Self-identifying control switch

• US 9,619,680 B2
• Filed: 12/29/2014
• Issued: 04/11/2017
• Est. Priority Date: 12/29/2014
• Status: Active Grant

• Current Assignee: Eaton Intelligent Power Limited (Eaton Corporation PLC.)
• Original Assignee: Eaton Corp. (Wisconsin) (Eaton Corporation PLC.)
• Inventors: Blackwood, Andrew James
• Primary Examiner(s): Ghulamali, Qutbuddin
• Application Number:
  US14/584,118
• Publication Number:
  US 20160188928A1
• Time in Patent Office: 834 Days
• Field of Search: 340 101, 340 105, 340 1051, 235375
• CPC Class Codes: G06K 7/10316 using at least one antenna particularly designed for interrogating the wireless record carriers antennas in general H01Q1/22
• CPC Class Codes: G06K 7/10366 the interrogation device being adapted for miscellaneous applications
• CPC Class Codes: H01H 2221/016 Lever; Rocker
• CPC Class Codes: H01H 2231/026 Car
• CPC Class Codes: H01H 23/12 Movable parts; Contacts mounted thereon
• CPC Class Codes: H01H 23/28 with three operating positions
• CPC Class Codes: H01H 2300/032 using RFID technology in switching devices
• CPC Class Codes: H01H 9/168 making use of an electromagnetic wave communication
• CPC Class Codes: H01H 9/18 Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/14 Protecting elements, switches, relays or circuit breakers

Abstract

A vehicle communication system includes a switch module having a plurality of control switches, each of the control switches including a rocker button actuatable between an off position and an activated position, and an RFID tag secured to the rocker button, the RFID tag including thereon a unique identifier tied to a function of the control switch. The vehicle communication system also includes an RFID reader that receives switch messages from RFID tags whose respective rocker button is in an activated position, each switch message including the unique identifier for its respective RFID tag. The vehicle communication system also includes a vehicle communications link that is connected to the RFID reader to receive switch messages therefrom, the vehicle communications link providing the switch messages to a vehicle controller for purposes of controlling vehicle outputs associated with the switch messages.

Claims

1. A vehicle communication system comprising:

a switch module including a plurality of control switches, each of the plurality of control switches comprising;

a rocker button moveable between an off position and an activated position;

a radio frequency identification (RFID) tag secured to the rocker button, the RFID tag including thereon a unique identifier tied to a function of the control switch;

a switch contact coupled to the RFID tag and to the rocker button, such that the switch contact moves with the rocker button when actuated between the off position and the activated position; and

an antenna selectively in operable communication with the RFID tag based on a position of the switch contact;

an RFID reader configured to receive switch messages from RFID tags whose respective rocker button is in an activated position, each switch message including the unique identifier for its respective RFID tag; and

a vehicle communications link connected to the RFID reader to receive switch messages therefrom, the vehicle communications link providing the switch messages to a vehicle controller for purposes of controlling vehicle outputs associated with the switch messages;

wherein the switch contact forms a communications path between the RFID tag and the antenna when in a closed position, the switch contact being moved to the closed position responsive to actuation of the rocker button to the activated position; and

wherein the antenna generates a switch message for transmission to the RFID reader when the communications path is formed between the RFID tag and the antenna.

2. The vehicle communication system of claim 1 wherein the rocker switch is actuatable between the off position, a first activated position, and a second activated position;

and

wherein the RFID tag comprises a first RFID tag and a second RFID tag, the switch contact comprises a first switch contact coupled to the first RFID tag and a second switch contact coupled to the second RFID tag, and the antenna comprises a first antenna and a second antenna, with the first RFID tag having an identifier tied to a function of the control switch in the first activated position and the second RFID tag having an identifier tied to a function of the control switch in the second activated position.

3. The vehicle communication system of claim 2 wherein the first switch contact forms a communications path between the first RFID tag and the first antenna when moved to its closed position, responsive to actuation of the rocker button to the first activated position;

and

wherein the second switch contact forms a communications path between the second RFID tag and the second antenna when moved to its closed position, responsive to actuation of the rocker button to the second activated position.

4. The vehicle communication system of claim 1 wherein the RFID tag is secured to an underside of the rocker button.

5. The vehicle communication system of claim 1 wherein the vehicle communications link transmits a serial message to the vehicle controller that includes all switch messages received from the plurality of control switches.

6. The vehicle communication system of claim 1 wherein the RFID reader transmits interrogator signals to the RFID tag in each of the plurality of control switches, with the RFID tags generating the switch messages responsive to the interrogator signals.

