CN212084130U - USB signal transmission system and touch display equipment - Google Patents
USB signal transmission system and touch display equipment Download PDFInfo
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- CN212084130U CN212084130U CN202020474147.5U CN202020474147U CN212084130U CN 212084130 U CN212084130 U CN 212084130U CN 202020474147 U CN202020474147 U CN 202020474147U CN 212084130 U CN212084130 U CN 212084130U
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Abstract
The application is applicable to the technical field of computers, and provides a USB signal transmission system which comprises a USB concentrator, a USB switching module, a first system module and a second system module, wherein the USB switching module is respectively connected with the USB concentrator, the first system module and the second system module, the USB concentrator is used for connecting a touch control module and at least one USB signal device, the USB switching module can enable the USB signal device and the touch control module to be respectively connected with the first system module or the second system module according to instructions, when the USB signal transmission system is connected with the external computing equipment, the touch module and the USB signal equipment on the USB signal transmission system can transmit signals to the external computing equipment through the USB concentrator, and the problem that when the external computing equipment cannot use the USB signal equipment on the USB signal transmission system, extra external equipment needs to be connected manually, and therefore the use cost is increased is solved.
Description
Technical Field
The application belongs to the technical field of computers, and particularly relates to a USB signal transmission system and a touch display device.
Background
Nowadays, touch display devices are widely applied to the fields of teaching, office, meeting and the like, and the touch display devices can realize the functions of teaching, office, meeting and the like through built-in or external hardware devices carrying operating systems and related software.
In order to realize functions of teaching, office, meeting and the like, the touch display device can be connected with an external computing device. In a conventional scheme, a USB signal transmission system can only send a touch signal to an external computing device, but cannot send a USB signal of a USB signal device, such as a USB signal of a camera or a sound device, to the external computing device. Therefore, when the external computing device needs to use a camera or a sound, the USB signal device on the USB signal transmission system cannot be used, and an additional external device needs to be manually connected, thereby increasing the use cost.
SUMMERY OF THE UTILITY MODEL
In view of this, an embodiment of the present application provides a USB signal transmission system, which can solve the problem that an external computing device cannot use a USB signal device on a touch display device.
The embodiment of the application provides a USB signal transmission system, which comprises a USB hub, a USB switching module, a first system module and a second system module;
the USB switching module is respectively connected with the USB hub, the first system module and the second system module;
the USB hub is used for connecting the touch module and at least one USB signal device;
the USB switching module is used for:
when a first switching instruction sent by the first system module is received, connecting a connecting link between the touch module and the first system module and connecting a connecting link between the at least one USB signal device and the first system module;
and when a second switching instruction sent by the second system module is received, connecting a connection link between the touch module and the second system module and connecting a connection link between the at least one USB signal device and the second system module.
In one embodiment, the USB signal transmission system further includes a USB peripheral interface, and the USB peripheral interface is connected to the USB switching module and the external computing device respectively;
the USB switching module is further configured to, when receiving a third switching instruction sent by the external computing device, connect a connection link between the touch module and the external computing device and connect a connection link between the at least one USB signal device and the external computing device.
The embodiment of the application provides a USB signal transmission system, wherein a USB concentrator, a first system module and a second system module are connected with a USB switching module, the USB concentrator is used for connecting a touch module and at least one USB signal device, and when a first switching instruction sent by the first system module is received, the touch module is connected with the first system module and the at least one USB signal device is connected with and communicated with the first system module; when a second switching instruction sent by the second system module is received, the connection between the touch module and the second system module and the connection between the at least one USB signal device and the second system module are switched on, when the USB signal transmission system is connected with the external computing device, the touch module and the USB signal device on the USB signal transmission system can transmit signals to the external computing device through the USB hub, and the problem that when the external computing device cannot use the USB signal device on the USB signal transmission system, extra external devices need to be manually connected, and therefore the use cost is increased is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a USB signal transmission system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another USB signal transmission system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a USB signal transmission system according to a second embodiment of the present application;
fig. 4 is a schematic structural diagram of a USB signal transmission system according to a third embodiment of the present application;
fig. 5 is a schematic structural diagram of a USB signal transmission system according to a fourth embodiment of the present application;
fig. 6 is a schematic structural diagram of a USB signal transmission system according to a fifth embodiment of the present application;
fig. 7 is a schematic structural diagram of a touch display device according to a sixth embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It is to be noted that the term "comprises" and any variants thereof in the description and claims of this application are intended to cover non-exclusive inclusions. For example, a system, product or apparatus that comprises a list of elements is not limited to those elements listed, but may alternatively include other elements not listed or inherent to such product or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.
