Light monitoring system using a random phase multiple access system
First Claim
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1. A method of monitoring lighting equipment, the method comprising:
- receiving, at a processor, monitor data from a lighting equipment monitor;
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; and
transmitting the spread data stream at a first time based on a slot 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 from a remote node at a second time based on the slot time and a second randomly selected timing offset.
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Abstract
Methods, systems, and apparatuses, including computer programs encoded on computer-readable media, for receiving monitor data from a lighting equipment monitor. 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. A frequency offset to the spread data stream based at least in part on a timing of the access point is applied. The spread data stream is transmitted with a randomly selected timing offset.
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Citations
20 Claims
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1. A method of monitoring lighting equipment, the method comprising:
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receiving, at a processor, monitor data from a lighting equipment monitor; 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; and transmitting the spread data stream at a first time based on a slot 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 from a remote node at a second time based on the slot time and a second randomly selected timing offset. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lighting equipment monitor comprising:
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a monitor configured to; monitor lighting equipment; and provide monitor data based upon the monitoring of the lighting equipment; and a 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 first randomly selected timing offset for the spread data stream; and a transmitter configured to transmit the spread data stream at a first time based on a slot time and the 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 from a remote node at a second time based on the slot time and a second randomly selected timing offset. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification