CN203287885U - Real-time information modification display system for small LED (Light Emitting Diode) screen - Google Patents

Abstract

The utility model provides a real-time information modification display system for a small LED (Light Emitting Diode) screen. The real-time information modification display system comprises a control terminal, two information transceiving modules and a display terminal, wherein the control terminal comprises an information editing module and an information processing module; the information editing module consists of a first microprocessor, an LCD (Liquid Crystal Display) screen, a keyboard and a driving circuit of the keyboard; the information processing module consists of the first microprocessor and a storage medium; the display terminal comprises an information display module; the information display module consists of a second microprocessor and an LED screen; the two information transceiving modules are wireless modules and are respectively positioned at the upper parts of the control terminal and the display terminal; the two information transceiving modules and the control terminal share the first microprocessor, and the two information transceiving modules and the display terminal share the second microprocessor. The system is convenient to carry, real-time in information modification, convenient to operate, stable in performance and low in cost, and can be widely applied to small splicing type plain text display LED screens.

Description

Compact LED screen information real time modifying display system

Technical field

The utility model belongs to the Electromechanical Control field, is specifically related to a kind of information real time modifying display system, can be widely used in small-sized Spliced type plain text and show the LED screen.

Background technology

The compact LED screen is as a kind of Message Display Terminal, and because its luminescence efficiency is high, configuration is flexible, and long service life can show text message for a long time, is widely used in the places such as retailer agency, bank, medium and small sized enterprises.

The compact LED screen display system mainly is comprised of control terminal, transmission medium and display terminal three parts.According to the difference of control terminal and transmission medium, existing correlation technique is broadly divided into following several working method:

1., take PC as control terminal, adopt the RS-232 Serial Port Line to realize the working method of data transmission, the user crosses software by keyboard and MouseAcross and realizes message composition, and character pattern data is transferred to the LED screen through the RS-232 Serial Port Line and realizes showing.

2. take PC as control terminal, adopt USB flash disk to realize the working method of data transmission as storage medium, the user writes information text by keyboard and mouse, and information text is saved in USB flash disk, again USB flash disk is inserted display terminal, by display terminal, carry out text identification and demonstration.

3., take PC as control terminal, adopt GSM short message wireless transmission method, the user crosses software by keyboard and MouseAcross and realizes message composition, and the gsm module of character pattern data through with PC, being connected sends, and display terminal also shows after supporting with it gsm module receives.

With embedded equipment (comprising mobile phone, CPU take ARM as core) as control terminal, adopt wireless type transmission mode (comprising GSM short message, GPRS network etc.) user to write information by specific human-computer interaction module, character pattern data transmits through the wireless module of paired (or one-to-many), then by display terminal, is realized showing.

Take a broad view of above working method, in reality is promoted and applied, have certain deficiency.

1. portable poor

Based on the control terminal of PC, large, the removable performance of volume is poor, make use PC can't be portable as the compact LED screen display system of control terminal, place is relatively fixing in actual use.

2. cost is high

With PC, mobile phone or use ARM as the embedded equipment of core as control terminal, cost is high, power consumption is large, causes use cost high; And based on the gsm wireless transmission mode, need be equipped to right GSM receiving/transmitting device, make again the intrinsic cost of system improve.

3.PC during as control terminal, information is difficult for real time modifying

Realize under the working method of data transmission as storage medium as control terminal, RS-232 Serial Port Line connected mode or gsm wireless module transmission mode or USB flash disk using PC, PC is many in indoor use, and the LED screen mostly is the outdoor information display terminal, be that the display terminal multidigit is in the non-direct-view scope of control terminal, the user is when revising the LED on-screen-display message and being confirmed whether to be successfully modified, must beat up and down between the two, this process takes time and effort.

4. a little less than popularization

Actual state that can not real time modifying to non-direct-view screen information in portable weak and actual use of the high production cost of existing compact LED information display system and use cost, control terminal, directly affect related system popularization in actual use.

Summary of the invention

The purpose of this utility model is a kind of compact LED screen of design information real time modifying display system, when the information that realizes shows, solve the deficiencies in the prior art, make information can realize real time modifying, reduce costs, improve the portability of control terminal, improve the popularization of compact LED screen information display system, enlarge application scenario and usable range.

