Pedestrial crash prevention system and operation method thereof
An autonomous vehicle may provide bidirectional communication with mobile terminals of pedestrians. The autonomous vehicle may include a short range communication module for providing a communication interface, and a controller for, when a specific driving condition occurs, activating wireless communication through the short range communication module, periodically broadcasting a beacon signal including vehicle location and speed information, and calculating a danger level for each pedestrian based on pedestrian information included in a response signal corresponding to the beacon signal.
1. An autonomous vehicle comprising:
a short range communication module configured to provide a communication interface; and
a controller configured to:
determine entrance of the autonomous vehicle onto a slow road,
in response to the determined entrance of the autonomous vehicle onto the slow road:
activate wireless communication using the short range communication module,
determine vehicle location information,
determine vehicle driving speed information, and
broadcast a beacon signal that includes the vehicle location, the speed information, and danger level information for an initial entry that is set at an initial value,
receiving a response signal corresponding to the beacon signal, and
in response to receiving the response signal, determine a danger level for at least one pedestrian based on pedestrian information included in the response signal, and
in response to the determined danger level for the at least one pedestrian, broadcast the beacon signal that includes the determined danger level information for the at least one pedestrian.
2. The autonomous vehicle according to claim 1 , wherein the controller is configured to change a transmission period of the beacon signal based on the danger level information.
3. The autonomous vehicle according to claim 1 , wherein the response signal is received from a mobile terminal of at least one pedestrian.
4. The autonomous vehicle according to claim 1 , wherein the response signal is received from at least one of a fixed beacon terminal and a mobile beacon terminal.
5. The autonomous vehicle according to claim 1 , wherein the pedestrian information includes pedestrian group information.
6. The autonomous vehicle according to claim 5 , wherein the controller is configured to determine a level of an emergency mode at least based on pedestrian danger level information and the pedestrian group information.
7. The autonomous vehicle according to claim 6 , wherein when the controller determines that the level of the emergency mode is a first emergency mode, the controller is configured to perform a pedestrian tracking operation while periodically transmitting the beacon signal.
8. The autonomous vehicle according to claim 7 , wherein when the controller determines that the level of the emergency mode is a second emergency mode, the controller is configured to perform pedestrian evasive driving while the vehicle is reducing vehicle speed or changing a lane.
9. The autonomous vehicle according to claim 8 , wherein when the controller determines that the level of the emergency mode is a third emergency mode, the controller is configured to perform a driving stop operation.
10. A method for controlling an autonomous vehicle, comprising:
determining entrance of the autonomous vehicle onto a slow road;
in response to determining the entrance of the autonomous vehicle onto a slow road, activating wireless communication;
determining vehicle location information;
determining vehicle driving speed information;
broadcasting at least one beacon signal including the vehicle location, the speed information and danger level information for an initial entry that is set at an initial value;
receiving a response signal corresponding to the beacon signal from a mobile terminal of at least one user;
determine a danger level for the at least one user based on information included in the received response signal; and
in response to the determined danger level for the at least one user, broadcast the beacon signal that includes the determined danger level information for the at least one user.
11. The method according to claim 10 , further comprising changing a transmission period of the beacon signal based on the danger level information.
12. The method according to claim 10 , wherein the response signal is received from a mobile terminal.
13. The method according to claim 10 , wherein the response signal is received from a beacon terminal.
14. The method according to claim 10 , further comprising determining a level of an emergency mode at least based on danger level information and group information.
15. The method according to claim 14 , further comprising performing a tracking operation while periodically transmitting the beacon signal when the determined level of the emergency mode is a first emergency mode.
16. The method according to claim 15 , further comprising performing evasive driving when the determined level of the emergency mode is a second emergency mode.
17. The method according to claim 16 , further comprising performing a driving stop operation when the determined level of the emergency mode is a third emergency mode.