Water monitoring system using a random phase multiple access system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-001/707
G08B-023/00
H04B-001/7103
H04J-013/00
H04B-001/7073
G01D-004/00
H04W-072/04
H04L-027/233
H04B-007/06
H04L-001/00
H04L-007/00
H04W-074/08
H04L-001/18
H04L-027/00
출원번호
US-0937990
(2013-07-09)
등록번호
US-8831069
(2014-09-09)
발명자
/ 주소
Sinsuan, Kenneth C.
Myers, Theodore J.
Cohen, Lewis N.
Werner, Daniel Thomas
Hughes, Matthew
Boesel, Robert W.
Singler, Patrick M.
출원인 / 주소
On-Ramp Wireless, Inc.
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
0인용 특허 :
188
초록▼
Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, are configured for receiving monitor data from a water meter. A data stream is created based upon the monitor data. The data stream is spread with a common pseudo-noise (PN) code that is used by a plur
Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, are configured for receiving monitor data from a water meter. A data stream is created based upon the monitor data. The data stream is spread with a common pseudo-noise (PN) code that is used by a plurality of nodes in communication with an access point. The spread data stream is transmitted at a first time based on a slot start time and a first randomly selected timing offset. The spread data stream is transmitted while at least a portion of a second spread data stream is transmitted at a second time based on the slot start time and a second randomly selected timing offset. The second spread data stream is spread with the common PN code.
대표청구항▼
1. A method of monitoring a water service, the method comprising: receiving, at a processor, monitor data from a water meter;creating a data stream based upon the monitor data;spreading the data stream with a common pseudo-noise (PN) code, wherein the common PN code is used by a plurality of nodes i
1. A method of monitoring a water service, the method comprising: receiving, at a processor, monitor data from a water meter;creating a data stream based upon the monitor data;spreading the data stream with a common pseudo-noise (PN) code, wherein the common PN code is used by a plurality of nodes in communication with an access point; andtransmitting the spread data stream at a first time based on a slot start time and a first randomly selected timing offset, wherein the spread data stream is transmitted while at least a portion of a second spread data stream is transmitted, wherein the second spread data stream is spread with the common PN code, and wherein the second spread data stream is transmitted at a second time based on the slot start time and a second randomly selected timing offset. 2. The method of claim 1, further comprising: determining if water pressure of the water service falls below a threshold;initiating a transmission of the spread data stream based upon the determining if the water pressure of the water service falls below the threshold. 3. The method of claim 1, wherein the monitor data comprises data representing water pressure, burst detection, leak detection, reversed flow, low battery, temperature, or tank levels. 4. The method of claim 1, further comprising: determining tampering of the water meter; andinitiating a transmission of the spread data stream based upon the determination of tampering. 5. The method of claim 1, further comprising: receiving a first command to disconnect the water service monitored by the water meter; andsending a second command to the water meter to disconnect the water service. 6. The method of claim 1, further comprising receiving, from the access point, a monitor read schedule, wherein receiving the monitor data is based upon the received monitor read schedule. 7. The method of claim 1, wherein transmitting the spread data stream is based upon a transmission schedule. 8. The method of claim 1, further comprising receiving, from the access point, a transmission schedule, wherein transmitting the monitor data is based upon the received transmission schedule. 9. The method of claim 1, wherein the first randomly selected timing offset is between zero and a spreading factor used to spread the data stream minus one. 10. The method of claim 1, further comprising retransmitting the spread data stream with a third randomly selected timing offset if an acknowledgement is not received within a predetermined time period. 11. The method of claim 1, wherein the common PN code comprises a gold code. 12. A water meter comprising: a monitor configured to: monitor a water service; andprovide monitor data based upon the monitoring of the water service; anda transmit apparatus comprising: a pseudo-noise (PN) spreader configured to receive a data stream comprising the monitor data and spread the data stream with a common PN code, wherein the common PN code is used by a plurality of nodes in communication with an access point;a delay module configured to generate a randomly selected timing offset for the spread data stream; anda transmitter configured to transmit the spread data stream at a first time based on a slot start time and a first randomly selected timing offset, wherein the spread data stream is transmitted while at least a portion of a second spread data stream is transmitted, wherein the second spread data stream is spread with the common PN code, and wherein the second spread data stream is transmitted at a second time based on the slot start time and a second randomly selected timing offset. 13. The water meter of claim 12, further comprising a processor configured to: determine if water pressure of the water service falls below a threshold;initiate a transmission of the spread data stream based upon the determining if the water pressure of the water service falling below the threshold. 14. The water meter of claim 12, wherein the monitor data comprises data representing water pressure, burst detection, leak detection, reversed flow, low battery, temperature, or tank levels. 15. The water meter of claim 12, further comprising a processor configured to: determine tampering of the water meter; andinitiate a transmission of the spread data stream based upon the determination of tampering. 16. The water meter of claim 12, further comprising a processor configured to: receive a first command to disconnect the water service monitored by the water meter; anddisconnect the water service. 17. The water meter monitor of claim 12, further comprising a receiver configured to receive, from the access point, a monitor read schedule, wherein the monitor provides the monitor data based upon the monitor read schedule. 18. The water meter monitor of claim 12, wherein the first randomly selected timing offset is between zero and a spreading factor used to spread the data stream minus one. 19. The water meter monitor of claim 12, wherein the transmitter is further configured to retransmit the spread data stream with a third randomly selected timing offset provided by the delay module if an acknowledgement is not received within a predetermined time period. 20. The water meter of claim 12, wherein the common PN code comprises a gold code.
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