|
|
Wireless sensor nodes
19 September 2012, Telecoms, Datacoms, Wireless, IoT
A new breed of app could soon be finding its way onto mobiles or set-top boxes, taking advantage of a new open platform for smart buildings put forward by STMicroelectronics.
The company’s GreenNet wireless sensor networking technology addresses the challenge to efficiently use energy for heating and lighting and for increasing consumer safety via monitoring of their environment.
The platform comprises self-powered nodes that can be positioned around the home for tasks such as temperature, CO (carbon monoxide) or movement sensing, relaying data wirelessly to a GreenNet dongle installed in a PC or set-top box. The data could then be communicated to a mobile device such as a smartphone or tablet via a wireless router to enable monitoring and control.
The fundamental building block is the GreenNet node, which utilises core ST technologies in energy management, silicon-based sensors and embedded wireless to create an easy-to-use network node free of wires or any need to change batteries.
The node combines a rechargeable battery, a solar cell and a 2,4 GHz radio coupled with the STM32L Cortex-M3 ultra-low-power MCU that consumes minimal power and can operate autonomously powered only by ambient light energy.
To facilitate adoption by do-it-yourselfers as well as professionals, this approach reduces smart-home installation to a simple process of placing nodes in suitable locations, and aims to encourage greater consumer use as well as adoption in offices and industrial buildings.
By using open standards, such as IPv6, the platform offers high performance and flexibility and – more importantly – allows independent developers to create easy-to-use downloadable apps for tasks such as home monitoring, security or fire safety.
ST is now demonstrating the system using a sample node that features an on-chip temperature sensor, a USB dongle and a service platform including sample app store. Operating from only 150 lux of ambient light available for six hours per day, it can relay one temperature measurement every five minutes.
It can still operate autonomously for up to six weeks in the dark as part of an effective environmental monitoring system. |
|
|
|
| Share: |
 |
Via email client |
 |
 |
 |
 |
print |
|
|
|
|
|
Further reading:
- Flexible wall-mount whip antenna
26 June 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
The Cyclops WM.95 from Taoglas is a high-efficiency (over 50%) 915 MHz flexible whip antenna with a screw-mounted wall-mount L bracket. The radiation pattern is omnidirectional in the azimuth, allowing ...
- eSPI-to-LPC bridge
26 June 2019, Avnet South Africa, Computer/Embedded Technology
Microchip Technology’s new ECE1200 bridge allows developers to implement the eSPI standard in boards with legacy LPC connectors and peripherals.
Product longevity is critical in industrial computing ...
- Bluetooth LE pass-through module
26 June 2019, Icorp Technologies, Telecoms, Datacoms, Wireless, IoT
The HM-BT4501 from HopeRF is a wireless data pass-through module based on a CMT4501 low-power Bluetooth 5.0 chip. By connecting with a microcontroller, it can be used to realise a connection and data ...
- Positioning module for autonomous driving
26 June 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
The ZED-F9K from u-blox is a high-precision multiband GNSS (global navigation satellite system) module with built-in inertial sensors. The module combines the latest generation of GNSS receiver technology, ...
- Designing certified power solutions for LED lighting
26 June 2019, Avnet South Africa, Power Electronics / Power Management
LED lighting has become the product of choice in all types of environments, from domestic to industrial through to specialist areas such as stage lighting. The combination of efficiency in terms of lumens ...
- Automotive smart hub ICs
26 June 2019, Avnet South Africa, Telecoms, Datacoms, Wireless, IoT
Microchip Technology has added new single-port USB smart hub ICs to its family of USB automotive products. The USB4912 and the USB4712 can be used to add a single port under the radio, in the centre console ...
- Wideband amplifier for instrumentation
26 June 2019, RFiber Solutions, Telecoms, Datacoms, Wireless, IoT
MACOM Technology Solutions announced a new wideband distributed amplifier with the introduction of the MAAM-011275-DIE. Offered as a bare die, this amplifier is well suited for use in test and measurement ...
- Positioning and cellular antenna
26 June 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
The Tycho MA310 antenna is a combination, small form factor GPS/GLONASS and penta-band cellular (GSM/GPRS/CDMA/ PCS/DCS/ WCDMA/UMTS) antenna to simplify AVL or fleet management antenna systems worldwide.
Made ...
- RF power doubler
26 June 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
The QPA3357 from Qorvo is a power doubler that operates from 47 to 1218 MHz. It provides an output power of 57 dBm, a gain of 28 dB, and has a noise figure of 4,5 dB. This power doubler is matched to ...
- Ka-band power amplifier
26 June 2019, RFiber Solutions, Telecoms, Datacoms, Wireless, IoT
MACOM Technology Solutions’ new MAAP-011250 is a balanced 4 W power amplifier (PA) operating from 27,5 – 30 GHz, making it well suited for SATCOM and VSAT applications.
With the addition of this new ...
- Flexible wideband antenna
26 June 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
The Taoglas FXUB64.18.0150C flexible wideband antenna has been designed to cover all working frequencies in the 600-3000 MHz spectrum, covering all cellular, 2,4 GHz Wi-Fi, ISM, NB-IoT, CAT-M1 and A-GPS ...
- High-frequency power dividers
26 June 2019, RF Design, Telecoms, Datacoms, Wireless, IoT
Pasternack has launched a new series of high-frequency power dividers targeted at 5G cellular communication, automotive radar and satellite communication applications.
The lineup consists of 17 new ...
|
|
