Libelium Comunicaciones Distribuidas S.L. PARKING-V1 Benutzerhandbuch
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Frames
7.1.2. Keep-Alive frame
This frame is used to indicate that the parking slot has not changed, but the node is still working.
Byte
Name
Description
0
Basic data
Detailed description in section “Frame”
1
Frame counter
Detailed description in section “Frame”
2
Timestamp (hh)
Current hours
3
Timestamp (mm)
Current minutes
4
Temperature
Temperature (Celsius degrees) from the node's internal sensor. The
value of temperature is a signed integer.
value of temperature is a signed integer.
5
X axis measurement MSB Raw value from the sensor associated to the X axis. The value stored in
these two bytes is a 16-bit value in 2’s complement form,.
6
X axis measurement LSB
7
Y axis measurement MSB Raw value from the sensor associated to the Y axis. The value stored in
these two bytes is a 16-bit value in 2’s complement form.
8
Y axis measurement LSB
9
Z axis measurement MSB Raw value from the sensor associated to the Z axis. The value stored in
these two bytes is a 16-bit value in 2’s complement form.
10
Z axis measurement LSB
Figure : Keep-Alive frame structure
7.1.3. Daily update frame
This frame is sent daily at 1 AM. It contains a little summary.
Byte
Name
Description
0
Basic data
Detailed description in section “Frame”
1
Frame counter
Detailed description in section “Frame”
2
Sensor measurements MSB
Unsigned 16 bit counter. It stores the times that the sensor is used
in the last 24 hours.
in the last 24 hours.
3
Sensor measurements LSB
4
Sigfox transmissions MSB
Unsigned 16 bit counter. It stores the times that Sigfox radio is
used in the last 24 hours.
used in the last 24 hours.
5
Sigfox transmissions LSB
6
LoRaWAN transmissions MSB
Unsigned 16 bit counter. It stores the times that LoRaWAN radio is
used in the last 24 hours.
used in the last 24 hours.
7
LoRaWAN transmissions LSB
8
Resets
Number of resets generated in the last 24 hours
9
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10
Reserved
Reserved bytes. Do not consider.
Figure : Daily update frame structure
This frame can be deactivated using the Plug & Sense! Smart Parking USB Programmer or via radio, with the
Remote Manager, setting to 0 the enable/disable daily frame bit.
Remote Manager, setting to 0 the enable/disable daily frame bit.
The daily update frame is very special because the node waits for a response after it is sent. This response is useful
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