1. Manuals
  2. Brands
  3. Canary Systems Manuals
  4. Data Loggers
  5. MLGPS-P-24S
  6. User manual

Canary Systems MLGPS-P-24S User Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
MLGPS-P-24S
User's Guide
Hardware Version 2.0
Guide Revision F
August 2021

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MLGPS-P-24S and is the answer not in the manual?

Questions and answers

Related Manuals for Canary Systems MLGPS-P-24S

Summary of Contents for Canary Systems MLGPS-P-24S

  • Page 1 MLGPS-P-24S User's Guide Hardware Version 2.0 Guide Revision F August 2021...
  • Page 2 Copyright and Trademark months from date of shipment unless specified otherwise. This warranty does not © 2021 Canary Systems, Inc. All rights apply to any Canary Systems® products reserved. No part of the contents of this book which have been subjected to conditions may be transmitted or reproduced in any beyond the definition of “normal use”,...
  • Page 3 High-Risk Activities Release Notice Products of Canary Systems® are not fault- This is the August 2021 release (Revision F) tolerant and are not designed, manufactured of the Canary Systems® MLGPS-P-24S or intended for use as on-line control User's Guide. It applies to hardware version...
  • Page 4 ▪ MLGPS-24 User's Guide for information on the MLGPS-24 (permanent MLGPS enclosure). Technical Support Canary Systems may be contacted directly via phone or email. Ongoing support via phone, email, and virtual  meeting platforms such as Microsoft Teams and Zoom is available through the purchase of a support ...

  • Page 5: Table Of Contents

    Table of Contents Table of Contents Section 1 - Introduction ............................6 1.1 Overview ..............................6 1.2 Specifications ............................10 1.3 Theory of Operation ..........................11 1.4 Connections ............................. 13 1.5 Items List ..............................14 Section 2 - Field Deployment ........................... 15 2.1 Overview ..............................

  • Page 6: Section 1 - Introduction

    Section 1 - Introduction Section 1 - Introduction 1.1 Overview  The MLGPS integrates a multi-function GPS module into a power, charging and communications platform. (Figure 1.1 A ‒ A view of the inside of an MLGPS-24 with key components highlighted) The unit includes a multi-function Global Positioning System (GPS) receiver module, an integrated battery charger for 12V lead-acid batteries, a micro-controller for system measurements and control, a removable microSD card (for units supporting Offline Mode), and a wired/wireless Ethernet adapter module for...
  • Page 7 The standard GPS receiver is capable of tracking GPS L1 and GLONASS L1 signals. It is a single-frequency, 14-channel unit. An optional OEM7 receiver that tracks Galileo, BeiDou-3, QZSS and IRNSS signals, allowing for 555 channels is also available. Contact Canary Systems if interested in this option. Offline Mode and MicroSD Card The MLGPS unit ships with a 32GB microSD card already inserted into the MLGPS module.
  • Page 8 Section 1 - Introduction LED Status Lights (Figure 1.1 B ‒ The MLGPS module) Several status LEDs are used for reporting basic system operation. All LEDs are controlled by the microcontroller to allow for reduced power consumption by supporting "blinking" operation. Blink modes are specified for different reporting conditions.
  • Page 9 Should you encounter problems with your MLGPS, see the troubleshooting suggestions in Section 6 -  Troubleshooting. For further assistance, contact Canary Systems at the address listed in the front of this manual.

  • Page 10: Specifications

    Section 1 - Introduction 1.2 Specifications Receiver: GPS L1, GLONASS L1 Channels: 14 Solutions: Unlimited post-processing solutions Average Precisions: 24 hr solution - 2.5mm (0.1") 6 hr solution - 10mm (0.4") 1 hr solution - 20mm (0.8") 15 m solution - 25mm (1") GPS - Optional Upgrade Receiver: GPS L1, GLONASS L1, Galileo, BeiDou-3, QZSS, IRNSS Channels: 555...

