Xiaomi Pocophone F1 64Gb+6Gb Dual LTE Руководство по эксплуатации онлайн [79/118] 775100

static (magnet-induced) magnetic fields.

[C-1-6] MUST have a resolution equal or denser than 0.6 µT.

[C-1-7] MUST support online calibration and compensation of the hard iron bias, and

preserve the compensation parameters between device reboots.

[C-1-8] MUST have the soft iron compensation applied—the calibration can be done either

while in use or during the production of the device.

[C-1-9] MUST have a standard deviation, calculated on a per axis basis on samples

collected over a period of at least 3 seconds at the fastest sampling rate, no greater than

1.5 µT; SHOULD have a standard deviation no greater than 0.5 µT.

SHOULD implement TYPE_MAGNETIC_FIELD_UNCALIBRATED sensor.

[SR] Existing and new Android devices are STRONGLY RECOMMENDED to implement the

TYPE_MAGNETIC_FIELD_UNCALIBRATED sensor.

If device impelementations include a 3-axis magnetometer, an accelerometer sensor and a

gyroscope sensor, they:

[C-2-1] MUST implement a TYPE_ROTATION_VECTOR composite sensor.

If device impelementations include a 3-axis magnetometer, an accelerometer, they:

MAY implement the TYPE_GEOMAGNETIC_ROTATION_VECTOR sensor.

If device impelementations include a 3-axis magnetometer, an accelerometer and

TYPE_GEOMAGNETIC_ROTATION_VECTOR sensor, they:

[C-3-1] MUST consume less than 10 mW.

SHOULD consume less than 3 mW when the sensor is registered for batch mode at 10 Hz.

7.3.3. GPS

Device implementations:

SHOULD include a GPS/GNSS receiver.

If device implementations include a GPS/GNSS receiver and report the capability to applications

through the android.hardware.location.gps feature flag, they:

[C-1-1] MUST support location outputs at a rate of at least 1 Hz when requested via

LocationManager#requestLocationUpdate .

[C-1-2] MUST be able to determine the location in open-sky conditions (strong signals,

negligible multipath, HDOP < 2) within 10 seconds (fast time to first fix), when connected

to a 0.5 Mbps or faster data speed internet connection. This requirement is typically met

by the use of some form of Assisted or Predicted GPS/GNSS technique to minimize

GPS/GNSS lock-on time (Assistance data includes Reference Time, Reference Location

and Satellite Ephemeris/Clock).

[SR] After making such a location calculation, it is STRONGLY RECOMMENDED

for the device to be able to determine its location, in open sky, within 10

seconds, when location requests are restarted, up to an hour after the initial

location calculation, even when the subsequent request is made without a

data connection, and/or after a power cycle.

In open sky conditions after determining the location, while stationary or moving with less

than 1 meter per second squared of acceleration:

[C-1-3] MUST be able to determine location within 20 meters, and speed within

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