In-vehicle emergency call apparatus
AssigneeDenso Corporation
InventorKouji Shinoda
Life of this patent
Estimating the term…
Abstract
A start trigger of an emergency call occurs. In this case, an in-vehicle emergency call apparatus mounted in a vehicle does not transmit all the positional data items presently stored in a memory unit to a service center. Alternatively, the in-vehicle emergency call apparatus transmits only the newest positional data item to the service center. Thus, even if a communication link with the service center has a low transmission speed, the positional data of the vehicle can be promptly notified to the service center.
Claims7
An in-vehicle emergency call apparatus for a vehicle, the apparatus comprising:
- a positional data acquisition unit configured to acquire positional data items in a time series;
- a positional data storing unit configured to store the positional data items acquired in the time series up to a predetermined number;
- and
- a control unit configured to transmit to a service center a positional data item stored in the positional data storing unit,
- wherein:
- (i) at a trigger time when a start trigger signal of an emergency call occurs, the control unit transmits to the service center only a first newest positional data item which is newest among positional data items stored in the positional data storing unit at the trigger time;
- and
- (ii) at a route requested time when receiving a route request signal requesting a transmission of route information from the service center after the trigger time, the control unit transmits to the service center additional positional data items which are stored in the positional data storing unit at the route requested time and were not transmitted to the service center at the trigger time.
A method for transmitting an emergency call from a vehicle to a service center, the method comprising:
- acquiring positional data items in a time series;
- storing in a positional data storing unit the positional data items acquired in the time series up to a predetermined number;
- and
- transmitting at a trigger time when a start trigger signal of an emergency call occurs to the service center, only a first newest positional data item which is newest among positional data items stored in the positional data storing unit at the trigger time;
- receiving, after the trigger time, a route request signal to request a transmission of route information from the service center;
- and
- transmitting, upon receiving the route request signal, to the service center additional positional data items which are stored in the positional data storing unit at the route requested time and were not transmitted to the service center at the trigger time.
Dependencies are inferred from the claim text.