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El Wi-Fi Sensing transforma una red Wi-Fi convencional en un sistema de detección de movimiento. No necesita cámaras, no necesita sensores: funciona con el router que ya tienes instalado.
En Alea Soluciones hemos desarrollado junto a Huawei soluciones de Wi-Fi Sensing para ISPs. Nuestro objetivo es ayudar a los operadores a ofrecer servicios de hogar inteligente sin inversión adicional en hardware.
What Is Wi-Fi Sensing
Wi-Fi Sensing detects movement and human presence by analysing variations in the Wi-Fi signal. It does not require physical sensors or cameras to do so.
When someone moves, their body alters the wireless signal. It absorbs it, reflects it and diffracts it. The router captures those variations and software interprets them in real time.
In other words, the router is no longer just an access point; it becomes a smart home sensor.
How Wi-Fi Sensing Works
Wi-Fi Sensing analyses the Channel State Information (CSI). This parameter measures how the Wi-Fi signal propagates through space.
The process happens in four steps:
- The router continuously transmits the Wi-Fi signal
- The signal travels through the space, passing through walls and objects
- A person’s movement alters that signal
- Software analyses the CSI and generates a real-time alert
As a result, any compatible Wi-Fi network becomes a passive detection system with no blind spots and no need for a direct line of sight.
Wi-Fi Sensing vs Traditional Motion Sensors
Traditional PIR sensors require physical installation and only detect within their direct field of view. Wifi Sensing, on the other hand, covers the entire network and works through walls.
| Feature | Wi-Fi Sensing | PIR Sensor |
|---|---|---|
| Additional hardware | No | Yes |
| Coverage | Entire network | Direct line of sight |
| Installation | Via software | Physical |
| Fall detection | Yes | No |
| Deployment cost | Very low | Medium-high |
Wi-Fi Sensing Use Cases
Wi-Fi Sensing has concrete applications in both residential and professional environments. Here are the most relevant ones.
Home Security Without Cameras
The system detects intrusions or suspicious movements without installing cameras. Furthermore, the operator can activate this service remotely, with no technical visit to the property.
Care for Elderly People
Wi-Fi Sensing monitors daily activity without the user wearing any device. For that reason, it is especially useful for elderly people living alone. It detects prolonged immobility and changes in behavioural patterns.
Home Automation
The system enables automation based on people’s presence: lighting, climate control, and devices.
Energy Efficiency
By detecting which areas are occupied, the system automatically reduces energy consumption and prevents energy being wasted in empty areas.
Professional Space Monitoring
In hotels, offices and co-working spaces, Wi-Fi Sensing provides real-time occupancy data. This enables capacity management, resource optimisation and improved operational planning.
Benefits of Wi-Fi Sensing for ISPs and Operators
For ISPs, wifi sensing is an opportunity to generate recurring revenue on already-deployed infrastructure. These are its main benefits:
Higher ARPU: These services justify higher prices and improve margin per customer.
Lower churn: Users of value-added services show greater loyalty.
No hardware investment: The service is activated via software on the existing network.
Competitive advantage: No major operator offers Wi-Fi-enabled motion sensors on this scale and at this price point.
Wi-Fi Sensing and Privacy
A common question is whether Wi-Fi Sensing compromises user privacy. The answer is no.
The system does not capture images. It does not record audio either. It only works with radio signal propagation data, which indicates whether there is movement, but not who is moving or what they are doing.
Frequently Asked Questions
Does Wi-Fi Sensing require sensors or cameras? No. It works with the Wi-Fi router already installed in the home. No additional hardware is needed.
How does it detect movement through walls? The Wi-Fi signal passes through walls and changes when something moves within its coverage area. The system analyses those
Which operators can offer it? Any ISP with compatible Wi-Fi equipment can activate it via software. No infrastructure upgrade or technical visit is required.
What is the difference from a PIR sensor? A PIR sensor requires physical installation and only detects within its field of view. Wifi sensing covers the entire network, works through walls and detects more complex patterns such as falls.
The Next Step for Operators
Wi-Fi Sensing allows operators to transform connectivity into an advanced services platform. No new infrastructure. No additional hardware.
At Alea Soluciones, we work alongside Huawei to make this transition possible. If you want to know how to integrate wifi sensing into your offer as an operator, contact our team.
