Apparatus for and method of using an intelligent network and RFID signal router

• US 7,656,858 B2
• Filed: 03/03/2006
• Issued: 02/02/2010
• Est. Priority Date: 03/03/2005
• Status: Expired due to Fees

• Current Assignee: Sensormatic Electronics LLC (Johnson Controls International plc)
• Original Assignee: Sensormatic Electronics LLC (Johnson Controls International plc)
• Inventors: Kaenel, Tim V., Trivelpiece, Steve, Cocotis, Thomas, Campero, Richard J.
• Primary Examiner(s): Shah; Chirag G
• Assistant Examiner(s): PERSAUD, AMARNAUTH G
• Application Number:
  US11/366,664
• Publication Number:
  US 20060220862A1
• Time in Patent Office: 1,432 Days
• Field of Search: 370328-338
• US Class Current: 370/351
• CPC Class Codes: G06K 17/0022 arrangements or provisious for transferring data to distant stations, e.g. from a sensing device "transfer between computer elements G06F13/00 "; data-transmission H04L
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10079 the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
• 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: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H04L 41/0213 Standardised network management protocols, e.g. simple network management protocol [SNMP]
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 88/14 Backbone network devices
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Apparatuses, systems for, and methods of transporting digital signals and radio-frequency (“RF”) signals are disclosed. In accordance with a preferred embodiment of the invention, an intelligent network (e.g., a combination router) and corresponding method are provided for transporting RF signals to, for example, an RFID antenna and transporting digital signals to, for example, a controller. In a preferred embodiment, the intelligent network is implemented with a manager unit for controlling a plurality of network devices to facilitate the efficient management of RFID-enabled devices. The network devices may include a combination router/switch, which has the capability of switching both digital data and RF data, RFID readers, RFID reader/writer pads, and other devices. In accordance with preferred embodiments, the intelligent network allows enhanced flexibility in controlling systems for interrogation of RFID antennae.

Claims

1. A network for transporting RF data and digital signal data, the network comprising:

a plurality of network devices for receiving and communicating signals over the network, wherein each network device has a unique address, wherein the plurality of network devices includes;

a plurality of RFID antennae assemblies, each RFID antennae assembly including a plurality of RFID antennas;

two combination routers that each have the capability of processing command data signals and facilitating the transporting of both the RF data and the digital signal data, including command data signals, and wherein the at least two combination routers each further includes at least two bidirectional RF input ports, at least two bidirectional digital input ports, at least two bidirectional RF output ports and at least two bidirectional digital output ports, and further including logic, responsive to certain command data signals, for dynamically switching certain RF data between one of the bidirectional RF input ports and one of the bidirectional RF output ports, and certain digital signal data between one of the bidirectional digital input ports and one of the bidirectional digital output ports;

an RFID reader connected to one of the bidirectional RF input ports of each of the two combination routers for receiving read RF data from various ones of the plurality of RFID antennas through different RF routes, each of the different RF routes including one of the two combination routers, and wherein the RFID reader can further translate the read RF data into read digital data signals; and

a manager unit for controlling the network and for coordinating identification and notification of the plurality of network devices, including the plurality of RFID antennas, the at least two combination routers and the RFID reader, wherein the manager unit ensures that appropriate connections occur between each of the plurality of RFID antennas and the RFID reader at appropriate times to establish the RF routes.

2. The network of claim 1, further comprising:

a protocol server for assigning protocol addresses to activated ones of the plurality of network devices.

3. The network of claim 1, wherein the manager unit queries each activated network device to determine a network topology and maps the network topology to a site layout to recognize network devices.

4. The network of claim 1, wherein the manager unit comprises:

a configuration manager for controlling activation/deactivation of the RFID reader;

a route manager for determining and selecting the RF routes between the RFID reader and each of the plurality of RFID antenna, wherein the route manager tears down selected routes after use; and

an object manager for discovering new network devices on the network, and for maintaining status and configuration of such network devices.

