In order to standardize video display system engineering, ensure project quality, and protect the legitimate rights of construction units, this standard specifies measurement methods for video display systems composed of various display technologies. 1.0.2 This specification is applicable to the cheek display system engineering in new construction, expansion, and renovation projects. The measurement of video display system engineering in 1.0.3 should comply with relevant national laws, regulations, and policies, closely combine objective conditions, reasonably utilize resources, and achieve advanced, reasonable, applicable, and easy to operate methods. The measurement of 1.0.4 video display system engineering should not only comply with this standard, but also comply with the current mandatory national standards. Reference standard GB/T 17309.1-1998 "Methods of measurement for television broadcasting receivers - Part 1: General considerations, measurement of radio frequency and video electrical performance, and measurement of display performance" SJ/T 11141-2003 "General specifications for LED display screens" SJ/T 11281-2003 "Test methods for LED display screens" SJ/T 11324-2006 "Terminology for digital television receiving equipment" SJ/T 11346-2006 "Measurement methods for electronic projectors" SJ/T 11347-2006 Measurement Methods for Digital Television Cathode Ray Tube Display (SJ/T 11348-2006) Measurement Methods for Digital Television Flat Panel Display (CCIR567) Transmission Performance of Television Circuits Designed for International Connection
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China