of the two opposing surfaces of the first sounding plate and the second sounding plate is provided with a concave-convex structure, thereby increasing the friction between the first sounding plate and the second sounding plate, thereby increasing the volume of the sound produced by friction.

[0007] As a possible implementation of the first aspect, the displacement device includes: a displacement execution unit, used to drive the first sounding plate and the second sounding plate to approach or move away from each other; and a displacement control unit, used to control the displacement execution unit. Thus, the displacement execution unit can be controlled by the displacement control unit, and after being connected to the controller, the controller can control the displacement of the displacement device.

[0008] As a possible implementation of the first aspect, the displacement device further includes: an elastic component, the elastic component applies force to the second sounding plate in a direction to make it contact with the first sounding plate, and the displacement device changes the magnitude of the applied force by changing the deformation of the elastic component. Thus, the pressure between the first sounding plate and the second sounding plate can be controlled by controlling the deformation of the elastic component, thereby controlling the magnitude of the friction force.

[0009] As a possible implementation manner of the first aspect, the rotating device includes: a motor; and a rotation control unit, configured to control the rotation of the motor.

[0010] The second aspect of the present application provides a controller performance demonstration method, which is applied to a system including at least a controller and a controlled sound-generating device, including: controlling the first sound-generating plate to rotate by the controller; controlling the second sound-generating plate to frictionally contact with the first sound-generating plate by the controller, and adjusting the contact pressure between the first sound-generating plate and the second sound-generating plate. Thus, sound can be emitted by frictionally contacting the first sound-generating plate with the second sound-generating plate. The pitch and volume of the sound can be controlled by controlling the rotation speed of the first sound-generating plate, and the volume of the sound can be controlled by controlling the contact pressure. Furthermore, the pitch and volume of the sound can be controlled so that the sound can form a certain melody.

[0011] As a possible implementation of the second aspect, the sound-generating devices are provided in plurality, and the rotation speed and / or contact pressure of some or all of the sound-generating devices are controlled differently, so that the first sound-generating plate and the second sound-generating plate rub against each other to generate sounds of different melodies. Thus, different first sound-generating plates and second sound-generating plates can generate sounds of different tones and volumes, so that different melodies can be generated simultaneously, thereby enriching the music.

[0012] As a possible implementation of the second aspect, among the plurality of first sounding plates and the second sounding plates, the materials and / or structures of at least two of the first sounding plates and / or at least two of the second sounding plates are set to be different. Thus, the first sounding plates and / or the second sounding plates of different materials and / or structures can emit sounds of different timbres through friction, thereby making the sound richer.

[0013] The third aspect of the present application provides a controller performance demonstration device, comprising at least one sound-generating device as described in any one of the first aspects; and a controller for controlling the rotating device and the displacement device of the generating device. Thus, by controlling the rotating device and the displacement device through the controller, the first sound-generating plate and the second sound-generating plate can be rubbed against each other to produce sound, such as music. In this way, the control performance and control accuracy of the controller can be demonstrated very conveniently.

[0014] As a possible implementation of the third aspect, the control includes: controlling the rotation speed of the first sounding plate of the sound-generating device and the contact pressure between the first sounding plate and the second sounding plate, so that the first sounding plate and the second sounding plate rub against each other to produce a sound of a predetermined melody; wherein, when there are multiple sound-generating devices, the rotation speed and / or contact pressure of some or all of the sound-generating devices are controlled differently. The pitch and volume of the sound can be controlled by controlling the rotation speed of the first sounding plate, and the volume of the sound can be controlled by controlling the contact pressure. Furthermore, the pitch and volume of the sound can be controlled so that the sound can form a certain melody.

[0015] As a possible implementation of the third aspect, it further includes: a human-machine interface, wherein the human-machine interface is connected to the controller, so that human-machine interaction can be achieved through the human-machine interface, thereby enabling a person to control the controller performance demonstration device.

[0016] As a possible implementation of the third aspect, the human-machine interface is at least one of a camera, a microphone and a touch screen. Thus, multiple control modes such as voice control, motion or gesture control, touch control, etc. can be implemented. Thus, voice recognition technology and image recognition technology can be demonstrated.

