Indoor two-color LED display system inquiry purchase announcement
Title: Indoor two-color LED display system inquiry procurement announcement Tender No.: SZGX2009-X-018 Announcement date: March 31, 2009 Deadline: April 3, 2009 Tendering agency: Suzhou Science and Technology College: Jiangsu Province - Suzhou City Content: The company was commissioned by the Suzhou Institute of Science and Technology to purchase and purchase the indoor two-color LED display system of the unit. Suppliers are welcome to participate.
First, the procurement content and technical specifications:
1. Purchase content:
Product name Brand, specification and model number Remarks Double primary color LED display (without frame area) 1.5*0.9M 1
Control dedicated card 1
Stainless steel frame 1
Network remote control software 1
Installation, wiring, commissioning, auxiliary materials, etc. 50HZ220V 1
* The wire, auxiliary materials and labor in this quotation are determined by the responding unit. If there is a shortage in the construction, the transaction unit will be responsible, and the purchaser will not be responsible for the increase of the cost.
2. skills requirement:
Technical requirements for LED display:
Technical index technical parameters pixel spacing 16mm
Physical pixel density 3906 points / m2
Pixel composition 2 red 1 green box size 512mm × 512mm
Physical resolution 32×32
Optimum line of sight 15-350m
Frame change frequency ㄒ60 frames/second refresh rate ㄒ120 frames/second case thickness 12cm+maintenance thickness horizontal view angle 110°
White balance brightness ≥3000cd/ m2
Maximum power consumption <1200w/m2
Average power consumption 350-450 w/m2
Control mode asynchronous control drive mode constant current drive mean time between failure ≥ 1000 hours, continuous operation life of 100,000 hours for 24 hours (half of brightness attenuation)
Noise rate <0.0002
Grounding resistance ≤ 4Ω
Grayscale/Color can display 16.7M color control function. The switch of the display screen and the display of text, picture and video can be controlled by computer.
Operating system windows2000/xp
Text input a variety of Chinese and English font text display Chinese, English characters, Arabic numerals, common characters, graphics animation effects move, scroll, rotate, zoom, filial piety and so on.
Display mode 1024*768
Other functions include clock display, screen editing, and Chinese control interface. Display year, month, day and current time power supply requirements 380V three-phase five-wire LED die with high quality products, service life of more than 100,000 hours printed circuit board using imported plate base, heat sealing, leveling, via, metal hole Metallic paper galvanized, solder mask milling machine processing switching power supply has strong anti-electricity, strong high and low temperature working ability, high force ripple, high efficiency, short circuit protection, strong load capacity and high life computer Broadcast mode graphic display function: It has the functions of editing, zooming, streaming and animation. The broadcast system is equipped with multimedia software, which can flexibly input and broadcast a variety of information. There are many Chinese fonts and fonts to choose from. , there are a variety of broadcast methods, such as: single / multi-line translation, single / multi-line up / down, left / right pull, up / down, rotation, stepless zoom, and other major news editing and playback, and A variety of fonts for selecting important announcements, such as the instant release of advertising information, and other network functions are equipped with standard network interfaces, which can be connected to other standard networks. Collect and broadcast real-time data of each database to realize remote network control. Through the network system, you can enter the Internet.
The video processing and control unit video processing and control unit completes the image processing of the display data. These processes include: second-level gray-scale nonlinear correction, which can be adjusted automatically or manually, automatic stepless brightness adjustment, and the gray level control system can control the display. The screen displays 24-bit data of 10 bits per primary color, that is, 1024 gray levels of each primary color. Image noise reduction processing: ensuring clean and smooth images, image enhancement technology, image edge enhancement technology, motion compensation technology, color coordinate space transformation technology , Chromaticity adjustment function, visual processing: In the system, the brightness of each primary color of a single module can be adjusted separately, the color balance can be adjusted, and the mosaic phenomenon can be basically eliminated. The brightness consistency of all modules and display modules is good, and the monochrome display has no visual difference. . The video processing and control unit, such as white balance processing, transmits the processed display information to the communication module for long distance transmission to the display.
The communication module communication module ensures that the display content of the screen control machine is transmitted to the display screen over a long distance without any error. The communication module encodes and decodes the transmitted information, and performs long-distance transmission and reception data processing. The communication module transmits the display information to the data distribution and scanning unit.
The data distribution and scanning unit data distribution and scanning unit is a modular structure design that distributes the display data to the display by area and completes the display data scan.
LED display software basic function display data processing and processing to produce various display effects and control the display of the output of the output provides a manual interface to provide a variety of message editing, layout and editing functions to provide playback and playback of the content of the program provides a large The screen displays the system database management and maintenance functions to provide monitoring and control functions for the entire system.
