CN213244179U - Video signal switching device - Google Patents
Video signal switching device Download PDFInfo
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- CN213244179U CN213244179U CN202022479402.8U CN202022479402U CN213244179U CN 213244179 U CN213244179 U CN 213244179U CN 202022479402 U CN202022479402 U CN 202022479402U CN 213244179 U CN213244179 U CN 213244179U
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Abstract
The utility model provides a video signal auto-change over device, include: a first signal interface and a second signal interface; the video controller is connected with the first signal interface and the second signal interface through a first switch and a second switch respectively; the signal switching controller is respectively connected with the first detection circuit and the second detection circuit; the first detection circuit and the second detection circuit are respectively connected with the first signal interface and the second signal interface, and the signal switching controller is respectively connected with the first switch and the second switch. The signal switching controller is used for receiving the detection result of whether the first detection circuit and the second detection circuit have signal input or not, a user can appoint a rule in advance, and then the opening and closing of the first switch and the second switch can be controlled according to the preset rule, so that the effective management of the input of the multi-path video signals is realized.
Description
Technical Field
The utility model relates to a line control technical field especially relates to a video signal auto-change over device.
Background
The screen projection display mode is very common nowadays, the limited display range can be expanded to a larger screen through screen projection, the screen projection modes are various, video signals can be input into a screen projection device through a video interface in a wired mode to be decoded and then transmitted into a display to be displayed, and the video signals can be input into a controller through a wireless communication module to be decoded and then transmitted into the display to be displayed.
However, the current screen projection is limited to one input or a plurality of inputs, and the input or the plurality of inputs are fixed, are preset and cannot be adjusted, and cannot be managed well or even directly supported when a plurality of video signal sources are input into the same display screen projection device.
SUMMERY OF THE UTILITY MODEL
To the not enough that exist among the prior art, the utility model provides a video signal auto-change over device.
In one embodiment, the present invention provides a video signal switching apparatus, comprising:
the first signal interface and the second signal interface are respectively used for receiving different video signals;
the video controller is connected with the first signal interface and the second signal interface through a first switch and a second switch respectively; the video controller is used for analyzing and processing the video signal and then sending the video signal to the target display for displaying; the first switch and the second switch are respectively used for controlling the connection and disconnection of a line between the first signal interface and the video controller and between the second signal interface and the video controller;
the signal switching controller is respectively connected with the first detection circuit and the second detection circuit; the first detection circuit and the second detection circuit are respectively connected with the first signal interface and the second signal interface, and the signal switching controller is respectively connected with the first switch and the second switch; the first detection circuit and the second detection circuit are respectively used for detecting whether video signals are input into the first signal interface and the second signal interface or not and transmitting detection results to the signal switching controller; the signal switching controller is used for controlling the opening and closing of the first switch and the second switch according to the detection result and a preset rule.
In one embodiment, the video signal switching apparatus further includes:
and the state display is connected with the signal switching controller and is used for displaying the detection results of the first detection circuit and the second detection circuit and the opening and closing states of the first switch and the second switch.
In one embodiment, the video signal switching apparatus further includes:
the input device is connected with the signal switching controller and is used for inputting a switching instruction to the signal switching controller; the signal switching controller is also used for controlling the opening and closing of the first switch and the second switch according to the switching instruction.
In one embodiment, an input device includes:
the mode selection input component is used for inputting a working mode to the signal switching controller;
and the switching input component is used for inputting a switching instruction to the signal switching controller.
In one embodiment, the status display and the input device together comprise a touch screen.
In one embodiment, the target display includes a first target display and a second target display; and the video controller is also used for processing the two paths of video signals and then respectively sending the processed two paths of video signals to the first target display and the second target display for displaying.
In one embodiment, the first signal interface or the second signal interface comprises any one of VGA, DVI, HDMI, wireless communication interface.
In one embodiment, the first detection circuit or the second detection circuit is a voltage detection circuit.
Through the video signal switching device, the signal switching controller receives the detection result of whether the first detection circuit and the second detection circuit have signal input or not, and then the first switch and the second switch can be controlled to be switched on and off according to the preset rule, the specific preset rule can be that the priority of the first signal interface is higher than that of the second signal interface, and when a signal enters at the same time, only the first switch is switched on. Of course, the user can also customize various rules, thereby realizing the effective management of the input of multiple video signals. The video controller does not need to manage the multi-channel video signals, and only needs to process and display the video signals which can be transmitted, so that the burden of the video controller is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic diagram of a control structure of a video signal switching device according to an embodiment of the present invention.