[0017] As a possible implementation of the third aspect, it further includes: a data interaction unit for data exchange, wherein the data interaction unit is connected to the controller, the human-machine interface, the rotation device, and the displacement device; wherein the data interaction unit includes a switch. Thus, the data interaction technology can be demonstrated.

[0018] As a possible implementation of the third aspect, the data interaction unit is a 5G switch. Thus, the high real-time communication performance and high bandwidth performance of 5G communication technology can be demonstrated.

[0019] As a possible implementation of the third aspect, the controller is an industrial server, thereby demonstrating the control capability and data processing capability of the industrial server. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the sound-generating device in the embodiment of the present application;

[0021] Figure 2a A schematic diagram of the side structure of another sound-generating device in an embodiment of the present application;

[0022] Figure 2b This is a front structural schematic diagram of another sound-generating device in an embodiment of the present application;

[0023] Figure 2c This is a schematic diagram of the back structure of another sound-generating device in an embodiment of the present application;

[0024] Figure 3 This is a connection diagram of a controller performance demonstration device in an embodiment of the present application;

[0025] Figure 4 Flow chart of the control method in the embodiment of the present application.

[0026] Description of Reference Numerals

[0027] 10 controller performance demonstration device; 100 sound-generating device; 110 rotating device; 111 motor; 112 rotation control unit; 113 rotating shaft; 120 displacement device; 121 displacement execution unit; 122 displacement control unit; 123 driving rod; 124 movable joint; 125 elastic component; 126 fixing rod; 130 first sound-generating plate; 140 second sound-generating plate; 150 mounting frame; 151 upper mounting plate; 152 lower mounting plate; 200 controller; 300 human-computer interaction module; 310 touch control screen; 320 gram wind; 330 camera; 400 data interaction module; 410 5G switch; 500 remote I / O station. DETAILED DESCRIPTION

[0028] In order to demonstrate the control performance and control accuracy of the controller used to control the automation system, one solution is to lead visitors into the production workshop to directly visit the production process of the automation system. It can intuitively show visitors that under the control of the controller, the various rotating devices, displacement devices, etc. in the automation system can efficiently and accurately complete the entire automated production process. However, this solution can only be completed in the production workshop. When it is necessary to participate in an exhibition or to display and introduce the controller in a different location, Solution 1 cannot be implemented.

[0029] Another solution is to show the advantages of the controller in terms of control performance and control accuracy by displaying pictures, data, animations, charts, etc. However, this method is too monotonous and boring, and it is difficult to attract the attention and interest of visitors, and it is difficult to leave a deep impression on visitors, which is not conducive to the promotion of products.

[0030] In order to solve the above-mentioned defects of the prior art, the embodiments of the present application provide a sound-generating device and a controller performance demonstration device having the sound-generating device. The sound-generating device can replace the automation system, and the controller can make sounds by controlling the sound-generating device, so that visitors can feel the control performance and control accuracy of the controller through the sound. This can leave a deep impression on visitors and facilitate the promotion and introduction of products.

[0031] Example 1

[0032] The specific structure of the sound-generating device 100 in the embodiment of the present application is described in detail below in conjunction with the drawings.

[0033] Figure 1 Schematic diagram of the structure of the sound device 100 in the embodiment of the present application. Figure 1 As shown, the sound-generating device 100 includes: a first sound-generating plate 130, a second sound-generating plate 140, a rotating device 110 and a displacement device 120. The rotating device 110 is used to drive the first sound-generating plate 130 to rotate; the displacement device 120 is used to adjust the pressure between the first sound-generating plate 130 and the second sound-generating plate 140. The first sound-generating plate 130 and the second sound-generating plate 140 rotate under a certain pressure, and sound can be generated by friction. Since the change of the rotation speed and pressure will cause the change of the sound generated by friction, when the controller 200 is used to control the rotating device 110 and the displacement device 120, the first sound-generating plate 130 and the second sound-generating plate 140 can generate a predetermined sound, such as a piece of music, through friction. Thus, visitors can intuitively feel the control performance and control accuracy of the controller 200.

