Device for assisting safe exit from vehicle, system having the same, and method thereof

A vehicle system comprising:

• a device for assisting a safe exit from a vehicle, wherein the device is configured for determining a surrounding situation around the vehicle and an intent of a passenger to exit from the vehicle, and performing a step-by-step notification based on the determination;
• and
• a sensing module for sensing the surrounding situation and a movement of the passenger,
• wherein the device detects an external object approaching the vehicle using a radar sensor,
• the radar sensor calculates a distance to the external object based on a frequency difference between a transmitted signal and a received signal,
• the received signal is a radar wave to be reflected by the external object, and
• when the external object enters a set sensing range of the radar sensor, the device calculates a coordinate of the external object using differences of distance values between the external object and receivers based on signals received by the receivers.

A method for assisting a safe exit from a vehicle, the method comprising:

• sensing, by a sensing module, a surrounding situation around the vehicle;
• determining, by a processor, an intent of a passenger to exit from the vehicle;
• and
• performing, by the processor, a step-by-step notification based on the sensed surrounding situation and the determined intent of the passenger to exit from the vehicle,
• wherein the sensing module detects an external object approaching the vehicle using a radar sensor,
• the radar sensor calculates a distance to the external object based on a frequency difference between a transmitted signal and a received signal,
• the received signal is a radar wave to be reflected by the external object, and
• when the external object enters a set sensing rage of the radar sensor, the processor calculates a coordinate of the external object using differences of distance values between the external object and receivers based on signals received by the receivers.