A kind of device of on-site adjustment of LED display screen and system
Technical field
The utility model belongs to image and shows the adjustment technology field, particularly a kind of device and system that LED display is carried out the brightness point by point adjustment.
Background technology
With reference to accompanying drawing Fig. 1 and Fig. 2, the control system of existing LED display comprises: main frame 101 is used for the control of LED display 102; LED display 102 is used to receive the video data that described main frame 101 sends, and shows.Described LED display 102 comprises control module 103 and display unit 104.Described control module 103 comprises sending module and receiver module.Wherein, receiver module also can be arranged in the display unit 104 of LED display 102.Described sending module is used to receive vision signal and the control signal that described main frame sends, and handles described vision signal according to described control signal, obtains video data, sends to receiver module; Described receiver module is used to receive described video data, according to the configuration file of described LED display 102, handles described video data, generates video data, sends to the display unit 104 of described LED display 102.
The user imports it by the input media of outside and wants content displayed, and send to described main frame 101, described main frame 101 is imported the user to handle and is formed the DVI vision signal, send in the described control module 103 sending module, described sending module is handled the back to the DVI vision signal and is generated 100,000,000 transmission signals, send to receiver module described in the described control module 103,100,000,000 transmission signals that described receiver module will receive, configuration file according to LED display 102 is handled data, generate video data, send to the display unit 104 of LED display 102, described display unit 104 shows accordingly according to the described video data that receives.
LED display is by hundreds of thousands and even semiconductor light-emitting-diode up to a million, that is: LED lamp point combines.All factors such as block according to inconsistent, the dust of lamp point of the optical characteristics difference of lamp point, component ageing, driving error, the angle of lamp point own, the shade of guard lamp point and all can cause the inhomogeneous of screen lamp point brightness.The main path that solves this non-uniform phenomenon at present is to improve the homogeneity of display screen by the mode of proofreading and correct.And the correcting mode of existing screen intensity is manually to utilize the luminance meter that each LED lamp point is measured, obtain the brightness value of each LED lamp point, by calculating, obtain adjusted value then, by control circuits such as electric currents LED lamp point is adjusted again, reached the homogeneous value of appointment.Like this need to each the point carry out value one by one, operate loaded down with trivial details, system complex, overlong time, manually-operated is too much, precision is low, inefficiency.
China's application number is: 200710028417.9 invention, its name is called: a kind of wireless remote LED display screen control website system, this application discloses a kind of wireless remote LED display screen control website system, wherein adopt the connection of network to control a plurality of LED display curtains, adopt the shortcoming of this mode maximum just to realize the Long-distance Control of LED display, and do not mention for the brightness point by point adjustment technology of LED display.
As shown in Figure 1, the control system of existing LED display comprises: main frame 101 is used for the control of LED display 102; LED display 102 is used to receive the video data that described main frame sends, and shows.Described LED display 102 comprises control module and display unit.
In sum, adjust the field, press for a kind of not only practical but also economic method and solve the inhomogeneity problem of screen intensity in LED display brightness.
The utility model content
The utility model provides a kind of device and system of on-site adjustment of LED display screen especially in order to solve deficiency of the prior art, utilizes this device and system: the one, realize that data are accurate to the disposable collection of LED display lamp point brightness; The 2nd, adopt this system operation simple, full-automatic operation, and adjusted LED lamp point effect is obvious, presents immediately.
The utility model provides a kind of device of on-site adjustment of LED display screen, comprises collecting device, first opertaing device, control device;
Described collecting device is used to obtain and adjusts the first required video data of external LED display screen lamp point, sends to described first opertaing device;
Described first opertaing device is used for according to described first video data, handles to generate and adjusts data, sends to described control device;
Described control device is used for described adjustment data processing is generated final video data, sends the external LED display screen, is shown according to described final video data by it;
Between described collecting device, described first control device equipment, the described control device, wireless transmission unit is set respectively, to realize data transmission.
Described device also comprises second opertaing device, is used for the mode by Long-distance Control, controls the operation of described first opertaing device.
