Composition and Structure
Composition
GNSS receiving equipment should generally include the following parts: - GNSS signal receiving antenna GNSS receiver host; - Power supply:
- Display unit (optional)
- a transmission device that transmits received data to a computer; - Data format conversion and data processing software—— For real-time dynamic measurement, a data link should be equipped The data link of GNSS receiving equipment for dynamic measurement can use data transmission radio stations, as well as communication methods such as CDMA, GPRS, and the Internet
Structure
The GNSS receiving equipment shell should have a certain degree of stiffness and strength. The connection of various connecting components of GNSS receiving equipment should be stable and reliable
Appearance
The surface of GNSS receiving equipment should not have obvious scratches, cracks, or deformation.
Function
Self check
GNSS receiving equipment should have a power on self test function.
Alarm
GNSS receiving equipment should have an alarm prompt function in case of low power supply voltage, data storage failure, data link communication failure, satellite tracking failure, etc
Storage
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