MODULAR POLLUTANT DETECTION DEVICE

Abstract

MODULAR POLLUTANT DETECTION DEVICE The invention relates to a modular pollutant detection device (10) characterized in that it comprises: - a base (20) comprising a plurality of sensors (22), at least one first receptacle (24) and at least one computer; and - at least one removable light indicator (30); the first receptacle (24) being configured to securely receive the removable light indicator (30), the plurality of sensors (22) measuring at least one piece of data relating to the environment of the modular device (10) and communicating said data to the computer, said computer (26) controlling the lighting of the light indicator (30) as a function of the piece of data relating to the environment of the device (10). Figure for the abstract: Fig.1

Description

Title of the invention: MODULAR POLLUTANT DETECTION DEVICE Field of invention

[0001] The invention relates to the field of pollutant detection. More specifically, the invention relates to the field of monitoring the presence of pollutants in an environment. The invention also relates to the field of air quality. State of the art

[0002] Devices are known from the state of the art for alerting a user to the deterioration of air quality in an environment, or to the presence of an air pollutant therein.

[0003] For example, smoke detectors are known which are generally fixed to a ceiling of a room. Such detectors are generally used to detect the presence of smoke in an environment and to emit a loud audible signal in order to alert a user of the potential presence of a fire starting. Such devices comprise for example an optical detector comprising an optical chamber equipped with a light-emitting diode and a photoelectric cell. The photoelectric cell detects the presence of smoke by reflecting the light emitted by the light-emitting diode on the smoke present in the optical chamber. Such devices also comprise a device for emitting a sound in order to warn the user of the presence of smoke. Such a device, although satisfactory for protecting people by alerting them of the outbreak of a fire, only allows an alert for people on the presence of smoke in the event of danger.

[0004] Devices are also known which comprise one or more sensors which make it possible to collect environmental data at several points in a given territory. Such systems make it possible, for example, to measure a concentration of fine particles. Such devices are generally linked to a network allowing the centralization of data which makes it possible, for example, to establish statistics on fine particle pollution. Such devices, although useful for carrying out statistical studies, are not suitable for warning users close to the sensor in real time. In addition, such devices are not adaptable, in particular to several types of operational situations. Summary of the invention

[0005] One of the objects of the invention is to resolve the drawbacks of the devices of the prior art which are described above.

[0006] To this end, the invention relates to a modular pollutant detection device which includes:

[0007] - a base comprising a plurality of sensors, at least one first receptacle and at least one less a calculator; and

[0008] - at least one removable light indicator.

[0009] The first receptacle is configured to securely receive the removable light indicator, the plurality of sensors measuring at least one piece of data relating to the environment of the modular device and communicating said data to the computer, said computer controlling the lighting of the light indicator as a function of the data relating to the environment of the device.

[0010] The modular device according to the invention therefore makes it possible to provide an environmental pollutant detector which is adaptable to several operational situations. In particular, the sensor makes it possible to provide a light indicator which is removable and therefore makes it possible to provide a light means of warning for people in the vicinity of said device when a pollutant is detected. In this way, the device makes it possible to warn a person of a risk.

[0011] Similarly, when the light indicator is not installed on the modular pollutant detection device, it allows its installation in an operational setting in which it is not desired to warn users near the device of the presence of a pollutant.

[0012] According to one embodiment, the removable light indicator comprises a plurality of LEDs, the number of lit LEDs being controlled in real time by the computer as a function of the data relating to the environment.

[0013] According to one embodiment, the light indicator is configured to emit light of several colors, the emitted color being selected by the computer according to the data relating to the environment.

[0014] According to one embodiment, the base comprises at least two second receptacles each configured to accommodate at least one sensor each measuring a piece of data relating to the environment, the computer controlling the behavior of the light indicator as a function of each piece of data relating to the environment.

[0015] According to one embodiment, the first receptacle is configured to allow the insertion of a cover making it possible to mask the light indicator and / or to replace it in the second receptacle.

[0016] According to one embodiment, the removable light indicator is clipped into the first receptacle.

[0017] According to one embodiment, the light indicator comprises a contactor configured to cooperate with a contactor of the first receptacle, the electrical power supply of the light sources being provided via the contactors.

[0018] According to one embodiment, the modular device comprises a membrane removable configured to be placed on the light indicator, said membrane being translucent and being fixed on the first receptacle.