Described device, wherein, described second opertaing device is arranged between described first opertaing device and the described collecting device, and be connected with described collecting device, be used to receive and handle the video data that described collecting device sends, generate and adjust data, send to described first opertaing device; Perhaps the video data that receives is directly sent to described first opertaing device.
Described device, wherein, described collecting device is camera or luminance meter.
The utility model also provides a kind of system of on-site adjustment of LED display screen, comprises collecting device, first opertaing device, control device, LED display;
Described collecting device is used to obtain and adjusts the first required video data of described LED display lamp point, sends to described first opertaing device;
Described first opertaing device is used for according to described first video data, handles to generate and adjusts data, sends to described control device;
Described control device is used for described adjustment data processing is generated final video data, sends described LED display;
Described LED display is used for showing according to described final video data;
Between described collecting device, described first control device equipment, described control device, the described LED display, wireless transmission unit is set respectively, to realize data transmission.
Described system, wherein, described control device can be arranged on described LED display inside.
Described system also comprises second opertaing device, is used for the mode by Long-distance Control, controls the operation of described first opertaing device.
Described system, wherein, described second opertaing device is arranged between described first opertaing device and the described collecting device, and be connected with described collecting device, be used to receive and handle the video data that described collecting device sends, generate and adjust data, send to described first opertaing device; Perhaps the video data that receives is directly sent to described first opertaing device.
Described system, wherein, described collecting device is camera or luminance meter.
Adopt technical scheme described in the utility model, can obtain following beneficial effect:
1, controls LED display by opertaing device, and light the lamp point of counterpart on the LED display according to the needs of collecting device automatically.
2, realize disposable lamp point brightness collection automatically, data are accurate; LED display is taken pictures or measure by opertaing device control collecting device, realize value is carried out in the brightness of each the LED lamp point on the picture, well solved the visual angle and caused the uneven problem of observation.
3, native system adopts unit and two-shipper dual mode to realize the control that the LED display pointwise is adjusted, and is simple to operate, automation operating system; Need not to change the original structure of system, only need to connect collecting device or connection opertaing device and collecting device and get final product, can effectively control cost.Need not complicated manually-operated, take pictures and get brightness value, handle picture, generate and adjust data, the homogenization adjustment, the brightness adjustment, these all are to be finished automatically by system.Obtain brightness value from taking pictures, finish to adjusting, whole adjustment process is finished automatically, short, high efficiency of time.
4, adjusted homogenization effect is obvious, presents immediately; Effect after adjustment finishes is obvious, and no matter detecting from naked eyes and data can both conformance with standard, and adjusts and present adjusted effect immediately after finishing.
5, adopt two-computer control system described in the utility model, can realize the teletransmission data, save cost, save manpower.
Description of drawings
Fig. 1 is existing LED display control system structural representation;
Fig. 2 is existing LED display inner structure synoptic diagram;
Fig. 3 is one of LED display control system structural representation described in the utility model;
Fig. 4 is two of a LED display control system structural representation described in the utility model.
Embodiment
Below by the drawings and the specific embodiments the utility model is described in further details.
Embodiment 1
With reference to accompanying drawing Fig. 3, a kind of device of on-site adjustment of LED display screen comprises first opertaing device 201, collecting device 202, control device 203;
In the present embodiment, LED display is the LED display 102 of 1024*768 size, screen can be divided into the display unit of 256*192, and screen is divided into 16 display units so, 104a, 104b ..., 104p.
Described collecting device 202 is used to obtain the data of the required indicating characteristic information of the lamp point of adjusting LED display 102, sends to described first opertaing device 201; Described indicating characteristic information data comprises brightness data and image data.For example, collecting device 202 is luminance meters, and the luminance meter is gathered the brightness data of lamp point; Collecting device 202 is cameras, and camera is gathered the image data of lamp point.
