Why do we all need to use CheckFox and what’s so Sigfox special about it?
All the documentation is available
About this webinar
Who is this webinar insight for?
Sales, technical pre-sales, sales, support SO’s
and integrators, IoT platforms.
30 mins presentation + 15 mins Questions & Answers session
Pavel Sodomka, CEO at Simple Hardware
1. Sigfox operators need to compare real coverage with a predicted model
2. Sigfox integrators need to measure coverage before starting PoC
3. Field workers need to measure coverage before starting ﬁeld device installation
A. Does the predicted coverage match the actual coverage?
B. Will a reference device work at the installation spot?
C. What is the attenuation between reference measurement and ﬁnal destination?
D. What is the reliability of the reception over time?
E. Does my HW device work as well as the reference device?
Aim of the measurement:
❏ A Coverage
❏ B Final place coverage
❏ C Attenuation
❏ D Reliability in time
❏ E Final HW performance
Name of the person and his qualiﬁcation:
ID of the reference device used:
Date: Time: Place:
Photos stored at:
Any remarks: (extreme weather etc.):
❏ Ensure that you are using a reference device
❏ Check the antenna not being loose and using a proper antenna
❏ Check the device voltage
❏ Take a photo of the device
❏ Decide what you want to measure and how you will evaluate the results
❏ Place the device 1.3 m above ground under open sky at least 1m away from any obstacle
❏ Hold it with vertical antenna and don't move. Ideally place the device on a tripod or holding it in your
hand should be ﬁne
❏ Take a photo of the device
❏ Take a photo of the environment
❏ Ensure you have a GPS ﬁx
❏ Select Outdoor at 1.3 meter (4.3feet) Reference - REF in Main menu
❏ Select how many Messages you want to send
❏ Ideally repeat the measurement three times shifting the device in a triangle by 8-9cm (lambda/4),
❏ Check that in the Dashboard, the predicted coverage matches roughly the measured coverage In case
the predicted coverage is much worse, please contact the local Sigfox operator immediately and
provide them with photos and GPS position
❏ Assess the results of the A aim
Final installation place measurement
❏ Do Reference measurement
❏ Do between-the-steps measurements (Indoor for indoor installations, Outdoor Ground
Level for Underground installations (parking sensors). Always take a photo
❏ Select your ﬁnal location
❏ Take a photo of the device and the environment
❏ Select location in Menu and select FInal destination measurement or Final with delay in
case the ﬁnal destination is behind closed doors or the device needs to be lowered on a
string, the measurement will start in 30 seconds
❏ Assess the results of the B Final place coverage aim
❏ In the Checkfox dashboard, compare the results to the Reference measurement and asses
the C Attenuation, then subtract the SNR
Reliability over time period
❏ Make a time series measurement at the Final destination with intervals of either
10 minutes or 1 hour
❏ Assess the D Reliability in time by accessing the message lost
Comparison with ﬁnal HW
❏ Do the Final installation place measurement with the reference device
❏ Take a photo of your Final HW in Final destination
❏ Do the Final installation measurement with the ﬁnal device
❏ Assess the E Final HW performance. Look especially at message loss and how
many repetitions of the device you see. If you see only 1 repetition in most cases
the battery design is bad, and battery doesn't have enough power to emit the
second and third repetition. Or the device antenna could be detuned and does
not perform properly.
A. Does the actual coverage match the predicted one? Same-better-worse?
B. Does the reference device work in the Final installation? Yes-no-little bit?
C. What is the attenuation of the Final installation in comparison with the
Reference measurement? Rate as a number between 0 and 70.
D. How is the long-term reliability of messages? Excellent-good-bad?
E. How does my HW perform in comparison with reference one?
What is inside the CheckFox?
GPS module for precise position
GSM module for data transmission
Memory for data logging
WiFi module for collecting MAC addresses, which is usable either for position ﬁxing
of the device or comparison between Sigfox Atlas, Sigfox Atlas WiFi, Google
geolocation public network services and others
Over the air upgradable ﬁrmware
● Sturdier construction
● Better antenna ﬁxing
● Water resilient USB-C connector
● WiFi module
● Global prepaid SIM card with €10, switchable for your own
Logic behind measurements
❖ Tell the device where you’re measuring (just a tag)
➢ Reference measurement at 1.3 m outdoor (this should match coverage prediction)
➢ Outdoor above the height
➢ Ground level
➢ Deep indoor
❖ Tell the device what you’re measuring (just a tag)
➢ Final destination
❖ Tell the device how many times to measure
❖ Tell the device whether you want to do periodic measurement
Guide the user to collect metadata before the measurement
Ideal for 2 scenarios
● Measure with the GPSwhile driving/travelling (1 min, 10 min, 60 min intervals)
● Static location over a time period measurement without the GPS (10 min, 60 min
Debate about whether budgetlink and reliability is the same in both directions
Many things described in the documentation
● Datalog update in case GSM is not present at the location
● Firmware update
● About: ID, IMEI, RC etc.
● RC2/RC4 switch
Checkfox dashboard -https://checkfox.simplehw.eu/
3 ways how to work with collected data:
● API (described in the documentation)
● Dashboard and csv and xls exports
● Dashboard and dashboard visualisations
Functions of the dashboard
1. Device setup
2. User management and rights setup
3. Data listing
4. Data export
5. Data visualisation
6. Data comparison