Geodetic GPS (Global Positioning System) is an important tool in mapping and measurement, especially for land surveying, geospatial mapping, construction, mining, and scientific research.
Its ability to provide measurements over long distances and difficult terrain is one of the geodetic GPS functions.
If you are not familiar with this tool, you should read this article until the end, because you will get information about geodetic GPS from the definition, function, features, to global regulatory compliance and type approval requirements.
What is a Geodetic GPS?
Geodetic GPS (Global Positioning System) is a position monitoring system that also uses satellite signals to determine the location of a point on the Earth’s surface to the centimeter or military level. This tool is essential in applications that require high precision, such as land surveying, geospatial mapping, construction, mining, and scientific research.
The reference for this GPS is the GNSS (Global Navigation Satellite System) system which is a coverage of various global navigation satellite systems belonging to Russia (GLONASS), Europe (GALILEO), China (BEIDOU), Japan (QZSS), India (IRNSS), and including the United States (GPS).
The Functions
Geodetic GPS (Global Positioning System) has many functions, especially in providing accurate measurements to the smallest detail. Here are some of the functions of geodetic GPS:
- Determining accurate coordinates: Position (X, Y, Z coordinates) can be determined with high accuracy.
- Mapping and cartography: Data can be processed into accurate digital maps for the needs of mapping agencies.
- Ground movement monitoring: Can monitor changes in ground position, especially in landslide-prone areas.
- Long-distance and difficult terrain measurement: Can be used in difficult terrain as it does not require a direct line of sight between points.
- Environmental change monitoring: Can monitor land and topographic changes over a long period with high accuracy.
The Features
Geodetic GPS (Global Positioning System) has many features for supporting measurements. Here are some of the main features of a geodetic GPS:
- GNSS measurement: Uses the Global Navigation Satellite System (GNSS) to accurately determine position.
- Real-Time Kinematic (RTK): Technology that enables real-time measurements with high accuracy.
- Internal measurement unit (IMU): Enables stable and accurate measurements in difficult field conditions.
- Connectivity and compatibility: Connectable and compatible with a wide range of CORS (Continuously Operating Reference Stations).
- Software integration: This can be integrated with software for data management, analysis, and export of measurement results
- Additional features: Some models feature cameras, data recording, and tilt measurement capabilities.
How it Works
After understanding its key features, you need to know how geodetic GPS works to maximize its performance. The two main components that support its operation are the Base Station and the Rover. To achieve centimeter-level accuracy, advanced settings are required for both components.
- Base Station & Corrections: The component that precisely calculates its position and measures errors in real time. It is placed at a fixed coordinate point connected to a permanent reference network.
- Rover Unit: The mobile component that receives satellite signals while simultaneously processing error correction data from the base station via a radio or cellular connection.
Global Regulatory Compliance and Type Approval
As we know, geodetic GPS devices operate using wireless communication technologies such as Bluetooth, Wi-Fi, and radio modems or cellular modules. The use of devices with wireless technology cannot be taken lightly.
Before a device is commercially distributed, it must comply with strict regulations worldwide. Before it can be legally imported, sold, or operated, the device must undergo type approval certification.
During this process, the device will be tested in accordance with the technical standards applicable in your target market. Testing generally includes Radio Frequency (RF), Electromagnetic Compatibility (EMC), and Electrical Safety.
RF testing ensures the device operates within its allocated frequency band without causing interference. EMC testing ensures the device can operate in complex environments without causing electromagnetic interference. Electrical safety testing ensures there are no potential electrical hazards during use.
The certificate serves as legal proof that the device is safe and does not interfere with other devices when in use. As a result, the device can successfully enter the global market.
