CN211702234U - Wireless image transmission system, transmitter, receiver and image transmission system - Google Patents
Wireless image transmission system, transmitter, receiver and image transmission system Download PDFInfo
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- CN211702234U CN211702234U CN202020233014.9U CN202020233014U CN211702234U CN 211702234 U CN211702234 U CN 211702234U CN 202020233014 U CN202020233014 U CN 202020233014U CN 211702234 U CN211702234 U CN 211702234U
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Abstract
The application discloses wireless image transmission system includes: at least two transmitters and one receiver; the transmitter includes: the device comprises a first interface, an image coding chip and a first Wi-Fi module; the receiver includes: the second Wi-Fi module, the image decoding chip and the second interface; the first interface is used for respectively connecting the image coding chip and external shooting equipment; the other end of the image coding chip is connected with the first Wi-Fi module; the second Wi-Fi module is used for establishing a connection channel with at least one first Wi-Fi module in an STA mode in an AP mode; one end of the image decoding chip is connected with the second Wi-Fi module; the other end of the image decoding chip is connected with the second interface; the other end of the second interface is used for connecting an external display device. The system disclosed by the application solves the problem that the existing wireless image transmission system occupies too much channel resources when multiple camera positions are used.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a wireless image transmission system, a transmitter, a receiver, and an image transmission system.
Background
When shooting is carried out in a large occasion, a plurality of camera positions are usually arranged. For example, in occasions such as sports events, concerts and the like, the multiple camera positions are arranged, so that the multi-directional viewing angle can be brought to audiences, and the viewing experience of the audiences is greatly improved.
At present, when shooting is required to be carried out at a plurality of camera positions, a set of wireless image transmission system is required to be equipped for the shooting equipment of each camera position. A set of wireless image transmission system generally comprises a transmitter and a receiver, wherein after video data shot by shooting equipment is input into the transmitter, the transmitter transmits the video data to the receiver through a wireless radio frequency technology, and the receiver outputs the video data to display equipment.
However, the existing wireless image transmission system selects the WHDI standard in terms of wireless radio frequency technology. The WHDI standard allows only one transmission and one reception of a single channel, i.e., only one transmitter and one receiver are allowed to perform wireless data transmission in a single channel. Therefore, for a scene requiring a plurality of camera positions, the shooting device of each camera position needs to use one set of wireless image transmission system, each set of wireless image transmission system needs to occupy one channel, and when the channel resources are insufficient, some camera positions cannot realize wireless image transmission.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, the present application provides a wireless image transmission system, a transmitter, a receiver, and an image transmission system.
According to a first aspect of embodiments of the present application, a wireless image transmission system is provided. The wireless image transmission system includes:
at least two transmitters and one receiver;
the transmitter includes: the device comprises a first interface, an image coding chip and a first Wi-Fi module; the receiver includes: the second Wi-Fi module, the image decoding chip and the second interface;
the first interface is used for respectively connecting the image coding chip and external shooting equipment; the other end of the image coding chip is connected with the first Wi-Fi module;
the image coding chip is used for coding video data input by the external shooting equipment and transmitting the coded video data and the identification information of the image coding chip to the receiver through the first Wi-Fi module;
the second Wi-Fi module is used for establishing a connection channel with at least one first Wi-Fi module in an STA mode in an AP mode;
one end of the image decoding chip is connected with the second Wi-Fi module; the other end of the image decoding chip is connected with the second interface; the other end of the second interface is used for connecting external display equipment;
the image decoding chip is used for determining target video data according to the identification information of the image coding chip, decoding the target video data and then sending the decoded target video data to the external display equipment.
According to a second aspect of embodiments of the present application, there is provided a transmitter. The transmitter is applied to a wireless image transmission system,
the method comprises the following steps: the device comprises a first interface, an image coding chip and a first Wi-Fi module;
the first interface is used for respectively connecting the image coding chip and external shooting equipment; the other end of the image coding chip is connected with the first Wi-Fi module;
the image coding chip is used for coding video data input by the external shooting equipment and transmitting the coded video data and the identification information of the image coding chip to the receiver through the first Wi-Fi module;
the first Wi-Fi module is used for establishing a connection channel with a receiver in an STA mode.