  • Page 11: Theory Of Operation

     (Figure 1.3 A ‒ GPS Monitoring in Canary Systems' MLWeb software) GPS monitoring can provide benefits over many terrestrial monitoring systems that might typically be used in the same applications.
  • Page 12 Section 1 - Introduction Differential GPS is a system in which a Base Station on a stable, known point acts as a reference for the Rover (the GPS receiver attached to the monitored structure). The Base Station calculates the difference between its known location and its reported position ‒...

  • Page 13: Connections

    Section 1 - Introduction 1.4 Connections Connections to the MLGPS-P are provided at the bottom of the enclosure. (Figure 1.4 A) MLGPS-P User's Guide...

  • Page 14: Items List

    The accessories delivered along with the MLGPS-P are included in Table 1.5. The two 12AHr Lead-Acid batteries will come already mounted in the enclosure. Several items are optional. Contact Canary Systems for more information on these items and optional equipment.

  • Page 15: Section 2 - Field Deployment

    Section 2 - Field Deployment Section 2 - Field Deployment 2.1 Overview The MLGPS-P is intended as a non-permanent, portable device for short term deployments. It can be placed at a site for weeks or months as needed, then moved to a different location for the next project. There are several steps required for field deployment, summarized as follows: ▪...
  • Page 16 Section 2 - Field Deployment Power If the MLGPS is going to be installed without a ready source of power, solar panels can be used. If solar panels are to be used, be sure that the enclosure is installed in a location with enough solar exposure. The solar panel should be positioned for maximum sun exposure.

  • Page 17: Gps Antenna And Mount Setup

    Section 2 - Field Deployment 2.3 GPS Antenna and Mount Setup After selecting a site, the deployment can begin. (Figure 2.3 A ‒ An example of an MLGPS-P deployed in the field using a tripod with rock pan and solar panel) Tripod Setup 1.
  • Page 18 Section 2 - Field Deployment Installation of Antenna: The antenna is mounted on a 5/8 x 11" thread. Supplied with the MLGPS-P is a mounting kit, consisting of a 6" stainless steel rod with 5/8 x 11" thread, (2) washers, and (2) nuts. See Figure 2.3 B for an example installation.

  • Page 19: Power Supply Setup

    An AC adaptor may be used in place of the solar panel for AC powered applications. The adaptor includes a mil-spec connector to connect to the bottom of the enclosure. Use the appropriate AC power cord for connecting to a standard AC receptacle. Contact Canary Systems for 220VAC cord and plugs. 2.5 Pelican Case Setup and Cable Attachment Place the Pelican enclosure with the electronics near both the GPS antenna and the solar panel.

  • Page 20: Section 3 - Xpico Configuration

    The MLGPS-P-24S unit communicates using an xPico embedded Wi-Fi radio. This section outlines the steps for configuring the xPico radio. Hint - For older MLGPS units refer to "Step 4" of the Canary Systems Application Note #27 for details on Configuring the AirborneM2M using HyperTerminal.

  • Page 21: Connecting To The Xpico

    Section 3 - xPico Configuration 3.2 Connecting to the xPico 1. Connect the Null-Modem Cable from the xPico Serial Wi-Fi port to a computer using a Null-Modem to USB converter. 2. Open PuTTY on the computer being used to program the MLGPS Unit. Hint - The latest version of PuTTY can be downloaded from https://www.putty.org/.

