viDoc® for Smartphone

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Included in the scope of delivery

viDoc® for smartphone with RTK function
GNSS antenna
SP case
Box
USB charging cable

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viDoc® for
Smartphone

Smartphone technische Daten viDoc 1920x1080 2
Height 153 mm
Width 72 mm
Depth 19 mm
Weight 242 g
Temperature range -5 to +35 °C
Humidity 5 – 95 % (non-condensing)

GGNSS antenna

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Width 55.6 mm
Diameter 27.5 mm
Weight < 19 g
Temperature range - 40 to + 80 °C
Humidity up to 95 %
Polarization RHCP
Satellite signals GPS: L1/L2; GLONASS:G1/G2;
Beidou: B1/B2/B3;Galileo:El/E5b
Coverage 360°
Supply voltage 3 - 16 VDC
Consumption < 35 mA
Gain 36 ± 2 dB
Noise figure < 1.5 dB
V.S.W.R. < 2.0
Coverage 360°
Supply voltage 3 - 16 VDC
Consumption < 35 mA

Laser

Measuring accuracy ± 2 mm
Measuring range Ground laser: 0.5 to 40 m
Front laser: 0.5 - 20 m
Laser class 2
Laser type 635 nm, < 1 mW
Measuring times 0.1 to 4 sec.
Supply voltage 2.5 – 3.3 V
Operating temperature 0 to 40 °C

Performance
specifications

Constellation-independent, flexible signal tracking, improved positioning under challenging environmental conditions1 with multi-satellite use. Reduced downtime in the event of loss of signal (up to 5 seconds). The following satellite signals are used simultaneously:

GPS L1C/A (1575.42 MHz); L2C (1227.60 MHz)
BeiDou B1I (1561.098 MHz); B2I (1207.140 MHz)
Galileo E1-B/C (1575.42 MHz); E5b (1207.140 MHz)
GLONASS L1OF (1602 MHz + k*562.5 kHz, k = –7,..., 5, 6)
L2OF (1246 MHz + k*437.5 kHz, k = –7,..., 5, 6)
QZSS

Positioning
services2

Device type Multi-band GNSS high precision receiver
Accuracy of the pulse signals RMS 30 ns
99 % 60 ns
Frequencies of the pulse signals 0.25 Hz to 10 MHz
Convergence time RTK < 10 sec.
Static measurement POSITION 1 cm + 1 ppm
HEIGHT 1 cm + 1 ppm
RTK start-up time3 Cold start (Sec.) 24 sec.
At operating temperature 2 sec.
RTK position accuracy RMS4,5
(repeatability with static
measurement)
POSITION 7 mm at 15 min
HEIGHT 8 mm at 15 min
LOCATION 15 mm at 30 min
HEIGHT 21 mm at 30 min
Speed accuracy 0.05 m/s
System limits Height 5,000 m
Acceleration < 4 g
Speed 500 m/s
IMU Prepared

Power supply

Smartphone operating hours in continuous operation:
Receive and transmit max. 6 hrs.
With active laser module max. 5 hrs.
under real conditions max. 6 hrs.
Battery pack LiPo, 2 x 2,400 mAh, 7.4 Wh, 3.7 V

Model accuracy 6

absolute position and height

with EXIF data < 10 cm
with CSV data < 10 cm
with CSV + GCP data < 2 cm
with EXIF + GCP data
in cloud processing
< 2 cm

1 Challenging GNSS environments are places where there is sufficient satellite availability for the receiver as a prerequisite for minimum accuracy, but where the signal can be partially shaded or reflected by trees, buildings and other objects. The actual results may vary due to the location and atmospheric activitiy, due to strong flickering, the condition and availability of the satellite system and the degree of multipath scattering and signal coverage.

2 Precision and reliability can be affected by certain factors such as multipath scattering, obstacles, satellite geometry and atmospheric conditions. The stated specifications require stable setups, a clear view of the sky, an environment free of electromagnetic interference and multipath scattering, optimal GNSS configurations and, in addition, surveying methods as they are usually used for surveys of the highest order with occupation times adapted to the base lengths. Baselines over 30 km in length require ephemeris accuracy and occupation times of up to 24 hours may be necessary to achieve high-precision static specification.

3 Can be influenced by atmospheric conditions, multipath signals, shadowing and satellite geometry. The reliability of the initialization is permanently monitored to ensure the highest quality.

4 RMS efficiency is based on repeatable on-site measurements. The achievable accuracy and the initialization time can vary depending on the type and performance data of the receiver and antenna, the geographic location of the user, atmospheric conditions, scintillation intensity, the status and availability of the GNSS constellation, the degree of multipath scatteing and the proximity to shading (e.g. from large trees and buildings) vary.

5 Measurement iterations based on 1 minute. Better position accuracy through error rate filtering.

6 The models were mapped with a Vigram Rover and an iPhone 11. The model accuracy depends on the environmental conditions and the calculation settings. The results may vary depending on the software provider.