CN115914508A - Automatic signal detection switching device and method applied to video terminal - Google Patents
Automatic signal detection switching device and method applied to video terminal Download PDFInfo
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- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a signal automatic detection switching device and method applied to a video terminal, and relates to the technical field of signal switching. The invention comprises a main housing unit and a processing unit. The invention has the beneficial effects that: from the viewpoint of system maintenance, the device can effectively reduce the overhaul range after the fault occurs in the video conference system, effectively reduce the fault rate of the system when the fault occurs, can detect and switch signal sources at the first time, can reduce the influence on the conference to the minimum, improve the experience of participants, and ensure that the device for switching the main and standby signals in the market still stays at a single mode for switching one signal, and the occurrence of the device can simultaneously solve the problems of network and video signal detection and automatic switching in the conference system, thereby being more convenient and practical in the actual environment.
Description
Technical Field
The invention relates to the technical field of signal switching, in particular to a signal automatic detection switching device and a signal automatic detection switching method applied to a video terminal.
Background
With the change of communication technology, the collaboration between employees and the collaboration between departments becomes more and more frequent, and in addition, the company greatly reduces the cost and strictly controls the labor cost, and the video conference system is widely applied to meetings of company decision-making, production, infrastructure construction, management and the like, so that the production and office efficiency of the company is greatly improved, but higher requirements are also provided for the high-quality, high-reliability and high-safety operation of the video conference system.
Many videos and network signal switchers have been distributed on the market, the types are various but the type is single, the detection and the automatic switching are carried out on the videos and the network dual signals, the function can bring great convenience for system operation and maintenance and troubleshooting, namely, a device capable of detecting and automatically switching the videos and the network dual signals is absent at present, so that a device capable of rapidly switching to a standby link when the network and the video signals break down is urgently needed, and a conference can be smoothly and efficiently carried out.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the problems occurring in the prior art.
Therefore, the technical problem to be solved by the present invention is to lack a device capable of quickly switching to the standby link when the network and the video signal fail.
In order to solve the technical problems, the invention provides the following technical scheme: a signal automatic detection switching device applied to a video terminal comprises a main shell unit, a signal automatic detection switching unit and a signal automatic detection switching unit, wherein the main shell unit comprises a main shell, an input interface, an output interface and a power supply interface; and the processing unit is positioned in the main shell and comprises a PCB (printed Circuit Board), an input processing module and an output processing module, and the PCB is electrically connected with the input module and the output module respectively.
As a preferred embodiment of the signal automatic detection switching apparatus applied to the video terminal according to the present invention, wherein: the input interface comprises a plurality of HDMI video input interfaces and RJ45 network input interfaces.
As a preferred embodiment of the signal automatic detection switching apparatus applied to the video terminal according to the present invention, wherein: the output interface comprises an HDMI video output interface and an RJ45 network output interface.
As a preferred embodiment of the signal automatic detection switching apparatus applied to the video terminal according to the present invention, wherein: the power interface is positioned between the HDMI video output interface and the RJ45 network output interface and receives a 5V power supply.
As a preferable solution of the signal automatic detection and switching device applied to the video terminal of the present invention, wherein: the input processing module comprises an HDMI video input circuit and an RJ45 network input circuit, and the HDMI video input circuit and the RJ45 network input circuit are respectively connected with the HDMI video input interface and the RJ45 network input interface.
As a preferable solution of the signal automatic detection and switching device applied to the video terminal of the present invention, wherein: the HDMI video input circuit comprises 19 input pins.
As a preferable solution of the signal automatic detection and switching device applied to the video terminal of the present invention, wherein: the RJ45 network input circuit comprises 8 input pins.
As a preferable solution of the signal automatic detection and switching device applied to the video terminal of the present invention, wherein: the output processing module comprises an HDMI video detection switching circuit and an RJ45 network detection switching circuit.
As a preferred embodiment of the signal automatic detection switching apparatus applied to the video terminal according to the present invention, wherein: the HDMI video detection switching circuit and the RJ45 network detection switching circuit are electrically connected with the HDMI video input circuit and the RJ45 network input circuit respectively.
