Component diversity in a RFID security network
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04Q-005/22
H04Q-005/00
출원번호
US-0321776
(2005-12-29)
등록번호
US-7495544
(2009-02-24)
발명자
/ 주소
Stilp,Louis A.
출원인 / 주소
InGrid, Inc.
대리인 / 주소
Stradley Ronon Stevens & Young, LLP
인용정보
피인용 횟수 :
11인용 특허 :
155
초록▼
An RFID security network using system component diversity and system spatial diversity is disclosed. The security network includes a plurality of network base units, each communicating with a plurality of transponders, or security transmitters. Through appropriate distributive placement of the plura
An RFID security network using system component diversity and system spatial diversity is disclosed. The security network includes a plurality of network base units, each communicating with a plurality of transponders, or security transmitters. Through appropriate distributive placement of the plurality of base units, along with appropriate placement of the transponders, the redundancy and reliability of the RF communication links between one or more base units and one or more transponders is increased. Moreover, because each of the base units is capable of being a communications gateway with an external network, including a telecommunications network, the security network's access to an outside telecommunications network is redundant and highly reliable. Accordingly, even if an intruder attempts to disable the security system communications to an external network, the inventive security network has redundant and alternative communication links to an external network. Such component and spatial diversity substantially enhances the security network's reliability.
대표청구항▼
What is claimed is: 1. An RFID security network for monitoring a stationary structure, comprising: two base units; and a plurality of transponders, each said transponder being located in a fixed and static position relative to the stationary structure and having two-way communications with each of
What is claimed is: 1. An RFID security network for monitoring a stationary structure, comprising: two base units; and a plurality of transponders, each said transponder being located in a fixed and static position relative to the stationary structure and having two-way communications with each of the two base units; wherein the two base units are appropriately located relative to the stationary structure to provide redundant communication links between each of the two base units and the plurality of transponders. 2. An RFID security network for monitoring a stationary structure, comprising: a plurality of base units; and a plurality of transponders, each said transponder being located in a fixed and static position relative to the stationary structure and being in two-way communications with each of the plurality of base units; wherein the plurality of base units are appropriately located relative to the stationary structure to provide multiple redundant communications links between each of the plurality of base units and each of the plurality of transponders. 3. The RFID security network for monitoring a structure of claim 2, wherein each of the plurality of transponders transmit messages at approximately 345 MHz. 4. The RFID security network for monitoring a structure of claim 2, wherein the plurality of base units transmit messages to the plurality of transponders at approximately 2.4 GHz. 5. An RFID security network for monitoring a stationary structure, comprising: a plurality of base units, each said base unit having a controller function, each said base unit appropriately located relative to the stationary structure to provide redundant communication links between each other and each said base unit being a separate gateway to at least one external network; and a plurality of transponders, each said transponder being located in a fixed and static position relative to the stationary structure and being in two-way communications with each of the plurality of base units; wherein if a base unit is disabled, at least one other network base unit has a communications link to the at least one external network. 6. The RFID security network for monitoring a structure of claim 5, further wherein the plurality of base units are appropriately located within the structure to provide multiple communications links between each of the plurality of base units and each of the plurality of transponders. 7. The RFID security network for monitoring a structure of claim 5, wherein at least one of the plurality of base units is located within a structure separate from the structure being monitored. 8. The RFID security network of claim 5 wherein one of the external networks is the PSTN ("Public Switched Telephone Network"). 9. The RFID security network of claim 5 wherein one of the external networks is the Internet. 10. The RFID security network of claim 5 wherein one of the external networks is a broadband internet network. 11. The RFID security network of claim 5 wherein one of the external networks is a CMRS ("Commercial Mobile Radio Service") network. 12. An RFID security network for monitoring a stationary structure, comprising: at least two base units, each said base unit having at least two antennas; and a plurality of transponders, each said transponder having at least one antenna, and each said transponder being located in a fixed and static position relative to the stationary structure and having two-way communications with each of the at least two base units; wherein the at least two base units are appropriately located relative to the monitored stationary structure to provide redundant communication links between each of the at least two base units and the plurality of transponders; and further wherein each base unit that receives a message from a transponder transmits a response message to the sending transponder at least once from each of the at least two antennas within each transmitting base unit. 13. The RFID security network for monitoring a structure of claim 12, wherein each of the plurality of transponders transmit messages at approximately 345 MHz. 14. The RFID security network for monitoring a structure of claim 12, wherein the at least two base units transmit messages to the plurality of transponders at approximately 2.4 GHz. 15. The RFID security network for monitoring a structure of claim 12, wherein each of the at least two base units have an antenna in an approximate horizontal orientation, and an antenna in an approximate vertical orientation. 16. A method for an RFID security network, monitoring a stationary structure, to alert an emergency response entity, said RFID security network including a plurality of base units, with each said base unit being a separate gateway to an external network, each said base unit appropriately located relative to the stationary structure to provide redundant communication links between each other and said RFID security network including a plurality of security transmitters located in a fixed and static position relative to the stationary structure and in two-way communications with each of the plurality of base units, the method comprising the steps of: at least one of the plurality of base units receiving an alert notification from at least one of the security transmitters; a first base unit that received the transmitter alert notification attempting to contact an emergency response entity through an external network; if the first base unit's attempt to contact an emergency response entity fails, then a second base unit attempting to contact an emergency response entity through an external network; if the second base unit's attempt to contact an emergency response entity fails, then a third base unit attempting to contact an emergency response entity through an external network; and each base unit in succession continuing to attempt to contact an emergency response entity through an external network until a successful notification is achieved. 17. The method for an RFID security network to alert an emergency response entity of claim 16, wherein the external network is a PSTN. 18. The method for an RFID security network to alert an emergency response entity of claim 16, wherein at least one of the plurality of base units is located in a structure separate from the structure being monitored.
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