How to calculate the number of receiving cards and sending cards for LED full-color display screen?
In fact, this is related to the size and model of the LED screen. So let’s take a look at what’s going on.
The number of receiving cards for full-color LED display screen, that is, to calculate the maximum load capacity of each receiving card.
The specific load capacity of each receiving card is different, and the length and width of the full-color LED display screen with different receiving cards are different.
(Length and width refer to pixels), this is based on the different designs of receiving cards.
For example
the control system of Linsn, the control range of each receiving card: 256*128 points, 256*64 points (RV901 card)
The scanning mode of the full-color LED display screen is calculated according to 256*128 points, and the static mode of the outdoor full-color LED display screen can be calculated according to 256*64 points
The pixels of the receiving card must be larger than the pixels of the screen body, so that it can be carried.
一. Calculation method of indoor full-color LED display sending card and receiving card:
For example: Now the customer has customized a P10 indoor full-color display screen at LEGIDATECH, requiring a length of 20 meters and a height of 10 meters.
1. Calculate how many modules are used.
The unit board size of the P10 display screen is: 32cm*16cm.
Number of modules used for length: 2000cm/32cm=62.5 is approximately equal to 63 unit boards
Number of modules used for width: 1000cm/16cm=62.5 is approximately equal to 63 unit boards
2. Calculate the resolution of length and width:
(The pixel of the P10 indoor unit board is: 32*16)
The actual resolution of the display screen is: length: 32×63=2016 width: 16×63=1008
3. Calculate the number of receiving cards.
(Indoor screen receive card 256*128)
Length: 2016÷256=7.875, approximately equal to 8
Width: 1008÷128=7.875, approximately equal to 8
8×8+1=65 receiving cards (one more receiving card)
4. Calculate the number of sending cards
(Linsn’s sending card is 1280*1024)
2016÷1280=1.575, approximately equal to 2
1008÷1024=0.98 approximately equal to 1
1×2=2 sending cards.
二. Calculation method of receiving and sending cards for outdoor full-color LED display:
For outdoor full-color LED display, we can calculate according to the number of cabinets, one receiving card for one or two cabinets, one card for one cabinet, or one card for two cabinets.
Government projects are one card for one cabinet, and others are two cabinets for one card.
For example
A customer customized a P10 outdoor full-color display screen at LEGIDATECH, requiring a length of 20 meters and a height of 12 meters.
A P10 cabinet with a size of 96cm*96cm was selected, and it can be concluded that:
Number of cabinets required for length: 20÷0.96=20.8
Number of cabinets required for width: 12÷0.96=12.5
1. Calculate the number of receive cards.
Number of cabinets: 21×13+1=274
Government projects: 273 receiving cards
General projects: 273÷2+1=138 receiving cards
Note: All of the above require an extra receiving card
2. Calculate the resolution:
According to the above calculation method, take the integer, 21 cabinets for length and 13 cabinets for width.
The actual resolution of the display is:
Length: 21×960=2016 Width: 13×960=1248
3. Calculate the number of sending cards
(Linsn’s sending card is 1280*1024)
2016÷1280=1.58 approximately equal to 2
1248÷1024=1.22 approximately equal to 2,
2×2=4 sending cards
Summary
In general, the receiving card is calculated based on the display resolution indoors.
Outdoors are calculated based on the number of boxes (one box and one card or two boxes and one card).
As for the sending card, both indoors and outdoors are calculated based on the screen resolution.
