Vehicle-mounted intelligent terminal and vehicle

Abstract

The utility model relates to the technical field of automobile manufacturing, and discloses a vehicle-mounted intelligent terminal, which comprises a driving assembly, a power supply assembly and a control assembly, the interaction assembly is used for interacting with a user, and the interaction assembly is provided with a transmission shaft in the first direction; the transmission assembly comprises a first transmission part and a second transmission part which are in transmission connection, the first transmission part is in transmission connection with the driving assembly, and the second transmission part is in transmission connection with the transmission shaft; the driving assembly drives the interaction assembly to rotate through the transmission assembly. The utility model provides the vehicle-mounted intelligent terminal capable of realizing action interaction and the vehicle.

Description

Technical Field

[0001] This application relates to the field of automobile manufacturing, and more particularly to an in-vehicle intelligent terminal and a vehicle. Background Art

[0002] With the development of artificial intelligence technology, artificial intelligence technology tends to be applied in automobiles. Among them, various in-vehicle intelligent terminals have emerged.

[0003] Most in-vehicle intelligent terminals can perform voice interaction and display information interaction with users or passengers. However, the existing in-vehicle intelligent terminals lack interaction in terms of actions during the interaction with users. Summary of the Utility Model

[0004] This application mainly solves the problem that the existing in-vehicle intelligent terminals lack interaction with users in terms of actions. It provides an in-vehicle intelligent terminal and a vehicle that can achieve action interaction.

[0005] To solve the above technical problems, on the one hand, this application provides an in-vehicle intelligent terminal, characterized in that the in-vehicle intelligent terminal includes,

[0006] A driving component;

[0007] An interaction component, the interaction component is connected to the driving component, the interaction component is used to interact with the user, and the interaction component is provided with a transmission shaft along a first direction;

[0008] A transmission component, the transmission component includes a first transmission member and a second transmission member that are in transmission connection, the first transmission member is in transmission connection with the driving component, and the second transmission member is in transmission connection with the transmission shaft; wherein,

[0009] The driving component drives the interaction component to rotate through the transmission component.

[0010] In an implementable embodiment, the in-vehicle intelligent terminal further includes

[0011] A housing, the transmission component is located inside the housing, the first end of the transmission shaft is connected to the interaction component, the second end of the transmission shaft extends into the housing and is in transmission connection with the second transmission member, and the transmission shaft is connected to the housing through a connection component.

[0012] In an implementable embodiment, the driving component includes,

[0013] A driving motor, the driving motor is fixedly connected to the first transmission member through a first fixing member;

[0014] A circuit board, the circuit board is electrically connected to the driving motor, and the circuit board is arranged on one side of the transmission component.

[0015] In one possible implementation, the vehicle-mounted intelligent terminal further includes

[0016] a sensing assembly, the sensing assembly includes a first sensing member and a second sensing member which are correspondingly arranged, the first sensing member is arranged on the circuit board, the second sensing member is arranged on the second transmission member, and the first sensing member and the second sensing member act together to detect the rotation angle of the second transmission member relative to the housing.

[0017] In one possible implementation, the transmission shaft is in transmission connection with the second transmission member through a spline.

[0018] In one possible implementation, the housing is divided into an upper housing and a lower housing up and down, and the upper housing and the lower housing are detachably connected.

[0019] In one possible implementation, the connection assembly includes a first connecting member and a second connecting member. The transmission shaft is connected to the upper housing through the first connecting member to enable the transmission shaft to rotate within the upper housing, and the transmission shaft is connected to the lower housing through the second connecting member to enable the transmission shaft to rotate within the lower housing.

[0020] In one possible implementation, the first connecting member is a bushing. There is an interference fit between the first connecting member and the transmission shaft, and a clearance fit between the first connecting member and the upper housing. An axial ring is formed on the upper surface of the first connecting member, and the axial ring abuts against the upper housing to limit the downward movement of the transmission shaft;

[0021] The second connecting member is a rotating slider. The second connecting member is connected to the second end of the transmission shaft in a fixed connection manner. There is a clearance fit between the second connecting member and the lower housing. The upper surface of the second connecting member abuts against the second transmission member and confines the second transmission member between the upper housing and the rotating slider to limit the upward movement of the transmission shaft.

