BOXFINDER (0001) User’s Manual
RSA “Galileosky”, LLC.
Page
11
8.1.1.
Mean value and discrete event generation
Let us consider the example with the
following input settings (see left-hand figure):
Filter type is 0;
Filter length is 5;
Logical one zone range is 8-33V;
Logical zero zone range is 0-3V.
The mean value is calculated continuously
and is put into the corresponding field IN.
At the same time, it is continuously checked
whether the calculated value belongs to the
logical zero and logical one range.
If it is in the range 8-33V, the corresponding
bit will find itself in the Status of Inputs field
and a point will be recorded.
At value coming into the indifference zone
(3V-8V), the former bit value will be saved to
the Status of Inputs field.
If the value is in the logical zero zone (0V-3V),
the corresponding bit in the Status of Inputs
field is set to zero.
Thus, we can see that the given bit changes
its state only in response or nonresponse
signal zones.
Example 2 (right-hand figure).
In contrast to example 1, response and
nonresponse zones have changed places.
8.1.2.
Frequency count
To measure frequency in some sensors it is needed to pull frequency output from the sensor to plus sensor
supply with 1kOhm resistor. Otherwise, frequency count will be impossible.
8.2.
Determination of strike
All devices can determine the Tracker’s strike, and at that moment the Tracker leaves sleepmode. Strike is
exceedance of set acceleration limit on any accelerometer axis.
Response zone,
logical 1
33
0
3
Nonresponse
zone, logical 0
Indifference zone
8
V
Nonresponse
zone, logical 0
33
0
3
Response zone,
logical 1
Indifference zone
8
V
