A power consumption pattern extraction apparatus according to one embodiment includes a processor and a memory storing program instructions that cause the processor to receive, as an input, a total power consumption for every predetermined time interval over a predetermined time period by a consumer group which consumes power, create a total power consumption matrix that has the total power consumption, received as an input, as elements and has rows and columns corresponding to preset units, perform non-negative matrix factorization on the created total power consumption matrix to create a first factor matrix including basis vectors and a second factor matrix including coefficients for the basis vectors, and extract power consumption patterns and proportions of consumers that consume power in the power consumption patterns from the created first and second factor matrices.

A broadband access system, comprising a broadband access hub device (hub device) and broadband access premise devices (premise devices) wirelessly coupled the hub device to provide broadband services to multiple user equipment (UEs), is described. The hub device may access broadband services on a fiber optic broadband network and wirelessly provide access to the broadband services to the premise devices. The premise device may wirelessly communicate with the hub device and communicate with user equipment (UEs) for providing access to the broadband services through the hub device. The premise device may be attached to an electric utility meter, and a power interface module of the premise device may supply electrical power to the premise device from the electric utility meter.

An extension cord includes a plurality of electrical conductors. A plug is configured to electrically couple a first respective end of the plurality of electrical conductors with an electrical receptacle of a power source. An outlet assembly is coupled with a second respective end of the plurality of electrical conductors. The outlet assembly may include one or more outlet receptacles configured to provide electrical power from the power source. A power meter may be configured to measure an electrical draw through the outlet assembly and to provide a user perceptible output based upon the measured electrical draw. A carbon monoxide monitor may be configured to detect an environmental carbon monoxide level proximate the outlet assembly and to provide a user perceptible indication when the detected environment carbon monoxide level exceeds a threshold.

A meter communication interface device includes a radio frequency (RF) communication unit, multiple different types of communication ports, and a controller. The RF communication unit receives, via RF signaling, at least one of first commands, instructions or data destined for a first meter encoder, meter, or meter interface unit (MIU). The controller selects a first communication port from the multiple different types of communication ports, and sends, via the selected first communication port using a first communication mechanism, the at least one of first commands, instructions or data to the first meter encoder, meter, or MIU.

A system is disclosed which eliminates problems caused by surges of electric energy which is generated on a utility customer's property and which is fed back onto a utility-owned service line by maintaining a minimum utility provided percentage (MUPP) of power being provided onto a customer-owned dead-end service line. Where the electric energy generated by a utility customer is incrementally excluded from the customer-owned dead-end service line through a plurality of contactors which are controlled by a 120 volt command line.

One embodiment is an LTE antenna optimized for North American Electricity meters. In one example, the carrier assembly component is a device comprising a carrier having first and second asymmetrical voids on a surface; a backer on a first side of the surface of the carrier; and first, second, third, and fourth structures on a second side of the carrier connected to the backer via the asymmetrical voids.

A power consumption calculation apparatus identifies, from a history of a total power consumption Wx measured at a facility including power supply equipment, air conditioning equipment, and communication equipment; identifies, for each Wx, an air conditioning efficiency Ra; calculates a power consumption Wc′ in a second area excluding a first area in the facility by applying each Wx and Ra to a relation Wc+Wa+(Wx×Rp)=Wx where Ra is calculated by dividing Wa being a power consumption of the communication equipment by Wa being a power consumption of the air conditioning equipment and Rp is a loss factor of Wx; and calculates a power consumption of the first or second area based on Wx corresponding to a second period in the history, Wc′, Rp, and an air conditioning efficiency Ra′ corresponding to the second period.

Power converters, and microgrids driven by such a power converter, in which the converter is controlled by a proportional controller which operates directly on AC waveforms, preferably without conversion to a DC type signal; preferably with use of voltage compensation to remove inherent error of proportional controller; and preferably with use of individual phase RMS voltages in the voltage compensation, to allow for normal operation under any load condition. Undervoltage of one or two phases is automatically compensated by adjusting the voltage of all phases, to retain balance. Line-starting of a motor load is automatically detected, and frequency droop is driven, apart from the other control relations in the system, to complete the line-starting operation as quickly as possible.

According to one embodiment, an electronic device includes a transformer connected to a power supply device, a super capacitor chargeable with an output of the transformer, a voltage converter connected to the transformer, a processor having a power supply terminal supplied with an output of the voltage converter, first and second photo-couplers connected to the power supply device, and a capacitor connected to a primary side of the second photo-coupler through a resistor. The primary side of the second photo-coupler is grounded via a pull-down resistor. The processor includes first and second terminals connected to the first and second photo-couplers and a third terminal supplied with a charging voltage of the super capacitor.

An integrated woodworking system connectable to an external source of electricity includes an enclosure, a management and control center, and plural tool holders. The management and control center is provided in the enclosure; is connectable to the source of electricity and a source of gas pressure; can control the consumption of input electricity, the flow rate of input gas, and a pneumatic tool such as a dust collector; and has at least one electricity output cable and at least one gas output hose. The tool holders are provided in the enclosure and are each connected to the electricity output cable or the gas output hose. The system incorporates the woodworking tools one needs into the enclosure and can be sold as a whole to save the trouble of purchasing and installing the tools individually. By managing power consumption in general, the system prevents overloading.