  • Page 22: Configuring The Xpico

    Section 3 - xPico Configuration 3.3 Configuring the xPico Once connected via PuTTY, the most efficient way to configure the device is by modifying the pre-configured XML script provided in this section and copying and pasting it into the command terminal. Alternatively, if you are unable to access the pre-configured XML, manually entering CLI commands is also an option.
  • Page 23 Section 3 - xPico Configuration <value></value> </configitem> <configitem name "Priority"> <value>1</value> </configitem> <configitem name "Primary DNS"> <value>192.168.0.1</value> </configitem> <configitem name "Secondary DNS"> <value>&lt;None&gt;</value> </configitem> <configitem name "MSS"> <value>1460 bytes</value> </configitem> </configgroup> <configgroup name "Interface" instance "wlan0"> <configitem name "State"> <value>Enabled</value> </configitem>...
  • Page 24 Section 3 - xPico Configuration </configitem> </configgroup> <configgroup name "Line" instance "HOST_CDC_ACM"> <configitem name "Name"> <value></value> </configitem> <configitem name "State"> <value>Enabled</value> </configitem> <configitem name "Protocol"> <value>Command Line</value> </configitem> <configitem name "Gap Timer"> <value>&lt;Four Character Periods&gt;</value> </configitem> <configitem name "Threshold"> <value>56 bytes</value>...
  • Page 25 Section 3 - xPico Configuration </configgroup> <configgroup name "Tunnel Line" instance "1"> <configitem name "DTR"> <value>Continuously asserted</value> </configitem> </configgroup> <configgroup name "Tunnel Connect" instance "1"> <configitem name "Mode"> <value>Always</value> </configitem> <configitem name "Local Port"> <value>10002</value> </configitem> </configgroup> <configgroup name "Tunnel Disconnect" instance "1">...
  • Page 26 Section 3 - xPico Configuration CLI Configuration This section outlines how to program the xPico radio using CLI commands. Enable your terminal window and press <ENTER>. The following prompt should display: If the prompt does not delay then check serial port settings, connection, COM setting and cabling. 1.
  • Page 27 Section 3 - xPico Configuration MLGPS-P User's Guide...
  • Page 28 Section 3 - xPico Configuration MLGPS-P User's Guide...
  • Page 29 Section 3 - xPico Configuration 2. Cycle power on MLGPS Board. The LAN Link light should start blinking. Note: If the LAN does NOT start blinking then either the SSID or passphrase was entered incorrectly OR there is another WLAN profile which is active.
  • Page 30 Section 3 - xPico Configuration Common CLI Commands To check any setting: <command><space><tab> Show options for current level: Check wireless status: config interface wlan0 show Check network status: status wlan show Check available networks: wlan scan (from base menu) Security Suite Options: None WPA2 Key Type Options...

  • Page 31: Section 4 - Multilogger Configuration

    Section 4 - MultiLogger Configuration Section 4 - MultiLogger Configuration 4.1 Overview There are several steps required for configuring the communication and station programming within  MultiLogger to support the MLGPS. ▪ Configure Communications with MultiLogger ‒ See Section 4.2 ▪...
  • Page 32 Section 4 - MultiLogger Configuration Clicking Add on the Network Manager form opens the Add new Gateway or Device form. Select TCP/IP Socket from the list of available devices and click Accept. (Figure 4.2 B ‒ The Add new Gateway or Device form used to select a TCP/IP Socket) Note - Stations that do not have any available network connect are configured using the COM option in place of TCP/IP Socket, see Appendix C - Configuring Offline Only Stations for more information.
  • Page 33 Section 4 - MultiLogger Configuration The Network Manager will update with the new Socket communication type and node. This can be renamed by double-clicking the node in the network tree slowly. (Figure 4.2 C ‒ The new Socket added to the Gateway in MultiLogger) MLGPS-P User's Guide...
  • Page 34 Click the Add button on the Network Manager tool bar to open the Add new Gateway or Device form. Expand the Canary Systems group and select MLGPS. Click Accept. (Figure 4.2 D ‒ The Add new Gateway or Device form with the MLGPS device and Accept button highlighted) A prompt is displayed to Select Logger Configuration File.
  • Page 35 Note - Once the name is set and saved it should not be changed. However, if the name does need to be changed in the future, contact Canary Systems for assistance. Next, update the IP Address edit with the assigned IP address for the xPico installed in the MLGPS. The port is entered following the IP address, separated with a colon.

