CN205230030U - Integration LED guiding screen control system - Google Patents
Integration LED guiding screen control system Download PDFInfo
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- CN205230030U CN205230030U CN201520916483.XU CN201520916483U CN205230030U CN 205230030 U CN205230030 U CN 205230030U CN 201520916483 U CN201520916483 U CN 201520916483U CN 205230030 U CN205230030 U CN 205230030U
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Abstract
The utility model belongs to the technical field of intelligent transportation equipment, concretely relates to integration LED guiding screen control system, CPU data processing unit and FPGA data processing unit including interconnect, the CPU data processing unit includes CPU treater and the storage module and the communication module that are connected with the CPU treater, the FPGA data processing unit includes FPGA logic controller and the 2nd storage module who is connected with FPGA logic controller, FPGA procedure configuration module and display driver circuit, communication module receives background data, and CPU analyzes the processing to data, converts parallel data output to through FPGA and shows drive circuit to the drive LED guiding screen show.
Description
Technical field
The utility model belongs to intelligent transportation equipment technical field, is specifically related to a kind of integral LED induced screen control system, carries out guide and instruct management to urban transportation, to alleviate the problem of urban traffic blocking.
Background technology
Full Matrix LED induced screen has the convenience that releases news, abundant in content feature, and more is applied in the induction project of various places.At present, the Information issued of full dot matrix induced screen is sent to industrial computer by backstage by GPRS, is forwarded to LED control card after industrial computer decoding by RS232/RS485.The advantage adopting industrial computer transfer is the load alleviating LED control card CPU, simplify LED control card software development difficulty, but shortcoming also clearly, result in the raising of system complexity, debugging cycle lengthens, and between different induced screen, code can not be reused, result in software development cycle to lengthen, in this case, the experience that software and hardware staff implements according to project development, proposes the concept of integral LED induced screen control system.
FPGA (Field-ProgrammableGateArray), i.e. field programmable gate array, it is the product further developed on the basis of the programming devices such as PAL, GAL, CPLD.It occurs as a kind of semi-custom circuit in special IC (ASIC) field, has both solved the deficiency of custom circuit, overcomes again the shortcoming that original programming device gate circuit number is limited.
Utility model content
The purpose of this utility model is to provide a kind of integral LED induced screen control system, on the basis of existing hardware framework, remove industrial computer decoding forwarding part, directly communication is carried out with background system by GPRS by LED control card, the decoding of information and the restructuring of picture all realize on LED control card, to reach simplified system architecture, save the object of system cost.
The utility model is realized by following technical scheme.
There is provided integral LED induced screen control system, comprise interconnective cpu data processing unit and FPGA data processing unit, described cpu data processing unit comprises CPU processor and the first memory module of being connected with CPU processor and communication module; The second memory module, FPGA application configuration module and display driver circuit that described FPGA data processing unit comprises fpga logic controller and is connected with fpga logic controller; Described communication module receives back-end data, and CPU carries out dissection process to data, converts parallel data output to and shows driving circuit, show with driving LED induced screen through FPGA.
In the above technical scheme, described first memory module to comprise in serial FLASH memory, NAND-FLASH storer or SDRAM storer one or more.
In the above technical scheme, described second memory module comprises SRAM memory.
In the above technical scheme, described cpu data processing unit also includes Temperature Humidity Sensor, voltage detection module and real-time clock module.
In the above technical scheme, described communication module adopts RS232/485 communication, the communication of RJ45 network interface or RF radio communication.
In the above technical scheme, integral LED induced screen control system also includes the CPU debugging interface that is connected with CPU processor and outsidely expands interface, and with the FPGA debugging interface of fpga logic controller and working station indicator.
The LED induced screen control system communication task of technical solutions of the utility model and data processing task carry out simultaneously, ensure the accuracy keeping the unimpeded of communication while LED screen shows smoothness and receive data; After can adding operating system, improve the real-time of whole system, and solve the slack problem of display; By encoding to the BMP picture of display, greatly reducing the quantity of information that picture issues, decreasing the reception data volume of MCU, improve the efficiency of data processing.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the integral LED induced screen control system in embodiment.
Fig. 2 is the structured flowchart of the integral LED induced screen control system in embodiment.
The image data processing procedure figure of the integral LED induced screen control system in Fig. 3 embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical scheme to this practical integral LED induced screen control system elaborates.
