Wireless data transfer in a deterministic rotating system

Patent metadata

Field	Value
Publication number	US-9968328-B2
Application number	US-201514623936-A
Country	US
Kind code	B2
Filing date	Feb 17, 2015
Priority date	Feb 17, 2015
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

A system is described herein. The system includes a first transceiver mounted on a rotating assembly arranged on an axis, and a semi-echoic corridor mounted on a stationary assembly which is arranged proximate to the rotating assembly and arranged on the axis, wherein the semi-echoic corridor comprises a slot configured to accommodate the first transceiver of the rotating assembly. The system also includes a second transceiver arranged on the stationary assembly, wherein the first and second transceivers enable wireless communication between the rotating assembly and the stationary assembly.

First claim

What is claimed is:

1. A system, comprising:
a first transceiver mounted on a rotating assembly arranged on an axis;
a semi-echoic corridor mounted in a stationary position on a stationary assembly which is arranged proximate to the rotating assembly and arranged on the axis, wherein the semi-echoic corridor comprises a slot configured to accommodate the first transceiver of the rotating assembly; and
a second transceiver arranged in a stationary position within the semi-echoic corridor;
wherein the first and second transceivers enable wireless communication between the rotating assembly and the stationary assembly, and the first transceiver comprises a transmitter and the second transceiver comprises a receiver.

2. The system of claim 1 , further comprising:
a controller communicatively coupled to the rotating assembly and to the stationary assembly via a network.

3. The system of claim 2 , wherein the controller provides axial position data to the first transceiver and/or the second transceiver.

4. The system of claim 3 , wherein the controller is configured to:
during calibration of the system:
rotate a rotating assembly of the system through axial positions of a complete rotation beginning at a zero degree position, wherein the rotating assembly comprises a first transceiver;
perform beam searching between the first transceiver of the rotating assembly and a second transceiver arranged in a stationary assembly of the system at each axial position until communication is established between the first transceiver and the second transceiver at each of the axial positions;
perform beam tracking at each axial position when communication is established between the first and second transceivers at each axial position to optimize data transmission and generate beamforming parameters at each axial position; and
store, for each of the first transceiver and the second transceiver, axial position information and corresponding beamforming parameters for each axial position in a memory; and

subsequent to calibration of the system:
retrieve the stored beamforming parameters for each axial position from the memory and utilize the stored beamforming parameters for subsequent rotations of the rotating assembly during scans to acquire image data, wherein utilizing the stored beamforming parameters optimizes data transmission without having to perform beam searching and beam tracking.

5. The system of claim 1 , wherein the wireless communication comprises spatially multiplexed wireless communication.

6. The system of claim 1 , wherein interior walls of the semi-echoic corridor comprise an electromagnetically reflective material.

7. The system of claim 1 , wherein the semi-echoic corridor comprises:
an inner cylinder; and
an outer cylinder;
and wherein the slot is arranged between the inner cylinder and the outer cylinder.

8. The system of claim 7 wherein the second transceiver is mounted on the outer cylinder.

9. The system of claim 7 , where the semi-echoic corridor further comprises a cover.

10. The system of claim 1 , wherein the semi-echoic corridor is formed from metal.

11. The system of claim 1 , wherein the transmitter and the receiver are the only transceivers of the system.

12. An imaging system, comprising:
gantry comprising a rotating assembly and a stationary assembly arranged proximate to each other about a bore along an imaging axis;
a first transceiver mounted on the rotating assembly;
a semi-echoic corridor mounted in a stationary position on the stationary assembly, wherein the semi-echoic corridor comprises a slot configured to accommodate the first transceiver of the rotating assembly; and
a second transceiver arranged in a stationary position within the semi-echoic corridor;
wherein the first and second transceivers enable wireless communication between the rotating assembly and the stationary assembly, and the first transceiver comprises a transmitter and the second transceiver comprises a receiver.

13. The system of claim 12 , further comprising:
a controller communicatively coupled to the rotating assembly and to the stationary assembly via a network.

14. The system of claim 13 , wherein the controller provides axial position data to the first transceiver and/or the second transceiver.

15. The system of claim 12 , wherein the wireless communication comprises spatially multiplexed wireless communication.

16. The system of claim 12 , wherein interior walls of the semi-echoic corridor comprise an electromagnetically reflective material.

17. A method, comprising:
during calibration of an imaging system:
rotating a rotating assembly of the imaging system through axial positions of a complete rotation beginning at a zero degree position, wherein the rotating assembly comprises a first transceiver;
performing beam searching between the first transceiver of the rotating assembly and a second transceiver arranged in a stationary assembly of the imaging system at each axial position until communication is established between the first transceiver and the second transceiver at each of the axial positions;
performing beam tracking at each axial position when communication is established between the first and second transceivers at each axial position to optimize data transmission and generate beamforming parameters at each axial position; and
storing, for each of the first transceiver and the second transceiver, axial position information and corresponding beamforming parameters for each axial position in a memory; and

subsequent to calibration of the imaging system:
retrieving the stored beamforming parameters for each axial position from the memory and utilizing the stored beamforming parameters for subsequent rotations of the rotating assembly during scans to acquire image data, wherein utilizing the stored beamforming parameters optimizes data transmission without having to perform beam searching and beam tracking.

18. The method of claim 17 , wherein rotating the rotating assembly comprises advancing and stopping rotation of the rotating assembly by one degree until the rotating assembly has a returned to the zero degree position.

19. The method of claim 18 , wherein the beam searching and the beam tracking are performed for each degree of rotation of the rotating assembly.

20. A non-transitory computer-readable medium having stored thereon a computer program comprising instructions which when executed by a computer cause the computer to:
during calibration of an imaging system:
rotate a rotating assembly of the imaging system through axial positions of a complete rotation beginning at a zero degree position, wherein the rotating assembly comprises a first transceiver;
perform beam searching between the first transceiver of the rotating assembly and a second transceiver arranged in a stationary assembly of the imaging system at each axial position until communication is established between the first transceiver and the second transceiver at each of the axial positions;
perform beam tracking at each axial position when communication is established between the first and second transceivers at each axial position to optimize data transmission and generate beamforming parameters at each axial position; and
store, for each of the first transceiver and the second transceiver, axial position information and corresponding beamforming parameters for each axial position in a memory; and

subsequent to calibration of the imaging system:
retrieve the stored beamforming parameters

Assignees

• Gen Electric

Inventors

• Murray Donald

Classifications

• A61B6/56

  Details of data transmission or power supply, e.g. use of slip rings · CPC title

• A61B6/547 Primary

  involving tracking of position of the device or parts of the device · CPC title

• H01F38/18

  Rotary transformers · CPC title

• A61B6/032

  Transmission computed tomography [CT] · CPC title