CN2826591Y - Electronic signboard - Google Patents

Abstract

The utility model relates to an electronic signboard, which comprises a PC, a single chip computer and a display screen. The utility model has the primary structure that the display screen is a dot matrix LED display screen, and the periphery of the display screen is provided with a circle of color LEDs for display; the PC delivers contents which need displaying to a control circuit of the single chip computer U1 after data coding through a serial communication mode, and the contents which is after data decoding, decoding and editing by U1 are delivered into the dot matrix LED display screen to display corresponding information, such as words, symbols, pictures, etc. through a driving display circuit according to a set requirement; a shift register drives UR1-UR32 to display word and picture information, and meantime, a shift register control display is used for scrolling color LEDs.

Description

Electronic signs

Technical field

The utility model relates to display device, mainly is meant a kind of electronic signs.

Background technology

Usually the display device is made up of by arranged light emitting diode of signboard can display text, character and picture, animation, input of calculating function and the information such as graphical symbol of editing.Because it has that control is simple, cost is low, demonstration is various and characteristics such as bright in luster, has obtained application more and more widely at present.As on the square, the bigger occasion of flow of personnel such as market, station, shopping mall, signboard is accepted by people as the billboard or the billboard of scrolling information.Present existing signboard all exist upgrade inconvenience, content single, can't reflect information and the high deficiency of expense that businessman makes product immediately, can not satisfy the requirement of social large information capacity.

Summary of the invention

The purpose of this utility model provides a kind of arbitrarily update displayed information and shows diversified electronic signs, to attract people to note, satisfy businessman and solicit customers or business and the instant purpose of propagating own product, to overcome the defective that existing signboard exists, increase the functions of use of LED display simultaneously.

The realization the technical solution of the utility model is: this electronic signs comprise PC, single-chip microcomputer and display screen, and its primary structure is that described display screen is the dot matrix LED display, and its periphery is provided with a circle color LED and shows; Described PC is sent into single-chip microcomputer U1 control circuit through after the digital coding by the serial communication mode with content to display, after carrying out data decryption, decoding and editing and processing by U1, send the dot matrix LED display to demonstrate information such as corresponding literal, symbol, picture by setting requirement through driving display circuit, and drive outer ring color LED roll display.

This technical scheme also comprises:

Described single-chip microcomputer U1 receives, stores, handles the information of PC, and by output interface contact matrix LED display screen, drives UR1-UR32 by shift register and show graph text information, and the while is by shift register U12, U13, U14 control display scrolling color LED.

Described single-chip microcomputer U1 control circuit comprises single-chip microcomputer U1 and the ROM that is attached thereto storage U2, RAM storage U3, general data latch U4 and U7, level conversion U5, latch U8 or a U9, perpetual calendar clock U10, impact damper A1 and A2, reverser A3, code translator U17, pull-up resistor RR1 and RR2,8 toggle switch TT1, interface DD1 and DD2; Described driving display circuit comprises data buffer U11, shift register U12-U14, shift register UR1-UR64, red light emitting diodes LEDR1-LEDR8, green LED LEDG1-LEDG8, blue LED LEDB1-LEDB8, light-emitting diode group D01-D32, interface INT and OUT; Delivery outlet DD1, DD2 carry out cascade by signal input INT mouth, output OUT mouth in the foregoing circuit.

In the described circuit, U1:8051, U2:27C020, U3:628128, U4 and U7:HC373, U5:MAX232, U8:HC374, U9:74HC32, U10:DS1302, U11:74HC541, U12, U13, U14:74HC595, U17:74HC138, A1 and A2:74HC244, A3:74HC04, UR1-UR32:62726.

Described display screen is that pros and cons shows the content unanimity.

The utility model one circle color LED, make LED display have neon bulb and the various function of demonstration, can be used as a kind of novel information medium, can realize news, weather, constantly, the real-time release of the various businessmans first information such as advertisement and promotional product, have contain much information, characteristics such as content update is fast, demonstration in good time.Therefore these electronic signs can be extended to such as places such as shop, supermarkets, make it both can adapt to the needs of service industry's modern service, have brought new media advertisement circulation way for advertising again, for LED display has increased purposes widely.

Description of drawings

Fig. 1 is a general structure block diagram of the present utility model, wherein 1PC machine, 2 single-chip microcomputers, 3LED color lamp, 4LED display screen.

Fig. 2 is a Single-chip Controlling signal processing circuit schematic diagram of the present utility model.

