CN205050537U - LED asynchronous control ware - Google Patents

Abstract

The utility model relates to an LED asynchronous controller, comprising: a core board provided with a processor module, a USB? PHY chip, network PHY chip, non-volatile memory and first volatile memory; wireless network communication sub-board, provided with WiFi module and/or mobile network module, and corresponding to said WiFi module and/or said mobile network An antenna interface provided for the module; and a bottom board provided with a programmable logic device module, a second volatile memory, an LED display driver module, a core board interface and a wireless network communication sub-board interface. The LED asynchronous controller proposed by the utility model is designed in a three-layer structure, which can improve the poor stability and reliability of the system, save costs and save space for hardware typesetting.

Description

LED asynchronous controller

technical field

The utility model relates to the technical field of LED display control, in particular to an LED asynchronous controller.

Background technique

Embedded operating system is a system software with a wide range of uses, usually including hardware-related underlying driver software, system kernel, device driver interface, communication protocol, graphical interface, standardized browser, etc. The embedded operating system is responsible for the allocation of all software and hardware resources of the embedded system, task scheduling, control, and coordination of concurrent activities; it must reflect the characteristics of the system where it is located, and can achieve the functions required by the system by loading and unloading certain modules. At present, the operating systems widely used in the field of embedded systems include: embedded Linux, Windows Embedded (such as WinCE6.0), VxWorks, etc., as well as Android and iOS used in smart phones and tablet computers.

The characteristics of the embedded operating system mainly include: small system kernel, strong specificity, streamlined system, high real-time performance, multi-tasking, and the need for specific development tools and environments. The design and development of some peripheral functions on the embedded system is also a trend in the development of electronic product control systems in today's society.

With the rapid development of LED display technology, various LED display drive schemes are emerging one after another. Figure 1 is a schematic diagram of the hardware structure of an existing LED asynchronous controller, which mainly uses a single circuit board to place the hardware circuits related to the entire system, and uses the ARM+FPGA architecture as the main control module.

However, the existing LED asynchronous controller still has the problems of poor system stability, low reliability and high cost.

Utility model content

Therefore, aiming at the defects and deficiencies in the prior art, the utility model proposes an LED asynchronous controller.

Specifically, an embodiment of the utility model proposes an LED asynchronous controller, which is used to carry one or more LED lamp panels. The LED asynchronous controller includes: a core board, provided with a processor module, a USBPHY chip, a network PHY chip, a non-volatile memory and a first volatile memory, the USBPHY chip, the network PHY chip, the The non-volatile memory and the first volatile memory are electrically connected to the processor module; the wireless network communication sub-board is provided with a WiFi module and/or a mobile network module, and corresponds to the WiFi module and/or the The antenna interface provided by the mobile network module; and the bottom plate, which is provided with a programmable logic device module, a second volatile memory, an LED display driver module, a core board interface and a wireless network communication sub-board interface, and the second volatile The memory and the LED display driver module are electrically connected to the programmable logic device module, and the wireless network communication sub-board is electrically connected to the interface of the wireless network communication sub-board and is electrically connected to the USBPHY chip and the The network PHY chip, the programmable logic device module is electrically connected to the processor module through the core board interface.

In one embodiment of the present invention, the processor module includes an ARM processor.

In one embodiment of the present utility model, the wireless network communication sub-board is also provided with a mobile network module interface, and the mobile network module interface is electrically connected to the A USBPHY chip; the mobile network module is pluggably and electrically connected to the mobile network module interface.

In one embodiment of the present invention, the mobile network module interface is a PCI-E interface, and the mobile network module is a card-type module with a PCI-E interface.

In an embodiment of the present invention, the wireless network communication sub-board is further provided with a SIM card interface, and the SIM card interface is electrically connected to the mobile network module interface.

In one embodiment of the present utility model, the antenna interface is an SMA interface.

