source:truck tracking webfleet solutions release time:2023-02-03 Hits: Popular:realtime gps tracker online
????
????The*price indicators of GPS module performance are mainly receiving sensitivity, positioning time, position accuracy, power consumption, time accuracy, etc. The module boot positioning time is very different in different start -up modes. Generally speaking, cold start time refers to the situation that does not save any data inside the module, including the stars, time, etc., which are generally nominal within 1 minute; warm start time refers to Star calendar (generally no more than 2 hours), but the time deviation is very large, which is generally nominal within 45 seconds; the hot start time refers to the situation where the shutdown does not exceed 20 minutes and the RTC time error is very small. Generally nominal within 10 seconds; re -capture time is like a car drilled through a tunnel, and the satellite is captured when the tunnel is out of the tunnel. Generally nominal within 4 seconds.
????If the module has been placed for a long time after the positioning, or the module is transported to a place hundreds of kilometers away after the positioning, there is a star calendar inside the module, but this star calendar is wrong or does not have reference significance. In these cases, the positioning time may take a few minutes or more time. Therefore, when the GPS module is exported, the data inside the module should be cleared, so that the customer can quickly start positioning when the module gets the module.
????Positioning accuracy can be inspected under static and dynamic conditions, and the dynamic positioning effect is better than static positioning. The positioning parameters nominal nomated by the GPS module refer to the case where the satellite signal is excellent under a completely open sky. Therefore, it is difficult to reach the nominal positioning time and positioning accuracy in conventional testing. There are two common horizontal positioning accuracy description methods: one is? M CEP, that is, a circular probability error, which means that the probability of 50%of the measured points is located in a circle with real coordinates as a circle and radius; The second is? M 2DRMS, that is, the average root error of the two -fold average, which means that the probability of about 95.5%of the measured points is located in a circle with real coordinates as a round heart and a radius.
Read recommendations:
Global Positioning System Fix Data (GGA) GPS positioning information
Last article锛?Positioning accuracy of GPS module
Next article锛?GPS system space part
Related Information
gps vehicle tracker manufacturer
2023-04-23mini gps tracker sales
2023-04-23fleet gps tracking maker
2023-04-23gps tracker for bike
2023-03-16Hidden GPS Trackers
2023-04-11car gps tracker sales
2023-04-234G GPS Tracker manufacturer
2023-04-23gps vehicle tracker price
2023-04-23truck tracking webfleet solutions
2023-03-16GPS Tracker wholesale
2023-04-11TK200AM-Disposable GPS Tracker
2022-06-21G200NY -Cow/Camel GPS Tracker
2022-06-21TK100N- Multi functional GPS Tracker
2023-10-06G183 serials -JOBD GPS Tracker
2022-09-06G01 Smallest Personal Old People Mini GPS Tracker for Kids
2022-06-19DGPS Principle
2022-11-19GPS market prospects.gps tracker no monthly fee company
2023-05-24How to install and use the car GPS positioner
2023-02-14Functions of GPS
2022-10-12GPS application in wild animals.gps tracker no monthly fee manufacturer
2023-04-24GPS monitoring system develops rapidly
2023-02-08GPS vehicle management system for vehicle management methods.gps tracker f眉r auto webfleet solutions
2023-03-14With GPS positioning function police smart clothing
2023-02-09Gps speed limiter.How to use mobile phones to locate and track vehicles with GPS installed
2023-10-25Domestic GPS operators.plug & play Obd gps tracker distributors
2023-08-18The development of GPS
2022-10-13Opportunities brought by national policies for GPS industry
2022-12-17How to maintain the GPS locator of the car.gps tracker with magnet Manufacturing
2023-03-28What are the elements of buying a driving recorder.gps tracker no monthly fee wholesale
2023-05-09GPS Development.cat gps tracker manufacture
2023-07-20