Imagine being able to wirelessly monitor and control lights; security alarms; motion sensors; thermostats and smoke detectors.
Imagine placing a wireless light control or thermostat where you want it, and not where the builder installs it.
FAW Electronics’ recently released Wireless Sensor Technology (WiST) gives you an unprecedented freedom of choice.
WiST remotely connects with off-the-shelf sensors and many other user-friendly devices, each of which communicate wirelessly with a PC, BMS (Building management System) or, for added remote monitor and control capabilities, t-mac.
Together, WiST and t-mac enable companies to monitor and control building infrastructures; sensors; systems; assets and machinery via the Internet without the pre-requisite for extensive wiring and cabling/installation costs.
Benefits.
- Low cost for the device, installation and maintenance
- Very low power consumption with long battery life
- Ease of Implementation: Simplicity allows for inherent configuration and redundancy of network device
- Replaces line-of-sight remote control infrared technology
- Robust for transmission on noisy channels
- Runs on unlicensed frequencies including global 2.4GHz band
- For sensors or actuators, WiST works in the same way as the external
RS485 Input/Output modules
Features.
- Active (transmit/receive) or sleep modes
- Reliable data transfer data rates of 250kbps at 2.4GHz (Global), 40kbps at 915MHz (North America and Australia) and 20kbps at 868MHz (Europe)
- Short Range Operation
Typically 50m to 100m according to environment
- High density opportunity for WiST nodes per Star Network
- Adjustable security levels
Secured data frames with Advanced Encryption Standard (AES)
- Simple protocol with global implementation:
A protocol code stack of 802.15.4 is estimated at ¼ of Bluetooth, and has been designed for the 868MHz band in Europe, 915MHz band in North America and Australasia, and the 2.4GHz band - now accepted in almost all countries
- Typical traffic types addressed: Periodic Data (e.g. Sensors) the sensor will awaken, check for messages, then return to sleep mode
- Intermittent Data (e.g. Light Switch) as above, or the device will only attach to the network when it communicates, making significant energy savings
- Low Latency Application (e.g. Mouse) Each device is allocated specific time durations to action without contention of latency.