CN101814259B - LED display system - Google Patents
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- CN101814259B CN101814259B CN200910237055.3A CN200910237055A CN101814259B CN 101814259 B CN101814259 B CN 101814259B CN 200910237055 A CN200910237055 A CN 200910237055A CN 101814259 B CN101814259 B CN 101814259B
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Abstract
The invention discloses an LED display system which comprises a display device and a detection control device; the detection control device comprises a detection module and a control module; the detection module is provided with a detection sub-module and a state return sub-module; the control module is provided with a data encoding sub-module, a data validation error correction sub-module and a control sub-module; the data encoding sub-module receives a video signal to encode data and generate display data; the detection sub-module is used for detecting the display device and generate detection data; the state return sub-module is used for generating state display data and sending the data to an external display terminal; the data validation error correction sub-module is used for correcting the display data according to the detection data, and sending the display data to the control sub-module; and the control sub-module is used for control the display device according to the display data. The LED display system has the advantages of high fault detection efficiency, high detection precision and good detection effect.
Description
Technical field
The present invention relates to a kind of LED lighting device display technique, particularly, relate to a kind of LED display system.
Background technology
Along with the development of LED display technique, LED display application and LED lamp decoration brightening application because of its energy consumption low, color reducibility is strong, the features such as life-span length, enormous size, exotic shape, various occasions have been applied to more and more widely, in the middle of these application, fault detection technique also more and more embodies its importance.The particularly LED display application in great occasion, because of its movable importance, thereby to LED show fault judgement with and safeguard requirement also higher.
In the middle of current LED display application, although having recognized LED, users show the significance of fault detection technique, leading firm is also in the research and development of having carried out in varying degrees fault detection technique both at home and abroad.But be limited by technical strength various factors, current fault judgement focuses mostly in visual inspection and micro-judgment, and detection means also stays in the offline inspection means such as multimeter, oscillograph, 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, there is defect in prior art, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, provide a kind of fault detect efficiency high, detect degree of accuracy high, detect effective, and, the LED display system that display effect is good.
Technical scheme of the present invention is as follows: a kind of LED display system, wherein, comprises display device and measuring and controlling device; Described display device comprises at least one cell board, and described cell board arranges some LED pixels that dot matrix is arranged; Described measuring and controlling device comprises detection module and control module, and described detection module arranges detection sub-module and state feedback submodule, and described control module arranges data encoding submodule, data check error correction submodule and controls submodule; Described data encoding submodule is connected with external video source, for receiving outside vision signal, carries out data encoding, generates and shows data; The described detection sub-module of inclusion test data generating unit is connected with described state feedback submodule, described display device, described data check error correction submodule respectively, for detection of the circuit state of the each circuit between each LED pixel and each LED pixel in described display device, by described detection data generating unit, according to described circuit state, generate and detect data, by described detection sub-module, described detection data are sent to respectively to described data check error correction submodule and described state feedback submodule; The described state feedback submodule that comprises state demonstration data generating unit is for receiving described detection data, by described state, show that data generating unit is according to described detection data, analyze the state of described display device, generation state shows data, and described state is shown to data send to outside display terminal; Described data check error correction submodule is also connected with described data encoding submodule, described control submodule respectively, be used for receiving described demonstration data, according to described detection data, proofread and correct described demonstration data, and, the demonstration data after proofreading and correct are sent to described control submodule; Described control submodule is connected with described display device, for according to the demonstration data after proofreading and correct, controls described display device.
Described LED display system, wherein, described detection sub-module arranges current detecting unit and/or voltage detection unit, is respectively used to detect electric current, the voltage of the each circuit between each LED pixel and/or each LED pixel; Described detection data generating unit is for generating described detection data according to described electric current and/or voltage.
Described LED display system, wherein, it comprises described display terminal, for showing data according to described state, shows the state of described display device.
Described LED display system, wherein, described display terminal also arranges a graphical function sub-modules, for the graphical state that shows described display device.
Described LED display system, wherein, it also comprises a box body; Described detection module, described control module, described display terminal are all arranged in described box body, and the display interface of described display terminal is arranged on the outside of described box body.
