Universal RF wireless sensor interface

• US 8,514,072 B2
• Filed: 11/13/2006
• Issued: 08/20/2013
• Est. Priority Date: 11/16/2005
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Crouse, Kent E., Keith, William L., Brown, Andrew C.
• Primary Examiner(s): Wong, Albert
• Assistant Examiner(s): MEHRAVARI, PETER CYRUS
• Application Number:
  US12/093,335
• Publication Number:
  US 20080266050A1
• Time in Patent Office: 2,472 Days
• Field of Search: 340/3.7, 340/3.1, 340/539.1, 340/539.22, 700/276, 700/19, 315/294, 315/152
• US Class Current: 340/539.22
• CPC Class Codes: G08C 17/02 using a radio link

Abstract

A RF wireless sensor interface (20) interfaces one or more of a variety of sensors (12, 13) to a RF wireless network (11). A power converter (30) of the interface (20) converts a primary power (P_PRM) into a DC power (P_DC) that is supplied to the sensor(s) (12, 13). A microcontroller (60) of the interface (20) receives sensor detection information (SDI) from the sensor(s) (12, 13) in response to the sensor(s) (12, 13) receiving the DC power (P_DC) from the power converter (30). A RF transmitter/transceiver (50) of the interface (20) executes a sensor detection information RF transmission (SDI_RF) and/or a sensor control signal RF transmission (SCS_RF) to the RF wireless network (11) in response to the microcontroller (60) receiving the sensor detection information (SDI). The power converter (30), the microcontroller (60) and the RF transmitter/transceiver (50) are located within a modular housing (80).

Claims

1. An RF wireless sensor interface configured to interface with a plurality of sensors comprising a variety of sensor types, to an RF wireless network, the RF wireless sensor interface comprising:

a power converter configured to convert primary power (P_PRM) into DC power and to supply the DC power to the plurality of sensors;

a first sensor isolation coupler configured to receive analog sensor detection information from a first sensor of the plurality of sensors comprising a first sensor type, the first sensor configured to convey sensor detection information to an analog-to-digital converter;

a second sensor isolation coupler configured to receive digital sensor detection information from a second sensor of the plurality of sensors comprising a second sensor type;

a microcontroller configured to receive the analog sensor detection information from the first sensor isolation coupler via an analog-to-digital converter in response to the first sensor receiving the DC power from the power converter, and to receive the digital sensor detection information from the second sensor isolation coupler in response to the second sensor receiving the DC power from the power converter;

an RF transceiver configured to perform a sensor detection information RF transmission (SDI_RF) for providing sensor detection information corresponding to the analog sensor detection information or the digital sensor detection information in accordance with a RF wireless network protocol, and a sensor control signal RF transmission (SCS_RF) for providing a sensor control signal provided by the microcontroller processing the analog sensor detection information or the digital sensor detection information in accordance with a network application to the RF wireless network, in an RF transmission mode; and

a modular housing, wherein the power converter, the microcontroller, the first sensor isolation coupler, the second sensor isolation coupler, and the RF transceiver are located within the modular housing to facilitate an operable coupling of the variety of sensors to the RF wireless sensor interface,

wherein the microprocessor is further configured to provide an interface control signal relay (ICS_RL) to an interface controlled device by processing the analog sensor detection information or the digital sensor detection information in accordance with a relay application in a relay mode.

2. The RF wireless sensor interface of claim 1, wherein the microcontroller is further configured to provide the interface control signal relay (ICS_RL) to the interface controlled device in response to the microcontroller receiving the analog and digital sensor detection information.

3. The RF wireless sensor interface of claim 1, wherein the microcontroller is further configured to provide the interface control signal relay (ICS_RL) to the interface controlled device in response the RF transceiver receiving a device control information RF transmission (DCI_RF) from the RF wireless network.

4. The RF wireless sensor interface of claim 1, wherein the microcontroller includes a network stack configured to facilitate control by the microcontroller of the sensor detection information RF transmission (SDI_RF) to the RF wireless network by the RF transceiver in accordance with the RF wireless network protocol associated with the RF wireless network and the sensor control signal RF transmission (SCS_RF) to the RF wireless network by the RF transceiver in accordance with the application associated with the RF wireless network.

5. The RF wireless sensor interface of claim 1, wherein the microcontroller includes an application manager configured to generate at least one of the sensor control signal as a function of the network application of the RF wireless network and the interface control signal relay (ICS_RL) as a function of the relay application of the interface controlled device.

6. The RF wireless sensor interface of claim 1, wherein the primary power (P_PRM) is a mains AC power.

7. The RF wireless sensor interface of claim 1, wherein the RF wireless network is a wireless lighting control network.

8. The RF wireless sensor interface of claim 1, wherein the RF wireless network is a wireless building automation network.

