1. Introduction
The SMAJAYU SMA28H Rover is an advanced GNSS RTK laser system designed for high-precision surveying and mapping applications. It integrates revolutionary laser detection, visual targeting with dual cameras, augmented reality (AR) staking, and comprehensive GNSS constellation support with inertial tilt compensation. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your SMA28H Rover to ensure optimal performance and longevity.
2. What's in the Box
Carefully unpack the SMA28H Rover and verify that all components are present. If any items are missing or damaged, please contact SMAJAYU customer support.
Image 2.1: Contents of the SMA28H Rover package. This image displays the SMA28H receiver, power adapter, charging cable, handheld controller, radio antenna, portable bracket, and user manual.
- 1x SMA28H Receiver
- 1x Portable Bracket
- 1x Power Adapter
- 1x Charging Cable
- 1x Radio Antenna
- 1x User Manual
- 1x Handheld Controller (if included in your specific package)
3. Setup
3.1 Initial Charging
Before first use, fully charge the SMA28H Rover using the provided power adapter and charging cable. The device features a 6600 mAh battery, providing up to 20 hours of operation in rover mode.
3.2 Antenna Installation
Attach the radio antenna to the designated port on the SMA28H receiver. Ensure it is securely fastened for optimal signal reception and transmission.
3.3 Handheld Controller Setup
The handheld controller is your primary interface for the SMA28H Rover. It features a 5.5-inch display and a Qwerty keyboard. Power on the controller and ensure it is paired with the SMA28H receiver via Bluetooth or Wi-Fi.
Image 3.1: The handheld data controller, featuring a 5.5-inch display and Qwerty keyboard, used for operating the SMA28H Rover.
3.4 Software Configuration
The SMA28H Rover utilizes dedicated acquisition software. Ensure the software is installed on your handheld controller and configured correctly. The software supports 42 languages for global collaboration.
Image 3.2: Overview of the SMA G - Survey software interface, demonstrating language selection and project management features.
3.5 Connecting to a Drone (Optional)
The SMA28H can function as a base station for drones/UAVs. Follow these steps to connect:
- Set SMA28H as NTRIP Caster: Connect via Bluetooth, select Base Mode, activate NTRIP Caster (Port: 8000). Differential data will be transmitted via Wi-Fi. No SIM or server credentials are required.
- Connect Drone Remote Control to SMA28H Wi-Fi: The SSID is the serial number (SN) of the SMA28H. No password is required.
- Configure NTRIP in Drone Software: In the "Custom Network RTK" option of the drone software, enter: IP 192.168.10.1, Port 8000, Username. Select the mount point created in Step 1.
- Begin Operation: The drone will receive differential data and transition to "Fixed Solution" status.
Image 3.3: Instructions and visual representation for connecting the SMA28H Rover to a drone for base station functionality.
4. Operating Instructions
4.1 Laser Measurement
The SMA28H features a high-precision green laser module for non-contact measurements. This allows for accurate measurements on surfaces such as walls, railings, bridges, and water, with a precision of 3-4 cm within 15 meters.
Image 4.1: The SMA28H Rover demonstrating its laser measurement capability, highlighting 3-4 cm precision within 15 meters.
4.2 Visual Targeting with Dual Camera
Equipped with dual 5MP ultra-wide-angle cameras, the SMA28H assists in precise targeting during laser measurements and AR staking. The laser's landing point is intuitively displayed on the handheld controller for accurate alignment.
4.3 Augmented Reality (AR) Staking
The AR staking function provides real-time visual guidance. Objectives are displayed through the camera's live feed with directional cues, significantly improving efficiency in construction and control network creation. The position of the point is shown directly in the video, and real-time directional guidance helps quickly locate staking points.
Image 4.2: The handheld controller displaying the AR staking interface, showing real-time visual guidance for precise point location.
4.4 GNSS Constellation and Tilt Compensation
The SMA28H features a 1408-channel GNSS receiver, supporting BDS, GPS, GLONASS, Galileo, and QZSS constellations. It offers tilt detection with 2.5 cm precision within 60° and supports tilt up to 120°, ensuring accurate measurements even in challenging environments.
Image 4.3: The SMA28H Rover illustrating its support for multiple GNSS constellations including GPS, BDS, GLONASS, Galileo, and QZSS.
