CN2692790Y

CN2692790Y - GSM wireless transmission LED display screen

Info

Publication number: CN2692790Y
Application number: CN 200420043071
Authority: CN
Inventors: 王桥立; 郝宗潮; 姚文洪; 刘秋河
Original assignee: JINGDONGFANG INTELLIGENT DISPLAY TECHNOLOGY Co Ltd SHENZHEN CITY
Current assignee: JINGDONGFANG INTELLIGENT DISPLAY TECHNOLOGY Co Ltd SHENZHEN CITY
Priority date: 2004-02-28
Filing date: 2004-02-28
Publication date: 2005-04-13
Anticipated expiration: 2014-02-28

Abstract

The utility model relates to a GSM wireless transmission LED display screen, comprising a dot matrix LED display screen, a single-chip microcomputer connected with the dot matrix LED display screen and a GSM wireless receiving module connected with the single-chip microcomputer. The dot matrix LED display screen comprises a strip-shaped screen main control circuit and a strip-shaped driving circuit. Through being added and installed with the GSM wireless receiving module, the LED display screen can receive data codes which are edited by a transmitting terminal computer, is transmitted a GSM wireless transmitting module, and needs to be displayed in real time through a GSM network. The LED display screen has the functions random, quick and real-time display. The utility model can adapt to the requirement of service industries and bring a new carrier advertisement propagation mode for advertising industries, increasing more wide usages for the LED display screen.

Description

Gsm wireless transmission LED display

Technical field

The utility model relates to a kind of display device, specifically is meant a kind of GSM (global system for mobile communications) wireless transmission LED display.

Background technology

The LED display display device that to be light emitting diode form by arranged can character display and information such as image.Because characteristics such as its control that has is simple, cost is low and bright in luster have obtained application more and more widely at present.As on the square, the bigger occasion of flow of personnel such as commercial building, station, harbour, airport, LED display is accepted by people as the billboard or the billboard of scrolling information.But, existing LED display, a kind of is to need to be connected with computing machine, realizes the synchronous screen of the real-time control of displaying contents, as the billboard at airport, square, station; A kind of is the off line screen that needs regularly to be imported by computing machine or upgrade shown content, as bar shaped display screen, promotional plate or billboard.Long-range information transmission, particularly mounted LEDs display screen on mobile object can not be realized at random, be reached fast, synchronously to these display screens, just more can not realize the display mode of the many controls of a long-range machine.

Summary of the invention

The purpose of this utility model just provides and a kind ofly can or move the gsm wireless transmission LED display that receives display message at internal fixation on a large scale, to overcome the deficiency of existing apparatus, increases the range of application of LED display.

The purpose of this utility model can be achieved through the following technical solutions:

This gsm wireless transmission LED display comprises PC, gsm module, single-chip microcomputer, LED display, and primary structure is the input interface that the output terminal of gsm wireless receiver module connects single-chip microcomputer, the output interface contact matrix LED display screen of single-chip microcomputer.

The utility model also comprises following technical scheme:

PC connects the gsm wireless sending module, and the gsm wireless sending module connects the gsm wireless receiver module by the GSM net.

Wireless receiving module U13 connects SIM card through module interface JK1, and output RX, the TX of U13 meet single-chip microcomputer U1 through interface J10; The output TXD of U13 meets the chip U9 of feedback circuit through interface IN, and U9 meets single-chip microcomputer U1 through interface OUT1.

Module adopts Q2403A double frequency GSM/GPRS MODEM module.

The beneficial effects of the utility model are:

This LED display is by installing the gsm wireless receiver module additional, LED display has been had at random, function quick and that show in real time, thereby as a kind of novel information medium, need not control by the computing machine separate unit, can realize news, weather, constantly, various information such as advertisement and amusement long-range, wireless, real-time release, therefore can be extended to such as motorbus, mobile place in the zone such as taxi, make it to adapt to the needs of service industry, not only for but also brought new media advertisement circulation way for advertising, for LED display has increased purposes widely.

Description of drawings

Fig. 1 is a theory diagram of the present utility model.

Fig. 2 is a stripe screen main control circuit schematic diagram among Fig. 1.

