CN210627185U - Signal transmission circuit and interactive intelligent panel - Google Patents
Signal transmission circuit and interactive intelligent panel Download PDFInfo
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- CN210627185U CN210627185U CN201921608983.1U CN201921608983U CN210627185U CN 210627185 U CN210627185 U CN 210627185U CN 201921608983 U CN201921608983 U CN 201921608983U CN 210627185 U CN210627185 U CN 210627185U
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Abstract
The utility model relates to a signal transmission circuit and mutual intelligence are dull and stereotyped. The signal transmission circuit of the utility model comprises a first change-over switch, a second change-over switch and a system main chip; the system main chip comprises first to fourth communication interfaces; the first change-over switch comprises a first fixed end, a first change-over end, a second change-over end, a first driving end and a first enabling end, and the second change-over switch comprises a second fixed end, a third change-over end, a fourth change-over end, a second driving end and a second enabling end; the first fixed end and the second fixed end respectively receive a signal source of the peripheral of the electronic equipment; the first enabling end is connected with the third communication interface, the second enabling end is connected with the fourth communication interface, the first driving end is connected with the first communication interface, and the second driving end is connected with the second communication interface. The utility model discloses a signal transmission circuit has realized in the convenient output of signal source to the computer module who corresponds of peripheral hardware.
Description
Technical Field
The utility model relates to a dull and stereotyped field of intelligence especially relates to a signal transmission circuit and mutual intelligence are dull and stereotyped.
Background
The interactive intelligent flat panel is a conference machine, integrates a computer, a projector, an electronic whiteboard, a television, an advertising machine and a sound box, has the functions of writing, commenting, synchronous interaction, multimedia, remote video conference and the like, integrates multiple technologies of high-definition display, man-machine interaction, multimedia information processing, network transmission and the like, and is commonly used in places such as government and enterprise conference rooms, media studio, education and training institutions and the like.
In products such as the mutual intelligence is dull and stereotyped, owing to there are a plurality of signal channel, like built-in PC passageway, tall and erect passageway of ann, external PC passageway etc to can make the dull and stereotyped different operating system of operation of mutual intelligence, when the dull and stereotyped different operating system of operation of mutual intelligence, the signal source of the dull and stereotyped peripheral hardware of mutual intelligence need switch through the switching circuit and send to different operating system, but current switching circuit structure is complicated.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model provides a signal transmission circuit and mutual intelligence are dull and stereotyped, and it has realized comparing in prior art, and circuit structure is simpler with the convenient output of signal source of electronic equipment peripheral hardware to the computer module that corresponds.
In a first aspect, the present invention provides a signal transmission circuit applied to an electronic device, including:
the system comprises a first selector switch, a second selector switch and a system main chip;
the system main chip comprises a first communication interface and a second communication interface which are used for outputting driving signals respectively, and a third communication interface and a fourth communication interface which are used for outputting enabling signals respectively;
the first change-over switch comprises a first fixed end, a first change-over end, a second change-over end, a first driving end and a first enabling end, the second change-over switch comprises a second fixed end, a third change-over end, a fourth change-over end, a second driving end and a second enabling end, and the first fixed end is connected with the second fixed end;
the first fixed end and the second fixed end are connected with the peripheral of the electronic equipment and are used for respectively receiving a signal source of the peripheral of the electronic equipment; each of the first to fourth switching terminals is used for connecting a signal source input end of a corresponding computer module;
the first enabling end is connected with the third communication interface, the second enabling end is connected with the fourth communication interface, the first driving end is connected with the first communication interface, and the second driving end is connected with the second communication interface.
Optionally, the first enabling end is configured to receive a first enabling signal output by the third communication interface to control whether the first switch operates, and the second enabling end is configured to receive a second enabling signal output by the fourth communication interface to control whether the second switch operates;
the first driving end is used for controlling the connection relation between the first fixed end and the first switching end and between the first fixed end and the second switching end according to a first driving signal output by the first communication interface when the first switching switch works; the second driving end is used for controlling the connection relation between the second fixed end and the third switching end and the fourth switching end according to a second driving signal output by the second communication interface when the second change-over switch works.