In order to solve the technical problems, the invention also provides the following technical scheme: a signal automatic detection switching method applied to a video terminal is realized by the signal automatic detection switching device applied to the video terminal, and comprises the following steps: the HDMI video input circuit is powered on for the first time to default case 0, namely, a first path of HDMI video input interface is defaulted; the RJ45 network input circuit is powered on for the first time to obtain a default case 1, namely a first path of default RJ45 network input interface; the HDMI video detection switching circuit is powered on for the first time to default the case 0, namely, the first path of HDMI video input interface is defaulted; the RJ45 network detection switching circuit is powered on for the first time to obtain a default case 1, namely a first RJ45 network input interface is defaulted; under the condition that both RJ45 network input interfaces are not communicated, whether the RJ45 network input interfaces are communicated or not needs to be inquired again; under the condition that the network is connected, whether the network is disconnected at the moment is detected through a ping command, and if the network is disconnected, reconnection is needed.
The invention has the beneficial effects that:
from the perspective of system maintenance, the device can effectively reduce the overhaul range after the fault occurs in the video conference system, effectively reduce the fault rate of the system after the fault occurs, can detect and switch the signal source at the first time, can reduce the influence on the conference to the minimum, promote the experience of participants to ensure that the device aiming at the switching of the main and standby signals on the market still stays at a single signal for switching, can simultaneously solve the problems of network and video signal detection and automatic switching in the conference system due to the occurrence of the device, and is more convenient and practical in the actual environment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor. Wherein:
fig. 1 is a schematic view of the overall structure of a main housing unit of an automatic signal detection and switching apparatus for a video terminal according to the present invention;
fig. 2 is another schematic view of an automatic signal detection switching apparatus applied to a video terminal according to the present invention;
fig. 3 is a schematic diagram of a circuit welding of a PCB circuit board of the automatic signal detection switching device applied to the video terminal according to the present invention;
FIG. 4 is a schematic diagram of an HDMI video input circuit of the signal automatic detection switching apparatus applied to a video terminal according to the present invention;
fig. 5 is a schematic diagram of an RJ45 network input circuit of the automatic signal detection switching apparatus applied to a video terminal according to the present invention;
FIG. 6 is a schematic diagram of an HDMI video detection switching circuit of the signal automatic detection switching device applied to a video terminal according to the present invention;
fig. 7 is a schematic diagram of an RJ45 network detection switching circuit of the automatic signal detection switching apparatus applied to a video terminal according to the present invention;
fig. 8 is a flowchart of a signal automatic detection switching method applied to a video terminal according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 5, for a first embodiment of the present invention, this embodiment provides an automatic signal detection and switching device applied to a video terminal, including a main housing unit 100, including a main housing 101, an input interface 102, an output interface 103 and a power interface 104, where one end of the main housing 101 is provided with the input interface 102, and the other end is provided with the output interface 103 and the power interface 104; the processing unit 200, located in the main housing 101, includes a PCB 201, an input processing module 202 and an output processing module 203, where the PCB 201 is electrically connected to the input module 202 and the output module 203 respectively.
The input interface 102 includes a number of HDMI video input interfaces 102a and RJ45 network input interfaces 102b.
The output interface 103 includes an HDMI video output interface 103a and an RJ45 network output interface 103b.
The power interface 104 is located between the HDMI video output interface 103a and the RJ45 network output interface 103b, and receives 5V power.
The input processing module 202 includes an HDMI video input circuit 202a and an RJ45 network input circuit 202b, which are respectively connected to the HDMI video input interface 102a and the RJ45 network input interface 102b.
The HDMI video input circuit 202a includes 19 input pins.
The RJ45 network input circuit 202b includes 8 input pins.
The specific signals of the 19 input pins of the HDMI video input circuit 202a are explained as follows:
TABLE 1
The 1-8 input pins of the RJ45 network input circuit 202b represent:
| pin number | Name (R) | Explaining the |
| 1 | TX+ | Signaling + |
| 2 | TX- | Signalling- |
| 3 | RX+ | Signal collecting device |
| 4 | n/c | Hollow pin |
| 5 | n/c | |
| 6 | RX- | Receive signal- |
| 7 | n/c | Hollow stitch |
| 8 | n/c | Hollow pin |
TABLE 2
Example 2
Referring to fig. 4 and 5, a second embodiment of the present invention, which is different from the previous embodiment, is:
the output processing module 203 includes an HDMI video detection switching circuit 203a and an RJ45 network detection switching circuit 203b.
The HDMI video detection switching circuit 203a and the RJ45 network detection switching circuit 203b are electrically connected to the HDMI video input circuit 202a and the RJ45 network input circuit 202b, respectively.