[0034] like Figure 1 As shown, the sound-generating device 100 also includes a mounting frame 150 , which may be C-shaped and have an upper mounting plate 151 and a lower mounting plate 152 that are relatively arranged. The rotating device 110 is fixedly mounted on the upper mounting plate 151 , and the displacement device 120 is fixedly mounted on the lower mounting plate 152 .

[0035] The rotating device 110 includes a motor 111 and a rotation control unit 112. The motor 111 is fixedly arranged on the upper mounting plate 151. The motor 111 has a rotating shaft 113 that can rotate after being energized. The rotating shaft 113 passes through the upper mounting plate 151 and extends toward the lower mounting plate 152. The motor 111 can be a variable frequency motor 111, a stepper motor 111, a servo motor 111 or other types of motors 111. The rotation control unit 112 is fixed on the motor 111. The type of the rotation control unit 112 is compatible with the type of the motor 111, and can be a frequency converter, a stepper drive or a servo drive. The rotation control unit 112 can realize the control of the motor 111 and can control the speed of the rotating shaft 113.

[0036] The first sounding plate 130 can be a plate-like component of any shape such as a circle, a square or a triangle. One side surface of the first sounding plate 130 (the side facing the upper mounting plate 151) is fixedly connected to the rotating shaft 113. When the motor 111 rotates, it can drive the first sounding plate 130 to rotate. A certain number of convex strips or grooves are arranged on the other side surface of the first sounding plate 130 (the side facing the lower mounting plate 152) to increase the friction between the first sounding plate 130 and the second sounding plate 140, thereby increasing the volume of the sound produced by friction. Here, there is no restriction on the specific shape of the convex strips or grooves, and the convex strips or grooves can be uniformly arranged, arranged according to certain rules, or arranged irregularly. Preferably, the convex strips or grooves can be uniformly arranged, so that the frequency of the sound produced by friction can be more stable, thereby making the sound produced by friction more stable.

[0037] The displacement device 120 includes a displacement control unit 122 and a displacement execution unit 121. The displacement execution unit 121 is fixedly arranged on the lower mounting plate 152. The displacement execution unit 121 can be an electrically, pneumatically or hydraulically driven mechanism. The displacement execution unit 121 has a driving rod 123 that can move up and down. The driving rod 123 passes through the lower mounting plate 152 and extends toward the upper mounting plate 151. A movable joint 124 is also arranged at one end of the driving rod 123 facing the upper mounting plate 151. One end of the movable joint 124 is sleeved on the driving rod 123 and can move along the driving rod 123. An elastic component 125 is arranged between the movable joint 124 and the driving rod 123, so that an elastic connection is achieved between the movable joint 124 and the driving rod 123. The elastic component 125 can be a compressible spring sleeved on the driving rod 123, or it can be an elastic rubber arranged between the movable joint 124 and the driving rod 123. The displacement control unit 122 may be an electric, pneumatic or hydraulically driven regulating valve, and the displacement driving unit may control the driving rod 123 of the displacement execution unit 121 to move up and down. Thus, the pressure between the first sounding plate 130 and the second sounding plate 140 may be controlled by controlling the deformation of the elastic component 125, thereby controlling the friction force.

[0038] The second sounding plate 140 can be a plate-like component of any shape such as a circle, a square or a triangle. One side surface of the first sounding plate 130 (the side facing the lower mounting plate 152) is fixedly connected to the movable joint 124. When the driving rod 123 moves up and down, it can drive the second sounding plate 140 to move up and down. A certain number of convex strips or grooves are arranged on the other side surface of the first sounding plate 130 (the side facing the upper mounting plate 151) to increase the friction between the first sounding plate 130 and the second sounding plate 140, thereby increasing the volume of the sound produced by friction. Here, there is no restriction on the specific shape of the convex strips or grooves, and the convex strips or grooves can be uniformly arranged, arranged according to certain rules, or arranged irregularly. Preferably, the convex strips or grooves can be uniformly arranged, so that the frequency of the sound produced by friction can be more stable, thereby making the sound produced by friction more stable.