Image 4.4: A user demonstrating the 120° tilt compensation feature of the SMA28H Rover, allowing for flexible measurement angles.
4.5 Connectivity
The SMA28H Rover is equipped with integrated 4G LTE, UHF radio, Wi-Fi, and Bluetooth for robust connectivity. It also features a WEBUI platform for remote access and configuration.
Image 4.5: Diagram illustrating the various connectivity options of the SMA28H Rover, including 4G, UHF, Wi-Fi, Bluetooth, and WEBUI.
The integrated radio module supports communication distances up to 15 KM, utilizing protocols such as CSS (Lora), TrimTalk, TT450S, TRANSEOT, TRIMMK3, South, and Satel.
Image 4.6: Visual representation of the 15 KM communication range supported by the SMA28H's integrated radio module.
5. Maintenance
5.1 Cleaning and Storage
Regularly clean the exterior of the SMA28H Rover with a soft, damp cloth. Avoid using harsh chemicals. Store the device in a dry, cool place away from direct sunlight and extreme temperatures when not in use. Ensure all ports are covered to prevent dust and moisture ingress.
5.2 Battery Care
To maximize battery life, avoid fully discharging the device frequently. Recharge the battery when the charge level is low. For long-term storage, charge the battery to approximately 50% and store in a cool, dry environment.
5.3 Durability Features
The SMA28H Rover is designed for rugged outdoor use, featuring an IP67 waterproof rating and tested to withstand drops from 1.8 meters. It operates reliably in temperatures ranging from -55°C to +85°C.
Image 5.1: The SMA28H Rover highlighting its IP67 rating, indicating resistance to water, dust, and drops from 1.8 meters.
6. Troubleshooting
6.1 PPP Connection Issues
Following recent updates to the Beidou satellite system, if you need to use the PPP measurement mode of E6-HAS, you must first disable Beidou in the software before enabling PPP mode for acquiring satellite signals.
Image 6.1: Step-by-step guide to resolve PPP connection issues by disabling the Beidou satellite system in the software settings.
NOTE: If you are using CORS, it is not necessary to disable Beidou; ignore this step.
6.2 General Troubleshooting Tips
- Device Not Powering On: Ensure the battery is charged. Connect to the power adapter and try again.
- No GNSS Signal: Ensure the device has a clear view of the sky. Check antenna connection. Verify GNSS settings in the software.
- Connectivity Issues (Wi-Fi/Bluetooth): Ensure both devices have their respective wireless functions enabled. Re-pair devices if necessary.
- Inaccurate Measurements: Calibrate the device according to software instructions. Ensure the environment is suitable for laser and GNSS operation (e.g., clear line of sight for laser, open sky for GNSS).
7. Specifications
Below are the detailed specifications for the SMAJAYU SMA28H Rover:
| Feature | Specification |
|---|---|
| Brand | SMAJAYU |
| Model Name | SMA28H Rover |
| Laser Measurement Precision | 3-4 cm within 15 meters |
| Dual Camera | 5 MP Ultra-wide-angle |
| GNSS Channels | 1408 channels |
| Supported GNSS Constellations | BDS, GPS, GLONASS, Galileo, QZSS |
| IMU Tilt Compensation | Up to 120° tilt, 2.5 cm precision within 60° |
| Connectivity Technology | WiFi, 4G LTE, UHF Radio, Bluetooth, NFC |
| UHF Communication Range | Up to 15 KM |
| Battery Life | Up to 20 hours (6600 mAh) |
| Waterproof Rating | IP67 |
| Drop Resistance | 1.8 meters |
| Operating Temperature | -55°C to +85°C |
| Handheld Display Size | 5.5 Inches |
| Handheld Memory | 32 GB |
| Dimensions (L x W x H) | 12.9L x 12.9W x 7.8H cm |
| Weight | 2.6 Kilograms |
8. Warranty and Support
8.1 Product Warranty
The SMAJAYU SMA28H Rover comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accidents, unauthorized modifications, or natural disasters.
8.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact SMAJAYU customer support. Refer to the contact information provided in the packaging or on the official SMAJAYU website. Our support team is available to help you with any questions or issues you may encounter with your SMA28H Rover.