9. The RF wireless sensor interface of claim 1, wherein the first sensor comprises a daylight analog sensor, and the second sensor comprises an occupancy digital sensor.

10. An RF wireless sensing system, comprising:

a plurality of sensors comprising a variety of sensor types; and

an RF wireless sensor interface comprising;

a power converter configured to convert a primary power (P_PRM) into DC power (P_DC) and to supply the DC power (P_DC) to the plurality of sensors;

a first sensor isolation coupler configured to receive analog sensor detection information (SDI_A) from a first sensor of the plurality of sensors;

a second sensor isolation coupler configured to receive digital sensor detection information (SDI_D) from a second sensor of the plurality of sensors;

a microcontroller configured to receive the analog sensor detection information from the first sensor isolation coupler via an analog-to-digital converter in response to the first sensor receiving the DC power from the power converter, and to receive the digital sensor detection information from the second sensor isolation coupler in response to the second sensor receiving the DC power from the power converter;

an RF transceiver configured to perform a sensor detection information RF transmission for providing sensor detection information corresponding to the analog sensor detection information or the digital sensor detection information in accordance with a RF wireless network protocol, and a sensor control signal RF transmission for providing a sensor control signal provided by the microcontroller processing the analog sensor detection information or the digital sensor detection information in accordance with a network application to the RF wireless network, in an RF transmission mode; and

a modular housing containing the power converter, the microcontroller, the first sensor isolation coupler, the second sensor isolation coupler, and the RF transceiver to facilitate an operable coupling of the plurality of sensors to the RF wireless sensor interface,

wherein the microprocessor is further configured to provide an interface control signal relay to an interface controlled device by processing the analog sensor detection information or the digital sensor detection information in accordance with a relay application in a relay mode.

11. The RF wireless sensing system of claim 10, wherein the microcontroller is further configured to provide the interface control signal relay to the interface controlled device in response to the microcontroller receiving at least one of the analog sensor detection information or the digital sensor detection information.

12. The RF wireless sensing system of claim 10, wherein the microcontroller is further configured to provide the interface control signal relay to the interface controlled device in response the RF transceiver receiving a device control information RF transmission from the RF wireless network.

13. The RF wireless sensing system of claim 10, wherein the microcontroller includes a network stack configured to facilitate control by the microcontroller of the sensor detection information RF transmission to the RF wireless network by the RF transceiver in accordance with the RF wireless network protocol associated with the RF wireless network and the sensor control signal RF transmission to the RF wireless network by the RF transceiver in accordance with the application associated with the RF wireless network.

14. The RF wireless sensing system of claim 10, wherein the microcontroller includes an application manager configured to generate at least one of the sensor control signal as a function of the network application of the RF wireless network and the interface control signal relay as a function of the relay application of the interface controlled device.

15. The RF wireless sensing system of claim 10, wherein the primary power is a mains AC power.

16. The RF wireless sensing system of claim 10, wherein the RF wireless network is a wireless lighting control network.

17. The RF wireless sensing system of claim 10, wherein the RF wireless network is a wireless building automation network.

18. The RF wireless sensing system of claim 10, wherein the first sensor comprises a daylight analog sensor, and the second sensor comprises an occupancy digital sensor.

19. A radio frequency (RF) sensor interface, comprising:

a power converter configured to convert primary power into DC power, and to supply the DC power to an analog sensor and a digital sensor in communication with the RF sensor interface;

a first sensor isolation coupler configured to receive analog sensor detection information from the analog sensor;

a second sensor isolation coupler configured to receive digital sensor detection information from the digital sensor;

a microcontroller configured to receive the analog sensor detection information from the first sensor isolation coupler via an analog-to-digital convertor and the digital sensor detection information from the second sensor isolation coupler in response to the analog sensor and the digital sensor receiving the DC power from the power converter, respectively, to process the analog and digital sensor detection information to provide a sensor control signal in accordance with a network application, and to process the analog and digital sensor detection information to provide an interface control signal relay in accordance with a relay application; and

an RF transceiver configured to transmit the sensor control signal provided by the microcontroller to an RF wireless network as a sensor control signal RF transmission, and to transmit one of the analog sensor detection information and the digital sensor detection information to the RF wireless network as a sensor detection information RF transmission in accordance with an RF wireless network protocol,

wherein the microcontroller is further configured to output the interface control signal relay to an interface controlled device, bypassing the RF transceiver, in accordance with the relay application.

20. The RF sensor interface of claim 19, wherein the RF transceiver is further configured to receive device control information from the RF wireless network, and the microprocessor is further configured to process the device control information to provide an interface control signal relay in accordance with the relay application.