MVT Command — Movement Thresholds

Movement and vibration detection with 12 configurable thresholds per axis.

What is it for?

Use case	Description
🔒 Anti-theft system	Detect when the vehicle is moved without authorization
📳 Vibration detection	Identify tampering or towing attempts
🚛 Cargo monitoring	Alert sudden movements in freight transport
⚠️ Directional alarms	Differentiate movement by axis (forward, lateral, vertical)

Description

Configures movement detection thresholds based on accelerometer readings. Allows defining 12 independent thresholds for the 3 axes (X, Y, Z) in their positive and negative directions. Generates MVXP, MVXN, MVYP, MVYN, MVZP, MVZN signals as triggers.

Features

12 configurable thresholds
X, Y, Z axes (positive/negative each)
Differential detection of movement
Independent signals per axis and direction
Ideal for anti-theft and movement detection

Commands

Configure thresholds


SMVT xx yy zz

Parameters:

xx: X-axis threshold in tenths of G (00-99)
yy: Y-axis threshold in tenths of G (00-99)
zz: Z-axis threshold in tenths of G (00-99)

Query thresholds


QMVT

MVT Signals

Available edges

Signal	Activation	Description
`MVXP+`	X-axis positive exceeded threshold	Forward longitudinal acceleration
`MVXP-`	X-axis positive below threshold	Returned to rest
`MVXN+`	X-axis negative exceeded threshold	Backward longitudinal acceleration
`MVXN-`	X-axis negative below threshold	Returned to rest
`MVYP+`	Y-axis positive exceeded threshold	Left lateral acceleration
`MVYP-`	Y-axis positive below threshold	Returned to rest
`MVYN+`	Y-axis negative exceeded threshold	Right lateral acceleration
`MVYN-`	Y-axis negative below threshold	Returned to rest
`MVZP+`	Z-axis positive exceeded threshold	Upward vertical acceleration
`MVZP-`	Z-axis positive below threshold	Returned to rest
`MVZN+`	Z-axis negative exceeded threshold	Downward vertical acceleration
`MVZN-`	Z-axis negative below threshold	Returned to rest

All edges have positive (+) and negative (-) versions for detecting start and end of movement.

Compatibility

💾Firmware v1.08.00

SPLegacy

ULLegacy

💾Firmware v1.00.00

SP-IOT

SM-IOT