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LoRaWAN Smart Building MOTION - Guide utilisateur / User guide version V1.0.0
2.1.5 Three transmission modes to meet needs
The device can detect presence in a room, save this information and send it in three transmission modes.
Periodic transmission
Periodic transmission allows data to be
collected in a specified period of time,
Définition
to be saved and sent on a regular basis
for analysis over time.
JI want to take a reading of my bright-
ness rate every half hour and find out
the number of detections carried out
during this period.
Practical ex-
I want to minimize my number of trans-
ample of use
missions to optimize my autonomy, so
I want to put the maximum number of
readings in each frame without losing
data.
Period of acquisition
•
= 900 (900 sec x2 = 1800 seconds
i.e. 30 minutes)
•
Backup period
= 1(1 backup at each reading)
Period of transmission
•
= 15 (15 backups per frame)
• Presence alarm (S330)
Associated
= 0 (alarm disabled)
configuration
• Brightness rate alarm (S340)
= 0 (alarm disabled)
In the use
Paragraph 2.1.5.01
CAUTION: The information sending capacity will depend on the network used. Here the case considered works with a technology LoRaWAN.
The complete list of registers can be found in paragraph 3.4.
Period of transmission = number of backups (logs)
between each transmission
S301 = 12 X 1 hour = 12 hours
Period of ac-
Backup period = number of readings
quisition S321
(polls) between each backup S320 = 6 x 10min =
= 10min
Reading/
Log backup
Poll
Transmission over threshold
The transmission of a frame over
threshold makes it possible to read
data - according to a given period and
to send an alarm only if one of the
thresholds is exceeded.
I want the product to alert me if it
makes more than 100 detections in the
room (all cumulative) or if the luminosi-
ty is less than 20% (almost off).
Brightness
(S321)
•
= 300
(300 sec = 10 minutes)
(S320)
•
Period of transmission
= 0 (no periodic sending)
(S301)
• Presence threshold definition (S330)
= 100 (number of presences detected
before sending alarm frame)
• Type of luminosity alarm (S340)
= 1 (low threshold)
• Low threshold (343)
= 20 (as a percentage)
• Low threshold hysteresis (S344)
= 5 (as a percentage) the alarm is
raised only if the brightness rises by
+ 5% compared to the threshold
Paragraph 2.1.5.02
1 hour
acquisition period (S321)
(S301)
Sending
Periodic transmission and over
threshold
Mix of the two modes in order to be
able to poll regularly to receive alerts if
the threshold is exceeded and to save
the information regularly to make the
analysis over time.
I want to know the brightness rate of
my room during the day.
For this my product will send me an
hour by hour brightness reading twice
a day. However, I want to be alerted if
the brightness of my room drops below
20% or if the number of detections
exceeds 1000 in my room.
Period of acquisition
•
(S321)
= 300 (300 sec =10 mins)
•
Backup period
(S320)
= 6 (6 x 10 mins = 1 hour)
• Period of transmission (S301)
= 12 (12 X 1 hour = 12 hours)
Presence threshold definition
•
(S330)
= 1000 (number of presences detected)
• Type of luminosity alarm (340)
= 1 (low threshold)
• Low threshold (343)
= 20 (as a percentage)
• high threshold hysteresis (S330)
= 5 (as a percentage) the alarm is
raised only if the brightness rises by
+ 5% compared to the threshold
See schema below
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