GNSS Survey and Data Processing Course

2 Day Course:

The GNSS background session provides a comprehensive theoretical foundation for a training course on GNSS (Global Navigation Satellite System) technologies. It covers the critical aspects of how GNSS systems like GPS, GLONASS, Galileo, and BeiDou function to provide global positioning capabilities.

The course explains the importance of time in obtaining GNSS-derived positions and the necessity of using two receivers for high-precision positioning. It delves into the WGS84 coordinate system, which is standard for GPS, and outlines various causes of errors (biases) in GNSS systems such as multipath effects, atmospheric delays, and signal obstructions.

Participants will engage in hands-on exercises focusing on data collection, employing a FastStatic methodology to establish a compact network of Control Stations. Practical sessions will involve GNSS baseline processing and network adjustment utilising Trimble Business Center. Guidance will be provided during the baseline processing segment regarding acceptable error margins and the utilization of precise ephemeris data. Additionally, the network adjustment session will involve refining shorter occupation points to align with longer occupation points. Ordnance Survey RINEX data will be employed to adjust the longer occupation points to precise coordinates, ensuring accuracy and consistency throughout the process.

Through this training, participants would be equipped to handle GNSS equipment more effectively, understand the technicalities of GNSS data processing, and mitigate common sources of error in GNSS surveying.

GNSS Survey and Data Processing Course

2 Day Course:

The GNSS background session provides a comprehensive theoretical foundation for a training course on GNSS (Global Navigation Satellite System) technologies. It covers the critical aspects of how GNSS systems like GPS, GLONASS, Galileo, and BeiDou function to provide global positioning capabilities.

The course explains the importance of time in obtaining GNSS-derived positions and the necessity of using two receivers for high-precision positioning. It delves into the WGS84 coordinate system, which is standard for GPS, and outlines various causes of errors (biases) in GNSS systems such as multipath effects, atmospheric delays, and signal obstructions.

Participants will engage in hands-on exercises focusing on data collection, employing a FastStatic methodology to establish a compact network of Control Stations. Practical sessions will involve GNSS baseline processing and network adjustment utilising Trimble Business Center. Guidance will be provided during the baseline processing segment regarding acceptable error margins and the utilization of precise ephemeris data. Additionally, the network adjustment session will involve refining shorter occupation points to align with longer occupation points. Ordnance Survey RINEX data will be employed to adjust the longer occupation points to precise coordinates, ensuring accuracy and consistency throughout the process.

Through this training, participants would be equipped to handle GNSS equipment more effectively, understand the technicalities of GNSS data processing, and mitigate common sources of error in GNSS surveying.

Course Overview:

This training course provides an introduction to Trimble Business Centre (TBC) for earthworks applications. Participants will learn how to navigate the software, import and manage data, create and modify surfaces, perform earthwork calculations, and generate deliverables for construction projects. The course is designed for engineers, surveyors, and construction professionals looking to enhance their knowledge of TBC’s earthworks functionality.

Learning Objectives

By the end of this course, participants will be able to:

• Identify and operate Trimble Business Centre core functions and views
• Import and manage data suitable for surface creation
• Create and edit surfaces using breaklines, boundaries and surface properties
• Perform earthwork volume calculations
• Generate reports and documentation for construction projects
• Utilise key tools and workflows for efficient earthwork project management

Target Audience:

• Civil Engineers
• Surveyors
• Construction Managers
• Earthworks and Site Development Professionals
• GIS and CAD Technicians

Prerequisites:

• Basic understanding of construction and survey principles.
• Familiarity with CAD software is beneficial but not required.

Course Outline

Session 1: Introduction to Trimble Business Centre

• Overview of the software interface
• Key features and capabilities
• Software setup and customization
  • Group exercise based on contents of written task
  • Can go back to written task for individual work if time later

Session 2: Data Import and Management

• Design data formats and import (CSV, DXF, LandXML, etc.)
• Managing layers, points, and surfaces
  • Group exercise on data check using Views and Detect Crossing Geometry

Session 3: Surface Creation, Editing & Views

Part 1

• Create a surface from point and line data
• Add and remove Surface Members
• View and inspect surfaces
• Controlling surface triangulation and edges
• Using boundaries and breaklines
• Address Warnings – troubleshooting

Part 2

• Create a Planar surface
• Project slope from string (Surface tie)
• Merge surfaces
• Intersect surfaces
• Offset a surface
• Create a surface from point cloud data
• Drape image over surface model

Session 4: Surface Inspection and Analysis

• Create a Quick Profile drawing
• Generate Slope Arrows
• Adjust surface transparency
• Create an Elevation Grid
• Create and customise Contour lines
• Produce a Surface Info Report

Session 5: Volume Calculations & Cut/Fill Mapping

• Perform earthwork volume calculations
• Generate and interpret volume reports
• Generate Cut/Fill maps for visualisation
• Export data for field use and further analysis

Session 6: Workflow Optimisation & Tips

• Workflow optimisation options
• Tips for efficient data management

Enrolment Information:

To register for the Trimble Business Centre Earthworks Basics course, please contact us at support@korecgroup.com or complete the Book This Course form above.

Course Overview: Trimble Access – Setting Out Essentials

Duration: One day
Instrument: Trimble Total Station

Course Overview

This training course provides essential knowledge and practical skills for operating a Trimble Total Station with Trimble Access for general site setting out tasks. While no prior experience with Trimble Access is required, a background in surveying or setting out is advantageous. The course features an initial classroom briefing followed by hands-on outdoor fieldwork exercises.

Learning Objectives

Upon successful completion of this course, participants will be able to:

• Perform a Resection station setup
• Verify position accuracy using a Control Point
• Select appropriate Trimble Target types and tracking modes
• Create and manage Projects and Jobs
• Import setting out design data from CSV, DXF, and TTM file formats
• Execute setting out for points, polylines, and surfaces
• Install pegs and profile board markers
• Apply offset techniques for setting out tasks
• Manipulate CAD drawings, including exploding elements and creating nodes
• Measure surface points and compute volume calculations
• Generate professional setting out reports

Course Structure

Introduction Session

• Overview of Trimble Access and data types
• Station setup methods
• Fieldwork data and task preview
• Loading design data onto the controller via USB
• Introduction to targets, poles, search options, and function keys

Total Station Setup

• Performing a Resection setup
• Checking onto a Control Station

Setting Out Points

• Setting out building pad corners
• Setting out pad corner offsets from a keyed-in line
• Precisely setting out brickwork corners
• Checking dimensions between brickwork corners
• Reporting site levels
• Setting out manhole positions
• Establishing profile boards for drainage runs

Setting Out Lines from CAD Files

• Placing pins along a kerb string face
• Positioning pins at the back and top of a kerb
• Setting out gully centers

Surfaces & Volumes

• Setting out surfaces
• Computing Cut/Fill volumes
• Calculating stockpile volumes

Office-Based Activities

• Generating setting out reports
• Course assessment
• Learning references and supplementary materials

Target Audience

This course is designed for professionals responsible for site setting out tasks using Trimble Access, including site engineers and survey engineers. While no prior experience with Trimble equipment is necessary, familiarity with surveying or setting out practices is beneficial.

Tools and Software

• Trimble Total Station: Trimble S5 or S7 Robotic Total Station
• Field Software: Trimble Access
• Field Controller: Trimble TSC5

By the end of this course, participants will be proficient in performing essential setting out tasks using Trimble Access. Course materials and additional learning resources will be provided through the KOREC Geoschool learning platform.