Geodetic System & Point Positioning .pdf
- 1. Geodetic System & Point Positioning Presented by Group-4 ROLL: 2131012 2131014 2131029 2131030 2131031
- 2. ✓ Introduction ✓ Fundamental Concept ✓ Tools and Techniques ✓ Challenges, Application and Future ✓ Case Studies and Conclusion ✓ QNA Contents
- 3. GEODETIC SYSTEM Geodetic systems provide a framework for accurately measuring and representing the Earth's surface.
- 4. Geodetic Coordinate System ● Geodetic coordinate system is a mathematical tool used for describing locations on and near the Earth's surface. ● latitude, longitude, and altitude,
- 5. Latitude ● Latitude measures how far north or south a place is from the equator ● Latitude values are positive to the north, negative to the south. ● Zero degrees of latitude is the line of equator.
- 6. Longitude ● Longitude is measured in degrees east or west of the prime meridian. ● The prime runs through Greenwich, London, and separates the eastern and western hemispheres.
- 7. Elevation ● Elevation tells us how high or low something is above see level. Measurement of Height Adding another Dimension- the “Ups and down” with Combining Latitude and Longitude, we get a 3D map.
- 8. POINT POSITIONING The process of determining the precise coordinates of a specific point on the Earth's surface.
- 9. GEOID A geoid is a model that represents the shape of the Earth's gravitational field
- 10. Geodetic Datum ● A geodetic datum is a global datum reference frame for precisely representing the position of locations on Earth or other planetary bodies by means of geodetic coordinates. ● The common Two types of Datum including: 1. Horizontal 2. Vertical
- 12. Concepts 1. GNSS 2. THEODOLITES 3. TOTAL STATION Tools
- 13. GNSS ▪ Global Navigation Satellite System The capabilities of Global Navigation Satellite Systems. Including GNSS is a network of satellites that provide location and time information to GPS receivers. GNSS performs using 4 criteria 1. Accuracy 2. Integrity 3. Continuity 4. Availability MAPPING Locate features that can be incorporated into GIS NAVIGATION GNSS enables precise location and navigation using signals from satellites. Global Navigation Satellite Systems (GNSS) such as GPS, GLONASS, and Galileo play a vital role in point positioning.
- 14. Total Station vs
- 15. Concepts Methods or approaches used to process, analyze, or enhance the accuracy of measurements taken with these tools. e.g RTK Techniques
- 16. RTK ▪ RTK (Real-Time Kinematic) is a satellite- based navigation system ▪ calculate position estimates with high accuracy in real-time ▪ useful in applications such as transportation, agriculture, mining, and surveying.
- 17. PPP ▪ Precision Point Positioning (PPP) is a satellite-based technology ▪ provides high-accuracy, low-cost location tracking and mapping. ▪ PPP combines signals from multiple Global Positioning System (GPS) satellites to determine the receiver's location.
- 19. REMOTE SENSING ▪ Remote sensing is a way of observing the Earth from a distance, using satellites, aircraft, or drones. ▪ It uses special cameras or sensors that detect the energy reflected or emitted by the Earth's surface or atmosphere
- 21. GIS ▪ Geographic Information System, is a computer-based tool ▪ Used for capturing, managing, and analyzing all forms of geographically referenced information ▪ It helps users visualize, understand, interpret and analyze. ▪ can be used in various fields including urban planning, natural resources management, public health, and emergency management.
- 23. Challenges in Geodetic Systems Some of the challenges that can arise in geodetic systems include: ● Accuracy: ● Data collection: ● Variation in the Earth
- 24. Real-World Applications Exploring the diverse applications of precise point positioning. Including, Surveying The collection of precise location data for various applications, including land surveying, geodetic measurements, and other positioning tasks. Navigation Determining precise coordinates for a receiver's location using signals from global navigation satellite systems (GNSS). Precision Agriculture Contributes to precision agriculture by providing high- precision and accurate positioning information for agricultural activities.
- 25. Future ❖ High-precision global satellite systems, like GPS III, will continue advancing geodetic positioning capabilities in the future. ❖ Emerging technologies such as Real-Time Kinematic (RTK) and Artificial Intelligence (AI) are set to enhance point positioning accuracy and efficiency. ❖ The growing use of IoT devices will increase demand for precise positioning, leading to widespread adoption across various application.
- 27. High-Precision Surveying ● GNSS guide machinery for accurate farming and optimizing resourse use.
- 28. Urban Planning ● Geodetic Systems help precise mapping and ensuring organized development. ● It helps to create detailed maps.
- 29. c ENVIRONMENTAL MONITORING ✓ Environmental monitoring includes monitoring of air quality, soils and water quality
- 30. Thank you for joining us on this exploration of geodetic system & Point Positioning CONCLUSION