User Manual

June 10, 2021 Ecoh 915 Manual 1.0.3 Pag. 15 of 25
4.10. Sensor parameters
4.10.1. Parameters description and ranges
The Smart Parking Sensor has different parameters that change the timing and detection
performance of the sensor. The next table shows the sensor parameters:
Parameter
Range
Description
Sampling period
5 sec.* to 30 min.
(*minimum suggested)
Seconds elapsed between each measurement cycle
(not linear scale).
Keep-alive time
60 min* to 24 hours
(*minimum suggested)
Hours elapsed since last uplink message which
triggers a new Keep-alive frame (not linear scale).
AutoACK
1 to 7
Sensor gives itself an ACK after x retries without an
ACK from the network
Address Set
1 to 65534
Range of sensor ID (associated to park ID)
LoRa WAN Use Cases ABP
1 or 2
ABP confirmed packet and wait answer from
customer platform
ABP confirmed packet and NOT wait answer from
customer platform
LoRa WAN Use Cases OTAA
1 or 2
OTAA confirmed pack and wait answer from
customer platform
OTAA confirmed pack and NOT wait answer from
customer platform
Daily rejoin (default NOT daily rejoin)
Re-join if needed (if the gateway does not respond to
the sensor, it will join with the LoRa WAN base
parameters (14dBm @ SF12)
LoRaWAN DevEUI
8-byte identifier
Defines the device EUI used by the LoRaWAN radio
LoRaWAN DevAddr
4-byte identifier
Defines the device address used by the LoRaWAN
radio in ABP mode
LoRaWAN NwkSKey
16-byte key
Defines the LoRaWAN Network Session Key used by
the LoRaWAN radio in ABP mode
LoRaWAN AppSKey
16-byte key
Defines the LoRaWAN Application Session Key used
by the LoRaWAN radio in ABP mode
LoRaWAN AppKey
16-byte key
Defines the LoRaWAN Application Key used by the
LoRaWAN radio in OTAA mode
LoRaWAN AppEUI
8-byte identifier
Defines the LoRaWAN Application EUI used by the
LoRaWAN radio in OTAA mode