Fig. 3 is a module receiving circuit schematic diagram among Fig. 1.

Fig. 4 is a feedback circuit schematic diagram among Fig. 1.

Fig. 5 is a row signal circuit schematic diagram.

Fig. 6 is the column signal circuit theory diagrams.

Fig. 7 is a LED dot matrix driving circuit schematic diagram.

Embodiment

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

As shown in the figure, PC of the present utility model is connected with the dot matrix LED display with gsm wireless receiver module U13 and single-chip microcomputer U1 by the gsm wireless sending module and through the GSM net.Wherein, the output terminal of gsm wireless receiver module connects the input interface of single-chip microcomputer, the output interface contact matrix LED display screen of single-chip microcomputer.Gsm wireless receiver module in this device is that the Q2403A double frequency GSM/GPRS MODEM module of WAVECOM company and interface peripherals circuit etc. are partly formed, and receives data by the GSM net.Single-chip microcomputer is as the editing and processing device of information, earlier the information that receives is deposited in the corresponding memory, CPU carries out analyzing and processing according to the requirement of Information sign position, arrange DISPLAY ORDER, introducing mode, lead-out mode, contents such as additional display mode, demonstration time and display speed, then with display message according to result and requirement, constantly be sent in the dot matrix LED display and show.Like this.Want real-time content displayed through digital coding, encrypt the back by a gsm wireless sending module, GSM net with China Mobile or CHINAUNICOM sends to the gsm wireless receiver module, in the coverage of GSM, the gsm wireless receiver module that has corresponding mobile phone card number just can receive the data of sending, the data instant that receives is sent into single-chip microcomputer, carry out data decryption by single-chip microcomputer, decoding and logical process, take out corresponding data content from word-base chip 27C020, again by corresponding display mode by calling display routines different in the single-chip microcomputer, all data are outputed to the displacement chip IC 1 that string advances and goes out, IC2 ... IC20 etc. are above the chip, the current capable signal of gating (is Q1 again, Q2 ... Q8) etc., make the capable signal of one of them effective, so that line data just shows accordingly, in like manner, use the same method and transmit the next line data again to the displacement chip, the gating next line, circulate successively 16 times always, just can on 16 dot matrix LED display, show the whole screen data that receive fully.

The circuit theory diagrams explanation:

Fig. 2 is a bar screen control circuit, comprises single-chip microcomputer U1, and the chip U2, the U3 that are attached thereto, U4, U5, U6, U7, U8, U11, U12, U15, U17 and interface circuit DD1, DD2, RP1, TT1, IO, DB1, J10.Mainly be that the conversion of signals that receives is become to need content displayed, show by the control stripe screen main driving circuit.

Fig. 3 is the module receiving circuit, comprises receiver module U13, SIM card S1, module interface JK1.Mainly be to utilize the SMS of mobile phone to carry out message pick-up, be transmitted to bar screen control circuit then and show.

Fig. 4 is a feedback circuit, comprises chip U9, U10, interface IN, OUT1.Main output signal to the module receiving circuit, signal is confirmed according to receiving that different contents feeds back.

Fig. 5, Fig. 6, Fig. 7 are stripe screen main driving circuits, and these three circuit link together.

Claims

1. a gsm wireless transmits LED display, and it comprises PC, gsm module, single-chip microcomputer, LED display, it is characterized in that the output terminal of gsm wireless receiver module connects the input interface of single-chip microcomputer, the output interface contact matrix LED display screen of single-chip microcomputer.

2. according to the said display screen of claim 1, it is characterized in that PC connects the gsm wireless sending module, the gsm wireless sending module connects the gsm wireless receiver module by the GSM net.

3. according to the said display screen of claim 1, it is characterized in that wireless receiving module U13 connects SIM card through module interface JK1, output RX, the TX of U13 meet single-chip microcomputer U1 through interface J10; The output TXD of U13 meets the chip U9 of feedback circuit through interface IN, and U9 meets single-chip microcomputer U1 through interface OUT1.

4. according to the said display screen of claim 1, it is characterized in that module adopts Q2403A double frequency GSM/GPRSMODEM module.