[0039] When the sound-generating device 100 in the embodiment of the present application is required to emit a sound, the rotation control unit 112 controls the motor 111 to rotate, thereby driving the first sound-generating plate 130 to rotate. The displacement control unit 122 controls the driving rod 123 of the displacement execution unit 121 to move upward, thereby driving the second sound-generating plate 140 to move toward the first sound-generating plate 130. When the first sound-generating plate 130 contacts the second sound-generating plate 140, friction occurs between the first sound-generating plate 130 and the second sound-generating plate 140, thereby generating a sound of a certain frequency, and the faster the first sound-generating plate 130 rotates, the higher the frequency of the sound generated by the friction, and the higher the tone of the sound.

[0040] When sound is produced by friction, the power P1 of the sound produced is roughly proportional to the power P2 of friction. Therefore, the greater the power P2 of friction, the greater the power P1 of the sound will be, and the corresponding volume of the sound will be greater. Under ideal conditions, it can be considered that:

[0041] P1≈P2

[0042] Since the friction power P2 is the product of the friction force F1 and the relative motion speed v between the first sounding plate 130 and the second sounding plate 140, that is,

[0043] P2=F1v

[0044] The friction force F1 is the product of the pressure F2 between the first sounding plate 130 and the second sounding plate 140 and the dynamic friction coefficient k1, that is,

[0045] F1=F2k1

[0046] The pressure F2 between the first sounding plate 130 and the second sounding plate 140 can be converted into the elastic force F3 of the elastic component 125. The elastic force F3 is the product of the elastic coefficient k2 and the deformation length l, that is,

[0047] F2=F3=k2l

[0048] The rotation speed of the relative motion between the first sounding plate 130 and the second sounding plate 140 is v, the rotation speed of the first sounding plate 130 is n, and the radius of the first sounding plate 130 is r, that is:

[0049] v=2πrn / 60

[0050] In summary,

[0051] P1≈P2=k2lk1v=k2lk12πrn / 60

[0052] It can be seen from the above formula that the power P1 of the sound is proportional to the rotation speed v and the deformation length l of the elastic component 125. When the pressure F2 is constant, that is, the deformation length l of the elastic component 125 is constant, increasing the rotation speed v will increase the frequency of friction, increase the pitch of the sound, and increase the power of the sound, and the volume of the sound will also increase accordingly. When the rotation speed is reduced, the pitch will be reduced accordingly, the power of the sound will be reduced, and the volume of the sound will also be reduced. When the rotation speed v is constant, the deformation length l can be adjusted by the displacement device 120 to adjust the size of the pressure F2, and then the size of the power P1 of the sound can be adjusted, and then the volume of the sound can be controlled without changing the pitch of the sound. Therefore, the pitch and volume of the sound can be controlled by controlling the rotation speed n of the first sounding plate 130 by the rotating device 110 and controlling the pressure F2 between the first sounding plate 130 and the second sounding plate 140 by the position device.

[0053] Example 2

[0054] The embodiment of the present application also provides another sound-generating device 100. The specific structure of the sound-generating device 100 of the present application is described in detail below in conjunction with the accompanying drawings.

[0055] Figure 2a It is a schematic diagram of the side structure of another sound-generating device 100 in an embodiment of the present application; Figure 2b It is a front structural schematic diagram of another sound-generating device 100 in an embodiment of the present application; Figure 2c FIG. 1 is a schematic diagram of the back structure of another sound-generating device 100 in an embodiment of the present application. Figure 2a , Figure 2b As shown, the sound-generating device 100 in Example 2 is similar to the sound-generating device 100 in Example 1 in that the rotating device 110 and the displacement device 120 of the sound-generating device 100 in Example 2 have the same structure as the rotating device 110 of the sound-generating device 100 in Example 1.

