The concept of the electronic part of the device and the information-analytical system
Objective of the project
Within the framework of the project, it is planned to create a radonometer and an information-analytical system integrated with this device in order to prompt data receipt and measurement control.
Functionality of the electronic part of the device
It is planned to develop the electronic part of the device, which will be built on the modern system engineering basis and one of the modern mobile processors with integrated memory. This board will collect and process the pulse signals of the device according to the recorded program. Then it will provide the measurement results in one form or another. The functionality of the device provides:
- Measurement results and concentration conclusions display on the built-in LCD screen
- Measurement archive storage (GPS related) in the built-in memory with access to the data archive.
- Humidity and temperature (optional) measurement with further recording to the archive
- Transfer measurement data via Bluetooth to the mobile phone program
- Transmission of measurement data via GSM \ 3G channels via the built-in SIM card to an external server for further integration, analysis and measurement report creation.
The device must also be equipped with a capacious battery to support its operation in case of a power failure. The capacity and type of battery will be determined later depending on the of the main measuring module consumption power.
For the above tasks, the following modules will be integrated into the board:
– high-frequency mobile data processor
– internal flash memory with the ability to replace and expand (from 8 GB)
– built-in GPS controller
– built-in Bluetooth controller
– built-in mobile interface for the ability to work with SIM cards
– USB port for connecting to PC
– battery controller.
– LCD screen visualization module of the device
It is planned to develop system and application (web-oriented) software that significantly extends the data storage and processing functionality of the device.
- System software – will allow you process the received primary pulse signals in real-time and store them in the built-in database, as well as control the device (start / stop measurements), processing and store various events – low battery, device damage, high humidity \ temperature – optional, high radon level, measurement failure, etc. Also, this software is responsible for displaying data on the built-in LCD screen – the time of the beginning/end of the measurement, the remaining time until the end of the measurement, current concentration, temperature, humidity. At the end of the measurement, the final value is displayed on the LCD screen, and also, depending on the result, one of the LEDs (that will be located near the screen) lights up – red, yellow or green. All the measurement process data and the final result will be recorded to the internal database, which will be stored on the built-in flash memory. The database format is SQLite.
- Application software will be web-oriented. It is assumed that the data on the measurements and the operation process will be transmitted in real-time to an external “cloud” web-server, where application software will be installed. It will consist of an extended database that stores data from all devices connected to the system. Also, the web application software includes a geo-analytical system that displays data (matching to the coordinates on the map) and analytical reporting module that allows you to generate various types of reports on the measurements taken.
- A mobile application that provides advanced instrument control (configuration, entering data about location of the device, GPS coordinates, additional information about the measurements, object measurement data, etc.). It also allows reading data via the Bluetooth protocol directly from the measuring device, allows primary analyzing and storing collected data.
An example of an information-analytical system with a radonometer work
The principle of operation of the device(s) in the information-analytical system framework is:
- Devices are placed in the appropriate amount in the premise(s) in which the measurements are planned to be carried out,
- Then the operator makes them connected to the power supply or checks the battery charge level (it is supposed to equip the device with a capacious battery, which should be enough for several measurement cycles).
- Further (in the mode of working with the information-analytical system, if necessary), the device is automatically connected via Bluetooth to the operator’s mobile phone or tablet (or via a USB cable to the laptop).
- On a mobile device, the operator enters the room volume in cubic meter (or LxWxH – tentatively), the desired level of accuracy and the device automatically determines the measurement time ?????. The serial number of the device is determined automatically and is being entered into the database. Also the device placement coordinates are automatically determined (in case of GPS signal presence). It is also possible to enter additional parameters such as the object (room) in which the device is located, photo materials, type of measurement, etc. After entering this data downloads into the device database and also is being automatically sent to an external cloud server of the information-analytical system.
- After that, the operator can start the measurement by pressing a button on the device or in a mobile application. Depending on the parameters set, the device starts the measurement. At the same time, the device automatically tries to connect to the server via the GSM \ 3G channel and transmits information about its status and measurements.
- The operator leaves the room and the device takes measurements automatically transmitting data to an external server (if connected).
- At the end of the measurement cycle, the device sends a message to the server, as well as to the integrated mobile application on the operator’s mobile device (half an hour before the expected end of the measurement). The operator will be able to enter the room and pick up the device (when the measurement is completely completed).
- Measurement data (and additional parameters) is recorded into the device database, sent via GSM \ 3G channel to an external cloud server. Then they are automatically processed, recorded in the archive. Multi-step access by users with various access roles can be organized – from monitoring the device in real-time (and additional parameters, such as temperature, humidity, etc.) to viewing automatically generated reports on the measurements taken: by client, premises, territory, specific device, etc. Geoanalytical information about radon concentrations distribution by areas where measurements occurred (exemplary screenshot below)
- There is also an operational control mode of all geo-referenced devices in operation (via the web interface). Those, it is possible to look where there are taking measurement devices at the moment in conjunction with the map.
Conclusions and Prospects
Creation of an integrated device with a modern information-analytical system, controlled by mobile devices opens up great opportunities for automated measurement of the radon level in various premises – both new and existing. This system will significantly speed up the measurement process (simultaneous control and automatic receipt of data from many devices), optimize reporting and analytical information, collect a wider range of radon concentration data matching various parameters, simplify the measurement process, reduce the human factor in the measurements and increase the commercial effectiveness of the measurement process.
This device, together with developed electronics and an information-analytical system, can be in demand on the worldwide market because it can have a number of unique competitive advantages.