Contactless communication for battery information

• US 10,182,116 B2
• Filed: 12/15/2016
• Issued: 01/15/2019
• Est. Priority Date: 05/10/2016
• Status: Active Grant

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Sankaran, Swaminathan, Haroun, Baher, Ramaswamy, Srinath M.
• Primary Examiner(s): WEST, LEWIS G
• Application Number:
  US15/380,487
• Publication Number:
  US 20170331897A1
• Time in Patent Office: 761 Days
• CPC Class Codes: H04B 5/24 Inductive coupling
• CPC Class Codes: H04B 5/72 for local intradevice communication
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

One example includes a system is comprised of an elongated transmission line and as module. The elongated transmission line includes an arrangement of transmission line couplers distributed along its length at spaced apart locations. The module has an outer surface and is comprised of a transmitter, and a transmitter coupler. The transmitter transmits a radio frequency signal. The transmitter coupler is on the outer surface of the module, electrically connects with the transmitter, and aligns to couple with a respective one of the transmission line couplers to provide a contactless communication link between the transmitter and the elongated transmission line.

Claims

1. A system, comprising:

an elongated transmission line that includes;

an arrangement of transmission line couplers distributed along its length at spaced apart locations; and

a module having an outer surface, the module comprising;

a transmitter to transmit a radio frequency signal; and

a transmitter coupler on the outer surface of the module, the transmitter coupler electrically connected with the transmitter and aligned to couple with a respective one of the transmission line couplers to provide a contactless communication link between the transmitter and the elongated transmission line;

the elongated transmission line further including;

an elongated sheet of a flexible or semi-flexible substrate on a surface of the module;

electrical traces on the elongated sheet to provide the transmission line couplers and electrical connections between adjacent pairs of the transmission line couplers; and

a termination coupler adjacent an end of the elongated sheet to couple the elongated transmission line to another termination coupler of another transmission line.

2. The system according to claim 1, wherein the module further comprises:

a battery; and

a detector to detect information associated with the battery;

the transmitter being arranged to receive power from the battery and to transmit the information via the elongated transmission line.

3. The system according to claim 2, wherein the information includes diagnostic information including at least one of charge, pressure, temperature and identity of the battery.

4. The system according to claim 1, wherein one of the transmission line couplers is coaxially and superimposedly aligned with the transmitter coupler residing on a surface of the module.

5. The system according to claim 1, further comprising a host module, coupled to the elongated transmission line via the other transmission line, to communicate with the transmitter via the transmission line.

6. The system according to claim 1, further comprising a transceiver, including the transmitter, to enable bidirectional communication over the elongated transmission line between the transceiver and at least one other communications endpoint.

7. The system according to claim 1, wherein alignment and proximity between one of the transmission line couplers and the transmitter coupler is sufficient to establish near-field contactless communications between the elongated transmission line and the transmitter coupler.

8. The system according to claim 1, further comprising:

a plurality of modules, each of the modules comprising;

a respective battery;

a respective transmitter to receive electrical power from the battery and to transmit a radio frequency signal that includes battery information; and

a respective transmitter coupler on an outer surface of the module, the transmitter coupler electrically connected with the transmitter and aligned to contactlessly couple with a respective one of the transmission line couplers to provide a contactless communication link between the respective transmitter and the elongated transmission line.

9. The system according to claim 8, wherein:

each of the plurality of modules further comprises a respective detector to detect information associated with the respective battery thereof; and

the transmitter is arranged to transmit the detected information via the elongated transmission line, the detected information including an identity of the battery and/or an operating parameter of the battery.

10. The system according to claim 8, wherein the elongated transmission line further comprises:

an elongated sheet of a flexible or semi-flexible substrate on a surface of the module; and

electrical traces on the elongated sheet in an arrangement to provide the transmission line couplers and electrical connections between adjacent pairs of the transmission line couplers.

11. A method of communicating battery information, the method comprising:

positioning an elongated transmission line along a surface of a module to align a given transmission line coupler with a transmitter coupler on the surface of the module, the transmission line including an arrangement of transmission line couplers, including the given transmission line coupler, distributed along its length at spaced apart locations, the module including a battery and a transmitter, the transmitter being electrically connected to the transmitter coupler;

establishing a communication link between the transmitter and the elongated transmission line via a contactless link formed by the alignment of the transmission line coupler and the transmitter coupler;

transmitting information associated with the battery from the transmitter via the established communications link;

aligning a termination coupler of the elongated transmission line with a termination coupler of another elongated transmission line to contactlessly couple the elongated transmission lines;

coupling a host module to the other elongated transmission line; and

transmitting information associated with the battery from the transmitter to the host module via a communications path that includes the elongated transmission lines.

12. The method according to claim 11, further comprising:

detecting, via at least one sensor, information associated with the battery; and

transmitting information, including the detected information, from the transmitter via the elongated transmission line.

13. The method according to claim 12, wherein the transmitted information includes at least one of charge, pressure, identity and temperature of the battery.

14. The method of communicating battery information according to claim 11, wherein the transmitter is part of a transceiver, the method further comprising:

receiving, at a receiver of the transceiver, information from the host module via the communication path.