Reference Station ID Setting and Differential Data Source Identification
In RTK positioning technology, the data exchange between the reference station and the rover station is crucial for achieving high-precision positioning. To ensure that the rover station accurately receives differential data from a specified reference station, it is essential to set the reference station ID and identify the specific differential data source. Let’s explore how to do this using the SinoGNSS K8 series receivers.
1 DGPSTXID: Unique identification of the reference station
1.1 Importance of the reference station ID
A reference station sends differential data to a rover station to correct its positioning errors. Since there may be multiple reference stations operating in the same area at the same time, each reference station must have a unique ID to identify its identity and location. This ID is not only critical for the server in a network RTK system (e.g. CORS network), but also for the communication between independently set up reference stations and rover stations.
1.2 DGPSTXID command
DGPSTXID <type> <ID>
1.3 Example
DGPSTXID RTCMV3 8: Reference station will send differential data in RTCMV3 format and its ID is set to 8.
2 RTKSOURCE: Precise selection and receiving of differential data source
2.1 Functions of the RTKSOURCE command
In complex RTK application scenarios, the rover station may receive differential data from multiple reference stations.The RTKSOURCE command is used to set the receiver to receive only data with the specified differential correction source and reference station ID.When the receiver may receive corrections from more than one reference station, use this command to block differential data sent by a reference station ID other than the one specified, thereby preventing frequency interference from other stations.
2.2 RTKSOURCE command
RTKSOURCE <type>
2.3 Example
RTKSOURCE AUTO ANY: Receiver will automatically select the differential correction type and receive differential data from any reference station (ignoring the ID).
RTKSOURCE RTCM ANY: Receiver will receive differential data in RTCM format without limiting the reference station ID.
RTKSOURCE RTCMV3 8: Receiver will receive differential data only in RTCMV3 format and exclusively from the reference station with ID 8.
3 Conclusion
With the DGPSTXID command to set the ID of the reference station and the RTKSOURCE command to identify and receive a specific differential data source, users can effectively manage the data sources of their RTK system .In practical applications, choosing the appropriate differential correction type and reference station ID according to the specific scene is of great significance for improving positioning accuracy and stability. For example, when conducting building surveys or road construction monitoring in complex urban environments, the wrong differential data source may lead to positioning deviation, which in turn affects the quality and progress of the project. By using the DGPSTXID and RTKSOURCE commands, survey engineers can flexibly configure their equipment to ensure that it can still receive the required differential data stably and reliably in complex environments.
About ComNav Technology
ComNav Technology develops and manufactures GNSS OEM boards and receivers for high precision positioning demanded applications. Its technology already been used in a wide range of applications such as surveying, construction, machine control, agriculture, intelligent transportation, precise timing, deformation monitoring, unmanned system. With a team dedicated for the GNSS technology, ComNav Technology is trying its best to supply reliable and competitive products to worldwide customers. ComNav Technology has been listed on the Shanghai Stock Exchange (Science and Technology Board), securities :ComNav Technology (Compass Navigation), Stock code: 688592.
About SinoGNSS®
SinoGNSS® is the official trademark of ComNav Technology Ltd., registered in People's Republic of China, EU, USA and Canada. All other trademarks are the property of their respective owners.
About ComNavTech®
ComNavTech® is the official trademark of ComNav Technology Ltd., registered in People's Republic of China, EU, USA and Canada. All other trademarks are the property of their respective owners.
