CN101727830B - Led screen display system - Google Patents
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- CN101727830B CN101727830B CN200910237274.1A CN200910237274A CN101727830B CN 101727830 B CN101727830 B CN 101727830B CN 200910237274 A CN200910237274 A CN 200910237274A CN 101727830 B CN101727830 B CN 101727830B
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Abstract
The invention discloses an LED display system which comprises a detection and control device and an LED display screen, wherein the detection and control device comprises a detection module and a control module; the detection module is provided with a detection submodule, a state feedback submodule and a storage submodule; the control module is provided with a data encoding submodule, a data-check error-correction submodule and a control submodule; the data encoding submodule receives video signals, encodes data and generates display data; the detection submodule is used for detecting the display device and generating detection data; the storage submodule is used for receiving and storing the detection data; the state feedback submodule is used for generating state display data and transmitting the state display data to an external display terminal; the data-check error-correction submodule is used for correcting the display data according to the detection data and transmitting the display data to the control submodule; and the control submodule is used for controlling the display device according to the display data.
Description
Technical field
The present invention relates to a kind of LED light device display technique, particularly, relate to a kind of LED screen display system.
Background technology
Along with the development of LED display technique, LED display application and the brightening of LED decorations are applied because its energy consumption is low, color reducibility is strong, the features such as life-span length, enormous size, exotic shape, be applied to various occasion more and more widely, in the middle of these application, fault detection technique also more and more embodies its importance.LED display application particularly in great occasion, because of the importance of its activity, the judgement thus LED being shown to fault with and the requirement safeguarded also higher.
In the middle of current LED display application, although users have recognized that LED shows the significance of fault detection technique, domestic and international leading firm is also in the research and development carrying out fault detection technique in varying degrees.But be limited by technical strength various factors, current breakdown judge focuses mostly in visual inspection and micro-judgment, and detection means also stays in the offline inspection such as multimeter, oscillograph means, efficiency is low, weak effect, and detection means falls behind, levels of precision is not high, and intelligent level is low.The contradiction of widespread popularity and fault-detecting ability deficiency is also more and more outstanding.
Therefore, prior art existing defects, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of fault detection efficiency high, detect degree of accuracy high, Detection results good, and, the LED screen display system that display effect is good.
Technical scheme of the present invention is as follows: a kind of LED screen display system, wherein, comprises LED display and measuring and controlling device; Described LED display comprises a framework and at least two pcb boards, arbitrary pcb board is arranged at least one LED pixel, and each LED pixel becomes dot matrix to arrange; Described measuring and controlling device comprises detection module and control module, and described detection module arranges detection sub-module, sub module stored and state feedback submodule, described control module setting data encoding submodule, data check error correction submodule and control submodule; Described data encoding submodule is connected with external video source, for receiving outside vision signal, carries out data encoding, generates display data; Comprise the described detection sub-module detecting data generating unit to be connected with described state feedback submodule, described sub module stored, described LED display, described data check error correction submodule respectively, for detecting the circuit state of each circuit between each LED pixel in described LED display and each LED pixel, generate detection data by described detection data generating unit according to described circuit state, send to described data check error correction submodule, described sub module stored and described state feedback submodule respectively by described detection sub-module; Described sub module stored is used for receiving and storing described detection data; Comprise the described state feedback submodule of state display data generating unit for receiving described detection data, data generating unit is shown according to described detection data by described state, analyze the state of described LED display, generation state display data, and described state display data are sent to outside display terminal; Described data check error correction submodule is also connected with described data encoding submodule, described control submodule respectively, for receiving described display data, according to described detection data, correct described display data, further, the display data after correction are sent to described control submodule; Described control submodule is connected with described LED display, for according to the display data after correction, controls described LED display.
Described LED screen display system, wherein, it comprises described display terminal, is connected with described state feedback submodule, for according to described state display data, shows the state of described LED display; Described sub module stored arranges covering storage unit, for adopting the new data that detect to replace original detection data, carrying out covering and storing; Further, described display terminal is also connected with described sub module stored, for analyzing described detection data, shows the performance parameter of described LED display.
Described LED screen display system, wherein, described detection module also arranges a failure warning submodule, be connected with described state feedback submodule, for according to described state display data, generate failure warning signal data, and described failure warning signal data is sent to described display terminal.
Described LED screen display system, wherein, described data encoding submodule arranges coding unit, for arranging network data package form, carries out data encoding according to described package form, and wherein, every frame data are made up of packet header, data, bag tail.
Described LED screen display system, wherein, is connected by super Category-5 twisted pair or optical cable between each module.
