CN211237682U

CN211237682U - LED display controller

Info

Publication number: CN211237682U
Application number: CN202020196607.2U
Authority: CN
Inventors: 苟超; 韩丹
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-08-11
Anticipated expiration: 2030-02-20

Abstract

The embodiment of the utility model provides a LED display controller is related to, for example include: an embedded processor; the nonvolatile memory is electrically connected with the embedded processor; the image processor is electrically connected with the embedded processor; the video input interface is electrically connected with the image processor; an Ethernet interface; a physical layer transceiver electrically connected between the Ethernet interface and the image processor; the daughter card interface is electrically connected with the embedded processor and is used for connecting a mobile communication module; and the first SIM card connector and the second SIM card connector are respectively and electrically connected with the daughter card interface. The embodiment of the utility model provides a two SIM card connectors set up and can support 4G network and 5G network simultaneously.

Description

LED display controller

Technical Field

The utility model relates to a accuse and demonstration technical field are broadcast to the media, especially relate to a LED display controller.

Background

In the technical field of LED display screen control, the LED display screen control system can be divided into a synchronous control LED display screen system and an asynchronous control LED display screen system according to different control modes. The synchronous control LED display screen system is used for mapping a picture displayed on a PC (personal computer) to an LED display screen in real time for displaying, and comprises the PC, a sending card, a receiving card and the LED display screen which are sequentially connected. The asynchronous control LED display screen system is characterized in that media to be played are placed on an LED display controller such as an asynchronous LED display control card through a U disk, a serial port, an SD card or a network, the LED display controller is equivalent to the functions of a PC (personal computer) and a sending card in the synchronous control LED display screen system and can perform control display by itself, and the media are not required to be externally connected with the PC during playing.

With the rapid development of LED display technology, there is proposed an LED display controller capable of switchably operating in a synchronous mode or an asynchronous mode; the LED display controller is only provided with a single SIM card connector to support The 4G network, however, with The rapid development of communication Technology, The 4th Generation mobile communication Technology (4G) has become difficult to meet The user's requirements, especially The user's requirements for higher network speed and lower network delay. With this, The 5th Generation mobile communication Technology (5G) is gradually emerging, so how to enable The LED display controller to support both The 4G network and The 5G network is a technical problem to be solved. In addition, the LED display controller typically adopts an ARM + single FPGA architecture, and the single FPGA needs to have multiple functions of accessing a synchronous video source, data conversion, and data packing and output according to an ethernet protocol, so that the performance requirement on the FPGA is high, the modular design is not facilitated, and the extension of the loaded area is limited.

Disclosure of Invention

To overcome at least some of the deficiencies and inadequacies in the related art, embodiments of the present invention provide an improved LED display controller.

Specifically, the embodiment of the utility model provides a LED display controller, include: an embedded processor; the nonvolatile memory is electrically connected with the embedded processor; the image processor is electrically connected with the embedded processor; the video input interface is electrically connected with the image processor; a first Ethernet interface; a first physical layer transceiver electrically connected between the first Ethernet interface and the image processor; the daughter card interface is electrically connected with the embedded processor and is used for connecting a mobile communication module; and the first SIM card connector and the second SIM card connector are respectively and electrically connected with the daughter card interface.

The LED display controller of the present embodiment is provided with a dual SIM card connector, which is capable of supporting both 4G network and 5G network.

In an embodiment of the present invention, the image processor includes a first programmable logic device and a second programmable logic device electrically connected to the first programmable logic device, the first programmable logic device is electrically connected to the embedded processor, the video input interface is electrically connected to the first programmable logic device, and the first physical layer transceiver is electrically connected between the first ethernet interface and the second programmable logic device; the LED display controller further comprises: and the asynchronous transfer switch is electrically connected with the embedded processor or the first programmable logic device.

The image processor of the embodiment adopts the first programmable logic device and the second programmable logic device (namely, two-stage programmable logic devices) which are electrically connected to carry out division and cooperation, so that the performance requirement on the programmable logic devices can be reduced, and the model selection cost of the programmable logic devices can be reduced; moreover, the programmable logic device is arranged in a grading way, so that the modular design and the load area extension of a circuit are facilitated.

In an embodiment of the present invention, the video input interface is a digital video interface, the LED display controller further includes a video decoder, and the video input interface is electrically connected to the first programmable logic device through the video decoder; and the embedded processor, the non-volatile memory, the first programmable logic device, the video input interface, the video decoder, the second programmable logic device, the first ethernet interface, the first physical layer transceiver, the daughter card interface, the first SIM card connector, and the second SIM card connector are disposed on a single circuit board.

