OA18496A - Telematic multisensor for pollution mapping. - Google Patents

Abstract

The telematics multisensor consists of: - a sensor module (s), depending on the parameter (s) to be measured; - a microcontroller of the AVR or Raspberry family with LCD; - a GSM 2G / 3G & 4G serial port modem; - an interconnection bus for the different modules; - a power supply box. It makes it possible at lower cost in a completely modular way by replacing one or more sensor modules while modifying the program in the microcontroller to carry out one or more measurements simultaneously. Equipped with a unit for real-time data transmission by SMS or internet for the purpose of evaluating, measuring and controlling the phenomena that surround us such as precipitation, pollution, bush fires, river levels, etc. ... In addition, the data collected is recorded in a centralized database which allows a WEB GIS application to represent the results in real or deferred time with additional processing if necessary, in order to reduce the workload processing units embedded in the multisensors consequently reducing their energy consumption. The WEB GIS application modeled by SVD and SLD approaches has two versions: an offline version using maps stored in a local database and an online version using maps produced by Google Map but requiring an internet connection to do so. Thus we guarantee the availability of the platform.

Description

DEVICE FOR MONITORING PHYSICAL PARAMETERS:

Telematics and SIG-WEB multisensor

FIELD OF THE INVENTION TO WHICH THE INVENTION RELATES

The present invention relates to a device for simultaneously measuring multiple physical quantities such as pollutants, precipitation, drugs, petroleum and nuclear waste; their remote operation via a telecommunications network; associated with the modeling and the implementation of a web application equipped with a geographic information system making it possible to map the results of environmental characteristics (air quality, precipitation rate, etc.) associated with health data in the case of disasters.

PRIOR ART

From the publication "hal-00403l06v2" [I] is known an intelligent sensor so the focus is only on the hardware part. However, a poor representation of the results can call into question the quality of such a product. In addition, the different components are usually mounted on a single circuit which can reduce its flexibility in the case of component changes. Likewise, the components are not always adapted to our environment. The communication modules are low speed and short range. We have therefore chosen to design our telematics multisensors ourselves, which have all the advantages of intelligent sensors. In addition, our multisensors are completely modular, at a lower cost compared to similar products on the market, equipped with high-speed, ergonomic communication systems, with components adapted to our environment. Last but not least, emphasis was placed on the development of a web sig (geographic information system) application to better visualize the results on a map with indicators, graphs, curves, among others.

[I] Florent Brissaud, Dominique Charpentier, Anne Barros, Christophe Bérenguer. Intelligent Sensors: New Technologies and New Problems for Operational Safety. Risk Management and Operational Safety, Lambda-Mu 16, Oct 2008, Avignon, France. Institute for Risk Management, pp.3A-2,2008.

BRIEF DESCRIPTION OF THE INVENTION

The subject of the invention is a device for measuring physical quantities which comprises a set of sensors and communicating by radio messages to observe and control certain phenomena of the environment studied and the implementation of a web application provided with a system. geographic information allowing the mapping of the results of environmental characteristics (air quality, precipitation rate, etc.).

Advantageously, the device firstly comprises, in the same reduced volume, the sensor (s), the signal conditioning circuits, the data processing circuits (internal calculation unit) and bidirectional communication interfaces allowing them to communicate with the outside in order to achieve a specific objective.

Finally, the web platform also gives us the possibility of processing pollutants from the various sites observed, which may be, for example, crossroads in relation to health centers. Depending on the site observed (crossroads for example), the pollutant content varies.

The platform is very flexible. Thus, we can also assess the content of a pollutant in one or more sites. Managing pollution requires analyzing its real impact on the population. Thus, we analyzed the diseases linked to atmospheric pollution in the various health centers. The data is time-stamped which also allows filtering according to a specific period. Figure 6 shows the diseases from 2009 to 2015 in tabular form. Other representations are in the form of a curve or histogram are possible. You can make a combination of these three shapes (table, curve and histogram).

According to various characteristics of the invention, the device comprises an increasingly smaller black box due to the miniaturization of electronic components and the development of micro sensors; with an electrical input-output connector and sometimes one or more standard mechanical connectors to connect the sources of the physical quantities involved.

The advantages are numerous:

- increase in precision (approximately 10 times more compared to conventional sensors);

- automatic maintenance (ability of a sensor to evaluate its operating state and to diagnose the element possibly in malfunction), easy and targeted (failure alarms are classified, in fact the failure information to be transmitted is not the same for the operator, the foreman and the maintenance technician);

- installation near the data source of an information processing system;

- remote configuration (the memory of the calculation unit can be reprogrammed);

- mounting of several different sensors on the same bus;

- use of a single transmitter for all sensors;

- increased reliability;

- data transmission (transfer of measurements, commands, communication of signal processing results);

- cost hardly greater, or even less, than that of a conventional sensor of equivalent precision.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be better understood by studying a particular embodiment taken by way of non-limiting example and illustrated by the appended drawings, in which:

- Figure 1 shows an embodiment of the device

- Figure 2 shows a perspective view of the multisensor

- Figure 3 is a partial sectional view of Figure 2

- Figure 4 shows another embodiment of the device

DETAILED DESCRIPTION OF THE INVENTION

With reference to FIG. 1, the device in accordance with the invention comprises a telematic multisensor and a sig web application deployed in a server connected to a modem.

