Energy Harvesting Wireless Technology for Building Automation

There are a lot of wireless technologies used today for a wide range of industries and applications. One of these wireless technologies is used mainly in building automation systems and smart homes. It is an energy harvesting wireless technology that uses no wires, no batteries, and no limits.

What do you call this energy harvesting wireless technology for building automation?

EnOcean Technology

Further Discussion:

EnOcean Technology comprises of miniaturized energy harvesting devices with ultra-low power radio technology resulting to maintenance-free wireless sensor solutions. EnOcean is a worldwide radio standard for batteryless switches and sensors. It enables maximum flexibility, comfort and security in a building. This proven technology is energy efficient and saves time as well as costs. Conventional wiring is expensive and inflexible. Even battery-driven wireless solutions have many downsides. They cause pollution and require regular replacement. The EnOcean technology, on the other hand, fulfills all the requirements of modern house technology in retrofits or newly constructed buildings.

EnOcean links tiny energy converters with particularly reliable wireless technology. It is the basis for interoperable products and radio sensor networks which work for decades without maintenance. The intelligent wireless switches and sensors obtain their energy from movement, light or temperature differences. This harvested energy is sufficient enough to send sensor data within a building. Therefore, control the lighting, blinds or room temperature without a single meter of cable. EnOcean is a flexible, cost-effective and energy-efficient solution for sustainable buildings such as flats, single or semi-detached houses, prefabs, and commercial buildings.

Self-Powered Wireless Devices for Smart Buildings
Self-Powered Wireless Devices for Smart Buildings


The introduction to building technology is easy.

For residential buildings, just connect a transmitter with a receiver. This basic installation can be easily combined with existing systems and can be extended with a tablet, a video camera, or with your mobile phone in order to monitor and control everything whilst on the road. The EnOcean system is very flexible and also saves energy and cost. Starting with a single solution, for example, retrofitting an extra freely positionable switch near a bunk bed, on glass, in the bathroom, and ending in central control for lighting and blinds or individual heating control with window monitoring. The intelligent building technology from EnOcean provides more comfort through central functions, zone regulations, and individual light scenes. EnOcean also offers more security, for example, through the monitoring of windows, alert messages send to your phone, or through present simulation.

In a commercial building, EnOcean can be easily combined with other existing systems such as KNX, BACnet, LON, TCP/IP, EEBus, or Modbus. They provide maximum energy efficiency and comfort through the building automation. Planning office spaces or necessary changes during the building phase is easy with batteryless, wireless technology. This leads to lower operating costs both during changes in room structure and when changing tenants.

Wireless Range Planning

Under optimum conditions, EnOcean wireless has a range of 30 meters inside a building. In practice, however, it may be advisable to plan with approximately 15 meters as the penetration angle absorbing materials or other sources of interference can reduce the radio transmission. This transmission takes the form of an ellipse, that is why visual contact alone isn’t enough for maximum range. Absorption can increase depending on the material of the walls or furniture. From low absorption of wood, plaster and bricks to higher absorption for concrete or metal. Solar-based sensors such as occupancy sensors, window contacts, or room temperature sensors can use indoor light to activate and charge. The energy of a completely charged device last for 3-4 days in complete darkness.

In residential buildings, the wireless range can be increased with repeaters. Many wireless receivers offer an integrated repeater function.

In commercial buildings, wireless range planning takes place in just two steps.

Step 1: Mark fire protection walls, lavatories, staircases, elevator shafts and supply areas in the building plan.

Step 2: Draw in the receiving radii of 10-15 meters in order to position the sensors. The best place would be the hallways and select the centre of the circle for the receiver.


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