Fig. 3-Fig. 8 is a driving display circuit schematic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

Design a kind of LED display, this display screen includes dot matrix LED display 4, outside one circle color LED 3 and single-chip microcomputer 2 controls.The output interface contact matrix LED display screen 4 of single-chip microcomputer 2 controls.Design proposal of the present utility model is exactly the color LED demonstration that makes a circle outside having increased on enlarging existing dot matrix LED display function basis, in the PC 1 of transmitting terminal, move editing and processing, send Control Software System, like this, content to display is sent into single-chip microcomputer 2 control system through after the digital coding by the serial communication mode, carry out data decryption by single-chip microcomputer, decoding and editing and processing, send dot matrix LED display 4 to demonstrate corresponding literal by setting requirement then, symbol, information such as picture, calling one to one according to various editors' display effect, display routine demonstrates various effects, outside one circle color LED shows various rolling effects, bright in luster, increase attractive force.

As shown in Figure 1, the utility model shows that with color LED 3 connect to form by PC 1, single-chip microcomputer 2 controls and dot matrix LED display 4.Single-chip Controlling receives the information that PC sends, monolithic processor controlled output interface contact matrix LED display screen.Single-chip Controlling is as the editing and processing device of information, the various graph text informations that the host computer PC that receives is compiled deposit in the corresponding memory space earlier, CPU carries out analyzing and processing according to the requirement of Information sign position, arrange DISPLAY ORDER, the introducing mode, lead-out mode, the demonstration time, contents such as the peripheral color LED display mode of display speed, access the corresponding display message in proper order that PC sends then, according to result and requirement, constantly be sent in the dot matrix LED display, by shift register 62726 showing one act one act of graph text information with various corresponding display modes, simultaneously by shift register 74HC595 control display scrolling color LED, it is more eye-catching that it is had, noticeable, reach a kind of purpose of advertisement.The utility model is to adopt double-sided display simultaneously, and positive demonstration the shown in the promptly last figure, just living demonstration, purpose being arranged also behind again is to see this information more easily for the front and back pedestrian.

The circuit theory diagrams explanation:

Fig. 1 is the schematic diagram of single-chip computer control system.Its major function is to receive the information stores that host computer sends, and shows and the color LED demonstration according to corresponding requirement control LED dot matrix simultaneously, and content to display is all shown.

Fig. 3-Fig. 8 is that the LED dot matrix drives displaying principle figure and color LED drive principle figure.Major function is that shift register 62726 and 74HC595 import by the data shift of single-chip microcomputer, and output drives the LED light emitting diode of respective points, has so just reached the purpose that shows.

Method of attachment, circuit are formed, the description of the course of work:

1, PC is controlled transmission by the communication serial ports then by the various information of Control Software editor, sends out the various information that editted to Single-chip Controlling.

2, after single-chip computer control system receives the information that PC sends over, store immediately,, output to corresponding each act content that display driver demonstrates and sends through handling accordingly.

3, Fig. 2 is the Single-chip Controlling signal processing circuit, its COM port or COM device or COM1 links to each other with the serial ports of PC, RXD among the figure receives data and TXD and sends data, ground wire and link to each other with the corresponding pin of communication serial ports of PC and get final product, circuit receives that intact just the outputing to of signal Processing drives demonstration, it with the pass that links to each other that drives display circuit is: the DD1 among the figure, DD2 are delivery outlet, it links to each other with INT signal input port among second page of figure, because there are two up and down, about also two LED drive plates, so DD1 links to each other with top first INT mouth, DD2 links to each other with following first INT mouth.

4, Fig. 3-Fig. 8 drives display circuit, be the schematic diagram of a drive plate, it can import the INT mouth by signal, output OUT mouth carries out cascade, i.e. the INT of Fig. 2 and OUT, the delivery outlet OUT of first drive plate links to each other with the signal input INT of next piece, and is so just passable.In 6 schematic diagrams, the pin with regard to representing them that the label of each signal is identical is connected together, and what relation the label of itself and Fig. 2 does not have, and promptly the pin of element can not have any relation that links to each other with the back among Fig. 2.

The annexation of integrated circuit model and effect, each pin:

Among Fig. 2, U1:8051, it mainly acts on is the core component of total system, receives the data that PC sends over, and is stored among the RAM, the data output of handling well, after the A3 negate, again by the driving of A2, outputs to interface end DD1 and DD2 then; U2:27C020, it mainly acts on is ROM, is storing the information such as 16 Chinese character dot matrixs, character of standard, single-chip microcomputer is to take out corresponding dot character information according to the information of PC; U3:628128, it mainly acts on is RAM, the information that obtains with processing that single-chip microcomputer receives all is stored in here, takes out corresponding information during demonstration again; U4 and U7:HC373, general data latches, when reading and writing data, latch address; U5:MAX232, this IC mainly makees PC and microcontroller communication is used, and the effect of changing of flatting turn electrifies in the centre; U8:HC374, this also is a latch, latchs the high address line of ROM and RAM; U9:74HC32, be one or, mainly as the chip selection signal of ROM and RAM; U10:DS1302, the perpetual calendar clock chip provides perpetual calendar accurately; A1 and A2:74HC244, impact damper, A1 works for opening and close toggle switch, and A2 is a data output buffer; A3:74HC04, reverser, data negate; U17:74HC138, the 3-8 code translator, native system is deciphered processing for the chip selection signal that ROM and RAM are provided; RR1 and RR2: resistor chain provides and draws function; The B1:3.6V battery, power down can be preserved, and preserves voltage for RAM and 1302 provides power down; U15:MAX1487 (native system keeps, and makes 485 communication usefulness, with 232 communication classes like); TT1: be 8 toggle switchs, select different address codes, can be a plurality of screens simultaneously and upper machine communication; The pin of each element is connected together with regard to the pin of representing them in that this page internal label is identical.