[0019] According to one embodiment, the calculator sends the data relating to the environment to a remote server, said remote server generating at least one calculated data item relating to the data item(s) relating to the environment.

[0020] According to one embodiment, the remote server sends the calculated data to the computer, the computer controlling the lighting of the indicator light as a function of said calculated data.

[0021] According to one embodiment, the device comprises a transmitter / receiver configured to transmit the data relating to the environment and / or to receive the calculated data to the remote server, said transmitter / receiver being configured to transmit and receive data by wifi and / or by bluetooth and / or by cellular network. Brief description of the figures

[0022] Other characteristics and advantages of the invention will emerge on reading the detailed description which follows, with reference to the appended figures, which illustrate:

[0023] [Fig-1]: a perspective view of a modular pollutant detection device according to one embodiment of the invention;

[0024] [Fig.2]: a top view of the modular pollutant detection device according to the embodiment of [Fig.l]; and

[0025] [Fig.3]: a schematic representation of the information exchanges between the elements of the device according to one embodiment of the invention. Description of the invention

[0026] [Fig.l] represents an embodiment of a modular pollutant detection device 10.

[0027] The modular device 10 comprises a base 20. By base 20 is meant a frame of the modular device 10. According to one embodiment, the base 20 comprises a housing. By housing is meant an envelope forming a physical delimitation between an interior of the housing and an exterior of the housing.

[0028] The base 20 comprises at least one sensor 22. According to one embodiment, the base 20 comprises a plurality of sensors 22. By plurality of sensors 22, is meant at least two sensors 22. The sensor 22 is configured to measure at least one physical quantity which is preferably relative to the environment in which the modular device 20 is present. The sensor 22 produces at least one piece of data relating to the environment. The data relating to the environment is preferably data resulting from the measurement of the physical quantity(ies). According to one example, the data relating to the environment is determined directly from the measurement of a physical quantity. According to one example, the data relating to the environment is determined completed from the measurement of at least two distinct physical quantities by two sensors 22 of the plurality of sensors. The different configurations of sensors 22 will be described later in this description.

[0029] The base 20 comprises at least one receptacle 24. By receptacle 24 is meant a part of the base 20 which can act as a housing for another element of the modular device 10. The base 20 comprises at least one computer 26. By computer is meant any type of means making it possible to carry out a certain number of operations on data. The computer 26 can for example be a processor or a microprocessor.

[0030] The modular pollutant detection device 10 comprises at least one removable light indicator 30. By removable light indicator 30 is meant any type of means which is configured to produce light radiation or visible light. All types of light indicators can be used and will be described later.

[0031] The first receptacle 24 is configured to securely receive the removable light indicator 30. It is understood that the removable light indicator 30 can be inserted, at least in part, into the receptacle 24. The removable light indicator 30 can therefore be inserted and removed from the receptacle 24. Once inserted into the receptacle 24, the removable light indicator 30 is securely attached to the base 20. It is therefore fixed to the base 20 and immobile relative to the latter.

[0032] The data relating to the environment 28 measured by the plurality of sensors 22 is transmitted to the computer 26. The computer 26 controls the lighting of the indicator light 30 as a function of the data relating to the environment 28 of the device 10. The control of the lighting is launched by the computer as a function of the data relating to the environment. As a result, a control of the lighting of the indicator light is carried out as a function of one or more measured characteristics of the environment of the modular device 10. Receptacles

[0033] As stated previously, the first receptacle 24 is configured to securely receive the removable light indicator 30. According to one embodiment, the first receptacle 24 comprises a housing comprising a shape substantially complementary to a shape of an external surface of the removable light indicator 30. As a result, the removable light indicator fits perfectly into the first receptacle 24.

[0034] According to one embodiment, the first receptacle 24 comprises a first fixing means. According to one embodiment, the light indicator comprises a second fixing means. The first fixing means is configured to cooperate with the second fixing means of the removable light indicator 30. According to one embodiment embodiment, the first fastening means and the second fastening means form a clip. The clip represents a good means for removably fastening the removable light indicator 30 in the first receptacle 24. According to one embodiment, the first fastening means comprises a notched tab. According to one embodiment, the second fastening means comprises a shoulder. A surface of the shoulder is preferably perpendicular to an axis of insertion of the light indicator 30 in the first receptacle 24. In this way, the notched tab, when inserting the removable light indicator 30 in the first receptacle 24, deforms until the notch passes the surface of the shoulder. In this way, the notched tab ensures, with the shoulder, the fastening of the removable light indicator 30 in the first receptacle 24. According to one embodiment, the second fastening means comprises the notched tab.According to one embodiment, the first fixing means comprises the shoulder. A surface of the shoulder is preferably perpendicular to an axis of insertion of the light indicator 30 into the first receptacle 24. In this way, the notched tab, when inserting the removable light indicator 30 into the first receptacle 24, deforms until the notch passes the surface of the shoulder. In this way, the notched tab ensures, with the shoulder, the fixing of the removable light indicator 30 in the first receptacle 24. According to one embodiment, the first fixing means and / or the second fixing means comprise several notched tabs.

