Access Control Reader Power Management for Unoccupied Buildings
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Solution Overview
Problem
The increasing deployment of access control readers in buildings leads to significant power consumption, as these devices are typically always active, consuming power continuously, even when the building is unoccupied, resulting in substantial energy wastage.
Innovation Solution
Implementing a security system that can place interior access control readers into a power-saving state when the building is assessed to be unoccupied, by disabling the input power source, which can be quickly resumed upon detection of intrusions or when the building is no longer unoccupied, using an access controller that integrates with security alarm panels and monitors entry and exit activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If access control readers are kept always active to ensure security, then security reliability is improved, but power consumption increases significantly
Solution Approach 1:
The access control reader dynamically transitions between active and power-saving states based on real-time conditions. The reader operates in active state when security events are detected (motion, door openings, alarm conditions) and automatically transitions to power-saving state when no security events are present, optimizing the balance between security reliability and energy consumption.
Solution Approach 2:
The system implements periodic monitoring of security conditions to determine state transitions. The access control reader periodically checks for security events (motion detection, door status changes, alarm signals) and adjusts its operational state accordingly, enabling energy savings during low-activity periods while maintaining security readiness.
2Use of energy by moving object
If access control readers are placed in power-saving state to reduce energy consumption, then power consumption is reduced, but security response time may be delayed
Solution Approach 1:
The system performs preliminary checks of security conditions before transitioning to power-saving state. By verifying that no security events are currently active (no motion detected, doors are secure, no alarms pending), the system ensures that entering power-saving mode will not compromise security response time, as all necessary security monitoring is already confirmed to be in a safe state.
Solution Approach 2:
The access control reader continuously receives feedback from security sensors (motion detectors, door contacts, alarm panels) and uses this feedback to determine whether to remain active or transition to power-saving state. This feedback mechanism ensures that the reader only enters low-power mode when security conditions confirm it is safe to do so, maintaining rapid response capability when needed.
Data Source
AI summary
A system and method for energy saving on access control products is disclosed. An access controller controls access control readers, which in turn enable access to a building and/or interior areas of the building. The access controller can identify the locations of the access control readers relative to the building, such as whether the access control readers are located on the perimeter of the building for controlling access to the building, or whether the access control readers are located within the building for controlling access to interior areas of the building. The access controller can then place one or more of the access control readers into a power saving state without compromising overall building security, such as placing interior access control readers into a power saving state when the building is assessed to be unoccupied.