Technical Features of Tracker

1. Functions
   1. Hardware Related Functions

• The device on the wearable wristband (tracker) will be turned on and off from a button. We will understand if it is on or off with an LED.
• When the device is connected with the phone we will see the led light green as a notification.

1. Software Related Functions

• The android application will be connected to the target device with a code that is assigned to each tracker uniquely. Multiple devices can connect to a leader phone, when the leader mode is preffered. Hence, a device is not uniquely assigned to a single target mobile phone.

Geo-Fencing[4]:

• Once it is connected, the tracker can be seen in the map of the main page in the application.
• The user can define the following in the options page:

1. Choosing the type (static or dynamic) of tracker:

1. A static area in the map that the tracker should not get out of. This area can be a circular shape, or it can be drawn with the fingers on the map. This area can be updated while the system is active.
2. A dynamic area in which the center is the mobile phone and the radius is defined by the user. The radius will be choosen by entering a number.

1. The heart beat rate limit at which the application will be notified (lower and upper limit).
2. The frequency of the transmission and reception of the GPS tracker device. This way the user choose the optimal location update frequency to have greater accuracy or to reduce the charge consumption of the device. This will save power and increase the battery life time.
3. Enabling and disabling each property seperately (heart beat rate, getting out of a constant area and fall-detection).
4. Choosing the notification type (alarm or message). The alarm is going to keep playing until the user stops it. A message is going to be send repetitively if the person is outside an area or the heart beat is not normal. Checking the condition of the patient or child is the users responsibility.

• After being connected to it, the mobile application will notifiy the user if one of the condition blow happens:

• The tracker is outside the predefined area.
• The person has fallen.
• The heart beat of the person is not in the normal limits.
• After the user is sure that the person is secured (not lost, not fallen, has normal heart beat), the alarm can be closed. Unless the active function is closed or the observed person is not triggering one of the sensors of the tracker, the alarm will reactivate itself after a certain time (30 seconds).