In an embodiment of the present invention, the digital video interface is an HDMI interface or a DVI interface.

In an embodiment of the present invention, the LED display controller further comprises a video output interface and a video encoder; the video encoder is electrically connected between the first programmable logic device and the video output interface, and the video output interface is used as a video loop-out interface or a video pre-monitoring interface.

In an embodiment of the present invention, the LED display controller further comprises a first network transformer, wherein the first ethernet interface is electrically connected to the first physical layer transceiver through the first network transformer.

In an embodiment of the present invention, the image processor further includes: the third programmable logic device is electrically connected with the first programmable logic device; and the LED display controller further comprises: a second physical layer transceiver electrically connected to the third programmable logic device; a second Ethernet interface; and a second network transformer electrically connected between the second physical layer transceiver and the second ethernet interface.

In an embodiment of the present invention, the LED display controller further includes: a third Ethernet interface; a third physical layer transceiver electrically connected between the embedded processor and the third Ethernet interface; and the USB interface is electrically connected with the embedded processor.

In an embodiment of the present invention, the LED display controller further includes: the mobile communication module is inserted into the daughter card interface; a plurality of antenna interfaces electrically connected to the mobile communication module and each electrically connected to the mobile communication module, for example, a Sub-Miniature-a (class a) interface; and a plurality of antennas respectively connected to the plurality of antenna interfaces.

In one embodiment of the present invention, the mobile communication module comprises a baseband processing module, a 4G signal modem, a 5G signal modem, and a plurality of splitters; the 4G signal modem and the 5G signal modem are respectively and electrically connected with the baseband processing module, each antenna in the plurality of antennas is electrically connected with the 4G signal modem and the 5G signal modem through a corresponding antenna interface and a corresponding splitter, and the 4G signal modem and the 5G signal modem are respectively used for processing 4G signals and 5G signals.

To sum up, the embodiment of the present invention provides an above-mentioned technical scheme can have following one or more beneficial effect: the LED display controller of the present embodiment is provided with a dual SIM card connector, which is capable of supporting both 4G network and 5G network. In addition, the image processor adopts the first programmable logic device and the second programmable logic device (namely two-stage programmable logic devices) which are electrically connected to carry out division work cooperation, so that the performance requirement on the programmable logic devices can be reduced, and the model selection cost of the programmable logic devices can be reduced; moreover, the programmable logic devices are arranged in a grading manner, so that the modular design of a circuit and the extension of a loading area are facilitated, for example, more programmable logic devices such as the second programmable logic device and the third programmable logic device can be arranged on the output side of the first programmable logic device, and therefore 130 ten thousand LED lamp points can be loaded, 230 ten thousand LED lamp points can be loaded, and even higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below 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.

Fig. 1 is a schematic structural diagram of a first LED display controller according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second LED display controller according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a third LED display controller according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fourth LED display controller according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a fifth LED display controller according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a sixth LED display controller according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a seventh LED display controller according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of an eighth LED display controller according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of an LED display controller according to an embodiment of the present invention.

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.

Referring to fig. 1, an embodiment of the present invention provides an LED display controller 10, including: the embedded processor 11, the nonvolatile memory 12, the first programmable logic device 13, the video input interface 14a, the asynchronous/asynchronous switch 15, the second programmable logic device 16a, the first physical layer transceiver 17a, the first ethernet interface 18a, the daughter card interface 19, the first SIM (Subscriber identity Module) card connector 20a, and the second SIM card connector 20 b. It is worth mentioning that the first programmable logic device 13 and the second programmable logic device 16a constitute a specific embodiment of an image processor.

The embedded processor 11 is, for example, an ARM processor, which is typically installed with an embedded operating system such as an Android system or other operating systems such as Linux operation, etc. For example, as shown in fig. 9, a commercially available RK3288 processor may be used, but the embodiments of the present invention are not limited thereto.

The non-volatile memory 12 is electrically connected to the embedded processor 11, and may be, for example, an 8G flash memory (as shown in fig. 9) or other flash memory with storage capacity. The non-volatile memory 12 of the present embodiment may be used to store a local video source or other local media.