In one embodiment of the present invention, the WiFi module is a dual-mode WiFi module with a station mode and an AP mode.

In one embodiment of the present utility model, the base board is also provided with a wired network interface module, a single-chip microcomputer module, a clock and battery module, a power supply control module, a serial port module and an audio circuit, and the wired network interface module passes through the core board The interface is electrically connected to the network PHY chip, the single-chip microcomputer module is electrically connected to the programmable logic device module, the clock and battery module is electrically connected to the single-chip microcomputer module, and the power control module is electrically connected to the single-chip microcomputer module and the A core board interface, the serial port module is electrically connected to the processor module through the core board interface and includes an RS232 interface and an RS485 interface, and the audio circuit is electrically connected to the processor module through the core board interface.

In one embodiment of the present invention, the base board is also a USBHUB chip, and the wireless network communication sub-board interface is electrically connected to the USBPHY chip through the USBHUB chip and the core board interface in sequence.

In one embodiment of the present invention, the core board, the wireless network communication sub-board and the base board are spaced in three layers, and the core board is fixed on the base board and the wireless network Communication between sub-boards.

It can be seen from the above that the LED asynchronous controller proposed by the embodiment of the present invention can improve the poor stability and reliability of the system, save cost and space for hardware layout.

Other aspects and features of the present invention will become apparent from the following detailed description with reference to the accompanying drawings. It should be understood, however, that this drawing is designed for purposes of illustration only, and not as a limitation of the scope of the invention, since reference should be made to the appended claims. It should also be understood that, unless otherwise indicated, the drawings are not necessarily drawn to scale and are merely intended to conceptually illustrate the structures and processes described herein.

Description of drawings

The specific implementation manner of the present utility model will be described in detail below in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of a hardware structure of an LED asynchronous controller in the prior art.

Fig. 2 is a schematic diagram of the hardware structure of the bottom board of an LED asynchronous controller proposed by the embodiment of the present invention.

FIG. 3 is a schematic diagram of a hardware structure of a core board of an LED asynchronous controller proposed by an embodiment of the present invention.

FIG. 4 is a schematic diagram of the hardware structure of a wireless network communication sub-board of an LED asynchronous controller proposed by an embodiment of the present invention.

Fig. 5 is a schematic diagram of the spatial positional relationship among the base board, the core board and the wireless network communication sub-board of an LED asynchronous controller proposed by the embodiment of the present invention.

detailed description

In order to make the above purpose, features and advantages of the present utility model more obvious and understandable, the specific implementation of the present utility model will be described in detail below in conjunction with the accompanying drawings.

Please refer to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, an LED asynchronous controller 50 proposed by an embodiment of the present invention is used to carry one or more LED lamp boards to realize information display, which includes a bottom board 20, A core board 30 and a wireless network communication sub-board 40 .

Wherein, as shown in Figure 2, the bottom board 20 includes a core board interface 201, an FPGA module 202, a wireless network communication sub-board interface 203, a wired network interface module 204, a USBHUB chip 205, an audio circuit 206, and an indicator light arranged on the circuit board. And key module 207 , serial port module 208 , SDRAM 209 , LED display driver module 210 , clock and battery module 211 , single chip microcomputer module 212 and power control module 213 .

As shown in FIG. 3 , the core board 30 includes an ARM processor 301 , a network PHY chip 302 , a USB PHY chip 303 , a flash memory 304 , a DDR2305 and a power management chip (PowerManagementIC) 306 arranged on the circuit board.

As shown in Figure 4, the wireless network communication sub-board 40 includes a 3G/4G module interface 401, a SIM card interface 402, a WiFi module 403, SMA interfaces 404, 405, an indicator light module 406 and a power supply module 407 arranged on the circuit board, And the 3G/4G module 408 electrically connected to the 3G/4G module interface 401 .

The components of the bottom board 20 , the core board 30 and the wireless network communication sub-board 40 will be described in detail below with reference to FIG. 2 , FIG. 3 and FIG. 4 .

