COREKINECT NATLRA1 Manuel utilisateur

NATLRA1
Marque
COREKINECT
Modèle
NATLRA1
Taper
Manuel utilisateur
NATLRA1
LoRa Based Vehicle Asset Tracker
User’s Manual
Changes or modifications not expressly approved by the manufacturer could void the
user’s authority to operate the equipment
Federal Communication Commission Statement (FCC, U.S.)
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
• This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
FCC Caution:
Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment
ISED RF Exposure Guidance Statement:
In order to comply with FCC/ISED RF Exposure requirements, this device must be installed to
provide at least 20 cm separation from the human body at all times.
Afin de se conformer aux exigences d’exposition RF FCC / ISED, cet appareil doit être installé
pour fournir au moins 20 cm de séparation du corps humain en tout temps.
NOTE: The CoreKinect LoRa Based Vehicle Asset Tracker
and location Name complies with Industry Canada RSS 247 standard. See RSS GEN 7.1.5.
The term “IC:” before the certification/registration number only signifies that registration was
performed based on a Declaration of Conformity indicating that Industry Canada technical
specifications were met. The term “IC:” before the certification/registration number does not
imply that Industry Canada approved the equipment.
Le CoreKinect LoRa Based Vehicle Asset Tracker Ve est conforme à la norme d’Industrie
Canada RSS 247. Voir RSS GEN 7.1.5. Le terme “IC:” avant le numéro de
certification/enregistrement signifie seulement que l’enregistrement a été effectué sur la base
d’une déclaration de conformité indiquant que les spécifications techniques d’Industrie Canada
ont été rencontrées. Le terme “IC:” avant le numéro de certification/enregistrement n’implique
pas qu’Industrie Canada a approuvé l’équipement.
ISED RSS Notice:
This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the
following two conditions:
1. This device may not cause interference;
2. This device must accept any interference, including interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio
exempts de licence. L’exploitation est autorisée aux deux conditions suivantes:
1. l’appareil ne doit pas produire de brouillage;
2. l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est
susceptible d’en compromettre le fonctionnement.
Theory of Operation/Technical Description
FCC ID:2ARKMNATLRA1
The device has only one user serviceable part, which is the battery. The device has a reed
switch as the only user control, which is used to trigger a position capture. All operation is self
contained. The device will only use one radio.
RF Circuit Function 915MHz
The main microcontroller assembles data packets for the Semtech SX1272 transceiver to
modulate the data using LoRa modulation. LoRa modulation is a derivative of Chirp Spread
Spectrum. The transceiver uses a pSemi 4259-63 RF switch to control if the custom trace
antenna is connected to the receive or transmit pins of the SX1272.
Antenna Setup 915MHz
The antenna is not changeable by the user, it is a copper trace in the PCB and contained within
the device enclosure. The antenna is connected to a filter network, then an RF switch (pSemi
4259-63), then either the receive or transmit filter network, then to the receive or transmit pins
on the SX1272.
Transceivers and Antennae
Chip
SX1272
Modulation
LoRa: Chirp Spread Spectrum
Antenna Gain
0dBi
TX Frequency
902.3-914.2MHz
915MHz Channels
There are 64 channels with 125kHz bandwidth each starting at 902.3MHz and increasing by
200kHz up to 914.9MHz. Additionally, there are 8 channels with 500kHz bandwidth each
starting at 903.0 and increasing by 1.6MHz up to 914.2MHz. The channel frequency specifies
the center frequency of the channel. Table shown on following pages.
The device only sends small packets of 255 bytes or less, infrequently. The device randomly
selects one of the 72 channels (0-71) when it needs to send data. Depending on the channel
selected it will use the bandwidth assigned to that channel (125kHz for channels 0-63 and
500kHz for channels 64-71). The device will send the entire packet on that 1 channel in under
400 milliseconds. The device will not attempt to transmit again until after 20 seconds have
passed (it will be a random time between 20 and 50 seconds) if another data packet has been
queued. The choice between 125kHz channel or 500 kHz channel is random, with 64 125kHz
channels and 8 500kHz channels the device is much more likely to transmit on a 125kHz
channel. The device will make sure not to reuse the last channel transmitted on when picking
the new random channel.
Steps to Transmit
1. Randomly select a channel between 0-71 making sure it was not used on the last
transmit
a. The gateway could limit this to any grouping of 8 contiguous channels when the
device joins the network, but when attempting to join the network for the first time
the device will use all 72 channels. Each block of 8 125kHz channels is assigned
1 500kHz channel. The channel blocks of 8+1 are 0-7+64, 8-15 +65, 16-23 +66,
24-31 +67, 32-39 +68, 40-47 +69, 48- 53 +70, and 54-63 +71.
2. Transmit 1 packet of data on that channel in under 400milliseconds
3. Switch to receive mode and listen for gateway to respond within 2 seconds
4. Turn off transceiver for a random time between 20-50 seconds
5. Check if another packet needs to be sent
a. if a packet is ready to send go to step 1 and repeat
b. If no packet to send, transceiver is kept off
Channel
Frequency (MHz)
Bandwidth (kHz)
0
902.3
125
1
902.5
125
2
902.7
125
3
902.9
125
4
903.1
125
5
903.3
125
6
903.5
125
7
903.7
125
8
903.9
125
9
904.1
125
10
904.3
125
11
904.5
125
12
904.7
125
13
904.9
125
14
905.1
125
15
905.3
125
16
905.5
125
17
905.7
125
18
905.9
125
19
906.1
125
20
906.3
125
21
906.5
125
22
906.7
125
23
906.9
125
24
907.1
125
25
907.3
125
26
907.5
125
27
907.7
125
28
907.9
125
29
908.1
125
30
908.3
125
31
908.5
125
32
908.7
125
33
908.9
125
34
909.1
125
35
909.3
125
36
909.5
125
37
909.7
125
38
909.9
125
39
910.1
125
40
910.3
125
41
910.5
125
42
910.7
125
43
910.9
125
44
911.1
125
45
911.3
125
46
911.5
125
47
911.7
125
48
911.9
125
Figure 1- Frequency Table
49
912.1
125
50
912.3
125
51
912.5
125
52
912.7
125
53
912.9
125
54
913.1
125
55
913.3
125
56
913.5
125
57
913.7
125
58
913.9
125
59
914.1
125
60
914.3
125
61
914.5
125
62
914.7
125
63
914.9
125
64
903.0
500
65
904.6
500
66
906.2
500
67
907.8
500
68
909.4
500
69
911.0
500
70
912.6
500
71
914.2
500
Device Specifications
Frequency
902-914Mhz
Antenna Gain
RF Sensitivity
-137dBm
Battery Type
Lithium Thionyl Chloride Non-Rechargeable –
19,000mAh
GPS Connectivity
Tri-mode GPS/Galileo GLONASS. Geofencing and
IMESS/QZSS optimization. 72 Channel
Network Protocol
LoRa
Accelerometer
3 axis, 2g/4g/8g/16g ultra low power MEMS
Temperature Range
-40 to 85C
Environmental Rating
IP68
Dimensions
94mm x 84mm x 52mm
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COREKINECT NATLRA1 Manuel utilisateur

NATLRA1
Marque
COREKINECT
Modèle
NATLRA1
Taper
Manuel utilisateur
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