Channel Name Definitions - Ref C to Road Lines
| Channel Name | Description | Unit |
|---|---|---|
|
RangeC-L1 |
The lateral distance between Line Reference Point C to Line 1. This channel is measured perpendicularly to the surveyed line.
|
m |
| TTCC-L1 |
The Time To Cross of Line Reference Point C crossing Line 1 given the vehicle's current lateral speed towards to the line.
|
s |
| LatSpdsvC-L1 |
The Lateral Speed of Line Reference Point C towards Line 1.
|
kmh |
| AnglesvC-L1 |
The Angle between the Line Reference Point C and the tangent of Line 1.
|
° |
| Status-sv |
The DGPS Status of the Subject Vehicle.
|
|
| CurvatureL1-C | The Curvature of Line 1 at the point closest to Line Reference Point C. | 1/m |
| RangeC-L2 |
The lateral distance between Line Reference Point C to Line 2. This channel is measured perpendicularly to the surveyed line.
|
m |
| TTCC-L2 |
The Time To Cross of Line Reference Point C crossing Line 2 given the vehicle's current lateral speed towards to the line.
|
s |
| LatSpdsvC-L2 |
The Lateral Speed of Line Reference Point C towards Line 2.
|
kmh |
| AnglesvC-L2 |
The Angle between Line Reference Point C and the tangent of Line 2.
|
° |
| CurvatureL2-C | The Curvature of Line 2 at the point closest to Line Reference Point C. | 1/m |
| RangeC-L3 |
This channel is measured perpendicularly to the surveyed line.
|
m |
| TTCC-L3 |
The Time To Cross when Line Reference Point C crosses Line 3 given the vehicle's current lateral speed towards to the line.
|
s |
| LatSpdsvC-L3 |
The Lateral Speed of Line Reference Point C towards Line 3.
|
kmh |
| AnglesvC-L3 |
The Angle between Line Reference Point C and the tangent of Line 3.
|
° |
| Curvature3-C | The Curvature of Line 3 at the point closest to Line Reference Point C. | 1/m |
The lateral distance between Line Reference Point C to Line 3.
Determining Range From a Curved Line
When testing around a curved lane, the VBOX firmware takes measurements from the corner position to the nearest perpendicular tangent line to the curved lane edge, as shown below.