Described LED screen display system, wherein, described detection sub-module arranges current detecting unit and/or voltage detection unit, is respectively used to electric current, the voltage of each circuit detected between each LED pixel and/or each LED pixel; Described detection data generating unit is used for generating described detection data according to described electric current and/or voltage.
Described LED screen display system, wherein, arbitrary LED pixel arranges at least one red LED diode, at least one BLUE LED emissions diode and at least one green LEDs diode; Further, the color development area of each LED pixel is identical.
Described LED screen display system, wherein, described LED display arranges at least one identify unit, for identifying each performance parameter of described LED display.
Described LED screen display system, wherein, described identify unit is paper labels or plastic label; Or be that there is the bar code designed according to each performance parameter.
Described LED screen display system, wherein, the surface of described LED display also arranges a black coating or a water barrier.
Adopt such scheme, the present invention is by arranging described measuring and controlling device, and, described measuring and controlling device comprises detection module and control module, detection module can implement real-time detecting & monitoring, analyze the display state of LED display, pass back to display terminal, make LED display system fault detection efficiency high, detection degree of accuracy is high and Detection results is good, and, by returning the malfunction coefficient state of described LED display, and by right detection data analysis, the each performance parameter of described LED display when showing can be obtained, the generation of fault can be found fast, the particular location occurred, and fault type, make maintenance quick and convenient, and, can obtain at any time described LED display show time various failure message and correlation performance parameters, easy to use, control module can carry out real time correction to display data, and make the display degree of accuracy of described display device higher, display effect is better.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1 in the present invention;
Fig. 2 is the schematic diagram of embodiment 2 in the present invention;
Fig. 3 is the schematic diagram of embodiment 3 in the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of LED screen display system, described LED screen display system comprises a LED display and a measuring and controlling device, described measuring and controlling device is used for detecting and controlling described LED display, and described LED display is used for figure, word, letter, animation etc. in display video source file.
Such as, described LED display can be a penetrating LED display, and described penetrating LED display comprises a framework and two or more pieces pcb board, and each pcb board is fixing on said frame, thus forms described penetrating LED display; Further, arbitrary pcb board is arranged one or more LED pixel, each LED pixel becomes dot matrix to arrange; Further, described pcb board is printed with positive source line, power-polar curve, signal wire etc., and other electronic devices and components and electronic circuit is also housed, as electric capacity, resistance etc.
Described measuring and controlling device comprises detection module and control module, and wherein, described detection module arranges detection sub-module, sub module stored and state feedback submodule; Further, described control module setting data encoding submodule, data check error correction submodule and control submodule.
Described data encoding submodule is connected with external video source, such as, be connected with the PC of outside, the content that video file shows by PC is sent to described data encoding submodule by the form of signal, described data encoding submodule receives the vision signal that PC sends, and carries out data encoding, and, generate display data, show to provide described LED display.
Described detection sub-module is connected with described LED display, as with as described in each LED pixel of LED display be connected, whether break down for detecting described LED display, as as described in detection sub-module comprise a detection data generating unit, each LED pixel is detected by described detection sub-module, and whether the connection line between the two LED pixels be connected breaks down, and, described detection data generating unit generates according to described circuit state and detects data, wherein, described detection data are the performance parameter data of each LED pixel display, and be the data that the connection line between each LED pixel and the two LED pixels be connected breaks down, and be each LED pixel, and the trouble-free data of connection line between the two LED pixels be connected.
Wherein, described circuit state is other information of current information, information of voltage or circuit, such as, and the current information of each LED pixel; Or, the information of voltage of each LED pixel; Or, the current information of each LED pixel and information of voltage; Or, other information of the current information of each circuit between each LED pixel, information of voltage or circuit etc.
Such as, current detecting unit is set in described detection sub-module, and described detection data generating unit is used for generating described detection data according to described electric current.Or, voltage detection unit is set in described detection sub-module, and described detection data generating unit is used for generating described detection data according to described voltage.Or, current detecting unit and voltage detection unit are set simultaneously, and described detection data generating unit is used for generating described detection data according to described electric current and described voltage.Wherein, described current detecting unit is for detecting the electric current of each circuit between each LED pixel and each LED pixel, and described voltage detection unit is for detecting the voltage of each circuit between each LED pixel and each LED pixel; Like this, described detection data generating unit just according to described electric current or voltage or simultaneously according to electric current and voltage, can generate described detection data.
And, described detection sub-module is also connected with described state feedback submodule, described sub module stored and described data check error correction submodule respectively, after described detection sub-module generates described detection data, and these detection data are sent to respectively described state feedback submodule, described sub module stored and described data check error correction submodule.
