Wireless Logger Networks
Wireless logger networks provide reliable, scalable, and cost-effective data acquisition. Datasheet
Wireless Logger Networks
Logger networks are composed of wireless nodes, internet gateways, and GeoCloud web services.
Nodes are wireless devices that read sensors, digitize the readings, and transmit them to an internet gateway.
Gateways receive readings sent by the nodes, reformat them for the internet, and forward them to an internet server.
GeoCloud Services on the internet process the readings, check for alarms, and update dedicated project websites to show current project status, graphs, and reports.
Advantages of Wireless Logger Networks
Flexible: Nodes are compact, self-powered, and operate autonomously. Place them anywhere on site, without concern for power supplies and cabling.
Wireless: Nodes transmit data wirelessly, eliminating the expense of installing and protecting long runs of cable. Communications are automatic and secure.
Scalable: Simply add nodes to increase monitoring capacity. No multiplexers or complicated data tables.
Simple to Configure: Nodes are matched to sensor types, simplifying wiring and settings. For example, a vibrating wire node is used to read vibrating wire sensors. The mobile configuration app displays only the relevant settings for each sensor type.
High Quality Data: Nodes filter and digitize sensor readings, eliminating the sources of cable-related data degradation, such as voltage drops and EMI.
Worldsensing LoRa Loggers and Sensors
Geo-Instruments is a Worldsensing Partner
Functions: Worldsensing loggers and sensors obtain readings at specified intervals, store the readings in memory, and transmit the readings to an internet gateway.
Multi-sensor loggers can store 72k readings per sensor. Single-sensor units can store 200k readings. Batteries provide multi-year service and can be replaced by the user.
Network Topology: Worldsensing LoRa loggers form a star network and transmit measurements directly to the gateway. A single gateway can support hundreds of nodes.
LoRa wireless technology provides excellent signal penetration and robust signal modulation to achieve reliable long range transmissions up to 9 miles.
Star Network
Tiltmeter Sensor
The tiltmeter sensor uses a triaxial MEMS accelerometer to monitor rotation. An advanced version provides event detection, increased sampling rates, and near-real-time alerts.
Laser-Tilt Sensor
The Laser-Tilt sensor provides a laser distance meter to monitor structural displacements and a tiltmeter to monitor rotation.
GNSS Meter
The GNSS meter uses GNSS satellite signals and RTK technology to resolve its spatial position with high accuracy. The RTK function requires purposing a second GNSS meter as a base station.
Vibrating Wire Logger
The vibrating wire logger monitors all types of vibrating wire sensors: piezometers, load cells, strain gauges, crackmeters, and displacement sensors. 5-sensor capacity.
Analog Logger
The analog logger monitors voltage, current, and resistive sensors, such as load cells, pressure transducers, potentiometer, Elastisense crackmeters, rain gauges, and thermistors. 4-sensor capacity.
Digital Logger
The digital logger monitors bus-based sensors, such as shape arrays, in-place inclinometers, hydrostatic level cells, digital extensometers, and water quality sensors. It supports Modbus RTU and many proprietary protocols.
Compact Vibrating Wire Logger
The vibrating wire logger monitors all types of vibrating wire sensors: piezometers, load cells, strain gauges, crackmeters, and displacement sensors. 1-sensor capacity.
Piconode Analog Logger
The piconode monitors a thermistor, a rain gauge, and 1 configurable channel input for a full-bridge, single-ended voltage, or potentiometer sensor
Internet Gateway
The cellular gateway forwards readings from the logger network to the internet. It can receive and store readings from hundreds of nodes.
Senceive Interface Nodes and Sensors
Functions: Senceive interfaces and sensors obtain readings at specified intervals and transmit them to an internet gateway.
Nodes are designed for read & send operations and can store only a few readings. Batteries provide power for 10 to 15 years and are not user replaceable.
Network Topology: Senceive Flatmesh nodes form a mesh network to transmit measurements in short-range hops from node to node until the gateway is reached.
Flatmesh networks can offer rapid reporting rates and near-real time event detection. Radio range is typically less than 300m.
Mesh Network
Tiltmeter Sensor
The tiltmeter sensor uses a triaxial MEMS accelerometer to monitor rotation.
Laser-Tilt Sensor
The Laser-Tilt sensor provides a laser distance meter to monitor structural displacements and a tiltmeter to monitor rotation.
Vibrating Wire Interface
The vibrating wire node monitors VW piezometers, load cells, strain gauges, and displacement sensors. 1-sensor and 4-sensor versions are available.
PT100 RTD Interface
Monitors temperatures in steel structures, in rail for temperature alerts, concrete structures during curing, and HVAC systems.
Millivolt Interface
The millivolt interface monitors pressure sensors (differential, absolute), foil strain gauges, torque sensors, moisture sensors, and conductivity sensors.
Internet Gateway
The cellular gateway receives readings from the nodes and forwards them to the internet. It can receive and store measurements from up to 100 nodes.