In the above drawings: 11. a first signal interface; 12. a second signal interface; 13. a third signal interface; 2. a video controller; 3. a target display; 31. a first target display; 32. a second target display; 41. a first switch; 42. a second switch; 43. a third switch; 5. a signal switching controller; 61. a first detection circuit; 62. a second detection circuit; 63. a third detection circuit; 7. a status display; 8. an input device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, in one embodiment, the present invention provides a video signal switching apparatus, comprising:
the first signal interface 11 and the second signal interface 12, the first signal interface 11 and the second signal interface 12 are respectively used for receiving different video signals;
the video controller 2 and the target display 3 are connected with each other, and the video controller 2 is connected with the first signal interface 11 and the second signal interface 12 through a first switch 41 and a second switch 42 respectively; the video controller 2 is used for analyzing and processing the video signal and then sending the video signal to the target display 3 for displaying; the first switch 41 and the second switch 42 are respectively used for controlling the connection and disconnection of the lines from the first signal interface 11 and the second signal interface 12 to the video controller 2;
a signal switching controller 5, a first detection circuit 61 and a second detection circuit 62 connected to the signal switching controller 5, respectively; the first detection circuit 61 and the second detection circuit 62 are further connected to the first signal interface 11 and the second signal interface 12, respectively, and the signal switching controller 5 is further connected to the first switch 41 and the second switch 42, respectively; the first detection circuit 61 and the second detection circuit 62 are respectively used for detecting whether video signals are input into the first signal interface 11 and the second signal interface 12 and transmitting the detection results to the signal switching controller 5; the signal switching controller 5 is configured to control the opening and closing of the first switch 41 and the second switch 42 according to the detection result and a preset rule.
For example, when the first detection circuit 61 detects that no signal is currently input, it sends a low level to the signal switching controller 5 to indicate no signal input, and when the second detection circuit 62 detects that a signal is currently input, it sends a high level to the signal switching controller 5 to indicate signal input. The preset rule is an output rule corresponding to each opening/closing state of the combination of the first switch 41 and the second switch 42, which is stored in advance, and the preset rule includes:
if the detection result of the first detection circuit 61 is a signal, and the detection result of the second detection circuit 62 is a no signal, the corresponding first switch 41 is controlled to be communicated;
if the detection result of the first detection circuit 61 is no signal and the detection result of the second detection circuit 62 is a signal, the corresponding second switch 42 is controlled to be connected;
if the detection result of the first detection circuit 61 is a signal, and the detection result of the second detection circuit 62 is a signal, the corresponding first switch 41 or the second switch 42 is controlled to be communicated;
the above is an example of the preset rule, and the user may make the corresponding rule according to the actual requirement.
The number of the signal interfaces, the detection circuits, and the switches is not limited to two, and as shown in fig. 1, the third signal interface 13, the third detection circuit 63, the third switch 43, and the like may be included, but may be more in practical use.
With the video signal switching apparatus, the signal switching controller 5 receives the detection result of whether the first detection circuit 61 and the second detection circuit 62 have signal inputs, and then controls the first switch 41 and the second switch 42 to be turned on or off according to a preset rule, where the specific preset rule may be that the priority of the first signal interface 11 is higher than that of the second signal interface 12, and only the first switch 41 is turned on when a signal enters at the same time. Of course, the user can also customize various rules, thereby realizing the effective management of the input of multiple video signals. The video controller 2 does not need to manage multiple paths of video signals, and only needs to process and display the transmitted video signals, so that the burden of the video controller 2 is reduced.
As shown in fig. 1, in an embodiment, the video signal switching apparatus further includes:
and a status display 7 connected to the signal switching controller 5 for displaying the detection results of the first detection circuit 61 and the second detection circuit 62 and the open/close status of the first switch 41 and the second switch 42.
The current on-state can be made more clearly known to the user by means of the state display 7. Further, the state display 7 is not limited to displaying the detection results of the first detection circuit 61 and the second detection circuit 62 and the open/close states of the first switch 41 and the second switch 42, and may include a third detection circuit 63, a third switch 43, and the like.
As shown in fig. 1, in an embodiment, the video signal switching apparatus further includes:
an input device 8 connected to the signal switching controller 5 for inputting a switching command to the signal switching controller 5; the signal switching controller 5 is also configured to control the opening and closing of the first switch 41 and the second switch 42 according to the switching instruction.
The signal switching controller 5 can control the first switch 41 and the second switch 42 to be switched on and off according to a preset rule, and can also adopt manual control, so that a user can know the current signal access condition through the status display 7 and input a switching instruction through the input device 8 according to requirements to manually switch on the corresponding switches.