[0022] In one possible implementation, the connection assembly further includes an elastic member. The elastic member is sleeved outside the transmission shaft. The elastic member is located between the second transmission member and the upper housing. The elastic member abuts against the second transmission member and the upper housing respectively to form compression of the elastic member, and the elastic member simultaneously forms an axial acting force on the second transmission member and the upper housing.

[0023] On the other hand, the present application provides a vehicle, characterized in that the vehicle-mounted intelligent terminal as described in Embodiment 1 is installed inside the cockpit of the vehicle.

[0024] Compared with the prior art, the interaction component is connected to the driving component. The driving component drives the interaction component to rotate through the transmission component according to the interaction instruction issued by the interaction component, so as to realize the action interaction of the vehicle-mounted intelligent terminal.

[0025] Therefore, the present application has the characteristics of reasonable structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG Figure 1 is a schematic structural diagram of a vehicle-mounted intelligent terminal of the present application;

[0027] FIG Figure 2 is a schematic structural diagram between the driving component and the transmission component of the present application;

[0028] FIG Figure 3 is a schematic structural diagram of a transmission shaft of the present application;

[0029] FIG Figure 4 is a partial cross-sectional view of a vehicle-mounted display terminal of the present application.

[0030] Description of the reference numerals in the drawings:

[0031] 100, interaction component; 110, transmission shaft; 111, first transmission section; 112, second transmission section; 113, third transmission section;

[0032] 200, driving component; 210, driving motor; 220, circuit board; 221, third through hole; 230, first fixing member;

[0033] 300, transmission component; 310, first transmission member; 320, second transmission member;

[0034] 400, housing; 410, first housing; 411, first through hole; 412, second through hole; 420, second housing;

[0035] 500, connection component; 510, first connection member; 511, shaft collar; 520, second connection member; 530, elastic member; 540, second fixing member;

[0036] 600, induction component; 610, first induction member; 620, second induction member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] In order to make the objectives, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0038] In the prior art, there is a technical problem that in-vehicle intelligent terminals lack interaction with users in terms of actions.

[0039] For this reason, on the one hand, the present application provides an in-vehicle intelligent terminal, characterized in that the in-vehicle intelligent terminal includes

[0040] A driving component;

[0041] An interaction component, the interaction component is connected to the driving component, the interaction component is used to interact with the user, and the interaction component is provided with a transmission shaft along a first direction;

[0042] A transmission component, the transmission component includes a first transmission member and a second transmission member that are transmission-connected, the first transmission member is transmission-connected to the driving component, and the second transmission member is transmission-connected to the transmission shaft; wherein,

[0043] The driving component drives the interaction component to rotate through the transmission component.

[0044] On the other hand, the present application provides a vehicle, characterized in that an in-vehicle intelligent terminal as described in any one of Embodiment 1 is installed inside the cockpit of the vehicle.

[0045] Embodiment 1:

[0046] Please refer to Attached Figure 1 to Attached Figure 4 As shown, a specific implementation manner of the in-vehicle intelligent terminal of the present application is presented. The in-vehicle intelligent terminal of the present application is used to interact with users (such as drivers, passengers, etc.) inside the cockpit. The interaction methods include voice, gestures, etc. After the in-vehicle intelligent terminal determines the type of user interaction instruction, it commands other components of the vehicle to execute the interaction instruction, such as closing the sunroof, playing music, etc. Further, the in-vehicle intelligent terminal of the present application can simultaneously implement action interaction. For example, when the user issues an interaction instruction, the in-vehicle intelligent terminal commands other components of the vehicle to respond while commanding the rotation of the interaction component 100 to achieve action response. In one embodiment, if the user hopes to command the opening of the sunroof through the in-vehicle intelligent terminal on a rainy day, the in-vehicle intelligent terminal prompts the user through voice that it is raining in the current area and the sunroof should not be opened. At the same time, the in-vehicle intelligent terminal generates a shaking action by rotating the interaction component 100, and further vividly indicates through shaking that the sunroof cannot be opened because it is raining in the current area.

