Abstract:
A data collection method using a user terminal and a data collection system. The data collection method is a method of collecting data using a user terminal and an existing mobile communication network, without using a separate dedicated communication network.
Abstract:
An apparatus for providing a building energy consumption diagnosis and a real-time commissioning processing, includes a database section configured to store building related information; a real-time commissioning section configured to diagnose energy efficiency and obstruction of the mechanical facilities using the building related information. Further, the apparatus includes a building energy consumption information analysis section configured to determine an energy consumption references and diagnose energy consumption of the buildings to be commissioned using the building related information, the real-time operation information and the measured information on the basis of the determined energy consumption reference.
Abstract:
An ultrasonic flow meter is provided. The flow meter includes a detector that transmits a signal to a fluid and receives a signal from the fluid, a memory configured to store instructions, and a processor electrically connected to the memory and configured to execute the instructions, and when the instructions are executed by the processor, the processor calculates a first flow-rate value of the fluid using a signal transmitted to the fluid and a signal transmitted from the fluid, determines whether the first flow-rate value is missing, calculates a second flow-rate value of the fluid using a physical quantity of the fluid if the first flow-rate value is missing, and replaces the missing value with the second flow value, and the physical quantity is measured by an auxiliary sensor located installed on a pipe through which the fluid flows.
Abstract:
A method and apparatus for time synchronization between a plurality of nodes in a network. The apparatus distinguishes between an optical synchronization signal for synchronization between nodes and an optical data signal for data transmission, and synchronizes nodes with each other using the optical synchronization signal.
Abstract:
An apparatus for evaluating an energy saving based on a simulation, includes: a building condition collection unit configured to collect information about a building condition; and a building energy optimization unit configured to derive an energy saving measure capable of saving the energy of the building using the building condition information. Further, the apparatus includes a simulation preprocessing unit configured to preprocess various energy-related data for executing the energy saving measure to data for a simulation; a building energy simulator configured to perform a building energy simulation using the preprocessed data; and an evaluation result display unit configured to display the amount of energy that is saved in accordance with the energy saving measure.
Abstract:
Provided are a method, an apparatus, and a parameter training method for friction loss-based differential pressure flow rate measurement. The method includes receiving pipe information on a pipe through which fluid passes from a measurement sensor installed on the pipe, calculating physical properties of the fluid based on the pipe information, obtaining a first parameter related to pressure loss of the fluid that occurs in a first passing route in the pipe, obtaining a second parameter related to pressure loss of the fluid that occurs in a second passing route in the pipe, and outputting a flow rate of the fluid based on the pipe information, the physical properties of the fluid, the first parameter, and the second parameter.
Abstract:
An output controlling apparatus of an energy storage apparatus for a reliability of an output of a photovoltaic power generation is provided. The output controlling apparatus includes a power generation amount predictor configured to predict a next day's power generation amount of a photovoltaic power generator, a target output generator configured to determine a target output based on a charging state of an energy storage apparatus used for a photovoltaic power generation, a real-time output criterion generator configured to generate an output criterion used for outputs from the photovoltaic power generator and the energy storage apparatus to a system in units of time based on the target output and the charging state of the energy storage apparatus, and a charging/discharging controller configured to control charging and discharging of the energy storage apparatus such that an output to the system follows the output criterion.