CN101673493A - LED display system - Google Patents
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- CN101673493A CN101673493A CN200910091004A CN200910091004A CN101673493A CN 101673493 A CN101673493 A CN 101673493A CN 200910091004 A CN200910091004 A CN 200910091004A CN 200910091004 A CN200910091004 A CN 200910091004A CN 101673493 A CN101673493 A CN 101673493A
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- 238000004020 luminiscence type Methods 0.000 claims description 50
- 238000002955 isolation Methods 0.000 claims description 23
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- 230000000694 effects Effects 0.000 abstract description 11
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 12
- 230000000007 visual effect Effects 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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Abstract
The invention discloses an LED display system which comprises an LED module, a master control device and a slave control device, wherein the LED module comprises at least two mounting bars, a plurality of LED luminous units, a control module of the LED luminous units, a power line, at least one master signal wire and at least one slave signal wire; the master control device is connected with the master signal wire and used for generating a master control signal; the slave control device is connected with the slave signal wire and used for generating a slave control signal; the control module is provided with a plurality of function modules which are used for detecting whether the master control signal is right, judging whether the master signal wire has fault, insulating the master controlsignal, replacing the master control signal by the slave control signal as well as driving and controlling the LED luminous units; and distance among the LED luminous units is set to be at least 5 cm. The LED display system has high transparency, good heat dissipation effect, strong wind resistance, convenient and flexible assembly and disassembly, better selectivity and high stability.
Description
Technical field
The present invention relates to a kind of LED lighting device, particularly, relate to a kind of LED display system.
Background technology
LED is subjected to paying attention to widely with luminescence efficiency height, long service life, characteristics safe and reliable and environmental protection and energy saving.A kind of important means that LED display is propagated as information, become the sign of urban information modernization construction, along with socioeconomic continuous progress, and the LED display technique is constantly perfect, people will more and more go deep into the understanding of LED display, and its application will be more and more wider.
In the prior art, LED display generally is on lighttight slab construction, by light emitting diode is that LED forms a pixel, each pixel is formed the cell board with pattern, Word message with certain interval arranged, by control device control, thereby demonstrate pictures such as coloury video, picture, literal.Because the light emitting pixel of display screen all is arranged on the lighttight planar structure, display screen is restricted maybe in the application of some occasion can not have given play to better effect.Such as outside the glass of building curtain wall or the large-area conventional LED display of interior installation can have a strong impact on the visual range of personnel in interior of building daylighting and the building, or the influence visual range of inwardly watching by the buildings outside, and, components and parts are many, line is many, power supply is many, circuit is complicated because large LED screen body has, the characteristics that components and parts are numerous are difficult to guarantee in use not go wrong poor selectivity, and stability is also lower.
Perhaps, also there is LED display to be set to empty LED display, the transparency and the thermal diffusivity of light tight slab construction have been improved greatly, but the spacing of each pixel of LED display is still by traditional setting, therefore, make the transparency of LED display still not high enough, still influence the part visual range of personnel in the buildings, and, be difficult to bear the huge temperature difference and strong wind.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of transparency height, good heat dissipation effect, wind resistance is strong, easy installation and removal is flexible, and, the LED display system that selectivity is strong and stability is high.
Technical scheme of the present invention is as follows: a kind of LED display system wherein, comprises at least one led module, a main control unit and at least one from control device; Described led module comprises at least two mounting bars, plurality of LED light-emitting and control module thereof, power lead, at least one main signal line and at least one from signal wire; Described main control unit is connected with described main signal line, is used to produce main control signal, i.e. the main control signal of each LED, in other words, main LED control signal; Describedly be connected from signal wire with described, be used for producing from control signal from control device, promptly each LED from control signal, in other words, from the LED control signal; Described control module is provided with plurality of function modules, comprises failure detection sub, fault isolation submodule and control signal replacing submodule; Described failure detection sub is connected with each signal wire, described fault isolation submodule respectively, and whether be used to detect main control signal correct, notifies described fault isolation submodule; Described fault isolation submodule is also changed submodule with described control signal and is connected, and is used for when described main control signal is incorrect, judges that described main signal line breaks down, and isolates described main control signal, notifies described control signal to change submodule; Described control signal is changed submodule, be used for described main control signal is replaced by described from control signal, and according to described from control signal, each LED luminescence unit of drive controlling; Described main control signal is with described identical or different from control signal; Spacing between each LED luminescence unit is set at least 5 centimetres.
