CN210578528U

CN210578528U - Display box and wireless transceiver

Info

Publication number: CN210578528U
Application number: CN201921709436.2U
Authority: CN
Inventors: 冯思杭; 韦桂锋
Original assignee: Xian Novastar Electronic Technology Co Ltd
Current assignee: Xian Novastar Electronic Technology Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-05-19
Anticipated expiration: 2029-10-12

Abstract

The embodiment of the utility model provides a display box body and wireless transceiver thereof is related to. The display box body comprises: a case frame having a module mounting surface and a mounting portion located on a back side of the module mounting surface; the LED display panel is arranged on the module mounting surface and comprises one or more LED modules; the wireless transceiver is arranged on the mounting part and comprises a full-duplex wireless transceiver chip; and the module control card is arranged on the box body frame and is positioned on the back side of the module mounting surface, wherein the module control card is electrically connected with the LED display panel and is electrically connected with the wireless transceiver through a cable. The embodiment of the utility model provides a can realize showing the wireless transmission between the box.

Description

Display box and wireless transceiver

Technical Field

The utility model relates to a show and wireless transmission technical field, especially relate to a show box and a wireless transceiver.

Background

In the LED (Light Emitting Diode) display screen control system industry, wired methods such as network cables are basically used for signal transmission between display boxes. With the continuous development of the LED display screen technology, the pixel pitch of the LED display screen is smaller and smaller, the area of the screen body is larger and larger, the number of display boxes used by the LED display screen is larger and larger, and the number of connected wires is greatly increased. The net gape crystal head is fragile, needs a large amount of net twines to connect and also can cause very big puzzlement to subsequent debugging of staff and maintenance moreover, and these all the time all are the pain point problem of LED display screen control system trade, await the solution urgently.

SUMMERY OF THE UTILITY MODEL

To overcome at least some of the deficiencies and shortcomings of the related art, embodiments of the present invention provide a display housing and a wireless transceiver.

On the one hand, the embodiment of the utility model provides a pair of display box, include: a case frame having a module mounting surface and a mounting portion located on a back side of the module mounting surface; the LED display panel is arranged on the module mounting surface and comprises one or more LED modules; the wireless transceiver is arranged on the mounting part and comprises a full-duplex wireless transceiver chip; and the module control card is arranged on the box body frame and is positioned on the back side of the module mounting surface, wherein the module control card is electrically connected with the LED display panel and is electrically connected with the wireless transceiver through a cable.

This embodiment is through setting up the wireless transceiver who contains full duplex wireless transceiver chip, and wireless transceiver directly sets up in showing the box, and it can realize showing the wireless communication between the box, has solved and has shown a great deal of wired connection between box and the demonstration box, need not to use the net twine to connect and communicate to with very fast speed transmission or received data, shortened and taken the screen time, reduced the cost of manual installation dismantlement and maintenance. Moreover, the full-duplex wireless transceiver chip is arranged, so that data can be transmitted and received by a single chip, and the size and the cost of a wireless transmission scheme of the wireless transceiver are reduced.

In an embodiment of the present invention, the operating frequency of the full-duplex wireless transceiver chip is in a frequency range of 30GHZ-300GHZ, and the wireless transceiver further includes a wired interface circuit and a signal conversion circuit electrically connected between the wired interface circuit and the full-duplex wireless transceiver chip; the module control card is electrically connected to the wired interface circuit through the cable.

In an embodiment of the present invention, the signal conversion circuit is electrically connected to the full-duplex wireless transceiver chip through a serial bus.

In an embodiment of the present invention, the serial bus includes a pair of data transmission differential signal lines and a pair of data reception differential signal lines, and the pair of data transmission differential signal lines and the pair of data reception differential signal lines are connected between the signal conversion circuit and the full-duplex wireless transceiver chip respectively.

In one embodiment of the present invention, the serial bus is a SerDes bus or an SGMII bus.

In an embodiment of the present invention, the wired interface circuit includes a network port and a network transformer, the signal conversion circuit includes a physical layer transceiver chip, the network transformer is electrically connected between the network port and the physical layer transceiver chip, and the physical layer transceiver chip is electrically connected through the serial bus to the full-duplex wireless transceiver chip.