The technical scheme that its technical matters that solves the utility model adopts is:

Compact LED screen information real time modifying display system, comprise control terminal, signal dispatcher module and display terminal, it is characterized in that, control terminal comprises information editing's module and message processing module, information editing's module is comprised of first microprocessor, LCD screen, keyboard and driving circuit thereof, LCD screen and keyboard connect on the control terminal mainboard corresponding interface separately by connector respectively, and are fixed in the top of control terminal mainboard by screw and nut; Message processing module is comprised of described first microprocessor and storage medium; Display terminal comprises information display module, and information display module is comprised of the second microprocessor and LED screen; Signal dispatcher module adopts wireless module, has two, lays respectively at the top of control terminal and display terminal, and shares first microprocessor, with display terminal, shares the second microprocessor with control terminal respectively.

Control terminal adopts identical circuit with display terminal, and the mainboard of two terminals is separately positioned on the back side of each self terminal.

The utility model compact LED screen information real time modifying display system architectures is compact, simple to operate, with existing compact LED screen display system, compares, and can obtain following beneficial effect:

1. portable strong: the control terminal miniaturization, at utmost utilize the finite space, can realize handheld operation, good portability.

2. cost is low: the microprocessor that system is selected and radio transmission apparatus cost are low, stable performance; Adopt the wireless type transmission mode, save manual routing's cost; And control terminal and display terminal adopt same circuit board, save the design and fabrication cost.

3. information can real time modifying: the user is the direct view led screen of peripheral anywhere at the scene, and the information of completing is revised, and can in time send, show in real time.

4. application prospect is wide: the control terminal compact conformation, and simple to operate, easy to use, and with low cost, therefore application scenario and usable range are wide, popularization is strong.

5. little to external action: system adopts the wireless type transmission mode, when the information that realized transmits in real time, has save the puzzlement that surrounding environment is brought because of connecting line and cabling thereof.

Description of drawings

Fig. 1 is system construction drawing, (a) is structural representation, is (b) the system hardware and software Organization Chart;

Fig. 2 is information editing's functional software functions of modules figure;

Fig. 3 is information processing and sends functional software functions of modules figure;

Fig. 4 is that information receives and Presentation Function software module function figure;

Fig. 5 is the control terminal circuit theory diagrams;

Fig. 6 is the display terminal circuit connection diagram;

Identifier declaration in figure: 1-keyboard, 2-LCD screen, 3-radio receiving transmitting module, 4-radio receiving transmitting module, 5-LED screen.

Embodiment

Compact LED screen information real time modifying display system of the present utility model is comprised of hardware and software two parts, and software section is take hardware as carrier.Fig. 1 (a) is its structural representation, comprise improved control terminal, signal dispatcher module 3,4 and display terminal 5 three parts, keyboard 1 is connected 2 and connects on the control terminal mainboard corresponding interface separately by connector respectively with LCD, and be fixed in the top of control terminal mainboard by screw and nut, signal dispatcher module 3,4 lays respectively at the top of improved control terminal and display terminal 5, and the mainboard of control terminal and display terminal lays respectively at the rear portion of control terminal and display terminal 5.Fig. 1 (b) forms each hardware module of this system and the Organization Chart of each software function module.

1. hardware components

The hardware components of compact LED screen information real time modifying display system consists of control terminal, signal dispatcher module and display terminal.

1) control terminal

Control terminal, take microprocessor (comprising single-chip microcomputer, DSP, ARM, FPGA, CPLD, PC104) as core, can be divided into information editing's module and message processing module from functional perspective.Information editing's module is comprised of microprocessor, LCD screen 2, keyboard 1 and driving circuit thereof; Message processing module is comprised of microprocessor and storage medium (FLASH chip, SD card, TF card), with integrated form or march-past version, presents.Two modules share microprocessor, combining information transceiver module hardware, are equipped with corresponding information editing's functional software module and information processing and sending function software module, realize the sending function of editor, information conversion and the information of information.Simultaneously, wherein microprocessor is also that the signal dispatcher module of control terminal side shares simultaneously.

2) signal dispatcher module

Adopt wireless module (comprising RF, 3G, GSM, GPRS, CDMA, infrared, bluetooth) to realize data transmission, respectively with host's partial common microprocessor, be that control terminal side and control terminal share microprocessor, display terminal side and display terminal share microprocessor.Be equipped with corresponding information processing and sending function software module, information reception and Presentation Function software module, realize the send and receive of information.

3) display terminal

Based on existing compact LED screen, the control circuit of increase take microprocessor (comprising single-chip microcomputer, DSP, ARM, FPGA, CPLD, PC104) as core, combining information transceiver module hardware, information receive reception and the demonstration that realizes demonstration information with the Presentation Function software module.

2. software section

The software section of compact LED screen information real time modifying display system comprises that information editing's functional module, information processing and sending function module, information receive and the Presentation Function module.