Example one
The embodiment of the application provides a USB signal transmission system, which can be applied to terminal equipment, such as a tablet personal computer, a teaching all-in-one machine, a television, an electronic whiteboard or an infrared large screen. In this embodiment, the application of the USB signal transmission system to the touch display device is taken as an example. The touch display device may include an infrared touch screen, a capacitive screen, or an electromagnetic induction screen.
To specifically describe the USB signal transmission system, the following description is made in detail with reference to specific embodiments:
fig. 1 shows a USB signal transmission system according to a first embodiment of the present invention, and for convenience of description, only the relevant parts to this embodiment are shown.
Referring to fig. 1, the USB signal transmission system provided in the embodiment of the present application may be used to connect with an external computing device, and the USB signal transmission system includes a USB hub 10, a USB switching module 11, a first system module 12, and a second system module 13.
The USB switching module 11 is connected to the USB hub 10, the first system module 12, and the second system module 13 respectively.
In applications, the USB hub 10 may comprise a USB2.0 hub or a USB3.0 hub. A VL817 chip may be included in this embodiment.
In application, the USB switching module 11 may include a USB switching chip, and the USB switching chip may be a USB2.0 switching chip or a USB3.0 switching chip. The USB switching chip may be an alternative USB switching chip, a three-alternative USB switching chip, or a four-alternative USB switching chip, and in this embodiment, the USB switching module 11 is an alternative USB switching chip.
In one embodiment, the first system module 12 may be an OPS module, and the second system module 13 is an android system motherboard.
In application, the OPS module may be an Open plug capable Specification (OPS) computer. The OPS module can comprise an Intel core processor, a memory, a hard disk and various input/output interfaces, and the plug-in computer can run a Windows operating interface.
In application, the android system motherboard can be a Central Processing Unit (CPU), and the android system can run on the android motherboard.
The USB hub 10 is used to connect the touch module 20 and at least one USB signal device 14. It is understood that the USB signal device does not include the touch module 20.
In one embodiment, as shown in FIG. 2, the USB signaling device 14 may include a touch module 20 connected to the USB hub 10.
In an application, the touch module 20 may include a touch screen, such as an infrared touch screen, a capacitive screen, or an electromagnetic induction screen, and the touch module 20 may collect touch information, such as a sliding motion or a gesture of a user on the touch screen. The touch information collected by the touch module 20 may be transmitted in a USB manner.
In one embodiment, the USB signal device 14 may include a network module 21, a camera module 22, an audio module 23, and a USB interface module 24 connected to the USB hub 10, wherein the USB interface module 24 is used to connect to an external USB signal device 14.
In an application, the network module 21 may include a USB network card. The network unit may be configured to receive network signals of a wired network, a wireless network, a 3G network, a 4G network, and/or a 5G network. The network unit comprises a USB peripheral interface 41, and the network acquired by the network unit can be transmitted in a USB manner.
In application, the camera module 22 may include a lens and a USB camera chip, the USB camera chip may acquire image information acquired by the lens, and the image information acquired by the camera chip may be transmitted in a USB manner.
In application, the audio module 23 may include a USB audio chip, where the USB audio chip may include a first audio information acquired by the microphone, and may also play the acquired second audio information through a device such as a sound device and an earphone, and the audio chip may transmit the first audio information and the second audio information in a USB manner.
In the application, the USB interface module 24 may be a Type-a USB peripheral interface, a Type-B USB peripheral interface and/or a Type-C USB peripheral interface, and the USB peripheral interface may be used to connect other external USB signal devices that input and output signals through USB, for example, storage devices such as a USB disk.
The USB switching module 11 is configured to: when receiving a first switching instruction sent by the first system module 12, connecting a connection link between the touch module 20 and the first system module 12 and connecting a connection link between the at least one USB signal device 14 and the first system module 12; when receiving a second switching instruction sent by the second system module 13, the connection link between the touch module 20 and the second system module 13 is connected, and the connection link between the at least one USB signal device 14 and the second system module 13 is connected.
