ComNav T300+CGSurvey User Manual
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ComNav T300+CGSurvey User Manual

ComNav T300+CGSurvey User Manual

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U
G
SER
UIDE
C
N
T300+CGS
OM
AV
URVEY
Version 1.1
2014.07.10

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Summary of Contents for ComNav T300+CGSurvey

  • Page 1 UIDE T300+CGS URVEY Version 1.1 2014.07.10...
  • Page 2 FCC Notice ComNav T300 receivers comply with the limits for a Class B digital device, pursuant to the Part 15 of the FCC rules when it is used in the Portable Mode. Operation is subject to the following two conditions:...

  • Page 3: Table Of Contents

    2.1 Overview ..........................2 2.2 Technical Specifications ....................... 2 2.3 Product Basic Supply ......................5 2.3.1 ComNav T300 GNSS Receiver Basic Supply Kit ............5 2.3.2 Datalink Optional Supply Kit ..................6 2.3.3 Case and Pack ......................7 3 Products View ..........................9 3.1 Parts of Receiver........................
  • Page 4 ComNav T300 + CGSurvey User Guide 7 CGSurvey Basic Function ......................44 7.1 Measuring Points....................... 44 7.2 Continuous Topo ....................... 44 7.3 Staking out Points ......................45 7.4 Cogo ..........................47 7.5 Export Points to PC ......................47 7.6 Import Points to Current Job ..................... 48 Appendix A 7 Pin Lemo Definition ....................

  • Page 5: Introduction

    Your feedback about the support documentation will help us to improve the products. Please e-mail your comments to info@nprco.com. 1.3 Safety Information This manual describes ComNav T300 GNSS Receiver. Before you use T300, please make sure that you have read and understood this publication, as well as safety requirements.

  • Page 6: General Information

    ComNav T300 + CGSurvey User Guide 2 General Information 2.1 Overview The ComNav T300 GNSS Receiver provides the following features:  Ultra small and super light Size (W × H): 15.8cm × 7.5cm Weight: 0.95kg (including 2 batteries)  256 channels with simultaneously tracked satellite signals ...
  • Page 7 ComNav T300 + CGSurvey User Guide Performance Specifications  Cold start: < 50s  Warm start: < 30s  Initialization time: typically < 10s  Initialization reliability: typically > 99.9%  Signal reacquisition: < 2s Positioning Specifications  Post Processing Static Horizontal: 2.5mm + 1ppm RMS...
  • Page 8 Power consumption: 2.85 W(3 constellations)  Li-ion battery capacity: 2×1800 mAh, up to 8 hours typically  Memory: 256 MB internal memory and 100MB for static data record Software (optional)  ComNav CGSurvey field software  ComNav Compass Receiver Utility Office software (CRU)

  • Page 9: Product Basic Supply

    Basic Supply is the standard accessories for each kit. We can also provide customized supply according to your requirement. 2.3.1 ComNav T300 GNSS Receiver Basic Supply Kit ComNav T300 GNSS Receiver Basic Supply Kit contains two receivers and related accessories. With this kit, you can perform basic radio mode as described in chapter...

  • Page 10: Datalink Optional Supply Kit

    ComNav T300 + CGSurvey User Guide 2* Lemo to USB Cable 2* Whip Antenna (UHF) 1*2M Range Pole ALL STAR Controller (with battery and TF card inside) USB Data Cable of Controller Charger Double Bubbles Tribrach with High Adapter 1* 30cm Extension bar External Power Cable 2.3.2 Datalink Optional Supply Kit...

  • Page 11: Case And Pack

    Meter Cable External Power Cable 2.3.3 Case and Pack Transport Case and Carry Pack are designed for containing one ComNav T300 GNSS Receiver Basic Supply Kit. You can also order two pairs of case and pack if you’d like Item...
  • Page 12 ComNav T300 + CGSurvey User Guide Carry Pack...

  • Page 13: Products View

    ComNav T300 + CGSurvey User Guide 3 Products View 3.1 Parts of Receiver All buttons and LEDs are located on the front panel. Serial port and connectors are located on the bottom of the unit.  Front Panel The Power button function is power on and power off the receiver.
  • Page 14 ComNav T300 + CGSurvey User Guide power supply.  Battery Safety Charge and use the battery only in strict accordance with the instructions provided. WARNING – Do not damage the rechargeable Lithium-ion battery. A damaged battery can cause an explosion or fire, and can result in personal injury and/or property damage.

