MLGPS®

Cost-Effective Precision GPS for Geotechnical and Structural Monitoring

The Canary Systems® MLGPS® integrates a multi-function GPS module into a turnkey power control, battery charging and communications platform, specifically designed for geotechnical and structural monitoring applications. It is available in two cost-effective variants: a portable version for quick deployments, and a fixed version for permanent deployments. All MLGPS units feature a NEMA rated enclosure including battery and solar panel.

MLGPS uses differential GPS to achieve its high precision. The precision GPS receiver is able to track GPS L1 and GLONASS L1 signals. An optional upgrade allows for additional constellations such as Galileo, BeiDou-3, QZSS, and IRNSS, as well as expansion up to 555 channels. Precisions range from 2.5 mm (0.1 in) to 25 mm (1 in).

System Details

MLGPS units ship with a 32GB SD card already inserted into the MLGPS module. The SD card allows the unit to collect and store raw data and utilize Offline Mode for more than 300 days of offline storage. This is ideal for units in remote locations with unreliable Wi-Fi connectivity.

MLGPS is capable of reading its own panel temperature, humidity, and recording the status of a switch closure input. Several status LEDs are used for reporting basic system operations including power, charge, GPS status, LAN link, and LAN active. The system integrates a smart lead-acid battery charge controller for the 12V battery. MLGPS can also perform firmware updates over a network, making system updates very simple to manage.

MLSuite® Integration

MultiLogger® Suite software includes a configuration and control interface for connecting MLGPS nodes, so no additional software is necessary. Unlimited post-processing solutions can be configured in MLSuite®. The average precision of data depends on the configured averaging time, typically ranging from 15 minutes to 24 hours.

The achievable accuracy in the field depends on a number of variables, including unobstructed sky views and the availability and location of reference stations (need a fixed platform).

Note: precision is given for the horizontal plane, measurements in the vertical axis are typically less accurate.

Turnkey

Precision GPS in a turnkey power, charging and communications platform

Multi-Function

Multi-function GPS receiver tracks GPS L1 and GLONASS L1 signals

System Check

Supports internal system measurements, including voltage, temperature, and humidity

Specifications

MLGPS-P-24SMLGPS-24SMLGPS-65S
MCUMLGPSMLGPSMLGPS
Enclosure TypePolypropylenePolycarbonateSteel
Size (LxWxH)41 x 33 x 18 cm
16 x 13 x 7 in
36 x 30 x 15 cm
14 x 12 x 6 in
61 x 51 x 25 cm
24 x 20 x 10 in
Assembled Weight12.7 kg
28 lbs
13.1 kg
29 lbs
28.1 kg
62 lbs
Battery24AHr24AHr65AHr
Solar30W30W65W
ReceivingRS-232RS-232RS-232
TransmittingMLGPSMLGPSMLGPS
MCUEnclosure TypeSize (L x W x H)Assembled WeightBatterySolarReceivingTransmitting
MLGPS-P-24SMLGPSPolypropylene41 x 33 x 18 cm
16 x 13 x 7 in
12.7 kg
28 lbs
24AHr30WRS-232MLGPS
MLGPS-24SMLGPSPolycarbonate36 x 30 x 15 cm
14 x 12 x 6 in
13.1 kg
29 lbs
24Ahr30WRS-232MLGPS
MLGPS-65SMLGPSSteel61 x 51 x 25 cm
24 x 20 x 10 in24 x 20 x 10 in
28.1 kg
62 lbs
65Ahr65WRS-232MLGPS

GPS

ReceiverGPS L1, GLONASS L1
Channels14
SolutionsUnlimited post-processing solutions
Average Precisions2.5 mm, 0.1 in (24 hr solution)
10 mm, 0.4 in (6 hr solution)
20 mm, 0.8 in (1 hr solution)
25 mm, 1 in (15 m solution)

Physical

Module Dimensions7.5 x 3.5 x 1.5 in
Operating Temperature-40 to +60 °C
Operating Humidity 95% non-condensing

Memory

Storage Capacity32GB SD Card (more than 300 days
of raw GPS data)

System Power

Voltage12VDC @ 750mA max, nominal 70mA - 180mA (depending on offline mode configuration)
BatteryUp to 65AHr
Pass CurrentsUp to 2A
Input Voltage Maximum40V
Charge Voltages13.8V and 6.9V

System Measurements

Internal Temp Measurement Range-40 to +85 °C (-40 to +185 °F) at an accuracy of 0.5 °C (1 °F)
Temperature Output°C or °F
Internal Humidity Measurements Range0-100% RH, at an accuracy of +/- 4.5%
Internal Voltage Measurement0-20VDC solar panel, 0-16VDC
battery input/output at +/- 0.1VDC
accuracy (over temperature range)

Status LEDs

PowerStatus of battery voltage
ChargeStatus of charger output voltage
GPS StatusGPS link status
LAN LinkNetwork link status
LAN ActiveNetwork activity

Wired/Wireless Ethernet

ModuleXPico
PortsRS-232 (DE-9), Ethernet (RJ-45)
Speed300–921.6kbps
InterfaceEthernet 10Base-T or 100Base-TX (Auto-sensing)
StandardsWPA, WEP, ARP, UDP/IP, TCP/IP, ICMP, SNMP, AutoIP, DHCP, TFTP, Telnet, and HTTP
Security256-bit AES encryption
Range (line-of-sight)1.31km (1 mile) with directional antenna

GPS - Upgraded

Receiver GPS L1, GLONASS L1, Galileo, BeiDou-3, QZSS, IRNSS
Channels555