SJ/T 11406-2009 English PDF (SJT11406-2009)

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SJ/T 11406-2009: Specification of LED panels for stadium and gymnasium
SJ/T 11406-2009
SJ
ELECTRONIC INDUSTRY STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 31.120
L 63
Record No.:
Specification of LED panels for stadium and
gymnasium
ISSUED ON: NOVEMBER 17, 2009
IMPLEMENTED ON: JANUARY 01, 2010
Issued by: Ministry of Industry and Information Technology of PRC
Table of Contents
Foreword ... 4 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 7 
4 Classification and grading ... 8 
4.1 Classification ... 8 
4.2 Characteristic grade ... 8 
5 Requirements ... 8 
5.1 Standard test conditions ... 8 
5.2 Functional characteristics of panel ... 9 
5.3 Optical performance ... 11 
5.4 Electrical performance of panels ... 12 
5.5 Structure, appearance, mechanical properties of panels ... 13 
5.6 Hardware environment of panel ... 15 
5.7 Software environment of panel ... 17 
5.8 Safety requirements ... 17 
5.9 Power supply ... 17 
5.10 Environmental adaptability ... 18 
5.11 Electromagnetic compatibility ... 18 
5.12 Resistance to wind pressure ... 18 
5.13 Anti-corrosion ... 18 
5.14 Reliability requirements ... 19 
6 Test method ... 19 
6.1 Test instrument and software ... 19 
6.2 Test method ... 19 
7 Inspection rules ... 27 
7.1 Inspection items ... 27 
7.2 Identification ... 27 
7.3 Quality consistency inspection ... 29 
8 Markings, packaging, transportation, storage ... 31 
8.1 Markings ... 32 
8.2 Packaging ... 32 
8.3 Transportation ... 33 
8.4 Storage ... 33 
References ... 34 
Specification of LED panels for stadium and
gymnasium
1 Scope
This specification stipulates the definition, classification and grading, technical
requirements, test methods, inspection rules, marking, packaging,
transportation, storage requirements of LED panels for stadium and gymnasium.
This specification applies to the design, manufacturing, quality inspection,
installation, acceptance of LED panels for stadium and gymnasium (hereinafter
abbreviated panel).
This specification does not include panels for guiding directions OR the panels
in the timing and scoring system, in the stadium and gymnasium.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB 2312 Code of Chinese graphic character set for information interchange
- Primary set
GB/T 2423.17-1993 Basic environmental testing procedures for electric and
electronic products Test Ka: Salt mist
GB/T 3453-1994 Basic mode control procedures for data communications
(ISO 1745:1975; 1177; 2111; 2628; 2629, NEQ)
GB 4208-1993 Degrees of protection provided by enclosure (IP code) (IEC
529:1989, EQV)
GB/T 6107-2000 Interface between data terminal equipment and data circuit
terminating equipment employing serial binary data interchange (EIA/TIA-
The ambient temperature is 15 °C ~ 35 °C; the relative humidity is 15%RH ~
80%RH; the atmospheric pressure is 86 kPa ~ 106 kPa; the power supply
voltage is 220 x (1 ± 10%) V, 50 Hz ± 1 Hz. The testing of optical performance
shall be able to carry out, in the normal direction of the panel, under the
following illuminance: 10 x (1±10%) lx for indoor panels, 40 x (1±10%) lx for
outdoor panels, at the absence of obvious colored light source.
5.2 Functional characteristics of panel
5.2.1 Graphic and text panels
It has the display function of letters, numbers, text, charts, graphics. Each
primary color shall have a grayscale processing capability, which is greater than
level 16 (color level equal to 4 bits). The animation display is consistent with the
display of the corresponding area, on the main computer monitor.
5.2.2 Video panel
In addition to the functional characteristics of the graphic and text panel, each
primary color shall have grayscale processing capabilities of level 256 (color
scale equal to 8 bits). It has the animation display function and video signal
playback function.
5.2.3 Display control
The panel shall be able to display the rolling timing, backward timing, pause
timing of the game, in a real time manner; perform rolling display and page
turning to display the running results of the game; automatically and manually
switch the displayed text content; make the characters flash one by one, clear
screen (black screen). The letters, digital, text display is stable, clear; it has no
crosstalk, glare, sawtooth; the display color is uniform.
For the panel with graphic and text display function and video display function, it
shall be able to adjust the panel's brightness, color, contrast, grayscale,
horizontal and vertical position of the image, working method, text, chart and
graph, animation; the live broadcast images shall be able to switch between
each other automatically or manually.
5.2.4 Characters displayed on the flat panel
For the flat panels of swimming venues used for international competitions, they
must meet the requirements of the competition rules of the International
Swimming Federation.
For the flat panels, which are used in other stadiums and gymnasiums, AND
the panels of other installation structures, the display content, display column
requirements of GB/T 6107-2000 and GB/T 3453-1994.
5.6.3 Communication between the data conversion part and the host
computer
For the panel, which uses the host computer, it shall use a physical transmission
medium, that meets its functional requirements and communication protocol
requirements, to transmit the 256-level above grayscale video signal to the unit
plate of the panel, for display.
For the panel, which uses an embedded processor, its serial binary data
communication shall meet the requirements of GB/T 6107-2000 or RS-485
interface standard.
5.6.4 Requirements for structural installation
The panel body shall use a supporting structure, that guarantees its structural
strength, balance, stability, resistance to earthquake. Behind the panel, there
shall be enough space, to facilitate the heat dissipation, installation, use,
maintenance of the panel.
The stadium panel shall be placed in a direct lightning protection zone (LPZ OB),
which is protected by an external lightning protection system. The grounding
device of lightning protection system shall be reliably grounded. For stadium
panels, which are used in areas prone to thunderstorms, it shall take measures,
to prevent nearby lightning discharges from causing lightning induction
(electrostatic induction and electromagnetic induction) on the panel. It shall be
designed and installed according to the requirements of GB/T 19271.1-2003.
For the comprehensive gymnasiums, natatoriums, diving halls, other individual
sports gymnasiums with independent architectural structures, sports center in
gym-style buildings, the panels shall be placed in the first shielded protection
zone (LPZ1), in the stadium and the sports center, where it is not susceptible to
direct lightning strikes. They are connected to the common grounding system
of the gymnasium and the sports center, thro...