According to a third aspect of embodiments herein, there is provided a receiver. The receiver is applied to a wireless image transmission system,
the method comprises the following steps: the second Wi-Fi module, the image decoding chip and the second interface;
one end of the image decoding chip is connected with the second Wi-Fi module; the other end of the image decoding chip is connected with the second interface; the other end of the second interface is used for connecting external display equipment;
the second Wi-Fi module is used for establishing a connection channel with at least one transmitter in an AP mode;
the image decoding chip is used for determining target video data according to the identification information of the image coding chip, decoding the target video data and then sending the decoded target video data to the external display equipment.
According to a fourth aspect of embodiments of the present application, there is provided an image transmission system. The image transmission system includes: at least two photographing devices, at least one display device, and any one of the wireless image transmission systems as described in the first aspect of the embodiments of the present application;
a first interface of a transmitter of the wireless image transmission system is connected with the shooting equipment;
and a second interface of the receiver of the wireless image transmission system is connected with the display equipment.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
in the embodiment of the application, a wireless image transmission system is provided, and the Wi-Fi standard is selected on the wireless radio frequency technology. Under the Wi-Fi standard, more than two transmitters are allowed to establish a connecting channel with the same receiver through a Wi-Fi module to perform image transmission, and multiple transmission and one reception under the same channel can be realized, so that channel resources can be greatly saved, and the requirement of multi-station shooting of a user is met.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic view of an application scenario of a conventional wireless image transmission system.
Fig. 2 is a schematic view of an application scenario of a conventional wireless image transmission system when multiple camera positions are set.
Fig. 3 is a schematic structural diagram of a wireless image transmission system according to an exemplary embodiment of the present application.
Fig. 4 is a schematic structural diagram of another wireless image transmission system according to an exemplary embodiment of the present application.
Fig. 5 is a schematic structural diagram of an image transmission system according to an exemplary embodiment of the present application.
It should be noted that, in order to distinguish the transmitter and the receiver of the wireless image transmission system in the prior art from the transmitter and the receiver of the improved wireless image transmission system provided in the embodiments of the present application, the present invention provides a method for transmitting and receiving images. The prior art transmitter (prior) is referenced 2 and the receiver (prior) is referenced 3. While the transmitter of the improved embodiment of the present application is denoted by reference numeral 5 and the receiver is denoted by reference numeral 6.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The wireless image transmission system can transmit video data shot by the shooting equipment to the display equipment in a wireless mode for displaying, thereby greatly simplifying the stay wire work of a shooting site and providing great convenience for users.
Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a conventional wireless image transmission system. A wireless image transmission system generally includes a transmitter (existing) 2 and a receiver (existing) 3. In a specific application, the transmitter (existing) 2 may be connected to the photographing apparatus 1, and the receiver (existing) 3 may be connected to the display apparatus 4. Therefore, after the video data shot by the shooting device 1 is input into the transmitter (existing) 2, the transmitter (existing) 2 can transmit the video data to the receiver (existing) 3 through the wireless radio frequency technology, and the receiver (existing) 3 outputs the video data to the display device 4 to realize wireless image transmission.
When shooting is carried out in a large occasion, a plurality of camera positions are usually arranged. For example, in occasions such as sports events, concerts and the like, the multiple camera positions are arranged, so that the multi-directional viewing angle can be brought to audiences, and the viewing experience of the audiences is greatly improved.
