CN2911868Y

CN2911868Y - Address codes controlled LED displaying system

Info

Publication number: CN2911868Y
Application number: CNU2006200328905U
Authority: CN
Inventors: 韦韧丝; 莫维佳
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-18
Filing date: 2006-01-18
Publication date: 2007-06-13
Anticipated expiration: 2016-01-18

Abstract

The utility model discloses a high-level computer, a supervisory computer, a line single chip microcomputer(SCM), and a display dot in the luminescent diode tube display system controlled by the address code, which are connected in a grade, and a controlling luminescent diode tube matrix is displayed based on a user command. The high-level computer is connected with a or more supervisory computers, which is serially connected with the line SCM with 16 to 256 line address codes, each line SCM and a power unit are connected in parallelism with 32 to 256 display dots. Each display dot has a luminescent diode tube and an integrated circuit and has a sole dot address code. The system upper computer receives the display picture file, transferring and resolving into the line and dot status data, sending to the supervisory computer, the supervisory computer forwards the line and dot status data to every line SCM, the line SCM receives the command only having the same line address code with the SCM, when the SCM receives the supervisory computer display command, each line SCM simultaneously sends out the command to the line display dot. Each luminescent diode tube is on or off and kept according to the different color to show the required picture up till to get a new command. The system has the advantages of simply wiring, low cost and easy management.

Description

The LED display system of address code control

(1) technical field

The utility model relates to the LED array field of display systems, is specially a kind of LED display system of address code control.

(2) technical background

Because of the needs of propaganda or advertising, large-screen motion graphics display system has swift and violent development in recent years.The quantity of information that the motion graphics display system that neon bulb constitutes shows is limited, and the problem of aspects such as its installation, energy consumption, price and serviceable life, it is popularized be restricted.The advantage of LCD screen is the instantaneity that it releases news, but the selling at exorbitant prices of LCD screen is difficult to as outdoor large display screen curtain.The information promulgating platform of stadium or buildings mainly is to use the display system that LED array constitutes at present.The large LED screen is made up of a plurality of luminous points, and each luminous point is that a plurality of light emitting diodes by different colours constitute, and the matrix of being made up of tens row, tens row luminous points becomes the large LED screen wall.The power lead of so a large amount of light emitting diodes, its connection of signal wire, install very numerous and diversely, its control is also very complicated.Just therefore, its cost is also high, and cost is units up to ten thousand up to every square metre, and the cost of its maintenance is high too, so the general user does not dare to inquire.Therefore, large-scale motion graphics display screen still is difficult to be extensive use of.

(3) utility model content

The purpose of this utility model is the LED display system of a kind of address code control of design, display screen is made of the ranks matrix of diode displaying point, display dot state on every row is by the row Single-chip Controlling, each row single-chip microcomputer is then managed by supervisor, supervisor is connected with host computer, accept the instruction of host computer, constituted the LED display system that PC control supervisor, supervisor are controlled capable single-chip microcomputer, row Single-chip Controlling display dot again like this.

The LED display system of this address code control comprises single-chip microcomputer, the computing machine of light emitting diode lines column matrix and this matrix of control, the host computer of system, supervisor, row single-chip microcomputer, display dot connect step by step, and control and management light emitting diode lines column matrix shows by customer instruction.The host computer of native system is the microcomputer that corresponding application software is installed, and is connected with one or more supervisor.Behind the graphic file or text file of the display graphics of host computer receiving management personnel input, document analysis is row state and dotted state data, and row, dotted state data are sent to supervisor.Supervisor is the single-chip microcomputer that has two communication ports at least, and a communication port of supervisor is connected reception host computer data with host computer, and another communication port is connected in series with 16～256 capable single-chip microcomputers through a bus, sends this row status data to each row single-chip microcomputer.Each row single-chip microcomputer is 8 single-chip microcomputers, comprise row address scrambler and corresponding software, a unique row address sign indicating number is arranged in the row address scrambler, nearly 256 dot address sign indicating numbers are arranged, the row single-chip microcomputer is communicated by letter with supervisor is connected in series, row single-chip microcomputer and direct supply are through two power leads and an order wire and 32～256 display dot parallel connections, and row single-chip microcomputer and display dot are serial communication.Each display dot has the light emitting diode of one or more variable three looks or one or more groups Tricolor LED and has reception, driving and the integrated circuit of address decoder function and be connected, the demoder of integrated circuit has four kinds of state latch outputs, bright, the state that goes out of each colored lights of decision light emitting diode, each display dot respectively has unique dot address sign indicating number in the one's own profession.Every row has 16～256 row display dot of 32～256 display dot and has formed the dot matrix LEDs display screen.

