Interruption free navigator
First Claim
1. An interruption free navigator, comprising:
- a main IMU (Inertial Measurement Unit) based interruption-free positioning module comprising an IMU sensing motion measurements of a user and producing interruption-free positioning data of said user and a velocity producer producing relative velocity data of said user, wherein said velocity producer includes a device selected from a group consisting of radio frequency radar, sonar, laser radar, odometer, encoder, velocimeter, step counter, and pedometer; and
a positioning assistant providing interruptible positioning data for said main IMU based interruption-free positioning module to achieve an improved interruption-free positioning data of said user.
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Abstract
An interruption free navigator includes an inertial measurement unit, a north finder, a velocity producer, a positioning assistant, a navigation processor, an altitude measurement, an object detection system, a wireless communication device, and a display device and map database. Output signals of the inertial measurement unit, the velocity producer, the positioning assistant, the altitude measurement, the object detection system, and the north finder are processed to obtain highly accurate position measurements of the person. The user'"'"'s position information can be exchanged with other users through the wireless communication device, and the location and surrounding information can be displayed on the display device by accessing a map database with the person position information.
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Citations
79 Claims
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1. An interruption free navigator, comprising:
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a main IMU (Inertial Measurement Unit) based interruption-free positioning module comprising an IMU sensing motion measurements of a user and producing interruption-free positioning data of said user and a velocity producer producing relative velocity data of said user, wherein said velocity producer includes a device selected from a group consisting of radio frequency radar, sonar, laser radar, odometer, encoder, velocimeter, step counter, and pedometer; and
a positioning assistant providing interruptible positioning data for said main IMU based interruption-free positioning module to achieve an improved interruption-free positioning data of said user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. An interruption-free hand-held positioning method, comprising the steps of:
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(a) sensing motion measurements of said user by a main IMU (Inertial Measurement Unit) to produce interruption-free positioning data of said user and producing relative velocity data of said user by a velocity producer which includes a device selected from a group consisting of radio frequency radar, sonar, laser radar, odometer, encoder, velocimeter, step counter, and pedometer;
(b) providing interruptible positioning data to assist said main IMU based interruption-free positioning module by a positioning assistant, and (c) producing interruption-free positioning data of said user using motion measurements, and improving said interruption-free positioning data of said user when said interruptible positioning data is available. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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- 71. An interruption free navigator, comprising an IMU Analog Sensor Daughter Board in X Axis, an IMU Analog Sensor Daughter Board in Y Axis, a Main Analog Sensor Board, and a microcontroller based control circuit board, wherein said IMU Analog Sensor Daughter Board in X Axis and said IMU Analog Sensor Daughter Board in Y Axis are inserted on said Main Analog Sensor Board, wherein said Main Analog Sensor Board and said microcontroller based control circuit board are connected by connectors in a parallel manner.
Specification