Described LED display system, wherein, it also comprises a box body; Described detection module, described control module, described display terminal are all arranged in described box body, and described box body arranges at least one inspection surface, for observing the display interface of described display terminal.
Described LED display system, wherein, arbitrary LED pixel arranges at least one red LED light emitting diode, at least one blue led light emitting diode and at least one green LED light emitting diode; And the color development area of each LED pixel is identical.
Described LED display system, wherein, described display device arranges at least one identify unit, for identifying each performance parameter of described display device.
Described LED display system, wherein, described identify unit is paper labels or plastic label; Or be to there is the bar code designing according to each performance parameter.
Described LED display system, wherein, described display device also arranges at least one driver module, is connected with described control submodule, for according to described demonstration data, drives described display device.
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 be implemented real-time detecting & monitoring, analyze the show state of described display device, pass back to display terminal, make that LED display system fault detect efficiency is high, to detect degree of accuracy high and detect effective, and, by returning the fault show state of described display device, can find fast the generation of fault and the particular location occurring, make to keep in repair quick and convenient; Control module can be corrected in real time to demonstration data, makes the demonstration degree of accuracy of described display device high, and display effect is good.
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.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of LED display system, described LED display system comprises a display device and a measuring and controlling device, described measuring and controlling device for detection of and control described display device, described display device is for display graphics, word, letter, animation etc.
Described display device can be a LED universal display screen or be a transmission LED display or be that a LED shows module etc.Described display device comprises one or more cell boards, each cell board arranges pcb board, on pcb board, be mounted with multiple LED pixels that dot matrix is arranged that are, and, on described pcb board, be printed with positive source line, power-polar curve, signal wire etc., and other electronic devices and components and electronic circuit are 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 and state feedback submodule, and described control module arranges data encoding submodule, data check error correction submodule and controls submodule.
Described data encoding submodule is connected with external video source, for example, be connected with outside PC, the content that PC shows video file sends 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 and show data, to provide described display device to show.
Described detection sub-module is connected with described display device respectively, as with as described in each LED pixel of display device be connected, for detection of described display device, whether break down, as as described in detection sub-module comprise a detection data generating unit, by described detection sub-module, detect each LED pixel, and whether the connection line between the two LED pixels that are connected breaks down, and, described detection data generating unit generates and detects data according to described circuit state, wherein, described detection data are the performance parameter data that each LED pixel shows, and the data that break down for the connection line between each LED pixel and the two LED pixels that are connected, and be each LED pixel, and the trouble-free data of connection line between the two LED pixels that are connected.
Wherein, described circuit state is other information of current information, information of voltage or circuit, for example, 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 current information, information of voltage or the circuit of each circuit between each LED pixel etc.
For example, in described detection sub-module, current detecting unit is set, and described detection data generating unit is for generating described detection data according to described electric current.Or, in described detection sub-module, voltage detection unit is set, and described detection data generating unit is 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 for generating described detection data according to described electric current and described voltage.Wherein, described current detecting unit is for detection of the electric current of the each circuit between each LED pixel and each LED pixel, and described voltage detection unit is for detection of the voltage of the each circuit between each LED pixel and each LED pixel; Like this, described detection data generating unit just can, according to described electric current or voltage or simultaneously according to electric current and voltage, generate described detection data.
Described detection sub-module generates after described detection data, and these detection data are sent to respectively to described data check error correction submodule and described state feedback submodule.
Described state feedback submodule receives and detect data described in described detection sub-module, for example, described state feedback submodule comprises a state and shows data generating unit, by described state, show that data generating unit is according to described detection data, analyze the state of described display device, generation state shows data, for example, analyze the performance parameter data that each LED pixel shows, generate each LED pixel display performance parameter state normal or that make a mistake and show data; Or; the electrical connection state of the connection line between the two LED pixels of analyzing each LED pixel and be connected, the connection line generating between LED pixel and the two LED pixels that are connected is that state normal or that break down shows data.
Described state feedback submodule also shows that by described state data pass back to outside display terminal, for example described display terminal can be a PC, or be a display module, by PC or display module, show according to described state and show data, show the state of described display device, thereby can know that described display device is for breaking down, or non-fault, and, can know the kind breaking down, thereby in time described display device is keeped in repair, make fast described display device recover normal.
Described data check error correction submodule also with data encoding submodule, and described control submodule is connected, described data encoding submodule sends to described data check error correction submodule by the demonstration data that generate after coding, simultaneously, described data check error correction submodule also receives the detection data from described control submodule, and, according to described detection data, correct described demonstration data, for example, when described detection sub-module detects a certain LED pixel in described display device, there is loss of data in the data that show, 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 algorithm to recover correct raw display data, and, correct demonstration data are sent to and give described control submodule.
Described control submodule one end is connected with described data check error correction submodule, reception is from the described demonstration data of described data check error correction submodule, the described control submodule other end is connected with described display device, be used for according to described demonstration data, control described display device, make described display device show the content of video file to display.
Described display device shows according to described demonstration data, figure in can display video source file, word, letter, animation etc.
The present embodiment is by described measuring and controlling device, detection module and control module are set, detection module in real time described in detecting & monitoring display device whether break down, and the kind breaking down, and, malfunction can be passed back to outside display terminal, control module can be according to the testing result of detection module, described demonstration data are corrected in real time, make the present embodiment LED display system fault detect efficiency high, detect degree of accuracy high effective with detection, and, can find out fast fault source occurs, and keep in repair, simultaneously, make the display device display effect that is connected with this measuring and controlling device good.
Embodiment 2
As shown in Figure 2, on the basis of above-mentioned each example, in described LED display system, described measuring and controlling device also comprises described display terminal, and for example, 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 display device.
For example, described display module can be a LED display module, LCD display or other display modules, by described display module, can see very intuitively the state of described display device, for example can show each LED pixel in described display device and interconnect connection line between two LED pixels is malfunction or for showing normal condition.
And described display terminal also arranges a graphical function sub-modules,, by by graphical described display device, show the state of described display device.As, described display device is shown as to structural representation, the structure line of each several part shows when normal in described display device, for green, when in described display device, a certain LED pixel or a certain connection line break down, the line of the structural drawing part at this place becomes redness, to show that this part is for breaking down.
By described display module is set, and described graphical submodule, can very intuitively show that described display device is for breaking down, and the particular location breaking down, make convenience easy to maintenance.
Embodiment 3
On the basis of above-mentioned each example, described measuring and controlling device also comprises a box body; Wherein, described detection module, described control module and described display terminal are all fixedly installed in described box body, and, described display terminal arranges display interface in the outside of described box body, for example, at described box body, one inspection surface is set, can states for observation station the display interface of display terminal.
By each module is arranged in described box body, described box body plays the protective effects such as fixing, waterproof, anticollision to each module and described display terminal, convenient mobile; And the state of described display device is directly checked in outside that can described box body, very directly perceived, and, easy to use.
Or described measuring and controlling device can also arrange and comprise two box bodys; Wherein, described detection module, described control module are arranged in a box body, and described terminal is in another box body, and described display terminal arranges display interface in the outside of described box body; Described detection module, described control control module and described display terminal are arranged respectively, can increase dirigibility separately, at some special occasions, make the use of each module convenient flexibly.
Embodiment 4
On the basis of above-mentioned each example, in described display device, arbitrary LED pixel arranges one or more red LED light emitting diodes, one or more blue led light emitting diode and one or more green LED light emitting diode; For example, each LED pixel arranges a red LED light emitting diode, a blue led light emitting diode and a green LED light emitting diode, or each LEDLED pixel arranges two red LED light emitting diodes, a blue led light emitting diode and a green LED light emitting diode.
And the color development area of each LED pixel is identical.Described color development area refers in each LED pixel, redness, green and blue led light emitting diode are when luminous, at CIE (French Commission Internationale de L ' Eclairage, English International Commission onIllumination) 1931 chromaticity diagrams (1,931 2 ° of Chromaticity Diagram of CIE, also claim chromatic diagram) in the region that forms of chromaticity coordinates, or, the region forming at the chromaticity coordinates of CIE1976 even color figure, the i.e. color development area of each LED pixel.The color development area of each LED pixel is identical, and described display device shows homogeneous, and display effect is very good.