5. The network of claim 4, wherein the manager unit provides fault notification.

6. The network of claim 5, wherein the fault notification comprises a fail-over recognition.

7. The network claim of 6, wherein upon receiving the fail-over recognition the configuration manager automatically redirects requests from a failed or down device or system to other available devices or systems.

8. The network of claim 1, wherein each activated one of the plurality of network devices identifies neighboring active network devices and provides information of such neighboring devices to the manager unit.

9. The network of claim 8, wherein each of the combination router exchanges protocol address information with a neighboring network device and sends the information of such neighboring device to the manager unit.

10. The network of claim 1, wherein at least one of the plurality of network devices includes sensors for at least one of:

determining RF power;

allowing remote control of RF power of the network device; and

measuring RF forward and RF reverse power for determining system connectivity, performance and tuning measurements.

11. The network of claim 1 further including another RFID reader, the another RFID reader being connected to one of the bidirectional RF input ports of each of the two combination routers for receiving some of the read RF data from various ones of the plurality of RFID antennas through the different RF routes, each of the different RF routes including one of the two combination routers, and wherein the another RFID reader can further translate the read RF data into read digital data signals.

12. The network of claim 11 wherein at least one of the combination routers, when switching configurations to establish another RF route, similarly switches both an RF data path and a digital data path within the at least one combination router to facilitate the transporting of both the RF data and the digital signal data.

13. The network of claim 11 further including a third combination router, the third combination router having the capability of processing command data signals and facilitating the transporting of both the RF data and the digital signal data, including command data signals, and wherein the third combination router further includes at least two bidirectional RF input ports, at least two bidirectional digital input ports, at least two bidirectional RF output ports and at least two bidirectional digital output ports, and further including logic, responsive to certain command data signals, for dynamically switching some certain RF data between one of the bidirectional RF input ports and one of the bidirectional RF output ports, and some certain digital signal data between one of the bidirectional digital input ports and one of the bidirectional digital output ports.

14. The network according to claim 13 wherein one of the bidirectional RF input ports of the third combination router is connected to one of the bidirectional RF output ports of each of the two combination routers, and one of the bidirectional digital input ports of the third combination router is connected to one of the bidirectional digital output ports of each of the two combination routers.

15. The network of claim 1 further including a third combination router, the third combination router having the capability of processing command data signals and facilitating the transporting of both the RF data and the digital signal data, including command data signals, and wherein the third combination router further includes at least two bidirectional RF input ports, at least two bidirectional digital input ports, at least two bidirectional RF output ports and at least two bidirectional digital output ports, and further including logic, responsive to certain command data signals, for dynamically switching some certain RF data between one of the bidirectional RF input ports and one of the bidirectional RF output ports, and some certain digital signal data between one of the bidirectional digital input ports and one of the bidirectional digital output ports.

16. The network according to claim 15 wherein one of the bidirectional RF input ports of the third combination router is connected to one of the bidirectional RF output ports of each of the two combination routers, and one of the bidirectional digital input ports of the third combination router is connected to one of the bidirectional digital output ports of each of the two combination routers.

17. The network of claim 15 wherein at least one of the combination routers, when switching configurations to establish another RF route, similarly switches both an RF data path and a digital data path within the at least one combination router to facilitate the transporting of both the RF data and the digital signal data.

18. The network of claim 1 wherein at least one of the combination routers, when switching configurations to establish another RF route, similarly switches both an RF data path and a digital data path within the at least one combination router to facilitate the transporting of both the RF data and the digital signal data.

19. The network of claim 1, wherein the plurality of network devices include at least one antenna controller disposed between some of the plurality of RFID antennas and one of the combination routers.

20. The network of claim 1 wherein the at least one antenna controller is connected to one of the bidirectional digital output ports and one of the RFID digital output ports, such that the antenna controller receives some of the digital data and can transmit some certain RF data to the one combination router.

21. The network of claim 20 wherein the one combination router, when switching configurations to establish an RF route with the at least one antenna controller, similarly switches both an RF data path and a digital data path within the one combination router to facilitate the transporting of both the RF data and the digital signal data.

22. The network of claim 20 wherein the at least one antenna controller is a shelf controller.