News Column

"System to Connect and Multiplex Sensor Signals" in Patent Application Approval Process

August 28, 2014



By a News Reporter-Staff News Editor at Politics & Government Week -- A patent application by the inventors Sandberg, Chet (Palo Alto, CA); Trout, Jonathan D. (CORONA, CA), filed on January 28, 2014, was made available online on August 14, 2014, according to news reporting originating from Washington, D.C., by VerticalNews correspondents.

This patent application has not been assigned to a company or institution.

The following quote was obtained by the news editors from the background information supplied by the inventors: "This invention relates to improvements in a system to connect and multiplex sensor signals. More particularly, the present system uses split core inductive sensors that connect to multiplexable sensor boards to monitor and communicate power loads without requiring the power loads to be de-activated for installation or maintenance of the sensors.

"Electrical distribution panels (e.g. circuit breaker panels) have limited space to install voltage and current sensors necessary for branch circuit monitoring. Running individual wires from each breaker to a central location is complicated and space constrained. Also changing the sensors with different configurations of the breakers is even more complicated. A number of patents and or publications have been made to address these issues. Exemplary examples of patents and or publication that try to address this/these problem(s) are identified and discussed below.

"U.S Pat. No. 7,215,109 issued on May 8, 2007 to and U.S. Pat. No. 7,309,979 that issued on Dec. 18, 2007, both to Richard A. Angerame et al., disclose monitoring power at a residence or power consumption point and provide a utility report. While these patents disclose a monitoring and reporting they require that the power is disconnected to tap into the power line and the monitoring devices can't be multiplexed together to provide for a greater number of reading sensors at a specific location.

"U.S. Pat. No. 5,502,374 issued on Mar. 26, 1996 to Roger S. Cota discloses current sensors from multiple simultaneous sources. While these sensors monitor the current being consumed by each motor the sensors do not monitor voltage and therefore the power consumption can't be determined. The sensors provide a signal to a single control panel with a fixed number of inputs.

"U.S. Pat. No. 4,974,327 issued on Dec. 27, 1988 and U.S. Pat. No. 4,855,671 issued on Aug. 8, 1989, both to Rossevelt A. Fernandes both disclose an electrical parameter power line monitoring apparatus. The apparatus provides a split core monitor. The monitor is placed around each conductor to monitor the power running through the conductor. While these patents cover monitoring the power through a conductor the signals are not multiplexed and are not expandable.

"U.S. Pat. No. 6,330,516 issued on Dec. 11, 2001 to John B. Kammeter discloses a branch circuit monitor. The branch circuit monitor includes a plurality of non-contact current sensors arranges to sense current on each of the plurality of branch circuits. While this patent discloses branch circuit monitoring the signals are not multiplexed and are not expandable to monitor additional circuits.

"What is needed is a system to connect and multiplex sensor signals. The system should also be adapted to three phase monitoring and ground fault measurement and monitoring which is not conveniently provided by existing hard wired systems. The system should be adaptable to different types of sensors which existing solutions do not. This disclosure provides the solution that is not being provided by other available or disclosed devices."

In addition to the background information obtained for this patent application, VerticalNews journalists also obtained the inventors' summary information for this patent application: "It is an object of the system to connect and multiplex sensor signals to install on any panel board configuration where the device gathers precise power information for amps, volts, power factor, watts and kWh--and is certified to provide utility-grade data on each branch circuit metering.

"It is an object of the system to connect and multiplex sensor signals to monitor power metrics from the iBCPM can integrate with any BMS or DCIM system via Modbus TCP, SNMP or BACnetIP. The system is powered by a TrendPoint xD processor for the iBCPM to provide data and event logging as a standard feature.

"It is an object of the system to connect and multiplex sensor signals for the EnerSure iBCPM to be part of an EnerSure platform of products that provides the most accurate, flexible, and adaptable power metering solutions in the market and is used in some of the most prestigious facilities in the world.

"It is another object of the system to connect and multiplex sensor signals for the EnerSure.RTM. iBCPM panel board strip to be linked with EnerSure Bus cards to provide additional monitoring up to 120 circuits on a single iBCPM system. Additional circuits can be added in 4 or 8 circuit groups.

"It is another object of the system to connect and multiplex sensor signals for the EnerSure iBCPM to employ 21 power meter-on-a-chip units on each panelboard strip. Up to 4 panel board strips per units can be connected together to, each EnerSure iBCPM thereby to accommodate up to 84 circuits of utility grade panelboard power data.

"It is still another object of the system to connect and multiplex sensor signals for the system to be adaptable to three phase monitoring and ground fault measurement and monitoring which is not conveniently provided by existing hard wired systems. The system should be adaptable to different types of sensors which existing solutions do not. The number of plug connections may line up with and match the number of circuit breakers on one side of the panel.

"Various objects, features, aspects, and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, along with the accompanying drawings in which like numerals represent like components.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

"FIG. 1 shows a top view of the iBCPM panel board strip.

"FIG. 2 shows a perspective view of a circuit breaker with a current transformer.

"FIG. 3 shows a second embodiment where a cable with connectors has sockets for the current transformers.

"FIG. 4 shows perspective view of a first embodiment of a current transformer.

"FIG. 5 shows perspective view of a second embodiment of a current transformer.

"FIG. 6 shows a perspective view of a potential transformer.

"FIG. 7 shows a perspective view of an iBCPM metering system for 84 circuits.

"FIG. 8 shows a connection for multiple power breakers with an interconnecting bus that supports multiple busway power meters.

"FIG. 9 shows a closed circuit metering unit from FIG. 8.

"FIG. 10 shows an opened circuit metering unit from FIG. 5."

URL and more information on this patent application, see: Sandberg, Chet; Trout, Jonathan D. System to Connect and Multiplex Sensor Signals. Filed January 28, 2014 and posted August 14, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=4744&p=95&f=G&l=50&d=PG01&S1=20140807.PD.&OS=PD/20140807&RS=PD/20140807

Keywords for this news article include: Patents, Legal Issues.

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Source: Politics & Government Week


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