초록 ▼

An apparatus and method for tracking a vehicle is provided. The vehicle tracking system may include an inertial measurement unit for providing inertial vehicle state characteristics of the vehicle. The inertial measurement unit may include at least one gyro and at least one accelerometer. The vehicl

An apparatus and method for tracking a vehicle is provided. The vehicle tracking system may include an inertial measurement unit for providing inertial vehicle state characteristics of the vehicle. The inertial measurement unit may include at least one gyro and at least one accelerometer. The vehicle tracking system additionally includes an inertial converter for generating vehicle state information from the inertial vehicle state characteristics. Clinometers are utilized within the vehicle tracking system to initialize the gyros and may additionally provide acceleration information. The vehicle tracking system may additionally include one or more redundant sensors for providing redundant state information. The redundant sensors can include an odometer/tachometer, Global Positioning System receiver, tag receiver, and a map matching system. A Kalman filter may be utilized to reduce error within the vehicle tracking system and improve the accuracy thereof.

대표청구항 ▼

[ We claim:] [5.] An apparatus to obtain vehicle state information, comprising:a. an inertial measurement unit including a plurality of inertial sensors to provide a plurality of vehicle state characteristics;b. an inertial converter coupled with said inertial measurement unit to derive inertial veh

[ We claim:] [5.] An apparatus to obtain vehicle state information, comprising:a. an inertial measurement unit including a plurality of inertial sensors to provide a plurality of vehicle state characteristics;b. an inertial converter coupled with said inertial measurement unit to derive inertial vehicle state information from the vehicle state characteristics;c. a filter coupled with said inertial converter to remove error from the inertial vehicle state information and outputting corrected vehicle state information; andd. at least one clinometer coupled with said inertial converter to initialize the vehicle state characteristics,wherein said at least one clinometer is coupled with said filter to apply dynamic vehicle state information thereto,wherein said inertial sensors include at least one gyro and at least one accelerometer,wherein said at least one clinometer initializes a pitch gyro and a roll gyro when the acceleration of the vehicle is zero,wherein said at least one clinometer is coupled with said filter to apply dynamic vehicle state information thereto,a plurality of redundant sensors coupled with said filter to provide redundant vehicle state information, andwherein said redundant sensors include a wheel rotation sensor to provide velocity and distance information, a global positioning system to provide position information, a tag receiver and a plurality of physical tags to provide position and velocity information, and a map matching database and a map matching module to provide position and attitude information.