ContinuousClock

Generates a continuous time signal that starts counting from a specified time.

A clock component that outputs a continuously increasing signal starting from a specified time. The output equals the offset value until the simulation time reaches start_time, after which it increases linearly with time. The output value is calculated as offset + (time - start_time) when time exceeds start_time, otherwise it remains at the offset value.

This component extends from Signal

Usage

ContinuousClock(start_time=0.0, offset=0.0)

Parameters:

Name	Description	Units	Default value
start_time	Time at which the signal starts changing from its offset value	s	0
offset	Constant value added to the signal output	–	0

Connectors

• y - This connector represents a real signal as an output from a component (RealOutput)

Behavior

$$\begin{array}{rl}y\left(t\right)& =ifelse(\mathtt{start}\mathtt{\_}\mathtt{time}<t,\mathtt{offset}-\mathtt{start}\mathtt{\_}\mathtt{time}+t,\mathtt{offset})\end{array}$$

Source

# Generates a continuous time signal that starts counting from a specified time.
#
# A clock component that outputs a continuously increasing signal starting from a
# specified time. The output equals the `offset` value until the simulation time
# reaches `start_time`, after which it increases linearly with time. The output
# value is calculated as `offset` + (`time` - `start_time`) when `time` exceeds
# `start_time`, otherwise it remains at the `offset` value.
component ContinuousClock
  extends Signal
relations
  # Output equals `offset` if `time` < `start_time`, otherwise increases with time
  y = if start_time<time then offset+time-start_time else offset
metadata {"Dyad": {"icons": {"default": "dyad://BlockComponents/ContinuousClock.svg"}}}
end

Flattened Source

# Generates a continuous time signal that starts counting from a specified time.
#
# A clock component that outputs a continuously increasing signal starting from a
# specified time. The output equals the `offset` value until the simulation time
# reaches `start_time`, after which it increases linearly with time. The output
# value is calculated as `offset` + (`time` - `start_time`) when `time` exceeds
# `start_time`, otherwise it remains at the `offset` value.
component ContinuousClock
  # Real-valued output connector for the component
  y = RealOutput() [{"Dyad": {"placement": {"icon": {"x1": 950, "y1": 450, "x2": 1050, "y2": 550}}}}]
  # Time at which the signal starts changing from its offset value
  parameter start_time::Time = 0.0
  # Constant value added to the signal output
  parameter offset::Real = 0.0
relations
  # Output equals `offset` if `time` < `start_time`, otherwise increases with time
  y = if start_time<time then offset+time-start_time else offset
metadata {"Dyad": {"icons": {"default": "dyad://BlockComponents/ContinuousClock.svg"}}}
end

Test Cases

This is setup code, that must be run before each test case.

using BlockComponents
using ModelingToolkit, OrdinaryDiffEqDefault
using Plots
using CSV, DataFrames

snapshotsdir = joinpath(dirname(dirname(pathof(BlockComponents))), "test", "snapshots")

"/home/actions-runner-10/.julia/packages/BlockComponents/77kIK/test/snapshots"

Related

• Examples

• Experiments

• Analyses

• Tests

  • ContinuousClockTest