[0056] The differences between the sound-generating device 100 in Embodiment 2 and the sound-generating device 100 in Embodiment 1 are as follows:

[0057] The mounting frame 150 is plate-shaped, the motor 111 is fixedly mounted on the upper part of one side surface of the mounting frame 150, and the rotating shaft 113 of the motor 111 passes through the mounting frame 150 and is exposed from the other side surface of the mounting frame 150. The first sounding plate 130 is cylindrical, and a plurality of convex strips are evenly arranged on the outer circumference of the first sounding plate 130. The first sounding plate 130 is fixedly mounted on the rotating shaft 113, and the axis of the first sounding plate 130 coincides with the axis of the rotating shaft 113, so that the motor 111 can drive the first sounding plate 130 to rotate.

[0058] A displacement device 120 is also fixedly provided on the mounting plate, and the position device can be provided on the same side as the motor 111. The driving rod 123 of the displacement device 120 is provided toward the motor 111 and can move up and down. A C-shaped fixing rod 126 is fixedly provided on the movable joint 124 of the displacement device 120. After the fixing rod 126 extends to both sides of the movable joint 124 by one end, it passes through the mounting plate and extends from the other side surface of the mounting plate, and is used to fix the second sounding plate 140. The driving rod 123 of the displacement device 120 moves up and down, and can drive the movable joint 124 and the fixing rod 126 on the movable joint 124 to move up and down, and then drive the second sounding plate 140 to move up and down, so as to be able to contact the outer peripheral surface of the first sounding plate 130 and change the pressure between the first sounding plate 130.

[0059] In summary, the rotation speed of the first sounding plate 130 can be controlled by the rotating device 110, and the pressure between the second sounding plate 140 and the outer peripheral surface of the first sounding plate 130 can be controlled by the displacement device 120. Therefore, when the displacement device 120 drives the second sounding plate 140 to contact the outer peripheral surface of the first sounding plate 130 and generates a certain pressure, the rotating device 110 drives the first sounding plate 130 to rotate, and the first sounding plate 130 and the second sounding plate 140 will emit a sound of a certain frequency due to friction. Therefore, in order for the sound-generating device 100 to emit a predetermined sound, it is necessary to accurately control the rotation speed n of the first sounding plate 130 and accurately control the displacement of the second sounding plate 140 at the same time to control the pressure F2 between the first sounding plate 130 and the second sounding plate 140, so as to achieve the control of the tone and volume of the sound and emit the predetermined sound. Therefore, when the controller 200 can control the sound-generating device 100 to emit the required sound, the control performance and control accuracy of the controller 200 can be demonstrated.

[0060] Example 3

[0061] The embodiment of the present application also provides a controller performance demonstration device 10. The specific structure of the controller performance demonstration device 10 of the present application is described in detail below in conjunction with the accompanying drawings.

[0062] Figure 3 Schematic diagram of the connection of the controller performance demonstration device 10 in the embodiment of the present application. Figure 3 As shown, the controller performance demonstration device 10 of the present application includes: a sound device 100, a human-computer interaction module 300, a data interaction module 400, a controller 200, a data interaction module 400, and a remote I / O station 500. Among them, the sound device 100 can be one or more, and is used to make sounds through friction between the first sound plate 130 and the second sound plate 140. The human-computer interaction module 300 includes a touch control screen 310, a microphone 320, and a camera 330. The user can control the controller performance demonstration device 10 through the touch keys on the touch control screen 310. The microphone 320 can collect sound data, and the camera 330 can collect image data. The controller 200 is used to control each device on the controller performance demonstration device 10. The data interaction module 400 is used for data interaction, and has at least one switch. For example, Figure 3 The device shown has two 5G switches 410, and the two 5G switches 410 exchange data through 5G communication technology. The remote I / O station 500 is used for data collection and transmission, and can also control various devices according to the command of the controller 200. The touch control screen 310 is connected to the controller 200 and can directly send control instructions to the controller 200. The controller 200 is connected to a 5G switch 410, and the microphone 320, the camera 330, the rotation control unit 112 and the remote I / O station 500 are connected to another 5G switch 410.