Among Fig. 3, U11:74HC541, data buffer, the signal that system comes out is through the INT mouth, after being input to U11, output to corresponding shift register, the signal of color LED is defeated by three IC such as U12, U13, U14 and is driven the red, green, blue light emitting diode respectively, and the signal of display screen just is defeated by UR1-UR64; U12:74HC595 seals in and goes out (8 output) shift register, and this shows as driving red LED; UR1-UR32:62726 seals in and goes out (16 output) shift register, and the LED that drives display screen shows; LEDR1-LEDR8: be red light emitting diodes, a pin is anodal, and two pin are negative pole, and one page internal label is identical to the end is connected together with regard to the pin of representing them at this page for the pin of each element.

Among Fig. 4, U13 and U14:74HC595 seal in and go out (8 output) shift register, and U13 shows that as driving green LED U14 shows as driving blue led; UR33-UR64:62726 seals in and goes out (16 output) shift register, and the LED that drives display screen shows; LEDG1-LEDG8: be green LED, a pin is anodal, and two pin are negative pole, LEDB1-LEDB8: be blue LED, one pin is anodal, and two pin are negative pole, and one page internal label is identical to the end is connected together with regard to the pin of representing them at second page for the pin of each element.

Among Fig. 5-Fig. 8, D01-D32: be 32 light-emitting diode group, the odd number pin is anodal, the even numbers pin is a negative pole, to draw like this in order drawing convenient in fact, to illustrate that they have 64 pins, form together by 32 LED, be followed successively by: a pin and two pin are first independent LED, and a pin is anodal, and two pin are negative pole, below too, tripod and four pin also are independent LED, and this is second, and tripod is anodal, four pin are negative pole, going to 63 and 64 pin successively down is the 32nd independent LED, and 63 pin are anodal, and 64 pin are negative pole, D01 is equally to each have 32 LED alone to D32, and one page internal label is identical to the end is connected together with regard to the pin of representing them at second page for the pin of each element.

Claims (5)

1. electronic signs comprise PC, single-chip microcomputer and display screen, it is characterized in that described display screen is the dot matrix LED display, and its periphery is provided with a circle color LED and shows; Described PC is sent into single-chip microcomputer U1 control circuit through after the digital coding by the serial communication mode with content to display, after carrying out data decryption, decoding and editing and processing by U1, send the dot matrix LED display to demonstrate information such as corresponding literal, symbol, picture by setting requirement through driving display circuit, and drive outer ring color LED roll display.

2. electronic signs as claimed in claim 1, it is characterized in that described single-chip microcomputer U1 receives, stores, handles the information of PC, and by output interface contact matrix LED display screen, drive UR1-UR32 by shift register and show graph text information, simultaneously by shift register U12, U13, U14 control display scrolling color LED.

3. electronic signs as claimed in claim 1 is characterized in that described single-chip microcomputer U1 control circuit comprises single-chip microcomputer U1 and the ROM that is attached thereto storage U2, RAM storage U3, general data latch U4 and U7, level conversion U5, latch U8 or a U9, perpetual calendar clock U10, impact damper A1 and A2, reverser A3, code translator U17, pull-up resistor RR1 and RR2,8 toggle switch TT1, interface DD1 and DD2; Described driving display circuit comprises data buffer U11, shift register U12-U14, shift register UR1-UR64, red light emitting diodes LEDR1-LEDR8, green LED LEDG1-LEDG8, blue LED LEDB1-LEDB8, light-emitting diode group D01-D32, interface INT and OUT; Delivery outlet DD1, DD2 carry out cascade by signal input INT mouth, output OUT mouth in the foregoing circuit.

4. electronic signs as claimed in claim 1 is characterized in that in the described circuit U1:8051, U2:27C020, U3:628128, U4 and U7:HC373, U5:MAX232, U8:HC374, U9:74HC32, U10:DS1302, U11:74HC541, U12, U13, U14:74HC595, U17:74HC138, A1 and A2:74HC244, A3:74HC04, UR1-UR32:62726.

5. electronic signs as claimed in claim 1 is characterized in that described display screen is that pros and cons shows.

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