Hand Lever Locking System with Sensor Feedback
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Solution Overview
Problem
Existing locking systems for windows and doors are not easy to operate or set up, lacking a simple and effective mechanism to prevent unauthorized handling and ensure secure, time-controlled operation.
Innovation Solution
A control device connected to a sensor unit and transmitter device allows data transmission and receipt of activation/deactivation commands, using a displaceable locking sleeve and actuator to interact between the handle part and fastening device, with a button for manual actuation and a method for secure communication with a control center to manage locking states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional locking system is used, then security is provided, but ease of operation deteriorates due to complex mechanisms and installation requirements
Solution Approach 1:
The locking system is divided into modular components: a locking sleeve with locking elements, a separate actuator mechanism, and a control unit. This segmentation allows each component to be optimized independently while simplifying overall operation and installation.
Solution Approach 2:
The patent replaces complex mechanical locking mechanisms with an electromechanical system. The actuator (electric motor or solenoid) substitutes for manual manipulation of complex mechanical parts, and the control unit replaces mechanical key-based authorization systems with electronic control.
2Reliability
If a secure locking mechanism is implemented, then unauthorized handling is prevented, but ease of installation deteriorates due to complex setup requirements
Solution Approach 1:
The locking sleeve is designed as a universal component that can be integrated into different window and door fitting types (tilt-and-turn, casement, etc.). The standardized interface and modular design enable easy installation across various applications without requiring custom mechanisms for each fitting type.
Solution Approach 2:
The control unit serves as an intermediary between the security authorization system and the physical locking mechanism. It handles the complex authorization logic, communication with control centers, and security protocols, while presenting a simple interface to the actuator and locking sleeve, thereby simplifying installation.
3Ease of operation
If manual operation is allowed, then usability is improved, but security deteriorates due to potential unauthorized operation
Solution Approach 1:
The locking system dynamically adjusts its state based on authorization status. The locking elements can be engaged or disengaged by the actuator based on real-time authorization signals from the control unit, which receives commands from control centers or local authorization inputs. This dynamic control allows manual operation only when authorized.
Solution Approach 2:
The control unit implements feedback mechanisms by receiving status information from sensors (e.g., window open/closed position) and sending authorization commands to the actuator. The system continuously monitors the state and adjusts locking status accordingly, ensuring security while allowing appropriate manual operation.
4Reliability
If automatic relocking is implemented, then security is enhanced, but loss of time occurs due to definable time intervals
Solution Approach 1:
The control unit is programmed to automatically re-engage the locking mechanism after a defined time interval following authorization. This periodic relocking action ensures that even if the window or door is left unattended, security is restored after the interval expires, balancing security enhancement with minimal user inconvenience.
Data Source
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AI summary
The application relates to a hand lever (1) for a window or door, wherein the hand lever (1) comprises a rotatably mounted handle part (2) and a fastening device (3) on the sash or frame, the handle part (2) is couplingable with a drive rod, a locking device effective between the handle part (2) and the fastening device (3) is provided, wherein the locking device, in the activated state, prevents a rotational movement of the handle part (2) relative to the fastening device (3), the locking device has an actuator (11) that can be activated by means of electrical energy, and the locking device is connected to a control device (13), wherein the control device (13) comprises a transmitter/receiver which communicates with a possible control center, wherein the control center communicates with each control device (13).In order to obtain an easy-to-use and easy-to-install locking system, it is provided that the control device (13) is connected to sensors (17), and wherein the transmitter device allows the transmission of the data from the sensors (17), and enables the reception of activation and deactivation commands for the actuator (11) of the control device (13), and at least one sensor (17) determines the rotational position of the handle part (2) relative to the fastening device (3).