In application, the USB switching module 11 may enable the touch module 20 and the at least one USB signal device 14 to communicate with the first system module 12 or the second system module 13, respectively, and the USB switching module 11 may transmit the USB signal of the USB signal device 14 and the touch signal of the touch module 20 to the first system module 12 or the second system module 13, for example, the USB switching module 11 employs a one-out-of-four USB switching chip in this embodiment. Alternatively, the USB switching module 11 may connect all USB signal devices 14 to the first system module 12 or the second system module 13.
In an application, if the touch display device displays an OPS system mounted on the OPS module, the OPS module may send a first switching instruction to the USB switching module 11. If the touch display device displays the android system carried by the android system mainboard, the android system mainboard can send a second switching instruction to the USB switching module 11.
In this embodiment, the first system module and the second system module are respectively connected to the USB switching module, the USB hub is used to connect the touch module and at least one USB signal device, and the USB switching module can enable the USB signal device and the touch module to be respectively connected to the first system module or the second system module according to the instruction. In addition, two USB switching modules are generally required to be used in the conventional USB signal transmission system, and the USB signal transmission system of this embodiment only needs to use one USB switching module, which can simplify the USB signal transmission system.
Example two
As shown in fig. 3, the USB switching module 11 includes a first USB switching chip 31 and a second USB switching chip 32. The first USB switching chip 31 is connected to the touch module 20, the at least one USB signal device 14, and the first system module 12, and the second USB switching chip 32 is connected to the at least one USB signal device 14 and the second system module 13.
In application, the first system module 12 may be an OPS module, and the second system module 13 is an android system motherboard.
In application, the first USB switching chip 31 may be connected to at least one USB signaling device 14 via the USB hub 10, and the second USB switching chip 32 may be connected to at least one USB signaling device 14 via the USB hub 10.
In an application, when the touch display device displays an OPS system mounted on the OPS module, the OPS module may send a first switching instruction to the first USB switching chip 31. The first USB switching chip 31 may make a connection between the at least one USB signaling device 14 and the OPS module. If the first USB switching chip 31 does not receive the first switching command, the USB signaling device 14 and the OPS module may be disconnected.
In application, if the touch display device displays an android system carried by the android system mainboard, the android system mainboard can send a second switching instruction to the second USB switching chip 32. The second USB switching chip 32 can enable the touch module 20 and the at least one USB signal device 14 to be connected to the main board of the android system, respectively. If the second USB switching chip 32 does not receive the second switching instruction, the connection link between the USB signaling device 14 and the OPS module may be disconnected, and the connection link between the touch module 20 and the OPS module may be disconnected.
The embodiment of the application provides a USB signal transmission system, a USB hub, a first system module and a second system module are connected with a USB switching module, the USB hub is used for connecting a touch module and at least one USB signal device, the USB switching module can comprise a first USB switching chip and a second USB switching chip, the first USB switching chip can enable the USB signal device and the touch module to be respectively connected with the first system module according to a first instruction according to the USB switching module, the second USB switching chip can enable the USB signal device and the touch module to be respectively connected with the second system module according to a second switching instruction, and compared with an external USB signal transmission system, the USB signal transmission system of the embodiment can transmit USB signals on the USB signal device to a computer device.
EXAMPLE III
As shown in fig. 3, the USB signal transmission system further includes a USB peripheral interface 41, wherein the USB peripheral interface 41 is connected to the USB switching module 11 and is used for connecting an external computing device 43.
In one embodiment, the USB signal transmission system further comprises a multimedia signal interface 42, wherein the multimedia signal interface 42 is connected to the second system module 13 and is used for connecting an external computing device 43.
In application, the external computing device 43 may be a computer device such as an external computing device and a notebook computer. The external computing device 43 may run software such as instructional software.
In application, the USB peripheral interface may be a Type-a USB peripheral interface, a Type-B USB peripheral interface, or a Type-C USB peripheral interface, in this embodiment, the USB peripheral interface 41 is a Type-B USB peripheral interface 41 as an example, one end of the USB peripheral interface 41 of this embodiment is used to connect the USB switching module 11, and the other end of the USB peripheral interface 41 may be used to connect the external computing device 43.
