Model EWN-01D wireless node is designed to expand the data collection possibilities from digital sensors via wireless RF network, eliminating the need for running lengthy cables. These are especially useful at locations where sensors are distributed over wide areas and running cable lengths to long distances can be tricky and /or at locations where construction activity can disrupt the running sensor cables.
The wireless digital node is a highly reliable integrated system which is capable of taking readings from any digital sensor, like in-place inclinometer sensor chain with SDI-12 output, and reporting measurements through long range radio frequency wireless communication network to the Gateway. A cloud-hosted data management and configuration software is used to manage the network. The configuration is done with an easy to use smartphone application that comes free with the system. Gateway uploads the collected sensor data to the central/cloud server.
Drishti, a cloud-hosted data management software is available to process and manage the huge data collected at project site. The data is accessible 24 x 7, in meaningful visual formats, to all the related authorities. The system can generate automatic reports and provide automated alerts over SMS or email for any reading crossing the pre-defined alert levels.
| DIGITAL NODE | |
| Digital Inputs | Following digital communication supported sensors
RS232 serial port RS485 full/half duplex serial port 2 SDI-12 bidirectional ports or programmable interrupt driven GPIO |
| Sensor address space | 255 individually addressable sensors (limited by current consumption per sensor) |
| Sensor power supply options | 5V / 12V / 24V DC
@100 mA when using batteries; @200 mA when using an external power supply |
| Operating temperature | -40°C to 80°C |
| Internal memory | Up to 500,000 readings with time |
| Supply Voltage | 2.7 V to 5.5 V |
| RADIO FREQUENCY | |
| Radio bands | Sub-1 GHz band – complies with unlicensed ISM band specifications in most countries |
| Link data speed | 625 bps – 2.5 kbps variable bitrate |
| Data security | AES128 encrypted end to end data |
GDS has a variety of instruments for hire, these Instruments, Readouts and Dataloggers are available for product hire on a short-term (fortnightly) or long-term (monthly) basis including, but not limited to, the following:
