Method and system for air conditioning remote control in car

Abstract

Disclosed are a system and a method for air conditioning remote control in a car, in which air conditioning is carried out at various levels depending on situations determined on based on a comparison between the time required for a user to arrive at the car and the operation time of an air conditioner required to change an indoor temperature of the car to a preset temperature upon receiving the request, whereby energy efficiency can be enhanced.

What is claimed is: 
     
         1 . A system for air conditioning remote control in a car, the system comprising:
 an air conditioner equipped in the car; and   a controller configured to control operation of the air conditioner and to communicate wirelessly with the user terminal, the controller having functions of:
 receiving a request for air conditioning remote control from the user terminal, 
 calculating an operation time of the air conditioner required to change an indoor temperature of the car to a preset temperature upon receiving the request, 
 calculating a wait time by subtracting the operation time of the air conditioner from a time required for the user to arrive at the car, and 
 operating the air conditioner after the wait time has passed since receiving the request when the time required for the user to arrive at the car is longer than the operation time of the air conditioner. 
   
     
     
         2 . The system of  claim 1 , wherein the controller receives the preset temperature from the user terminal and calculates the operation time of the air conditioner based on the received preset temperature. 
     
     
         3 . The system of  claim 1 , wherein the controller calculates an air conditioning load based on a difference between a current temperature and a required temperature upon receipt of the request and calculates the operation time of the air conditioner based on the calculated air conditioning load. 
     
     
         4 . The system of  claim 1 , wherein the controller calculates an air conditioning load and the operation time of the air conditioner based on information of the car and a difference between a current temperature and a required temperature upon receipt of the request. 
     
     
         5 . The system of  claim 4 , wherein the information of the car includes a power of the air conditioner and an inner volume of a passenger compartment of the car. 
     
     
         6 . The system of  claim 1 , wherein the controller calculates the time required for the user to arrive at the car based on data received from the user terminal. 
     
     
         7 . The system of  claim 6 , wherein the data received from the user terminal includes data that the user inputs with regard to a time that the user will arrive at the car. 
     
     
         8 . The system of  claim 1 , wherein the controller calculates the time required for the user to arrive at the car based on a position of the user terminal, a position of the car, and a moving speed of the user. 
     
     
         9 . The system of  claim 1 , wherein the controller operates the air conditioner upon receiving the request when the time required for the user to arrive at the car is shorter than or equal to a time required to operate the air conditioner. 
     
     
         10 . The system of  claim 1 , wherein, when the time required for the user to arrive at the car is longer than the operation time of the air conditioner, the controller performs an air blowing mode, in which outdoor air is introduced into an interior of the car without operating the air conditioner, during a waiting time between a time of receiving the request and a time of commencing operation of the air conditioner. 
     
     
         11 . The system of  claim 10 , wherein the air blowing mode is performed when it is determined that cooling is needed at the indoor temperature of the car higher than an outdoor temperature. 
     
     
         12 . The system of  claim 10 , wherein the air blowing mode is performed such that an opening unit providing a passage from an inside of the car to an outside is opened when it is determined that it is not raining. 
     
     
         13 . The system of  claim 12 , wherein the opening unit is closed when the air blowing mode is stopped or when the air conditioner starts to operate. 
     
     
         14 . The system of  claim 10 , wherein the air blowing mode is performed when it is determined that heating is needed at the indoor temperature of the car lower than an outdoor temperature. 
     
     
         15 . A system for air conditioning remote control in a car, a system comprising:
 an air conditioner equipped in the car;   a controller configured to control operation of the air conditioner; and   a server, provided outside the car, having functions of:
 communicating with the user terminal and the controller, 
 receiving the request from the user terminal, 
 calculating an operation time of the air conditioner required to change an indoor temperature of the car to a preset temperature upon receiving the request, 
 calculating a wait time by subtracting the operation time of the air conditioner from a time required for the user to arrive at the car, and 
 operating the air conditioner after the wait time has passed since receiving the request when the time required for the user to arrive at the car is longer than the operation time of the air conditioner. 
   
     
     
         16 . A method for air conditioning remote control in a car, the method comprising:
 receiving a request for air conditioning remote control from a user terminal of a user;   calculating an operation time of an air conditioner required to change an indoor temperature of the car to a preset temperature upon receiving the request;   calculating a wait time by subtracting the operation time of the air conditioner from a time required for the user to arrive at the car; and   operating the air conditioner after the wait time has passed since receiving the request when the time required for the user to arrive at the car is longer than the operation time of the air conditioner.