Method and system are provided for power socket management. The method carried out at a server may include receiving power data from a plurality of user devices and obtaining event information for an event location, including details of the user devices required for the event. The method may process the power data for the required user devices for an event by optimizing the use of power sockets at the event location. The method may notify the required user devices of the optimized socket usage for a user device.

A system and method is disclosed for detecting a specific voltage phase, from a multiphase voltage source, and a specific outlet of an intelligent power strip, that is associated with a residual current flow. The method accomplishes this by using a system that employs a statistical time series analysis using a Pearson's correlation coefficient calculation to measure the linear dependence between the discretely sampled residual current waveform and each phase and outlet's discretely sampled current waveforms, in turn. A residual current as low as 1 mA can be accurately measured and its associated voltage phase source, as well as which outlet of an intelligent power strip it flows out of, can be reliably determined.

A power distribution unit (PDU) comprises a housing, a power module mechanically connected to the housing, at least one outlet module separately and mechanically connected to the housing, and a communications module mechanically connected to the housing. The PDU includes busbars that are electrically connected to the modules.

A network of devices that include Workspace Fitness Devices, such as Smart Under-the-desk Bikes and Smart Desk Controllers embedded in Smart Sit-and-Stand Desks that connect or talk to one another, electronically identify individual users, track their activities, connect to a remote server database, and modify its records. Secondary devices such as smartphones, can connect to this network to remotely monitor and control the settings on the devices such as the desk's height or the required tension in the Smart Under-the-Desk Bike. The performance data captured by this network of devices can be shared to fitness tracking software or devices. By using our invention, we plan to motivate employees that sit behind the desk for numerous hours throughout the day to improve their health, productivity, and overall wellbeing.

The present disclosure relates to an energization method and apparatus for a power strip, and a storage medium. The method includes: de-energizing respective sockets of a power strip, detecting use states of the respective sockets of the power strip using independently powered sensors, and controlling the first socket to be energized when the use state of a first socket of the power strip is having a plug inserted therein.

A method of preventing disjunctions in a power distribution unit having a plurality of output connectors is disclosed. A power level of each of the output connectors is sensed. It is detected that the power level of a given output connector exceeds a fixed power limit. In response to the detection, a delivery of power by the given output connector is stopped while maintaining a delivery of power by a remainder of the output connectors. Power delivery may be resumed in response to receiving a user command to rearm the given output connector. A power distribution unit adapted to prevent disjunctions is also disclosed.

A circuit comprises an output connector connectable to a load. A relay selectively connects the output connector to an AC power source. The relay is responsive to a disabling signal to disconnect the output connector from the AC power source. A sensor senses a level of power delivered to the load via the output connector. A detector emits a first fault signal when the sensed power level exceeds a fixed power limit. A latch maintains the first fault signal until it receives a rearm signal. A controller emits a second fault signal when the sensed power level exceeds a configurable power threshold, receives a user command to rearm the circuit, and in response to receiving the user command, emits the rearm signal and ceases the emission of the second fault signal. A logic combiner generates the disabling signal when it receives one of the first and second fault signals.

A method of limiting a total power delivered by a power distribution unit having a plurality of output connectors is disclosed. A configurable power threshold is assigned for each of the output connectors so that a sum of the configurable power thresholds of the output connectors does not exceed a maximum rated power for the power distribution unit. A power level of a given output connector is sensed. A delivery of power by the given output connector is stopped when the power level of the given output connector exceeds the configurable power threshold for the given output connector. Power delivery may be resumed in response to receiving a user command to rearm the given output connector. A power distribution unit adapted to limit its total power delivery is also disclosed.

The light device has USB charger has AC outlet power source has though the AC-to-DC device to change from 1.sup.st Alternative current to 1.sup.st voltage Direct current and the 1.sup.st voltage DC current though the circuit-inside or IC or DC-to-DC circuit to get 2.sup.nd voltage or though more DC-to-DC devices to get more voltage DC current. The light device has At least one of voltage DC current to supply to USB Charger Charging-port output-end at 5 Volt and one of desire voltage DC current to supply to DC light source. Or/ The 1.sup.st AC current to AC light source and has one of DC current selected from 1.sup.st, 2.sup.nd or more voltage DC current to USB Charger charging-port's output end so the said light device has (1) illumination function by DC or/and AC light source and (2) USB charger function by supply desired 1.sup.st or 2.sup.nd or more other voltage DC current to USB charging-port at 5 Volt DC. The light device optional has outlet-ports to get 1.sup.st AC directly though conductive parts to outlet-ports to supply AC to other device. Furthermore, the light device Optional can add other function(s) select from (a) Time piece related (b) Reflect Image (c) Power station (d) project image (e) heater (f) Air Flow (g) wireless communication (h) remote controller (g) APP controller (h) Blue-tooth controller.

A power distribution unit (PDU) comprises a housing, a power module mechanically connected to the housing, at least one outlet module separately and mechanically connected to the housing, and a communications module mechanically connected to the housing. The PDU includes busbars that are electrically connected to the modules.