Alternatively to this, the first and second parts may,
the first change-over switch is arranged on the top layer of the PCB, and the second change-over switch is arranged on the bottom layer of the PCB, or the first change-over switch is arranged on the bottom layer of the PCB, and the second change-over switch is arranged on the top layer of the PCB;
the input pins of the first fixing end and the second fixing end are connected through the same via hole in the PCB.
Optionally, the system further comprises a switch chip;
the switch chip is connected with the first fixed end, the second fixed end and the peripheral of the electronic equipment respectively.
Optionally, the first fixed end and the second fixed end are connected to at least one of the following peripherals of the electronic device:
touch frame, mouse, keyboard, camera, microphone.
Optionally, the computer module is configured to operate an android system or a windows system.
In a second aspect, the present invention provides an interactive intelligent panel, comprising an external device, an internal computer module, an external computer module connection port and a signal transmission circuit according to the first aspect of the present invention;
the output port of the peripheral is connected with the first fixed end and the second fixed end, and each of the first to fourth switching ends is connected with a signal source input end of a corresponding internal computer module or an external computer module connecting port.
Optionally, the peripheral device includes at least one of:
touch frame, mouse, keyboard, camera, microphone.
Optionally, the external computer module connection port is a Type-B interface.
Optionally, the built-in computer module includes a PC module and/or an android module.
The embodiment of the utility model provides an in signal transmission circuit and mutual intelligence are dull and stereotyped, through the control of system owner chip to two all two switches, realized the convenient output of signal source to the computer module who corresponds of mutual intelligent dull and stereotyped peripheral hardware, compare in prior art, circuit structure is simpler.
For better understanding and implementation, the technical solutions of the present invention are described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a signal transmission circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal transmission circuit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an interactive intelligent tablet in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present invention are shown in the drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In the following, several specific embodiments are given for describing the technical solution of the present application in detail. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 1 is the utility model discloses an embodiment signal transmission circuit's schematic structure diagram, the utility model discloses in the embodiment signal transmission circuit can be applied to electronic equipment such as TV, computer, mutual intelligent flat board, the following uses mutual intelligent flat board to exemplify.
As shown in fig. 1, the signal transmission circuit in the present embodiment includes a first changeover switch 10, a second changeover switch 20, and a system main chip 30.
The system main chip 30 is used as a main control chip in an interactive intelligent tablet, and generally integrates an analog decoder, a digital decoder, a demodulator, a central processing unit and an image processing unit, and may have rich peripheral interfaces. The system main chip 30 may be connected to different operating systems through a channel switch, and may decode audio/video signals transmitted by the different operating systems and transmit the decoded audio/video signals to a screen and a speaker for audio/video playing.
The system main chip 30 in this embodiment further includes a first communication interface 31 for outputting the first driving signal and a second communication interface 32 for outputting the second driving signal, respectively, and a third communication interface 33 for outputting the first enable signal and a fourth communication interface 34 for outputting the second enable signal, respectively. The driving signal and the enabling signal may be issued by the central processing unit of the system main chip 30 when receiving a channel switching instruction from a user.
The first switch 10 and the second switch 20 are two-way selector switches. In some examples, the two-way selection switch may be a single pole double throw USB switch, which may be, for example, a model number SGM 7227. The selection switch comprises a fixed end, two switching ends, a driving end and an enabling end, wherein the enabling end is used for receiving an external signal and determining whether the selection switch is in a working state or a non-working state. When the selection switch is in a non-working state, the fixed end and the two switching ends are not communicated; when the selection switch is in a working state, the driving end receives an external signal and controls the communication relation between the fixed end and the two switching ends according to the external signal.
Specifically, the first switch 10 includes a first fixed end 11, a first switching end 12, a second switching end 13, a first driving end 14 and a first enabling end 15, the second switch 20 includes a second fixed end 21, a third switching end 22, a fourth switching end 23, a second driving end 24 and a second enabling end 25, and the first fixed end 11 is connected to the second fixed end 21.
The first fixed end 11 and the second fixed end 21 are connected with the peripheral of the interactive intelligent panel and are used for respectively receiving signal sources of the peripheral of the interactive intelligent panel; and in the first to fourth switching ends, each switching end is used for connecting a signal source input end of a corresponding computer module. The computer module can be a computer module arranged in the interactive intelligent tablet or an external computer device connected with the interactive intelligent tablet through an interface, and the computer module can be used for operating an android system or a windows system.
