NETWORK SYSTEM, VEHICLE AND CONTROL METHOD THEREOF

A vehicle and a network system are provided to operate the air conditioning apparatus of the vehicle when a passenger within the vehicle is left unattended. The vehicle transmits a signal via a vehicle network to rescue the rear passenger, thereby ensuring passenger safety. The vehicle includes an output device and a communicator configured to communicate with a user terminal, an air conditioner, a sensor. The sensor obtains a movement of the passenger and a controller outputs an identification image through the output device when a movement signal of the passenger exceeds a reference signal after the vehicle doors are closed.