[0047] Attached Figure 1 is a schematic structural diagram of the in-vehicle intelligent terminal of the present application. Please refer to Attached Figure 1As shown, the in-vehicle intelligent terminal of the present application includes an interaction component 100. In the present application, the interaction component 100 is used to receive user instructions and send the user instructions to other components of the vehicle at the same time to direct the components to perform corresponding operations. In the present application, the interaction component 100 can accept relevant instructions such as user gestures, voices, or the coordination of gestures and voices. In the present application, instructions such as closing the sunroof, navigation, and playing music can be implemented by the interaction component 100.

[0048] In the present application, the interaction component 100 is installed in the cockpit of the vehicle. Further, the vehicle is installed on the upper surface of the central control area. The interaction component 100 includes a display screen module, a camera module, a microphone module, etc.

[0049] In one embodiment, the display screen of the interaction component 100 is a circular structure. The circular structure of the display screen of the interaction component 100 is only a specific implementation manner of the present application, and the display screen of the interaction component 100 of the present application can also be of any structure.

[0050] Please refer to the appendix Figure 1 As shown, the in-vehicle intelligent terminal of the present application includes a transmission shaft 110. The transmission shaft 110 is located at the bottom of the interaction component 100 and is used to transmit the circumferential rotation of the driving component 200 to further realize the rotation of the interaction component.

[0051] In one embodiment, the cross-section of the transmission shaft 110 is a circular structure.

[0052] Please refer to the appendix Figure 1 As shown, the in-vehicle intelligent terminal of the present application further includes a driving component 200 and a transmission component 300. The driving component 200 includes a driving motor 210 and a circuit board 220. The driving motor 210 is electrically connected to the circuit board 220, and the circuit board 220 is connected to the interaction component 100. The interaction component 100 sends relevant instructions to the driving motor 210, and the driving motor 210 drives the transmission component 300 to rotate a certain angle according to the relevant instructions. The driving motor 210 is fixedly connected to the transmission component 300, and the transmission component 300 is in transmission connection with the transmission shaft 110. Therefore, when the driving motor 210 rotates, the transmission component 300 synchronously drives the transmission shaft 110 to rotate to realize the rotation of the interaction component 100.

[0053] Please refer to the appendix Figure 1 As shown, the intelligent in-vehicle terminal of the present application further includes a housing 400. The housing 400 is divided into an upper housing 410 and a lower housing 420. The upper housing 410 is arranged closer to the interaction component 100 than the lower housing 420, and the lower housing 420 is arranged farther from the interaction component 100 than the upper housing 410. The upper housing 410 and the lower housing 420 are detachably connected. Further, the detachable methods between the upper housing 410 and the lower housing 420 include bolt connection and glue bonding.

[0054] In the present application, the transmission assembly 300 and the circuit board 220 are located between the first housing 410 and the second housing 420. Further, the circuit board 220 and the transmission assembly 300 are arranged vertically between the first housing 410 and the second housing 420. The circuit board 220 is arranged closer to the first housing 410 relative to the transmission assembly 300, and the transmission assembly 300 is arranged closer to the second housing 420 relative to the circuit board 220. The first through hole 411 and the second through hole 412 are provided on the upper housing 400, and the third through hole is provided on the circuit board 220. Further, the circuit board 220 is provided on the transmission path of the drive motor 210, and the circuit board 220 is not provided on the transmission path of the transmission shaft 110. The transmission shaft 110 passes through the first through hole 411 and is in transmission connection with the transmission assembly 300, and the drive motor 210 passes through the second through hole 412 and the third through hole and is fixedly connected to the transmission assembly 300.

[0055] Please refer to the attached Figure 1 As shown, the transmission shaft 110 is connected to the housing 400 through the connection assembly 500, and the connection assembly 500 constitutes the circumferential limit and the axial limit between the transmission shaft 110 and the housing 400.