In one embodiment of the invention, the physical layer transceiver chip is a 1GBASE-T, 2.5GBASE-T, 5GBASE-T or 10GBASE-T type physical layer transceiver chip.

In an embodiment of the present invention, the wired interface circuit includes an HDMI interface, a DP interface, an LVDS interface or a V-by-One interface, and the full-duplex wireless transceiver chip is a plurality of and electrically connected to the signal conversion circuit respectively.

On the other hand, the embodiment of the utility model provides a wireless transceiver, include: a circuit board having a first surface and an opposing second surface; the wired interface circuit is arranged on the first surface; the signal conversion circuit is arranged on the first surface and is electrically connected with the wired interface circuit; and at least one full-duplex wireless transceiver chip, which is arranged on the second surface and electrically connected with the signal conversion circuit through a serial bus, wherein the working frequency of each full-duplex wireless transceiver chip is in the frequency range of 57GHz-67GHZ or 71GHz-87 GHZ.

The wireless transceiver of the embodiment adopts a full-duplex wireless transceiver chip, so that a single chip can realize the transmission and the reception of data, and the size reduction and the cost reduction of a wireless transmission scheme of the wireless transceiver are facilitated; moreover, wireless transceiver can directly set up in showing the box to realize showing the wireless communication between the box, can solve and show the box and show a great deal of wired connection between the box, need not to use the net twine can connect and communicate, and with the transmission of extremely fast speed or received data, shortened and taken the screen time, reduced the cost of manual installation dismantlement and maintenance. In addition, the working frequency is located in the frequency range of 57GHz-67GHZ or 71GHZ-87GHZ, which is beneficial to reducing the possibility of wireless signal crosstalk.

In an embodiment of the present invention, the wired interface circuit includes a network port, an HDMI interface, a DP interface, an LVDS interface, or a V-by-One interface.

To sum up, the embodiment of the present invention provides an above-mentioned technical scheme can have following one or more beneficial effect: through setting up the wireless transceiver who contains full duplex wireless transceiver chip, wireless transceiver can directly set up in showing the box, and it can realize showing the wireless communication between the box, has solved and has shown a great deal of wired connection between box and the demonstration box, need not to use the net twine to connect and communicate to with very fast speed transmission or received data, shortened and taken the screen time, reduced the cost of manual installation dismantlement and maintenance. Moreover, the full-duplex wireless transceiver chip is arranged, so that data can be transmitted and received by a single chip, and the size and the cost of a wireless transmission scheme of the wireless transceiver are reduced. In addition, the working frequency is located in the millimeter wave frequency band, such as the frequency range 57GHZ-67GHZ or 71GHZ-87GHZ, which is beneficial for reducing the possibility of wireless signal crosstalk.

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 introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a state in which two display boxes provided by the embodiment of the present invention are spliced together.

Fig. 2 is a schematic diagram showing the relative position relationship between the modules in the display box shown in fig. 1.

Fig. 3 is a schematic structural diagram of the wireless transceiver shown in fig. 2.

Fig. 4 is a schematic diagram of an embodiment of the wireless transceiver shown in fig. 3.

Fig. 5A is a schematic diagram of a circuit element distribution on one surface of a circuit board in the wireless transceiver shown in fig. 4.

Fig. 5B is a schematic diagram of circuit element distribution on another opposing surface of the circuit board in the wireless transceiver of fig. 4.

Fig. 6A and 6B are schematic diagrams illustrating a circuit connection relationship among the network port, the network transformer, the physical layer transceiver chip and the full-duplex wireless transceiver chip in fig. 4.

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 and 2, an embodiment of the present invention provides a display box 10, which includes: the box frame 11, the LED display panel 13, the wireless transceiver 15 and the module control card 17.

