CN211959368U - Audio and video signal switching device - Google Patents
Audio and video signal switching device Download PDFInfo
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- CN211959368U CN211959368U CN202020884463.XU CN202020884463U CN211959368U CN 211959368 U CN211959368 U CN 211959368U CN 202020884463 U CN202020884463 U CN 202020884463U CN 211959368 U CN211959368 U CN 211959368U
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Abstract
The utility model relates to the field of communication, a audio and video signal auto-change over device is disclosed, include: the system comprises an encoder, a switch and a decoder, wherein the encoder is used for being in communication connection with an audio and video signal source, the switch is in communication connection with the encoder, and the decoder is in communication connection with the switch and is used for being in communication connection with an audio and video player; the encoder is used for receiving the audio and video signals sent by the audio and video signal source, encoding the audio and video signals to obtain encoded signals and sending the encoded signals to the switch; the exchanger is used for receiving the coded signal and sending the coded signal to the decoder; the decoder is used for receiving the coded signals, decoding the coded signals to obtain decoded signals and sending the decoded signals to the audio and video player. Compared with the prior art, the utility model discloses the audio and video signal auto-change over device that embodiment provided has can connect more signal sources and audio and video player and use more convenient advantage.
Description
Technical Field
The utility model relates to the field of communication, in particular to audio and video signal auto-change over device.
Background
With the increase of high-definition signal sources and audio/video players, people need to switch different signal source contents to any audio/video player more and more, so that an audio/video signal switching device such as an audio/video matrix switcher arises. The audio and video matrix switcher on the market at present is designed into an integrated type, namely, the audio and video matrix switcher consists of a matrix host and a plurality of signal input and output interfaces.
However, the inventor of the present invention finds that the number of interfaces of the audio/video matrix switcher in the prior art is small, for example, the specification of the audio/video matrix switcher commonly found in the market is usually 3x3(3 input interfaces and 3 output interfaces) or 4x4(4 input interfaces and 4 output interfaces) or 5x5(5 input interfaces and 5 output interfaces), and it is difficult to meet the increasing connection requirement of the signal source and the audio/video player; and the number of the interfaces of each audio/video matrix switching device is certain, and if the number of the signal sources or the receiving devices exceeds the number of the interfaces, the audio/video matrix switching devices with larger number of the interfaces need to be replaced, so that the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the present invention is to provide an audio/video signal switching device, which can connect more signal sources and audio/video players and is more convenient to use.
In order to solve the above technical problem, an embodiment of the present invention provides an audio/video signal switching apparatus, including: the system comprises an encoder, a switch and a decoder, wherein the encoder is used for being in communication connection with an audio and video signal source, the switch is in communication connection with the encoder, and the decoder is in communication connection with the switch and is used for being in communication connection with an audio and video player; the encoder is used for receiving the audio and video signals sent by the audio and video signal source, encoding the audio and video signals to obtain encoded signals, and sending the encoded signals to the switch; the switch is used for receiving the coded signal and sending the coded signal to the decoder; the decoder is used for receiving the coded signals, decoding the coded signals to obtain decoded signals and sending the decoded signals to the audio and video player.
Compared with the prior art, the embodiment of the utility model replaces the matrix host in the audio and video matrix switcher in the prior art through the switcher, and more encoders and decoders can be connected because more signal interfaces of the switcher are provided, thereby more signal sources and audio and video players can be connected; in addition, the encoder is in communication connection with the signal source, and the decoder is connected with the audio and video player, so that when the signal source or the audio and video player needs to be expanded, only the encoder in communication connection with the expanded signal source or the decoder in communication connection with the audio and video player needs to be added, a switch does not need to be replaced, and the use is more convenient.
In addition, the number of the coded signals is multiple, and the decoder comprises a first receiving unit and a second receiving unit; the first receiving unit is used for receiving the coded signal; the second receiving unit is used for receiving a signal source marking signal sent by the audio and video player and sending the signal source marking signal to the switch; the switch is used for receiving the signal source marking signal, acquiring a target signal from the plurality of coded signals according to the signal source marking signal, and sending the target signal to the first receiving unit. The decoder is provided with a second receiving unit for receiving the signal source marking signal sent by the audio and video player, and the switch sends the target signal to the first receiving unit according to the signal source marking signal, so that the audio and video player can obtain a signal to be played from a plurality of coded signals, namely, a user can select to play information of a signal source which the user wants to see from the audio and video player section, and the use experience of the user is further improved.