However, the existing wireless image transmission system selects the WHDI standard in terms of wireless radio frequency technology. The WHDI standard enables high quality, non-compressed wireless transmission of video data, but it allows only one transmission and one reception of a single channel, i.e. only one transmitter and one receiver are allowed to establish a wireless connection channel for video data transmission in a single channel. Therefore, as shown in fig. 2, fig. 2 is a schematic view of an application scenario of the conventional wireless image transmission system when multiple camera positions are set. For a scene requiring multiple camera positions, such as camera position 1, camera position 2, and camera position X in fig. 2, the shooting device of each camera position needs to use one wireless image transmission system, and each wireless image transmission system needs to occupy one channel, and when the channel resources are insufficient, some camera positions cannot realize wireless image transmission. Moreover, the channel occupancy rate is too high, and the interference between channels cannot be ignored.
In order to solve the above problem, an embodiment of the present application provides a wireless image transmission system. Referring to fig. 3, fig. 3 is a schematic structural diagram of a wireless image transmission system according to an exemplary embodiment of the present application.
In the embodiment shown in fig. 3, the wireless image transmission system comprises at least two transmitters 5 and one receiver 6. It is understood that the number of the emitters 5 may be configured according to actual needs, for example, three emitters 5 or four emitters 5 may be configured, and the embodiment of the present application is not limited thereto.
The transmitter 5 includes: a first interface 51, an image coding chip 52 and a first Wi-Fi module 53. The receiver 6 includes: a second Wi-Fi module 61, an image decoding chip 62 and a second interface 63.
The first interface 51 may be used for connecting an external photographing apparatus to the outside and for connecting the image encoding chip 52 to the inside. The external photographing apparatus may be various apparatuses capable of photographing video, such as a video camera, a mobile phone, etc. The first interface 51 may specifically be an SDI interface or an HDMI interface, but may also be another type of video interface, for example, in an implementation, the first interface 51 may also be a DVI interface.
It should be noted that in a possible embodiment, the transmitter 5 may comprise a plurality of first interfaces 51. For example, the transmitter 5 may have two first interfaces 51, one first interface 51 being an SDI interface and the other first interface 51 being an HDMI interface. Thus, the user can selectively connect the transmitter 5 and the shooting device through the SDI interface or the HDMI interface, which can be applied to more situations.
One end of the image coding chip 52 is connected to the first interface 51, and the other end can be connected to a first Wi-Fi module 53.
The image encoding chip 52 may encode video data input from an external camera through the first interface 51. It can be understood that, on one hand, video data can be transmitted after being encoded and compressed because the video data has a huge data volume and contains a lot of redundant data; on the other hand, the physical port of the Wi-Fi module generally cannot directly receive the original video data, and needs to be converted into a signal corresponding to the physical port of the Wi-Fi module by an encoding algorithm before the signal can be input into the Wi-Fi module.
The physical port of the Wi-Fi module can be a USB port or a PCIE port or a network interface. In one embodiment, if the physical port of the first Wi-Fi module 53 is a network interface and a TCP protocol is used in communication, the image coding chip 52 needs to convert video data into a data format conforming to the TCP protocol and then input the video data into the first Wi-Fi module 53 when coding the video data. Certainly, the Wi-Fi module may also be provided with a plurality of physical ports, and the physical port may be a USB port, or may also be a network interface or a PCIE port.
The first Wi-Fi module 53 may enable conversion between video data and radio frequency signals. After the first Wi-Fi module 53 receives the video data processed by the image coding chip 52, the first Wi-Fi module 53 may convert the received video data into a Wi-Fi signal and transmit the Wi-Fi signal to the receiver 6.
The second Wi-Fi module 61 of the receiver 6 is connected to the image decoding chip 62, and the other end of the image decoding chip 62 may be connected to the second interface 63. The other end of the second interface 63 may be connected to an external display device. The external display device is a device having a display screen or a display function, and may specifically be a monitor, a display, a projection, or the like, and in the case where the physical interface is suitable for connection, may also be a mobile terminal with a display screen.
