LED display width and height of the general calculation
Outdoor LED display calculation method: (PH16 outdoor full color, the size of the box: 1024mm * 768mm) 64*48
If you specify the width and height of the LED display, you can calculate it in the same way as described above: If the customer requests an outdoor full color screen of 30 square meters. There is no requirement for width and height, which can be calculated as follows: Usually, the ratio is 4:3 and 16:9: If the width and height are designed in the ratio of 4:3:
The wide calculation method: The result of 30/12 is rooted, then multiplied by 4 and divided by 1024mm. Then multiplying the width of the box by an integer is the width required by the screen. That is: = 1.581 * 4 = 6.324/1.024 = 6.17 rounded 6, that is: the length of the display: 6 * 1.024 = 6.144m.
The same reasoning: The LED display height is calculated as: =1.581*3=4.743/0.768=6.17, whichever number is 6.
Namely: The height of the display screen is: 6*0.768=4.608m
The area of ​​the display should be: 6.144*4.608=28.32m.
Commonly used LED control system technical indicators
1, Lingxing rain control system
(1) Control system parameters
Seventh Generation System (Type 702 Card Integrated Sound Transmission)
Single card maximum support: TS701 card 1280 × 1024,702 card 2048 × 640, dual card cascade maximum support 2048 × 1152. Single network cable support: 701 cards 1024×640, 1280×512, 702 cards 1600×400, 2048×320.
Receiving card card (depending on the unit board hardware circuit): Full color 4096 (4K) grayscale 180Hz refresh rate, maximum with 512 × 128, is the sixth generation of the product 256 × 128 times, full color static 16384 levels (16k) gray 300hz, with 160x64. (for reference only)
Two-color DS701 card 1280×1024 (send card)
The eighth generation system (completely compatible with the seventh generation)
Single card maximum support: TS801 card 1280 × 1024; 802 card 2048 × 640, dual card cascade maximum support 2048 × 1152. Single network cable support: 801 card 1024×640, 1280×512; 802 card 1600×400, 2048×320. (supports driver chip with PWM)
(2) Refresh rate arbitrarily set, phase lock, synchronization function
The refresh rate can be arbitrarily set from 10Hz to 3000Hz. The refresh rate lock function enables the refresh of the display screen to be locked at an integral multiple of the refresh rate of the computer monitor, preventing image tearing and ensuring perfect image reproduction. The lock phase synchronization range is 47Hz-76Hz.
(3) Transmission distance
Super five cable: the maximum transmission distance of 170M (actual measurement), reliable transmission distance of 140M;
Plus relay: each additional one can add 100M transmission distance;
Fiber: Multi-mode transmission (500M) and single-mode transmission (10KM-20KM);
When the screen clock is 15.62M:
The number of rows taken by a group of data
Matrix (length X height) grayscale refresh rate effect
2 lines high 64 X 48 65536, grayscale 840
256X48 65536, grayscale good 360 good
512X48 16384, grayscale good 180 General
1024X48 16384, grayscale 180 better
1280X48 16384, grayscale better 120 worst
4 lines high 32X96 65536, grayscale 840
64X96 16384, grayscale is good 780
256X96 16384, grayscale better 360 General
512X96 8192, medium gray 180 less
1024X96 4096, 180 gray in medium gray
1280 X96 4096, medium gray 120 worst
8 lines 32X192 65536, grayscale 420 best
64 X192 32768, grayscale is good 420
128X192 16384, better grayscale 360 ​​General
256 X192 8192, medium gray 300 slightly worse
512 X192 8192, grayscale better 180 difference
1024 X192 4096, gray average 120 worst
1280 X192 4096, Medium Grayscale 60 Range
16 lines 16X384 16384, grayscale 840 best
32X384 16384, grayscale good 420 good
64X384 16384, better grayscale 360 ​​General
256X384 8192, Medium gray is slightly less than 120
512X384 4096, Grayscale General 120 Worst
E.g:
P16 full-color input for the two groups of data, a single module is 16 * 8 points, a set of data with 4 lines high, when the screen clock is 15.62M, required to reach 4096 gray levels, refresh rate above 240Hz, single Receiving card with 256 (wide) X96 (high)
2. Depuda Control System DBT-Q2007
Send card: indoor and outdoor full color screen, the largest controllable pixel is 1920X1280
Receiving card: Real pixels
Provide 24 sets of RGB signals, according to the number of points of the module band per RGB band
Determine the height of 1 receiving cassette
Such as 8 sweeps, 1 set of RGB with 8 points high, that a receive card, can bring to 192 points high
Length, generally according to customer needs, such as refresh rate, on-screen clock, gray level, etc. to configure the number of receiving cards;
Virtual, can only provide 16 groups of RGB, other algorithms are the same
Depuda DBA-9.0 asynchronous embedded full-color control system
Under the limit control area, the frame frequency is greater than 120Hz, and the full-color maximum point is 320 × 192
Model DBA-9.0
Grayscale Red Green Blue 16384 Each
Control range full color 320×192
Displacement frequency 1Mhz-30Mhz
Refresh frequency 60Hz-1000 Hz
Serial-in and parallel-out shift register chip 74HC595 MBI5026
TB62726 etc.