With reference to Fig. 1, shown in Fig. 2 and Fig. 3, the integral LED induced screen control system of the present embodiment is primarily of cpu data processing unit and FPGA data processing unit composition, cpu data processing unit mainly comprises CPU processor, serial Flash storer, NAND-FLASH storer, the SDRAM storer that dynamic random stores and communication module, and sensor, voltage detection module and real-time clock module, wherein sensor is divided into temperature sensor and humidity sensor, communication module adopts RS232 communication, RS485 communicates, the communication of RJ45 network interface and one or more of RF radio communication, in addition, the CPU processor of cpu data processing unit is also connected with CPU debugging interface and external expansion interface.
FPGA data processing unit mainly includes fpga logic controller, dynamic random stores SDRAM storer, FPGA debugging interface, FPGA application configuration module and display driver circuit.Be connected by data-interface between fpga logic controller with CPU processor, display driver circuit carries out display driver to LED induced screen.
The software workflow of system is, after the initialization of CPU processor, enters mode of operation, and main task Shows Picture information exactly, and image data can, from backstage, also can be the image data information prestored inside flash storage.After the image data receiving backstage, first need to decode to image data, then by decoding data buffer storage inside SDRAM storer, and see the need of storage according to order request, convert parallel data to by fpga logic controller and export to display driver circuit, the display of control LED induced screen.
With reference to accompanying drawing 3, for whole image data receives the process of process, first data receiver is come in (by RS232/485, RJ45 network interface, RF is wireless) by communication interface, then the order received is resolved, according to order, picture is operated (comprising road conditions picture, congestion information, roll display information, information picture, poster picture etc.), finally by fpga logic controller output display.While data processing, need the data of timing read sensor, comprise temperature, humidity, system operating voltage etc.
Claims (7)
1. integral LED induced screen control system, comprises interconnective cpu data processing unit and FPGA data processing unit, and described cpu data processing unit comprises CPU processor and the first memory module of being connected with CPU processor and communication module; The second memory module, FPGA application configuration module and display driver circuit that described FPGA data processing unit comprises fpga logic controller and is connected with fpga logic controller; Described communication module receives back-end data, and CPU carries out dissection process to data, converts parallel data output to and shows driving circuit, show with driving LED induced screen through FPGA.
2. integral LED induced screen control system according to claim 1, is characterized in that, described first memory module to comprise in serial FLASH memory, NAND-FLASH storer or SDRAM storer one or more.
3. integral LED induced screen control system according to claim 1, is characterized in that, described communication module adopts RS232/485 communication, the communication of RJ45 network interface or RF radio communication.
4. the integral LED induced screen control system according to claim 1-3 any one, is characterized in that, described cpu data processing unit also includes Temperature Humidity Sensor, voltage detection module and real-time clock module.
5. the integral LED induced screen control system according to claim 1-3 any one, is characterized in that, described second memory module comprises SRAM memory.
6. the integral LED induced screen control system according to claim 1-3 any one, it is characterized in that, also include the CPU debugging interface that is connected with CPU processor and outsidely expand interface, and with the FPGA debugging interface of fpga logic controller and working station indicator.
7. a LED induced screen, comprises integral LED induced screen control system as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916483.XU CN205230030U (en) | 2015-11-17 | 2015-11-17 | Integration LED guiding screen control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520916483.XU CN205230030U (en) | 2015-11-17 | 2015-11-17 | Integration LED guiding screen control system |
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| Publication Number | Publication Date |
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| CN205230030U true CN205230030U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520916483.XU Active CN205230030U (en) | 2015-11-17 | 2015-11-17 | Integration LED guiding screen control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981264A (en) * | 2017-04-10 | 2017-07-25 | 天津华德宝航翼光电科技有限公司 | A kind of full-color LED screen display control apparatus |
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2015
- 2015-11-17 CN CN201520916483.XU patent/CN205230030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981264A (en) * | 2017-04-10 | 2017-07-25 | 天津华德宝航翼光电科技有限公司 | A kind of full-color LED screen display control apparatus |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170818 Address after: Nanshan District Xili street of Shenzhen city in Guangdong province with 518000 Road No. 168 Kedar group center building A room 603 Patentee after: Shenzhen city week Botong Technology Co. Ltd. Address before: 518000 Guangdong city of Shenzhen province Qianhai Shenzhen Hong Kong cooperation zone before Bay Road No. 1 building 201 room A Patentee before: SHENZHEN KAIDAFU WISDOM TRAFFIC TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |