Dragy VS P-Gear

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Issues Dragy is a not a serious Product in EMC design,

Issues
Dragy is a not a serious Product in EMC design,

Bluetooth is too close with the GPS Antenna , and the Amplifier & Filter of GPS (very weak in EMI ) is bare without metal cover, It will decrease the accuracy of measurement .

Hardware Comparion

Bluetooth
chipset

GPS
Antenna

GPS
Decoder

GPS AMP&Filter

GPS
Antenna

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Powerful & Optimize EMC Actually PGEAR’s GPS Decorder is same with

Powerful & Optimize EMC
Actually PGEAR’s GPS Decorder is same with Dragy

(ublox 8030), but PGEAR combine the GPS and MPU-6050 with complicated algorithm, so it can output accuracy 20hz data, and it has a 8G mem inside , so it can use separate with smartphone.
In the Graphic , we can find Bluetooth is far away with the GPS decoder and the Antenna, GPS’s signal AMP&Filter&Decoder all integrate in one chipset , and with a metal cover , it make PGEAR more stabilize in strong EMI circumstance.

Bluetooth
chipset

Invensense
MPU-6050
G-force & Gyro

GPS
AMP&FILTER Decoder

GPS
Antenna

8G
SDCard

32bit
ARM MCU

Hardware Comparion

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Why HDOP is IMPORTANT? HDOP-horizontal dilution of precision The effect of

Why HDOP is IMPORTANT?

HDOP-horizontal dilution of precision
The effect of the DOP

on the horizontal position value. The more good visible satellites low in the sky, the better the HDOP and the horizontal position (Latitude and Longitude) are.
Above 1.2 means Worst GPS Signal.
Below 0.75 means Best GPS Signal.
Poor signal might cause inaccurate results.
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Clean Opening Page Vivid Opening Page

Clean Opening Page

Vivid Opening Page

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-Two Pages to show Groups -Improper grouping -One Page to show Groups -Reasonable grouping

-Two Pages to show Groups
-Improper grouping

-One Page to show Groups
-Reasonable grouping

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-Fussy design with different distance and speed below -Flexible design to

-Fussy design with different
distance and speed below

-Flexible design to hidden
different info

up to the corner
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-Results with simple design. -Two screenshots to show. -No Personal Description.

-Results with simple design.
-Two screenshots to show.
-No Personal Description.

-Vivid design for

results & details.
-“Screenshot” button for one page.
-Personal Description and Photos.
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-Simple design and function -No personal app ID -No friends contact

-Simple design and function
-No personal app ID
-No friends contact
-No service contact

-Editable

personal profile
-Unique ID for each user
-Convenient friends contact
-Help&Support with online service
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-Input the info for cars by Handwriting. -All the Details with different Brands.

-Input the info for cars
by Handwriting.

-All the Details with different

Brands.
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-No Weathers Details -No HDOP Value -Digital Meter -Local Weathers Details

-No Weathers Details
-No HDOP Value
-Digital Meter

-Local Weathers Details
-DA and Dates
-HDOP Value

Included
-Variable Meter
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-Track Mode with all the circuits in the world. -Ranking and

-Track Mode with all the circuits in the world.
-Ranking and results

with the same circuit.
-Playable data to check every moment.
-Details with the best record of user in the Graph.