Cordel Connect Glossary

Term

Description

Audit

A group of assets detected by Cordel machine learning that is ready for human review. Each audit presents detected assets with status classifications (New, Moved, Matched, Missing) alongside visual, imagery, and point cloud tools. Reviewers accept or reject each asset to confirm or remove it from the published record. Audits are part of the PTC Asset Connect module.

GNSS

Global Navigation Satellite System

GPS

Global Positioning System

IMU

Inertial Measurement Unit

Job

A group of one or more missions captured within a continuous operating session. A new mission is added to an existing job if its start time falls within 5 minutes of that job's end time; otherwise a new job is created.

.LAZ / .LAS

The .LAS (LASer) format is a file format designed for the interchange and archiving of lidar point cloud data
The .LAZ format is the compressed version that significantly reduces file size

LiDAR

Laser imaging, Detection and Ranging

Mission

A single continuous data capture run by a Cordel capture unit. Each mission is limited to a fixed capture duration (typically 15 minutes). Missions are the individual segments that make up a Job.

Network Model

A representation of a rail network's physical infrastructure in Cordel Connect, including routes, tracks and positional reference data. The Network Model is used for geographic navigation in Explorer and for locating data by route and distance. Also known as a Linear Reference System (LRS).

Rover

A Cordel capture unit. Rovers collect LiDAR, imagery, and positional data during track traversal and upload missions to Cordel Connect via Cordel Ground Station or Cloud Sync.

RTK

Real Time Kinematic

Slice

A cross section of arbitrary depth that represents real world measurements along a rail corridor, from the rail to the objects and structures that surround it.
Slices are represented using the .SC* file format when treated as system input / output files, which also informs many of the fields when represented in a database. Slices contain metadata that is tangential to data in the .SC* format.

Structure

A structure is any physical entity such as a platform, bridge, tunnel etc. found along the rail corridor. Typically clearance measurements are made from the rails to the surrounding structures.

Survey

Surveys collect slices together into a unit of work that is used for logical grouping of inputs / outputs, as well as business specific data flow purposes.

Survey Method

Denotes the equipment or data collection method used to capture the raw data for a survey. The survey methods available in Cordel Connect depend on your organisation's configuration. Survey method can be used as a filter when searching surveys and slices.

Ticket

A record of a potential issue or infringement generated from processed mission data. Tickets are used to identify the location of instances where track conditions deviate from client defined engineering standards

TSID

Track Structure ID. A unique identifier assigned to a structure in Cordel Connect. The TSID links survey data (slices) back to specific real-world infrastructure.