Artificial Passenger 1

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  • Topic: Speech recognition, Speech synthesis, Natural language processing
  • Pages : 35 (11338 words )
  • Download(s) : 557
  • Published : February 21, 2012
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Chapter 1
1. INTRODUCTION
An artificial passenger (AP) is a device that would be used in a motor vehicle to make sure that the driver stays awake. IBM has developed a prototype that holds a conversation with a driver, telling jokes and asking questions intended to determine whether the driver can respond alertly enough. Assuming the IBM approach, an artificial passenger would use a microphone for the driver and a speech generator and the vehicle's audio speakers to converse with the driver. The conversation would be based on a personalized profile of the driver. A camera could be used to evaluate the driver's "facial state" and a voice analyzer to evaluate whether the driver was becoming drowsy. If a driver seemed to display too much fatigue, the artificial passenger might be programmed to open all the windows, sound a buzzer, increase background music volume, or even spray the driver with ice water.

Studies of road safety found that human error was the sole cause in more than half of all accidents .One of the reasons why humans commit so many errors lies in the inherent limitation of human information processing .With the increase in popularity of Telematics services in cars (like navigation, cellular telephone, internet access) there is more information that drivers need to process and more devices that drivers need to control that might contribute to additional driving errors. This topic is devoted to a discussion of these and other aspects of driver safety.

The AP is an artificial intelligence–based companion that will be resident in software and chips embedded in the automobile dashboard. The heart of the system is a conversation planner that holds a profile of you, including details of your interests and profession.

A microphone picks up your answer and breaks it down into separate words with speech-recognition software. A camera built into the dashboard also tracks your lip movements to improve the accuracy of the speech recognition. A voice analyzer then looks for signs of tiredness by checking to see if the answer matches your profile. Slow responses and a lack of intonation are signs of fatigue.

This research suggests that we can make predictions about various aspects of driver performance based on what we glean from the movements of a driver’s eyes and that a system can eventually be developed to capture this data and use it to alert people when their driving has become significantly impaired by fatigue.

The natural dialog car system analyzes a driver’s answer and the contents of the answer together with his voice patterns to determine if he is alert while driving. The system warns the driver or changes the topic of conversation if the system determines that the driver is about to fall asleep. The system may also detect whether a driver is affected by alcohol or drugs.

1.1 Artificial Passenger Overview
The AP is an artificial intelligence–based companion that will be resident in software and chips embedded in the automobile dashboard. The heart of the system is a conversation planner that holds a profile of you, including details of your interests and profession. When activated, the AP uses the profile to cook up provocative questions such “Who was the first person you dated?” via a speech generator and in-car speakers.

A microphone picks up your answer and breaks it down into separate words with speech-recognition software. A camera built into the dashboard also tracks your lip movements to improve the accuracy of the speech recognition. A voice analyzer then looks for signs of tiredness by checking to see if the answer matches your profile. Slow responses and a lack of intonation are signs of fatigue. If you reply quickly and clearly, the system judges you to be alert and tells the conversation planner to continue the line of questioning. If your response is slow or doesn’t make sense, the voice analyzer assumes you are dropping off and acts to get your attention.

The system,...
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