Described sub module stored receives the described detection from described detection sub-module, and, described detection data are stored, described memory module also may be used for storing detection data when described LED display breaks down at every turn, make described LED display maintenance and repair record complete display, be convenient to sum up fault occurrence reason, thus avoid again same fault to occur.Such as, described memory module can be set to semiconductor memory, as internal memory, flash memory etc., or, be magnetic surface storage, as hard disk, floppy disk, tape etc., or, can also be optical memory etc.Such as, described sub module stored can arrange covering storage unit, for adopting the new data that detect to replace original detection data, carries out coverings storage, like this, during calling data wherein, only can occur up-to-date detection data; Or described sub module stored can store the detection data of 10 batches, cover storage unit and override the longest detection data of batch of life period at every turn.
Described state feedback submodule receives and detect data described in described detection sub-module, such as, described state feedback submodule comprises a state display data generating unit, data generating unit is shown according to described detection data by described state, analyze the state of described LED display, generate state display data, such as, analyze the performance parameter data of each LED pixel display, generate the state display data that each LED pixel display performance parameter is normal or make a mistake; Or; analyze the electrical connection state of the connection line between each LED pixel and the two LED pixels that are connected, the connection line generated between LED pixel and the two LED pixels that are connected is state that is normal or that break down display data.
Described state display data are also passed back to outside display terminal by described state feedback submodule, such as described display terminal can be a PC, or be a display module, show according to described state display data by PC or display module, show the state of described LED display, thus can know that described LED display is for breaking down, or non-fault.
And, the detection data in described memory module can also be analyzed by described display terminal, thus obtain each performance parameter of described LED display, as, the brightness data, display gray scale data etc. of each LED pixel of described LED display, by showing the position of breaking down of described LED display, and according to each performance parameter of described LED display when showing, the kind broken down can be known, thus in time described LED display is keeped in repair, described LED display is made to recover normal, easy to maintenance, quick, accurate fast.
Described data check error correction submodule also with data encoding submodule, and described control submodule is connected, the display data generated after coding are sent to described data check error correction submodule by described data encoding submodule, simultaneously, described data check error correction submodule also receives the detection data from described detection sub-module, and, according to described detection data, correct described display data, such as, when described detection sub-module detects a certain LED pixel in described display device, there is loss of data in the data of display, or during data error code, described detection sub-module generates and detects data, detection data are sent to described data check error correction submodule, described data check error correction submodule is according to described detection data, utilize the raw display data that algorithm recovers correct, and, correct display data are sent to described control submodule.
Described control submodule one end is connected with described data check error correction submodule, receive the described display data from described data check error correction submodule, the described control submodule other end is connected with described LED display, for according to described display data, control described LED display, make described LED display show the content of video file to display.
Described LED display shows according to described display data, can figure, word, letter, animation etc. in display video source file.
The present embodiment is by described measuring and controlling device, detection module and control module are set, the display state of described LED display, wire connection state and display performance parameter is detected by detection sub-module, can know whether described LED display breaks down fast, and the kind broken down and each performance parameter when breaking down; And, by described data encoding submodule to encoding video signal data, and according to described detection data, by data check error correction submodule, real time correction is carried out to described display data, make that the present embodiment LED screen display system fault detection efficiency is high, to detect degree of accuracy high and Detection results good, and, fault occurring source can be found out fast, the performance parameter of described LED display when fault occurs, and keep in repair, meanwhile, make the LED display display effect that is connected with this measuring and controlling device good.Such as, detection module and control module can be arranged in an etui, be connected, be convenient to carry separately with LED screen by netting twine, optical cable etc.
Embodiment 2
As shown in Figure 2, on the basis of above-mentioned each example, in described LED screen display system, described measuring and controlling device also comprises described display terminal, and such as, described display terminal can be a display module, described display module is connected with described state feedback submodule, by receiving the described detection data from described state feedback submodule, as man-machine display interface, show the state of described LED display.
Such as, described display terminal can be a LED display module, LCD display or other display modules, by described display terminal, the state of described LED display can be seen very intuitively, such as can show each LED pixel and the connection line be interconnected between two LED pixels in described display device be malfunction or for display normal condition.
And, described display terminal is also connected with described sub module stored, the detection data being stored in described sub module stored are recalled by described display terminal, and, analyze described detection data, obtain each performance parameter of described LED display when showing, and performance parameter record during each fault generation, such as, when described LED display breaks down, when can obtain breaking down by described memory module, each performance parameter of described LED display, find out failure cause fast, make maintenance quick and convenient; Or when occurring by recalling each fault, the performance parameter of described LED display, can sum up fault occurrence reason, avoids same fault occurs again.
