Skip to content

Latest commit

 

History

History
116 lines (97 loc) · 3.13 KB

Readme.md

File metadata and controls

116 lines (97 loc) · 3.13 KB

LabVIEW DAQ Application Template

Usage

  1. Install LabVIEW 2021 or later
  2. Open the lvproj
  3. Open Main.vi
  4. Run

Preview

Main UI

Configuration

  • Channels
    • name
    • device
    • sensor
    • calibration
  • Graph
    • plot scaled data
    • small range Y axis
    • large range Y axis
  • Timing
    • software-timed intervals
    • one sample per interval
    • intervals can be repeated and sequenced
    • additional samples on-button-click while running
  • Logging
    • unscaled data
    • CSV format
      • sensor count
      • starting datetime
      • sensor table with rows of calibration coefficients
      • data table with rows of unscaled data samples
    • create or overwrite log file
    • append to existing log file
    • autoname with timestamp

Data

These snippets are from the example Jupyter notebook.

sensor count,3
datetime,2023-05-13T11:44:42.804-07:00
name,Vex,CF,X0,Units,Sensor,IO Device
sim1,1.0000,1.0000,0.0000,V,Voltage,9219
sim2,1.0000,1.0000,0.0000,mm,Voltage,9219
sim3,1.0000,1.0000,0.0000,lb,Load,9219
timestamp,sim1,sim2,sim3
2023-05-13T11:44:42.840-07:00,0.0389,1.0375,2.0370
2023-05-13T11:44:43.869-07:00,0.7953,1.7660,2.7532
2023-05-13T11:44:44.989-07:00,1.2240,2.2297,3.2119
2023-05-13T11:44:46.074-07:00,1.4414,2.5315,3.5226
2023-05-13T11:44:47.177-07:00,1.6061,2.7468,3.7610
2023-05-13T11:44:48.270-07:00,1.8084,2.8984,3.9441
2023-05-13T11:44:49.370-07:00,2.0461,3.0124,4.0889
2023-05-13T11:44:50.475-07:00,2.2388,3.1089,4.2042
2023-05-13T11:44:51.575-07:00,2.3281,3.2037,4.2968
2023-05-13T11:44:52.675-07:00,2.3516,3.3082,4.3743
2023-05-13T11:44:53.778-07:00,2.4028,3.4257,4.4433
2023-05-13T11:44:54.877-07:00,2.5328,3.5511,4.5088

import pandas as pd

data = pd.read_csv(
    "data_log.csv",
    header=6,
    index_col="timestamp",
    parse_dates=["timestamp"],
)

print(f"shape{data.shape}")
axes = data.plot.line()
data.shape(181, 3)

data log plots

Changelog

Baseline

LabVIEW sample project: Continuous Measurement and Logging

Changes

  • Make the root container for Aquired Data.ctl a cluster
  • Use typedefs in the data queues/notifiers rather than raw constants
  • Add 'Exit' user-action to main UI error handler
  • Add overwrite-log/append-log/timestamp-log tab control to Settings Dialog
  • Switch to spreadsheet log format
  • Add Diagnostics subsystem loop
  • Add Interval Timer subsystem
  • Add "Save Now" button and behavior
  • Add Acquisition Status loop and countdown
  • Add multi-channel support
  • Implement data calibration
  • Implement per channel null-offset
  • Plot scaled data, log unscaled data
  • Add axis settings to Settings Dialog
  • Add log file path control to main UI
  • Detect software and hardware resources on host system
  • Add dynamic DAQmx API detection and use
  • Add plugin selection to Settings Dialog