Host computer can connect one or more supervisors under wired or wireless or network mode, that is to say: a host computer can be managed many display screens, forms a large-scale display system.

When the line number of matrix greater than 64 the time, in order to accelerate the display speed of whole screen, can increase by a upper management machine, connect host computer on the upper management machine, be connected with 2～64 supervisors down, the upper management machine receives the host computer instruction, is decomposed into capable status command again to send on each supervisor of being managed, every supervisor is connected with no more than 64 capable single-chip microcomputers, and the instruction of its reception is sent on connected a plurality of capable single-chip microcomputer.

The text file that the host computer receiving management personnel of the LED display system of this address code control edit, as the TXT formatted file, or graphic file, as BMP, JPG formatted file, and be converted into the dot pattern file, the status informations such as color light on and off, multiplicity, time that parameters such as graphic animations form, time, direction are decomposed into each each display dot of row again are set, are sent to supervisor;

Supervisor receives each row, each display dot status information and the storage that host computer transmits successively, and its status command that is decomposed into each row is transmitted to each row single-chip microcomputer; Because of supervisor and row single-chip microcomputer are serial communication mode, so data of each row are that order sends, and send the back supervisor that finishes again to idsplay order of each row single-chip microcomputer;

Each row single-chip microcomputer determines the instruction identical with the one's own profession address code and then receives and preserve, each display dot status data is converted to the frame data bag, when receiving the idsplay order of supervisor, each row single-chip microcomputer sends each point status command packet to each display dot of one's own profession simultaneously; Instruction is sent with serial data, and a packet comprises a series of frame data head, address code, state and end code;

The integrated circuit of each display dot determines the status command that belongs to this dot address sign indicating number, promptly receive and preserve, instruction is converted to the instruction of control each changeable colour light emitting diode of this display dot or each colour cell light emitting diode through demoder, each light emitting diode that integrated circuit drives display dot is bright or go out and keep by command status, up to receiving new instruction.

The advantage of the LED display system of address code control of the present utility model is: 1, can constitute the nearly large-sized luminous matrix of 256 * 256 light emitting diodes, its line is simple, each row light emitting diode has only two power leads and an order wire, need not the row control line, therefore the large LED display system cost of native system is low, with 32 row, 256 row, the display system of single display dot area 10cm * 10cm is an example, its display screen total area reaches more than 80 square metres, the only tens thousand of units of cost are with existing up to a million easily, even the large display screen of millions of units has been compared significant advantage; 2, the structure line because of native system is simple, flexible, easy for installation, and each display dot can insert according to different layouts, can layout become 16 * 16 dot matrix displaying block as 256 points of delegation, so installation and maintenance are all very convenient; 3, display dot luminosity height, each display dot can comprise 1～8 changeable colour light emitting diode or 1～8 group of Tricolor LED, and promptly a display dot can have nearly 24 light emitting diodes; 4, host computer can be connected with wireless or network with a plurality of supervisors and display screen, and centralized management forms light emitting diode (LED) display screen group system, enlarges scale the effect of publicity; 5, host computer is unified processing graphics, text file, is convenient to send immediately literal, static graphics information, and supervisor and the row single-chip microcomputer all need not to set up oneself demonstration character library and shape library, simplified software, the hardware configuration of total system.

(4) description of drawings

Fig. 1 is the embodiment one-piece construction synoptic diagram of the LED display system of this address code control;

Fig. 2 is the connection diagram of a plurality of display dot of LED display system embodiment certain row single-chip microcomputer, power supply and this row of the control of this address code;

Fig. 3 is the circuit diagram of certain display dot of LED display system embodiment of this address code control;

Fig. 4 organizes tri coloured lantern for certain display dot of LED display system embodiment of this address code control more and arranges synoptic diagram.

(5) embodiment

The LED display system embodiment of address code control of the present utility model as shown in Figure 1, the single-chip microcomputer, the computing machine that comprise dot matrix LEDs and gating matrix, system is by host computer, supervisor, single-chip microcomputer, some single-chip microcomputer, the display dot control linkage step by step of going, management control light emitting diode lines column matrix display screen.

The host computer of this routine system connects two supervisors under wired or wireless or network mode; Host computer is general commercial microcomputer, and wired and/or wireless and/or network communication interface is fitted with application software.

