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GNSS RECEIVER
USER Guide
Version 1.00
TI Asahi Co., Ltd.
I nternational Sales Department
4-3-4,Ueno,Iwatsuki-ku,Saitama-shi
Saitama 339-0073 Japan
Tel.: +81-48-793-0118
Fax : +81-48-793-0128
E-mail :
international@tiasahi.com

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Summary of Contents for Pentax GX2

  • Page 1 GNSS RECEIVER USER Guide Version 1.00 TI Asahi Co., Ltd. I nternational Sales Department 4-3-4,Ueno,Iwatsuki-ku,Saitama-shi Saitama 339-0073 Japan Tel.: +81-48-793-0118 Fax : +81-48-793-0128 E-mail : international@tiasahi.com...
  • Page 2 Revision History Revisions Revision History Revision Date V1.0 Initial release 2024 - 09 - 30...
  • Page 3 GX2 User Guide © 2024 TI Asahi Co., Ltd. All rights reserved. PENTAX, the PENTAX logo are trademarks registered in the U.S. and other countries. No part of this document may be copied, used or reproduced without the prior written permission of TI Asahi.
  • Page 4 Contents 1. GX2 Overview ......................1 1.1 Appearance ....................... 1 1.2 Display Screen ....................2 1.3 Power On And Off .................... 3 1.4 Insert A SIM Card ..................... 3 1.5 Charging ......................5 1.6 Battery Installation And Removal ..............5 2.
  • Page 5 3.6 Static Mode Setting ..................36 3.7 Point Survey ....................36 3.8 Tilt Survey ...................... 43 3.9 Laser Survey (Only the GX2-L supports this feature) ........44 3.10 Photogrammetry (Only the GX2-C supports this feature, communication mode needs to be selected as WIFI) ..............46 3.11 Point Stakeout ....................
  • Page 6 1. GX2 Overview GX2 is a multi-functional GNSS receiver that integrates AR, Laser and Image Surveying (IS) modules. It has a built-in high-precision positioning module, which supports the tracking of satellite signals at all frequency points. The device is completely equipped with 4G Full-netcom, Bluetooth, WIFI, and a built-in 1.5W data transmission radio.
  • Page 7 (1.5W) options. Professional ultra-wide-angle camera which provides AR Camera high-definition real-scene stakeout. Millimeter-level laser ranging module, integrated with Laser high-precision inertial navigation, to achieve measurement (Only for GX2-L device) anytime, anywhere. 1/2.6-inch high-definition wide-angle camera, integrated IS Camera with high-precision inertial...
  • Page 8 Display Screen Display information Details Mode Rover/Base/Static Data link Bluetooth/Built-in Network/Built-in Radio GNSS status Positioning status,Number of used satellites,Time, Latitude, Longitude, Ellipsoid height. 1.3 Power On And Off Power on: Press and hold the power button for 3 seconds until the buzzer "beeps". Release the button, the device starts to power on, and the panel light flashes.
  • Page 9 Figure 1.4-1 Figure 1.4-2 2.Slide the SIM card tray in the indicated direction of the arrow to open it as shown as Figure 1.4-3.Insert the SIM card into the card slot according to the direction indicated on the case as shown as Figure 1.4-4. Figure 1.4-3 Figure 1.4-4 3.Slide the SIM card tray in the direction of the arrow to secure it as shown as...
  • Page 10 Figure 1.4-8 1.5 Charging The GX2 is equipped with two lithium-ion batteries, and users can charge the batteries using a standard charger. The charger dock supports charging two batteries simultaneously, and it has 3 indicator lights: a power indicator, a charger bay 1 indicator, and a charger bay 2 indicator.
  • Page 11 Figure 1.6-1 Figure 1.6-2 2. Swipe right on the battery to lock it in place as shown as Figure 1.6-3.Insert the battery cover into the device housing as shown as Figure 1.6-4.、 Figure 1.6-3 Figure 1.6-4...
  • Page 12 2. WEB UI The device WIFI can be used as a hotspot, and a PC, smartphone or tablet can connect to the hotspot. After connecting to the hotspot, you can log in to the device's Web UI to manage the working status, change the working mode, modify basic settings, download raw data, update firmware, and register the device.
