How to Get an Accurate GPS

Introducing a new customer information system to utilities often requires data collection to complete missing data. Identifying the data to be collected is important before entering the box. Additional data can be added because the cost of adding additional data on the on-site campaign is less.

Features or customers' GPS coordinates are important data for the company. The most important question is how to get accurate GPS during field collection. You can see how GPS works before designing GPS activities.

There are many ways to get GPS accuracy, but most of my experience is to get PDOP in your app. PDOP is defined in the UIOWA.EDU GPS Glossary as follows:

"PDOP: Percent dilution of position GPS satellite configuration The amount of error is (less than 4 PDOPs) gives you the best possible accuracy (below 1 meter) Accuracy between 4th and 8th is acceptable, and 8inspecific accuracy. "

Simple words, PDOP is a pointer that tells you that the GPS coordinate you are going to do is pretty enough for satellite, enough signal strength, good satellite positions, and so on. The lower the PDOP value, the better.

If you want to buy GPS HHU, ask your dealer if you have a PDOP module. If you purchased the GPS HHU, find googl to find PDOP .dll or modules that can be integrated into HHU applications.

After installing this gadget, you can always remember the surveys to get GPS coordinates while the PDOP values ​​shown are as small as possible. This will give you additional reminders:

– Avoid high buildings.

– avoid overcrowding or other obstacles.

– Testimonials are too close to the surveyors. Yes, her body blocks the signal.

– and other strategies.

If you want better GPS accuracy, you can also plan your GPS data collection time. All satellites rotate after their career, so you can estimate the best time in the area to make more satellites stronger. The schedule of satellites is recorded by the Almanac. Simplify your conversation to try Trimble's design software. You can try freely.

Source by Aschode Tan

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