SyncFrame Technology: Expanding Possibilities for RTK and PPP

Today, we are thrilled to announce that with the new firmware update (V620F1 and higher version), PPP functionality is now standard on the K8 series GNSS modules, GNSS receivers and related solutions. This means seamless switching between RTK and PPP is now at your fingertips. Taking it a step further, the new firmware not only supports single correction service PPP but also incorporates PPP and RTK fusion technology (SyncFrame Technology), which integrated the frameworks of the both in real-time, allowing users to transition effortlessly from an RTK solution to a PPP solution and vice versa while maintaining coordinate consistency.

1 Technical Principles

RTK typically uses the local reference frame, while PPP often employs the latest ITRF framework. This leads to a coordinate deviation between the two positioning technologies, making it challenging for users to freely switch between RTK and PPP. SyncFrame Technology dynamically calculates and corrects the framework deviation in real-time. When switching from an RTK solution to a PPP solution, automatic calibration occurs by background engine, ensuring PPP outputs results directly in the same framework as RTK. This ensures continuous working even in scenarios with sudden RTK signal interruptions, weak cellular signal strength, or limited radio distance.

2 Key Features

n  Framework Fusion: Real-time fusion of local RTK and PPP frameworks ensures consistent coordinate outputs.

n  Diverse PPP Services: The K8 series boards support both BeiDou's PPP-B2b service and Galileo's PPP-HAS service. The latest firmware merges differential data from both, providing GPS+BDS+GAL three-system correction services, further enhancing PPP's availability and reliability.

n  Global Coverage: Galileo PPP-HAS service covers the globe, while PPP-B2b serves China and surrounding countries.

n  Reliable Accuracy: Tested and validated in multiple countries across the globe, PPP-HAS achieves 20cm (95%) horizontal accuracy, and PPP-B2b achieves 10cm (95%) horizontal accuracy in China and surrounding countries.

n  Free of Charge: PPP-B2b and PPP-HAS are free services provided to end-users.

n  User-Friendly: Base on background computation, the engine doing real-time conversion, no user intervention required.

3 Applications

Industries such as Surveying and Mapping, Agriculture, Drones, and Robotics will greatly benefit from this revolutionary innovation.

With traditional surveying and mapping, it is difficult to set up base stations in remote areas such as oceans and deserts. With PPP, reliable coordinates can be obtained easily. In agriculture, once the signal is interrupted, agricultural machinery will be unable to work, causing delays in harvesting and planting. SyncFrame Technology will perfectly solve this problem and seamlessly transition to PPP solution to ensure continuous operation of agricultural machinery. After the signal is restored, it will immediately switch to RTK solution to ensure that the optimal operation plan is always selected.

4 User Experience Results Sharing

Location: Japan

Date : Dec 22th 2023

Place : Haneda Tenkubashi-Parking.

Test method: The antenna is installed on roof of the car, after RTK-FIX is achieved then turn off the correction intentionally.

Green line: RTK-FIX  Grey line: PPP

Transition from PPP to RTK with Trajectory Smoothing.

Green point: RTK-FIX  Grey point: PPP

Transition from RTK to PPP with Trajectory Smoothing.

Green point: RTK-FIX  Grey point: PPP

5 Future Outlook

While RTK technology continues to mature, we never cease to explore new possibilities. In March 2023, ComNav Technology emerged as a pioneer in global to support Galileo HAS services. Today, we integrate the strengths of both RTK and PPP, presenting new solutions and possibilities for diverse industry applications. Expect more innovations and better user service in the days to come.

Learn more about PPP, you can visit this blog, PPP+IMU Technology:

https://comnavtech.com/about/blogs/618.html

If you are interested with the new technology, you can contact us now!

For firmware testing or more details regarding on this technology, please contact our technical team at: oem.support@comnavtech.com