Described LED display system, wherein, the end of arbitrary mounting bar is provided with connecting portion, comprises power lead connecting portion, main signal line connecting portion at least and from the signal wire connecting portion.
Described LED display system, wherein, each connecting portion is set to connect male seat or connects female seat.
Described LED display system, wherein, described failure detection sub also is connected with a fault data output line road, is used to export fault data.
Described LED display system, wherein, described main control unit or described from control device also is provided with a state display module, is used to receive fault data, according to described fault data, calculates and the demonstration abort situation.
Described LED display system, wherein, each mounting bar is parallel to each other or is vertical mutually; In each mounting bar that is parallel to each other, the spacing between adjacent two mounting bars equals the spacing between other adjacent two mounting bars; Wherein, described spacing is 5 centimetres to 500 centimetres, or is 10 centimetres to 300 centimetres or is 20 centimetres to 200 centimetres or is 30 centimetres to 100 centimetres or is 40 centimetres to 80 centimetres or is 50 centimetres to 70 centimetres.
Described LED display system, wherein, the spacing between each LED luminescence unit is set to arbitrary numerical value of following numerical value set, and its unit is centimetre; Described set of values is combined into 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500,600,800,900,999,1200.
Described LED display system wherein, comprises that a main signal line and three is from signal wire; Respectively from signal wire be used for transmitting respectively first from control signal, second from control signal and the 3rd from control signal; Described failure detection sub, whether respectively from control signal correct, and notify described fault isolation submodule if also being used for detection; And described fault isolation submodule also is used for isolating respectively from control signal when respectively when signal wire breaks down; Described control signal is changed submodule, and also being used to change described first is described second from control signal from control signal, and perhaps, being used to change described second is the described the 3rd from control signal from control signal; For example, in each signal wire, any two signal wires be arranged in parallel, and, with the perpendicular setting of other two signal wires.
Described LED display system wherein, also is provided with at least one identify unit, is used to identify the performance parameter of each described led module; Wherein, described identify unit is paper labels or plastic label; Perhaps be to have the bar code that designs according to each performance parameter.
Described LED display system wherein, also is provided with an adjusting gear, and described adjusting gear is connected with each LED luminescence unit, is used to adjust the brightness or the chromaticity coordinates of each LED luminescence unit, to obtain identical or close color development area.
Adopt such scheme, the present invention is by being that minimum is 5 centimetres with the distance between each LED luminescence unit, then the spacing between each mounting bar can be set to bigger more than 10 times than the saturating hollow LED display screen of tradition, has high transparent, and extraordinary thermal diffusivity and wind resistance, can bear the huge cold and hot temperature difference and strong wind, not influence the visual range of personnel in the building fully, energy consumption is also lower; And, can adopt mounting bar to install, make and can in the buildings of different shape, deployment be installed, easy installation and removal is flexible.And main control unit produces main control signal and setting produces from control signal from control device by establishing, and can select main control signal, also can select to show from control signal, shows that selectivity is strong; And, by each functional module being set in described control module, judge whether fault of signal line by each functional module, and, isolate the out of order signal circuit, make when the main signal circuit breaks down, can replace the main signal circuit from signal line, work on, stability is very high.
Description of drawings
Fig. 1 is the synoptic diagram of embodiment 1 among the present invention;
Fig. 2 is the synoptic diagram of embodiment 2 among the present invention;
Fig. 3 is the synoptic diagram of embodiment 3 among the present invention;
Fig. 4 is the synoptic diagram of embodiment 4 among 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 embodiment provides a kind of LED display system, and described LED system comprises one or more led modules, a main control unit and one or more from control device.