[0035] According to one embodiment, the first fixing means comprises at least one permanent magnet and the second fixing means comprises at least one ferromagnetic material. The magnet and the ferromagnetic material are located opposite each other when the light indicator 30 is inserted into the first receptacle 24. In this way, the couple formed by the magnet and the ferromagnetic material ensures magnetic fixing of the removable light indicator 30 in the first receptacle 30. According to one embodiment, the second fixing means comprises the permanent magnet and the first fixing means comprises the ferromagnetic material.

[0036] According to one embodiment, the first fastening means and the second fastening means comprise a thread and a bore. In this way, the removable light indicator 30 can be screwed onto the first receptacle 24.

[0037] According to one embodiment, the first receptacle 24 comprises at least one first contactor. The first contactor is configured to make electrical contact with a metal body and / or another contactor. According to one embodiment, the removable light indicator 30 comprises at least one second contactor. The second contactor is configured to make electrical contact with the first contactor. According to one embodiment, the second contactor comprises a surface contact surface which is perpendicular to the axis of insertion of the light indicator 30 into the first receptacle 24. According to one embodiment, the contact surface of the second contactor is annular in shape. According to one embodiment, the contact surface of the second contactor goes around a contact surface between the first receptacle 24 and the light indicator 30 when the latter is inserted into said receptacle 24. This arrangement advantageously makes it possible to have contact between the first contactor and the second contactor regardless of the orientation of the indicator 30 in the receptacle 24. This arrangement is particularly advantageous when the first receptacle 24 has a circular shape, which leaves the possibility of inserting the light indicator in a variety of different angular positions. According to one embodiment, the first contactor has a contact surface which is annular in shape.According to one embodiment, the contact surface of the first contactor goes around a contact surface between the first receptacle 24 and the light indicator 30 when the latter is inserted into said receptacle 24. This arrangement advantageously makes it possible to have contact between the first contactor and the second contactor regardless of the orientation of the indicator 30 in the receptacle 24. This arrangement is particularly advantageous when the first receptacle 24 has a circular shape, which leaves the possibility of inserting the light indicator in a variety of different angular positions.

[0038] According to one embodiment, the first receptacle 24 comprises several first contactors, preferably at least two. According to one embodiment, the removable light indicator 30 comprises several second contactors, preferably at least two. In this way, it is possible to create by the contactors several electrical tracks when the light indicator 30 is inserted into the first receptacle 30. This arrangement makes it possible to form several distinct electrical connections between the light indicator 30 and the base 20, for example two, three, four or even five.

[0039] According to one embodiment, the first receptacle 24 and / or the light indicator 30 comprise at least one keying device. By keying device, one means a device allowing the insertion of the light indicator 30 only when the latter does not have a precise angular orientation relative to its insertion axis in the first receptacle 24. In other words, the keying device makes it possible to guide the correct insertion of the light indicator 30 into the first receptacle 24. According to one embodiment, the keying device comprises at least one protrusion and a groove. According to one example, the light indicator 30 comprises the protrusion and the first receptacle 24 comprises the groove. When inserting the light indicator 30 into the first receptacle 24, the protrusion is inserted into the groove of the receptacle 24, which allows guidance by translation of the protrusion in the groove. According to one example, the first receptacle 24 comprises the protrusion and the light indicator 30 comprises the groove. According to one embodiment, the device comprises several keying devices. The presence of at least one keying device is particularly advantageous in the case where the first receptacle 24 and the removable light indicator 30 each comprise several contactors. In this way, the keying device makes it possible to ensure that the contactors are facing each other during insertion, which makes it possible to ensure that the electrical contact is properly made.

