摘要:
Certain embodiments of the invention may include systems, methods, and apparatus for modifying sensor time stamp data. According to an example embodiment of the invention, a method is provided for monitoring and correcting sample time stamps. The method can include receiving packet data from one or more sensors or intelligent electronic devices (IEDs); examining time stamps associated with the received packet data; and determining a variance between the time stamps or an offset between the time stamps and an accurate time source.
摘要:
A system for transmitting data in an advanced metering infrastructure (AMI) is provided. The system includes an AMI network configured to communicate by transmitting data via a plurality of physical communication media that include at least a first physical communication medium and a second physical communication medium, and a plurality of meters. Each of the plurality of meters are configured to select a physical communication medium from the first physical communication medium and the second physical communication medium based at least in part on an operational state of the first physical communication medium and an operational state of the second physical communication medium, and communicate with the AMI network via the selected physical communication medium.
摘要:
A detection device for monitoring at least one message transmitted between components included within a grid control system is provided. The detection device includes a memory device configured to store a rationality database that includes at least one rule, and a processor coupled to the memory device and configured to receive the at least one message and to compare the at least one message with the at least one rule to determine a rationality of the at least one message.
摘要:
A system for generating an energy usage profile of an electrical device is provided. The system includes a meter configured to measure electric energy usage; a memory area for storing an energy usage profile corresponding to one or more electrical devices associated with the electric meter, and at least one processor. The at least one processor is programmed to receive a request to turn off power to each of the one or more electrical devices associated with the meter, receive a request to turn on a first electrical device of the one or more electrical devices, obtain a ramp up waveform of energy usage of the first electrical device, convert the ramp up waveform to a digital signature, and store the ramp up digital signature of the first electrical device in the memory area.
摘要:
An electric vehicle charging system is described. The electric vehicle charging system includes a plurality of electric vehicle charging apparatus coupled to, and configured to receive electric power from, a distribution transformer. The electric vehicle charging system also includes a central processing device configured to control operation of the plurality of electric vehicle charging apparatus.
摘要:
Systems, methods, and apparatus for identifying, invalid nodes within a mesh network are provided. A routing table may be maintained by a utility meter. The routing table may include information associated with one or more devices in communication with the utility meter via a mesh network. A change in the routing table may be identified by the utility meter, and an alert message associated with the identified change may be generated by the utility meter. The generated alert may then be output by the utility meter for communication to a central controller configured to process the alert message to identify an invalid node within the mesh network.
摘要:
Certain embodiments of the invention may include systems, methods, and apparatus for protecting power transformers. According to an example embodiment of the invention, a method is provided for protecting a power transformer from overload. The method can include receiving transformer power rating information; receiving load information from individual meters supplied by the power transformer; summing the received load information; comparing the summed load information to the received transformer power rating information; and determining spare load capacity associated with the power transformer based at least in part on the comparison.
摘要:
Systems and methods may enable customers to reserve time slots at charging stations for recharging electric vehicles. The systems and methods may include receiving, from a customer computing device associated with a customer, a reservation inquiry to access a charging station to recharge an electric vehicle; providing, to the customer computing device, a respective cost for accessing the charging station during one or more available time periods; receiving a selection from the customer computing device for at least a portion of the available time periods; and delivering, to the customer computing device, a reservation confirmation for the selected time period.
摘要:
A system for monitoring operation of an electric vehicle charging station is provided. The system includes a battery charger configured to couple to a device for supplying current to the device, a current sensor coupled to the battery charger for measuring current supplied from the battery charger to the device, the current sensor configured to generate a measured current profile based on the measured current supplied to the device, and a processor coupled to the current sensor. The processor is configured to receive the measured current profile transmitted from the current sensor, and compare the measured current profile to at least one known current profile to monitor operation of the charging station.
摘要:
A method for providing demand response information to a user of an electric vehicle is provided. The method includes receiving demand response data. A plurality of energy prices based on the demand response data is then generated by a processor, wherein each energy price is associated with a time range. The plurality of energy prices are then presented to a user of the electric vehicle.