Embodiment 3
As shown in Figure 3, on the basis of above-mentioned each example, in described LED screen display system, described detection module also arranges a failure warning submodule, described failure warning submodule is connected with described state feedback submodule, the state display data produced when described state feedback submodule are expressed as, when described LED display breaks down, described failure warning submodule is according to described state display data, generate failure warning signal data, and described failure warning signal data is sent to described display terminal, warning is sent by display terminal, such as, after described display terminal receives described failure warning signal data, by ejecting warning window in real time, and, indication fault point directly perceived and phenomenon of the failure, thus realize the operator scheme of hommization.
Embodiment 4
On the basis of above-mentioned each example, in described LED screen display system, described data encoding submodule is also provided with coding unit, described coding unit is used for arranging network data package form, according to described package form, data encoding is carried out to described vision signal, wherein, every frame data are made up of packet header, data, bag tail.
Because every frame data adopt packet header, data, bag tail composition, every Bao Jun comprises data check and mechanism for correcting errors.When this data coding mode guarantees that data are subject to uncertain interference and loss of data, error code occur in transmitting procedure, the raw data that algorithm recovers correct can be utilized, substantially increase the accuracy rate of error-detecting.
And, be connected by super Category-5 twisted pair or optical cable between each module, it is little that super Category-5 twisted pair has decay, crosstalk is few, and have the ratio (ACR) of higher decay and crosstalk and signal to noise ratio (S/N ratio) (Structural Return Loss), less time delay error, performance is greatly improved; And optical fiber has bandwidth, loss is low, lightweight, antijamming capability is strong, fidelity is high, reliable working performance, cost constantly descend degradation advantage, therefore, be connected by super Category-5 twisted pair or optical cable between each module, better cost performance can be obtained.
Embodiment 5
On the basis of above-mentioned each example, in described LED display, arbitrary LED pixel arranges one or more red LED diode, one or more BLUE LED emissions diode and one or more green LEDs diode; Such as, each LED pixel arranges a red LED diode, a BLUE LED emissions diode and a green LEDs diode, or each LEDLED pixel arranges two red LED diodes, a BLUE LED emissions diode and a green LEDs diode.
Further, the color development area of each LED pixel is identical.Described color development area refers in each LED pixel, redness, green and BLUE LED emissions diode are when luminescence, at CIE (French Commission Internationale de L ' Eclairage, English International Commission onIllumination) 1931 chromaticity diagrams (CIE 1,931 2 ° of Chromaticity Diagram, also claim chromatic diagram) in the region that forms of chromaticity coordinates, or, the region formed at the chromaticity coordinates of CIE1976 even color figure, i.e. the color development area of each LED pixel.The color development area of each LED pixel is identical, then described LED display display is homogeneous, and display effect is very good.
Embodiment 6
On the basis of above-mentioned each example, described LED display arranges at least one identify unit, for identifying each performance parameter of described LED display.
Such as, can only be set to one, identify the performance parameter of described LED display for entirety; Or, multiple identify unit is set and identifies performance parameters different in described LED display respectively.
Such as, the present embodiment can only arrange an identify unit, each performance parameter of described LED display can comprise, the package assembly of described LED display and color development area, such as, described package assembly is, be assembled into quantity and the size of each LED module of described LED display, or, the spacing of adjacent each LED pixel, or, the shape of described LED display and size etc.
Each performance parameter can also be in described LED display, the brightness of each LED light emitting diode and wavelength coverage, in addition, can also identify the shape, size etc. of the color of each LED light emitting diode, encapsulation, size and each LED module.
Or, in the present embodiment described LED display can also arrange two or more identify unit, for identifying the different performance parameter of described LED display, such as, identify unit A and identify unit B is set, identify unit A is for identifying the package assembly of described LED display, and identify unit B is for identifying the color development area of described LED display.
Each identify unit can adopt the mode embedding or paste, the edge part of described LED display can be arranged on, such as, be arranged on each side of described LED display, or be arranged on arbitrary side of described LED display, in addition, can also be arranged on the edge of the side of described LED display, identify unit is arranged on side, identify unit can be made not take the installation site of other electronic devices and components in described LED display, further, do not affect yet the display surface of described LED display specious.
And identify unit embedding is arranged in described LED display, identify unit can be made depositing, use, be not easy to come off in the situation such as transport, make, through the described display device of long storage time, use or transport, still clearly to recognize each performance parameter of described LED display.
And for example, identify unit can be a paper labels or plastic label; Use paper labels can make to wait in use very convenient, such as, on the side that directly paper labels can be pasted onto described LED display or side, identification means is simple, and facilitates.And use plastic label that label can be made more durable, be not easy infringement.