The second Wi-Fi module 61 of the receiver 6 may establish communication with the first Wi-Fi module 53 of the transmitter 5 so that video data transmitted by the transmitter 5 in the form of Wi-Fi signals may be received. The received video data may be transmitted to the image decoding chip 62 through its physical port.
It should be noted that the wireless image transmission system provided in the embodiment of the present application includes a plurality of transmitters 5 and a receiver 6. When the receiver 6 receives signals of more than two transmitters 5 at the same time, the second Wi-Fi module 61 of the receiver 6 needs to operate in the AP mode, and the first Wi-Fi module 53 of each transmitter 5 needs to operate in the STA mode. Of course, if the user only uses one of the transmitters 5, that is, only has a demand for use of one transmission and one reception, the first Wi-Fi module 53 of the transmitter 5 may be operated in the AP mode, and the second Wi-Fi module 61 of the receiver 6 may be operated in the STA mode.
The video data it transmits over Wi-Fi is independent for each transmitter 5. That is, even though each transmitter 5 transmits its own video data through the same channel, the video data of each channel is still independent and cannot be mixed. Accordingly, although the receiver 6 is capable of receiving video data transmitted by all the transmitters 5 through the same channel, it is also necessary to distinguish between video data transmitted by different transmitters 5.
Based on the above problem, the image encoding chip 52 of the transmitter 5 may transmit the encoded video data and the identification information of the image encoding chip 52 to the receiver 6 through the first Wi-Fi module 53 after encoding the video data. Accordingly, the image decoding chip 62 may determine the target video data according to the identification information of the image encoding chip 52, decode the target video data, and send the decoded target video data to the external display device.
The video data transmitted by different transmitters 5 can be distinguished by the identification information. The specific implementation manner of the identification information may be various, such as an assigned IP address of the transmitter 5, or may be preset identification data uniquely corresponding to a certain transmitter 5.
There are various ways in which the image encoding chip 52 combines the encoded video data with the identification information configured thereto. As an alternative, the identification information may be inserted into a specific position of the video data, such as a header or a trailer of the video data, as a header or a trailer. In another possible implementation, the identification information and the video data may be encapsulated in a container in a certain manner by setting the encapsulation format of the video data.
The image decoding chip 62 may be pre-configured with a specific identifier. The specified identification is any one of identification information corresponding to the transmitter 5. To determine the target video data to be decoded by the image decoding chip 62, the image decoding chip 62 needs to determine whether the received identification information of the image encoding chip 52 matches a pre-configured specified identification thereof.
For ease of understanding, a specific example is provided below. In this embodiment, the identification information is specifically an IP address assigned to the transmitter 5, and the image encoding chip 52 inserts the IP address as a first packet into the video data. First, the image decoding chip 62 needs to determine the target video data it needs. Specifically, the image decoding chip 62 may analyze the first packet of the video data sent by each transmitter 5 one by one, obtain identification information (a first IP address) corresponding to the video data, compare the obtained first IP address with a pre-configured specified identification (a second IP address), and if the comparison result is the same, determine that the video data is the target video data required by the video data.
This can be achieved by changing the specific identification of the configuration of the image decoding chip 62 when video data of different transmitters 5 is required. For example, the above-described specific embodiment can be used, and when there are a plurality of camera positions, the first transmitter 5 corresponds to the picture of the first camera position, and the second transmitter 5 corresponds to the picture of the second camera position. The image decoding chip 62 is configured to specify the IP address assigned to the identifier of the first transmitter 5, and the external display device to which the receiver 6 is connected can display the picture of the first camera position. When the picture of the second camera position needs to be displayed, the designated identifier configured by the image decoding chip 62 may be changed to be the IP address allocated to the second transmitter 5, and then the image decoding chip 62 will confirm that the video data sent by the second transmitter 5 is the target video data, thereby realizing the switching of the picture between different camera positions.
