Legacy Alarm Keypad Bus Coupling for Redundant Remote Monitoring
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Solution Overview
Problem
Legacy security systems lack redundant communication modes and two-way communication capabilities, making them vulnerable to single-point failures and requiring costly replacements to enable remote monitoring and control.
Innovation Solution
A communication system is added to legacy alarm systems, utilizing a keypad bus for two-way communication over multiple modes like PSTN, cellular, and broadband, allowing for remote monitoring and control without replacing existing components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a legacy alarm system uses a single telecommunications line for communication, then the system structure remains simple, but the reliability deteriorates due to single-point failure vulnerability
Solution Approach 1:
The communication system is segmented into multiple independent communication paths (first communication mode via telecommunications line, second communication mode via network interface). Each path operates independently, so failure of one does not affect the other, thereby improving reliability without requiring complete system redesign.
Solution Approach 2:
The system changes the communication parameter from a single mode to multiple modes (telecommunications line, broadband, cellular). By introducing parameter diversity in communication methods, the system achieves better reliability while managing complexity through modular integration of each communication mode.
2Adaptability or versatility
If a legacy alarm system uses one-way communication, then the device complexity remains low, but the functionality deteriorates due to lack of remote monitoring and control
Solution Approach 1:
The system implements feedback by enabling two-way communication between the alarm system and remote devices. The network interface allows data to flow not only from the alarm system to remote monitors but also from remote devices back to the alarm system, enabling remote arming, disarming, and system control.
Solution Approach 2:
The communication interface is designed with multi-functionality, supporting both traditional one-way alarm signaling and bidirectional remote control/monitoring functions. This universal design allows the same hardware infrastructure to serve multiple purposes: emergency alerting, remote monitoring, system configuration, and control.
3Reliability
If a legacy alarm system is replaced with a new system providing redundant communication modes, then the reliability improves, but the cost deteriorates due to deinstallation and reinstallation expenses
Solution Approach 1:
The system performs preliminary action by integrating multiple communication modes into the existing alarm system before any failure occurs. The hybrid architecture is established in advance, combining traditional telecommunications line communication with network-based communication (broadband, cellular), so that redundancy is already in place when needed.
Solution Approach 2:
A communication interface acts as an intermediary between the legacy alarm controller and the network infrastructure. This intermediary component bridges the old alarm system with modern network protocols, enabling enhanced functionality without requiring replacement of the core alarm system, thereby reducing implementation costs.
Data Source
AI summary
A communication system is provided that can be added to a legacy alarm system to provide a plurality of communication modes to a remote server system from the legacy alarm system and provide remote control and monitoring to a user of the system via two-way communication links. The communication system can be configured to communicate with an alarm processor of the legacy alarm system through use of a keypad bus typically used by the legacy alarm system for communications between the alarm processor and one or more keypads. Communication modes that can be provided by embodiments of the present invention can include, for example, communication over a public switched telephone network, cellular transmission, broadband transmission, wireless broadband, and the like. The communication system can monitor all configured communication modes and determine which communication mode is the best for providing communication between the alarm system and the remote server. Through these communication modes and by virtue of being coupled to the alarm processor via the keypad bus, the communication system can provide both transmission to the remote server of the status and alarm condition of the legacy alarm system as well as provide control signals from the remote server to the legacy alarm system.