Autonomous velocity estimation and navigation
First Claim
1. A spatial velocity meter comprising:
- an inertial measurement unit adapted to register acceleration parameters and angular velocity parameters in three dimensions; and
a velocity processor adapted to receive the acceleration parameters, receive the angular velocity parameters, and based on at least these parameters, generate a velocity vector expressing a velocity in relation to the earth, wherein the velocity meter comprises a direction-sensing module which is adapted to register a natural reference signal, and the velocity processor is adapted to receive the natural reference signal and determine the velocity vector on further basis of the natural reference signal.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to measurement of a spatial velocity vector (vx, vy, vz), i.a. in order to make determination of a geographical position possible. A proposed spatial velocity meter (200) includes an inertial measurement unit (210), a direction-sensing module (220) and a velocity processor (230). The inertial measurement unit (210) registers acceleration parameters (a) and angular velocity parameters (ω) in three dimensions. The direction-sensing module (220) registers a natural reference signal (R). The velocity processor (230) receives the acceleration parameters (a), the angular velocity parameters (co) and the natural reference signal (R), and based thereon, generates the spatial velocity vector (vx, vy, vz).
14 Citations
21 Claims
-
1. A spatial velocity meter comprising:
-
an inertial measurement unit adapted to register acceleration parameters and angular velocity parameters in three dimensions; and
a velocity processor adapted to receive the acceleration parameters, receive the angular velocity parameters, and based on at least these parameters, generate a velocity vector expressing a velocity in relation to the earth, wherein the velocity meter comprises a direction-sensing module which is adapted to register a natural reference signal, and the velocity processor is adapted to receive the natural reference signal and determine the velocity vector on further basis of the natural reference signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for spatial velocity estimation comprising registering acceleration parameters and angular velocity parameters in three dimensions, the method comprising:
-
registering a natural reference signal; and
determining a velocity vector on basis of the acceleration parameters, the angular velocity parameters and the natural reference signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification