This standard specifies the general requirements, functional requirements, performance requirements, test methods, inspection rules, installation, marking, packaging, transportation, and storage requirements for urban bus and trolley bus intelligent terminals. This standard is applicable to the design, production, inspection, and use of on-board intelligent terminals installed on urban buses and trams nationwide. Vehicle video monitoring terminals, vehicle dispatch terminals, and other intelligent terminals for operating vehicles can be used under the same technical conditions. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 2423.1 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test A: Low Temperature GB/T 2423.2 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test B: High Temperature GB/T 2423.3 Environmental Testing - Part 2: Test Methods - Test Cabs: Constant Damp Heat Test GB/T 2423.5 Environmental Testing for Electrical and Electronic Products - Part 2: Test Methods - Test Ea and Guidelines: Impact GB/T 4208-2017 Degrees of Housing Protection (IP Code) GB/T 19056-2012 Vehicle Travel Recorder GB/T 19951-2005 Test Method for Electrical Disturbance Caused by Electrostatic Discharge on Road Vehicles GB/T 20815-2006 Video Security Monitoring Digital Recording Equipment GB/T 21437.2-2008 Road Vehicles - Electrical Disturbance Caused by Conduction and Coupling - Part 2: Electrical Transient Conduction along Power Lines GB/T 22484- Urban Bus and Trolley Bus Passenger Transport Service Specification GB/T 32852.1 Urban Passenger Transport Terminology Part 1: General Terminology JT/T 794-2011 Technical requirements for on-board terminals of satellite positioning systems for road transport vehicles QC/T 420 Automotive fuses QC/T 29106 Technical conditions for low-voltage wire harnesses for automobiles YDC 079 Technical specifications and testing methods for wireless local area networks for mobile user terminals 3 Terms and definitions defined in GB/T 32852.1 and the following terms and definitions apply to this document. 3.1 The intelligent terminal in the vehicle is used for the scheduling business of urban public buses and trams. It also has functions such as positioning, remote communication, vehicle data collection, automatic station announcement, audio and video storage, and can communicate with onboard expansion devices. 3.2 Expand the peripheral equipment of the vehicle intelligent terminal according to actual needs
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