Through the input device 8, when the preset rule can be met and the use in emergency cannot be met, relief measures can be taken, and the switching flexibility is improved.
In one embodiment, an input device includes:
the mode selection input component is used for inputting a working mode to the signal switching controller;
and the switching input component is used for inputting a switching instruction to the signal switching controller.
The mode selection input component is mainly used for switching between an automatic mode and a manual mode; the automatic mode is controlled according to preset rules, and the manual mode is controlled by manual input.
In one embodiment, the status display and the input device together comprise a touch screen.
The touch screen can well realize the integration of display and input functions, and a display component of the touch screen can be made of a liquid crystal material or an LED (light emitting diode) material.
As shown in FIG. 1, in one embodiment, the target display includes a first target display and a second target display; and the video controller is also used for processing the two paths of video signals and then respectively sending the processed two paths of video signals to the first target display and the second target display for displaying.
Among them, since the video controller 2 can perform multi-thread processing, it can simultaneously process a plurality of video signals, and when two video signals are inputted, they can be separately processed and then displayed on the first and second target displays 31 and 32. Of course, the video controller 2 may integrate a plurality of video signals into one video output, so as to display on the first target display 31 or the second target display 32 in a split screen manner.
In one embodiment, the first signal interface or the second signal interface comprises any one of VGA, DVI, HDMI, wireless communication interface.
Among them, VGA (Video Graphics Array), DVI (Digital Visual Interface), HDMI (High Definition Multimedia Interface).
In one embodiment, the first detection circuit or the second detection circuit is a voltage detection circuit.
Since video signals are basically in the form of voltages, a voltage detection circuit is used. Of course, other detection circuits may be used to detect signal characteristics.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described embodiments are merely illustrative of several embodiments of the present invention, which are described in detail and specific, but not intended 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. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A video signal switching apparatus, comprising:
the video signal processing device comprises a first signal interface and a second signal interface, wherein the first signal interface and the second signal interface are respectively used for receiving different video signals;
the video controller is connected with the first signal interface and the second signal interface through a first switch and a second switch respectively; the video controller is used for analyzing and processing a video signal and then sending the video signal to the target display for displaying; the first switch and the second switch are respectively used for controlling the connection and disconnection of a line between the first signal interface and the video controller and between the second signal interface and the video controller;
the signal switching controller is respectively connected with the first detection circuit and the second detection circuit; the first detection circuit and the second detection circuit are also respectively connected with the first signal interface and the second signal interface, and the signal switching controller is also respectively connected with the first switch and the second switch; the first detection circuit and the second detection circuit are respectively used for detecting whether video signals are input into the first signal interface and the second signal interface and transmitting detection results to the signal switching controller; and the signal switching controller is used for controlling the on-off of the first switch and the second switch according to the detection result and a preset rule.
2. The video signal switching apparatus according to claim 1, further comprising:
and the state display is connected with the signal switching controller and is used for displaying the detection results of the first detection circuit and the second detection circuit and the opening and closing states of the first switch and the second switch.
3. The video signal switching apparatus according to claim 2, further comprising:
the input device is connected with the signal switching controller and is used for inputting a switching instruction to the signal switching controller; the signal switching controller is further configured to control the first switch and the second switch to be switched on and off according to the switching instruction.
4. The video signal switching apparatus according to claim 3, wherein said input device comprises:
a mode selection input component for inputting a working mode to the signal switching controller;
and the switching input component is used for inputting the switching instruction to the signal switching controller.
5. The video signal switching apparatus according to claim 3, wherein the status display and the input device together form a touch screen.
6. The video signal switching apparatus according to claim 1, wherein the target display comprises a first target display and a second target display; and the video controller is also used for processing the two paths of video signals and then respectively sending the processed two paths of video signals to the first target display and the second target display for displaying.
7. The apparatus of claim 1, wherein the first signal interface or the second signal interface comprises any one of VGA, DVI, HDMI, and wireless communication interface.
8. The video signal switching apparatus according to claim 1, wherein said first detecting circuit or said second detecting circuit is a voltage detecting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022479402.8U CN213244179U (en) | 2020-10-29 | 2020-10-29 | Video signal switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022479402.8U CN213244179U (en) | 2020-10-29 | 2020-10-29 | Video signal switching device |
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| Publication Number | Publication Date |
|---|---|
| CN213244179U true CN213244179U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022479402.8U Active CN213244179U (en) | 2020-10-29 | 2020-10-29 | Video signal switching device |
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