  • Page 36: Base And Rover Station Configuration

    Section 4 - MultiLogger Configuration 4.3 Base and Rover Station Configuration Differential processing relies on at least one Base Station ‒ with its exact position determined ‒ as a reference, and at least one Rover Station on the monitored structure. Multiple Base Stations can be configured as needed.
  • Page 37 Section 4 - MultiLogger Configuration (Figure 4.3 B ‒ The Logger form opened for an MLGPS rover with its toolbar highlighted) The Logger form has a toolbar with common controls: Save changes made to the Logger form. Cancel changes made to the Logger form. Start is a primary function.
  • Page 38 Section 4 - MultiLogger Configuration 4.3.1 Base Station Configuration Several steps are required for the initial configuration of a Base Station: ▪ Set the Station Type to Base ▪ Configure Offline Mode (if compatible) ▪ Configure a solution for the Base Station data (optional) ▪...
  • Page 39 Section 4 - MultiLogger Configuration Configure the Station Type The Station options allow for the selection of the Station Type and sampling rates for the station. Select Base as the Station Type. (Figure 4.3.1 B) All Base Stations have a Position Sampling Rate of 1 Second, which cannot be changed. For the Status Sampling Rate, an interval that is practical for data storage, such as fifteen minutes, should be selected.
  • Page 40 Section 4 - MultiLogger Configuration Configure a Base Station Solution A solution can be configured for the Base Station's data through the Position Solutions options, for the purpose of monitoring the Base Station's position. A Single type solution can be configured for simple averaging of positional data without the use of Differential GPS, or a Static type solution can be configured to monitor the station's position relative to another Base Station.
  • Page 41 Section 4 - MultiLogger Configuration Setting the Base Station Position A crucial component of differential processing is knowing the exact location of the Base Station: Accurate coordinates must be entered for the Base Station to be an effective point of reference. Note - For Base Stations with no available network connection, additional steps are needed.
  • Page 42 Section 4 - MultiLogger Configuration When the Average function is running, the Logger form displays the progress of the process in the top right of the form, as shown in Figure 4.3.1 I. A summary of information is shown on the GPS Monitor tab, such as the progress bar, elapsed time, time left, and current position deviation.
  • Page 43 Section 4 - MultiLogger Configuration Start Data Collection Click the Start button toto begin data collection for the station. Once the Base Station is collecting data, Rover Stations or additional Base Stations may be configured. If MultiLogger is unable to connect to the datalogger at the time the program is started, there is an option to retry when the connection becomes available.
  • Page 44 Section 4 - MultiLogger Configuration 4.3.2 Rover Station Configuration If a Base Station is in the network and has been configured, a Rover can be added, and Differential GPS can be used. Several steps are required for initial configuration of a Rover Station: ▪...
  • Page 45 Section 4 - MultiLogger Configuration Station Settings The Station options allow for the selection of the Station Type and sampling rates for the station. Select Rover as the Station Type. (Figure 4.3.2 B) It is recommended that Rover Stations keep a default value of 1 second for the Position Sampling Rate for the best solution quality, more samples per period results in a more precise solution.
  • Page 46 Section 4 - MultiLogger Configuration Configuring Rover Solutions Solutions are a method of increasing accuracy of positioning by averaging all the readings recorded within a given interval to receive a more accurate average coordinate for that period. Each solution results in average 3D positional coordinates (Easting, Northing and Height).
  • Page 47 Section 4 - MultiLogger Configuration Enter Coordinate System and Antenna Settings It is recommended during the initial configuration of the Rover Station to specify the coordinate system and the GPS antenna type in the Advanced Settings tab of the Logger form. (Figure 4.3.2 E ‒...
  • Page 48 Section 4 - MultiLogger Configuration Start Data Collection and Processing Click Save when all station configurations are completed. Then click the Start button to begin collecting and processing data. It is important to configure the Data Collection tab of MultiLogger for each configured station. See Data Collection for more on that process.
  • Page 49 Section 4 - MultiLogger Configuration 4.3.3 Data Collection After an MLGPS station has been configured, in order to begin importing data to be accessed in MLWeb, data collection for the device must be configured. Exit the Logger form to return to the Network Manager. Click on the Gateway node in the Network Configuration tree.
  • Page 50 Section 4 - MultiLogger Configuration Select the device node from the tree and then the Data Collection tab to configure the data collection settings. Be sure to check Enable Schedule and Automatic Database Import, which will enable scheduled collection of data from the device and automatic import of the collected data into the selected database. Configure the Interval for collection and make sure Resume Schedule After Delayed Retries is checked, to ensure data collection will continue even if a previously scheduled collection failed.