[0056] In the present application, the connection assembly 500 includes a first connecting member 510. The transmission shaft 110 is connected to the first housing 410 through the first connecting member 510 to enable the transmission shaft 110 to rotate within the first housing 410, and further to realize the circumferential limit of the transmission shaft 110 relative to the first housing 410. After the transmission shaft 110 is in transmission connection with the transmission assembly 300, it further extends downward and is connected to the second housing 420 through a second connecting member 520 to enable the transmission shaft 110 to rotate within the second housing 420, and further to realize the circumferential limit of the transmission shaft 110 relative to the second housing 420.

[0057] Further, the second connecting member 520 is fixedly connected to the transmission shaft 110 through a second fixing member 540, and the transmission assembly 300 is restricted between the second connecting member 520 and the first housing 410 to form the axial limit of the transmission shaft 110 relative to the housing 400.

[0058] Further, the connection assembly 500 further includes an elastic member 530. The elastic member 530 is sleeved outside the transmission shaft 110. The elastic member 530 is located between the second transmission member 320 and the first housing 410. The elastic member 530 abuts against the second transmission member 320 and the first housing 410 respectively to form the compression of the elastic member 530, and the elastic member 530 simultaneously forms the axial acting force on the second transmission member 320 and the first housing 410. The connection manner between the transmission shaft 110, the connection assembly 500 and the housing 400 will be further described in the attached Figure 4 It will be further described below.

[0059] In one embodiment, the first connecting member 510 and the second connecting member 520 include bearings or bushings or rotating sliders.

[0060] Appendix Figure 2 is a schematic structural diagram between the drive assembly and the transmission assembly of the present application. Please refer to Appendix Figure 2 As shown, in the transmission assembly 300 of the present application, it includes a first transmission member 310 and a second transmission member 320. The first transmission member 310 and the second transmission member 320 are in transmission connection. The transmission method between the first transmission member 310 and the second transmission member 320 includes gear transmission or pulley transmission. The first transmission member 310 is in transmission connection with the drive motor 210, and the second transmission member 320 is in transmission connection with the transmission shaft 110, so as to transmit the rotation of the drive motor 210 to the first transmission member 310 and the second transmission member 320 in sequence.

[0061] In the present application, the circuit board 220 is arranged between the transmission assembly 300 and the drive motor 210. A third through hole 221 is provided on the circuit board 220. The third through hole 221 is arranged corresponding to the output shaft of the drive motor 210. The output shaft of the drive motor 210 passes through the third through hole 221 and is fixedly connected to the first transmission member 310.

[0062] In one embodiment, the fixed connection method between the output shaft of the drive motor 210 and the first transmission member 310 is bolt connection or welding connection. Further, a protruding shaft is arranged on one side of the first transmission member 310 facing the drive motor 210. A rotating cavity is arranged inside the protruding shaft. The output shaft of the drive motor 210 is located inside the rotating cavity. A circumferential limit is formed between the output shaft of the drive motor 210 and the rotating cavity. The first end of the first fixing member 230 passes through the first transmission member 310 and is fixedly connected to the output shaft of the drive motor 210.

[0063] In one embodiment, the first fixing member 230 is a bolt.

[0064] In one embodiment, the transmission between the first transmission member 310 and the second transmission member 320 is gear transmission. Teeth are circumferentially arranged on the first transmission member 310, and teeth are arranged on one side of the second transmission member 320 close to the first transmission member 310.

[0065] In one embodiment, the fit between the second transmission member 320 and the transmission shaft is a spline fit. An internal spline for transmission cooperation with the transmission shaft is provided on the second transmission member 320.