For example, described led module comprises that two or many mounting bars, plurality of LED light-emitting and control modules thereof, power lead, one or more main signal line and one or more are from signal wire.Wherein, each LED luminescence unit is fixed on each mounting bar, and, each LED luminescence unit can be dot matrix and arrange, thereby form a led module, one or more led modules promptly can be formed the LED display of difformity and different sizes, and each LED display can be used to show various video informations.
Described power lead can comprise one or more positive source line and one or more power-polar curve, each positive source line is connected with power supply, be used to transmit electric energy, for described led module provides voltage, and, form the loop with each power cathode line, to realize the parallel electrical connection of each LED luminescence unit.Perhaps, power lead also can comprise one or more power supply line and one or more ground wire, each power supply line provides voltage for described led module, and each ground wire is used for electric charge unnecessary on the described led module is imported the earth, with the infringement that prevents that unnecessary electric charge from causing.
Each main signal line and respectively all be used to transmit the LED control signal from signal wire, wherein, described main signal line is connected with described main control unit, the video file content that described main control unit shows as required, produce main LED control signal, and pass to each control module of each LED luminescence unit by described main signal line; And, describedly be connected from control device with described from signal wire, described from control device according to same video file content or another video file content, produce from the LED control signal, and by described each control module that passes to each LED luminescence unit from signal wire; Each control module of each LED luminescence unit is according to each main LED control signal or respectively from the LED control signal, each LED luminescence unit of drive controlling, make each LED luminescence unit according to each main LED control signal or respectively from the LED control signal, show the various videos that need demonstration.
The control module of each LED luminescence unit is provided with each functional module, changes submodule comprising failure detection sub, fault isolation submodule and LED control signal; Described failure detection sub, be connected with input end respectively with each main signal line respectively from signal wire, described main signal line and describedly all be used to transmit the LED control signal from signal, wherein, described main signal line is used to transmit main LED control signal, describedly be used for transmission from the LED control signal from signal wire, described main LED control signal is controlled and can also can be difference for identical from LED with described; Described main LED control signal and described from the LED control signal for being used to control the LED control signal of each LED light emitting diode, can be used to make each LED diode displaying figure, literal, letter and animation etc.
Described fault isolation submodule is connected with described failure detection sub, and described LED control signal is changed submodule and is connected with described fault isolation submodule.
Whether the LED control signal that described failure detection sub is used to detect described main signal line input is correct, and the result that will detect passes to described fault isolation submodule; When if described main LED control signal is correct, then described main LED control signal is through described failure detection sub, be delivered to described fault isolation submodule, after being delivered to described LED control signal replacing submodule through described fault isolation submodule again, be used further to control each LED light emitting diode, described main LED control signal can be used for each LED light emitting diode of direct drive controlling, be that described control module directly is connected with each LED light emitting diode, perhaps, described main LED control signal is each LED light emitting diode of drive controlling indirectly, be that described control module is connected with other driver module, as, be connected with constant-current driven module or constant voltage driving module, other driver modules are connected with each LED light emitting diode again, and described control module is come each LED light emitting diode of drive controlling by controlling other driver modules.
When described failure detection sub detects described main LED control signal when incorrect, described fault isolation submodule judges that then described main signal line is for breaking down, and, isolate described main LED control signal, make the main LED control signal that breaks down stop transmission; And, described LED control signal change submodule described main LED control signal is replaced by described from the LED control signal, and according to described from the LED control signal, come each LED light emitting diode of drive controlling.
The mounting bar of each LED luminescence unit is installed, can interfixes, thereby form a led module, also can directly install on the medium, form a led module by each mounting bar is fixed on by stationary installation, thereby as a LED display.As, each mounting bar can be PCB bar or bonding jumper, plastic strip etc.; And for example, medium is installed and by each mounting bar is installed and fixed, firm LED display is installed for installing and fixing framework, crossbeam, construction wall, installation plate or the like being installed thereby form one.By directly fixing each mounting bar, can guarantee that the display screen of described led module formation is disposed in the buildings of different shape, easy for installation flexible.