7. The vehicle communication system of claim 6 wherein the RFID reader further comprises an amplifier operable to selectively boost a strength of the interrogator signals transmitted by the RFID reader, with the boosted interrogator signals providing charging to the plurality of RFID tags such that the RFID tags and the RFID reader form an Active Reader-Passive Tag (ARPT) system.

8. The vehicle communication system of claim 1 wherein the RFID transmits the interrogator signals in a periodic fashion to check for the presence of RFID tags.

9. The vehicle communication system of claim 1 wherein the plurality of switches are interchangable within the switch module without affecting a functionality of the switches or communication thereof with the RFID reader.

10. A vehicle control switch comprising:

a rocker button actuatable between an off position and one or more activated positions;

one or more radio frequency identification (RFID) tag secured to an underside of the rocker button, with an RFID tag being provided for each of the one or more activated positions of the rocker button, and wherein each of the one or more RFID tags includes thereon a unique address tied to a function of the control switch in its respective activated position;

a switch contact coupled to each of the one or more RFID tags and to the rocker button, such that the switch contact moves with the rocker button when actuated between the off position and the one or more activated positions; and

one or more antennas selectively in operable communication with the one or more RFID tags based on a position of the switch contact associated with each respective RFID tag;

wherein a communications path between an RFID tag and an antenna is formed by a respective switch contact when the rocker button is in one of the one or more activated positions, thereby causing the antenna to transmit a switch signal to an RFID reader remote from the vehicle control switch, the switch signal including therein the unique address of the RFID tag.

11. The vehicle control switch of claim 10 wherein the one or more RFID tags comprises a first RFID tag and a second RFID tag, the switch contact comprises a first switch contact coupled to the first RFID tag and a second switch contact coupled to the second RFID tag, and the one or more antennas comprises a first antenna and a second antenna.

12. The vehicle control switch of claim 11 wherein the one or more activated positions of the rocker button comprises a first activated position and a second activated position, with:

a communications path being formed between the first RFID tag and the first antenna by the first switch contact when the rocker button is in the first activated position, thereby causing the first antenna to transmit a switch signal to the RFID reader, the switch signal including therein the unique address of the first RFID tag tied to a function of the vehicle control switch in the first activated position; and

a communications path being formed between the second RFID tag and the second antenna by the second switch contact when the rocker button is in the second activated position, thereby causing the second antenna to transmit a switch signal to the RFID reader, the switch signal including therein the unique address of the second RFID tag tied to a function of the vehicle control switch in the second activated position.

13. The vehicle control switch of claim 10 wherein each of the one or more RFID tags comprises a passive tag that transmits, via its associated antenna, a switch signal including therein its unique address only in response to an interrogation signal transmitted by the remote RFID reader.

14. A vehicle communication system comprising:

a plurality of control switches selectively operable to control vehicle functions or loads in a desired manner, each of the plurality of control switches comprising;

a rocker button actuatable between an off position and one or more activated positions;

one or more radio frequency identification (RFID) tags secured to an underside of the rocker button, each RFID tag having stored thereon a unique address indicative of a function of the control switch; and

one or more antennas operable with the one or more RFID tags to transmit switch messages including the address of the RFID tag indicative of a function of the control switch;

wherein actuation of the rocker button between the off position and the one or more activated positions selectively connects and disconnects the one or more antennas from respective ones of the one or more RFID tags; and

an RFID reader configured to;

transmit interrogator signals to each of the RFID tags in the plurality of control switches; and

responsive to the interrogator signals, receive switch messages from each RFID tag connected to its respective antenna based on actuation of the respective rocker button to an activated position, each switch message including the unique address for its respective RFID tag.

15. The vehicle communication system of claim 14 further comprising a vehicle communications link connected to the RFID reader to receive switch messages therefrom, the vehicle communications link providing the switch messages in serial to a vehicle controller for purposes of controlling vehicle outputs associated with the switch messages.

16. The vehicle communication system of claim 14 wherein each of the plurality of control switches further comprises a switch contact coupled to each of the one or more RFID tags, wherein the switch contact moves with the rocker button when actuated between the off position and the one or more activated positions so as to selectively connect and disconnect a respective antenna with a respective RFID tag.

17. The vehicle communication system of claim 14 wherein each of the one or more RFID tags comprises a passive tag that transmits, via its associated antenna, a switch signal including therein its unique address only in response to an interrogation signal transmitted by the RFID reader.

18. The vehicle communication system of claim 17 wherein the RFID reader further comprises an amplifier operable to selectively boost a strength of the interrogator signals transmitted by the RFID reader, with the boosted interrogator signals providing charging to the one or more RFID tags in each control switch.