  • Page 13 Figure 2.1 Figure 2.2 2.2 Info The info mainly displays the device information. For example, SN, GNSS Type, GNSS Hardware, IMEI, Expired Date, as shown below:...
  • Page 14 Figure 2.2 2.3 Skyplot The skyplot mainly shows the satellite trajectory satellite status map. For example, Trace, Name, Health, Elev, Azim, as shown below: Figure 2.3 2.4 Data Stream The data stream is mainly used to debug data information; you can view the current data status, as shown below:...
  • Page 15 Figure 2.4-1 For example: 1.Message Text: see 2.9 in this Section for the configuration of message text, and the output is shown in Figure 2.4-2: Figure 2.4-2 2.Message Raw: as shown in Figure 2.4-3:...
  • Page 16 Figure 2.4-3 3.Message Diff: when the device is a base station, you can check here whether there is differential data output, as shown in Figure 2.4-4: Figure 2.4-4 4. Message Static: When the device is in static mode, you can check here whether there is static data output, as shown in Figure 2.4-5:...
  • Page 17 Figure 2.4-5 2.5 Command ① System : Reboot, Shutdown; ② Config and Data : Reset Config, Clean Storage, Export Config, Import Config; ③ Register Code : The registration code is a valid time code that authorizes the location function of the device. When it is found that the registration code has expired and the device positioning function is unavailable, you can obtain a new registration code from the supplier by providing the device SN, and enter it on this page and click [Register] to register.
  • Page 18 Figure 2.5 2.6 Mode Config ① Working Mode : You can choose Rover Mode/ Base Mode/ Static Mode, and select the Elev Cutoff at the same time; 1. Rover Mode: the following parameters (Station Name, Elev Cutoff, Diff Age Max, Height Type, Antenna Height, Record, PPK) can be cond. Figure 2.6-1 2.
  • Page 19 Figure 2.6-2 3. Static Mode: the following parameters (Station Name, Elev Cutoff, PDOP Threshold, Sample Interval, Height Type, Antenna Height, Record) can be cond. Figure 2.6-3 ② Data link : You can choose No Data link/ Bluetooth/ Wifi/ Built-in Network/ Built-in Radio/ External Radio/ XLink.
  • Page 20 WiFi name and password by yourself. When the device WiFi is used as the Station, you can access the network by entering the name and password of the external hotspot. ② Others : Time Zone, Voice, Pentax APP support.
  • Page 21 Figure 2.7 2.8 File File management can delete and download data of each channel in batches , as shown below: Figure 2.8 2.9 Firmware ① Version : System, GNSS, INS, Radio, Firmware. ② Local Upgrade : Click Local Upgrade below to automatically identify and upgrade the positioning board firmware, tilt module firmware, and device firmware.
  • Page 22 There will be a prompt below during the upgrade process, and the device will restart after the upgrade is complete. The operation steps are as follows: 1. Click [Local Upgrade]; 2. Select the correct device firmware in the pop-up window, flash the firmware and wait for the device to restart;...
  • Page 23 Figure 2.10 2.11 Message Text You can set the type and frequency of output data in text format, as shown below. After configuration, you can check whether there is corresponding text data output in 3.4 of this section. Figure 2.11 The following are the formats of several common message text: GPGGA $GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,M,<10>,M,<11>,<12>*hh...
  • Page 24 <1> UTC time, hhmmss (hour minute second) format, 8 hours different from Beijing time <2> Latitude ddmm.mmmm (degrees and minutes) format (the previous 0 will also be transmitted) <3> Latitude Hemisphere N (Northern Hemisphere) or S (Southern Hemisphere) <4> Longitude dddmm.mmmm (degrees and minutes) format <5>...
  • Page 25 GPGSV $GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,…<4>,<5>,<6>,<7>*hh <1> Total number of GSV statements <2> Number of GSV in this sentence <3> Total number of visible satellites (00~12, the previous 0 will also be transmitted) <4> PRN code (pseudo-random noise code) (01~32, the previous 0 will also be transmitted), which can be understood as satellite number.