1) information editing's functional software module

Information editing's functional software module, take the hardware of control terminal as carrier, is controlled by message processing module, completes message composition and the modify feature realized by keyboard 1, LCD screen 2 and spelling input method, and Fig. 2 is its functional diagram.

2) information processing and sending function software module

Information processing and sending function software module are take the hardware of control terminal as carrier, and the Chinese character that realization will be inputted converts character pattern data to and through wireless module, sends, and Fig. 3 is its functional diagram.

3) information receives and the Presentation Function software module

Information receives with the Presentation Function software module take the hardware of display terminal as carrier, adopts to trigger the serial ports interrupt mode and receive formed word module information, realizes the function of reception information and demonstration, and Fig. 4 is its functional diagram.

Embodiment

The utility model is implemented simple, designs and make control terminal and display terminal mainboard, purchases wireless module, input-output device, transmission interface, then assembles, and can obtain the hardware of LED screen information real time modifying display system.Be implemented as follows:

1. control terminal

It is microprocessor that the control terminal circuit is selected the C8051F020 single-chip microcomputer, adopts ASM1117-3.3 to realize level conversion, take the AT45DB041Flash storage chip as the character pattern data storer.Its circuit theory diagrams are referring to Fig. 5.

1) information editing's module:

This example selects 4*4 array keyboard and 12864 band character library LCD screens as information editing's instrument, selects ZLG7290 chip manufacturing keyboard control circuit, through connecting line, connects control terminal mainboard P2 mouth.Be fixed on the control terminal mainboard by screw-nut again.

2) message processing module:

Increase memory capacity on the external data memory basis in the ram in slice of 4352 (4096+256) of C8051F020 single-chip microcomputer itself byte and addressable 64K byte address space, in order to deposit the Song typeface 16*16 Hanzi font library of 262K, this example selects the AT45DB041Flash storage chip as the character pattern data storer.Access AT45DB041 after the Chinese character that single-chip microcomputer obtains inputting, search the corresponding character pattern data of each Chinese character, character pattern data is extracted and sends by wireless module.

2. signal dispatcher module

This example selects KYL-610 micropower wireless data transfer module to realize data transmission, and wherein signal dispatcher module 3 connects the control terminal mainboard by connector, is embedded in information editing's module below, control terminal mainboard top; Signal dispatcher module 4 connects the display terminal mainboard by connector, is placed in LED screen rear.

3. display terminal

For reducing cost of manufacture, display terminal circuit and control terminal circuit adopt same circuit, and the display terminal mainboard is placed in LED screen rear, and its circuit theory diagrams are referring to Fig. 5.The 8*2 data-interface is left at the existing 16*32 point matrix LED screen back side, through connecting line, connects the display terminal mainboard, and its connection layout is referring to Fig. 6.

4. other parts

1) power supply: adopting 3 joint 1.5V dry cells is system control terminal main board power supply.LED screen and display terminal mainboard are connected mains-supplied by+5V/10A Switching Power Supply.

2) control terminal mounting box: in this example, adopt high 15cm, wide 10cm, thickness are that the 5cm plastic casing is made into portable control terminal mounting box, are used for laying the related hardware of control terminal.

Use of the present utility model and simple to operate, operating process is as follows:

1) user's Chinese character of adopting spelling input method input to show by keyboard;

2) show the Chinese character inputting interface according to the LCD screen display, can delete or revise displaying contents;

3) input complete after, ACK button on the some beating keyboard, confirm to revise;

4) LED screen display content is namely revised, and completes modification.

Compact LED screen information real time modifying display system of the present utility model, easy to carry, information is revised in time, and is easy to operate, and stable performance is with low cost.

Claims (2)

1. compact LED shields information real time modifying display system, comprise control terminal, signal dispatcher module and display terminal, it is characterized in that, control terminal comprises information editing's module and message processing module, information editing's module is comprised of first microprocessor, LCD screen, keyboard and driving circuit thereof, LCD screen and keyboard connect corresponding interface separately on the control terminal mainboard by connector respectively, and are fixed in the top of control terminal mainboard by screw and nut; Message processing module is comprised of described first microprocessor and storage medium; Display terminal comprises information display module, and information display module is comprised of the second microprocessor and LED screen; Signal dispatcher module adopts wireless module, has two, lays respectively at the top of control terminal and display terminal, and shares first microprocessor, with display terminal, shares the second microprocessor with control terminal respectively.

2. compact LED screen information real time modifying display system according to claim 1, is characterized in that, control terminal adopts identical circuit with display terminal, and the mainboard of two terminals is separately positioned on the back side of each self terminal.

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