  • Page 51: Logger Form Features

    Section 4 - MultiLogger Configuration 4.4 Logger Form Features Within the Logger form of a configured GPS module, advanced settings allow the user to configure coordinate systems, monitor the status of the receiver's channels and internal system measurements, customize solutions and more.
  • Page 52 Section 4 - MultiLogger Configuration 4.4.2 Settings Within the Logger form, the Settings tab provides for basic configuration of the MLGPS. (Figure 4.4.2 A) MLGPS-P User's Guide...
  • Page 53 Section 4 - MultiLogger Configuration Project Settings The Project options contains datalogger information. (Figure 4.4.2 B) Configuration File ‒ The loaded configuration file for the MLGPS. This field is read-only. Configuration files can be browsed for and loaded through the icon.
  • Page 54 Section 4 - MultiLogger Configuration Station Settings The Station options allows for the selection of the Station Type, as well as sampling rates for the station data. (Figure 4.4.2 C) Station Type ‒ The station can be configured as a Base or Rover. Position Sampling Rate ‒...
  • Page 55 Section 4 - MultiLogger Configuration Offline Mode The Offline Mode options allow for configuring when and for how long to power on the stations radio (Wi-Fi). (Figure 4.4.2 F) Radio Power-On Interval - Always ON or an interval from 5 minutes to 1 day can be selected. Models that are compatible with Offline Mode collect and write raw data to the SD card 24 hours a day, 7 days a week, 365 days a year, without interruption, even if the Wi-Fi connection is lost.
  • Page 56 Section 4 - MultiLogger Configuration Position Solutions Solutions are added and configured through the Position Solutions group. Click to add a new solution. Click to remove the selected solution. (Figure 4.4.2 G) Solution Type ‒ There are three solution types: ▪...
  • Page 57 Section 4 - MultiLogger Configuration 4.4.3 Advanced Settings The Advanced Settings tab has several features that allow users to optimize settings for the station and its data. These features are Antenna Settings, Coordinate System, Rover Position Post Processing, GPS Data Archiving, and Data Collection Elements. (Figure 4.4.3 A ‒...
  • Page 58 Section 4 - MultiLogger Configuration Data Import (Figure 4.4.3 B) Four coordinate systems are available for rover stations: WGS84, Rover Initial Position, Base Station Position, and Custom Coordinate System. WGS84 ‒ WGS84 is the global reference system/geographic coordinate system used for GPS. This option sets the coordinates of the station to WGS84 coordinates.
  • Page 59 Section 4 - MultiLogger Configuration Data Collection Elements - At the bottom of the Data Import group is the Data Collection Elements button, as seen in Figure 4.4.2 B. This button displays a table of the Data Collection Elements that belong to the MLGPS device, as shown in Figure 4.4.2 C.
  • Page 60 Section 4 - MultiLogger Configuration Antenna Settings The Antenna Settings group allows for configuration of antenna and baseline offsets. (Figure 4.4.3 D ‒ The Antenna Settings options) Antenna Type - The MLGPS's antenna can be specified from the drop-down, and a pre-calculated Antenna Offset for that specific antenna make and model's determined electrical phase center will be applied.
  • Page 61 Section 4 - MultiLogger Configuration Rover Position Post Processing The user can customize the settings for the post processing of each solution. Post processing settings are not intended to be changed on a regular basis, as this may introduce offsets or shifts in the data. Settings are applied automatically dependent on the processing interval selected.
  • Page 62 Section 4 - MultiLogger Configuration 4.4.4 GPS Monitor The GPS Monitor tab provides internal GPS receiver information. It can be used for troubleshooting and checking the GPS station's health. (Figure 4.4.4 A ‒ The Monitor tab of the Logger form of MultiLogger) Position - Displays the instant position calculated by the receiver itself.