The first enable terminal 15 is connected to the third communication interface 33, the second enable terminal 25 is connected to the fourth communication interface 35, the first enable terminal 15 is configured to receive a first enable signal output by the third communication interface 33 to control whether the first switch 10 operates, and the second enable terminal 25 is configured to receive a second enable signal output by the fourth communication interface 34 to control whether the second switch 20 operates;
the first driving end 14 is connected to the first communication interface 31, the second driving end 24 is connected to the second communication interface 32, and the first driving end 14 is configured to control a connection relationship between the first fixing end 11 and the first and second switching ends 12 and 13 according to a first driving signal output by the first communication interface 31 when the first switch 10 operates; the second driving end 24 is configured to control a connection relationship between the second fixing end 21 and the third and fourth switching ends 22 and 23 according to a second driving signal output by the second communication interface 32 when the second switch 20 operates.
In an exemplary embodiment, as shown in fig. 2, when the signal source is from a plurality of different peripherals, the signal transmission circuit in the embodiment of the present invention may further include a switch chip 40, where the switch chip 40 is respectively connected to the first fixed end 11, the second fixed end 21 and the peripheral of the interactive smart tablet, for receiving a plurality of signal sources of the interactive smart tablet, and sending the plurality of signal sources of the interactive smart tablet to the first fixed end 11 and the second fixed end 21.
In some examples, the switch chip may be a USB hub, and the peripherals of the interactive smart tablet may include one or more of a touch-box, a mouse, a keyboard, a camera, and a microphone.
For reducing the occupied space of two change over switches to and reduce the signal attenuation that the length of PCB board wiring line tail brought, in an exemplary embodiment, first change over switch with the second change over switch is installed in the top layer and the bottom of same PCB board, just first stiff end 11 with the input pin of second stiff end 21 overlaps, first stiff end 11 with the input pin of second stiff end 21 passes through the same via connection of this PCB board to can connect two input pins through the welding, the PCB wiring line tail of every change over switch has been reduced to the at utmost, has reduced the attenuation of mutual intelligent flat signal source signal.
Fig. 3 is the structure diagram of the mutual intelligence flat board in an embodiment of the present invention, as shown in fig. 3, the mutual intelligence flat board in an embodiment of the present invention includes peripheral equipment, built-in computer module, external computer module connection port and the signal transmission circuit in any of the above-mentioned embodiments, the peripheral equipment includes at least one of the following: a touch frame 51, a mouse 52, a keyboard 53, a camera 54 and a microphone 55. The peripheral is used for generating signal sources such as touch signals, mouse signals, keyboard signals, video signals collected by a camera, voice signals collected by a microphone and the like.
The output of above-mentioned peripheral hardware respectively with first stiff end 11 and second stiff end 12 are connected when signal transmission circuit includes switch chip 40, the output of above-mentioned peripheral hardware respectively with switch chip 40 connects to through switch chip 40 with first stiff end 11 and second stiff end 12 are connected.
In one example, the external computer module connection port of the interactive smart tablet is a Type-B interface, and the Type-B interface is used for connecting an external computer module.
In the first switch end 12, the second switch end 13, the third switch end 22 and the fourth switch end 23, each switch end is connected to a signal source input end of a corresponding built-in computer module or a Type-B interface. The external computer module sends the audio/video signal to the system main chip 30 through the HDMI interface, so that the system main chip 30 decodes the audio/video signal and transmits the decoded audio/video signal to the screen and the speaker for audio/video playing. The Type-B interface is used as a signal source input end of the external computer module and used for sending a signal source of the interactive intelligent tablet peripheral to the external computer module.
Specifically, in a specific example, as shown in fig. 3, the interactive smart tablet includes two built-in computer modules, which are a PC module 61 and an android module 62, respectively, where the PC module 61 is connected to the first switch end 12, and the android module 62 is connected to the second switch end 13. The PC module is used for running a windows operating system, and the android module is used for running an android operating system.
In fig. 3, the interactive smart tablet further comprises two Type-B interfaces, namely a Type-B interface 63 and a Type-B interface 64, the two Type-B interfaces are respectively connected with the third switching end 22 and the fourth switching end 23, the two Type-B interfaces are used for respectively connecting an external computer module, and the external computer module can be a PC module or an android module.