The box frame 11 has a module mounting surface 111 and four sidewalls 113 located on the back side of the module mounting surface 111, and the four sidewalls 113 enclose an accommodation space located on the back side of the module mounting surface 111. The four LED modules 131 of the display panel 13 are disposed on the module mounting surface 111 and are spliced together, the two wireless transceivers 15 are disposed on two opposite sidewalls 113 (as mounting portions of the wireless transceivers 15) of the four sidewalls 113, respectively, and the module control card 17 is disposed in the accommodating space. Furthermore, the module control card 17 is a multi-circuit board structure in the present embodiment, and includes a HUB board 171 and a receiving card (or called a scan card) 173 inserted into the HUB board 171; as for the specific circuit hardware structure of the HUB board 171 and the receiving card 173, the existing mature technology can be adopted, and the details are not described herein; of course, the module control card 17 may be replaced with a single circuit board structure. In addition, it is worth mentioning that the box frame 11 is a rectangular (including square) hollow structure, but the embodiment of the present invention is not limited thereto, as long as the mounting and fixing of the LED display panel 13, the wireless transceiver 15 and the module control card 17 can be realized; the number of LED modules 131 in the LED display panel 13 is not limited to four as shown in fig. 2, and may be determined according to the actual application, for example, two or even one LED module 131; the number of wireless transceivers 15 in a single display housing 10 is not limited to two as shown in fig. 1 and 2, and may be one, three, or even four. In addition, a single LED module 131 typically has a plurality of LED display pixels, and a single LED display pixel includes, for example, RGB LED lamps or even more color LED lamps. The module control card 17 of the present embodiment is electrically connected to the wireless transceiver 15 through a cable, for example, a network cable or other cable such as a USB cable.

As described above, referring to fig. 3, the wireless transceiver 15 includes, for example: circuit board 150, wired interface circuit 151, signal conversion circuit 153 and full-duplex wireless transceiver chip 155. Wherein, the wired interface circuit 151 is disposed on the circuit board 150, the full-duplex wireless transceiving chip 155 is disposed on the circuit board 150, and the signal conversion circuit 153 is disposed on the circuit board 150 and electrically connected between the wired interface circuit 151 and the full-duplex wireless transceiving chip 155. The wired interface circuit 151 is connected to the module control card 17 by a cable.

The operating frequency of the full-duplex radio transceiver chip 155 is located in the millimeter wave band. The millimeter wave band herein typically means a frequency range of 30GHz to 300GHz with a corresponding wavelength of 1 mm to 10 mm. The full-duplex wireless transceiver chip 155 working in the millimeter wave band of this embodiment is very suitable for the application of the display box in the LED display screen, because the LED display screen is typically formed by splicing a plurality of display boxes, when the wireless transceiver 15 is installed in each display box 10, the first consideration is how to avoid the wireless signal crosstalk between two wireless transceivers 15 that do not need to transmit and receive data in the same LED display screen, and the full-duplex wireless transceiver chip 155 of this embodiment works in the millimeter wave band, which can greatly reduce the possibility of wireless signal crosstalk compared with the WiFi module, the bluetooth module, and the UWB module (the working frequency is 3GHZ-10GHZ) in the prior art. Furthermore, based on the performance of the wireless chip and the availability of the frequency band, it is preferable that the operating frequency band of the full-duplex wireless transceiver chip 155 is in the frequency range 57GHZ-67GHZ or 71GHZ-87GHZ, for example, the operating frequency of the full-duplex wireless transceiver chip 155 is 60GHZ or 80 GHZ. Further, it is worth mentioning that, with the full-duplex wireless transceiver chip 155, data transmission and reception can be realized by a single chip, which is advantageous for downsizing the wireless transceiver 15 and cost reduction of the wireless transmission scheme. In addition, the full-duplex wtru 155 of the present embodiment may be a wtru provided by the kaisaka corporation or the italian semiconductor corporation, but the present invention is not limited thereto.