Scanning Method 1/16 1/8 1/4 1/2 Static
Output number 2 50 cores
Communication line standard network cable
Power supply +5V/1.5A
3, Zhongqing control system V5, V6 (depending on customer requirements)
Use dedicated grayscale control chip ZQL9705X series and special 16bit constant current chip ZQL9722, ZQL9729 and so on.
4, point by point correction control system (you can make a single point of brightness correction screen, so that the display as a whole to achieve the same brightness)
Control system MW1321 (can not be separated from the PC) Real pixels: 512*1024 points
Main Controller MW1313DC –XGA Real Pixels:1024*768
(Main controller needs to be used with receiving box)
MW1313DC-V-XGA Virtual Pixel:1024*768
Receive Box MW1314C-V Virtual, Real Pixel Universal
Scanning Board MW1322-V Static, Virtual Pixels Support Camera Correction
MW1322-1/8 Real Pixel, 1/8 Scan Support Camera Correction
5, asynchronous control system
(1) Reeducer I, II, and IV cards (does not support sub-area display) Communication methods RS232/RS485 (basic) GPRS and TCP/IP (extra converter required); Supercomm supports network communication and sub-area display (fig. Text and grayscale
Reed Institute I card:
Control range: 1024 columns × 128 rows (monochrome) or 1024 columns × 64 rows (bicolor)
Scanning field frequency: 110HZ
Total storage: 4M bits
With temperature input, humidity input
Supports 1/16 scan mode
Li Yan II type card:
Control range: 1024 columns × 256 rows (monochrome) or 1024 columns × 128 rows (bicolor)
Scanning field frequency: 110Hz
Total storage: 8M bits
With temperature input, humidity input
8 levels of brightness manual adjustment, automatic adjustment (external sensor required)
Supports 1/16 scan, 1/8 scan, 1/4 scan, 1/2 scan, and static operation modes
Provide a remote control to select the special version of the playback screen
Li Yan IV Card:
(outline with type II card)
Control range: 2048 columns × 128 rows (monochrome) or 2048 columns × 64 rows (bicolor)
Other indicators are the same as type II cards.
Reed Institutes Supercomm and Supercomm-A:
Supercomm:
Two-color mode 960*512 red and green 256 grayscale control
Three-color mode 640*320 Green 64, red and blue 32
Supercomm-A:
Two-color mode 960*256 red and green 256 grayscale control
Three-color mode 640*160 Green 64, red and blue 32
Supports static, 1/2, 1/4, 1/8, 1/16 scanning
(2) Shanghai Broadband
EQ2002 Single/dual color display with static scanning, 1/2, 1/4, 1/8, 1/16 scanning mode (all outdoor only EQ2001-1 appearance); can be divided into up to 7 areas at the same time, any size , location, regardless of primary and secondary. Communication methods are RS-232 and RS-485 (GPRS and TCP/IP are not supported)
Maximum control point 131072 Type I 262144 Type II 524288 Type III
Horizontal maximum point 1024 4096 4096
Longitudinal maximum point 256 512 512
In addition: There are many control systems on the market today, such as Shanghai Lingxin, Shenzhen Lumens, and Shenzhen Caituo.
Six, power estimation method
1. Static real pixels (equal spacing and unequal spacing): 16*8 real pixel single module maximum power consumption 16*8*3*0.02=7.68 16——16 pixels wide; 8——8 pixels Point high; 3 - Each pixel is made up of three currents; 0.02 - Estimate the size of each current.
Note: 2R1G1B real pixels, two red LEDs connected in series, only count current.
2. Static virtual pixels (equal spacing) 2R1G1B: Maximum power consumption of a single module 16*8*4*0.02=10.24 16——16 pixels wide; 8—8 pixels high; 4—each pixel Point by 4 currents; 0.02 - Estimate the size of each current.
Note: The 2R1G1B dummy pixels are separated by two red LEDs and each lamp counts a current.
3, scan real image (1R1G1B) or (2R1G1B): P10 full-color four-scan 16*16 module as an example single module maximum power consumption (16*16*3*0.03)/4=10.24 16——16 pixels Dot width; 8 - 8 pixels high; 3 - each pixel by 3 currents; 0.02 - to estimate the size of each current; 4 - 1/4 scan.
Note: 1R1G1B real pixel four LED lamps in parallel to calculate the current; scanning board power is estimated to use 80% of each power.
Flat Bag On Roll
Flat Bags on Roll is commonly used in every industry, such as electronically products, accessories,household, cosmetic, commodity, stationery, toy, fruits,vegetable and food products etc. Specially in packing of fresh fruits, fresh vegetables, meat, seafood, cakes,chocolates, candy, cookies,biscuits and so on.
The bags could be in big roll for industry and supermarket or in small or for household.