[0063] In summary, by clicking the touch key on the touch control screen 310, a control instruction can be issued to the controller 200. After receiving the control instruction, the controller 200 sends the control information to the 5G switch 410, and the control information includes the rotation speed information of the first sounding plate 130 and the displacement information of the second sounding plate 140. The data exchange is completed through the 5G switch 410, so that the control information is sent to the rotation control unit 112 and the remote I / O station 500. After receiving the control information, the rotation control unit 112 can control the motor 111 to rotate according to the speed information in the control information, thereby controlling the first sounding plate 130 to rotate at the required speed. After receiving the control information, the remote I / O station 500 can send the displacement information to the corresponding displacement control unit 122 according to the requirements of the control information. The displacement control unit 122 controls the second sounding plate 140 to approach or move away from the first sounding plate 130 according to the displacement information, thereby adjusting the pressure between the second sounding plate 140 and the first sounding plate 130. Therefore, the controller 200 can precisely control the first sound plate 130 and the second sound plate 140 so that the first sound plate 130 and the second sound plate 140 can produce the desired sound through friction, thereby demonstrating the control performance and control accuracy of the controller 200.

[0064] At the same time, the microphone 320 can also collect sound data, and then send the sound data to the 5G switch 410 for data exchange, and then the 5G switch 410 sends the sound data to the controller 200. The controller 200 can recognize the sound data and issue control instructions through voice. After recognition, the controller 200 can issue control information according to the control instructions to control the sound device 100 to make sound through friction. In this way, the sound recognition technology can be demonstrated while demonstrating the control performance and control accuracy of the controller 200.

[0065] Alternatively, the image data can be collected by the camera 330, and then sent to the 5G switch 410 for data exchange, and then the 5G switch 410 sends the image data to the controller 200. The controller 200 can process the image data and issue control instructions through gestures, actions, etc. After recognition, the controller 200 can issue control information according to the control instructions to control the sound device 100 to make sounds through friction. In this way, the image processing technology can be demonstrated while demonstrating the control performance and control accuracy of the controller 200.

[0066] Furthermore, the sound frequency of the motor 111 at a specific speed can be found out through the tuner to be a certain pitch (for example, the standard A tone, the frequency is 440HZ), and then the speed of the motor 111 corresponding to each specific tone can be calculated through the musical temperament system such as the twelve-tone equal temperament, the pure temperament or the fifth temperament. For example, if the speed of the motor 111 corresponding to the standard A tone is measured to be 100rad / min, then according to the rule of the twelve-tone equal temperament, it can be calculated that the speed of the pitch one octave higher than the standard A tone is 200rad / min. In this way, the control performance and control accuracy of the controller 200 can be better demonstrated, which is convenient for leaving a deeper impression on people.

[0067] Furthermore, since real music performance is not only accompanied by changes in pitch, but also changes in sound volume, this is an emotional music performance. By adjusting the displacement of the second sounding plate 140 through the displacement device 120, the pressure between the first sounding plate 130 and the second sounding plate 140 can be adjusted, so that the friction power can be adjusted to control the volume. First, it is necessary to find the reference value of the displacement of the second sounding plate 140 corresponding to each sound under the same sound power, and adjust the displacement based on this reference to change the volume. In this way, the control performance and control accuracy of the controller 200 can be better demonstrated, so as to leave a deeper impression on people.

[0068] Furthermore, the music score can be converted into a program language readable by the controller 200. After the program is executed, the control unit runs in a cycle (the cycle can be as small as a few hundred microseconds), and each cycle outputs specific values ​​to the rotation control unit 112 and the displacement control unit 122, so that the first sounding plate 130 and the second sounding plate 140 in the sound-emitting device 100 finally form the music in the music score through friction.

[0069] Furthermore, the controller 200 can control multiple sound-generating devices 100 to emit sounds at the same time, and can control different sound-generating devices 100 to emit sounds of different tones and volumes. In this way, polyphonic music (music with more than two lines of melody or more than two notes playing simultaneously) can be played. This increases the complexity of the control, so that the control performance and control accuracy of the controller 200 can be demonstrated, which is convenient for leaving a deeper impression on people.

