User's Manual

Table Of Contents
33
Notes:
1. To protect privacy, make sure that no people are in the view of the sensor during the
calibration.
2. Users must be within Bluetooth range of the sensor (~5m) in order to do the auto-calibration,
because the background will be updated. In this case, please ensure that the phone’s
Bluetooth is turned on, and that no other phone is paired to the sensor.
3. Manual calibration can be done remotely, because the background is not updated.
4. Currently the sensor only sends alerts for falls where the upper body of a person is on the
ground. If a person falls but sits on the ground, the sensor may not send the fall detection
alert. To trigger the alert and get the help in this case, the person can either fall to the ground
completely, or face the sensor and wave a hand to trigger the waving detection alert, see Sec.
4.2.15.
4.1.5 Other Important Settings
This completes the necessary steps to add a sensor to the account, and the basic features of the sensor
can be used, such as sticker figure streaming, fall detection and waving-hand detection. However, to use
other face recognition-related features, such as Region of Interest and statistics of daily activities, the
people information needs to be added to the system, as show in Sec. 5.