On-vehicle situation detection apparatus and method

An on-vehicle situation detection method comprising:

• performing driver recognition of calling pre-stored driver information to compare whether the driver information coincides with a current driver of a vehicle;
• performing driving pattern calling of calling a pre-stored driving pattern of the driver identified by the performing driver recognition from a memory unit;
• performing detection using at least one sensor, of collecting driver status information and vehicle driving information or vehicle surrounding obstacle information;
• performing driving pattern learning of learning the pre-stored driving pattern called by the performing driving pattern calling and a driving pattern derived from the performing detection;
• performing weight value determination of determining a weight value for data acquired from the performing detection, based on the driving pattern learned in the performing driving pattern learning;
• performing determination of determining a safe driving state of the driver, based on the data to which the weight value determined in the performing weight value determination is assigned;
• and
• performing warning of warning the driver when the driver is determined to be not in the safe driving state in the performing determination,
• wherein the performing weight value determination assigns a weight value determined according to impact on a driver's integrated risk index to the data acquired by the performing detection,
• wherein the performing weight value determination compares the acquired data and the integrated risk index with an information data reference value and an integrated risk index reference value for updating the weight value,
• wherein the performing weight value determination changes a weight value according to the following equation:
• α(n+1)=α(n), if W<dW and R≧dR
• α(n+1)=α(n)+δ, if W≧dW
• α(n+1)=α(n)−δ, if W<dW and R<dR,
• where R=integrated risk index,
• α=weight value,
• α(n+1)=weight value after update,
• α(n)=weight value before update,
• W=acquired data,
• dR=integrated risk index reference value,
• dW=information data reference value, and
• δ=α(n)/R.