摘要:
Described herein are embodiments of methods, systems and devices of providing multicast functionality through an energy portal such as a meter, which reduces bandwidth required for communication between the energy portal and a server. In accordance with one aspect, a method is provided of providing multicast functionality through an energy portal, which reduces bandwidth required for communication between the energy portal and a server. In one embodiment, the method includes: receiving, over a first network, a single message, wherein the single message includes at least one device characteristic; determining, using a processor, one or more devices associated with the at least one device characteristic, wherein each of the one or more devices are connected to a second network; and transmitting the single message over the second network to each of the one or more devices associated with the at least one device characteristic, wherein the single message is transmitted individually to each of the one or more devices associated with the at least one device characteristic such that the single message is transmitted as many times as there are devices associated with the at least one device characteristic.
摘要:
Described herein are embodiments of methods and systems of using a timer based memory buffer for metrology. One embodiment of the method comprises receiving metrology data from one or more metrology sensors; writing at least part of the metrology data to a volatile memory; incrementing a write pointer to indicate the metrology data contained within the volatile memory; and repeating the above until a timer expires, then reading at least a portion of the metrology data from the volatile memory.
摘要:
An energy meter system includes an energy meter with metering circuitry that is enabled to collect metrology data relating to energy usage. Communications circuitry in the energy meter is configured to selectively communicate the metrology data to a head end server over an advanced metering infrastructure (AMI) network and a home area network (HAN).
摘要:
A device for use in transmitting a message includes a memory device including an application layer that includes a constrained application protocol and a processor coupled to the memory device. The processor is programmed to identify a message to be transmitted through a data link to at least one other device within a network, determine a quality of the data link, and determine a segment size based on the data link quality. The processor is also programmed to execute instructions within the application layer to form at least one message segment from the message such that a size of the at least one message segment is equal to the segment size. The device also includes a communication device configured to transmit the at least one message segment to the at least one other device.
摘要:
Systems and methods for use in communicating with utility devices. A utility meter receives one or more messages from one or more utility devices. Each message corresponds to a communication protocol of a plurality of communication protocols. The utility meter selects a communication protocol based on at least one message of the received messages. The utility meter communicates with at least a portion of the utility devices using the selected communication protocol.
摘要:
A system including a computer device configured to associate a tower multicast address with a first radio frequency (RF) tower; and assign the tower multicast address to each of a plurality of electronic utility meters communicating through the first RF tower.
摘要:
Embodiments of this invention include a network communications stack for a system for communicating data over a network. A media access control (MAC) layer running on a radio processor of the communications stack at least partially processes messages received from a network, i.e., before the message is passed to a host processor. Specifically, the MAC layer includes software configured to analyze a destination address contained in the message, and determine whether the destination address contained in the message matches a destination address programmed in the MAC layer.
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:
Systems for sending utility meter alerts in response to a predetermined threshold condition being met at the utility meter are disclosed. In one embodiment, the utility meter has a communications stack embedded therein, and the communications stack is configured to send an alert through a network in response to a predetermined threshold being met. In another embodiment, a server is communicatively connected to a utility meter, and the server is configured to send an alert through a network in response to a predetermined threshold being met at the utility meter. In either embodiment, the alert can comprise an email, a Short Message Service (SMS), a voice alert, or an instant message. Examples of predetermined threshold conditions that could trigger an alert include total energy consumption, peak energy consumption or total currency, e.g., dollars, spent at the location of the utility meter for a set consumption period.
摘要:
In some embodiments, images for the video conference may be white balanced and/or exposure controlled. White balancing may include dividing an image's pixels into multiple ranges according to their luminance and chrominance values. In some embodiments, blue and red analog gains may be modified to bring red and blue accumulations closer to green accumulations. In some embodiments, luminance values for an image may be adjusted by increasing or decreasing exposure. The decision whether to increase or decrease the exposure may be made by looking at statistics for luminance values of skin colored regions if there are sufficient skin colored regions on the image. Otherwise, luminance values for the entire image may be analyzed to determine whether to increase or decrease exposure.