A sensor system includes a controller and sensors. The controller is to transmit a signal. The sensors are connected to the controller in series via at least one cable to sequentially transfer the signal transmitted from the controller via the at least one cable.

A sensor system includes a controller and sensors. The controller is to transmit a signal. The sensors are connected to the controller in series via at least one cable to sequentially transfer the signal transmitted from the controller via the at least one cable.

A computer-implemented method performed by a computerized device, comprising: obtaining consumption data comprising readings indicating consumption of a product, the consumption data is monitored by a plurality of metering devices, wherein the metering devices are associated with a plurality of consumption entities, wherein the plurality of consumption entities comprising a consumption unit and one or more sub consumption units of the consumption unit, wherein the product is supplied serially to the one or more sub consumption units via the consumption unit; and calculating residual consumption of the plurality of consumption entities at a point in time, wherein the residual consumption is consumption of the consumption unit and which is not associated with a sub consumption unit, wherein the residual consumption is calculated based on the consumption by the plurality of consumption entities at a plurality of points in time.

An advanced metering infrastructure (AMI) system includes a meter data management system, an AMI network, a network communication module and metering devices. The AMI network connects to a reference time clock and the meter data management system. The network communication module connects to the AMI network and is in communication with the reference time clock via the AMI network. Each metering device is connected to the network communication module and has a metrology device and a communication module device. The communication module device provides clock adjustments to the metrology clock and/or its own clock. The metrology device provides clock adjustments to the communications module clock and/or its own clock. Methods for use in an advanced metering infrastructure (AMI) system provide clock adjustments.

A apparatus is provided that includes a plurality of wireless sensors arranged into a mesh network, wherein each of the plurality of sensors detects threats within a secured geographic area, a processor of each of the plurality of sensors that detects operational and environmental operating conditions of a respective one of the plurality of sensors and reports the operational and environmental operating conditions, a control panel processor that receives and correlates at least one of the operational and environmental operating conditions of the respective one of the plurality of sensors to a potential failure mode and reports the potential failure mode to a cloud application, and a cloud processor of the cloud application that determines a location of the respective one of the plurality of sensors and reports the potential failure mode and the location to a person responsible for the respective one of the plurality of sensors.

A method and system for estimating energy consumption of a utility population includes organizing the utility population comprising energy consumers into a plurality of groups. Next, a distribution of energy consumption against the plurality of groups may be calculated. Subsequently, statistically representative groups based on the energy distribution and the plurality of groups may be determined. Data is then collected from the statistically representative groups at predefined intervals from a communications network. Energy consumption of the utility population may then be estimated based on the data collected from the statistically representative groups. The communications network comprises an advanced metering infrastructure (AMI) network.