Une mise à niveau gratuite permettrait aux ampoules Philips Hue et autres ampoules Zigbee d'agir comme des détecteurs de mouvement.

The HTML tags are present in the original text, so I will include them in the translation: "The intelligent Philips Hue and other Zigbee-based smart lights could soon work as motion sensors without additional hardware. This would mean that they could turn on automatically when someone enters a room without using a separate motion sensor.

Even better, the new feature is planned to be added to existing Hue bulbs through a Hue Bridge update...

Like many of you, I currently use motion sensors to automatically turn on certain Philips Hue bulbs and LED strips, or to activate scenes. The lights in my kitchen and bathroom turn on automatically when someone enters the room, and turn off again if no activity is detected for two minutes.

A new approach to movement detection could make additional equipment unnecessary. The bubbles seem to be designed to acquire the necessary capabilities to detect motion themselves.

The secret is the technology that can detect interference in radio signals created by someone entering a room. This interference can then be used as a trigger to control electrical bulbs in the same way as existing motion sensors.

A version of this technology, known as Sensify, has been developed by the wireless infrastructure company Ivani. Another version was developed by the Connectivity Standards Alliance – the industry group responsible for Zigbee – which they call "Sensing Ambient".

Since it relies on radio signal interference between devices, you need several Zigbee devices in a room for it to work.

For Sensify on Zigbee, these detection zones include the area contained within a group of 3 to 4 devices. These detection zones effectively create virtual sensors within the network, providing occupancy data that can be used for a wide range of features.

For example, several Zigbee devices grouped in a room can provide data granularity at the level of the room for occupancy data.

Ivani says that its partner companies can also use this type of motion detection for intelligent security products.

Convenience triggers are designed for quick response applications, such as turning on lights when entering a room. These have an average response time typically under 500 ms, with 90% of triggers occurring within 1 second after entering a detection zone.

Security triggers are designed for high-trust applications like home security. These have an average response time typically between one and two seconds; however, a low false positive rate is also important. It should also be possible to adjust the sensitivity of motion detection.

No specific timeline is known at this time, but it seems we don't have to wait too long.

Figure: CSA