Lamp point by the 104a part in first opertaing device, the 201 control LED display 102, it is shown certain brightness, that is to say, certain brightness that the lamp point of lighting is shown, be interpreted as should once not gather herein and obtain the required maximum magnitude of lighting lamp point of data above collecting device 202, and after 201 controls of described opertaing device are adjusted the camera site and parameters such as angle and shutter of collecting device 202 as camera, take, wherein, the sweep frequency of scan screen is depended in the setting of camera shutter; Thereby obtain the view data of 104a part lamp point when lighting on the LED display 102, and handle 104b in this way successively by first opertaing device 201, up to the zone of handling 104p, and control the view data that collecting device 202 gets access to all lamp points on the LED display 102, send to first opertaing device 201; The brightness data of the LED display 102 photographs zone 104a-104p that the luminance meter is obtained, one of them of the brightness data that sends to first opertaing device, 201, the first video datas and can be the view data obtained by collecting device 202 and obtain by the luminance meter or its combination.
First opertaing device 201, in the image data that camera collects, extract any two lamp dot center distances, the brightness data that the luminance meter is collected, and the feature of each lamp, above data are calculated first adjust data in described first opertaing device 201, adjusting data storage with first is in the file of BIN at form, certainly, also can be stored in the file of extended formatting, adjust file as form, for example dat form or txt form etc., the utility model is not done any restriction to this, only need to realize that data access function gets final product.Adjust data with first and send to control device 203, simultaneously brightness data is also sent in the control device 203, in this embodiment, control device promptly can be independent device, also can be integrated in the LED display 102.
The DVI vision signal is handled the back generate 100,000,000 transmission signals, send to control device 203.Control device 203 is used for the configuration file according to LED display 102, adjusts data with described first and carries out data-switching, and generate final video data according to 100,000,000 transmission signals and the first adjustment data processing, sends to described LED display 102; LED display shows according to final video data.
Collecting device 202 in the present embodiment, and first control device equipment 201 between control device 203, the LED display 102, is provided with wireless transmission unit respectively, to realize data transmission.
Embodiment 2
With reference to accompanying drawing 4, on the basis of embodiment 1, second opertaing device 301 will transmit, receive and handle the information data of the indicating characteristic information of described collecting device 202, brightness data as image of camera data and luminance meter, adjustment data after handling are sent to described first opertaing device 201 by the Internet network
Need to prove, when described first opertaing device 201 receives the data that described second opertaing device 301 directly transmits, then handle the transmission data and generate the described first adjustment data, send to the sending module in the control device; First opertaing device 201 receives described first and adjusts data, then no longer handles, and directly sends in the sending module of described control device.
Described second opertaing device 301 can be by adopting remote mode, and for example internet, wireless transmission etc. are adjusted data or the data that receive send to described first opertaing device 201 with described first.
All the other principles of present embodiment are identical with the 2nd embodiment, do not repeat them here.
Embodiment 3
Fig. 2 and Fig. 3 with reference to the accompanying drawings, the utility model also provides a kind of method of on-site adjustment of LED display screen, carries out according to the following steps:
A, first opertaing device control LED display are lighted the part lamp point on the LED display automatically;
B, described first opertaing device send instruction to collecting device, obtain the information data that LED display lamp point is lighted the indicating characteristic information of part by described collecting device, and send to described first opertaing device;
C, repeat above two steps,, and obtain all required information datas, send to described first opertaing device by described collecting device until all lamp points of lighting described LED display;
D, described first opertaing device are used to handle described all information datas that described collecting device obtains, and obtain first and adjust data, and obtain the second adjustment data according to the described first adjustment data processing, send to described LED display.
In the steps A of described method, by the control of described first opertaing device of second opertaing device, 301 controls 201 realizations to LED display 102 lamp points;
Described second opertaing device 301 adopts the mode of Long-distance Control to control described first opertaing device 201.
Among the step B of described method, receive the indicating characteristic information data that collecting device 202 gets access to, send to described first opertaing device 201 by second opertaing device 301.
In the described method, handle all information datas that collecting device 202 obtains, obtain described first and adjust data, send to described first opertaing device 201 by described second opertaing device 301.
All the other principles of present embodiment are identical with the 2nd embodiment, do not repeat them here.
By above embodiment the utility model has been carried out further announcement, but scope of the present utility model is not limited thereto, do not departing under the condition of the utility model design, more than each element can replace with the similar or equivalent element that affiliated technical field personnel understand.