The second interface 63 of the receiver 6 is an SDI interface or an HDMI interface, like the first interface 51 of the transmitter 5. Also, the receiver 6 may be provided with a plurality of second interfaces 63, and each second interface 63 may be an SDI interface or an HDMI interface. In one implementation, the transmitter 5 may be configured with two first interfaces 51, respectively an SDI interface and an HDMI interface, and the receiver 6 may be configured with two second interfaces 63, respectively an SDI interface and an HDMI interface. When the method is applied, a user can access an external shooting device into the transmitter 5 through an SDI interface or an HDMI interface on the transmitter 5 side, output the external shooting device to one monitor through the SDI interface on the receiver 6 side, and output the external shooting device to the other monitor through the HDMI interface, so that the same picture can be displayed on the two monitors.
It should be noted that the wireless image transmission system provided in the embodiment of the present application can transmit data in both directions, that is, data can be transmitted from the transmitter 5 to the receiver 6, and data can also be transmitted from the receiver 6 to the transmitter 5. When data is transmitted from receiver 6 to transmitter 5, image decoding chip 62 of receiver 6 may take the role of image encoding chip 52 to encode video data, and second Wi-Fi module 61 may also take the role of first Wi-Fi module 53 as a transmitting end. Accordingly, the first Wi-Fi module 53 of the transmitter 5 may serve as a receiving end, and the image encoding chip 52 may serve as an image decoding chip 62 to decode the video data. Thus, in one application, video data may be transferred to the transmitter 5 via the receiver 6 and dumped into the memory of the capture device.
Of course, in addition to the bi-directional transmission of video data, other signals or data may be transmitted between the transmitter 5 and the receiver 6, so long as a communication channel is established between the two for the relevant interaction.
The above is a description of a wireless image transmission system provided by the present application according to an exemplary embodiment. In the wireless image transmission system, the Wi-Fi standard is selected on the radio frequency technology. Under the Wi-Fi standard, more than two transmitters 5 are allowed to establish a connecting channel with the same receiver 6 through a Wi-Fi module to transmit images, and multiple transmission and one reception under the same channel can be realized, so that channel resources can be greatly saved, and the requirement of multi-station shooting of a user is met. Moreover, as the occupancy rate of the channels is reduced, the overlapping part between the used channels is reduced, and the interference of the channels can be relieved to a certain extent. In addition, the cost of the user can be reduced, each camera position is not required to be provided with a set of wireless image transmission system, and the field wire pulling work is simplified.
The wireless image transmission system in the above-described various implementations can be further improved. Referring to fig. 4, fig. 4 is a schematic structural diagram of another wireless image transmission system according to an exemplary embodiment of the present application.
In the embodiment shown in fig. 4, the wireless image transmission system comprises at least two transmitters 5 and one receiver 6. For a detailed description of the transmitter 5, reference is made to the foregoing description and no further description is provided here.
Considering that in the case of a multi-camera position, the user is likely to need to display the pictures of a plurality of camera positions at the same time, a plurality of image decoding chips 62 and a plurality of second interfaces 63 may be provided for the receiver 6. One end of each image decoding chip 62 is connected to the second Wi-Fi module 61, and the other end is connected to a second interface 63.
The pre-configured specific identifier of each image decoding chip 62 may be different in specific applications. For example, continuing with the foregoing description of the specific embodiment, in one application, the first image decoding chip 62 may configure the assigned IP address of the first transmitter 5 as a specific identifier, and the second image decoding chip 62 may configure the assigned IP address of the second transmitter 5 as a specific identifier. In the image transmission process, the first image decoding chip 62 can determine, by comparison, that the video data sent by the first transmitter 5 is the target video data, and the second image decoding chip 62 can determine, by comparison, that the video data sent by the second transmitter 5 is the target video data, thereby realizing real-time display of the first shot picture and the second shot picture.
Reference may be made to the previous description regarding the first interface 51 and the second interface 63. In this embodiment, one image decoding chip 62 may be connected to a plurality of second interfaces 63, and the second interfaces may be SDI interfaces or HDMI interfaces. The interface type of each second interface 63 may be different or the same.
