User's Manual

PRODUCT DESCRIPTION
System considerations and architectures
10 (84)
SKF Enlight Collect IMx-1 System
User Manual
Revision A
visualisation software, SKF @ptitude Observer, can be installed on a local server at
the customer location or as a cloud solution.
1.2 System considerations and architectures
The sensor – gateway interface is a radio system for wireless mesh networks with a
low power consumption and support for over-the-air (OTA) firmware updates. It is
specifically designed to enable reliable communication in congested wireless
environments and can identify and adapt to changes it has detected. The radio
operates on the 2.4 GHz ISM (Industrial, Scientific, Medical) band.
Whilst the wireless range will be dependent on plant topology, being a mesh system,
relay nodes can be deployed or outlying sensors can rely on the sensor mesh rather
than direct sensor/gateway communication. This assists in industrial environments
where a line of sight connection may be restricted or where sensors are situated
across wider areas. As a minimum, the system has been designed to support a
topography where there are up to 10 node jumps from the gateway to the furthest
sensor in the mesh. To provide the sensor mesh with opportunities to adapt, aim for
an installation where each node has at least 3 other nodes within wireless range.
This sensor radio interface can operate concurrently with other activity in the same
band, including the radios for:
• Wi-Fi, a network/@ptitude Observer connection, option
• WPAN IEEE 802.15.1 for app interfacing: on a mobile phone, this is
known as Bluetooth®.
The gateway – software network connection can be chosen to suit specific site
requirements. A hard-wired Ethernet connection is the default, but Wi-Fi* is also
provided as a wire free alternative.
Communication between the gateway/sensor and mobile app for on-site sensor and
gateway commissioning, is achieved over the phone’s Bluetooth Low Energy, radio
connection.
For the sensor commissioning, it is first woken from flight mode using the app and
the phone to provide an NFC (Near Field Communication) ‘tap’. For the gateway, the
app supports an initial identification by QR code rather than manual gateway
selection from the Bluetooth scan results. Using the QR code identification method
for the gateway is particularly useful where multiple gateways may be identified on
the scan.
If the equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.