  • Page 15: Button And Led Operations

    ComNav T300 + CGSurvey User Guide 3.3 Button and LED Operations The LEDs on the front panel indicate receiver working status. Generally, a lit or slowly flashing indicates normal operation, and an unlit LED indicates that no operation is occurring. On the front panel, the LEDs stand for power, radio, satellite, Bluetooth, Data logging/downloading respectively.

  • Page 16: Power Supply

    ComNav T300 + CGSurvey User Guide When the receiver is connecting to Controller or PC and receiving commands. C. Internal memory is run out When the internal memory of the receiver is run out, the data logging LED and differential LED both flash 1/s simultaneously.
  • Page 17  External Power Supply The base station uses internal UHF to transmit correction data, which will increase the power consumption a lot, therefore, ComNav strongly suggest you to use external power supply (7-28 volt DC) for base station receiver. You can connect the receiver to an external power source through 7-pin Lemo port in the bottom of the receiver.

  • Page 18: Static Mode

    ComNav T300 + CGSurvey User Guide 4 Static Mode This chapter describes how to use T300 for static survey. According to the workflow of static survey, we will explain the operation in the following 5 sections--receiver configuration, default setting, static data download, convert data to Rinex format and receiver memory management.
  • Page 19 ComNav T300 + CGSurvey User Guide  Click icon to configure: 1. Sample interval: You can choose sample interval of observations. As the standard static survey use the default value 15 seconds. The maximum data rate is 20Hz, the minimum is one observation per minute.

  • Page 20: Default Receiver Settings

    ComNav T300 + CGSurvey User Guide Manual mode: data is recorded or stopped by hand; hold on the record button until the radio LED off, the Record Led flashing shows the sample interval of collecting data. Auto mode: record data continuously as long as satellites received.

  • Page 21: Field Static Data Collection

    ComNav T300 + CGSurvey User Guide BDS Mask Angle (degree) GLONASS Mask Angle (degree) GALILEO Mask Angle (degree) Data Log Manual Data Log Session Manual Port Configuration Normal Work Mode Normal Correction Port Port1 Format of Correction You can get these default receiver settings by clicking the button Default Settings.

  • Page 22: Raw Data Download

    ComNav T300 + CGSurvey User Guide  Field data collection. Go to the A1-A5 points and start the field data collection. Each section of observation please write down the station name, receiver SN, start time and end time, also antenna height.
  • Page 23 T300. 7-pin Lemo to RS232 cable can be used to link T300 to your office computer and with which CRU (Compass Receiver Utility) can perform full function (including downloading, setting and other serial port communication). But ComNav highly recommends 7-pin Lemo to USB cable (as shown below) which is designed especially for data download so that the speed is faster.
  • Page 24 ComNav T300 + CGSurvey User Guide to refresh, as shown in figure below 4. Choose the corresponding data, right click and then you can edit the data by means of Modify, Download and Delete. You also can use the corresponding shortcut keys in the shortcut bar, as shown in below.

  • Page 25: Convert To Rinex

    4.5 Convert to RINEX After downloading data on your office computer, you can convert the raw data in ComNav binary format (*.cnb) to Rinex format. Go to the function bar, click , you will see the raw data in current folder.
  • Page 26 ComNav T300 + CGSurvey User Guide Go to the shortcut bar or Antenna in right click, select the Antenna Type and Measurement. If no existing antenna type for T300, add one. Input the value of R0 (horizontal offset from measurement mark to phase center, i.e., antenna radius) and h0 (horizontal offset from measurement mark to phase center).

  • Page 27: Memory Management

    ComNav T300 + CGSurvey User Guide 4.6 Memory Management Go to the Shortcut Bar, go to , you can format the internal memory or Clear the files deleted to the recycle bin. Note: If the internal memory is run out, the receiver will stop recording raw data, and the differential LED and data logging LED will flash simultaneously at 2-second interval.

  • Page 28: Real-Time Kinematic Mode

    ComNav T300 + CGSurvey User Guide 5 Real-Time Kinematic Mode To conduct RTK (Real-Time Kinematic) survey, radio mode and CORS mode can be employed. In RTK mode, you have to install RTK survey software firstly. 5.1 Installation of CGSurvey Software If you use Windows 8 OS, Controller can be automatically recognized when you link it with your office computer.

  • Page 29: Radio Mode

    5.2 Radio Mode Radio mode is that the correction data is transmitted via radio communication in real time. ComNav T300 GNSS Receiver is equipped with internal transmitting & receiving radio, the following will explain T300 T/x + T300 R/x RTK operation.