Referring to fig. 4, in one embodiment, the wired interface circuit 151 includes a network port 151a (e.g., RJ45 port) and a network transformer 151b, and the network transformer 151b is electrically connected to the network port 151 a. The network port 151a and the network transformer 151b may be integrated together to form an ethernet interface of the integrated network transformer, so as to simplify the design and improve the electromagnetic compatibility, or may be separate structures. The signal conversion circuit 153 includes a physical layer transceiver chip 153a, for example, a 1GBASE-T type physical layer transceiver chip. To increase data transmission rates, the full-duplex wtru 155 is electrically connected to the phy transceiver chip 153a using a high-speed serial bus, such as a SerDes (Serializer/Deserializer) bus, which typically includes a pair of data transmission differential signal lines and a pair of data reception differential signal lines. Alternatively, the full-duplex wireless transceiver chip 155 may also use another serial bus, for example, an SGMII (serial gigabit Media Independent Interface) bus, and the SGMII bus may include a pair of transmission clock differential signal lines and a pair of reception clock differential signal lines in addition to a pair of data transmission differential signal lines and a pair of data reception differential signal lines. The wireless transceiver 15 of the present embodiment can implement data transceiving through the network port 151a and the module control card 17, and implement data transmission of the whole link by using the operation mode of the unshielded twisted pair-FIBER Media Converter (UTP-FIBER Media Converter) of the physical layer transceiver chip 153 a. In addition, it should be noted that the physical layer transceiver chip 153a is not limited to 1GBASE-T type physical layer transceiver chip, but may be 2.5GBASE-T type, 5GBASE-T type, or 10GBASE-T type physical layer transceiver chip; the wired interface circuit 151 is not limited to a network interface, and other types of interfaces, such as an HDMI interface, a DP interface, an LVDS interface, or a V-by-One interface, may be adopted, and accordingly the signal conversion circuit 153 may be replaced with a programmable logic device, such as an FPGA device or an ASIC chip with similar functions, and the number of the full-duplex wireless transceiver chips 155 in the single wireless transceiver 15 is, for example, plural, and is electrically connected to the signal converter 153 through a serial bus respectively.

Referring to fig. 5A and 5B, a net port 151a and a physical layer transceiver chip 153a are provided on a surface 150a of the circuit board 150, and a network transformer 151B integrated with the net port 151a is of course also provided on the surface 150 a. In addition, a wired power interface 152 is disposed on the surface 150a for receiving an external power signal to provide an operating voltage to each circuit element on the circuit board 150. Further, a full-duplex radio transceiver chip 155 is provided on the other surface 150b of the circuit board 150 opposite to the surface 150 a. This distribution of circuit elements on circuit board 150 over different surfaces may reduce the size of wireless transceiver 155; also, locating the full-duplex wireless transceiver 155 and interface circuitry on different surfaces facilitates the mounting of the wireless transceiver 155 in the display enclosure 10 and the wireless transmission between the display enclosure 10.

As for the circuit connection relationship between the network port 151a and the network transformer 151B, the network transformer 151B and the physical layer transceiver chip 153a, and the physical layer transceiver chip 153a and the full-duplex wireless transceiver chip 155, fig. 6A and 6B may be referred to. In FIGS. 6A and 6B, pin Port1_ T0+, Port1_ T0-, Port1_ T1+, Port1_ T1-, Port1_ T2+, Port1_ T2-, Port1_ T3+, and Port1_ T3-of the mesh Port 151a are electrically connected to the mesh transformer 151B, pin Port _ TRD [0] +, Port _ TRD [0] -, Port _ TRD [1] +, Port _ TRD [1] -, Port _ TRD [2] +, Port _ TRD [2] -, Port _ TRD [3] + and Port _ TRD [3] -, of the mesh Port 151a are electrically connected to the physical layer transceiver chip 153a, and the full-duplex wireless transceiver chip 155 is electrically connected to the physical layer transceiver chip 153a through two pairs of physical layer transceiver chips via two pairs of capacitors. Here, the network port 151a is an RJ45 port, the network transformer 151b is an SG24301G chip, and the phy transceiver chip 153a is an RTL8211FS chip, but the invention is not limited thereto.