The supervisor of native system is the single-chip microcomputer that has two communication ports at least, is connected through wired or wireless or network mode with host computer, and is connected with each row single-chip microcomputer through a communication bus, each row single-chip microcomputer address code of supervisor stored, and application software.This routine system has 32 capable single-chip microcomputers to be connected with supervisor, and the row single-chip microcomputer is 8 single-chip microcomputers, comprises row address scrambler and application software, and its this row of row address scrambler stored can reach 256 each point address code and the unique row address sign indicating number of one's own profession.The serial communication port of row single-chip microcomputer is in parallel through order wire with each display dot of one's own profession single-chip microcomputer management, each display dot status command of the one's own profession that the row single-chip microcomputer sends according to the address code receiving management machine of one's own profession, and be responsible for sending status command bright or that go out to each display dot of one's own profession.The row single-chip microcomputer adopts the strong embedded scm of function in this example, so that upgrade application software, system controlling software.For the small-sized single display screens that are less than 64 row, the supervisor that is connected with host computer is held concurrently to the row single-chip microcomputer, saves capable single-chip microcomputer, supervisor directly through power lead and order wire directly with 32～256 display dot parallel connections.

256 display dot are arranged in the delegation of native system, and as shown in Figure 2, each display dot is in parallel with power supply by 2 power leads, and an order wire is connected in series each display dot and row single-chip microcomputer.Also available these two power leads are as order wire.The circuit of display dot connects as shown in Figure 3, Tricolor LED is arranged and have reception, driving and the integrated circuit of address decoder function and be connected.A unique dot address sign indicating number is respectively arranged during each display dot is expert at, and display dot determines the identical status command of the address code with this point of capable single-chip microcomputer transmission and then accepts execution.As shown in Figure 4, each display dot comprises 8 groups of Tricolor LEDs in this example, 3 light emitting diodes of red, green, blue vertically are arranged as one group in the display dot, the horizontal platoon of many groups, the led color of adjacent set is staggered, as first group from top to bottom be RGB, second group is turquoise red, the 3rd group is blue red green, and the 4th group is RGB again ...The led color difference that each of same display dot is adjacent.The address decoder of display dot will instruct decoding to obtain bright, green bright, the blue bright and four kinds of states that go out entirely of this light emitting diode redness, and driving circuit makes the light emitting diode of each colour cell bright or go out and keep, up to receiving new instruction.

Also can adopt the light emitting diode of one or more variable red, green, blue three looks in the display dot, under the driving of integrated circuit for glowing or green glow or blue light or extinguish four kinds of states.

Claims

The LED display system of 1 one kinds of address code controls comprises light emitting diode lines column matrix and single-chip microcomputer, the computing machine of controlling this matrix, it is characterized in that:

System comprises host computer, supervisor, row single-chip microcomputer, some single-chip microcomputer, display dot, connects management control light emitting diode lines column matrix display screen step by step;

The host computer of native system is connected through wired or wireless or network with one or more supervisor for the corresponding application software microcomputer is installed;

Supervisor is the single-chip microcomputer that has two communication ports at least, and a communication port of supervisor is connected reception host computer data with host computer, and another communication port is connected in series with 16～256 capable single-chip microcomputers through a bus;

Each row single-chip microcomputer is 8 single-chip microcomputers, comprise row address scrambler and corresponding software, a unique row address sign indicating number is arranged in the row address scrambler, nearly 256 dot address sign indicating numbers are arranged, the row single-chip microcomputer is communicated by letter with supervisor is connected in series, and row single-chip microcomputer and direct supply are through two power leads and an order wire and 32～256 display dot parallel connections;

Each display dot has light emitting diode or one or more groups Tricolor LED and the integrated circuit with reception, driving and address decoder function of one or more variable three looks, demoder has four kinds of state latch outputs that each colored lights of decision light emitting diode is bright, go out, and each display dot respectively has unique dot address sign indicating number in the one's own profession.
The LED display system of 2 address code controls according to claim 1 is characterized in that:

When the line number of matrix greater than 64 the time, increase by a upper management machine, connect host computer on the upper management machine, be connected with 2～64 supervisors down, every supervisor is connected with no more than 64 capable single-chip microcomputers.
The LED display system of 3 address code controls according to claim 1 is characterized in that:

For the small-sized single display screens that are less than 64 row, the supervisor that is connected with host computer is held concurrently and to be the row single-chip microcomputer, directly through power lead and order wire directly with 32～256 display dot parallel connections.
The LED display system of 4 address code controls according to claim 1 is characterized in that:

Row single-chip microcomputer and direct supply are through two power leads and 32～256 display dot parallel connections, and these two power leads are also as order wire.
5 LED display systems according to each described address code control in the claim 1 to 4 is characterized in that:

Same display dot has 1～8 group of red, green, blue Tricolor LED, adjacent led color difference.
6 LED display systems according to each described address code control in the claim 1 to 4 is characterized in that:

Same display dot have 1～8 can be rubescent, green, the variable color light emitting diode of blue three color light.