Described implementations utilize existing power lines at a location to detect and monitor the presence, position, and/or identity of users at the location. Rather than requiring dedicated monitors within each room or position within the location, the described implementations monitor a baseline voltage signal and/or an introduced voltage signal on the ground line of an existing power line of the location to determine the presence, position, and/or identity of a user at the location, either alone or in combination with other information.

A sealed enclosure power control system for controlling power to an electrical component within an enclosure. The sealed enclosure power control system generally includes an electrical component within the sealed enclosure, a first connector on the sealed enclosure adapted to provide a sealed electrical interface to the electrical component. The first connector has at least one first connector conductor element, and the system further includes a battery within the sealed enclosure, and the system also has a second connector, wherein when the first connector and the second connector are connected together, electrical power from the battery is applied to the electrical component, and when the first connector and the second connector are not connected together, the electrical power is not applied to the electrical component.

An integrated circuit includes: a first current detection circuit configured to, when a first enable signal is in an activated state, detect a current flowing between a first node and a second node, and generate an output signal, and when the first enable signal is in a deactivated state, stop a current detection operation; a first voltage detection circuit, which operates intermittently or operates continuously, that is configured to detect a voltage at the first node, and generate an output signal; and a control circuit that is configured to generate the first enable signal and supply the first enable signal to the first current detection circuit, and is configured to fetch the output signal of the first voltage detection circuit in a period other than the period in which the first enable signal transitions from a deactivated state to an activated state.

A measuring apparatus includes a base portion attachable to an attachment target object and a cover portion configured to be detachably attached to the base portion to accommodate a rod-shaped replaceable object inside the cover portion, and the cover portion includes a holding portion configured to hold the replaceable object with the cover portion attached to the base portion.

A computer power supply assembly (PSA) is provided. The PSA comprises an AC/DC power supply unit (PSU) and a DC/DC converter module. The DC/DC converter module is attached to the AC/DC power supply unit via conductor which may be a conductive bridge that holds the AC/DC PSU in fixed relation to the DC/DC converter module, or may be a conductive cable with, for example, a twist connector. The DC/DC converter module is replaceable and interchangeable. Different types of DC/DC converter modules having different numbers and combinations of connectors for attachment to the electronics system devices and different wattage and efficiency can be electrically connected to the PSU via the one conductor.

A power adapter unit may include, in an example, a first piece comprising an enclosure to place a power adapter therein; a second piece to contain the power adapter within the power adapter unit; and a cable wrapping surface formed by the second piece being coupled to the first piece.

Described may be a modular network communication system for use in a foundational structure, for the inclusion of new foundational structure construction, or configured for mobility between different foundational structures. The network communication system may be configured to support a broad array of network-related communications. The foundational structure's modular network communication system may have a controller, a power connection point, a communication protocol, and may include one or more than one network node. The controller unit may have processing circuitry and may be configured to utilize a communication protocol for controlling the foundational structure's information flow of the modular network communication system. Additionally, the controller may be further configured to communicate with at least one, but also more than one network-connected device which may or may not be connected to the internet.

An electronic device includes a power supply, a connector, a detector, and a switch. The connector is configured to be alternatively connectable in a first direction and in a second direction. The detector is configured to detect which of the first direction and the second direction the connector has been connected in. The switch is configured to switch a state of the electronic device between a first state to supply power to another device and to a second state to receive power from said another device. The switch is configured to switch the state of the electronic device to the first state or the second state according to a connection direction of the connector detected by the detector.

A case module that is capable of installing a first electronic module and a second electronic module, includes a cage and a restraining component. The first electronic module can move relative to the cage to a first installation position along a first direction. The second electronic module can move relative to the cage to a second installation position along a second direction perpendicular to the first direction. When the first electronic module moves relative to the cage toward the first installation position along the first direction, the restraining component is driven to move relative to the cage toward a restraining position along the first direction. The second electronic module can be stopped by the restraining component when the restraining component is located at the restraining position.

A component throttling power backup charging system includes a chassis defining a chassis housing and a chassis air inlet to the chassis housing, at least one component located in the chassis housing and adjacent the chassis air inlet, and a power backup device located opposite the at least one component from the chassis air inlet. The power backup device determines that a charging condition has been satisfied. The power backup device then determines that a temperature of air being provided to the power backup device exceeds a threshold temperature and, in response, transmits a throttling instruction that is configured to cause throttling of the at least one component. The power backup device subsequently determines that the temperature of the air being provided to the power backup device no longer exceeds the threshold temperature and, in response, performs charging operations.