Minor increment between each LED luminescence unit is 5 centimetres, be to be 5 centimetres apart from minimum between the adjacent two LED luminescence units, for example, be arbitrary numerical value of following numerical value set, its unit is centimetre: 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500,600,800,900,999,1200.
Because the dot spacing between the LED luminescence unit of common LED display screen generally all is set to P5 to P25, promptly 0.5 centimetre to 2.5 centimetres, therefore, in the saturating abortive haul screen of making, the maximum spacing between the adjacent mounting bar is 2.5 centimetres, is installed in the exterior wall of building, shelter from the part visual field of people in the building easily, make the transparency of LED display can not satisfy the requirement of vision, and, because the spacing between the mounting bar is too small, radiating effect is also good inadequately, is difficult to bear the huge temperature difference and hurricane.
It is 5 centimetres that the minor increment of each LED luminescence unit of present embodiment is set to, and adopt each mounting bar to install, the energy consumption of the display screen of being made up of led module can be reduced in minimum space with 5 centimetres=25 square centimeters of 5 cm x between each LED luminescence unit when enough satisfying people's vision needs, and, spacing between each LED luminescence unit is big more, then the spacing between the mounting bar can be provided with big more, therefore, good heat dissipation effect can be born the bigger temperature difference; And, adopt the strong sparse form of permeability to install, helping increases the steadiness that the LED luminescence unit is installed, and even can resist the high wind hurricane.
Embodiment 2
As shown in Figure 2, on the basis of above-mentioned each example, at each mounting bar plurality of LED light-emitting 201 is installed all, the end of arbitrary mounting bar 202 is provided with connecting portion 203, wherein, any one end that described connecting portion 203 can be arranged on mounting bar 202 is provided with, also can be arranged on two ends of mounting bar 202, and described connecting portion 203 is used for the connection between two mounting bars.For example, connecting portion 203 comprises power lead connecting portion, main signal line connecting portion and from the signal wire connecting portion, wherein, the power lead connecting portion can comprise positive source connecting portion and power-polar curve connecting portion, be used for respectively with adjacent mounting bar on positive source line and the corresponding electrical connection of power-polar curve, described main signal line connecting portion be used for adjacent mounting bar on main signal line connect with signal, described from the signal wire connecting portion be used for adjacent mounting bar on connect with signal from signal wire.
Wherein, each connecting portion that is provided with on arbitrary mounting bar, can be directly with adjacent mounting bar on corresponding connecting portion be fixedly connected; Perhaps, also can be fixedly connected by connecting portion suitable on this linkage unit 204 and the adjacent mounting bar again by being fixedly connected with a linkage unit 204.
For example, the end of mounting bar A is provided with connecting portion a, the end of mounting bar B is provided with connecting portion b, wherein, the connecting portion a1 that is provided with on the connecting portion a of mounting bar A and linkage unit X one end is suitable, and mounting bar A is fixedly connected by suitable connecting portion a and connecting portion a1 and linkage unit X; The connecting portion b1 that is provided with on the connecting portion b of mounting bar B and the linkage unit X other end is suitable, mounting bar B is fixedly connected by suitable connecting portion b and connecting portion b1 and linkage unit X, thereby, realize fixedlying connected between mounting bar A and the mounting bar B, saidly fixedly connectedly comprise that fixing electrical connection is connected with fixed signal.
For example, each connecting portion can be set to connect male seat or connect female seat, the connection male seat that is provided with on arbitrary mounting bar or connect female seat, with adjacent mounting bar end be provided be connected female seat or connect male seat suitable; Perhaps, be provided with on the linkage unit 204 be connected female seat or connect male seat suitable, wherein, linkage unit 204 can be each power circuit and each signal line.