  • Page 63 Section 4 - MultiLogger Configuration Satellite Tracking Chart - Shows available satellites in the sky, their azimuth, elevation from horizon and constellation status. The chart is synchronized with the Status column of the Channel Status Tracking table at the bottom of the Monitor. The user can click a satellite in the chart and the corresponding record in the table will be selected, and vice versa.
  • Page 64 Section 4 - MultiLogger Configuration 4.4.5 Solution Charts The solution charts of the Solution Charts tab display post-processed data stored in cache. These charts show displacement relative to the initial Rover position. The solution being plotted can be selected from the drop-down highlighted in Figure 4.4.5 A: (Figure 4.4.5 A ‒...
  • Page 65 Section 4 - MultiLogger Configuration To zoom in, click and hold the left mouse button and drag the mouse down. A rectangle frame indicates the zooming area. Release the left mouse button to zoom in. To zoom out, repeat the previous steps but drag the mouse up instead of down.
  • Page 66 Section 4 - MultiLogger Configuration 4.4.6 Status Monitor The Status Monitor tab provides information on the current state of the MLGPS device, such as internal system measurements and recent readings for internal system Data Collection Elements. (Figure 4.4.6 A ‒ The Status Monitor tab of the Logger form of MultiLogger, for MLGPS device status) The Status options, shown in Figure 4.4.6 A, provides basic information on the MLGPS device and its enclosure.
  • Page 67 Section 4 - MultiLogger Configuration The Last Reading table, shown in Figure 4.4.6 C, lists the device's internal system Data Collection Elements, such as Panel_Temp and Battery_Volts, along with the timestamp of their last readings, the values of the last readings, the Elements' units and their descriptions.
  • Page 68 Section 4 - MultiLogger Configuration 4.4.7 Terminal The Terminal tab of the Logger form is used mainly as a troubleshooting tool. This is intended to be used only by advanced users who are familiar with a GPS receiver command system. Due to the asynchronous design of a GPS receiver protocol, commands should be typed in the Command drop-down at the bottom of the form and then the Send Command button should be clicked.
  • Page 69 Section 4 - MultiLogger Configuration Table 4.4.7 A outlines a list of terminal commands: Command Return MLGPS_BAT Get battery voltage MLGPS_CHG Get charge voltage MLGPS_CLB Calibrate current sensor <PORT> Defines the active interface where: Switches control to OEMSTAR’s port 1 and turns off the power of the SERIAL - MLGPS_COM M2M module (adaptor)
  • Page 70 Section 4 - MultiLogger Configuration 4.4.8 MLGPS Maintenance The Maintenance Menu is available at the top of the Logger form, as shown in Figure 4.4.8 A. It contains three functions: Reprocess Solution, Reset GPS Receiver and Update Firmware. (Figure 4.4.8 A ‒ The Maintenance Menu expanded) Reprocess Solution ‒...
  • Page 71 Section 4 - MultiLogger Configuration Reset GPS Receiver ‒ A remote reset function. Resets the MLGPS board as cycling power or clicking the Reset button on the module would do. All internal configuration settings remain intact. During boot time (approximately 30 seconds), no communication with the device can be performed. Transfer Raw Files –...

  • Page 72: Section 5 - Using Microsd Card

    Section 5 - Using MicroSD Card Section 5 - Using MicroSD Card The MLGPS unit is shipped with a removeable microSD card already inserted for use with Offline Mode. Offline Mode improves data collection with virtually no gaps, even with an unreliable or no Wi-Fi connection. The 32GB SD card can hold over 1200 days' worth of raw GPS data.
  • Page 73 Section 5 - Using MicroSD Card The files stored on the microSD card are created and stored every 5 minutes. The card should be removed as close to a 5-minute interval as possible to minimize any loss of data. To avoid gaps in data, make sure a second microSD card is available to insert as soon as the current one is removed.
  • Page 74 Section 5 - Using MicroSD Card 5.1.1 Labeling MicroSD Card When switching the microSD cards make sure the cards are labeled according to the Station name, as defined in MultiLogger, and the device Serial Number, listed in MultiLogger and on the MLGPS Unit’s label. This is important to keep cards organized.