In application, the Multimedia Interface may be a Video Graphics Array (VGA) Interface, a High Definition Multimedia Interface (HDMI) Interface, a High Definition Digital (DP) Interface, a type-C USB peripheral Interface, and a Digital Video Interface (DVI) Interface, and in this embodiment, the Multimedia Interface is a High Definition Multimedia Interface, for example.
In one embodiment, the USB switching module 11 is further configured to, when receiving a third switching instruction sent by the external computing device 43, switch on the connection between the touch module 20 and the external computing device 43 and switch on the connection between the at least one USB signal device 14 and the external computing device 43.
In application, if the touch display device displays the external computer system mounted on the external computing device 43, the external computing device 43 may send a third switching instruction to the USB switching module 11.
In application, after receiving the third switching instruction, the USB may connect all the USB signaling devices 14 and the external computing device 43, and if the USB switching module 11 does not receive the second switching instruction, the connection link between the USB signaling device 14 and the external computing system may be disconnected.
The embodiment of the application provides a USB signal transmission system, wherein a USB concentrator, a first system module and a second system module are connected with a USB switching module, the USB concentrator is used for connecting one USB signal device such as a touch module, a network module, a camera module and an audio module, the USB switching module can comprise a first USB switching chip and a second USB switching chip, the first USB switching chip can switch on a connection link between the USB signal device and the first system module according to a first switching instruction, the first USB switching chip can switch on a connection link between the USB signal device and the second system module according to a second switching instruction, the second USB switching chip can enable the touch module and the USB signal device to be respectively connected with an external computing device according to a third switching instruction, compared with the traditional USB signal transmission system in which the external computing device can only obtain a touch signal sent by the touch module, when the external computing device needs to use a camera or a sound box, an additional external device needs to be manually connected, in this embodiment, the external computing device can further acquire USB signals of the network module, the camera module, the audio module and the like, the external computing device can use the USB signal modules of the network module, the camera module, the audio module and the like in the USB signal transmission system, and the problem that the external computing device needs to be separately connected with the external device to increase the use cost can be solved.
Example four
As shown in fig. 5, the USB switching module 11 includes a first USB switching chip 31 and a second USB switching chip 32, the first USB switching chip 31 is connected to the at least one USB signal device 14, the first system module 12 and the second system module 13, and the second USB switching chip 32 is connected to the at least one USB signal device 14 and the external computing device 43.
In this embodiment, the first USB switching chip 31 and the second USB switching chip 32 may both adopt PI3USB3102ZLEX chips.
In application, the USB hub 10 is connected to the first USB switch chip 31, the USB hub 10 is connected to the second USB switch chip 32, and the USB hub 10 is used to connect the touch module 20 and at least one USB signal device 14, such as the touch module 20, the network module 21, the camera module 22, the audio module 23, and the USB interface module 24.
In application, the USB hub 10 may be connected to the TX interface, the TX + interface, the RX interface and the RX + interface of the first USB switch chip 31, and the USB hub 10 may be connected to the TX interface, the TX + interface, the RX interface and the RX + interface of the second switch chip.
In application, the OPS module may be connected to a TX-a interface, a TX + a interface, an RX-a interface, and an RX + a interface of the first USB switching chip 31, and the android system motherboard may be connected to a TX-B interface, a TX + B interface, an RX-B interface, and an RX + B interface of the first USB switching chip 31. The external computing device 43 may be connected to the TX-A interface, the TX + A interface, the RX-A interface, and the RX + A interface of the second USB switch chip 32.
In application, the SS _ SEL interface and the HS _ SEL interface of the first USB switch chip 31 may be used to receive a first switch instruction and a second switch instruction.
In application, the SS _ SEL interface and the HS _ SEL interface of the second USB switching chip 32 may be used to receive the second switching instruction and the third switching instruction.
In application, the OPS module may control the first USB switching chip 31 to connect the OPS module and the at least one USB signaling device 14 by sending a first switching instruction to the first USB switching chip 31. The android system motherboard can control the first USB switching chip 31 to connect the android system motherboard and the at least one USB signal device 14 by sending a second switching instruction to the first USB switching chip 31. The external computing device 43 may control the second USB switching chip 32 to connect the external computing device 43 and the at least one USB signaling device 14 by sending a third switching instruction to the second USB switching chip 32.