[0040] According to one embodiment, the base 20 comprises at least one second receptacle 25. The second receptacle 25 is configured to receive at least one sensor 22. The sensor 22 is configured to measure at least one piece of data relating to the environment. The piece of data relating to the environment measured by the sensor 22 is transmitted to the computer 26. According to one embodiment, the second receptacle is configured to removably receive the sensor 22. This arrangement is particularly advantageous because it allows the sensor 22 to be detached from the base 20. Thus, it is possible to change the sensor 22 if it is defective. It is also possible to change the sensor according to the type of measurement that one wishes to carry out. It is for example possible to switch from a sensor 22 measuring a level of carbon dioxide in the air to a sensor measuring the temperature. According to one embodiment, the second receptacle 25 comprises at least one contactor.According to one embodiment, the sensor 22 also comprises at least one contactor. Thus, an electrical contact can be made when inserting the sensor 22 into the second receptacle 25. All the characteristics described previously relating to the contactor of the first receptacle 24 can apply to the contactor of the second receptacle 25. All the characteristics described previously relating to the contactor of the removable light indicator 30 can also apply to the contactor of the sensor 22.

[0041] According to one embodiment, the sensor 22 and / or the second receptacle 25 comprise at least one means for fixing the sensor 22 in the second receptacle 25. The fixing means which is used is, according to an embodiment, analogous to the fixing means.

[0042] According to one embodiment, the second receptacle 25 comprises at least one third fixing means. According to one embodiment, the sensor 22 comprises a fourth fixing means. The third fixing means is configured to cooperate with the fourth fixing means of the sensor 22. According to one embodiment, the third fixing means and the fourth fixing means form a clip. The clip represents a good means of removably fixing the sensor 22 in the second receptacle 25. According to one embodiment, the third fixing means comprises a notched tab. According to one embodiment, the fourth fixing means comprises a shoulder. A surface of the shoulder is preferably perpendicular to an axis of insertion of the sensor 22 into the second receptacle 25. In this way, the notched tab, when inserting the sensor 22 into the second receptacle 25, deforms until the notch passes the surface of the shoulder. In this way, the notched tab ensures, with the shoulder, the fixing of the sensor 22 in the second receptacle 25. According to one embodiment, the fourth fixing means comprises the notched tab. According to one embodiment, the second fixing means comprises the shoulder. A surface of the shoulder is preferably perpendicular to an axis of insertion of the sensor 22 into the second receptacle 25. In this way, the notched tab, when inserting the sensor 22 into the second receptacle 25, deforms until the notch passes the surface of the shoulder.In this way, the notched tab ensures, with the shoulder, the fixing of the sensor 25 in the second receptacle 25. According to one embodiment, the third fixing means and / or the fourth fixing means comprises several notched tabs.

[0043] According to one embodiment, the third fixing means comprises at least one permanent magnet and the fourth fixing means comprises at least one ferromagnetic material. The magnet and the ferromagnetic material are located opposite each other when the sensor 22 is inserted into the second receptacle 25. In this way, the torque formed by the magnet and the ferromagnetic material ensures magnetic fixing of the sensor 22 in the second receptacle 25. According to one embodiment, the fourth fixing means comprises the permanent magnet and the third fixing means comprises the ferromagnetic material.

[0044] According to one embodiment, the third fixing means and the fourth fixing means comprise a thread and a bore. In this way the sensor 22 can be screwed onto the second receptacle 25.

[0045] According to one embodiment, the base 20 comprises several second receptacles 25. According to one embodiment, the base comprises two second receptacles 25. This arrangement advantageously allows the user to form a modular detection device in which he can choose the two physical quantities which will be measured by the two on-board sensors. Similarly, in the event of a change in measurement requirements, or in the event of moving the device into a new measurement context, the user can advantageously modify the on-board sensors 22 to be able to adapt the use of the device 10 to the measurement context. According to one example, the base 20 comprises three second receptacles 25. Sensors

[0046] The modular pollutant detection device 10 comprises a plurality of sensors 22. A large number of different types of sensors 22 can be used. to measure quantities relating to the environment of the device 10. The sensors 22 measure at least one piece of data relating to the environment of the device 10 and communicate it to the computer.

[0047] According to one embodiment, the device 10 comprises at least one carbon dioxide sensor 22. According to one embodiment, the carbon dioxide sensor 22 measures at least one piece of data relating to a level of carbon dioxide in the air surrounding the pollutant detection device 10. The level of carbon dioxide in the air is a piece of data that is very useful for characterizing the quality of the air surrounding the device 10.