In addition, the number of the encoders is multiple, and the encoders are used for being connected with the audio and video signal sources in a one-to-one correspondence mode. The encoders are connected with the audio and video signal sources in a one-to-one correspondence manner, so that signal mixing possibly caused when a plurality of audio and video signal sources are connected with the same encoder is avoided.
In addition, the number of the decoders is multiple, and the decoders are used for being connected with the audio and video players in a one-to-one correspondence mode. The decoders are connected with the audio and video players in a one-to-one correspondence mode, so that signal mixing possibly caused when a plurality of audio and video players are connected with the same decoder is avoided.
In addition, the encoder establishes a communication connection with the switch via a wireless network. The encoder and the switch are in communication connection through a wireless network, and wiring is not needed between the encoder and the switch, so that the use is further facilitated for users.
In addition, the decoder establishes a communication connection with the switch via a wireless network. The decoder and the switch establish communication connection through a wireless network, and wiring is not needed between the decoder and the switch, so that the use is further convenient for users.
In addition, the switch sets up in the high in the clouds. Set up the switch in high in the clouds, need not to occupy user's place, and the signal coverage area of the switch in high in the clouds is wider, has effectually enlarged the region that can arrange encoder and decoder to further convenience of customers uses.
In addition, the decoder and the encoder establish a communication connection with the switch via a network cable and/or an optical fiber. The decoder and the encoder can be in communication connection with the switch through the existing network cable and/or optical fiber and the like, and extra wiring is not needed, so that the use by a user is further facilitated.
Drawings
Fig. 1 is a schematic structural diagram of an audio/video signal switching device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an encoder in an audio/video signal switching apparatus according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a decoder in an audio/video signal switching apparatus according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a decoder in an audio/video signal switching apparatus according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments.
The first embodiment of the present invention relates to an audio/video signal switching apparatus 100, as shown in fig. 1, including: an encoder 10, a switch 20 communicatively coupled to the encoder 10, and a decoder 30 communicatively coupled to the switch 20. The encoder 10 is used for being in communication connection with the audio/video signal source 200, receiving an audio/video signal sent by the audio/video signal source 200, after receiving the audio/video signal, performing encoding processing on the audio/video signal by the encoder 10 to obtain an encoded signal, and sending the encoded signal to the switch 20; the switch 20 is configured to receive the encoded signal and send the encoded signal to the decoder 30, and the decoder 30 is configured to be in communication connection with the audio/video player 300, decode the received encoded signal to obtain a decoded signal, and send the decoded signal to the audio/video player 300 for playing.
Compared with the prior art, the utility model discloses among the audio and video signal switching device that the first embodiment provided, the signal that sends the signal source through switch 20 switches over, because the signal interface of switch is more, can connect more encoder and decoder to connect more signal source and audio and video player indirectly. In addition, the information processing capability of the switch 20 is stronger than that of devices such as a matrix host and the like in the prior art, so that the switching efficiency of audio and video signals can be effectively improved. The encoder 10 is in communication connection with the signal source 200, and the decoder 30 is connected with the audio/video player 300, so that when the signal source 200 or the audio/video player 300 needs to be extended, only the encoder 10 in communication connection with the extended signal source 200 or the decoder 30 in communication connection with the audio/video player 300 needs to be added, the exchanger 20 does not need to be replaced, and the use is more convenient.
Specifically, in the present embodiment, as shown in fig. 2, the encoder 10 includes a signal receiving unit 11 for communication connection with a signal source, a signal encoding unit 12 connected to the signal receiving unit 11, a network output unit 13 connected to the signal encoding unit 12, and an encoding control unit 14 connected to each of the signal receiving unit 11, the signal encoding unit 12, and the network output unit 13 and configured to control the signal receiving unit 11, the signal encoding unit 12, and the network output unit 13.
The signal receiving unit 11 is configured to receive a signal sent by a signal source, and send the signal sent by the signal source to the signal encoding unit 12. Specifically, in the present embodiment, the signal receiving unit 11 includes at least one signal interface. It is understood that the signal receiving unit 11 may be provided with only one communication interface, or may be provided with a plurality of different types of communication interfaces, such as an HDMI interface, a DVI interface, an SDI interface, and the like, which are not illustrated herein, and the setting can be flexibly performed according to actual needs.
The signal encoding unit 12 encodes the signal transmitted by the signal source by using an encoding protocol to obtain an encoded signal. In the present embodiment, the coding protocol is a Synchronous Serial Interface (SSI) protocol. It should be understood that the foregoing encoding protocol is a synchronous serial interface protocol, which is only a specific example in this embodiment, and is not limited thereto, and in other embodiments of the present invention, other types of communication protocols such as a BiSS communication protocol, an EnDat protocol, and the like may be used for encoding, and are not illustrated here, and may be flexibly selected according to actual needs.
The network output unit 13 is used to send the encoded signal to the switch 20. Specifically, in the present embodiment, when the network output unit 13 transmits the encoded signal to the switch 20, a communication connection is first established in the switch 20, and then the encoded signal is transmitted to the switch 20. In the present embodiment, the network output unit 13 establishes a communication connection with the switch 20 via a wireless network. The network output unit 13 and the switch 20 establish a communication connection via a wireless network without wiring between the network output unit 13 and the switch 20, thereby further facilitating user use. It is understood that the aforementioned establishment of the communication connection between the network output unit 13 and the switch 20 via the wireless network is only a specific example in this embodiment, and is not limited thereto, and in other embodiments of the present invention, the communication connection between the network output unit 13 and the switch 20 may be established via a network cable and/or an optical fiber, and the establishment of the communication connection between the network output unit 13 and the switch 20 using the network cable and/or the optical fiber also does not need to perform additional wiring, which is convenient for users to use.
Specifically, in the present embodiment, as shown in fig. 3, the decoder 30 includes a first receiving unit 31 for communication connection with a signal source, a signal decoding unit 32 connected to the first receiving unit 31, a signal output unit 33 connected to the signal decoding unit 32, and a decoding control unit 34 connected to each of the first receiving unit 31, the signal decoding unit 32, and the signal output unit 33 and configured to control the first receiving unit 31, the signal decoding unit 32, and the signal output unit 33.
The first receiving unit 31 is configured to receive the encoded signal sent by the switch 20, and send the encoded signal to the signal decoding unit 32. Specifically, in the present embodiment, when the first receiving unit 31 receives the encoded signal transmitted by the switch 20, the first receiving unit first establishes a communication connection with the switch 20 and then receives the encoded signal transmitted by the switch 20. In the present embodiment, the first receiving unit 31 establishes a communication connection with the switch 20 via a wireless network. The first receiving unit 31 and the switch 20 establish a communication connection via a wireless network without wiring between the first receiving unit 31 and the switch 20, thereby further facilitating user use. It should be understood that the aforementioned establishing of the communication connection between the first receiving unit 31 and the switch 20 via the wireless network is only a specific example in this embodiment, and is not limited thereto, and in other embodiments of the present invention, the communication connection between the first receiving unit 31 and the switch 20 may be established via a network cable and/or an optical fiber, and the establishing of the communication connection between the first receiving unit 31 and the switch 20 using the network cable and/or the optical fiber also does not need to perform additional wiring, which is convenient for users to use.
The signal decoding unit 32 decodes the encoded signal by a decoding protocol to obtain a decoded signal. In the present embodiment, the decoding protocol used in the signal decoding unit 32 corresponds to the encoding protocol used in the signal encoding unit 12, so that the encoded signal is decoded more quickly and accurately to obtain a decoded signal.
The signal output unit 33 is used for sending a decoding signal to the audio/video player. Specifically, in the present embodiment, the signal output unit 33 includes at least one signal interface for connecting with an audio/video player. It is understood that the signal output unit 33 may be provided with only one communication interface, or may be provided with a plurality of different types of communication interfaces, such as an HDMI interface, a DVI interface, an SDI interface, and the like, which are not illustrated herein, and the setting can be flexibly performed according to actual needs.
Preferably, in this embodiment, the switch 20 is disposed in the cloud. Set up switch 20 in the high in the clouds, need not to occupy user's place, and the signal coverage area of switch 20 in the high in the clouds is wider, has effectually enlarged the region that can arrange encoder 10 and decoder 30 to further convenience of customers uses. It is understood that the switch 20 is disposed in the cloud end only as a specific example of the application in the embodiment, and is not limited thereto.
Preferably, in the present embodiment, the number of the encoders 10 is multiple, and the encoders 10 are configured to be connected to the audio/video signal sources 200 in a one-to-one correspondence. The encoders 10 are connected with the audio/video signal sources 200 in a one-to-one correspondence manner, so that signal mixing possibly caused when a plurality of audio/video signal sources 200 are connected with the same encoder 10 is avoided, in addition, each encoder 10 can be arranged near the audio/video signal source 200, remote wiring is avoided, and the use by a user is further facilitated. It should be understood that the aforementioned one-to-one connection between the encoder 10 and the audio/video signal source 200 is only a specific example in this embodiment, and is not limited thereto, and in other embodiments of the present invention, one encoder 10 may be connected to a plurality of audio/video signal sources 200, and the like, and is not listed here, and the flexible setting may be specifically performed according to actual needs.
Preferably, in the present embodiment, the number of the decoders 30 is plural, and the encoders 30 are used for one-to-one connection with the av player 300. The decoders 30 are connected with the audio/video players 300 in a one-to-one correspondence manner, so that signal mixing possibly caused when a plurality of audio/video players 300 are connected with the same decoder 30 is avoided, in addition, each decoder 30 can be arranged near the audio/video player 300, remote wiring is avoided, and the use by a user is further facilitated. It should be understood that the aforementioned one-to-one connection between the encoder 30 and the audio/video player 300 is only a specific example in this embodiment, and is not limited thereto, and in other embodiments of the present invention, one decoder 30 may be connected to a plurality of audio/video players 300, and the like, which are not listed here, and may be flexibly configured according to actual needs.
A second embodiment of the present invention relates to an audio/video signal switching device. The second embodiment is substantially the same as the first embodiment, and includes an encoder, a switch, and a decoder, and is mainly different in that, as shown in fig. 4, in the second embodiment of the present invention, the decoder 30 includes a second receiving unit 35 connected to the control unit 34 in addition to the first receiving unit 31, the signal decoding unit 32, the signal output unit 33, and the control unit 34.
The second receiving unit 35 is configured to receive a signal source flag signal sent by the audio/video player, and send the signal source flag signal to the switch. The switch is configured to receive the signal source tag signal, obtain a target signal from the plurality of encoded signals according to the signal source tag signal, and send the target signal to the first receiving unit 31.
Compared with the prior art, the utility model discloses audio and video signal auto-change over device that second embodiment provided is in keeping the whole technological effects of first embodiment, set up second receiving element 35 in decoder 30, the signal source mark signal that the audio and video player sent is received to second receiving element 35, and send signal source mark signal to the switch, the switch acquires the target signal from a plurality of coded signal according to signal source mark signal, and send the target signal to first receiving element 31, thereby realize the audio and video player from independently acquiring the signal of treating the broadcast in a plurality of coded signal, namely the user can select the information of the signal source that the broadcast oneself wanted to see from the audio and video player section, further promotion user's use is experienced.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, a unit which is not so closely related to the solution of the technical problem proposed by the present invention is not introduced in the present embodiment, but it does not indicate that there are no other units in the present embodiment.
It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.
Claims (8)
1. An audio/video signal switching apparatus, comprising:
the system comprises an encoder, a switch and a decoder, wherein the encoder is used for being in communication connection with an audio and video signal source, the switch is in communication connection with the encoder, and the decoder is in communication connection with the switch and is used for being in communication connection with an audio and video player;
the encoder is used for receiving the audio and video signals sent by the audio and video signal source, encoding the audio and video signals to obtain encoded signals, and sending the encoded signals to the switch;
the switch is used for receiving the coded signal and sending the coded signal to the decoder;
the decoder is used for receiving the coded signals, decoding the coded signals to obtain decoded signals and sending the decoded signals to the audio and video player.
2. The audio-video signal switching device according to claim 1, wherein the number of the coded signals is plural, and the decoder includes a first receiving unit and a second receiving unit;
the first receiving unit is used for receiving the coded signal;
the second receiving unit is used for receiving a signal source marking signal sent by the audio and video player and sending the signal source marking signal to the switch;
the switch is used for receiving the signal source marking signal, acquiring a target signal from the plurality of coded signals according to the signal source marking signal, and sending the target signal to the first receiving unit.
3. The device for switching audio/video signals according to claim 1, wherein the number of the encoders is plural, and the encoders are used for being connected with the audio/video signal sources in a one-to-one correspondence manner.
4. The device for switching audio/video signals according to claim 1, wherein the number of the decoders is plural, and the decoders are used for being connected with the audio/video players in a one-to-one correspondence manner.
5. The audio-video signal switching apparatus according to claim 1, wherein the encoder and the switch establish a communication connection via a wireless network.
6. The audio-video signal switching apparatus according to claim 1, wherein the decoder establishes a communication connection with the switch via a wireless network.
7. The audio-video signal switching device according to claim 1, wherein the switch is disposed in a cloud.
8. The audio-video signal switching apparatus according to claim 7, wherein the decoder and the encoder establish a communication connection with the switch via a network cable and/or an optical fiber.
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|---|---|---|---|
| CN202020884463.XU CN211959368U (en) | 2020-05-22 | 2020-05-22 | Audio and video signal switching device |
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| CN202020884463.XU CN211959368U (en) | 2020-05-22 | 2020-05-22 | Audio and video signal switching device |
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| CN211959368U true CN211959368U (en) | 2020-11-17 |
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