Data Sheet

12/12/2018
3
IPAS Vehicle Tag small
● Overview
IPAS Vehicle Tag is a safety-assisting device which prevents collisions between pedestrians and vehicles
by signaling dangers in 2 way communication to both drivers and pedestrians in industrial working site.
Signal processing tag determines the distance from the vehicle tag to the object based on the time
delay of the return signal. The tag can be configured to a caution and a warning zone.
When a pedestrian enters into the caution and danger area of the vehicle tag, the sound alarm comes
out from the indicator connected with the vehicle tag.
The two zones are factory pre-set to default distances; they can be reconfigured for different distances
using buttons on IPAS Indicator installed with the vehicle tag. The tag and the indicator can be
connected using IPAS Cable Harness.
The sensitivity was pre-calibrated at the factory, assuming that the detecting field will be clear of
obstacles. The sensitivity cannot be adjusted by user’s handling.
Figure 2. IPAS Vehicle Tag Detecting Distances
A
B
Danger Area
Caution Area
Minimum Distance Maximum Distance
A
1m 10m
B
1m 10m
※ A must be set-up lower than B (A＜B)
Hysteresis, applies to IPAS, is a dynamic lag between an input and
an output that disappears if the input is varied more slowly; this is
known as rate-dependent hysteresis. However, phenomena such as
the magnetic hysteresis loops are mainly rate-independent, which
makes a durable memory possible.
Systems with hysteresis are nonlinear, and can be mathematically
challenging to model. Some models such as the Preisach model
(originally applied to ferromagnetism) and the Bouc-Wen model
attempt to capture general features of hysteresis; and there are
also phenomenological models for particular phenomena such as
the Jiles-Atherton model for ferromagnetism.
Figure 3. Hysteresis