LTV log

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Click Open log CSV or drop a log CSV anywhere on this page. The track map and all the graphs appear once a log is loaded.

Reading

Logger time

Fatigue v-RMS

Friction a-RMS

Impact a-PEAK

Crest

Displacement p2p

Speed

Latitude

Longitude

Turn on, then press on the track and drag along it to select a stretch. Zoom the map with + and − (or Ctrl + mouse wheel) for fine detail.

Map points Show pointsPick a type, then click the map to drop it. Click a point to edit it, or drag it to move it.

Finds every place the machine stopped briefly between driving, shown as dashed red circles. Click one to make it a stop sign.

Points on this log and what the machine did there

A pass is each time the track comes within 20 m of the point. Full stop = GPS speed down to 2 km/h or less (GPS speed rarely reads exactly 0). Passes in both directions count, and at a traffic light a pass without a stop may have been on green.

Point	Passes	Result	Lowest speed per pass, km/h	Highest a-Peak, m/s²

Satellite backdrop Opacity Change image

Track extent ≈ · centre · grid · red dots = fatigue ≥ 300 Open selected point in Google Maps satellite

ISO 2631-1 check indicative

Friction a-RMS converted to m/s² and compared with the whole-body vibration action and limit values.

Daily exposure, hours ISO/TR 25398 reference, m/s²

Every event and peak

Sensitivity Show

Each event is numbered on the map and graphs with a pink diamond at its peak reading. Click a row to zoom to it. Seconds are estimated from the reading's place in its logged minute.

#	When	Type	1-s RMS, m/s²	a-Peak, m/s²	Crest	v-RMS, mm/s	Speed, km/h	Level	ISO 2631-1 reference

Indicative only, not a compliance measurement. The ifm VMB301 values are unweighted (1 to 7,500 Hz, all three axes combined) and taken under the seat, while ISO 2631-1 uses frequency-weighted seat acceleration (Wk vertical, Wd horizontal). Raw log values are converted with the sensor's resolution: acceleration 1 count = 0.01 m/s², velocity 0.1 mm/s, crest 0.1. Action and limit values: 0.5 and 1.15 m/s² A(8); VDV 9.1 and 21 m/s^1.75 (EU Directive 2002/44/EC). ISO 2631-1 health guidance caution zone for 8 h: 0.45 to 0.9 m/s². eVDV = 1.4 × a_eq × t^¼. ISO/TR 25398 gives typical values per machine type; enter the one for this machine to compare.

Compare passes

Every recording that drove the selected stretch in the same direction, from this log and the comparison logs, overlaid by distance along the stretch.

Logs in the comparison

Add a log to compareGive each log its machine (for example D-series or E-series). Logs with the same machine name are averaged together.

Days in this log

Set the machine for each day. Days with the same machine are compared together; a day you leave out is dropped from the map, the graphs, the event list and the comparison.

Day	Logged	Readings	Machine	Leave out

Within Select a stretch first: drag along the track with ✂ Snip on the map, or use the timeline snipper.

LTV log

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ISO 2631-1 check indicative

Every event and peak

Compare passes

All logged data along the track

Snippets