Embodiment 3
On the basis of above-mentioned each example, in the control module of each LED luminescence unit, described failure detection sub also is connected with a fault data output line road, is used to export fault data.For example; one fault data output line road also is set in a led module; described fault data output line road is connected with described failure detection sub; described fault data output line road is used to export fault data; promptly when described main LED control signal is correct or incorrect; described fault data circuit correspondence is exported the fault data that described main signal circuit is normal or break down; for example; described fault data output line Lu Yiduan can be connected with control system; display interface by external control system directly shows fault data; promptly like this; can be by the fault data of output; can know that each circuit does not break down, and find the position of breaking down fast, make convenience easy to maintenance.
As shown in Figure 3, on control device 301, also be provided with a state display module 302, described state display module can or be the LED display interface for the LCD display interface, and, be wholely set with described control device 301, promptly be set to an integral body; Wherein, described control device 301 can be described main control unit, perhaps also can be for described from control device.
Embodiment 4
As shown in Figure 4, on the basis of above-mentioned each example, each mounting bar that constitutes described led module can be parallel to each other, also can be vertical mutually, and for example, mounting bar 401 parallels with mounting bar 402, and mounting bar 403 parallels with mounting bar 404; Mounting bar 401 is perpendicular respectively at mounting bar 403 and mounting bar 404, and mounting bar 402 is also perpendicular respectively at mounting bar 403 and mounting bar 404.
And in each mounting bar, the spacing between adjacent two mounting bars equals the spacing between other adjacent two mounting bars.
For example, the spacing of adjacent horizontal mounting bar is set to identical, and the spacing of adjacent perpendicular mounting bar is set to identical, and described installation position is distributed in the intersection of horizontal mounting bar and perpendicular mounting bar; Perhaps, the installation position is distributed on each horizontal mounting bar.Perhaps, the installation position is distributed on each perpendicular mounting bar; According to uniform purpose, show dot matrix to form uniform LED.
And the minimum spacing of adjacent two mounting bars is set to 5 centimetres, in addition, the also size of the display screen that can form according to led module, the height of building, parameters such as the visual angle of display screen are selected the distance between adjacent two mounting bars.
Therefore, minor increment between each mounting bar is set to 5 centimetres, at least the energy consumption of the display screen of being made up of led module can be reduced in the space that has 5 centimetres=25 square centimeters of 5 cm x between the then adjacent mounting bar when enough satisfying people's vision needs, and, spacing between the mounting bar is big more, and the dot spacing that then is arranged between the LED luminescence unit on each mounting bar is also big more, therefore, good heat dissipation effect can be born the bigger temperature difference; And, adopt the form of the strong sparse installation position of permeability, helping increases the steadiness that the LED luminescence unit is installed, and even can resist the high wind hurricane.Need to prove that the distance between the adjacent mounting bar can be the distance between the mounting bar edge, also can be the distance between the mounting bar center; The mounting bar center, i.e. the mounting bar of a rectangle or similar rectangle, at the center line of this rectangle, or any point on the class symmedian of similar rectangle; Two center lines of adjacent two mounting bars, parallel or approximate parallel.
Because the spacing minimum of each installation position is 5 centimetres, traditional relatively 0.5 centimetre to 2.5 centimetres, the dot spacing of each LED luminescence unit increases, and promptly the quantity of each LED luminescence unit reduces in the unit area, saves cost, and, energy consumption reduces, and is satisfying each performance parameter that is installed in extra-large LED display screen on the high buildings and large mansions exterior wall, and people's vision needs the time in the building in, make cost reach minimum, can resist the bigger temperature difference and hurricane.
And the spacing between each mounting bar can be set to equate.For example, a range of definition is set, comprise following numerical value: 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500 or the like, unit is centimetre.For each mounting bar, the spacing of adjacent mounting bar is a numerical value unit of the above-mentioned range of definition, for example 8 centimetres; Perhaps the spacing of adjacent mounting bar is arbitrary numerical value unit of the above-mentioned range of definition.
Spacing between each mounting bar can be according to actual needs, be set to 5 centimetres, 8 centimetres, 10 centimetres, 15 centimetres, 20 centimetres, 25 centimetres, 30 centimetres, 40 centimetres, 60 centimetres, 80 centimetres, 100 centimetres, 200 centimetres, 400 centimetres, 500 centimetres or the like, then can reach same technique effect.
Usually, the spacing between the adjacent mounting bar is big more, and then transparency is high more, and energy consumption is more little, and radiating effect is good more, and the ability of bearing the huge temperature difference and hurricane is strong more, and the spacing between the general adjacent mounting bar can be set to 500 centimetres.
For example, adjacent two distances between installing can be set to 10 centimetres to 300 centimetres.Therefore, install respectively then that minimum has 10 centimetres=100 square centimeters of 10 cm x between the rule, maximum has the space of 300 centimetres=90,000 square centimeters of 300 cm x, between each mounting bar the space be provided with more and rationalize, make in the visual range that does not influence the people, the distance of described LED display reaches relatively to be optimized.
Further, space between each mounting bar is rationalized more, make in the visual range that does not influence people in the building, and do not influence under the thermal diffusivity and anti-hurricane prerequisite of described LED display, make each performance parameter of described LED display reach best, therefore, the distance between the adjacent two horizontal mounting bars can be set to 20 centimetres to 200 centimetres or be 30 centimetres to 100 centimetres or be 40 centimetres to 80 centimetres or be 50 centimetres to 70 centimetres; Perhaps, the distance between the adjacent two perpendicular mounting bars can be set to 20 centimetres to 200 centimetres or be 30 centimetres to 100 centimetres or be 40 centimetres to 80 centimetres or be 50 centimetres to 70 centimetres; Perhaps, the distances between distance between the two adjacent horizontal mounting bars and the adjacent two perpendicular mounting bars all can be set to 20 centimetres to 200 centimetres or be 30 centimetres to 100 centimetres or be 40 centimetres to 80 centimetres or be 50 centimetres to 70 centimetres.
Embodiment 5
On the basis of above-mentioned each example, one main signal line and three can also be set from signal wire, as comprise main signal line, first from signal wire, second from signal and the 3rd from signal wire, main signal line is used to transmit main LED control signal, first is used to transmit first from the LED control signal from signal wire, second is used to transmit second from the LED control signal from signal, and the 3rd is used to transmit the 3rd from the LED control signal from signal wire.
When described main signal line broke down, described failure detection sub also was used to detect described first from signal wire, and the result that will detect passes to described fault isolation submodule; If described first from the LED control signal when correct, then described control module is come each LED light emitting diode of drive controlling according to described first from the LED control signal; When described failure detection sub detects described first from the LED control signal when incorrect, described fault isolation submodule judges that then described first signal wire is for breaking down, and, isolate described first from the LED control signal, make break down first from the LED control signal stop the transmission; And described LED control signal is changed submodule and is replaced by described second from the LED control signal with described first from the LED control signal, and according to described second from the LED control signal, comes each LED light emitting diode of drive controlling.
When described first when signal wire breaks down, described failure detection sub also is used to detect described second from signal wire, and the result that will detect passes to described fault isolation submodule; If described second from the LED control signal when correct, then described control module is come each LED light emitting diode of drive controlling according to described second from the LED control signal; When described failure detection sub detects described second from the LED control signal when incorrect, described fault isolation submodule judges that then described secondary signal line is for breaking down, and, isolate described second from the LED control signal, make break down second from the LED control signal stop the transmission; And described LED control signal is changed submodule and is replaced by the described the 3rd from the LED control signal with described second from the LED control signal, and according to the described the 3rd from the LED control signal, comes each LED light emitting diode of drive controlling
Wherein, main signal line, first from signal wire, second from signal and the 3rd from signal wire, wherein any two signal wires be arranged in parallel, and, with the perpendicular setting of other two signal wires; For example, main signal line and first be arranged in parallel from signal wire, and, with second from signal and the 3rd from the perpendicular setting of signal wire; And, the transmission direction of the LED control signal that two signal wires that are arranged in parallel transmit respectively is opposite, promptly main LED control signal and first opposite from the transmission direction of LED control signal, second is opposite from the transmission direction of LED control signal and the 3rd LED control signal.