  • Page 30: Radio Mode Setting-Up

    ComNav T300 + CGSurvey User Guide power consumption can be reached 5-6 watt, so we strongly suggest to use the external power source to supply power to base station.)  Controller kit with software installed  Tripod and tribrach 5.2.1 Radio Mode Setting-Up The hardware connection information of the radio mode is as follows: Base station components: ③T300...
  • Page 31 T300 lemo port, in the Appendix A explain the definition of T300 7 pin Lemo. ComNav Provide the standard external radio is PDL radio, the detailed operation of PDL please go to Appendix To build Bluetooth link between controller and T300, click BT Config. Then click Menu->Bluetooth Setting.
  • Page 32 ComNav T300 + CGSurvey User Guide Input the passcode ‘0000’ and click Next. Then click Advanced. Choose Serial Port and click Save. Then go to COM Ports tab, and add new outgoing port.
  • Page 33 ComNav T300 + CGSurvey User Guide Choose the right device according to SN number and click Next, then choose a port number, do not taggle the Secure Connection, click finish and tap ok, this will go to the BT setting start menu, click Done, and go to the work mode window.
  • Page 34 ComNav T300 + CGSurvey User Guide Then, modify parameters in Param tab, e.g. correction format and antenna type Tip: If you are in the coverage area of Beidou and using three constellations, please use RTCM3(BDS). If not, choose RTCM 3...
  • Page 35 ComNav T300 + CGSurvey User Guide Finally, modify the parameters in Position tab. Start base from known point, key in the point name, coordinates and antenna height, select the antenna measure type; if you import the known points to current job, click Choose and select the points.

  • Page 36: Start Rover Station By Cgsurvey

    ComNav T300 + CGSurvey User Guide Tip: after starting the base station successfully, please check the differential LED of T300. It will flash 1/s, meaning the base station is sending correction data. 5.2.3 Start Rover Station by CGSurvey Click Config->Work Mode, choose Rover and Internal radio on the top of the window.

  • Page 37: Radio Signal Enhancement

    ComNav T300 + CGSurvey User Guide 5.2.4 Radio Signal Enhancement By using internal radio transmission the RTK work distance may range from 3-4km. To extend the RTK work distance, two traditional ways are mainly used, fix transmit antenna on high place and use external radio to extend the transmit power.

  • Page 38: Pda Cors Mode

    PDA CORS mode employs the network RTK technology with no need to set up your own base stations. The correction data is transmitted from Continuously Operating reference Station via Internet in real time. ComNav T300 GNSS Receiver can log on the Internet via WIFI or GSM/GPRS.

  • Page 39: Pda Cors Mode Setting-Up

    ComNav T300 + CGSurvey User Guide 5.3.1 PDA CORS Mode Setting-Up The hardware connection information of the CORS mode is as follows: Hardware components: ①T300 ②Controller ③Range Pole Connection relation: range pole is connected to fixing socket under T300; controller is mounted on range pole by a bracket support;...
  • Page 40 PDA CORS mode, please check the differential LED of T300. It will flash, meaning the rover is receiving correction data. Tip: ComNav T300 is compatible with CMR, RTCM 2.x and RTCM 3.x, but we suggest to use RTCM3.X which includes GPS, Glonass and Beidou correction message.

  • Page 41: Start New Project And Coordinate Localization

    ComNav T300 + CGSurvey User Guide 6 Start New Project and coordinate Localization This chapter will explain how to start new job and coordinate localization functions in CGSurvey (ComNav Geodetic Survey software). 6.1 New Project Launch CGSurvey first. Then tap File->New Project, key in project name, select a suitable Datum and the right Local Time Zone which three are most important parameters for a new job.
  • Page 42 ComNav T300 + CGSurvey User Guide In Ellipse Par. Tab, you can modify the ellipsoid parameter by choosing the existing ellipsoid or input your own, and choose the mode of grid coordinates. In Projection par tab, choose a suitable projection type and input the corresponding parameters.
  • Page 43 ComNav T300 + CGSurvey User Guide Tip: To use 3 or 7 parameters, you have to login as administrator. Go to Config -> Administrator -> Login. The user name and password are admin. Do not toggle the Hor.adj and Ver.adj when start a new job. After doing Site...

  • Page 44: Localization-- Site Calibration And Reset Grid

    ComNav T300 + CGSurvey User Guide 6.2 Localization-- Site Calibration and Reset Grid 6.2.1 Site Calibration Site Calibration: Convert WGS 84 to Local Coordinate, build the earth module of local area. There are certain mathematical models between WGS84 and local coordinates, by using site calibration we can get the coordinates covert parameters, and apply all those parameters to current job.
  • Page 45 ComNav T300 + CGSurvey User Guide  After adding all the points in the list, click Cal button, the software will calibrate all the points inputted, and the” H.Resid “value (3 points appear this value) and “V.Resid” (4 points appear the value) will be available.