[0048] According to one embodiment, the device 10 comprises at least one nitrogen oxide or NOX level sensor. A nitrogen oxide sensor is configured to measure a level of nitrogen oxides in the air surrounding the pollutant detection device 10. A level of nitrogen oxides is a very interesting piece of data for measuring the quality of the ambient air. According to one embodiment, the sensor 22 directly provides data relating to the environment which is an index of the presence of NOX in the air. According to this embodiment, the relative data can for example provide a value which is representative of the quality of the air in terms of the presence of NOX.

[0049] According to one embodiment, the device 10 comprises at least one carbon monoxide sensor 22. According to one embodiment, the carbon monoxide sensor 22 measures at least one piece of data relating to a level of carbon monoxide in the air surrounding the pollutant detection device 10. The level of carbon monoxide in the air is a piece of data that is very useful for characterizing the quality of the air surrounding the device 10.

[0050] According to one embodiment, the device 10 comprises at least one sensor 22 of volatile organic compounds, otherwise called VOCs. According to one embodiment, the sensor 22 of volatile organic compounds measures at least one piece of data relating to a level of volatile organic compounds in the air surrounding the pollutant detection device 10. The level of volatile organic compounds in the air is a very interesting piece of data for characterizing the quality of the air surrounding the device 10. According to one embodiment, the sensor 22 of volatile organic compounds directly provides data relating to the environment which is an index of the presence of volatile organic compounds in the air. According to this embodiment, the relative data can for example provide a value which is representative of the quality of the air in terms of the presence of volatile organic compounds.

[0051] According to one embodiment, the device 10 comprises at least one carbon dioxide sensor 22. According to one embodiment, the carbon dioxide sensor 22 measures at least one piece of data relating to a level of carbon dioxide in the air surrounding the pollutant detection device 10. The level of carbon dioxide in air is a very interesting piece of data to characterize the quality of the air surrounding the device 10.

[0052] According to one embodiment, the device 10 comprises at least one microparticle sensor 22. According to one embodiment, the microparticle dioxide sensor 22 measures at least one piece of data relating to a quantity of microparticles in the air surrounding the pollutant detection device 10, for example a microparticle rate. The microparticle rate in the air is a very interesting piece of data for characterizing the quality of the air surrounding the device 10.

[0053] According to one embodiment, the device 10 comprises at least one sulfur oxide or SO sensor 22. According to one embodiment, the sulfur oxide sensor 22 measures at least one piece of data relating to a level of sulfur oxides in the air surrounding the pollutant detection device 10. The level of sulfur oxides in the air is a very interesting piece of data for characterizing the quality of the air surrounding the device 10. According to one embodiment, the level of sulfur oxide in the ambient air is measured by the sensor 22.

[0054] According to one embodiment, the device 10 comprises at least one ozone sensor 22. According to one embodiment, the ozone sensor 22 measures at least one piece of data relating to an ozone level in the air surrounding the pollutant detection device 10. The ozone level in the air is a piece of data that is very useful for characterizing the quality of the air surrounding the device 10.

[0055] According to one embodiment, the device 10 comprises at least one sound volume sensor 22. According to one embodiment, the sound volume sensor 22 measures at least one piece of data relating to the sound level in the environment of the pollutant detection device 10. According to one embodiment, the sound volume sensor 22 measures a sound level in decibels. According to one embodiment, the sound volume sensor 22 measures a sound level in weighted decibels, for example in dB(A).

[0056] According to one embodiment, the device 10 comprises at least one light intensity sensor 22. According to one embodiment, the light intensity sensor comprises a photosensitive cell. The photosensitive cell provides an electrical voltage or an electrical intensity which is a function of the light intensity of the environment of the device 10.

[0057] According to one embodiment, the device 10 comprises at least one humidity sensor 22. According to one embodiment, the humidity sensor measures a relative humidity level of the ambient air of the device 10.

[0058] According to one embodiment, the device 10 comprises at least one atmospheric pressure sensor 22. According to one embodiment, the atmospheric pressure sensor measures data relating to the atmospheric pressure in the environment of the device 10. Indicator light

[0059] According to one embodiment, the removable light indicator 30 comprises at least one light-emitting device. According to one embodiment, the removable light indicator 10 comprises at least one light-emitting diode or LED. According to one embodiment, the removable light indicator 10 comprises several light sources. According to one embodiment, the removable light indicator 10 comprises several light-emitting diodes or LEDs. The advantage of having several light sources or LEDs is to make it possible to transmit information other than binary information by the display provided by the light indicator 10.