In other examples, the number of the built-in computer modules and the Type-B interfaces may be other numbers, and the total number is not more than 4, for example, one built-in android module, three Type-B interfaces, and the like may also be provided, and the connection relationship between the built-in computer modules and the Type-B interfaces and the output ends of the first switch and the second switch may also be arbitrary as long as each output end is connected to a signal source input end or a Type-B interface of a corresponding built-in computer module.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. A signal transmission circuit applied to an electronic device, comprising:
the system comprises a first selector switch, a second selector switch and a system main chip;
the system main chip comprises a first communication interface and a second communication interface which are used for outputting driving signals respectively, and a third communication interface and a fourth communication interface which are used for outputting enabling signals respectively;
the first change-over switch comprises a first fixed end, a first change-over end, a second change-over end, a first driving end and a first enabling end, the second change-over switch comprises a second fixed end, a third change-over end, a fourth change-over end, a second driving end and a second enabling end, and the first fixed end is connected with the second fixed end;
the first fixed end and the second fixed end are connected with the peripheral of the electronic equipment and are used for respectively receiving a signal source of the peripheral of the electronic equipment; each of the first to fourth switching terminals is used for connecting a signal source input end of a corresponding computer module;
the first enabling end is connected with the third communication interface, the second enabling end is connected with the fourth communication interface, the first driving end is connected with the first communication interface, and the second driving end is connected with the second communication interface.
2. The signal transmission circuit according to claim 1, characterized in that:
the first enabling end is used for receiving a first enabling signal output by the third communication interface so as to control whether the first switch works, and the second enabling end is used for receiving a second enabling signal output by the fourth communication interface so as to control whether the second switch works;
the first driving end is used for controlling the connection relation between the first fixed end and the first switching end and between the first fixed end and the second switching end according to a first driving signal output by the first communication interface when the first switching switch works; the second driving end is used for controlling the connection relation between the second fixed end and the third switching end and the fourth switching end according to a second driving signal output by the second communication interface when the second change-over switch works.
3. The signal transmission circuit according to claim 1, characterized in that:
the first change-over switch is arranged on the top layer of the PCB, and the second change-over switch is arranged on the bottom layer of the PCB, or the first change-over switch is arranged on the bottom layer of the PCB, and the second change-over switch is arranged on the top layer of the PCB;
the input pins of the first fixing end and the second fixing end are connected through the same via hole in the PCB.
4. The signal transmission circuit according to claim 1, characterized in that: the system also comprises a switch chip;
the switch chip is connected with the first fixed end, the second fixed end and the peripheral of the electronic equipment respectively.
5. The signal transmission circuit according to any one of claims 1 to 4, characterized in that:
the first fixed end and the second fixed end are connected with at least one of the following peripherals of the electronic equipment:
touch frame, mouse, keyboard, camera, microphone.
6. The signal transmission circuit according to any one of claims 1 to 4, characterized in that:
and the computer module is used for operating an android system or a windows system.
7. The utility model provides an interactive intelligence is dull and stereotyped which characterized in that: the signal transmission circuit comprises a peripheral device, an internal computer module, an external computer module connecting port and the signal transmission circuit of any one of claims 1 to 6;
the output port of the peripheral is connected with the first fixed end and the second fixed end, and each of the first to fourth switching ends is connected with a signal source input end of a corresponding internal computer module or an external computer module connecting port.
8. The interactive smart tablet of claim 7, wherein:
the peripheral device includes at least one of:
touch frame, mouse, keyboard, camera, microphone.
9. The interactive smart tablet of claim 7, wherein:
the external computer module connecting port is a Type-B interface.
10. The interactive smart tablet of claim 7, wherein:
the built-in computer module comprises a PC module and/or an android module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921608983.1U CN210627185U (en) | 2019-09-25 | 2019-09-25 | Signal transmission circuit and interactive intelligent panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921608983.1U CN210627185U (en) | 2019-09-25 | 2019-09-25 | Signal transmission circuit and interactive intelligent panel |
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| Publication Number | Publication Date |
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| CN210627185U true CN210627185U (en) | 2020-05-26 |
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| CN201921608983.1U Active CN210627185U (en) | 2019-09-25 | 2019-09-25 | Signal transmission circuit and interactive intelligent panel |
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| CN (1) | CN210627185U (en) |
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