CN205247835U - LED picture and text screen - Google Patents

LED picture and text screen Download PDF

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Publication number
CN205247835U
CN205247835U CN201521032660.4U CN201521032660U CN205247835U CN 205247835 U CN205247835 U CN 205247835U CN 201521032660 U CN201521032660 U CN 201521032660U CN 205247835 U CN205247835 U CN 205247835U
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CN
China
Prior art keywords
module
led
drive circuit
microprocessor
card
Prior art date
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Active
Application number
CN201521032660.4U
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Chinese (zh)
Inventor
黄海燕
张伟
陈广斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan shengzhiyuan transportation facilities Co.,Ltd.
Original Assignee
Zhengzhou Zheng'an Traffic Technology Development Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhengzhou Zheng'an Traffic Technology Development Co Ltd filed Critical Zhengzhou Zheng'an Traffic Technology Development Co Ltd
Priority to CN201521032660.4U priority Critical patent/CN205247835U/en
Application granted granted Critical
Publication of CN205247835U publication Critical patent/CN205247835U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a LED picture and text screen, this LED picture and text screen is including microprocessor, LED drive module, LED display screen, wireless network communication module, serial port communication interface, outside SRAM extension module, flash extension module, SD card extension module, audio frequency drive module, audio frequency card and power module, wherein, LED drive circuit includes line drive circuit, is listed as drive circuit for write in the demonstration data in advance into, refresh demonstration data and drive LED shows that screen display shows, the audio frequency card is used for realizing audio playback, wireless network communication module with the serial port communication interface shows the order for the real -time of receiving host machine wireless transmission or off -line broadcast, outside SRAM extension module flash extension module the SD card extension module be used for providing outside storage space, power module is used for providing working power supply.

Description

LED picture and text screen
Technical field
The utility model relates to a kind of LED picture and text screen.
Background technology
LED picture and text screen is very general in the use of the public places such as highway, bank, subway, market. But the design of existing LED picture and text screen control card mainly divides following a few class: 1, use 51 series monolithic systems, 2, use 51 series monolithics and CPLD system, 3, use ARM core system, 4, use fpga core system; Existing LED picture and text screen control card mostly exists that data processing is slow, Special display effect is not smooth, is difficult to process the large shortcoming such as demonstration data, poor stability, and cannot carry out real-time update, can't process well the problem of temporary interruption simultaneously.
For solving the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The utility model is for the deficiencies in the prior art, provides a kind of design science, low-power consumption, operating efficiency is high, data-handling capacity is strong, display effect is good, the LED picture and text of stable work in work screen.
The technical scheme that the utility model adopts is as follows: a kind of LED picture and text screen, and this LED picture and text screen includes microprocessor, LED driver module, LED display, wireless network communication module, serial communication interface, external SRAM expansion module, Flash expansion module, SD card expansion module, audio driven module, audio card and power module; Wherein, described LED drive circuit comprises horizontal drive circuit, column drive circuit, described microprocessor connects respectively described horizontal drive circuit and described column drive circuit, and described horizontal drive circuit is connected respectively described LED display with column drive circuit and shows data, refreshes demonstration data and drive described LED display to show to write in advance; Described microprocessor connects described audio driven module, and described audio driven module connects described audio card and plays to realize audio frequency; Described microprocessor connects described wireless network communication module and described serial communication interface so that wireless and cable network communication interface to be provided, receive host computer wireless transmission in real time or off line play display command; Described microprocessor connects described serial communication interface so that ancillary equipment serial communication interface to be provided; Described microprocessor connects respectively described external SRAM expansion module, described Flash expansion module, described SD card expansion module so that external memory space to be provided; Described power module connects respectively described microprocessor, described LED driver module, described LED display, described wireless network communication module, described serial communication interface, described external SRAM expansion module, described Flash expansion module, described SD card expansion module, described audio driven module and described audio card so that working power to be provided.
Based on above-mentioned, described power module comprises civil power AM access module and standby power supply module, described microprocessor is also connected with supply voltage detection module and electrical source exchange module, described supply voltage detection module detects the voltage of described power module, and described microprocessor switches the duty of civil power AM access module and standby power supply module according to the testing result of described supply voltage detection module.
Based on above-mentioned, on described LED picture and text screen, be provided with solar panel, described standby power supply module is rechargable power supplies module, described solar panel provides electric energy for described standby power supply module.
The relative prior art of the utility model has substantive distinguishing features and progress, specifically, this LED picture and text screen can be saved the energy to greatest extent, and can keeping system stablize, it has advantages of design science, low-power consumption, operating efficiency is high, data-handling capacity is strong, display effect is good, stable work in work.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model.
Detailed description of the invention
Below by detailed description of the invention, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a LED picture and text screen, this LED picture and text screen includes microprocessor, LED driver module, LED display, wireless network communication module, serial communication interface, external SRAM expansion module, Flash expansion module, SD card expansion module, audio driven module, audio card and power module; Wherein, described LED drive circuit comprises horizontal drive circuit, column drive circuit, described microprocessor connects respectively described horizontal drive circuit and described column drive circuit, and described horizontal drive circuit is connected respectively described LED display with column drive circuit and shows data, refreshes demonstration data and drive described LED display to show to write in advance; Described microprocessor connects described audio driven module, and described audio driven module connects described audio card and plays to realize audio frequency; Described microprocessor connects described wireless network communication module and described serial communication interface so that wireless and cable network communication interface to be provided, receive host computer wireless transmission in real time or off line play display command; Described microprocessor connects respectively described external SRAM expansion module, described Flash expansion module, described SD card expansion module so that external memory space to be provided; Described power module connects respectively described microprocessor, described LED driver module, described LED display, described wireless network communication module, described serial communication interface, described external SRAM expansion module, described Flash expansion module, described SD card expansion module, described audio driven module and described audio card so that working power to be provided.
This LED picture and text screen can be connected through serial ports with host computer by serial communication interface, receive upper computer software data being set, showing data and played data it, after data receiver, be stored in Flash expanded circuit, SD card expanded circuit, used so that off-line analysis is processed; After off line, microprocessor is by reading the configuration information in storage area, according to the clock value of real-time clock, according to the displaying contents and the play content that arrange in the broadcasting storage area that file circulates fixing, if while there is the demonstration of special efficacy, microprocessor can be in advance to data processing and then carry out Special display effect. In addition, this LED picture and text screen also can carry out real-time communication by wireless network communication module and host computer, shows in real time graph text information and audio-frequency information.
In the utility model, the function of SD card expansion module, FLASH expansion module and external SRAM expansion module is to provide external memory space for microprocessor.
Described power module comprises civil power AM access module and standby power supply module, described microprocessor is also connected with supply voltage detection module and electrical source exchange module, described supply voltage detection module detects the voltage of described power module, and described microprocessor switches the duty of civil power AM access module and standby power supply module according to the testing result of described supply voltage detection module. In other embodiments, on described LED picture and text screen, be provided with solar panel, described standby power supply module is rechargable power supplies module, and described solar panel provides electric energy for described standby power supply module.
For the problem of temporary interruption, the utility model provides stand-by power supply scheme, wherein, for the LED display that is arranged on outdoor broad area, stand-by power supply scheme can also adopt solar charging battery, by connecting solar panel, realizes resource rational utilization.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement detailed description of the invention of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.