Referring to FIG. 2 , the core board interface 201 serves as an electrical connection element between the core board 30 and the bottom board 20 , which may be a terminal block, for example, two 60pin terminal blocks.

FPGA (Field Programmable Gate Array, Field Programmable Gate Array) module 202 is electrically connected to the ARM processor 301 on the core board 30 through the core board interface 201, which mainly processes the interactive information with the ARM processor 301, and sends the displayed information Provide LED lamp boards, and perform authorization management functions for the use of products; here, the FPGA module 202 can also be other programmable logic device modules, such as CPLD (Complex Programmable Logic Device, complex programmable logic device) modules, etc.

The wireless network communication sub-board interface 203 serves as an electrical connection element between the wireless network communication sub-board 40 and the base plate 20 , which may be a terminal block, for example, a 6-pin terminal block and a 10-pin terminal block.

The wired network interface module 204 is electrically connected to the network PHY chip (that is, the network physical interface transceiver chip) 302 on the core board 30 through the core board interface 201, which typically includes a network transformer and a network port such as an RJ45 interface; here, the wired network The interface module 204 is mainly used as a communication bridge between the ARM processor 301 on the core board 30 and the external PC.

The USBHUB chip 205 is electrically connected to the USBPHY chip 303 on the core board 30 through the core board interface 201, which is mainly used for USB interface expansion; the expanded USB interface can be used to connect USB disks, and peripheral devices such as a mouse with a USB interface .

The audio circuit 206 is electrically connected to the audio interface of the ARM processor 301 on the core board 30 through the core board interface 201, and it is a processing module to audio during media playback, typically including a level conversion circuit, a digital-to-analog converter and an audio output port for connecting speakers.

For the indicator light and the key module 207, the different display states of the indicator light can effectively allow the user to locate the current system operation status, and can quickly locate and indicate the problem; the key is mainly used for restoring the factory IP address.

The serial port module 208 is electrically connected to the UART (Universal Asynchronous Receiver/Transmitter, Universal Asynchronous Receiver Transmitter) port of the ARM processor 301 on the core board 30 through the core board interface 201, which for example includes a level conversion circuit, RS232 interface, RS485 transceiver and RS485 The RS232 interface is electrically connected to the UART port of the ARM processor 301 through the level conversion circuit, and the RS485 interface is electrically connected to another UART port of the ARM processor 301 through the RS485 transceiver and the level conversion circuit in sequence. In addition, the RS485 interface is mainly used to connect peripheral devices that are a little farther away, such as optical probes, etc.; the RS232 interface is generally used to debug the operating system and print some debugging information.

The SDRAM 209 is electrically connected to the FPGA module 202 and is mainly used to store data of the FPGA module 202 . Of course, the SDRAM 209 here can also be replaced with other volatile memories.

The LED display driver module 210 is electrically connected to the FPGA module 202, which mainly includes the driver circuit part of the LED lamp board and the interface part of the LED lamp board (such as an adapter board or a HUB board interface), and the LED asynchronous controller 50 can be realized through the module 210. Functions loaded on this board.

The clock and battery module 211 is electrically connected to the single-chip microcomputer module 212, which is mainly used to keep the system time synchronized with the network, and can avoid the problem of time loss after the system is powered off.

The single-chip microcomputer module 212 is electrically connected to the FPGA module 202, which is mainly used to control the power supply, obtain the storage time from the clock and the battery module 211 to the ARM processor 301, and detect some temperature, humidity, voltage and alarm and the box door switch of the LED box Detection and other functions;

The power supply control module 213 is electrically connected to the single-chip microcomputer module 212, and is mainly powered by the single-chip microcomputer module 212 to control the power supply to the ARM processor 301, so as to prevent the ARM processor 301 from being broken down and burned out as soon as it is powered on.

Referring to Fig. 3, the ARM processor 301 runs operating systems (such as Linux, Android and other operating systems) and function-related application software after being powered on, and controls various external devices to play functions; in addition, the ARM processor 301 can also be a Other processor modules for ARM processors.

The network PHY chip 302 is electrically connected to the ARM processor 301, which is, for example, a 100M network PHY chip.

The USBPHY chip 303 is electrically connected to the USB interface of the ARM processor 301 .

The flash memory 304 and DDR2305 are electrically connected to the ARM processor 301, which are mainly key modules that serve the ARM processor 301, store operating system files and software, and ensure the normal and stable operation of the system. Here, the flash memory 304 can also be replaced with other non-volatile memory, and the DDR2305 can also be replaced with other volatile memory.

The power management chip 306 is electrically connected to the ARM processor 301 and mainly provides a power management mechanism for the ARM processor 301 on the core board 30 .

Please refer to Fig. 4, 3G/4G module interface 401 is used for connecting 3G/4G module 408, and it is PCI-E interface for example; Moreover, 3G/4G module interface 401 is electrically connected USBHUB chip 205 through wireless network communication sub-board interface 203 .

The SIM card interface 402 is electrically connected to the 3G/4G module interface 401, and is used for accommodating a SIM card.

WiFi module 403 can be used as station mode and AP mode, has the function of routing WiFi, and can carry out parameter setting through the web page of PC end; In addition, the user can be connected to LED asynchronous controller 50 through mobile terminal such as mobile phone, PAD and other equipments. Communication: through the APP of the mobile terminal, configure the parameters of the LED display, adjust the brightness, check whether the operation status of the LED control system is good, send and play media, etc.; in the case of no network, the media transmission function can also be realized by connecting the WiFi module 403 through the mobile phone . It can be seen that the WiFi module 403 of this embodiment is a dual-mode WiFi module having a station mode and an AP mode. Furthermore, the WiFi module 403 is electrically connected to the network PHY chip 302 through the wireless network communication sub-board interface 203 and the core board interface 201 .

The SMA interfaces 404 and 405 are respectively electrically connected to the WiFi module 403 and the 3G/4G module 408 and used as antenna interfaces to externally connect a dedicated WiFi antenna and a 3G/4G antenna to enhance the signal.

The indicator light module 406 is electrically connected to the 3G/4G module interface 401 and the WiFi module 403 to indicate the working status of the 3G/4G module 408 and the WiFi module 403 .

The power supply module 407 is electrically connected to the 3G/4G module interface 401 , the WiFi module 403 and the indicator light module 406 to supply power thereto.

The 3G/4G module 408 is a mobile network module, which may be a card-type module with a PCI-E interface, so that it can be pluggably arranged on the wireless network communication sub-board 40 . In addition, the 3G/4G module 408 adopts, for example, a SIM5352E chip integrated with 3G and GPS functions. Furthermore, due to the setting of the 3G/4G module 408, it is possible to connect to the mobile network and access the latest information on the Internet anytime and anywhere in outdoor applications; the GPS function can be used to locate the current location of the LED asynchronous controller 50.

Please refer to Fig. 5, the LED asynchronous controller 50 of the present embodiment adopts a 3-layer structure design, and the base board 20 is compatible with the core board interface 201 and the wireless network communication interface 203, and the base board 20, the core board 30, the wireless network communication interface 203 are arranged sequentially from bottom to top. The network communication sub-board 40 has a three-layer structure design, in which the core board 30 and the base board 20 are electrically connected, for example, through two 60-pin headers, and the wireless network communication sub-board 40 and the base board 20 are connected through, for example, 10-pin and 6-pin pin headers. The copper pillars 51 are used to fix the distance between the three boards, which saves space for system hardware design.