[0066] Please refer to Appendix Figure 2As shown in the figure, the in-vehicle intelligent terminal of the present application further includes a sensing component 600. The sensing component 600 includes a first sensing element 610 and a second sensing element 620 which are correspondingly arranged. The first sensing element 610 is arranged on the circuit board 220, and the second sensing element 620 is arranged on the second transmission member 320. The first sensing element 610 and the second sensing element 620 cooperate to detect the rotation angle of the second transmission member relative to the housing. During specific operation, the first sensing element 610 is used to receive the signal from the second sensing element 620, calculate the real-time rotation angle of the second sensing element 620 relative to the first sensing element 610 in real time, and send the real-time rotation angle to the drive motor 210. The drive motor 210 compares the real-time rotation angle with the ideal rotation angle in the drive motor 210 and modifies the real-time rotation angle to improve the rotation accuracy.

[0067] In one embodiment, a limiting groove is provided on the second transmission member 320, and the second sensing element 620 is arranged in the limiting groove.

[0068] In one embodiment, the first sensing element 610 is a sensor, and the second sensing component 600 is a permanent magnet.

[0069] Att Figure 3 is a schematic structural diagram of the transmission shaft 110 of the present application. Please refer to Att Figure 3 As shown in the figure, the transmission shaft 110 of the present application includes a first transmission section 111, a second transmission section 112, and a third transmission section 113. The first transmission section 111, the second transmission section 112, and the third transmission section 113 are connected end to end in sequence. One end of the first transmission section 111 away from the second transmission section 112 is connected to the interaction component, and one end of the third transmission section 113 away from the second transmission section 112. The first transmission section 111 of the transmission shaft 110 is a smooth shaft, and a first connecting member is sleeved outside the first transmission section 111. The first connecting member and the first transmission section 111 are in interference fit. External splines are provided on the outer surface of the second transmission section 112 of the transmission shaft 110, and the second transmission section 112 and the second transmission member are in spline connection. A second connecting member is sleeved outside the third transmission section 113 of the transmission shaft 110, and the second connecting member is fixedly connected to the third transmission section 113 through a second fixing member.

[0070] Att Figure 4 is a partial cross-sectional view of the in-vehicle display terminal of the present application. Please refer to Att Figure 4As shown, in the present application, the first connecting member 510 is a bushing. There is an interference fit between the first connecting member 510 and the transmission shaft 110, and a clearance fit between the first connecting member 510 and the first housing 410. An axle collar 511 is formed on the upper surface of the first connecting member 510. The axle collar 511 abuts against the upper surface of the first housing 410 to limit the downward movement of the transmission shaft 110. Under the action of the first connecting member 510, while further forming a circumferential limit for the interaction component 100, the downward movement of the transmission shaft 110 is further restricted.

[0071] Please refer to the appendix Figure 4 As shown, in the present application, the second connecting member 520 is a rotating slider. The second connecting member 520 is connected to the second end of the transmission shaft 110 in the form of a second fixing member 540. There is a clearance fit between the second connecting member 520 and the second housing 420. The upper surface of the second connecting member 520 abuts against the second transmission member 320, thereby restricting the second transmission member 320 between the first housing 410 and the rotating slider to show the upward movement of the transmission shaft 110.

[0072] Please refer to the appendix Figure 4 As shown, the connecting member assembly further includes an elastic member 530. The elastic member 530 is sleeved outside the transmission shaft 110. The elastic member 530 is located between the second transmission member 320 and the first housing 410. The elastic member 530 abuts against the second transmission member 320 and the first housing 410 respectively to form a compression of the elastic member 530. The elastic member 530 simultaneously forms an axial acting force on the second transmission member 320 and the first housing 410. While the elastic member 530 forms a pre-tightening force on the second transmission member 320 and drives the second transmission member 320 to move downward, but under the action of the first limiting member axle collar 511, the transmission shaft 110 maintains axial stability, but the pre-tightening force always exists. Therefore, the interaction component 100 will always adhere to the first housing 410, thus ensuring the stability of the interaction component 100. At the same time, since the elastic member 530 is arranged between the second transmission member 320 and the first housing 410, the second transmission member 320 will form friction with the elastic member 530 when rotating. Further, when the transmission shaft 110 rotates, the amount of wobbling can be reduced, and the driving motor 210 will generate certain vibrations during the start-stop speed change process, or external vibrations are also easily transmitted to the transmission shaft 110 or the interaction component 100 through the housing 400. The existence of the elastic member 530 can isolate high-frequency vibrations and reduce the damage to the interaction component 100 caused by high-frequency vibrations.

