Security System Zone Segmentation for Stay Mode Entry
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Solution Overview
Problem
Conventional security systems are vulnerable to intruders who can exploit entry and exit delays to bypass security measures, allowing unauthorized access and posing risks to occupants, as they require multiple code entries and lack flexibility in distinguishing legitimate from illegitimate entries.
Innovation Solution
A security system that allows seamless transitions between 'away' and 'stay' modes with single-action code entry, uses satellite keypads for authentication, classifies zones for immediate or delayed alarms, and employs wireless transmitters for secure entry/exit authorization, enabling secure entry and exit without compromising system security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a timer delay is used to allow entry and exit, then ease of operation is improved, but security reliability deteriorates because intruders can exploit the delay to bypass security measures
Solution Approach 1:
The security system is segmented into multiple independent zones, each with its own timer delay mechanism. When a user enters through one zone, only that specific zone's timer is activated, while other zones remain fully protected. This segmentation allows legitimate entry/exit convenience without compromising overall system security, as intruders cannot exploit one zone's delay to bypass other armed zones.
Solution Approach 2:
Different zones are assigned different security characteristics - some zones have timer delays enabled for frequent entry/exit points, while other zones remain immediately armed for high-security areas. This local differentiation allows the system to provide ease of operation where needed while maintaining maximum reliability where critical.
2Ease of operation
If the system is fully disarmed when a code is entered, then ease of operation is improved, but security reliability deteriorates because all premises are unprotected during the disarming period
Solution Approach 1:
The disarming action is segmented to affect only the specific zone where entry was detected, rather than disarming the entire system. When a user enters through a designated zone and provides a code, only that zone transitions to an unarmed state with timer delay, while all other zones remain fully armed and protected. This eliminates the security gap that occurs during full system disarming.
Solution Approach 2:
The system applies different arming states to different zones simultaneously - the entry zone is locally disarmed with timer delay for convenience, while other zones maintain full arming for security. This local quality approach allows simple code entry without creating system-wide security vulnerabilities.
3Reliability
If multiple codes are required to disarm and re-arm the system, then security reliability is improved, but ease of operation deteriorates due to the two-step process delay
Solution Approach 1:
The security control functions are segmented by zone, allowing independent control of each zone's arming state. Users can disarm individual entry zones with a single code entry, eliminating the need for sequential disarm-rearm procedures. This segmentation maintains security control over each zone while dramatically simplifying the entry procedure for users.
Solution Approach 2:
The system performs preliminary disarming of the entry zone in advance, before the user completes the entry process. When a user approaches an entry zone, the system can pre-disarm that specific zone, so the user only needs to provide a single code rather than going through multiple disarming and rearming steps. This preliminary action maintains security while speeding up the entry process.
Data Source
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AI summary
A security system is operable in a stay mode in which protected premises perimeter sensors or detectors are armed wherein a delay is provided between detection of breach of the perimeter and generating an alarm. The security system is able to authenticate a user during the delay and to restore the stay mode without generating the alarm and without disarming the protected premises perimeter sensors or detectors.