In summary, in the foregoing embodiment, by providing the wireless transceiver including the full-duplex wireless transceiver chip, the wireless transceiver can be directly disposed in the display box, which can achieve wireless communication between the display boxes, solve the problem of the numerous wired connections between the display boxes, and can connect for communication without using a network cable, and transmit or receive data at a very fast rate, thereby shortening the screen-overlapping time and reducing the cost of manual installation, disassembly and maintenance. Moreover, the full-duplex wireless transceiver chip is arranged, so that data can be transmitted and received by a single chip, and the size and the cost of a wireless transmission scheme of the wireless transceiver are reduced. In addition, the working frequency is located in the millimeter wave frequency band, for example, located in the frequency range of 57GHZ-67GHZ or 71GHZ-87GHZ, which is beneficial for reducing the possibility of wireless signal crosstalk.

In addition, it should be understood that the foregoing embodiments are only exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated for use without conflict, contradiction and conflict between technical features and structures. In addition, the wireless transceiver in other embodiments may not be provided with a signal conversion circuit, but the full-duplex wireless transceiver chip is electrically connected to a USB cable interface serving as a wired interface circuit, and then is electrically connected to the module control card through a USB cable including a high-speed serial bus via the USB cable interface, so as to achieve wireless transmission between the display boxes.

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. A display cabinet, comprising:

a case frame having a module mounting surface and a mounting portion located on a back side of the module mounting surface;

the LED display panel is arranged on the module mounting surface and comprises one or more LED modules;

the wireless transceiver is arranged on the mounting part and comprises a full-duplex wireless transceiver chip; and

and the module control card is arranged on the box body frame and is positioned on the back side of the module mounting surface, wherein the module control card is electrically connected with the LED display panel and is electrically connected with the wireless transceiver through a cable.

2. The display cabinet of claim 1, wherein the operating frequency of the full-duplex wireless transceiver chip is in the frequency range of 30GHZ-300GHZ, and the wireless transceiver further comprises a wired interface circuit and a signal conversion circuit electrically connected between the wired interface circuit and the full-duplex wireless transceiver chip; the module control card is electrically connected to the wired interface circuit through the cable.

3. The display cabinet of claim 2, wherein the signal conversion circuit is electrically connected to the full-duplex wireless transceiver chip via a serial bus.

4. The display box of claim 3, wherein the serial bus comprises a pair of data transmission differential signal lines and a pair of data reception differential signal lines, and the pair of data transmission differential signal lines and the pair of data reception differential signal lines are respectively connected between the signal conversion circuit and the full-duplex wireless transceiver chip.

5. The display cabinet of claim 4, wherein the serial bus is a SerDes bus or an SGMII bus.

6. A display cabinet in accordance with claim 3, wherein the wired interface circuit comprises a network port and a network transformer, the signal conversion circuit comprises a physical layer transceiver chip, the network transformer is electrically connected between the network port and the physical layer transceiver chip, and the physical layer transceiver chip is electrically connected to the full-duplex wireless transceiver chip through the serial bus.

7. The display cabinet of claim 6, wherein the physical layer transceiver chip is a 1GBASE-T type, 2.5GBASE-T type, 5GBASE-T type, or 10GBASE-T type physical layer transceiver chip.

8. The display box body of claim 2, wherein the wired interface circuit comprises an HDMI interface, a DP interface, an LVDS interface or a V-by-One interface, and the number of the full-duplex wireless transceiver chips is plural and is electrically connected to the signal conversion circuit respectively.

9. A wireless transceiver, comprising:

a circuit board having a first surface and an opposing second surface;

the wired interface circuit is arranged on the first surface;

the signal conversion circuit is arranged on the first surface and is electrically connected with the wired interface circuit; and

and the full-duplex wireless transceiving chips are arranged on the second surface and are electrically connected with the signal conversion circuit through a serial bus, wherein the working frequency of each full-duplex wireless transceiving chip is in a frequency range of 57GHz-67GHZ or 71GHz-87 GHZ.

10. The wireless transceiver of claim 9, wherein the wired interface circuit comprises a mesh port, an HDMI interface, a DP interface, an LVDS interface or a V-by-One interface.