[0060] According to one embodiment, the light indicator 30 comprises a set of LEDs arranged in a circle, or substantially in a circle.

[0061] According to one embodiment, the LEDs are arranged in line on the light indicator. Such an arrangement advantageously makes it possible to arrange the lights in such a way that they form a gauge making it possible to represent a level of pollutant for example.

[0062] According to one embodiment, each light source is configured to emit lights of several different colors. According to one example, each LED is configured to emit red light, yellow light, and green light. Such an arrangement makes it possible to convey several different types of messages to users thanks to the different colors of the LEDs.

[0063] According to one embodiment, the light intensity of the light sources is adjustable. According to one example, the light sources are configured to flash. According to one embodiment, the light sources are configured to be able to vary the emitted light intensity, for example according to several predefined intensity levels. According to one example, the light sources can be lit at three different light intensity levels.

[0064] According to one embodiment, the light indicator can be replaced in the first receptacle 24 of the base 20 by a cover. By cover, we mean any type of mechanical part having a shape substantially complementary to the shape of the first receptacle 24. The presence of a cover advantageously makes it possible to best adapt the pollutant detection device 10 to the operational situation. Indeed, it is possible to use the device 10 without there being any need to display information for users located in the direct environment of the device 10. In this way, the cover can be inserted into the first receptacle 24 in place of the light indicator 10. The cover comprises one or more fixing means which are similar to those described for the light indicator 30. According to one embodiment, the cover is configured to be inserted into the first receptacle 24 when the light indicator 30 is already inserted into the receptacle 24. In other words, the cover in this case obstructs the light indicator 30. In this case, the light indicator 30 is located under the cover. Control of light indicators

[0065] According to one embodiment, the computer 26 controls the switching on of the light(s) of the indicator light 30. The switching on of the lights is carried out by the computer as a function of the data relating to the environment which have been transmitted by the sensor(s) 22 of the device 10.

[0066] The lighting of the light(s) of the indicator light 30 is carried out according to several different methods.

[0067] According to one embodiment, the light indicator comprises at least one light that lights up in different colors depending on the detection of a pollutant by one of the sensors 22. For example, the light lights up in one color if a first pollutant is detected. In this example, the light lights up in another color if a second pollutant is detected. For example, the light lights up in blue if carbon monoxide is detected and lights up in red if microparticles are detected. This arrangement makes it possible to provide a display for alerting a user in the event of detection of a specific pollutant. According to one example, the lighting of a light according to a specific color is triggered when the measurement of a sensor relating to a pollutant exceeds a predetermined threshold. For example, the predetermined threshold may be the exceeding of a carbon dioxide value measured by the sensor 22 of 1300 parts per million (ppm).In one example, the light turns on in a certain color when the pollutant is detected, and flashes when the measured value for that pollutant exceeds the predetermined threshold.

[0068] According to one embodiment, the calculator 26 calculates from the at least one piece of data relating to the environment of the device 10 at least one environmental quality index. According to one example, the environmental quality index is calculated from at least two pieces of data relating to the environment provided by two sensors 22. According to one embodiment, more pieces of data relating to the environment can be used to calculate the environmental quality index, for example three, four, five, six or seven. According to one embodiment, the environmental quality index is a score defining several types of environmental quality of the device 10. According to one embodiment, each value of each piece of data relating to the environment corresponds to a score concerning said piece of data.According to one embodiment, the score of said data is obtained by comparing the value of said data with at least one threshold value characteristic of said data. Each score of each data is added to give an overall quality score of the environment. According to one embodiment, the overall quality score is . compared to at least one threshold value to define the environmental quality index.

[0069] According to one embodiment, the environmental quality index is calculated from four environmental data. These four environmental data are provided by four sensors 22. According to this embodiment, the four environmental data used are temperature, humidity, the quantity of microparticles and the carbon dioxide level. If the measured temperature is between 18 and 24 degrees Celsius, then the characteristic score corresponding to the temperature is 0.5 points. If the measured temperature is between 17 and 18 degrees Celsius, or between 25 and 28 degrees Celsius, then the characteristic score corresponding to the temperature is 1 point. If the measured temperature is between 15 and 17 degrees Celsius, or between 28 and 30 degrees Celsius, then the characteristic score corresponding to the temperature is 2 points.If the measured temperature is below 15 degrees Celsius, or above 28 degrees Celsius, then the characteristic score corresponding to the temperature is 3 points. If the measured humidity is between 40 and 60%, then the characteristic score corresponding to the humidity is 0.5 points. If the measured humidity is between 30 and 40% or between 60 and 70%, then the characteristic score corresponding to the humidity is 1 point. If the measured humidity is between 20 and 30% or between 70 and 80%, then the characteristic score corresponding to the humidity is 2 points. If the measured humidity is below 20% or above 80%, then the characteristic score corresponding to the humidity is 3 points. For microparticles, the quantity of microparticles among particles with a diameter of less than 10 micrometers (PM10, PM2.5 and PMI) per cubic meter of air is measured.If the measured quantity of microparticles is between 15 and 20 micrograms, then the characteristic score corresponding to the microparticles is 0.5 points. If the measured quantity of microparticles is between 20 and 25 micrograms, then the characteristic score corresponding to the microparticles is 1 point. If the measured quantity of microparticles is between 25 and 30 micrograms, then the characteristic score corresponding to the microparticles is 2 points. If the measured quantity of microparticles is greater than 30 micrograms, then the characteristic score corresponding to the microparticles is 3 points. If the measured carbon dioxide level is less than 800 ppm, then the characteristic score corresponding to the carbon dioxide level is 0.5 points. If the measured carbon dioxide level is between 800 and 1000 ppm, then the characteristic score corresponding to the carbon dioxide level is 1 point.If the measured carbon dioxide level is between 1000 and 1300 ppm, then the characteristic score corresponding to the carbon dioxide level is 2 points. If the measured carbon dioxide level is . greater than 1300 ppm, then the characteristic score corresponding to the carbon dioxide level is 3 points. Once each characteristic score is calculated by the calculator, then the overall score is calculated from the characteristic scores. According to the example, the overall score is calculated by adding the characteristic scores. An overall score corresponds to a good environmental quality index if it is between 0 and 3 points. In this case, at least one light of the indicator light 30 lights up in green. An overall score corresponds to an average environmental quality index if it is greater than 3 points and less than or equal to 6 points. In this case, at least one light of the indicator light 30 lights up in blue. An overall score corresponds to a poor environmental quality index if it is greater than 6 points and less than or equal to 8 points. In this case, at least one light of the indicator light 30 lights up in yellow.An overall score corresponds to a severe environmental quality index if it is greater than 8 points. In this case, at least one light of the indicator light 30 lights up in red. Alternatively or additionally, the indicator light 30 may include at least one light per characteristic score.

[0070] According to one example, the light indicator comprises at least one light per type of pollutant that can be detected by all of the sensors 22 of the device 10. Each light comprises a color that is characteristic of the type of pollutant detected. For example, one light lights up red if carbon dioxide is detected, another lights up yellow if microparticles are detected. This arrangement makes it possible to signal the presence of the type of pollutant that is detected in a simple manner. According to one embodiment, the light corresponding to the pollutant lights up if the measurement of said pollutant exceeds a characteristic threshold. Connectivity

[0071] [Fig.3] represents the different exchanges of information between the different elements of the device 10.

[0072] According to one embodiment, the device comprises at least one means of connection to a network. According to one example, the device 10 comprises at least one modem allowing a connection of the device to an internet network and / or to a remote server. According to one embodiment, the measured environmental data are sent to the remote server. According to one embodiment, the remote server comprises a calculator, said calculator calculating the environmental quality scores and indices described above.

[0073] According to one embodiment, the remote server collects data relating to the environment of at least one remote sensor of the device 10. According to one embodiment, the server collects data relating to the environment of at least one online data stream. According to one embodiment, the scores and indices described previously are calculated by the remote server from the environmental data provided by the sensors 22 of the device and from the environmental data provided by remote sensors and / or online data streams. This feature is particularly advantageous because it allows data measured by the device 10 to be compiled directly with data from other sources to provide the best information to the user. According to one embodiment, the environmental data are recorded on a remote storage medium.