Further, since the input/output ports of the external photographing device and the external display device are typically serial data ports, and the input/output ports of the image encoding chip 52 and the image decoding chip 62 may be parallel data ports, a serial-to-parallel/serial conversion module may be provided to perform data type conversion.
Specifically, the transmitter 5 may further include a first serial-to-parallel-serial conversion module 54, and the first serial-to-parallel-serial conversion module 54 is connected between the first interface 51 and the image coding chip 52. The receiver 6 may further include a second serial-to-parallel/parallel-to-serial conversion module 64, and the second serial-to-parallel/parallel-to-serial conversion module 64 is connected between the image decoding chip 62 and the second interface 63. In the present embodiment, the receiver 6 has a plurality of image decoding chips 62 and a plurality of second interfaces 63, and accordingly, a plurality of second serial-to-parallel/serial-to-serial conversion modules 64 are also required.
As previously described, bi-directional transmission is possible between the transmitter 5 and the receiver 6. In different transmission directions, the serial-to-parallel/parallel-to-serial conversion module can be used for converting serial data into parallel data and can also be used for converting the parallel data into serial data. For example, when transmitting from the transmitter 5 to the receiver 6, the first serial-to-parallel-serial conversion module 54 may be configured to convert serial data input from an external photographing device into parallel data to be input to the image encoding chip 52, and the second serial-to-parallel-serial conversion module 64 may be configured to convert parallel data output from the image decoding chip 62 into serial data to be output to an external display device. While the process of serial-to-parallel data conversion is reversed when transmitting from receiver 6 to transmitter 5.
For the description of other parts of this embodiment, reference may be made to the description of the corresponding parts in the foregoing description, and further description is omitted here.
The above is a description of another wireless image transmission system provided by the present application according to an exemplary embodiment. In the wireless image transmission system, the receiver is provided with a plurality of image decoding chips 62 and a plurality of second interfaces 63, and each image decoding chip 62 can be configured with different designated identifiers to decode video data of different camera positions, so that pictures of different camera positions can be transmitted and displayed simultaneously.
The embodiment of the application also provides a transmitter which is applied to a wireless image transmission system. The transmitter includes: the image coding device comprises a first interface, an image coding chip and a first Wi-Fi module.
The first interface is used for respectively connecting the image coding chip and external shooting equipment; the other end of the image coding chip is connected with the first Wi-Fi module.
The image coding chip is used for coding the video data input by the external shooting equipment and transmitting the coded video data and the identification information of the image coding chip to the receiver through the first Wi-Fi module.
The first Wi-Fi module is used for establishing a connection channel with a receiver in an STA mode.
The embodiment of the application also provides a receiver which is applied to a wireless image transmission system. The receiver includes: the second Wi-Fi module, the image decoding chip and the second interface.
One end of the image decoding chip is connected with the second Wi-Fi module; the other end of the image decoding chip is connected with the second interface; the other end of the second interface is used for connecting an external display device.
The second Wi-Fi module is configured to establish a connection channel with at least one transmitter in AP mode.
The image decoding chip is used for determining target video data according to the identification information of the image coding chip, decoding the target video data and then sending the decoded target video data to the external display equipment.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an image transmission system according to an exemplary embodiment of the present application. The image transmission system includes: at least two shooting devices 1, at least one display device 4 and any one wireless image transmission system provided by the embodiment of the application. In the embodiment shown in fig. 5, the image transmission system includes three photographing apparatuses 1, three display apparatuses 4, and a wireless image transmission system including three transmitters 5.