In addition, identify unit can also be each performance parameter had according to described LED display and the bar code that designs, can be shown each specific performance parameter of described LED display by scanning; Adopt bar code, by data are inputted computer, adopt electronic tool management simultaneously, management is standardized more, make finding, convenient, quick when using the described LED display of each performance parameter.
Embodiment 7
On the basis of above-mentioned each example, also one black coating or a water barrier are also set on the surface of described LED display.
Such as, the surface of described LED display also arranges a black coating, and described black coating has the effect of extinction, can as light-absorption layer.The light that described black coating can make each LED pixel of described LED display send is interference-free, or, described black coating also can black rete, is covered the surface of described LED display, namely cover on the display panel of described LED display by the mode of plated film.
Above-mentioned black coating also can be only one deck, two-layer or multilayer black coating.
And for example, the surface of described LED display also arranges a water barrier, described LED display can be made to have the effects such as better waterproof and protection against electric shock, and, described water barrier can be a water-proof coating or a membrane waterproofing, and membrane waterproofing can adopt various waterproof plastic material to be covered the surface of described LED display by the mode of plated film.
Above-mentioned water-proof coating or membrane waterproofing can be only one deck, two-layer or multilayer flashing coating or membrane waterproofing, and, can also be wholely set with described black coating.
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 domain that all should belong to claims of the present invention.
Claims (9)
1. a LED screen display system, is characterized in that, comprises LED display, display terminal and measuring and controlling device;
Described LED display comprises a framework and at least two pcb boards, arbitrary pcb board is arranged at least one LED pixel, and each LED pixel becomes dot matrix to arrange;
Described measuring and controlling device comprises detection module and control module, and described detection module arranges detection sub-module, sub module stored and state feedback submodule, described control module setting data encoding submodule, data check error correction submodule and control submodule;
Described data encoding submodule is connected with external video source, for receiving outside vision signal, carries out data encoding, generates display data;
Comprise the described detection sub-module detecting data generating unit to be connected with described state feedback submodule, described sub module stored, described LED display, described data check error correction submodule respectively, for detecting the circuit state of each circuit between each LED pixel in described LED display and each LED pixel, generate detection data by described detection data generating unit according to described circuit state, send to described data check error correction submodule, described sub module stored and described state feedback submodule respectively by described detection sub-module;
Described sub module stored is used for receiving and storing described detection data;
Comprise the described state feedback submodule of state display data generating unit for receiving described detection data, data generating unit is shown according to described detection data by described state, analyze the state of described LED display, generation state display data, and described state display data are sent to outside display terminal;
Described data check error correction submodule is also connected with described data encoding submodule, described control submodule respectively, for receiving described display data, according to described detection data, correct described display data, further, the display data after correction are sent to described control submodule;
Described control submodule is connected with described LED display, for according to the display data after correction, controls described LED display;
Described display terminal is connected with described state feedback submodule, for according to described state display data, shows the state of described LED display;
Described sub module stored arranges covering storage unit, for adopting the new data that detect to replace original detection data, carrying out covering and storing;
Further, described display terminal is also connected with described sub module stored, for analyzing described detection data, shows the performance parameter of described LED display.
2. LED screen display system according to claim 1, it is characterized in that, described detection module also arranges a failure warning submodule, be connected with described state feedback submodule, for showing data according to described state, generate failure warning signal data, and described failure warning signal data is sent to described display terminal.
3. LED screen display system according to claim 1, is characterized in that, described data encoding submodule arranges coding unit, for arranging network data package form, carry out data encoding according to described package form, wherein, every frame data are made up of packet header, data, bag tail.
4. LED screen display system according to claim 1, is characterized in that, is connected between each module by super Category-5 twisted pair or optical cable.
5. LED screen display system according to claim 1, is characterized in that, described detection sub-module arranges current detecting unit and/or voltage detection unit, is respectively used to electric current, the voltage of each circuit detected between each LED pixel and/or each LED pixel;
Described detection data generating unit is used for generating described detection data according to described electric current and/or voltage.
6. LED screen display system according to claim 1, is characterized in that, arbitrary LED pixel arranges at least one red light emitting diodes, at least one blue LED and at least one green LED; Further, the color development area of each LED pixel is identical.
7. LED screen display system according to claim 1, is characterized in that, described LED display arranges at least one identify unit, for identifying each performance parameter of described LED display.
8. LED screen display system according to claim 7, is characterized in that, described identify unit is paper labels or plastic label; Or be that there is the bar code designed according to each performance parameter.
9. LED screen display system according to claim 1, is characterized in that, the surface of described LED display also arranges a black coating or a water barrier.
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