So, can make four bars circuits from four of described led module not ipsilateral be connected with described control module, make arbitrary therein side or after arbitrarily the circuit of two sides or any three sides is cut off, described control module is still unaffected, make fault effects reach minimum, guaranteed the stability that described LED display shows.
Embodiment 6
On above-mentioned each routine basis, described LED display system also is provided with one or more identify units, is used to identify the performance parameter of described led module.
Each performance parameter of described led module, can be in each LED luminescence unit, the brightness of each LED light emitting diode, wavelength, chromaticity coordinates etc. can also be color, encapsulation, the size of each LED light emitting diode, the spacing of each LED luminescence unit, and shape of each led module, size etc.
In each LED luminescence unit in the described led module, when same color LED light emitting diode adopts same minute gear selecting or adjacent minute gear selecting, the brightness of same color LED light emitting diode, encapsulation, big or small identical, and consistent wavelength, therefore each LED light emitting diode of same color in the led module can be seen a LED light emitting diode as and identify, and has accurate performance parameter numerical value, therefore, the sign content is simple, convenient.
Each identify unit can adopt the mode that embeds or paste to be provided with, can be arranged on arbitrary side of described led module, identify unit is arranged on the side, can make identify unit not take each LED light emitting diode, and the installation site of other electronic devices and components, and, do not influence display surface specious of described led module yet.
And the identify unit embedding is arranged on the described led module, can make identify unit deposit, use, be not easy to come off under the situation such as transportation, make described panel, still can clearly recognize each performance parameter of described led module through long storage time, use or transportation.
And for example, identify unit can be a paper labels or plastic label; Use paper labels to make to wait in use very convenient, for example, can directly paper labels be sticked on the side or side of described led module, identification means is simple, and makes things convenient for.And use plastic label can make label more durable, be not easy infringement.
In addition, identify unit can also be the bar code of each performance parameter of mark, like this, because identify unit has the bar code that each performance parameter according to described led module designs, can show each specific performance parameter of described led module by scanning; Adopt bar code,, adopt the electronic tool management simultaneously, management is standardized more, make when seeking, using each panel of each performance parameter convenient, quick by data are imported computer.
Embodiment 7
On the basis of above-mentioned each example, described LED display system also is provided with an adjusting gear, and described adjusting gear is connected with each LED luminescence unit, be used for adjusting the brightness of each LED luminescence unit LED light emitting diode, thereby adjust the color development area of each LED luminescence unit.
Described color development area refers in each LED luminescence unit, redness, green and blue led light emitting diode are when luminous, at CIE (French Commission Internationale de L ' Eclairage, English International Commission on Illumination) 1931 chromaticity diagrams (CIE 19312Chromaticity Diagram, also claim chromatic diagram) or CIE1976 even color figure in the zone that chromaticity coordinates constituted, i.e. the color development area of each LED luminescence unit.
When the color development area of each LED luminescence unit is identical or close, then the led module of Zu Chenging, LED display display device show homogeneous, and display effect is very good; Perhaps, when the color development area of each LED luminescence unit close, wherein, said color development area is close to refer in certain color development area numerical error scope, the color development area of each LED luminescence unit is considered as identical in the sensing range of naked eyes, therefore, the led module of composition, LED display display device show same homogeneous, and display effect is very good equally.