Claims (3)

1. a LED picture and text screen, is characterized in that: this LED picture and text screen includes microprocessor, LED driver module, LED display, wireless network communication module, serial communication interface, external SRAM expansion module, Flash expansion module, SD card expansion module, audio driven module, audio card and power module; Wherein, described LED drive circuit comprises horizontal drive circuit, column drive circuit, described microprocessor connects respectively described horizontal drive circuit and described column drive circuit, and described horizontal drive circuit is connected respectively described LED display with column drive circuit and shows data, refreshes demonstration data and drive described LED display to show to write in advance; Described microprocessor connects described audio driven module, and described audio driven module connects described audio card and plays to realize audio frequency; Described microprocessor connects described wireless network communication module and described serial communication interface so that wireless and cable network communication interface to be provided, receive host computer wireless transmission in real time or off line play display command; Described microprocessor connects respectively described external SRAM expansion module, described Flash expansion module, described SD card expansion module so that external memory space to be provided; Described power module connects respectively described microprocessor, described LED driver module, described LED display, described wireless network communication module, described serial communication interface, described external SRAM expansion module, described Flash expansion module, described SD card expansion module, described audio driven module and described audio card so that working power to be provided.
2. LED picture and text screen according to claim 1, it is characterized in that: described power module comprises civil power AM access module and standby power supply module, described microprocessor is also connected with supply voltage detection module and electrical source exchange module, described supply voltage detection module detects the voltage of described power module, and described microprocessor switches the duty of civil power AM access module and standby power supply module according to the testing result of described supply voltage detection module.
3. LED picture and text according to claim 2 screen, is characterized in that: on described LED picture and text screen, be provided with solar panel, described standby power supply module is rechargable power supplies module, and described solar panel provides electric energy for described standby power supply module.
CN201521032660.4U 2015-12-14 2015-12-14 LED picture and text screen Active CN205247835U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521032660.4U CN205247835U (en) 2015-12-14 2015-12-14 LED picture and text screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521032660.4U CN205247835U (en) 2015-12-14 2015-12-14 LED picture and text screen

Publications (1)

Publication Number Publication Date
CN205247835U true CN205247835U (en) 2016-05-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521032660.4U Active CN205247835U (en) 2015-12-14 2015-12-14 LED picture and text screen

Country Status (1)

Country Link
CN (1) CN205247835U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CB03 Change of inventor or designer information

Inventor after: Huang Haiyan

Inventor after: Zhang Wei

Inventor after: Chen Guangbin

Inventor before: Huang Haiyan

Inventor before: Zhang Wei

Inventor before: Chen Guangbin

COR Change of bibliographic data
TR01 Transfer of patent right

Effective date of registration: 20201230

Address after: 450000 No.120, bee Zhang street, Erqi District, Zhengzhou City, Henan Province

Patentee after: Henan shengzhiyuan transportation facilities Co.,Ltd.

Address before: 450001 No.399, West Fourth Ring Road, high tech Zone, Zhengzhou City, Henan Province

Patentee before: ZHENGZHOU ZHENG'AN TRAFFIC TECHNOLOGY DEVELOPMENT Co.,Ltd.

TR01 Transfer of patent right