The first interface 51 of the transmitter 5 of the wireless image transmission system is connected with the shooting device 1;
the second interface 63 of the receiver 6 of the wireless image transmission system is connected to the display device 4.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A wireless image transmission system, comprising:
at least two transmitters and one receiver;
the transmitter includes: the device comprises a first interface, an image coding chip and a first Wi-Fi module; the receiver includes: the second Wi-Fi module, the image decoding chip and the second interface;
the first interface is used for respectively connecting the image coding chip and external shooting equipment; the other end of the image coding chip is connected with the first Wi-Fi module;
the image coding chip is used for coding video data input by the external shooting equipment and transmitting the coded video data and the identification information of the image coding chip to the receiver through the first Wi-Fi module;
the second Wi-Fi module is used for establishing a connection channel with at least one first Wi-Fi module in an STA mode in an AP mode;
one end of the image decoding chip is connected with the second Wi-Fi module; the other end of the image decoding chip is connected with the second interface; the other end of the second interface is used for connecting external display equipment;
the image decoding chip is used for determining target video data according to the identification information of the image coding chip, decoding the target video data and then sending the decoded target video data to the external display equipment.
2. The wireless image transmission system according to claim 1, wherein the receiver has a plurality of the image decoding chips and a plurality of the second interfaces.
3. The wireless image transmission system according to claim 2, wherein the transmitter has a plurality of the first interfaces; the first interface is an SDI interface or an HDMI interface;
one image decoding chip is connected with a plurality of second interfaces; the second interface is an SDI interface or an HDMI interface.
4. The wireless image transmission system according to claim 1,
the transmitter further includes: a first serial-to-parallel/parallel-to-serial conversion module;
the first serial-to-parallel/parallel-to-serial conversion module is connected between the first interface and the image coding chip;
the receiver further comprises: a second serial-to-parallel/parallel-to-serial conversion module;
the second serial-to-parallel/parallel-to-serial conversion module is connected between the image decoding chip and the second interface.
5. The wireless image transmission system according to claim 1, wherein the identification information is an IP address to which the transmitter is assigned.
6. The wireless image transmission system of claim 1, wherein the physical port of the first Wi-Fi module and the physical port of the second Wi-Fi module are USB ports or PCIE ports or network interfaces.
7. The wireless image transmission system according to claim 1,
the image decoding chip is pre-configured with a designated identifier, and determines target video data by determining whether the received identifier information of the image coding chip is matched with the designated identifier.
8. A transmitter, for use in a wireless image transmission system,
the method comprises the following steps: the device comprises a first interface, an image coding chip and a first Wi-Fi module;
the first interface is used for respectively connecting the image coding chip and external shooting equipment; the other end of the image coding chip is connected with the first Wi-Fi module;
the image coding chip is used for coding video data input by the external shooting equipment and transmitting the coded video data and the identification information of the image coding chip to the receiver through the first Wi-Fi module;
the first Wi-Fi module is used for establishing a connection channel with a receiver in an STA mode.
9. A receiver, for use in a wireless image transmission system,
the method comprises the following steps: the second Wi-Fi module, the image decoding chip and the second interface;
one end of the image decoding chip is connected with the second Wi-Fi module; the other end of the image decoding chip is connected with the second interface; the other end of the second interface is used for connecting external display equipment;
the second Wi-Fi module is used for establishing a connection channel with at least one transmitter in an AP mode;
the image decoding chip is used for determining target video data according to the identification information of the image coding chip, decoding the target video data and then sending the decoded target video data to the external display equipment.
10. An image transmission system, comprising: at least two photographing devices, at least one display device, and the wireless image transmission system according to any one of claims 1 to 7;
a first interface of a transmitter of the wireless image transmission system is connected with the shooting equipment;
and a second interface of the receiver of the wireless image transmission system is connected with the display equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020233014.9U CN211702234U (en) | 2020-02-28 | 2020-02-28 | Wireless image transmission system, transmitter, receiver and image transmission system |
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| CN202020233014.9U CN211702234U (en) | 2020-02-28 | 2020-02-28 | Wireless image transmission system, transmitter, receiver and image transmission system |
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| WO2023152788A1 (en) * | 2022-02-08 | 2023-08-17 | 日本電信電話株式会社 | System, device and method for wirelessly transmitting media data |
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