  • Page 26 Name: Format: File name naming rules : 1.The time in file name is converted from GPS Assume GPS leap second is 18, Time Zone offset is +08:00, time directly. Then 00:00:18 means 08:00:00 of local lime. 2.Key words in file name yyyy =>...
  • Page 27 => hour, 00~23 SITE => Marker Name => minute, 00~59 SSSS => Marker Number => second, 00~59 When the device is set to rover station, base station or static mode, the device will automatically con the corresponding channel for data storage by default. 1.
  • Page 28 Figure 2.12-3 3. Static (CH03) When the device is set to the static mode, the device will automatically con CH03 to store static positioning data by default, as shown in the following . Figure 2.12-4 Note: Whenever the PTS3.0 software connects to the device through Bluetooth, the device will automatically con CH04 to store Bluetooth monitor data.
  • Page 29 Figure 2.12-5 2.13 ZXVPN ZXVPN can provide a virtual LAN, connect the device to the server, and conduct WEBUI access in the background to provide corresponding remote technical support and services.The operation steps are as follows: 1. Insert the mobile network card into the device; 2.
  • Page 30 3. PTS3.0 Basic Operations PTS3.0 is the official data collecting software for GX2, and its purchase is optional. If you wish to purchase one, please contact the dealer from whom you purchased your GX2.
  • Page 31 3.1 Software Installation and Uninstallation Installation process: 1. Download the Android PTS3.0 program (*.apk); 2. Copy the PTS3.0 program to your mobile phone (controller); 3. Find the program in the file management of the controller and install it; 4. Click on the PTS3.0 software on the desktop (you need to create a project for the first time, and the last project used will be automatically opened each time the software is started).
  • Page 32 Figure 3.2-1 Figure 3.2-2 Figure 3.2-3 Figure 3.2-4 Figure 3.2-5 Figure 3.2-6...
  • Page 33 3.3 Communication Click [Device]-> [Communication] to enter the communication settings interface, as shown in Figure 3.3-1. Select the device type ("GX2"), communication mode (Bluetooth), and then click [Search], as shown in Figure 3.3-2. View the Bluetooth device list, select the corresponding device serial number, and click [Connect] to complete the device connection, as shown in Figure 3.3-3.
  • Page 34 Figure 3.3-4 Figure 3.3-5 Figure 3.3-6 3.4 Rover Mode Setting Click [Device] -> [Rover], as shown in Figure 3.4-1. GNSS positioning equipment can calculate positioning coordinates by receiving satellite signals. In the absence of other interferences, the positioning equipment can only obtain the coordinate position of a single point solution due to the interferences of the atmosphere on the signal, and the accuracy is low.
  • Page 35 GNSS satellite signal of the base station to the GNSS device in a certain way, so that the GNSS device can obtain a high-precision positioning. In addition to differential data transmission configuration, you can also set the GNSS altitude cutoff angle, differential delay, and whether to enable PPK and other basic information, as shown in Figure 3.4-1.
  • Page 36 network is a dedicated network and needs to configure APN parameters, as shown in Figure 3.4-6. The CORS setting is similar to the Phone Internet. After correctly configuring the server address, obtain the access point list and select the corresponding access point to obtain differential data.
  • Page 37 Figure 3.4-1 Figure 3.4-2 Figure 3.4-3 Figure 3.4-4 Figure 3.4-5 Figure 3.4-6...
  • Page 38 Figure 3.4-7 Figure 3.4-8 Figure 3.4-9 3.5 Base Mode Setting Click [Device]-> [ Base], as shown in Figure 3.5-1. This function is that the GNSS device acts as a base to send satellite information data in a certain way and provide it to the mobile station to receive it, providing it with high-precision solution conditions.
  • Page 39 1. Use Current coordinates: This means that the GNSS device outputs differential broadcast data for the startup coordinates based on the current positioning value (with low accuracy); 2. Input Base Coordinates: refers to the location where the user sets up the equipment.
  • Page 40 Figure 3.5- 1 Figure 3.5-2 Figure 3.5- 3 Figure 3.5-4...
