Bidders are requested to promptly bid at , , (unlimited download of procurement documents), Putian government procurement, Fujian Provincial Tendering and Purchasing Network Putian City Bidding Center Online corrections or modification notices.
Entrusted by the purchaser to conduct government procurement of the projects and services mentioned in the second part of this document by means of open tendering and procurement, qualified suppliers are welcome to participate in the bidding.
I. Item No.: PTCG2010002-G
Second, the project name: LED display
Third, the bidder qualification requirements:
1. A domestic supplier or manufacturer with legal person status, which has been approved by the industry and commerce to produce goods or services as described in this bidding document.
2. Compliance with the conditions stipulated in Article 22 of the Procurement Law;
3. Two or more bidders may form a consortium and bid as a bidder.
3-1. The joint bid must comply with the provisions of Article 24 of the Procurement Law.
3-2. Either party in the consortium may not jointly bid on the same goods separately or jointly with other bidders.
4. When the bidder has one of the following related circumstances, the bidder may not bid at the same time in the same goods bidding.
4-1. The legal representative is two legal persons or two or more legal persons of the same person or immediate family members of the same person.
4-2. The parent company, the invested company that directly or indirectly holds 50% or more of the shares.
4-3. All invested companies that are directly or indirectly holding 50% or more of the same parent company.
5. Other qualification conditions for bidders are required for each contract package.
4. Bidding documents obtained: The bidders directly download the bidding documents from the Putian City Bidding Center website , , At the same time, the relevant clarifications, changes and Q&A minutes of the bidding shall be downloaded through the online enquiry on the 15th day before the deadline for submitting the bidding documents, and the website shall be posted on the website 3 days before the deadline for submitting the bidding documents to see if there is any notice of deferred bid opening.
V. Time for answering questions: 15 pm on March 3, 2010;
6. Deadline for submission of bid documents and time for bid opening: 9:00 am on March 19, 2010, overdue delivery will not be accepted;
VII. Bid Opening Location: Putian City Bidding Center, 4th Floor, Building 7, Putian Municipal Government.
8. Bid security: The bidder must pay the bid bond: the bidder must pay no less than RMB 1000. The whole guarantee should be deposited in the form of transfer, wire transfer or cash account at 9:00 on the opening date to the Putian City Tendering and Bidding Center. Account (subject to the account, do not accept cash, no cash refund). Please indicate the number of the purchase document on the remittance voucher.
Account Name: Putian City Bidding Center
Bank of deposit: Agricultural Bank of China Putian Chengxiang Branch City Office
Account number: 13441501040000188
Nine, contact: Xiao Gao, Xiao Chen
Address: 4th Floor, Building 7, Business Building, Putian City, Post Code: 351100
Tel: (0594) 2639728, 2639718, 2679318 Fax: (0594) 2639718
Putian City Government Procurement Center
The name, quantity and technical parameters of the procurement project on February 24, 2010:
Contract package 1, LED display, delivery installation location in Putian City (direct commissioned by the provincial direct unit)
No. Product item reference brand model specification or technical index or required performance quantity note
1
Comprehensive building display room 3.75 monochrome (3m * 1.5m); indoor 3.75 monochrome LED display; length 10 * width 10; effective display size: length 3.04m * width 1.52m, minimum display body cost 3200 yuan /m2 4.62 square meters
2
Wenyuan Building display room 3.75 monochrome (2m*1.2m); indoor 3.75 monochrome LED display; length 6.5 * wide 8; effective display size: length 1.976m * width 1.216m minimum display body cost 3200 yuan / M2 2.4 square meters
3
Teaching building display sub-outdoor p10 monochrome (length 3.9m*0.6m); sub-outdoor p10 monochrome LED display; length 12 * width 4; effective display size: length 3.84m * width 0.64m, minimum display Body cost 2000 yuan / m2 2.64 square meters
4
Training building display outdoor p10 monochrome (9.5m*0.7m); outdoor p10 monochrome LED display; length 30 * width 4; effective display size: length 9.6m * width 0.64m, minimum display body cost 3200 Yuan/m2 6.144 square meters