The first programmable logic device 13 is electrically connected to the embedded processor 11, and for example, a commercially available FPGA chip such as XC7K325T-2FFG900I chip shown in fig. 9, but the embodiment of the present invention is not limited thereto. When the first programmable logic device 13 of this embodiment operates in the asynchronous mode, it can process the local media such as the local video source provided by the embedded processor 11, for example, perform scaling processing and then output the processed local media.

The video input Interface 14a is electrically connected to the first programmable logic device 13, and is, for example, a Digital video Interface such as an HDMI (High Definition Multimedia Interface) or a DVI (Digital Visual Interface), but the embodiment of the present invention is not limited thereto. The video input interface 14a of this embodiment may be externally connected with a video source (or referred to as a synchronous video source) and send the accessed video source to the first programmable logic device 13, so that the first programmable logic device 13 performs processing, such as scaling processing, on the accessed video source and outputs the processed video source when operating in a synchronous mode.

The asynchronous/synchronous switch 15 is electrically connected to the first programmable logic device 13, which is a button, for example, and can trigger the first programmable logic device 13 to switchably operate in a synchronous mode or an asynchronous mode in response to a user pressing operation. Of course, the asynchronous/synchronous switch 15 can be electrically connected to the embedded processor 11 instead. In addition, in other embodiments, the asynchronous/synchronous switch 15 may be omitted, and the upper computer software issues an instruction to the embedded processor 11 to trigger the first programmable logic device 13 to switch between the synchronous mode and the asynchronous mode.

The second programmable logic device 16a is electrically connected to the first programmable logic device 13, and can perform data conversion, and perform operations such as packaging and outputting according to an ethernet protocol on a video source output by the first programmable logic device 13. For example, the second programmable logic device 16a of the present embodiment uses a commercially available FPGA chip, such as an EP3C16F484 series chip shown in fig. 9, but the present invention is not limited thereto.

The first ethernet interface 18a is, for example, an RJ45 interface, and the number thereof may be multiple, such as two or four, but the embodiment of the present invention is not limited thereto. It is worth mentioning that when the number of the first ethernet interfaces 18a is two, the loaded area of the LED display controller 10 can reach 130 ten thousand LED lamp points; when the number of the first ethernet interfaces 18a is four, the loaded area of the LED display controller 10 may reach 230 ten thousand LED lamp points. Furthermore, when the first ethernet interface 18a is an RJ45 interface, it can be connected to a display control card (or called scan card, receive card or module controller) at the back end for driving and controlling the LED display through a network cable.

The first physical layer transceiver 17a is electrically connected between the first ethernet interface 18a and the second programmable logic device 16a and may comprise a multi-way, such as a two-way or four-way gigabit PHY. Furthermore, the first PHY transceiver 17a may employ a commercially available AR8031 PHY chip (e.g., as shown in fig. 9) or other ethernet PHY chip.

A daughter card interface 19 electrically connects the embedded processor 11, such as a PCI-E (peripheral component Interconnect Express) interface shown in fig. 9; so that the LED display controller 10 of the present embodiment can plug in a mobile communication module such as a mobile communication module supporting both a 4G network and a 5G network.

The first and second SIM card connectors 20a and 20b are electrically connected to the daughter card interface 19, respectively, such as the 4G and 5G SIM connectors shown in fig. 9, respectively.

In summary, the LED display controller 10 of the present embodiment is provided with dual SIM card connectors (e.g., 20a and 20b), which can simultaneously support multiple mobile networks, such as 4G network and 5G network. In addition, the image processor adopts the first programmable logic device 13 and the second programmable logic device 16a (namely, two-stage programmable logic devices) which are electrically connected to perform division work cooperation, which can reduce the performance requirement on the programmable logic devices, thereby reducing the model selection cost of the programmable logic devices; moreover, the programmable logic device is arranged in a grading way, so that the modular design and the load area extension of a circuit are facilitated.

Referring to fig. 2, as an embodiment of the present invention, the LED display controller 10 shown in fig. 1 may further include: the video decoder 21a is, for example, the HDMI receiver ADV7612 shown in fig. 9, but the embodiment of the present invention is not limited thereto. Wherein the video input interface 14a is electrically connected to the first programmable logic device 13 through the video decoder 21 a. Furthermore, as can be seen from fig. 2, the embedded processor 11, the non-volatile memory 12, the first programmable logic device 13, the video input interface 14a, the second programmable logic device 16a, the first physical layer transceiver 17a, the first ethernet interface 18a, the daughter card interface 19, the first SIM card connector 20a, the second SIM card connector 20b and the video decoder 21a are disposed on a single circuit board 100, so that the circuit structure of the LED display controller 10 is more compact.

