Wide Area Building Management System Load Distribution
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Solution Overview
Problem
Existing wide area management devices face challenges in efficiently managing power consumption across multiple buildings, leading to increased processing loads and communication traffic, making it difficult to generate and transmit control commands effectively.
Innovation Solution
A wide area management system that distributes the process of controlling power consumption among both the wide area management device and building management devices, using management tables to specify control commands and event programs, and includes a mechanism for collecting and transmitting power information to optimize command execution and reduce communication traffic.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the wide area management device intensively manages power consumption of all buildings, then power consumption control is achieved, but the processing load becomes too high when the number of buildings is large
Solution Approach 1:
The patent divides the building management system into hierarchical segments: wide area management devices at upper levels and building management devices at lower levels. Each building management device independently manages power consumption for its own building, while wide area management devices oversee multiple buildings. This segmentation distributes the processing load, preventing any single device from becoming overwhelmed when managing large numbers of buildings.
2Loss of energy
If individual control commands are transmitted to all building management devices, then precise power control is achieved, but communication traffic increases significantly
Solution Approach 1:
The patent merges the functions of multiple building management devices into representative building management devices that can handle commands for multiple buildings. Instead of transmitting separate commands to each building management device, the system transmits unified commands to representative devices, which then distribute them to subordinate devices. This merging approach maintains precise power control while significantly reducing communication traffic.
3Adaptability or versatility
If the number of event programs is increased to manage more buildings, then comprehensive control is achieved, but event program management becomes difficult
Solution Approach 1:
The patent uses representative building management devices as templates or copies that can represent multiple actual building management devices. Instead of creating unique event programs for each building, the system creates event programs at the representative device level, which are then replicated and applied to multiple subordinate building management devices. This copying approach maintains comprehensive control coverage while simplifying event program management.
Data Source
AI summary
An increase in communication traffic at the time of transmission of commands of controlling power consumption of individual buildings can be suppressed so as to be low. A wide area management system includes a wide area management device that includes a database that stores a command table and a transmission unit that transmits a control command to each uppermost-level building management device and building management devices, each of which includes a database that stores a management table and a building-associated correspondence table, a transfer unit where, in a case where a reception unit receives the control command, specifies lower-level building management devices by referring to the management table and transfers the received control command to each of the specified building management devices, an event program extraction unit that extracts an event program corresponding to the control command from a building-associated correspondence table, and an event program execution unit that executes the extracted event program to control power consumption of the buildings.