Wireless data transfer in a deterministic rotating system

Patent metadata

Field	Value
Publication number	US-2016235387-A1
Application number	US-201514623936-A
Country	US
Kind code	A1
Filing date	Feb 17, 2015
Priority date	Feb 17, 2015
Publication date	Aug 18, 2016
Grant date	—

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 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 on the stationary assembly; wherein the first and second transceivers enable wireless communication between the rotating assembly and the stationary assembly.

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 1 , wherein the wireless communication comprises spatially multiplexed wireless communication.

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

6 . 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.

7 . The system of claim 6 wherein the second transceiver is mounted on the outer cylinder.

8 . The system of claim 6 , where the semi-echoic corridor further comprises a cover.

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

10 . The system of claim 9 , wherein the metal is aluminum.

11 . 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 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 on the stationary assembly; wherein the first and second transceivers enable wireless communication between the rotating assembly and the stationary assembly.

12 . The system of claim 11 , further comprising:
a controller communicatively coupled to the rotating assembly and to the stationary assembly via a network.

13 . The system of claim 12 , wherein the controller provides axial position data to the first transceiver and/or the second transceiver.

14 . The system of claim 11 , wherein the wireless communication comprises spatially multiplexed wireless communication.

15 . The system of claim 11 , wherein interior walls of the semi-echoic corridor comprise an electromagnetically reflective material.

16 . A method, comprising:
rotating a rotating assembly of a 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 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.

17 . The method of claim 16 , 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.

18 . The method of claim 17 , wherein the beam searching and the beam tracking are performed for each degree of rotation of the rotating assembly.

19 . The method of claim 16 , further comprising:
retrieving the beamforming parameters for each axial position from the memory for subsequent rotations 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:
rotate a rotating assembly of a 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; 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 retrieve the beamforming parameters for each axial position from the memory for subsequent rotations of the rotating assembly.

Assignees

• Gen Electric

Inventors

• Murray Donald

Classifications

• H01F38/18

  Rotary transformers · CPC title

• A61B6/547 Primary

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

• A61B6/56

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

• A61B6/032

  Transmission computed tomography [CT] · CPC title

• H04B1/40

  Circuits · CPC title