And in described display device, each LED light emitting diode adopts black silicon resin-encapsulated, described black silicon resin is zero luminance or the silicones close to zero
Usually, LED light emitting diode, except adopting conventional epoxy encapsulation, can also adopt black silicon resin-encapsulated.
Silicones is to have highly cross-linked cancellated polysiloxane, has the dual nature of organic resin and inorganic material concurrently, has unique physical and chemical performance.Mainly comprise: methyl phenyl silicone resin, methyl silicon resin, low phenyl methyl silicones, organic siliconresin emulsion, self-drying type organic siliconresin, high temperature modification organic siliconresin, epoxy modified silicone resin, organosilicon polyester modified resin, self-drying type environmental protection organic siliconresin, environment-protecting silicone resin, non-viscous paint organic siliconresin, high light organic siliconresin, benzyl transparent silicon resin, methyl transparent organic silicon resin, the bonding silicones of mica, poly-methyl silicon resin, amino silicone, fluorine silicon resin, silicon resin solution, organosilicon-epoxide resin, organic silicon polyester resin, solvent-resisting organic siliconresin, organic silicon resin adhesive, fluorine silicon resin sealant, high-temperature resisting methyl silicones, self-drying type organic silicon insulating varnish, methyl MQ silicones, vinyl MQ silicones and organosilicon acrylic resin coating.
Because silicones has extraordinary light transmission, thermotolerance, corrosion-resistant and insulativity etc., therefore silicones can be for the encapsulating material of LED light emitting diode.And the silicones of black, especially adopt zero luminance or the black silicon resin close to zero, not only there is good light transmission, and the light that silicones sends LED light emitting diode exerts an influence hardly, therefore, adopt the silicone encapsulation of black, the light that each LED light emitting diode sends is the purest, transmissivity is high, thereby makes the display effect of this example display device reach best.
Embodiment 5
On the basis of above-mentioned each example, described display device arranges at least one identify unit, for identifying each performance parameter of described display device.
For example, can only be set to one, for entirety, identify the performance parameter of described display device; Or, multiple identify units are set and identify respectively performance parameters different in described display device.
For example, the present embodiment can only arrange an identify unit, each performance parameter of described display device can comprise, the package assembly of described display device and color development area, for example, described package assembly is, be assembled into quantity and the size of each LED module of described display device, or, the spacing of adjacent each LED pixel, or, the shape of described display device and size etc.
Each performance parameter can also be in described display device, and the brightness of each LED light emitting diode and wavelength coverage in addition, can also identify shape, size of color, encapsulation, size and the LED module of each LED light emitting diode etc.
Or, in described display device, two or more identify units are set in the present embodiment, for identifying the different performance parameter of described display device, for example, identify unit A and identify unit B are set, identify unit A is for identifying the package assembly of described display device, and identify unit B is for identifying the color development area of described display device.
Each identify unit can adopt the mode that embeds or paste, can be arranged on the edge part of described display device, for example, be arranged on each side of described display device, or be arranged on arbitrary side of described display device, in addition, can also be arranged on the edge of side of described display device, identify unit is arranged on side, can make identify unit not take the installation site of other electronic devices and components in described display device, and, do not affect yet described display device display surface specious.
And being embedded, identify unit is arranged in described display device, can make identify unit depositing, use, be not easy to come off in the situation such as transportation, make the described display device through long storage time, use or transportation, still can clearly recognize each performance parameter of described display device.
And for example, identify unit can be a paper labels or plastic label; Use paper labels can make to wait in use very convenient, for example, can directly paper labels be sticked on the side or side of described display device, and identification means is simple, and convenient.And use plastic label can make label more durable, be not easy infringement.
In addition, identify unit can also, for having the bar code designing according to each performance parameter of described display device, can show each specific performance parameter of described display device by scanning; Adopt bar code, by data are inputted to computer, adopt electronic tool management simultaneously, make management standardization more, make when finding, using the described display device of each performance parameter convenient, quick.
Embodiment 6
On the basis of above-mentioned each example, described display device also arranges one or more driver modules, and each driver module is connected with described control submodule respectively, for according to described demonstration data, drives described display device.
