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3Rtablet AT-R2 User Manual

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AT-R2
User Manual

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Summary of Contents for 3Rtablet AT-R2

  • Page 1 AT-R2 User Manual...
  • Page 2 Do not bend or fold the cable excessively. Ensure that AT-R2 is mounted and positioned as horizontally as possible. During use or testing, the antenna of AT-R2 should be placed as far as possible in an open area with no tall buildings or trees within 20 meters.

  • Page 3: Product Highlight

    1. Introduction AT-R2 is a high performance multi-frequency RTK receiver with Bluetooth and RS232 interfaces. It acts as a GNSS receiver receiving RTCM3.x messages from the base station or using network CORS service data to provide centimetre accuracy positioning results. It can be custom configured to output a wide range of standard NMEA message format statements and development protocols are provided to allow users to carry out secondary development.

  • Page 4: Products & Accessories

    Vesa Fixed Bracket (Optional) (Optional) 1.3. Parts of the Device The appearance of AT-R2 is shown below: ANT：Reserved interface, temporarily unavailable. PWR/IO：Interfaces for power supply and expansion functions such as serial ports. UHF：Radio antenna interface for connecting an external radio antenna.

  • Page 5: Specifications

    RTK：RTK indicator light to indicate the status of the unit's RTK differential signal reception and RTK fixed. BT：Bluetooth indicator light to indicate the Bluetooth connection status of the device. POWER：Power indicator light to indicate the operating status of the device. SIM card slot：Reserved function, temporarily unavailable.
  • Page 6 Rate Distance 1-5KM（typical） USER INTERACTION Indicator Light Power Light, BT Light, RTK Light, Satellite Light. COMMUNICATION BLE 5.2 IO Ports RS232(default baud rate of serial port: 460800); CANBUS (Customizable) POWER PWR-IN 6-36V DC Power Consumption 1.5W CONNECTOR M12 for data communication and power in x1 for UHF Radio ENVIRONMENTAL Operating...

  • Page 7: Indicator Light Description

    Description Define CAN_L CAN_H Define RS232-TX RS232-RX P2(Power) Define P3(Can Bus) Define CAN_H CAN_L P4(RS232) Define RS232-RX RS232-TX 2.2. Indicator Light Description Table 1 Indicator Light Status Description Icon Color Status Definition ①Satellite Blue Flash Searching for satellites Satellites Search Success Device Shutdown ②RTK Statement Blue...
  • Page 8 Install the "AT-RTK2" software on the mobile terminal, the software icon is as follows: 2.3.2. Connecting AT-R2 via Bluetooth After AT-R2 is turned on, the Bluetooth indicator will spark at 1Hz, indicating that the Bluetooth of AT-R2 enters the state of pending connection, open the software, the interface is as follows.
  • Page 9 There are two types of connection methods, Bluetooth and serial port, the default connection method is Bluetooth. For serial port connection instructions please refer to 2.3.3. Connecting the AT-R2 via serial port. Find the Bluetooth name of the GNSS Receiver. Bluetooth name format: AT-R2_XXXX.
  • Page 10 2.3.2.1. Satellites The satellite page displays the search satellite status of the device, including individual satellite numbers for each of the four satellite systems and signal-to-noise ratio information. Main Interface of successful connection to GNSS Receiver via Bluetooth Display the connection status of Bluetooth. Display the connected GNSS receiver Bluetooth name and Bluetooth Mac address.
  • Page 11 Click to disconnect the software from the GNSS receiver Bluetooth connection. The satellite signal-to-noise ratio of the GPS system is displayed first by default. Press the button to switch to the GLONASS satellite system and view the GLONASS satellite signal-to-noise ratio. Press the button to switch to the GALILEO satellite system and view the GALILEO satellite signal-to-noise ratio.
  • Page 12 2.3.2.3. Trajectory Click “Trajectory” to check the positioning status of the receiver. Trajectory Dispersion Map: the radius of the trajectory map is automatically adjusted according to the deviation distance of the positioning point, the first positioning point is the reference point (i.e. the centre of the circle), and the rest of the points are calculated from the offset longitude and latitude positions relative to the first reference point.
  • Page 13 is constantly refreshed is that it is constantly being corrected and adjusted to cope with multiple changes and sources of error in the environment, and the differential age maintained at 2.0 represents excellent communication with the base station radio. For example, if the value stays at 5.0, it means that there is a delay in communication, and it is necessary to check whether the radio antenna is blocked or not, but it doesn't affect the RTK accuracy;...
  • Page 14 (1) OTA Upgrade Instruction Displays the current firmware version of the device. Click "SELECT" to select the OTA upgrade file. (The upgrade file needs to be copied to the local path of the device first, and it is not possible to upgrade the upgrade file stored in the path of a USB stick or other external memory.) Displays the path where the selected OTA upgrade file is stored.
  • Page 15 Select NMEA statement types such as GGA, GSV, GSA, VTG, RMC, ZDA, GLL, GST, HDT TRA and so on. Select the output frequency for the current NMEA statement type. (1Hz, 2Hz, 5Hz, 10Hz are supported). Click “Send” (Sends a command to the positioning module to set the instruction to be output at xHz.* After the device is shut down, the changed configuration will not be saved.) Checkbox to stop output of all NMEA statements.
  • Page 16 Android Terminal with RS232/PC（1 of 2） Connect the extension cable to the AT-R2 connector, then use the power adapter to power AT-R2. Use the DB9 connector of the extension cable to connect the PC via a USB to serial port...
  • Page 17 Then connect according to the serial node of the Android terminal. Take ttyHSL0 as an example: Note that the default serial port baud rate for Android software is 460800. When AT-R2 is connected to the PC, please set the baud rate of the computer software to 460800 for normal...

  • Page 18: Installation

    The same as the Radio Setting Instruction via Bluetooth 2.4. Installation AT-R2 has a strong magnetic magnet on the bottom as standard, which can be securely attached to the roof or bonnet position of the vehicle. The unit should be mounted as central and horizontal to the vehicle as possible, with the...
  • Page 19 FCC Caution: This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

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