A family of wireless sensors based on the (standard) Ethernet IPV6 protocol, allowing 2 directions of communication.
The modem works with a standard AT-command set. This makes application very easy.
A software platform is available for the processing of the sensor data. This is all part of the Internet of Things platform.
The basic part for the “Internet of Things” is a very low-power communucation module. The communication protocol 6LoWPan (based on IPV6) was choosen since it is most flexible and relies on existing, proven standards. Thus, the device communicates directly with a (internet) server (or some other device on the Internet), without any need for protocol converters.
The system forms a mesh network. One unit passes information to the next until the Internet router is reached.
This makes it easy to use and very versitile.
Voltage, Current, Resistance, Fysical: Pressure, Temperature, Humidity, Force, Accelleration, Vibration, Rotation, Angle, GPS, Sound, Gas/Liquids concentrations.
- Suitable for sensors and actuators
- Long battery life
- Range: >500m in open area
- Relaying of information extends the range
- Good indoor range (868-920Mhz)
The sensor/actuator can connect to other devices or servers on the wireless network or the Internet. A server platform collects the data from the various sensor devices and makes it available through a standard protocol, for use by web pages and visualization tools.
The same platform also sends data to the sensor or actuator.
Depending on location, transmitting is allowed at different frequencies:
- 868MHz: Europe, Africa, the Middle East west of the Persian Gulf including Iraq, the former Soviet Union and Mongolia
- 915MHz: USA, Greenland and some of the Eastern Pacific Islands.
- 920MHz: Japan, New Zealand, Taiwan, HonKong, Australia, Brazil
Connectivity is everything! So how do you connect? Wifi is often not available, consumes too much power or the range is insufficient.
We designed a module (the Avior) that can be used from 868 to 915/920 MHz with 2-way communication to sensors, actuators, pumps and lights. And…. over considerable distances and with excellent in-door performance.
The mesh network allows routing of messages from one unit to another, far away in the network. It does so by asking other units in between, to relay the message. Each unit has a reliable range of over 500m / 1500ft, and each unit can relay messages, even forming multiple message paths.
It’s a Modem
All this is implemented as a modem. You connect the modem to your application processor (like an Arduino) and tell it to make a connection, or to broadcast information. Easy to use AT-commands are used to control the modem over a UART. This makes for a fast implementation and poses little overhead. The UART is complemented with Flow control on character and block basis. Supported protocols are: CoAP, UDP and TFTP.