  • Page 46: Reset Grid Function

    ComNav T300 + CGSurvey User Guide 6.2.2 Reset Grid Function Reset Grid option is also a unique function of CGSurvey. After doing site calibration, the relationship between WGS84 and local gird coordinate is fixed, later you start your work in different area on the same project, the base station will be moved to different places, so you need 1 point to shift your RTK coordinates between different base stations.
  • Page 47 ComNav T300 + CGSurvey User Guide the below will explain how to reset grid. Measure one point (Know point) which was measured at last setting up of base station. Then go to Edit -> Element manager -> Point manager, choose the point you measure just now, and double click, you will find Reset Grid button.

  • Page 48: Cgsurvey Basic Function

    ComNav T300 + CGSurvey User Guide 7 CGSurvey Basic Function 7.1 Measuring Points Tap Survey->Measure->Measure Points, then you can measure points.  After setting all parameters, tap Mea. And the point coordinates will be saved in  the Job. 7.2 Continuous Topo...

  • Page 49: Staking Out Points

    ComNav T300 + CGSurvey User Guide The same as Measure Points function but continuously. It offers 4 different ways to measure point: Fix Time, Fix Distance, Time and Distance and Time or Distance. Tip: if you use 5Hz interval (see chapter 5.2.3), you will find it is refreshing rapidly. This function can also be used in stake out and can improve your efficiency.
  • Page 50 ComNav T300 + CGSurvey User Guide Navigate direction Stake out points (target) Current position When the receiver gets near the target: when you reached the target position  exactly, CGSurvey will make a sound to show that you are on the target position.

  • Page 51: Cogo

    ComNav T300 + CGSurvey User Guide 7.4 Cogo The function of COGO in CGSurvey is composed by Compute inverse, Compute point, Compute area, Compute azimuth, Compute rotate angle, Compute distance, Divide line and Calculator. 7.5 Export Points to PC The data can be exported out to PC after field work.

  • Page 52: Import Points To Current Job

    ComNav T300 + CGSurvey User Guide Connect the Controller to PC using the USB cable. You can find your export result  in the path: Your Controller\\\Program Files\CGSurvey 7.6 Import Points to Current Job Do the followings issues indoor:  Prepare the right format (*.txt or *.csv) coordinates files on your PC.
  • Page 53 ComNav T300 + CGSurvey User Guide...

  • Page 54: Appendix A 7 Pin Lemo Definition

    ComNav T300 + CGSurvey User Guide Appendix A 7 Pin Lemo Definition 7 pin Lemo Description Signal GND TX data out (TXD) NONE NONE Power In (+) Serial data in (RXD)

  • Page 55: Appendix B Setting Up Of Pdl

    ComNav T300 + CGSurvey User Guide Appendix B Setting up of PDL Please follow the steps below to configure PDL: 1) Connect PDL to your PC with Lemo to RS232 cable and connect the external battery with power cable. 2) Open the PDL configure software, select the serial port of PC, right click on the status bar and then tap Set Capture Method->Soft Break, just like the...
  • Page 56 ComNav T300 + CGSurvey User Guide 5) Switch to term Frequencies to configure the output frequency of PDL, you can input the values of Tx/Rx frequencies for corresponding channel according to your own need. Just like the figure below. 6) After input all the frequencies, click the button Program to save all the settings, and then you have completed the configuring, click button Exit to exit.
  • Page 57 ComNav T300 + CGSurvey User Guide PDL Default Setting Default Protocol: Transparent Default Baud rate: 38400 Default frequency of each channel: Number on PDL Frequency 460.050 461.050 462.050 463.050 464.050 465.050 466.050 467.050 468.050 469.050...

  • Page 58: Appendix C Set Controller Log On The Internet

    ComNav T300 + CGSurvey User Guide Appendix C Set Controller Log on the Internet GSM/GPRS connection: Input SIM card into your controller, and you may find Phone off on controller screen. Then click it to turn on the Phone, you will see the mobile network signal.
  • Page 59 ComNav T300 + CGSurvey User Guide Add a new modem connection at first time, enter a name for the connection as you like and choose Cellular Line (GPRS). Then click several Next and finish (no need to key in). If there is existing GPRS connections, click Manage existing connections, then long press on the existing GPRS connection and connect it.
  • Page 60 ComNav T300 + CGSurvey User Guide...

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