In a real smart building, lighting is more than just lighting! Lighting systems can act as a distributed network of small computers while hosting a variety of other applications to create truly intelligent building services. The concept of intelligent buildings In the process of becoming reality, inherent interoperability, basic device behavior models and value-added functions are all crucial.
In the first article, we explored the concept of lighting as a platform and the capabilities to support a wide range of building services, including lighting automation, navigation and asset tracking, etc. In this article, we explore the design of an interconnected lighting platform that supports smart buildings What are the key requirements to meet.
True Multi-Vendor Interoperability For smart lighting systems, components of the system (lights, switches, controllers, and sensors) can operate seamlessly only when they are interconnected and communicating with each other, which requires that the components have to adopt and follow common Technical standards.
To achieve true multi-vendor interoperability, we need a technology that defines all layers of the entire protocol stack, from the low-technology layer of wireless communications to the application-layer behaviors associated with a particular type of product, in order to ensure adoption The products of this technology can work together.These RF products of these products will use the same method to encode, transmit digital information through analog radio frequency medium, and adopt the correct frequency and timing rules.When the dimmer switch sends the signal " The luminaire understands and responds to wireless information that lowers the brightness level by this value.
Multi-vendor interoperability is not taken for granted because it does not happen out of thin air like magic, and it's the interoperability that can be achieved by rigorous and comprehensive specifications and test procedures provided by global standards organizations like the Bluetooth SIG Be achieved.
The Model's Magic Model is a standard software component within the device that acts as a basic building block for the device. The specific model defines how the switch turns the light on or off. Other models define the change in brightness triggered by changes in occupancy How to reflect.
The Bluetooth mesh specification now includes a collection of models that are typically used by any type of device (generically referred to as Generics), a model specifically for lighting-related devices, a scene-related model, and a model that integrates accurate time information Propagation-related models Scenes Enable advanced automation scenarios involving grouping of different types of equipment, often grouped into disparate building systems such as lighting, heating and air conditioning.
The set of models a device contains determines how the device can do it and how it interacts with other devices Figure 1 depicts the models that might exist in a light switch, a light, and related sensors. The Common Model ON / OFF Client ) Enables the switch to issue a defined message to the light or to determine its current status General ON / OFF Server Model Enables the light to respond to the switch's message.
The Light Lightness Server model enables brightness control and illuminates the HSL (Hue / Saturation / Brightness) model for color control.
What is really interesting is the Light LC Server model: LC stands for Lighting Control, a model that works with the sensor's Sensor Model, such as occupancy and ambient light sensors to achieve the first The articles mentioned in the occupation and daylight saving behavior.
The model defines the behavior of devices in the network and is crucial to creating an intelligent lighting system.Lighting as a wireless platform facility can better support automation and create truly intelligent buildings.
Bluetooth technology builds intelligent building platforms Bluetooth technology has been a reliable and secure global wireless connectivity standard for many years and today your lighting system can also be used as a wireless platform to support a range of building services with the ability to create large-scale, intelligent lighting networks Based on the Bluetooth mesh network, intelligent lighting system can provide the inherent interoperability and the same full-stack way as Bluetooth technology.Want to create a real intelligent building? In the Bluetooth mesh lighting platform!