Management system for bulding equipment
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Solution Overview
Problem
Existing building equipment management systems face challenges in accurately detecting abnormal conditions due to varying response times across different equipment types and communication environments, leading to potential false alarms or delayed detection.
Innovation Solution
A management system that includes an instruction transmission unit, response reception unit, detection unit, storage unit, time measurement unit, and calculation unit, which calculates a reference time period based on actual measurement of the time interval between instruction transmission and response reception, allowing for adaptive detection of abnormal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single fixed reference time period is used for all building equipment, then the management system structure remains simple, but abnormal condition detection accuracy deteriorates due to varying equipment response times
Solution Approach 1:
The reference time period is transformed from a fixed static value to a dynamic value that adapts to different building equipment. The system automatically determines equipment-specific reference time periods based on actual response time measurements, allowing the detection threshold to dynamically adjust according to each device's characteristics while maintaining automated operation.
Solution Approach 2:
The reference time period parameter is changed from a universal fixed value to equipment-specific variable values. The system measures and determines appropriate reference time periods for different building equipment types, enabling accurate abnormal condition detection tailored to each device's response characteristics.
2Measurement precision
If equipment-specific reference time periods are determined through measurement and calculation, then abnormal condition detection accuracy improves, but the system complexity and measurement requirements increase
Solution Approach 1:
The management system performs self-configuration by automatically measuring response times and determining equipment-specific reference time periods without requiring manual intervention. The system autonomously completes the calibration process, eliminating the need for complex manual setup while achieving accurate detection thresholds.
Solution Approach 2:
The system performs preliminary measurement and determination of reference time periods during equipment initialization or commissioning phases. By establishing equipment-specific parameters in advance, the system prepares accurate detection thresholds before normal operation begins, avoiding the need for complex real-time adjustments.
3Adaptability or versatility
If manual configuration of reference time periods is performed, then adaptability to different equipment is improved, but operation time and labor requirements increase
Solution Approach 1:
The management system automatically performs the adaptation process by measuring response times and determining reference time periods for each building equipment type without requiring manual configuration. This self-service approach achieves full equipment adaptability while eliminating time-consuming manual setup operations.
Solution Approach 2:
The manual mechanical configuration process is replaced with automated electronic measurement and calculation systems. The system uses digital response time measurements and automated calculations to determine reference time periods, substituting manual operations with electronic processes that are both faster and more accurate.
Data Source
AI summary
A management system for building equipment includes several units. An instruction transmission unit transmits an instruction to at least one device. A response reception unit receives a response indicating that a state transition is made by the device in accordance with the instruction. A detection unit detects an abnormal condition in which the response is not received by the reception unit within a reference time period after transmission of the instruction. A storage unit stores the reference time period. A time measurement unit measures a length of time from when the instruction is transmitted to when the response is received. A mode setting unit sets an operating mode of the management system to a reference-time-period calculation mode. A calculation unit performs calculations to determine the reference time period based on a measurement result obtained by the measurement unit, and prompts the storage unit to store the determined reference time period.