5
System equipment special LED control software; asynchronous control system 800 yuan per set; special LED aluminum alloy frame; this project includes installation, commissioning, material fee; tax-included ticket
1 set of contract signing period within 7 days from the date of receipt of the bid-winning notice; delivery period contract signed within 10 days after acceptance of the acceptance requirements, according to the contract, the acceptance of after-sales service requirements, one-year payment settlement, one-time payment, the payment is directly from the purchaser The payment supplier qualification is in line with the government procurement law. Other requirements of the general supplier. The project includes installation, commissioning, and material costs. Tax-included, the installation location does not exceed 5 meters. The bidder determines the lowest evaluation price method. Attachment: Ф 3.75 monochrome indoor Display technical parameters Ф3.75 indoor monochrome pixel tube pixel tube diameter:
3.75 mm
Point spacing:
4.75mm
Pixel tube origin:
Taiwan luminous point color:
1 red density:
44320 points / m2
Base color:
Red cell board unit board size:
304mm × 152mm
Number of module rows and columns:
64 points wide x 32 points high resolution:
2048 points / block best line of sight:
5~40m
Best perspective:
±85 degrees to display content:
Text and image working environment temperature:
-20 ° C ~ +60 ° C
Relative humidity:
≤95%
Screen weight:
30kg/m2
Screen thickness:
≤20cm
Power supply operating voltage
220V
Maximum power consumption ≤300W/ m
System control host
PIII or above control mode asynchronous mapping control main technical parameter module specification
1R8×8 dot matrix driver
LED dedicated drive device 74HC595
Drive mode
1/16 scan drive scan frequency ≥ 120 frames / sec refresh rate ≥ 60 frames / sec display control mode
DVI
Effective communication distance
Software within 120m
LED studio
PH10mm (1 red) outdoor monochrome LED display
PH10mm (1 red) outdoor monochrome LED display
1. Pixel tube point spacing: 10mm Luminous point color: 1 red pixel tube Origin: Taiwan Guanglei tube density: 10000 points / m2
2, unit box module size: 320mm × 160mm module row number: length 32 points × width 16 points resolution: 512 points / box module weight: 35kg / m2 mean time between failures: 10000 hours
3, the screen full screen viewing angle: horizontal 70 °, vertical 30 ° ambient temperature: storage -35 ° C ~ +85 ° C Operating temperature: -20 ° C ~ +70 ° C Relative humidity: ≤ 95% Screen thickness: ≤ 40cm
4, power supply working voltage: 220V average power consumption: 350 ~ 480W / m2
5, control system operating system: WIN 98/WIN 2000/WIN NT control mode: asynchronous / synchronous control
6, the main technical parameters of the drive device: the use of LED dedicated drive device drive mode: static drive refresh frequency: ≥ 120 frames / second frame rate: ≥ 60 frames / second gray / color: 256 levels of brightness: ≥ 2000cd / m2 display control mode : Synchronous video brightness adjustment mode: software adjustment applicable life: ≥100000 hours switching power supply load: 12V/30A
7, software
LED player software
Advantages of Brushless Dc Motor
- Brushless motors are more efficient as its velocity is determined by the frequency at which current is supplied, not the voltage.
- As brushes are absent, the mechanical energy loss due to friction is less which enhanced efficiency.
- BLDC motor can operate at high-speed under any condition.
- There is no sparking and much less noise during operation.
- More electromagnets could be used on the stator for more precise control.
- BLDC motors accelerate and decelerate easily as they are having low rotor inertia.
- It is high performance motor that provides large torque per cubic inch over a vast sped rang.
- BLDC motors do not have brushes which make it more reliable, high life expectancy, and maintenance free operation.
- There is no ionizing sparks from the commutator, and electromagnetic interference is also get reduced.
- Such motors cooled by conduction and no air flow are required for inside cooling.
Disadvantages of Brushless DC Motors
- BLDC motor cost more than brushless DC motor.
- The limited high power could be supplied to BLDC motor, otherwise too much heat weakens the magnets and insulation of winding may get damaged.
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