Referring to fig. 3, as a specific embodiment of the present invention, the LED display controller shown in fig. 2 may further include: a video output interface 14b and a video encoder 21 b. The video encoder 21b is electrically connected between the first programmable logic device 13 and the video output interface 14 b. The video output interface 14b is, for example, a digital video interface such as an HDMI interface or a DVI interface, and the video encoder 21b adopts, for example, an HDMI transmitter ADV7511 shown in fig. 9, but the embodiment of the present invention is not limited thereto. The video output interface 14b of the present embodiment can be used as a video loop-out interface or a video pre-monitoring interface, for example. Specifically, when the first programmable logic device 13 is operating in the synchronous mode, a synchronous video source input to the first programmable logic device 13 via the video input interface 14a can be looped out to another LED display controller; still alternatively, when the first programmable logic device 13 is operating in the asynchronous mode, the local video source provided by the embedded processor 11 may be output to a display device for pre-monitoring.

Referring to fig. 4, as an embodiment of the present invention, the LED display controller 10 shown in fig. 1 may further include a first network transformer 22a, so that the first ethernet interface 18a is electrically connected to the first physical layer transceiver 17a through the first network transformer 22 a. Here, the first network transformer 22a may comprise a single or a plurality of ethernet transformer chips, for example, when the number of the first ethernet interfaces 18a is two, the first network transformer 22a comprises a single ethernet transformer chip such as a DG36001G type dual port gigabit network transformer chip; when the number of the first ethernet interfaces 18a is four, the first network transformer 22a includes two ethernet transformer chips. Furthermore, each of the ethernet transformer chips may be integrated with two ethernet interfaces, such as RJ45 interfaces, or they may be separately provided.

Referring to fig. 5, as a specific embodiment of the present invention, the LED display controller shown in fig. 4 may further include: a third programmable logic device 16b, a second physical layer transceiver 17b, a second ethernet interface 18b, and a second network transformer 22 b. The third programmable logic device 16b is electrically connected to the first programmable logic device 13, and can perform data conversion on another video source output by the first programmable logic device 13, and perform operations such as packaging and outputting according to an ethernet protocol. For example, the third programmable logic device 16b of the present embodiment uses a commercially available FPGA chip such as an EP3C16F484 series chip (for example, as shown in fig. 9), but the present invention is not limited thereto. The second physical layer transceiver 17b is electrically connected to the third programmable logic device 16b, which may comprise a multi-way, such as a two-way or four-way gigabit PHY. Furthermore, the second physical layer transceiver 17b may employ a commercially available AR8031 PHY chip (e.g., as shown in fig. 9) or other ethernet PHY chip. The second ethernet interface 18b is for example two or four RJ45 interfaces or another number of RJ45 interfaces. The second network transformer 22b is electrically connected between the second physical layer transceiver 17b and the second ethernet interface 18b, which for example comprises a single or multiple ethernet transformer chips such as DG36001G (e.g., shown in fig. 9). It should be noted that the first programmable logic device 13, the second programmable logic device 16a and the third programmable logic device 16b constitute another specific embodiment of the image processor.

Referring to fig. 6, as a specific embodiment of the present invention, the LED display controller shown in fig. 5 may further include: a third physical layer transceiver 23, a third ethernet interface 24 and a USB interface 25. The third PHY transceiver 23 is electrically connected between the embedded processor 11 and the third ethernet interface 24, and may employ a commercially available hundred mega PHY chip LAN8720A or a giga PHY chip (for example, as shown in fig. 9), but the embodiment of the present invention is not limited thereto. The third ethernet interface 24 is, for example, an RJ45 port. In this embodiment, the third ethernet interface 24 can be used as a communication interface between the LED display controller and an upper computer, such as a PC. The USB interface 25 is electrically connected to the embedded processor 11. The USB interface 25 of the present embodiment can be externally connected to a USB disk, for example, to support media import and play.