The multisensor consists of:

- A sensor module (s), depending on the parameter (s) you want to measure;

- A microcontroller with LCD display;

- A 2G / 3G & 4G serial port modem module;

- An interconnection bus between the different modules;

- A food box.

The sig web platform consists of:

- A 2G / 3G & 4G modem message monitoring module;

- A SIG-WEB module (online & offline).

As shown in the figures, the multisensor comprises an element (t) which connects the different modules together; an element (2) which, thanks to your built-in SIM card, allows you to access an operator's network and use services such as SMS for sending SMS or internet for data transmission; an element (3) which enables the wave state of an observed physical quantity to be transformed into a digital quantity which can be communicated remotely to a processing station, therefore a computer; an element (4) which is powered at 5V with usual chargers on the market. and provides the necessary energy for the various modules; an element (5) which displays the measured data and an element (6) which, thanks to the program it contains, allows you to perform the task (s) that we have configured. The GIS-WEB application is modeled using the SVG (2D graphics description language in XML) and SLD (Styled Layer Descriptor) approaches of the Open Geospatial Consortium (OGC) web services and deployed in a server which is the element (7) which includes a short message monitoring module and a SIG-WEB module in two versions (offline and online). On the client side, in addition to the WEB browser, Plugins (SVGVIEW and SLDVIEW for the browser) downloadable from the SIG-WEB application interface.

The 2G / 3G & 4G USB port modem message monitoring module has several functions:

- A data processing functionality allowing us to configure the 2G / 3G & 4G modem on the server side;

- A 2G / 3G & 4G short message sending feature allowing us to test whether the modem is actually sending you message or messages;

- An alert feature allowing us to automatically inform your decision-makers;

- A history feature allowing us to see short messages sent to decision makers or received from the sensor module.

The SIG-WEB module like any other site presents information to Internet users, with the difference that this information is georeferenced here. The pollution sig-web presents the map of Yaoundé with the various administrative and public centers followed by cases of diseases linked to atmospheric pollution; and especially the concentration of certain pollutants in your various crossroads of the city.

In the mode of operation of figure 4, we just added other sensors to measure other physical quantities.

INDUSTRIAL APPLICATION

The device according to the invention is particularly intended for monitoring phenomena. For example: atmospheric pollution (measurement of gases and fine particles), bad weather (measurements of precipitation), the environment of industrial processes (measurements of electromagnetic signals), vehicle tracking (measurement of positions and movements ), etc ....

Claims (6)

1. Telematic multisensor for pollution mapping comprising: - A pollution sensor module (s) (CO2, CO and LPG) configured to collect data on air quality; - An AVR-MT-128 microcontroller from the ATmega family configured for data processing with an LCD display; - An interconnection bus configured to connect the sensor module (s) and the microcontroller; - A 2G / 3G & 4G modem module configured for the transfer of measurement data; said module consists of a 2G / 3G & 4G serial port modem in which a SIM card is inserted and which can be interconnected to the AVR-MT-128 microcontroller from ATmega via a DB9 male female serial cable; - A data reception module configured to receive measurements; said module consists of a 2G / 3G & 4G modem USB port connected to a server; - An SMS monitoring module configured for the functions: o View messages o Send messages o Alerts to specific people - A power supply box configured to supply energy to the various elements of the multisensor; - A Web GIS module based on OGC web services (WMS, WFS, WCS and SLD) configured to present the Yaoundé map with the different cases of diseases linked to air pollution by administrative and public centers; and especially the concentration of certain pollutants in the various crossroads of the city; all of these elements cooperate in order to observe and control certain environmental phenomena. 2. Telematics multisensor according to claim 1, characterized in that the SMS monitoring module operates via a connection from the 2G / 3G & 4G modem USB port to the PC and using a Java monitoring application developed for this purpose. 3. Telematic multisensor according to claim I characterized in that the S1GWEB module comprises: - Required software (Postgres SQL, PostGis, Android Studio, Geoserver); - An S1G-WEB application (offline); * A SIG-WEB application (online) via Google Map API. 4. Telematic multisensor according to claims 1 and 3 characterized in that the GIS-WEB application contains a georeferenced map of the city of Yaoundé. 5. Telematic multisensor according to the preceding claims, characterized in that it contains a module for adding other layers of geographic information. 6. Telematic multisensor according to the preceding claims, characterized in that it contains a module for automatically adding new sensors.