[0073] In the present application, the elastic member 530 gives the second transmission member 320 a torque against the direction of motion. When the rotational force of the driving motor 210 is greater than the torque, the transmission shaft 110 will rotate. When the driving motor 210 stops moving, due to the existence of the torque, the interaction component 100 will quickly stop rotating, thereby avoiding continuous rotation due to inertia force.

[0074] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0075] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0076] As described above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vehicle-mounted intelligent terminal, characterized in that: The vehicle-mounted intelligent terminal comprises: Drive components; An interactive component, the interactive component is connected to the driving component, the interactive component is used to interact with a user, and the interactive component is provided with a transmission shaft along a first direction; A transmission assembly, the transmission assembly includes a first transmission member and a second transmission member in transmission connection, the first transmission member is in transmission connection with the drive assembly, and the second transmission member is in transmission connection with the transmission shaft; wherein, The driving component drives the interactive component to rotate via the transmission component.

2. The vehicle-mounted intelligent terminal according to claim 1, characterized in that: The vehicle-mounted intelligent terminal also includes The transmission assembly is located in the shell, the first end of the transmission shaft is connected to the interactive assembly, the second end of the transmission shaft extends into the shell and is transmission-connected to the second transmission member, and the transmission shaft is connected to the shell through the connecting assembly.

3. The vehicle-mounted intelligent terminal according to claim 2, characterized in that: The driving assembly comprises: A driving motor, wherein the driving motor is fixedly connected to the first transmission member via a first fixing member; A circuit board is electrically connected to the drive motor and is arranged on one side of the transmission assembly.

4. The vehicle-mounted intelligent terminal according to claim 3, characterized in that: The vehicle-mounted intelligent terminal also includes: The sensing component includes a first sensing member and a second sensing member that are correspondingly arranged, the first sensing member is arranged on the circuit board, and the second sensing member is arranged on the second transmission member, and the first sensing member and the second sensing member work together to detect the rotation angle of the second transmission member relative to the shell.

5. The vehicle-mounted intelligent terminal according to claim 2, characterized in that: The transmission shaft is transmission-connected to the second transmission member via a spline.

6. The vehicle-mounted intelligent terminal according to claim 5, characterized in that: The shell is divided into a first shell and a second shell from top to bottom, and the first shell is detachably connected to the second shell.

7. The vehicle-mounted intelligent terminal according to claim 6, characterized in that: The connecting component includes a first connecting member and a second connecting member. The transmission shaft is connected to the first shell through the first connecting member to enable the transmission shaft to rotate in the first shell. The transmission shaft is connected to the second shell through the second connecting member to enable the transmission shaft to rotate in the second shell.

8. The vehicle-mounted intelligent terminal according to claim 7, characterized in that: The first connecting member is a shaft sleeve, the first connecting member and the transmission shaft are in interference connection, the first connecting member and the first housing are in clearance fit, a shaft ring is formed on the upper surface of the first connecting member, the shaft ring abuts against the first housing to limit the downward movement of the transmission shaft; The second connecting member is a rotating slider, which is connected to the second end of the transmission shaft by a fixed connection. The second connecting member and the second shell are clearance-fitted. The upper surface of the second connecting member abuts against the second transmission member, and the second transmission member is restricted between the first shell and the rotating slider to restrict the upward movement of the transmission shaft.

9. The vehicle-mounted intelligent terminal according to claim 8, characterized in that: The connecting assembly also includes an elastic member, which is sleeved outside the transmission shaft and located between the second transmission member and the first shell. The elastic member is respectively against the second transmission member and the first shell to form compression of the elastic member. The elastic member also forms an axial force on the second transmission member and the first shell.

10. A vehicle, characterized in that: An in-vehicle intelligent terminal as described in any one of claims 1 to 9 is installed inside the cockpit of the vehicle.

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