[0070] Furthermore, the materials and structures of the first sounding plate 130 and the second sounding plate 140 in the plurality of sounding devices 100 can be set to different specifications, and the structure can include the size of the first sounding plate 130 and the second sounding plate 140, the number of ridges or grooves, and other parts. Thus, the timbre of the sound produced by friction can be changed (referring to the fact that different sounds always have distinctive characteristics in terms of waveform, and different objects have different characteristics when vibrating. Different sounding bodies have different timbres due to their different materials and structures.) and the highest and lowest notes that can be produced can be changed, thereby enriching the performance of music. In addition, the control performance and control accuracy of the controller 200 can be better demonstrated, leaving a deeper impression on people.

[0071] Furthermore, it also includes a protocol conversion interface connected to the controller 200, through which the music data file (such as a MIDI file) can be converted in real time into a value readable by the rotation control unit 112 and the displacement control unit 122 in the controller performance demonstration device 10, and finally the controller performance demonstration device 10 plays the music in the music data file. This further improves the complexity of the control, so that the control performance and control accuracy of the controller 200 can be demonstrated, which is convenient for leaving a deeper impression on people.

[0072] Furthermore, the controller 200 may also be an industrial server, thereby demonstrating the control capability and data processing capability of the industrial server.

[0073] Example 4

[0074] A controller performance demonstration method is also provided in an embodiment of the present application, which can be performed by the above-mentioned sound-generating device 100, the controller performance demonstration apparatus 10 or any other suitable device, so as to make sounds and play music.

[0075] Figure 4 Flow chart of controller performance demonstration method 20 in the embodiment of the present application. Figure 4 As shown, the specific steps of the controller performance demonstration method 20 of the present application include:

[0076] S201, first select the data source. You can choose to obtain external data through a conversion interface, or you can choose data pre-stored in the controller 200.

[0077] S202, select to obtain external data through conversion interface. External music data files, such as Midi files, can be directly obtained through conversion interface.

[0078] S203, converting the rotation speed data. The music data file obtained by the conversion interface can be converted into the rotation speed data. The conversion formula can be:

[0079]

[0080] Wherein, n is the rotation speed of the motor 111, f is the frequency corresponding to the tone, and k3 is the temperament coefficient. Thus, the corresponding rotation speed data of the motor 111 can be obtained according to the music data file.

[0081] S204, performing displacement data conversion. The music data file obtained by the conversion interface can be converted into displacement data. The conversion formula can be:

[0082]

[0083] Wherein δL is the displacement of the displacement device 120, P1 is the real-time volume of the music corresponding to the sound power, k3 is the temperament coefficient, and k4 is the volume coefficient. Thus, the displacement data of the corresponding displacement device 120 can be obtained according to the music data file.

[0084] S205 , selecting pre-stored data in the controller 200 , where the pre-stored data includes rotation speed data of the motor 111 and displacement data of the displacement device 120 .

[0085] S206, according to the speed data of the motor 111 obtained by converting the music data file, the motor 111 is controlled to control the speed of the first sounding plate 130. According to the displacement data of the displacement device 120 obtained by converting the music data file, the displacement of the displacement device 120 is controlled to control the contact pressure between the first sounding plate 130 and the second sounding plate 140, thereby controlling the friction between the first sounding plate 130 and the second sounding plate 140. Alternatively, the speed of the motor 111 and the displacement of the displacement device 120 can also be controlled according to the pre-stored data in the controller 200.

[0086] S207, the first sounding plate 130 and the second sounding plate 140 produce sound through friction, thereby achieving music performance.

[0087] By controlling the rotation speed of the first sounding plate 130, the frequency of the sound generated by the friction between the first sounding plate 130 and the second sounding plate 140 can be controlled, thereby controlling the pitch and volume. By controlling the contact pressure between the first sounding plate 130 and the second sounding plate 140, the power of the sound generated by the friction between the first sounding plate 130 and the second sounding plate 140 can be controlled, thereby controlling the volume of the sound. Thus, by controlling the rotation speed of the first sounding plate 130 and the contact pressure between the first sounding plate 130 and the second sounding plate 140, a sound of a predetermined pitch and volume can be generated by friction.