Referring to fig. 7, as an embodiment of the present invention, the LED display controller 10 shown in fig. 1 may further include: a mobile communication module 26, a plurality of antenna interfaces 27 and a plurality of antennas 28. Wherein the mobile communication module 26 is plugged into the daughter card interface 19, and the plurality of antennas 28 are respectively connected to the mobile communication module 26 through the plurality of antenna interfaces 27. For example, the mobile communication module 26 includes a baseband processing module, a 4G signal modem, a 5G signal modem, and a plurality of splitters; the 4G signal modem and the 5G signal modem are electrically connected to the baseband processing module, respectively, each of the plurality of antennas 28 is electrically connected to the 4G signal modem and the 5G signal modem through a corresponding one of the antenna interfaces 27 and a corresponding one of the splitters, and the 4G signal modem and the 5G signal modem are used for processing 4G signals and 5G signals, respectively. Each antenna 28 of the present embodiment is, for example, an external antenna, and accordingly each antenna interface 27 is, for example, an SMA interface. It will be appreciated that in other embodiments, each antenna 28 may also be a PCB (Printed Circuit Board) Board-mounted antenna.

Referring to fig. 8, as an embodiment of the present invention, the LED display controller 10 shown in fig. 1 may further include: a four-wire sensor interface 29 electrically connecting the embedded processor 11. The four-wire sensor interface 29 is here adapted for connection to a four-pin brightness sensor, a four-pin temperature and humidity sensor or a four-pin smoke sensor.

In addition, it should be understood that the foregoing embodiments are merely exemplary of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structures, and not departing from the purpose of the present invention.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. An LED display controller, comprising:

an embedded processor;

the nonvolatile memory is electrically connected with the embedded processor;

the image processor is electrically connected with the embedded processor;

the video input interface is electrically connected with the image processor;

a first Ethernet interface;

a first physical layer transceiver electrically connected between the first Ethernet interface and the image processor;

the daughter card interface is electrically connected with the embedded processor and is used for connecting a mobile communication module;

and the first SIM card connector and the second SIM card connector are respectively and electrically connected with the daughter card interface.

2. The LED display controller of claim 1, wherein the image processor comprises a first programmable logic device and a second programmable logic device electrically connected to the first programmable logic device, the first programmable logic device electrically connected to the embedded processor, the video input interface electrically connected to the first programmable logic device, the first physical layer transceiver electrically connected between the first ethernet interface and the second programmable logic device; the LED display controller further comprises: and the asynchronous transfer switch is electrically connected with the embedded processor or the first programmable logic device.

3. The LED display controller of claim 2, wherein the video input interface is a digital video interface, the LED display controller further comprises a video decoder, and the video input interface is electrically connected to the first programmable logic device through the video decoder; and the embedded processor, the non-volatile memory, the first programmable logic device, the video input interface, the video decoder, the second programmable logic device, the first ethernet interface, the first physical layer transceiver, the daughter card interface, the first SIM card connector, and the second SIM card connector are disposed on a single circuit board.

4. The LED display controller of claim 3, wherein the digital video interface is an HDMI interface or a DVI interface.

5. The LED display controller of claim 3, further comprising a video output interface and a video encoder; the video encoder is electrically connected between the first programmable logic device and the video output interface, and the video output interface is used as a video loop-out interface or a video pre-monitoring interface.

6. The LED display controller of claim 2, further comprising a first network transformer, wherein the first ethernet interface electrically connects the first physical layer transceiver through the first network transformer.

7. The LED display controller of claim 2, wherein the image processor further comprises: the third programmable logic device is electrically connected with the first programmable logic device; and the LED display controller further comprises:

a second physical layer transceiver electrically connected to the third programmable logic device;

a second Ethernet interface;

a second network transformer electrically connected between the second physical layer transceiver and the second Ethernet interface.

8. The LED display controller of claim 2, further comprising:

a third Ethernet interface;

a third physical layer transceiver electrically connected between the embedded processor and the third Ethernet interface;

and the USB interface is electrically connected with the embedded processor.

9. The LED display controller of claim 2, further comprising:

the mobile communication module is inserted into the daughter card interface;

a plurality of antenna interfaces electrically connected to the mobile communication module; and

and the plurality of antennas are respectively connected with the plurality of antenna interfaces.

10. The LED display controller of claim 9, wherein the mobile communication module comprises a baseband processing module, a 4G signal modem, a 5G signal modem, and a plurality of splitters; the 4G signal modem and the 5G signal modem are respectively and electrically connected with the baseband processing module, each antenna in the plurality of antennas is electrically connected with the 4G signal modem and the 5G signal modem through a corresponding antenna interface and a corresponding splitter, and the 4G signal modem and the 5G signal modem are respectively used for processing 4G signals and 5G signals.