LED screen structure and its characteristics The indoor LED display structure adopts high-quality steel frame structure, outsourcing high-grade stainless steel, interior insulation equipment, fireproof board, and installation of special screen internal air convection system. Consider that the structure should have an air inlet (generally the bottom end of the structure is opened into the wind window and dustproof device is provided), and the upper part of the upper side or the upper part of the back of the screen body should have an air outlet (the rainproof device should be considered). According to the site situation, the steel frame structure of the display should be externally decorated with high-grade stainless steel (matt)
3. Installation requirements:
The unevenness of the pixel installation of each cabinet company name: International Tendering Co., Ltd. Contact: Chen Zeming, Liu Xiuyan Tel: 0512-61127533, 67635087 E-mail: Fax: 0512-67635093 Zip code: Address: Jinji, Suzhou Industrial Park Block A, 4th Floor, Jiacheng Building, 128 Lake Road
First, the procurement content and technical specifications:
1. Purchase content:
Product name Brand, specification and model number Remarks Double primary color LED display (without frame area) 1.5*0.9M 1
Control dedicated card 1
Stainless steel frame 1
Network remote control software 1
Installation, wiring, commissioning, auxiliary materials, etc. 50HZ220V 1
* The wire, auxiliary materials and labor in this quotation are determined by the responding unit. If there is a shortage in the construction, the transaction unit will be responsible, and the purchaser will not be responsible for the increase of the cost.
2. skills requirement:
Technical requirements for LED display:
Technical index technical parameters pixel spacing 16mm
Physical pixel density 3906 points / m2
Pixel composition 2 red 1 green box size 512mm × 512mm
Physical resolution 32×32
Optimum line of sight 15-350m
Frame change frequency ㄒ60 frames/second refresh rate ㄒ120 frames/second case thickness 12cm+maintenance thickness horizontal view angle 110°
White balance brightness ≥3000cd/ m2
Maximum power consumption <1200w/m2
Average power consumption 350-450 w/m2
Control mode asynchronous control drive mode constant current drive mean time between failure ≥ 1000 hours, continuous operation life of 100,000 hours for 24 hours (half of brightness attenuation)
Noise rate <0.0002
Grounding resistance ≤ 4Ω
Grayscale/Color can display 16.7M color control function. The switch of the display screen and the display of text, picture and video can be controlled by computer.
Operating system windows2000/xp
Text input a variety of Chinese and English font text display Chinese, English characters, Arabic numerals, common characters, graphics animation effects move, scroll, rotate, zoom, filial piety and so on.
Display mode 1024*768
Other functions include clock display, screen editing, and Chinese control interface. Display year, month, day and current time power supply requirements 380V three-phase five-wire LED die with high quality products, service life of more than 100,000 hours printed circuit board using imported plate base, heat sealing, leveling, via, metal hole Metallic paper galvanized, solder mask milling machine processing switching power supply has strong anti-electricity, strong high and low temperature working ability, high force ripple, high efficiency, short circuit protection, strong load capacity and high life computer Broadcast mode graphic display function: It has the functions of editing, zooming, streaming and animation. The broadcast system is equipped with multimedia software, which can flexibly input and broadcast a variety of information. There are many Chinese fonts and fonts to choose from. , there are a variety of broadcast methods, such as: single / multi-line translation, single / multi-line up / down, left / right pull, up / down, rotation, stepless zoom, and other major news editing and playback, and A variety of fonts for selecting important announcements, such as the instant release of advertising information, and other network functions are equipped with standard network interfaces, which can be connected to other standard networks. Collect and broadcast real-time data of each database to realize remote network control. Through the network system, you can enter the Internet.
The video processing and control unit video processing and control unit completes the image processing of the display data. These processes include: second-level gray-scale nonlinear correction, which can be adjusted automatically or manually, automatic stepless brightness adjustment, and the gray level control system can control the display. The screen displays 24-bit data of 10 bits per primary color, that is, 1024 gray levels of each primary color. Image noise reduction processing: ensuring clean and smooth images, image enhancement technology, image edge enhancement technology, motion compensation technology, color coordinate space transformation technology , Chromaticity adjustment function, visual processing: In the system, the brightness of each primary color of a single module can be adjusted separately, the color balance can be adjusted, and the mosaic phenomenon can be basically eliminated. The brightness consistency of all modules and display modules is good, and the monochrome display has no visual difference. . The video processing and control unit, such as white balance processing, transmits the processed display information to the communication module for long distance transmission to the display.
The communication module communication module ensures that the display content of the screen control machine is transmitted to the display screen over a long distance without any error. The communication module encodes and decodes the transmitted information, and performs long-distance transmission and reception data processing. The communication module transmits the display information to the data distribution and scanning unit.
The data distribution and scanning unit data distribution and scanning unit is a modular structure design that distributes the display data to the display by area and completes the display data scan.
LED display software basic function display data processing and processing to produce various display effects and control the display of the output of the output provides a manual interface to provide a variety of message editing, layout and editing functions to provide playback and playback of the content of the program provides a large The screen displays the system database management and maintenance functions to provide monitoring and control functions for the entire system.
LED screen structure and its characteristics The indoor LED display structure adopts high-quality steel frame structure, outsourcing high-grade stainless steel, interior insulation equipment, fireproof board, and installation of special screen internal air convection system. Consider that the structure should have an air inlet (generally the bottom end of the structure is opened into the wind window and dustproof device is provided), and the upper part of the upper side or the upper part of the back of the screen body should have an air outlet (the rainproof device should be considered). According to the site situation, the steel frame structure of the display should be externally decorated with high-grade stainless steel (matt)
3. Installation requirements:
The unevenness of the pixel installation of each cabinet company name: International Tendering Co., Ltd. Contact: Chen Zeming, Liu Xiuyan Tel: 0512-61127533, 67635087 E-mail: Fax: 0512-67635093 Zip code: Address: Jinji, Suzhou Industrial Park Block A, 4th Floor, Jiacheng Building, 128 Lake Road
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