When the main cable and the standby cable are inserted, the first RJ45 and the HDMI interface are preferentially selected as the main input interface according to the preset program,
the specific implementation code is as follows:
default HDMI video input interface selection code:
default RJ45 network input interface selection code:
example 3
Referring to fig. 6 to 8, a third embodiment of the present invention provides an automatic signal detection and switching method applied to a video terminal, which is implemented by the automatic signal detection and switching apparatus applied to the video terminal of the above embodiment, and includes the following steps:
the HDMI video input circuit 202a powers on the default case 0 for the first time, that is, defaults to the first HDMI video input interface 102a; the RJ45 network input circuit 202b powers up the default case 1 for the first time, that is, defaults to the first RJ45 network input interface 102b; the HDMI video detection switching circuit 202a powers on the default case 0 for the first time, that is, defaults to the first HDMI video input interface 102a; the RJ45 network detection switching circuit 202b powers on the default case 1 for the first time, that is, defaults to the first RJ45 network input interface 102b; under the condition that the two RJ45 network input interfaces 102b are not communicated, whether the two RJ45 network input interfaces are communicated or not needs to be inquired again; under the condition that the network is connected, whether the network is disconnected at the moment is detected through a ping command, and if the network is disconnected, reconnection is needed.
When the main input interface detects the signal loss, the main input interface and the standby input interface are switched,
the implementation code is as follows:
detection and switching code of the HDMI input interface:
detection and switching code of RJ45 network input interface:
/>
it should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a be applied to video terminal's signal automated inspection auto-change over device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the main shell unit (100) comprises a main shell (101), an input interface (102), an output interface (103) and a power interface (104), wherein the input interface (102) is arranged at one end of the main shell (101), and the output interface (103) and the power interface (104) are arranged at the other end of the main shell;
the processing unit (200) is positioned in the main shell (101) and comprises a PCB circuit board (201), an input processing module (202) and an output processing module (203), wherein the PCB circuit board (201) is electrically connected with the input module (202) and the output module (203) respectively.
2. The signal automatic detection switching apparatus applied to a video terminal according to claim 1, wherein: the input interface (102) comprises a plurality of HDMI video input interfaces (102 a) and RJ45 network input interfaces (102 b).
3. The automatic signal detection switching apparatus for a video terminal as claimed in claim 2, wherein: the output interface (103) comprises an HDMI video output interface (103 a) and an RJ45 network output interface (103 b).
4. The signal automatic detection switching apparatus applied to a video terminal according to claim 3, wherein: the power interface (104) is located between the HDMI video output interface (103 a) and the RJ45 network output interface (103 b), and receives a 5V power.
5. The automatic signal detection and switching device for video terminals according to any of claims 2 to 4, wherein: the input processing module (202) comprises an HDMI video input circuit (202 a) and an RJ45 network input circuit (202 b), which are respectively connected with the HDMI video input interface (102 a) and the RJ45 network input interface (102 b).
6. The signal automatic detection switching apparatus applied to a video terminal according to claim 5, wherein: the HDMI video input circuit (202 a) includes 19 input pins.
7. The signal automatic detection switching apparatus applied to a video terminal according to claim 6, wherein: the RJ45 network input circuit (202 b) includes 8 input pins.
8. The automatic signal detection switching apparatus for a video terminal according to any one of claims 1 to 4, 6 and 7, wherein: the output processing module (203) comprises an HDMI video detection switching circuit (203 a) and an RJ45 network detection switching circuit (203 b).
9. The signal automatic detection switching apparatus applied to a video terminal according to claim 8, wherein: the HDMI video detection switching circuit (203 a) and the RJ45 network detection switching circuit (203 b) are respectively electrically connected with the HDMI video input circuit (202 a) and the RJ45 network input circuit (202 b).
10. A signal automatic detection switching method applied to a video terminal is characterized in that: the signal automatic detection switching device applied to the video terminal according to claim 5 comprises the following steps,
the HDMI video input circuit (202 a) is powered on for the first time to obtain a default case 0, namely a default first path of HDMI video input interface (102 a);
the RJ45 network input circuit (202 b) is powered on for the first time to default case 1, namely, a first path of RJ45 network input interface (102 b) is defaulted;
the HDMI video detection switching circuit (202 a) is powered on for the first time to obtain a default case 0, namely a default first path of HDMI video input interface (102 a);
the RJ45 network detection switching circuit (202 b) is powered on for the first time to default case 1, namely, the first path of RJ45 network input interface (102 b) is defaulted;
under the condition that the two RJ45 network input interfaces (102 b) are not communicated, whether the two RJ45 network input interfaces are communicated or not needs to be inquired again;
under the condition that the network is connected, whether the network is disconnected at the moment is detected through a ping command, and if the network is disconnected, reconnection is needed.
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