For the color development area that reaches each LED luminescence unit is identical or close, can adopt the LED light emitting diode of same minute gear selecting and adjacent minute gear selecting thereof to reach; Perhaps, also can be by the chromaticity coordinates computing module is set in adjusting gear, calculate the color development area of each LED luminescence unit by the chromaticity coordinates computing module, and, brightness according to each LED light emitting diode, the brightness of each LED light emitting diode is adjusted into object brightness, makes the color development area of each LED luminescence unit identical or close; Perhaps, can also be by the wavelength computing module be set in adjusting gear, calculate the color development area of each LED luminescence unit by the wavelength computing module, and, brightness according to each LED light emitting diode, the brightness of each LED light emitting diode is adjusted into object brightness, makes the color development area of each LED luminescence unit identical or close.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1, a kind of LED display system is characterized in that, comprises at least one led module, a main control unit and at least one from control device;
Described led module comprises at least two mounting bars, plurality of LED light-emitting and control module thereof, power lead, at least one main signal line and at least one from signal wire;
Described main control unit is connected with described main signal line, is used to produce main control signal; Describedly be connected from signal wire with described, be used for producing from control signal from control device;
Described control module is provided with plurality of function modules, comprises failure detection sub, fault isolation submodule and control signal replacing submodule;
Described failure detection sub is connected with each signal wire, described fault isolation submodule respectively, and whether be used to detect main control signal correct, notifies described fault isolation submodule;
Described fault isolation submodule is also changed submodule with described control signal and is connected, and is used for when described main control signal is incorrect, judges that described main signal line breaks down, and isolates described main control signal, notifies described control signal to change submodule;
Described control signal is changed submodule, be used for described main control signal is replaced by described from control signal, and according to described from control signal, each LED luminescence unit of drive controlling;
Described main control signal is with described identical or different from control signal;
Spacing between each LED luminescence unit is set at least 5 centimetres.
2, LED display system according to claim 1 is characterized in that, the end of arbitrary mounting bar is provided with connecting portion, comprises power lead connecting portion, main signal line connecting portion at least and from the signal wire connecting portion.
3, LED display system according to claim 2 is characterized in that, each connecting portion is set to connect male seat or connects female seat.
4, LED display system according to claim 1 is characterized in that, described failure detection sub also is connected with a fault data output line road, is used to export fault data.
5, LED display system according to claim 3 is characterized in that, described main control unit or described from control device also is provided with a state display module, is used to receive fault data, according to described fault data, calculates and the demonstration abort situation.
6, LED display system according to claim 1 is characterized in that, each mounting bar is parallel to each other or is vertical mutually; In each mounting bar that is parallel to each other, the spacing between adjacent two mounting bars equals the spacing between other adjacent two mounting bars;
Wherein, described spacing is 5 centimetres to 500 centimetres or is 10 centimetres to 300 centimetres or is 20 centimetres to 200 centimetres or is 30 centimetres to 100 centimetres or is 40 centimetres to 80 centimetres or is 50 centimetres to 70 centimetres.
7, LED display system according to claim 1 is characterized in that, the spacing between each LED luminescence unit is set to arbitrary numerical value of following numerical value set, and its unit is centimetre;
Described set of values is combined into 5,8,9,10,12,15,18,20,23,24,25,30,33,36,40,43,45,49,55,60,64,70,72,75,80,81,82,90,99,111,125,138,149,167,186,200,225,256,268,292,303,337,339,353,369,382,406,433,442,451,460,499,500,600,800,900,999,1200.
8, LED display system according to claim 1 is characterized in that, comprises that a main signal line and three is from signal wire;
Respectively from signal wire be used for transmitting respectively first from control signal, second from control signal and the 3rd from control signal;
Described failure detection sub, whether respectively from control signal correct, and notify described fault isolation submodule if also being used for detection;
And described fault isolation submodule also is used for isolating respectively from control signal when respectively when signal wire breaks down;
Described control signal is changed submodule, and also being used to change described first is described second from control signal from control signal, and perhaps, being used to change described second is the described the 3rd from control signal from control signal;
For example, in each signal wire, any two signal wires be arranged in parallel, and, with the perpendicular setting of other two signal wires.
9, LED display system according to claim 1 is characterized in that, at least one identify unit also is set, and is used to identify the performance parameter of each described led module; Wherein, described identify unit is paper labels or plastic label; Perhaps be to have the bar code that designs according to each performance parameter.
10, LED display system according to claim 1, it is characterized in that, an adjusting gear also is set, described adjusting gear is connected with each LED luminescence unit, be used to adjust the brightness or the chromaticity coordinates of each LED luminescence unit, to obtain identical or close color development area.
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