More about data synchronization – Route Monitoring 2

Route Monitoring 2 enables data synchronization between the field team running the Route Monitoring 2 (RM2) on Android devices and the server-side decision-maker‘s software. Synchronization is achieved through the secure exchange of JSON packages.

The application supports two directional synchronization categories:

From RM2 towards the server, synchronization of:
- Measurements (including remarks by the field team) with geolocalized measured dose rate data points,
- the current location of the field team using the RM2.
From the server towards RM2, synchronization of:
- New missions:
  - Definition of the target measuring instrument and field team (connected to the unique identification of the Android device where RM2 runs),
  - definition of measurement groups (title, definition of the collection point including geo-location and address),
  - measurements (title, geo-location of the measurement – to offer navigation to the user, detailed instructions for the specified mission, actions with locations and extra instructions, etc.).
- New exercise missions (definition of point sources, including their location, type of nuclide, activity, reference date, etc.). Note: Radioactive sources are not visible to the field teams; only the dose rate value is computed. This calculation takes into account the distances between the field team and the simulated point sources, along with their specifics, and adds the result to the background value. The computation includes the dose conversion factor and attenuation in the air, specific to the radionuclide [1]. If there is no radioactive source added, only the background dose rate is calculated. This follows a normal distribution around a predefined value, accounting for statistical fluctuation (0.08 μSv/h, σ=0.01 μSv/h).

The server-side synchronization application is written in PHP 7.0 and connected to a MySQL database. The application can be provided upon request. The protocol is well-defined and documented, allowing customers to seamlessly integrate synchronization into their own dashboard applications.

[1] D. Delacroix, J. P. Guerre, P. Leblanc, C. Hickman, RADIONUCLIDE AND RADIATION PROTECTION DATA HANDBOOK 2002, Radiation Protection Dosimetry, Volume 98, Issue 1, 1 January 2002, Pages 1–168, https://doi.org/10.1093/oxfordjournals.rpd.a006705