[0074] According to one embodiment, the means for connecting to a network comprises a transmitter and / or receiver configured to transmit the data relating to the environment and / or to receive data calculated by the remote server. According to one embodiment, the transmitter / receiver is a wifi modem, a bluetooth modem and / or a modem configured to communicate via a cellular network. According to one embodiment, the transmitter / receiver is wired, comprising for example an ethernet port. According to one embodiment, the device 10 communicates with the remote server using a Modbus protocol, and / or a Lora or Lorawan protocol, and / or a GSM protocol.

[0075] According to one embodiment, the detection device 10 and / or the remote server are connected to a ventilation system. Advantageously, the ventilation system is a system allowing the circulation and renewal of air in a room in which the detection device 10 is located. According to one embodiment, the ventilation system is controlled by the detection device 10. According to one example, the ventilation provided by the ventilation system is controlled by the computer of the device 10 as a function of at least one of the measured environmental data. According to one example, the ventilation provided by the ventilation system is controlled by the remote server as a function of at least one of the measured environmental data. According to one example, the ventilation is controlled as a function of the measured value of the nitrogen oxide concentration in the air.According to one embodiment, the ventilation is controlled as a function of the value representative of the air quality in terms of the presence of NOX. According to one embodiment, the ventilation of the ventilation system is controlled as a function of any of the measured environmental data. The ventilation can for example be controlled as a function of the measurement of microparticles and / or the measurement of the carbon monoxide concentration, and / or as a function of the measurement of the ozone concentration, and / or the measurement of the carbon dioxide concentration. All these arrangements make it possible to renew the air present in the room where the device 10 is located as a function of the quality of the ambient air. Nomenclature:

[0076] 10: modular pollutant detection device

[0077] 20: base

[0078] 22: sensor

[0079] 24: first receptacle

[0080] 25: second receptacle

[0081] 26: calculator

[0082] 28: data relating to the environment of the device

[0083] 30: removable light indicator

[0084] 40: remote server

[0085] 42: remote server calculator

[0086] 50: remote sensor

Claims

Claims

1. Modular pollutant detection device (10) characterized in that it comprises: - a base (20) comprising a plurality of sensors (22), at least one first receptacle (24) and at least one computer (26); and - at least one removable light indicator (30); the first receptacle (24) being configured to securely receive the removable light indicator (30), the plurality of sensors (22) measuring at least one piece of data relating to the environment (28) of the modular device (10) and communicating said data to the computer (26), said computer (26) controlling the lighting of the light indicator (30) as a function of the piece of data relating to the environment (28) of the device (10).

2. Modular device (10) according to the preceding claim in which the removable light indicator (30) comprises a plurality of LEDs, the number of LEDs lit being controlled in real time by the computer (26) as a function of the data relating to the environment.

3. Modular device (10) according to any one of the preceding claims in which the light indicator (30) is configured to emit light of several colors, the emitted color being selected by the computer according to the data relating to the environment.

4. Modular device (10) according to any one of the preceding claims in which the base comprises at least two second receptacles (25) each configured to accommodate at least one sensor (22) each measuring a piece of data relating to the environment (28), the computer (26) controlling the behavior of the light indicator (30) as a function of each piece of data relating to the environment (28).

5. Modular device (10) according to the preceding claim in which the first receptacle (24) is configured to allow the insertion of a cover making it possible to mask the light indicator (30) and / or to replace it in the second receptacle (25).

6. Modular device (10) according to any one of the preceding claims in which the removable light indicator (30) is clipped in the first receptacle (24).

7. Modular device (10) according to any one of the preceding claims wherein the indicator light (30) comprises a contactor configured to cooperate with a contactor of the first receptacle (24), the electrical power supply to the indicator light (30) being provided via the contactors.

8. A modular device (10) according to any preceding claim which comprises a removable membrane configured to be placed over the light indicator (30), said membrane being translucent and being fixed to the first receptacle (24).

9. Modular device (10) according to any one of the preceding claims in which the calculator (26) sends the data relating to the environment (28) to a remote server (40), said remote server (40) generating at least one calculated data relating to the data or data relating to the environment (28).

10. Modular device (10) according to the preceding claim in which the remote server (40) sends the calculated data to the computer (26), the computer (26) controlling the lighting of the indicator light (30) as a function of said calculated data.

11. Modular device (10) according to one of claims 9 or 10 in which the device (10) comprises a transmitter / receiver configured to transmit the data relating to the environment (28) and / or to receive the calculated data to the remote server (40), said transmitter / receiver being configured to transmit and receive data by wifi and / or by bluetooth and / or by cellular network.

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