  • Page 75: Retrieving Data From Microsd Card

    Time) and one additional day should be selected to ensure all data is transferred. Hint - Files with a timestamp preceding that of the last collection will not be imported. If the microSD card includes older files that need to be imported contact Canary Systems. (Figure 5.2 B) Processing of the solutions runs automatically when all files are available.

  • Page 76: Section 6 - Troubleshooting

    If common operations like Update or Collect fail regularly, or the Monitor mode is very slow to start, it is likely  that the signal strength is inadequate for the location and antenna being used. Contact Canary Systems recommendations on antenna options that are compatible with the xPico.

  • Page 77: Appendix A - Xpico Connection Via Browser

    Appendix A - xPico Connection Via Browser Appendix A - xPico Connection Via Browser Connection over a web browser requires the user to connect to the xPico module Wi-Fi adapter through their Wi-Fi settings. The values after “xPico240_” represent the last 6 values of the device's serial number. (Figure A 1) 1.
  • Page 78 Appendix A - xPico Connection Via Browser 2. Once connecting using the browser interface, click QuickConnect at the top left of the window to display a list of all networks visible to the xPico module. (Figure A 2) 3. From the list provided, select the designated network to open its WLAN profile. MLGPS-P User's Guide...
  • Page 79 Appendix A - xPico Connection Via Browser 4. Enter the correct WPA password and click Apply. IT departments on site will provide: ▪ Desired Network IP address for assignment ▪ Network Default Gateway ▪ WPA Passphrase 5. Click Yes on the message box that opens after clicking Apply to continue. (Figure A 3) MLGPS-P User's Guide...
  • Page 80 Appendix A - xPico Connection Via Browser 6. Review the additional network settings and make any necessary updates. When everything is correctly configured for the desired network, click Submit. WARNING - After submitting your results, it is important to NOT reboot the device, or the connection will be lost. (Figure A 4) MLGPS-P User's Guide...
  • Page 81 Appendix A - xPico Connection Via Browser 7. Check that the Network Configurations are correct by navigating to the Network tab and selecting wlan0 and Configuration. (Figure A 5) MLGPS-P User's Guide...
  • Page 82 Appendix A - xPico Connection Via Browser 8. Network Connections should be as follows: ▪ State: Enabled ▪ DHCP Client: Disabled ▪ IP Address: Insert given IP from IT department ▪ Default Gateway: Insert given Gateway from IT department ▪ IPv6 State: Disable (Figure A 6) MLGPS-P User's Guide...
  • Page 83 Appendix A - xPico Connection Via Browser 8. After verifying the Network Configurations, the MLGPS unit can be rebooted to put these changes into effect. This can be done through the web interface. a. On the web interface, select the Device button on the side panel and choose [Reboot]. b.

  • Page 84: Appendix B - Allow Communication With Lte Gateway

    Appendix B - Allow Communication with LTE Gateway Appendix B - Allow Communication with LTE Gateway To allow other communication devices, such as an LTE cellular modem, to provide communications to the MLGPS module, the internal Wi-Fi adaptor must be turned off and the GPS RS-232 port must be enabled for communications.
  • Page 85 10. Using a serial cable, connect the AirLink RV50 radio to the MLGPS using the same GPS RS-232 port. For additional information on configuring a Raven wireless device see the Canary Systems Application Note 29, Configuring the Sierra Wireless AirLink RV50 using ACEmanager.