Described driver module can be constant-current driven module, or, for constant voltage driver module, directly be connected with the each LED light emitting diode in each LED pixel in described display device, be that described driver module has and makes the function of each LED light emitting diode in steady current or constant voltage state, by described control submodule, control described display device, make described display device display graphics, word, letter and animation etc.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (6)
1. a LED display system, is characterized in that, comprises display device and measuring and controlling device;
Described display device comprises at least one cell board, and described cell board arranges some LED pixels that dot matrix is arranged;
Described measuring and controlling device comprises detection module and control module, and described detection module arranges detection sub-module and state feedback submodule, and described control module arranges data encoding submodule, data check error correction submodule and controls submodule;
Described data encoding submodule is connected with external video source, for receiving outside vision signal, carries out data encoding, generates and shows data;
The described detection sub-module of inclusion test data generating unit is connected with described state feedback submodule, described display device, described data check error correction submodule respectively, for detection of the circuit state of the each circuit between each LED pixel and each LED pixel in described display device, by described detection data generating unit, according to described circuit state, generate and detect data, by described detection sub-module, send to respectively described data check error correction submodule and described state feedback submodule;
The described state feedback submodule that comprises state demonstration data generating unit is for receiving described detection data, by described state, show that data generating unit is according to described detection data, analyze the state of described display device, generation state shows data, and described state is shown to data send to outside display terminal; Described state shows that data are to analyze the performance parameter data that each LED pixel shows, generates each LED pixel display performance parameter state normal or that make a mistake and shows data; Or, the electrical connection state of the connection line between the two LED pixels of analyzing each LED pixel and be connected, the connection line generating between LED pixel and the two LED pixels that are connected is that state normal or that break down shows data;
Described data check error correction submodule is also connected with described data encoding submodule, described control submodule respectively, be used for receiving described demonstration data, according to described detection data, proofread and correct described demonstration data, and, the demonstration data after proofreading and correct are sent to described control submodule;
Described control submodule is connected with described display device, for according to the demonstration data after proofreading and correct, controls described display device;
It comprises described display terminal, for showing data according to described state, shows the state of described display device; Described display terminal also arranges a graphical function sub-modules, for the graphical state that shows described display device; It also comprises a box body; Described detection module, described control module, described display terminal are all arranged in described box body, the display interface of described display terminal is arranged on the outside of described box body, or described box body arranges at least one inspection surface, for observing the display interface of described display terminal.
2. LED 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 detect electric current, the voltage of the each circuit between each LED pixel and/or each LED pixel;
Described detection data generating unit is for generating described detection data according to described electric current and/or voltage.
3. LED display system according to claim 1, is characterized in that, arbitrary LED pixel arranges at least one red LED light emitting diode, at least one blue led light emitting diode and at least one green LED light emitting diode; And the color development area of each LED pixel is identical.
4. LED display system according to claim 1, is characterized in that, described display device arranges at least one identify unit, for identifying each performance parameter of described display device.
5. LED display system according to claim 4, is characterized in that, described identify unit is paper labels or plastic label; Or be to there is the bar code designing according to each performance parameter.
6. LED display system according to claim 1, is characterized in that, described display device also arranges at least one driver module, is connected with described control submodule, for according to described demonstration data, drives described display device.
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| CN102157124B (en) * | 2011-05-13 | 2016-04-06 | 刘敬梅 | The display screen control device of smart allocation and the display screen control system of smart allocation |
| CN102290029B (en) * | 2011-05-19 | 2015-11-04 | 深圳市中庆微科技开发有限公司 | A kind of driving chip of pointwise adjustment |
| CN103531152B (en) * | 2013-11-04 | 2016-05-18 | 广东威创视讯科技股份有限公司 | A kind of display control method and device |
| CN103559861B (en) * | 2013-11-04 | 2016-06-29 | 苏州君嬴电子科技有限公司 | LED display error value obtains system and method |
| CN103700339A (en) * | 2013-12-10 | 2014-04-02 | 广西科技大学 | Dynamic overhung LED (Light-emitting Diode) display detection system |
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