Navigation apparatus and navigation information calculation method
Navigation apparatus and navigation information calculation method
 CN 101,135,567 B
 Filed: 08/31/2007
 Issued: 11/26/2014
 Est. Priority Date: 08/31/2006
 Status: Active Grant
First Claim
1. a navigator, comprising:
 Travel direction acceleration calculation device, for based on according to from satellite reception to the speed of the mobile object that calculates of information, calculate the acceleration of described mobile object in the direction of motion of described mobile object;
Transverse acceleration calculation element, for based on according to from described satellite reception to speed and the direction of the described mobile object that calculates of information, the transverse acceleration of the motion vertical of calculated direction and described mobile object;
Acceleration transducer, for observing acceleration of motion and the acceleration of gravity of described mobile object;
Difference in height calculation element, for the atmospheric pressure value based on providing from barometric pressure sensor, calculates the difference in height of road;
Degree of tilt is calculated device, for based on described difference in height and the operating range corresponding with the speed of described mobile object, calculates the angle of inclination of described road in described direction of motion;
AndAngle of assembling calculation element, for comprise the acceleration in described direction of motion, described transverse acceleration, value that described acceleration transducer observes and the multidimensional function formula at described angle of inclination by use, calculate the angle of assembling of described acceleration transducer with respect to described mobile object, wherein, the value observing described in comprises described acceleration of motion and described acceleration of gravity.
Chinese PRB Reexamination
Abstract
A navigation apparatus 1 includes: a section 31 that calculates a mobile object'"'"'s acceleration in the direction of the motion, based on the mobile object'"'"'s speed calculated from information received from a satellite; a section 32 that calculates lateral acceleration whose direction is perpendicular to the mobile object'"'"'s motion, based on the mobile object'"'"'s speed and direction calculated from information received from the satellite; an acceleration sensor 5 that observes motion acceleration of the mobile object and gravity acceleration; a section 22 that calculates an altitude difference of road based on an atmospheric pressure value supplied from a barometric sensor; a section 10 that calculates an inclination angle of the road in the direction of the motion, based on the altitude difference and a travel distance corresponding to the mobile object'"'"'s speed; and a section 33 that calculates an attachment angle of the acceleration sensor with respect to the mobile object by using a multidimensional function formula.
8 Claims

1. a navigator, comprising:

Travel direction acceleration calculation device, for based on according to from satellite reception to the speed of the mobile object that calculates of information, calculate the acceleration of described mobile object in the direction of motion of described mobile object; Transverse acceleration calculation element, for based on according to from described satellite reception to speed and the direction of the described mobile object that calculates of information, the transverse acceleration of the motion vertical of calculated direction and described mobile object; Acceleration transducer, for observing acceleration of motion and the acceleration of gravity of described mobile object; Difference in height calculation element, for the atmospheric pressure value based on providing from barometric pressure sensor, calculates the difference in height of road; Degree of tilt is calculated device, for based on described difference in height and the operating range corresponding with the speed of described mobile object, calculates the angle of inclination of described road in described direction of motion;
AndAngle of assembling calculation element, for comprise the acceleration in described direction of motion, described transverse acceleration, value that described acceleration transducer observes and the multidimensional function formula at described angle of inclination by use, calculate the angle of assembling of described acceleration transducer with respect to described mobile object, wherein, the value observing described in comprises described acceleration of motion and described acceleration of gravity.


2. navigator according to claim 1, is characterized in that,
Described angle of assembling calculation element calculates zero point offset amount and the described angle of assembling of described acceleration transducer.

3. navigator according to claim 1, is characterized in that,
Angle of assembling described in the double counting in time of described angle of assembling calculation element, then carries out smoothly calculated angle or on average, even so that in the time that described angle of assembling changes in time, also can obtain accurate learning outcome.

4. navigator according to claim 1, is characterized in that,
The zero point offset amount of acceleration transducer described in the double counting in time of described angle of assembling calculation element, then calculated zero point offset amount is carried out level and smooth or average, even so that in the time that described zero point offset amount changes in time, also can obtain accurate learning outcome.

5. a navigation information calculation method, comprising:

Travel direction acceleration calculation step, for based on according to from satellite reception to the speed of the mobile object that calculates of information, calculate the acceleration of described mobile object in the direction of motion of described mobile object; Transverse acceleration calculation procedure, for based on according to from described satellite reception to speed and the direction of the described mobile object that calculates of information, the transverse acceleration of the motion vertical of calculated direction and described mobile object; Observation procedure, for observing acceleration of motion and the acceleration of gravity of described mobile object by use acceleration transducer; Difference in height calculation procedure, for the atmospheric pressure value based on providing from barometric pressure sensor, calculates the difference in height of road; Degree of tilt is calculated step, for the described difference in height and the operating range corresponding with the speed of described mobile object that calculate based on described difference in height calculation procedure, calculates the angle of inclination of described road in described direction of motion;
AndAngle of assembling calculation procedure, for comprise the acceleration in described direction of motion, described transverse acceleration, value that described acceleration transducer observes and the multidimensional function formula at described angle of inclination by use, calculate the angle of assembling of described acceleration transducer with respect to described mobile object, wherein, the value observing described in comprises described acceleration of motion and described acceleration of gravity.


6. navigation information calculation method according to claim 5, is characterized in that,
Described angle of assembling calculation procedure is calculated zero point offset amount and the described angle of assembling of described acceleration transducer.

7. navigation information calculation method according to claim 5, is characterized in that,
Angle of assembling described in the double counting in time of described angle of assembling calculation procedure, then carries out smoothly calculated angle or on average, even so that in the time that described angle of assembling changes in time, also can obtain accurate learning outcome.

8. navigation information calculation method according to claim 5, is characterized in that,
The zero point offset amount of acceleration transducer described in the double counting in time of described angle of assembling calculation procedure, then calculated zero point offset amount is carried out level and smooth or average, even so that in the time that described zero point offset amount changes in time, also can obtain accurate learning outcome.
Specification(s)