In addition, it can be understood that the LED asynchronous control card of the present invention is not limited to be equipped with all the components shown in Figure 2, Figure 3 and Figure 4, and can also flexibly add, integrate, or omit some components according to the actual situation, for example The wireless network communication sub-board 40 can only be provided with a WiFi module but not a mobile network module (such as a 3G/4G module), or only a mobile network module is provided without a WiFi module, or both are provided, etc., as long as it does not depart from this The inventive spirit of the utility model to improve the poor stability and reliability of the system, save costs and space for hardware typesetting is sufficient.

To sum up, the utility model can achieve one or more of the following beneficial effects: 1) saving cost and space for hardware typesetting; 2) being able to meet the intelligent needs of customers, and having better user experience; 3) being able to realize WiFi The dual-mode function of station mode and AP mode, and can be set remotely through the webpage, and also integrates the functions of mobile network communication and GPS; and 4) can meet the requirements of outdoor vehicle LED display.

The above are only preferred embodiments of the utility model, and are not intended to limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those who are familiar with this profession, without departing from the scope of the technical solution of the present utility model, can use the technical content disclosed above to make some changes or modify the equivalent embodiments of equivalent changes, but all without departing from the technical solution of the utility model Content, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the technical solution of the utility model.

Claims (10)

1. a LED nonsynchronous controller, carries one or more LED lamp panel for band; It is characterized in that, described LED nonsynchronous controller comprises:

Core board, be provided with processor module, USBPHY chip, network PHY chip, nonvolatile memory and the first volatile memory, described USBPHY chip, described network PHY chip, described nonvolatile memory and described first volatile memory are electrically connected described processor module;

Wireless communication daughter board, is provided with WiFi module and/or mobile network's module and corresponding described WiFi module and/or described mobile network's module and the antennal interface arranged; And

Base plate, be provided with programmable logic device (PLD) module, the second volatile memory, LED driver module, core board interface and wireless communication daughterboard interface, described second volatile memory and described LED driver module are electrically connected described programmable logic device (PLD) module, described wireless communication daughter board is electrically connected described wireless communication daughterboard interface and is electrically connected described USBPHY chip and described network PHY chip by described core board interface, and described programmable logic device (PLD) module is electrically connected described processor module by described core board interface.

2. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described processor module comprises arm processor.

3. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described wireless communication daughter board is also provided with mobile network's module interface, and described mobile network's module interface is electrically connected described USBPHY chip by described wireless communication daughterboard interface and described core board interface; Described mobile network's module is electrically connected described mobile network's module interface pluggablely.

4. LED nonsynchronous controller as claimed in claim 3, it is characterized in that, described mobile network's module interface is PCI-E interface, and described mobile network's module is the plate card type module with PCI-E interface.

5. LED nonsynchronous controller as claimed in claim 3, it is characterized in that, described wireless communication daughter board is also provided with SIM card interface, and described SIM card interface is electrically connected described mobile network's module interface.

6. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described antennal interface is SMA interface.

7. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described WiFi module is the double mode WiFi module with station pattern and ap mode.

8. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described base plate is also provided with wired network interface module, one-chip computer module, clock and battery module, energy supply control module, serial port module and voicefrequency circuit, described wired network interface module is electrically connected described network PHY chip by described core board interface, described one-chip computer module is electrically connected described programmable logic device (PLD) module, described clock and battery module are electrically connected described one-chip computer module, described energy supply control module is electrically connected described one-chip computer module and described core board interface, described serial port module is electrically connected described processor module by described core board interface and comprises RS232 interface and RS485 interface, described voicefrequency circuit is electrically connected described processor module by described core board interface.

9. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described base plate is USBHUB chip also, and described wireless communication daughterboard interface is sequentially electrically connected described USBPHY chip by described USBHUB chip and described core board interface.

10. LED nonsynchronous controller as claimed in claim 1, it is characterized in that, described core board, described wireless communication daughter board and described base plate spatially divide three interlayers every setting, and described core board is fixed between described base plate and described wireless communication daughter board.