Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, first provide a kind of LED display cascade system, the sub-controller interface in this cascade system is less, and according to random order cascade, and can need not change position between each sub-controller; Next provides a kind of control method being applied to above-mentioned LED display cascade system.
Technical scheme of the present invention is as follows:
A kind of LED display screen system, comprising: LED screen body signal generation apparatus, some sub-controllers and the some display modules that connect corresponding to each described sub-controller;
Described sub-controller comprises cascade input module, cascaded-output module, memory module and display control module, described display control module is connected between described cascade input module and described cascaded-output module, described memory module is connected with described display control module, for reading and storing the location information data of described sub-controller, call for described display control module; Sub-controller described in each respectively by described cascade input module and described cascaded-output module connected in series;
Described LED screen body signal generation apparatus is connected with the cascade input module of the first sub-controller being positioned at initiating terminal connected in series, for generating the location information data of each described sub-controller according to the locus of each described sub-controller; Series display Data Concurrent also for generating described LED display each lamp point delivers to the cascade input module of described first sub-controller, and wherein, described series display packet contains station location marker, described station location marker and described location information data one_to_one corresponding;
Described display control module is according to the described location information data read from described memory module, and the described location mark in described series display data, intercept from described series display data and show data accordingly, be sent to the described display module that described in its place, sub-controller correspondence connects, to realize luminescence display.
Described LED display screen system, described LED screen body signal generation apparatus arranges a locus module, for receiving the information of the locus of each described sub-controller, generate the location information data of each described sub-controller according to the locus of each described sub-controller.
Described LED display screen system, described LED screen body signal generation apparatus arranges a station location marker module, for the location information data according to each described sub-controller, one_to_one corresponding generates the station location marker of each described sub-controller, and the series display Data Concurrent generating described LED display each lamp point accordingly by described LED screen body signal generation apparatus delivers to the cascade input module of described first sub-controller.
Described LED display screen system, described LED screen body signal generation apparatus adopts USB, cable network or radio network interface, is connected with the cascade input module of described first sub-controller.
Described LED display screen system, each described display module and each described sub-controller connect one to one respectively.
Described LED display screen system, described memory module is non-volatile memory chip.
Be applied to a control method for above-mentioned LED display screen system, comprise the following steps:
Step 1: the location information data generating each sub-controller connected in series;
Step 2: transmit described location information data to each described sub-controller;
Step 3: described location information data is stored in its memory module by each described sub-controller respectively;
Step 4: according to the locus of each described sub-controller, the series display Data Concurrent generating described LED display each lamp point delivers to each described sub-controller; Wherein, described series display packet contains station location marker, described station location marker and described location information data one_to_one corresponding;
Step 5: each described display control module is according to respectively from the described memory module of its corresponding described sub-controller, read corresponding described location information data, and, the described location mark that comprises in described series display data, intercept from described series display data accordingly and show data accordingly.
Described control method, by USB, cable network or radio network interface transmission data.
Described control method, adopts non-volatile memories mode to carry out data storage.
Described control method, adopts first-in first-out to carry out data storage.
Adopt such scheme, the present invention by arranging the memory module of storage address information data in sub-controller, and make sub-controller can be intelligentized connected in series arbitrarily, do not need connected in series in a fixed order, the restriction of installation environment in the middle of application, can be broken through.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 3, Figure 4, first the present invention provides a kind of LED display screen system, it comprises: some sub-controller 10 to sub-controller 10N of LED screen body signal generation apparatus 12, successively cascade, corresponding display module 11 to the display module 11N connected of some and above-mentioned sub-controller.
LED screen body signal generation apparatus 12 sub-controller 10 to sub-controller 10N initiating terminal i.e. first sub-controller 10 connected in series with cascade is connected, the locus of each sub-controller is obtained by artificial observation, such as sub-controller is arranged in which which row of display screen box body, be input in LED screen body signal generation apparatus 12 afterwards, LED screen body signal generation apparatus 12 generates the location information data of sub-controller 10 to sub-controller 10N; Or, the locus of each sub-controller is inputted by program; Such as, by the said shank pre-seted, by computer, hand-held input terminal or computer-readable recording medium etc., input the locus of each sub-controller.LED screen body signal generation apparatus 12 also generates the series display data of each lamp point of LED display and sends to sub-controller 10 to sub-controller 10N, and series display packet contains the location mark corresponding with above-mentioned location information data; Some display module 11 to display module 11N are corresponding with sub-controller 10 to sub-controller 10N to be connected, the series display data luminescence display corresponding according to each display module 11 to display module 11N.
As shown in Figure 3, sub-controller 10 to sub-controller 10N structure in the present invention is identical, for sub-controller 10 explanation, it comprises cascade input module 13, cascaded-output module 16, memory module 15 and display control module 14, sub-controller 10 to sub-controller 10N by cascade input module 13 and cascaded-output module 16 connected in series; Display control module 14 is connected between cascade input module 13 and cascaded-output module 16, memory module 15 is connected with display control module 14, for storing the location information data of sub-controller 10, display control module 14 is according to the location information data read from memory module 15, and the described location mark comprised in described series display data, intercept from described series display data and show data accordingly.
Preferably, the memory module in above-mentioned LED display screen system adopts non-volatile memory chip, and after such power down, data can not be lost, and do not need again to write after powering on next time.
In practical application, after each box location of LED display is fixing, according to the condition of construction of reality, each casing is connected, operation LED screen body signal generation apparatus 12, generate the location information data of each sub-controller, be written in the middle of memory module 15 by the cascade input port of each sub-controller, then the cascade display data of screen body are generated and sent by LED screen body signal generation apparatus, each casing is according to the described location mark comprised in respective positional information and described series display data, intercept each self-corresponding display data, complete display.
Embodiment 2
As shown in Figure 5, whole display screen is divided into A ~ F totally 6 regions, corresponding each casing is casing 111, casing 1113, casing 1115, casing 1111, casing 1112, casing 1114, corresponding each sub-controller is sub-controller 10, sub-controller 103, sub-controller 105, sub-controller 101, sub-controller 102, sub-controller 104, and corresponding display module is respectively display module 11, display module 1103, display module 1105, display module 1101, display module 1102, display module 1104.Suppose between casing 111 and 1113, because erecting bed reason cannot directly be connected between 1113 with 1115, therefore to have employed from casing 111 level header body 1111 successively, casing 1112, casing 1113, casing 1114, sub-controller 10 to sub-controller 105 in casing 1115, complete the structure of LED display screen system, in like manner, if because job site reason cannot directly connect between other any casings, also other forms of cascade system can be adopted, solve job site and limit to the difficult problem brought, breach in prior art, after box location is fixing, the present situation that between each casing, annexation is fixed thereupon.
Preferably, can a locus module (not shown) be set in above-mentioned LED screen body signal generation apparatus 12, for receiving the information of the locus of each described sub-controller, then generate the location information data of each described sub-controller according to the locus of each described sub-controller.Such as, by active receive mode, as the mode or on time, by modes such as trigger conditions, receive the information of the locus of each described sub-controller of automatic acquisition information; Or, by passive receive mode, as received the information etc. of input, receive the information of the locus of each described sub-controller.
Preferably, one station location marker module (not shown) can also be set in above-mentioned LED screen body signal generation apparatus 12, for the location information data according to each described sub-controller, one_to_one corresponding generates the station location marker of each described sub-controller, and the series display Data Concurrent generating described LED display each lamp point accordingly by described LED screen body signal generation apparatus delivers to the cascade input module of described first sub-controller 10.
Preferably, above-mentioned LED screen body signal generation apparatus 12 adopts USB, cable network or radio network interface, is connected with the cascade input module of described first sub-controller.
Preferably, each described display module 11 to display module 11N and each described sub-controller 10 to sub-controller 10N connects one to one respectively.
Embodiment 3
The present invention also provides a kind of control method of above-mentioned LED display, and be applied in the LED display screen system of above-mentioned each example, the method comprises the following steps
Step 1: the location information data generating each sub-controller connected in series;
Step 2: transmit described location information data to each described sub-controller;
Step 3: described location information data is stored in its memory module by each described sub-controller respectively;
Step 4: according to the locus of each described sub-controller, the series display Data Concurrent generating described LED display each lamp point delivers to each described sub-controller; Wherein, described series display packet contains station location marker, described station location marker and described location information data one_to_one corresponding;
Step 5: each described display control module is according to respectively from the described memory module of its corresponding described sub-controller, read corresponding described location information data, and, the described location mark that comprises in described series display data, intercept from described series display data accordingly and show data accordingly.
Such as, in above-mentioned arbitrary steps, by USB, cable network or radio network interface transmission data.
Composition graphs 5 and Fig. 6, specifically, system is built according to the connection order shown in Fig. 5, after completion system hardware configuration is built, the location information data of sub-controller 10 to sub-controller 105 is generated by screen body signal generation apparatus 12, the positional information of such as sub-controller 10 to sub-controller 105 can be A, B, C, D, E, F, pass through holding wire, from screen body signal generation apparatus 12 to sub-controller 10 to sub-controller 105 download location information data A, B, C, D, E, F, by location information data A, B, C, D, E, F is stored in the storage chip of sub-controller 10 to sub-controller 105 successively respectively, the series display Data Concurrent generating each lamp point of LED display by screen body signal generation apparatus 12 delivers to the cascade input interface of sub-controller 10, local data in serial data is identified in order to make each sub-controller, need to arrange the location mark corresponding with above-mentioned location information data in the serial data that each sub-controller is corresponding, as shown in Figure 6, serial data comprises the display data of 6 viewing areas of sub-controller 10 to sub-controller 105 correspondence, and the Data Start of every part has a location mark, for identifying the data that this partial data is which part of screen body, when each sub-controller intercepts packet successively, select the part data that in packet, location mark is corresponding with the positional information stored in the storage chip of each sub-controller, for the display of casing at the corresponding levels, after intercepting terminates, entire packet former state is transmitted to subordinate's sub-controller, until each controller has intercepted each self-corresponding display data, each casing completes display simultaneously.
Preferably, the memory module in above-mentioned LED display screen system adopts non-volatile memory chip, and after such power down, data can not be lost, and do not need again to write after powering on next time.
Preferably, above-mentioned storage chip adopts first-in first-out to carry out data storage.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.