EXAMPLE five
As shown in fig. 5, the USB switching module 11 includes a first USB switching chip 31 and a second USB switching chip 32, the first USB switching chip 31 is connected to the at least one USB signal device 14, the first system module 12 and the external computing device 43, and the second USB switching chip 32 is connected to the at least one USB signal device 14 and the second system module 13.
In this embodiment, the first USB switching chip 31 and the second USB switching chip 32 may both adopt PI3USB3102ZLEX chips.
In application, the USB hub 10 is connected to the first USB switch chip 31, the USB hub 10 is connected to the second USB switch chip 32, and the USB hub 10 is used to connect the touch module 20 and at least one USB signal device 14, such as the touch module 20, the network module 21, the camera module 22, the audio module 23, and the USB interface module 24.
In application, the USB hub 10 may be connected to the TX interface, the TX + interface, the RX interface and the RX + interface of the first USB switch chip 31, and the USB hub 10 may be connected to the TX interface, the TX + interface, the RX interface and the RX + interface of the second switch chip.
In application, the OPS module may be connected to the TX-a interface, the TX + a interface, the RX-a interface and the RX + a interface of the first USB switching chip 31, and the external computing device 43 may be connected to the TX-B interface, the TX + B interface, the RX-B interface and the RX + B interface of the first USB switching chip 31. The android system motherboard can be connected with the TX-a interface, the TX + a interface, the RX-a interface, and the RX + a interface of the second USB switching chip 32.
In application, the SS _ SEL interface and the HS _ SEL interface of the first USB switch chip 31 may be used to receive the first switch instruction and the third switch instruction.
In application, the SS _ SEL interface and the HS _ SEL interface of the second USB switching chip 32 may be used to receive a second switching instruction.
In application, the OPS module may control the first USB switching chip 31 to connect the OPS module and the at least one USB signaling device 14 by sending a first switching instruction to the first USB switching chip 31. The external computing device 43 may control the first USB switching chip 31 to connect the external computing device 43 and the at least one USB signaling device 14, respectively, by sending a third switching instruction to the first USB switching chip 31. The android system motherboard can send a second switching instruction to the second USB switching chip 32, and control the second USB switching chip 32 to connect the android system motherboard and the at least one USB signal device 14, respectively.
EXAMPLE six
The present embodiment provides a touch display device, as shown in fig. 7, where the touch display device 7 includes a touch screen, such as an infrared touch screen, a capacitive screen, or an electromagnetic induction screen. The touch screen may include a touch module 20, and the touch module 20 may collect touch information, such as a slide or a gesture of a user on the touch screen. The touch information collected by the touch module 20 may be transmitted in a USB manner.
In application, the touch display device 7 includes a USB hub 10, a USB switching module 11, a first system module 12, a second system module 13, a USB peripheral interface 41, and a multimedia signal interface 42. The USB hub 10, the first system module 12, and the second system module 13 are connected to the USB switching module 11, the USB hub 10 is used to connect the touch module 20 and at least one USB signal device 14, the USB peripheral interface 41 is connected to the USB switching module 11, and the multimedia signal interface 42 is connected to the second system module 13. The USB hub 10 is used to connect USB signal devices 14 such as a touch module 20, a network module 21, a camera module 22, an audio module 23, and a USB interface module 24. The USB peripheral interface 41 and the multimedia signal interface 42 may be used to connect to an external computing device 43.
The USB switching module 11 is configured to, when receiving a first switching instruction sent by the first system module 12, switch on a connection between the at least one USB signaling device 14 and the first system module 12; when receiving a second switching instruction sent by the second system module 13, the connection between the at least one USB signal device 14 and the second system module 13 is switched on.
In application, the first system module 12 is an OPS module, and the second system module 13 is an android system motherboard.
In application, the USB switching module 11 may connect a connection link between at least one USB signal device 14 and the first system module 12 or the second system module 13, and the USB switching module 11 may transmit a USB signal of the USB signal device 14 to the first system module 12 or the second system module 13, for example, the USB switching module 11 adopts a one-out-of-four USB switching chip in this embodiment. Alternatively, the USB switching module 11 may connect all USB signal devices 14 to the first system module 12 or the second system module 13.
