Abstract: A system (60) that monitors and analyzes power consumption signals over time for household equipment (35). Equipment (35) may exhibit a representative operating signature. The system analytics may include determining a ‘normal’ operating signature for a piece of monitored equipment (35), which may include minimum and maximum expected ranges for different transition points or other characteristic points in the signature. The characteristic points may include points of minimum variability in magnitude. Based on monitoring the characteristic points, the system (60) may make a binary determination of “normal” or “abnormal.” That is, the system (60) may determine that an operational run of the equipment (35) is good or “potentially not good,” based on a comparison of the measured characteristics points to a normal operating signature. In response to a binary determination of abnormal, the system (60) may output a signal to alert user, a repair facility, or similar entity of the potential abnormal behavior.

Abstract: A power consumption monitoring device (120) that may be attached to any electrically powered equipment (102). In some examples, the device (120) may include a male and female electrical plug that may be inserted between the equipment (102) and line power (104). In other examples, one or both ends of the device (120) may be hard-wired to the equipment (102) and or to line power (104). The device (120) may include monitoring circuitry and a power cord “pigtail” with one or more wires shielded from the other wires to avoid canceling the inbound and outbound current. Also, part of the shielding (112), or other portion of the pigtail may act as an antenna to communicate between the monitoring circuitry and a gateway (130). The components of the device (120) of this disclosure may be completely implemented within the power cord, such that performance monitoring can be performed on the equipment (102) without the equipment (102) itself including a monitoring device.

Abstract: This disclosure creates a language that may describe how any type of equipment behaves. The scalable language may uniquely identify equipment and components of equipment. The language includes “words” comprising characters that can describe the sequence of operations of the equipment. The characters may describe characteristic signatures in power consumption signals of the equipment as well as components of the equipment over an operational cycle of the equipment. The characters, e.g., “glyphs” or “runes,” may use a scale-free format modeled after typography. These characters may be scaled to give different confidence levels when comparing the characters to monitored power consumption signals. The language also describes how the equipment transitions between events during the sequence of operation. A compiler may use this language to generate programming instructions that may cause processing circuitry to efficiently monitor equipment, including determining a state of health of the equipment.

Abstract: One example provides a device, including: a current sensing mechanism, wherein the current sensing mechanism detects current traveling through a wire of equipment that the device is connected to; an energy harvester electrically coupled to the current sensing mechanism, wherein the energy harvester draws power from a signal associated with the current sensing mechanism; an energy storage unit electrically coupled to the energy harvester, wherein energy harvested from the energy harvester charges the energy storage unit; and a communication device, wherein the communication device transmits information associated with the equipment to another device.

Abstract: One example provides a device, including: a current sensing mechanism, wherein the current sensing mechanism detects current traveling through a wire of equipment that the device is connected to; an energy harvester electrically coupled to the current sensing mechanism, wherein the energy harvester draws power from a signal associated with the current sensing mechanism; an energy storage unit electrically coupled to the energy harvester, wherein energy harvested from the energy harvester charges the energy storage unit; and a communication device, wherein the communication device transmits information associated with the equipment to another device.