Mortise Lock With Switchable Sensor Interface for Retrofit Cabling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mortise locks with multiple electronic components face significant cabling challenges due to increased wiring efforts and high installation costs, especially when retrofitting into existing systems with limited on-site cabling.
Innovation Solution
A mortise lock design with a selector switch and interface allowing connection of a multi-core cable to fewer connection poles than sensors, enabling flexible selection of sensors for wiring and supporting both digital bus and discrete operation, reducing cabling effort and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors are integrated into the lock housing for electronic monitoring and detection, then the monitoring capability and functionality are improved, but the cabling effort and installation complexity increase significantly
Solution Approach 1:
The lock interface is designed with multi-functionality to support both discrete sensor connections and digital bus communication protocols. The same physical interface and connection poles can operate in different modes (discrete or digital), allowing the lock to adapt to various installation scenarios without requiring separate cabling infrastructure for each communication type.
Solution Approach 2:
The system provides dynamic configurability through switchable operation modes. The lock can dynamically switch between discrete operation mode (for applications requiring individual sensor connections) and digital bus operation mode (for networked environments), allowing the cabling requirements to adapt to the specific application needs rather than requiring maximum cabling capacity for all scenarios.
2Adaptability or versatility
If a large number of sensors are provided in the lock, then the monitoring coverage is improved, but the number of required connection poles and cable cores increases
Solution Approach 1:
The connection poles serve multiple functions depending on the operation mode. In digital bus mode, fewer connection poles are required as multiple sensors can be connected through the bus protocol. In discrete mode, the same connection poles can be reconfigured to support individual sensor connections. This multi-functionality allows the interface to support comprehensive sensor coverage without requiring a proportional increase in connection poles.
Solution Approach 2:
The system changes its operational parameters based on the selected mode. The interface can switch between discrete parameter set (individual sensor connections) and digital bus parameter set (networked communication). This parameter change allows the same physical interface to support different numbers of sensors effectively, reducing the required number of connection poles while maintaining comprehensive monitoring capability.
3Ease of manufacture
If the lock is designed with fixed cabling requirements for all sensors, then the manufacturing simplicity is maintained, but the retrofitting flexibility and ease of installation are reduced
Solution Approach 1:
The lock incorporates dynamic configurability that allows it to adapt to different installation scenarios. The switchable operation modes enable the lock to be configured for discrete or digital bus operation based on the existing infrastructure at the installation site. This dynamic feature maintains manufacturing simplicity while significantly improving retrofitting flexibility, as the lock can be installed in environments with limited cabling infrastructure.
Solution Approach 2:
The interface design provides universality by supporting multiple operation modes and communication protocols through the same physical infrastructure. This allows the lock to be manufactured with a standardized interface that can accommodate various installation scenarios, including retrofits into existing systems with limited cabling. The multi-functional interface eliminates the need for different hardware versions for different installation types.
4Adaptability or versatility
If discrete operation mode is used for connecting sensors, then the compatibility with existing simple systems is improved, but the cabling effort and installation costs increase
Solution Approach 1:
The lock provides dynamic mode selection that allows switching between discrete operation and digital bus operation. This enables the system to adapt to the existing infrastructure at the installation site. If the site has simple existing systems with limited cabling, the lock can operate in discrete mode for compatibility. If digital infrastructure is available, the lock can switch to digital bus mode to reduce cabling effort and installation costs.
Solution Approach 2:
The operational parameters of the interface can be changed based on the selected mode. In discrete mode, the interface is configured for individual sensor connections with appropriate electrical parameters. In digital bus mode, the parameters are adjusted for networked communication. This parameter flexibility allows the same hardware to optimize for either compatibility with simple existing systems or reduction of installation complexity, depending on the application requirements.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A mortise lock (2) for a door (11) is proposed, comprising a lock housing (21) and a faceplate (22), which has a locking element (24, 25) which can be actuated via a lock nut (23) for locking the door (11) and a set S of sensors. In order to reduce the effort required for installing the lock (2), it is proposed that the lock (2) have an interface (82) with a set A of connection poles to which a multi-core cable (18) can be connected, the number A of connection poles being smaller than the set S of sensors, and that a selector switch (84) is arranged in or on the lock housing (21), by means of which selector switch it is possible to set which of the sensors from the set S are connected to the connection poles.