SMART BUILDINGS
generated when windows are opened during unauthorised times.
Key benefits The wireless nature of the solution makes it ideal for retrofitting existing buildings without the disruption, cost, and complexity of running new wires. Installation can be completed without drilling through walls, routing cables, or electrical work, making it optimal for heritage buildings, occupied spaces, or any retrofit project where minimal disruption is essential. The wireless setup also eliminates
The benefits of modern window monitoring
Monitoring window status in buildings is crucial for energy efficiency, security and occupant comfort. Michal Papierz explores how wireless solar-powered wind ow monitoring systems offer an easy-to-implement solution.
Michal Papierz
EMEA operations manager (sales & marketing) at Contemporary Controls
www.ccontrols.eu E
nOcean is a wireless radio standard developed for self-powered wireless devices with ultra-low power
consumption. Compatible devices and networks draw energy from ambient resources – such as motion, light or temperature variations – thereby eliminating the need for batteries or external power supplies. With an indoor radio range of up to 30m, EnOcean devices only require minimal maintenance, and most can be installed without wiring, making them ideal for retrofit projects. BACnet (Building Automation and Control networks) is an ASHRAE, ANSI and ISO standard communication protocol developed for building automation and control systems. This open standard provides a framework to ensure interoperability between different manufacturers to enable seamless integration and centralised control of building systems – such as HVAC, lighting and security – and communication networks.
16
How the system works The window monitoring solution integrates EnOcean solar-powered window sensors with EnOcean to BACnet gateway technology to create a system that enhances energy efficiency, improves security, and ensures optimal building management. The wireless sensors, which detect and report the open or closed status of windows and doors, operate using integrated solar cells that harvest energy from ambient light (even indoor lighting), making them completely self-powered. The sensors can be easily installed using screws or adhesive tape. EnOcean to BACnet gateway is the critical link that allows building automation supervisors to seamlessly discover and integrate EnOcean devices into existing BACnet systems. The gateway translates EnOcean wireless signals into standard BACnet objects, allowing the system to be monitored and controlled through an existing building management system (BMS). When windows are detected as open while HVAC systems are running, the system can automatically adjust heating or cooling to prevent energy waste. The window status can also be monitored for security purposes, with alerts
complex wiring, reducing installation costs and time. The system can be easily reconfigured or expanded as building needs change, with sensors that can be relocated without infrastructure changes. Building managers receive real-time data on window status across the entire facility, enabling proactive management of energy usage and security concerns.
Typical applications In modern office environments, wireless window monitoring systems provide facility managers with comprehensive control over energy usage and occupant comfort. When integrated in a BMS, these sensors can automatically adjust HVAC operations when windows are opened, preventing energy waste while maintaining comfortable temperatures. During after-hours periods, the system can generate security alerts if windows are opened unexpectedly, enhancing building security without additional monitoring. These wireless sensors can be especially useful during office reconfigurations, as they can be quickly relocated without the need for rewiring or structural modifications. Hotels can leverage wireless
window sensors to enhance guest comfort while optimising operational efficiency. Room-specific climate
control can automatically adjust when balcony doors or windows are opened, preventing unnecessary heating or cooling. Maintenance staff receive notifications when windows are left open in unoccupied rooms, allowing prompt intervention to prevent energy waste. The system can also integrate with housekeeping management, providing real-time information about which rooms have open windows, helping staff prioritise their workflow during room turnover periods. Schools and universities benefit
from wireless window monitoring through improved classroom comfort and significant energy savings. The system can alert facility managers when windows remain open after hours, ensuring proper building security. During seasonal transitions, when temperature fluctuations are common, the system helps maintain consistent indoor environments by coordinating window status with HVAC operations. The maintenance- free benefits of solar-powered sensors is particularly valuable in educational settings where minimising disruption to learning environments is essential. Wireless window sensors also
offer a non-invasive solution for historical buildings that respects architectural integrity while delivering modern functionality. The system does not require drilling through walls, cable routing or modifications to windows, making it ideal for buildings where structural alterations are restricted.
The wireless nature of the solution makes it ideal for retrofitting existing buildings without disruption
Conclusion As buildings become increasingly ‘smart’, a modern window monitoring system serves as a key component of sustainable building management. The system integrates self-powered wireless sensors with standardised building automation protocols to deliver comprehensive real- time monitoring and enhanced security while improving energy efficiency. By leveraging solar- powered EnOcean sensors and BACnet gateway technology, the window monitoring system provides seamless integration, cost-effective implementation, and maintenance- free operation for both new and retrofit applications, without the constraints of traditional wired systems. ■
EIBI | SEPTEMBER 2025
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44