[0088] The first sounding plates 130 and the second sounding plates 140 may also be arranged in a plurality of corresponding groups, and the materials and structures of the first sounding plates 130 and the second sounding plates 140 in each group are arranged differently, thereby generating sounds with different timbres.

[0089] The rotation speeds and contact pressures between the multiple groups of first sounding plates 130 and second sounding plates 140 are different, so that the first sounding plates 130 and second sounding plates 140 of each group can emit sounds with different tones, different timbres and different volumes, thereby making the music performance richer.

[0090] In summary, the speed data of the motor 111 and the displacement data of the displacement device 120 can be obtained by converting the data pre-stored in the controller 200 or converting the external data, so that the first sound plate 130 and the second sound plate 140 can produce a predetermined melody through friction, thereby achieving music performance. Therefore, the control performance and control accuracy of the controller 200 can be demonstrated through music, which is conducive to leaving a deeper impression on visitors.

[0091] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A sound-generating device, characterized in that: include: First Sounding Board; A second sounding plate, arranged opposite to the first sounding plate; A rotating device, used for driving the first sounding plate to rotate; A displacement device, used to make the first rotating sound-generating plate contact with the second rotating sound-generating plate by friction to generate sound; The rotating device adjusts the pitch and volume of the sound by adjusting the rotation speed of the first sounding plate, and the displacement device adjusts the volume of the sound by adjusting the contact pressure between the first sounding plate and the second sounding plate.

2. The sound generating device according to claim 1, characterized in that: At least one of the two opposite surfaces of the first sounding plate and the second sounding plate is provided with a concave-convex structure.

3. The sound generating device according to claim 1, characterized in that: The displacement device comprises: An elastic component applies force to the second sounding plate in a direction to make it contact with the first sounding plate, and the displacement device changes the magnitude of the applied force by changing the deformation of the elastic component.

4. A controller performance demonstration method, applied to a system including at least a controller and a controlled sound device, characterized in that: include: The controller controls the first sounding plate of the sounding device to rotate; The controller controls the second sounding plate of the sound-generating device to make frictional contact with the first sounding plate to generate sound; The controller adjusts the pitch and volume of the sound by adjusting the rotation speed of the first sounding plate, and the controller adjusts the volume of the sound by adjusting the contact pressure between the first sounding plate and the second sounding plate.

5. The controller performance demonstration method according to claim 4, characterized in that: The sound-generating devices are arranged in a plurality, and the rotation speed and / or contact pressure of some or all of the sound-generating devices are controlled differently, so that the first sound-generating plate and the second sound-generating plate rub against each other to generate sounds of different melodies.

6. The controller performance demonstration method according to claim 5, characterized in that: Among the plurality of the first sounding plates and the second sounding plates, the materials and / or structures of at least two of the first sounding plates and / or at least two of the second sounding plates are set to be different.

7. A controller performance demonstration device, characterized in that: include: At least one sound-generating device as claimed in any one of claims 1 to 3; A controller is used to control the rotating device and the displacement device of the sound-generating device.

8. The controller performance demonstration device according to claim 7, characterized in that: The controller controls the rotation speed of the first sounding plate of the sound-generating device and the contact pressure between the first sounding plate and the second sounding plate, so that the first sounding plate and the second sounding plate rub against each other to generate a predetermined melody of sound; Wherein, when there are multiple sound-generating devices, the rotation speed and / or contact pressure of some or all of the sound-generating devices are controlled differently.

9. The controller performance demonstration device according to claim 7, characterized in that: Also includes: A human-machine interface is connected to the controller.

10. The controller performance demonstration device according to claim 9, characterized in that: Also includes: A data exchange unit, used for data exchange, the data exchange unit is connected to the controller, the human-machine interface, the rotating device and the displacement device; Wherein, the data interaction unit includes a switch.

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