In an application, if the touch display device 7 displays an OPS system mounted on the OPS module, the OPS module may send a first switching instruction to the USB switching module 11. If the touch display device 7 displays the android system carried by the android system mainboard, the android system mainboard can send a second switching instruction to the USB switching module 11.
The USB switching module 11 is further configured to, when receiving a third switching instruction sent by the external computing device 43, switch on the connection between the at least one USB signal device 14 and the external computing device 43.
In application, if the touch display device 7 displays the external computer system mounted on the external computing device 43, the external computing device 43 may send a third switching instruction to the USB switching module 11.
In application, the USB may switch on all the USB signaling devices 14 and the external computing device 43 after receiving the third switching instruction, and if the USB switching module 11 does not receive the second switching instruction, the USB signaling devices 14 and the external computing device may be switched off.
Compared with the prior art, the USB signal transmission system in the embodiment can save one USB switching chip, if the touch display device is connected with the external computing device, the external computing device can acquire USB signals of the network module, the camera module, the audio module and the like, the external computing device can use the USB signal modules of the network module, the camera module, the audio module and the like in the USB signal transmission system, the problem that the use cost is increased due to the fact that the external computing device needs to be connected with the external device independently can be solved, and the manufacturing cost of the touch display device can be reduced.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A USB signal transmission system is used for being connected with external computing equipment and is characterized by comprising a USB hub, a USB switching module, a first system module and a second system module;
the USB switching module is respectively connected with the USB hub, the first system module and the second system module;
the USB hub is used for connecting the touch module and at least one USB signal device;
the USB switching module is used for:
when a first switching instruction sent by the first system module is received, connecting a connecting link between the touch module and the first system module and connecting a connecting link between the at least one USB signal device and the first system module;
and when a second switching instruction sent by the second system module is received, connecting a connection link between the touch module and the second system module and connecting a connection link between the at least one USB signal device and the second system module.
2. The USB signal transmission system according to claim 1, wherein the at least one USB signal device includes a network module, a camera module, an audio module, and a USB interface module connected to the USB hub, wherein the USB interface module is used to connect an external USB signal device.
3. The USB signal transmission system according to claim 1, wherein the USB signal transmission system further comprises a USB peripheral interface, and the USB peripheral interface is connected to the USB switching module and the external computing device, respectively.
4. The USB signal transmission system according to claim 3, wherein the USB switching module is further configured to connect the connection link between the touch module and the external computing device and connect the connection link between the at least one USB signal device and the external computing device when receiving a third switching instruction sent by the external computing device.
5. The USB signal transmission system according to claim 1, wherein the USB switching module further comprises a multimedia signal interface, and the multimedia signal interface is connected to the second system module and the external computing device, respectively.
6. The USB signal transmission system according to claim 1, wherein the first system module is an OPS module, and the second system module is an android system motherboard.
7. The USB signal transmission system according to any one of claims 1 to 6, wherein the USB switching module comprises a first USB switching chip and a second USB switching chip;
the first USB switching chip is respectively connected with the touch module, the at least one USB signal device and the first system module, and the second USB switching chip is respectively connected with the touch module, the at least one USB signal device and the second system module.
8. The USB signal transmission system according to any one of claims 3 to 5, wherein the USB switching module comprises a first USB switching chip and a second USB switching chip;
the first USB switching chip is respectively connected with the at least one USB signal device, the first system module and the second system module, and the second USB switching chip is respectively connected with the touch module, the at least one USB signal device and the external computing device.
9. The USB signal transmission system according to claim 8, wherein the first USB switching chip and the second USB switching chip are both PI3USB3102ZLEX chips.
10. A touch display device comprising the USB signal transmission system according to any one of claims 1 to 9.
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| CN113064515A (en) * | 2021-03-19 | 2021-07-02 | 海信视像科技股份有限公司 | Touch display device and USB device switching method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113064515A (en) * | 2021-03-19 | 2021-07-02 | 海信视像科技股份有限公司 | Touch display device and USB device switching method |
| CN113064515B (en) * | 2021-03-19 | 2023-02-17 | 海信视像科技股份有限公司 | Touch display device and USB device switching method |
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