摘要:
A method, wireless mesh network and processor-readable storage medium for providing interoperability between devices that are capable of communicating at different data rates are disclosed herein. A start-of-frame delimiter token value in a synchronization header is used to indicate a data rate at which a device is capable of communicating. In certain embodiments, samples are collected around a bit transition and are used to adjust a bit timing of a receiving device to match a bit timing of a transmitting device using a coarse adjustment process and, in some embodiments, a fine adjustment process. In this way, compatibility can be maintained between new devices that can communicate at a relatively fast data rate and legacy devices that communicate at a lower data rate.
摘要:
A metering device may be configured to communicate with other devices on a plurality of metering communication networks, such as an advanced metering infrastructure (AMI) network. For example, a metering end device may be programmed or reconfigured via an AMI network. A metering end device may receive, via the AMI network, a program recipe comprising one or more configuration parameters. The program recipe may be specific to the end device and formatted according to a generic program table of the end device. The end device may decrypt and validate the program recipe. The end device may implement the decrypted program recipe to configure the end device with the one or more configuration parameters.
摘要:
Methods and apparatus are provided for routing DNP (or other) protocol messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol.
摘要:
An electricity meter capable of performing a method for limiting an electricity load in communication with the electricity meter is disclosed. The electricity meter includes at least one load control and the electricity meter has one or more predetermined time-of-use tiers. Each of the one or more predetermined time-of-use tiers has a corresponding time-of-use demand threshold. The method comprises determining a present time-of-use tier; determining a present time-of-use demand for the electricity load in the present time-of-use tier; comparing the present time-of-use demand to the time-of-use demand threshold corresponding to the present time-of-use tier; and setting the at least one load control to a de-energize mode when a de-energize condition is satisfied. The de-energize condition may include sub-conditions such as the present time-of-use demand exceeding the time-of-use demand threshold corresponding to the present time-of-use tier.
摘要:
A dynamic self-configuring system for collecting metering data comprises a collector meter. The collector meter scans for meters that are operable to directly communicate with the collector and registers such meters as level one meters. The collector transmits instructions to the level one meters to scan for meters that are operable to directly communicate with the level one meters. The collector registers meters that respond as level two meters.
摘要:
The present invention is directed to a frequency hopping spread spectrum transceiver. The transceiver includes a microcontroller; a transmitter having a voltage controlled oscillator, a direct digital synthesizer, and a power amplifier; and a receiver having an amplifier, a mixer, an IF amplifier, a demodulator, and a data slicer. When transmitting, the transmitter sends a preamble that allows the receiving device to detect the signal and lock to it to receive the data. When receiving, the receiver first scans all channels and sorts them based on a Received Signal Strength Indicator (RSSI) and then attempts to lock to the channel with the strongest RSSI value by first sampling the received signal to verify the preamble, then synchronizing to the bit edges of the received signal, then detecting the start of a Start Frame Delimiter (SFD), decoding bits to verify a valid SFD and then sampling data bits to receive the data.
摘要:
A solid state electrical meter incorporates the ability to support two-way radio, dialback telephone and CEBus personal LAN. These three communications media require different protocols to meet their respective requirements. Embedding multiple protocols within the meter controller makes the device extremely flexible for current and future applications.
摘要:
Methods and apparatus are provided for routing Internet Protocol (IP) messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol.
摘要:
Methods and apparatus are provided for routing Internet Protocol (IP) messages over a network of an advanced metering infrastructure (AMI) system that employs a different communications protocol.
摘要:
A wireless mesh network, method, and processor-readable storage medium for operating a network that has a control node that communicates with a plurality of communication nodes are disclosed. When the control node receives a broadcast message, the control node broadcasts a “clear” message that causes other communication nodes to clear their copies of the broadcast message from their message queues. By clearing redundant copies of the original broadcast message, the network can conserve bandwidth for other network traffic.