  • Page 41 3.6 Static Mode Setting Click [Device]-> [Static Mode], as shown in Figure 3.6-1. This function is to store the original satellite observation data of the GNSS device into the set disk file, record the observation data of a period of time for the use of static post-processing software to solve the high-precision coordinate position, usually used for control point acquisition.
  • Page 42 and stored in the coordinate point library. In the point survey interface, the top title bar displays the basic information of the positioning output by the current GNSS device, the current solution status, differential delay, HRMS, VRMS and other positioning accuracy assessment values, and the number of received satellites.
  • Page 43 Click [Point Library] to enter the coordinate point library interface, as shown in Figure 3.7-4, where you can view the surveying point status. Click the icon to modify and edit the antenna height information, as shown in Figure 3.7-5. The antenna height setting is to subtract the antenna height from the phase center coordinates of the GNSS to get the actual position of the measured target on the ground.
  • Page 44 Click the icon , as shown in Figure 3.7-11 and Figure 3.7-12, to select the network map you want to display. Figure 3.7-1 Figure 3.7-2 Figure 3.7-3...
  • Page 45 Figure 3.7-4 Figure 3.7-5 Figure 3.7-6 Figure 3.7-7 Figure 3.7-8 Figure 3.7-9 Figure 3.7-10 Figure 3.7-11 Figure 3.7-12...
  • Page 46 Laser Survey requires connecting to an instrument with laser measurement. It is a more convenient way of point survey. It can measure wherever the laser can illuminate, and can overcome obstacles, saving time and effort. When connecting to an instrument with laser function, a laser measurement icon will appear on the measurement interface.
  • Page 47 Figure 3.9- 1 Figure 3.9- 2 Figure 3.9- 3 Figure 3.9- 1 Figure 3.9- 2 Figure 3.9- 3...
  • Page 48 3.8 Tilt Survey The IMU function requires the device to have a tilt module. Devices equipped with this function can achieve: 1. Ensuring accuracy within 2cm in a tilt range of up to 60 degrees; 2. The calibration process is simple, just shake the centering pole back and forth in place;...
  • Page 49 Figure 3.8-2 Figure 3.8-3 3.9 Laser Survey (Only the GX2-L supports this feature) Laser Survey requires connecting to an instrument with laser measurement. It is a more convenient way of point survey. It can measure wherever the laser can illuminate, and can overcome obstacles, saving time and effort.
  • Page 50 this interface, write the laser measurement point name and code, and you can see the laser measurement distance and measurement accuracy. Click [Point Library] to view laser measurement points and common measurement points, as shown in Figure 3.9-6. Figure 3.9- 1 Figure 3.9- 2 Figure 3.9- 3 Figure 3.9- 4...
  • Page 51 Besides, it can be solved quickly. After the solution is completed, the three-dimensional coordinates of the point can be obtained by selecting the point on the photo. 1. Click [Device]->[Communication] to enter the communication settings interface, as shown in Figure 3.10-1. Select the Device Type ("GX2"), communication mode (WIFI), and then click [Search], as shown in Figure 3.10-2.
  • Page 52 Image Gallery button on the left side at the bottom, as shown in Figure 3.10-7, to enter the Image Management Library interface. Select the folder you just took a photo of, and you will automatically enter the solution interface, as shown in Figure 3.10-8. Select featured points from the image, and you can move the image to the left or right or zoom in or out, as shown in Figure 3.10-9, so as to more accurately select the points that need to be solved.
  • Page 53 Figure 3.10-4 Figure 3.10-5 Figure 3.10-6 Figure 3.10-7 Figure 3.10-8 Figure 3.10-9...
  • Page 54 Figure 3.10-10 Figure 3.10-11 Figure 3.10-12 3.11 Point Stakeout Click [Survey]-> [Point Stakeout] to enter the point stakeout library interface, as shown in Figure 3.11-1. Point stakeout means finding the location of a point through coordinate points at the field site when the coordinates of the point are known. Points that have not been staked out and those staked out will be displayed.
  • Page 55 The layout of the point stakeout interface is similar to that of point measurement, but there are some differences. The fill and cut values of the southeast, northwest deviation values from the target are displayed in the status information bar. The compass is together with the current positioning.
  • Page 56 Figure 3.11-1 Figure 3.11-2 Figure 3.11-3 Figure 3.11-4 Figure 3.11-5 Figure 3.11-6...
  • Page 57 1. Click [Device]->[Communication] to enter the communication settings interface, as shown in Figure 3.10-1. Select the instrument type ("GX2"), communication mode (WIFI), and then click [Search], as shown in Figure 3.10-2, view...
  • Page 58 Finally, follow the arrow direction and distance indication to navigate to the area close to the stakeout point, as shown in Figure 3.12-8. When the tip of the centering rod coincides with the marked point, as shown in Figure 3.12-9, the AR real-scene stakeout is completed.
  • Page 59 Figure 3.12-7 Figure 3.12-8 Figure 3.12-9 3.13 Localization Click [Project]-> [Localization], as shown in Figure 3.13-1, you can import control point parameters in various formats, or export control point data into files for use with third-party software. The high-precision position obtained by the software from the GNSS device is the latitude and longitude coordinates of satellite positioning, but in actual project operations, the plane coordinates on the ground are ultimately required for survey and application.
  • Page 60 After editing the control point parameters, calculate the conversion parameters for the control points. Click [Calculation Method] to pop up the conversion parameter condition settings, as shown in Figure 3.13-5. Coordinate conversion methods include plane correction, vertical correction, elevation fitting and seven parameters, which can be all or part of the combination.
  • Page 61 Figure 3.13-4 Figure 3.13-5 Figure 3.13-6 3.14 Calibrate Point Click [Project]-> [Calibrate Point], as shown in Figure 3.14-1. In actual application, GNSS equipment obtains high-precision position by combining differential data of base station with solution. Here we know the coordinate position of base station. In fact, the high-precision position output by GNSS equipment is the relative position of base station.
  • Page 62 coordinates or starting position of the base station changes, a known position needs to be used to calibrate the coordinates correctly. Click [Base Point Calibration], as shown in Figure 3.14-2, and click to select a known point in the coordinate point library (use the coordinates measured by the base station at a certain location last time).
  • Page 63 Figure 3.14-1 Figure 3.14-2 Figure 3.14-3 3.15 Points Database Click [Project]-> [ Points Database], as shown in Figure 3.15- 1. Here you can view and manage the point data in the project, including adding, editing, deleting, and importing. Click the upper right corner , as shown in Figure 3.15-2 , to switch the display style of point information .
  • Page 64 Click the upper right corner and an operation pop-up will appear, as shown in Figure 3.15-1. You can perform batch deletion, data statistics, sorting and other functions as needed. Figure 3.15-1 Figure 3.15-2 Figure 3.15-3 Figure 3.15-4 Figure 3.15-5 Figure 3.15-6...
  • Page 65 3.16 Export Click [Project]-> [Export File], as shown in Figure 3.16-1, and select the type, file format, and angle format of the exported data as needed. Click [Format Manager], as shown in Figure 3.16-2, select the file format of the data to be exported, and click [OK]. Click [Use-defined Format], as shown in Figure 3.16-3, and you can manually create and edit the file format of the exported data.
  • Page 66 Figure 3.17...
  • Page 67 4. Device Activation and Software Registration 4.1 Device Activation Click [Device] -> [Device Activation], as shown in Figure 4.1, to view the device serial number and expiry date. If the GNSS device has expired , you can obtain the registration code from the dealer and authorize the device here. Figure 4.1 4.2 Software Activation Click [Project]->[About Software] , as shown in Figure 4.2-1 , to view the software...
  • Page 68 Click [Manual Code Activation], as shown in Figure 4.2-3, enter the authorization code here or scan the QR code of the authorization code to activate the software. If you need to replace a new controller, you can click [Transfer activation code] in the old controller, then enter the software registration of the new controller and enter the transferred activation code to activate the software.
  • Page 69 5. Built-in radio The GX2 is equipped with a 1.5Watt digital radio that supports integrated transmission and reception. Users can choose from three transmission power levels: low power (0.5W) and high power (1.5W). Note: Each time you set the data link to the built-in radio, you need to install the radio antenna in advance.
  • Page 70 466.625 463.375 464.375 465.375 466.375 463.875 464.875 465.875 466.875...