  • Page 86: Appendix C - Configuring Offline Only Stations

    Appendix C - Configuring Offline Only Stations Appendix C - Configuring Offline Only Stations In the event a station has no available network configuration; additional steps are needed during initial configuration. C.1 Configuring Communications for Offline Only Stations If configuring an MLGPS station that will run entirely offline, it can be configured using a COM rather than the TCP/IP Socket.
  • Page 87 Appendix C - Configuring Offline Only Stations Expand the Canary Systems group and select MLGPS. Click Accept. (Figure C 3) A prompt is displayed to Select Logger Configuration File. Select Assign a new Configuration File and click Accept. (Figure C 4)
  • Page 88 Note - Once the name is set and saved it should not be changed. However, if the name does need to be changed in the future, contact Canary Systems for assistance. Ensure the correct Baud Rate is selected, 115200 for the MLGPS, and Save.

  • Page 89: Determining Base Station Position For Offline Only Stations

    Appendix C - Configuring Offline Only Stations C.2 Determining Base Station Position for Offline Only Stations For a Base Station that has no network access, and the position is unknown, averaging is required as outlined under "Setting the Base Station Position" in 4.3.1 Base Station Configuration. However, additional steps are required to set the Base Station Position as there is no network connection.
  • Page 90 Appendix C - Configuring Offline Only Stations C.3 Determining Rover Station Position for Offline Only Stations For a Rover Station that has no network access, and the position is unknown, additional steps must be taken before configuring the station in MultiLogger on the server. 1.

  • Page 91: Glossary

    Glossary Glossary Almanac ‒ Broadcast by each satellite, Almanac data provides information on the state of the constellation, as well as specific course/orbital parameters for each satellite within the constellation. This information helps receivers predict the approximate location of nearby satellites, aiding their search for a signal. This information is not highly precise, and is only valid for an unspecified period of time, generally several months.
  • Page 92 Glossary Carrier Phase Measurement ‒ GNSS positioning is possible due to trilateration, a geometric method of determining position by measuring distances to points with known coordinates. The distances used in the case of GNSS positioning are the distances between the receiver and the satellites, and the known points are the satellites (they are known points because their positions in space, or orbital parameters, are broadcast in the NAV message).
  • Page 93 Glossary Differential GPS (DGPS) ‒ A method of using multiple GNSS receivers, with at least one as a reference with known coordinates, to eliminate shared parameters that cause errors. For example, a Rover station is the GNSS receiver attached to the structure being monitored. Its exact coordinates are not known; they are being calculated.
  • Page 94 Glossary Elevation Mask ‒ Because satellites with low Elevations can have low signal to noise ratios and more multipath errors, Elevation Mask allows for the "masking" of satellites below a set Elevation. This means that the satellites with an Elevation below the Elevation Mask setting will not be used in positioning. The default is 5.
  • Page 95 Glossary Integer Ambiguity ‒ The integer number of wave cycles of the carrier signal is necessary to calculate the carrier phase measurement. Essentially, when a receiver locks onto a carrier signal, it begins to count the integer number of wave cycles, so that the carrier phase measurement can be calculated by multiplying the known wavelength by the number of cycles to determine distance.
  • Page 96 Glossary Netmask ‒ A number of bits are taken from the IP address to be assigned for the host part. The Netmask defines this number of bits. Observables ‒ Signals whose measurement yields the distance between the receiver and satellite. There are two: pseudorange and carrier phase measurement.
  • Page 97 Glossary Receiver Noise ‒ Receiver noise is noise, either from the receiver's electronics or from the environment, that is picked up by the antenna and causes errors in positioning. Thermal noise, antenna noise and temperature, electromagnetic radiation and cable loss can all contribute to receiver noise. Receiver noise cannot be mitigated by Differential GPS, and has more effect on the accuracy of the pseudorange than on the carrier phase measurement.
  • Page 98 Glossary Time Delay ‒ The GNSS receiver has a clock. When it receives the satellite's signal, with the time signal, it compares the time the signal was broadcast by the satellite to the time that it received the signal according to its own clock.

Table of Contents