GF82.95-P-2016TXU Emergency Call Function

GF82.95-P-2016TXU Emergency Call Function
- with CODE (359) TELE AID emergency call system

Activation
In the event that a driver gets into an emergency situation in a remote location, a service employee can get an overview of the situation inside the vehicle using the data received from the emergency call system control unit (N123/4) and initiate corresponding remedial measures. A Telematic Alarm Identification on Demand (emergency call system) (TELE AID) emergency call can be initiated automatically or manually.

Manual emergency call
It is possible to make a manual emergency call at any time. A manual emergency call is made by pressing the SOS switch (S93/3s1) labeled "SOS". It is integrated into the overhead control panel control unit (N70). The SOS switch is read in via a discrete line by the emergency call system control unit. To trigger manually, the SOS switch must be pressed for longer than 0.5 s.

The red LED flashes on and off for the duration of the emergency call. Then, an emergency call message is immediately transmitted to the nearest emergency call center.

automatic alarm call
An automatic emergency call is possible after "circuit 15R ON". The accident is automatically detected by the restraint systems control unit (N2/7). The emergency call system control unit receives the crash information from the restraint systems control unit via a direct digital crash signal, and additionally (redundantly) via the Controller Area Network bus class B (interior) (CAN-B). In the event of an accident, an automatic emergency call is made immediately. This occurs no matter how severe the detected accident actually is. With crash deployments, the red LED flashes on and off for the duration of the emergency call.

The user is now able to connect by telephone to the emergency call center. The call is ended by the emergency call center. The emergency call system control unit deactivates the emergency call request both for a manual and an automatic emergency call after 5 unsuccessful attempts.

It is only permissible to trigger a TELE AID emergency call in emergencies, noncompliance is a punishable offense.

Emergency call telegram, creation
In the event of an emergency call, all the data for an emergency call telegram are compiled by the emergency call system control unit. The following data are automatically transmitted in an emergency call telegram as an SMS:
^ Subscriber identification module (SIM) data
^ Phone number
^ Type of deployment (manual or automatic emergency call)
^ Vehicle data (e.g. circuit status)
^ Crash information (severity of accident), only for an automatic emergency call
^ Position data
^ Vehicle direction and speed

Emergency call telegram, transmission
In the event of an emergency call, in addition to active telephone connections, active service calls (MB-Info or roadside assistance call) are also interrupted. The emergency call system control unit sends the emergency call telegram to the nearest emergency call center and at the same time always establishes a telephone connection to the emergency call center. If the emergency call was started automatically and the connection to the emergency call center was not possible, a telephone connection is automatically established to the police emergency phone number "911". In such case, no emergency call data are transmitted. The emergency call must then be made verbally. With a manual emergency call, this procedure may be configured.

The emergency call system must be authorized for transferring an emergency call telegram.

In a normal case, telephone connections are established via the telephone antenna (A2/49a1) located on the roof. If the telephone antenna is defective, e.g., in the event of a rollover, 2 emergency antennas are available in the rear bumper of the vehicle, which mainly consist of the emergency call system antenna splitter (A2/25), the emergency call system left backup antenna (A2/54), and the emergency call system right backup antenna (A2/55). The emergency call system control unit detects the antenna failure and consequently actuates the backup antennas automatically.