IT202000007315A1 - Body temperature measurement device and associated measurement method - Google Patents

Description

DESCRIPTION

attached to a patent application for PATENT D? INDUSTRIAL INVENTION entitled:

Body temperature measuring device and associated measurement method

Field of technique

The present disclosure relates to the field of infrared temperature measuring devices and to the field of image processing systems, and in detail it concerns a device for measuring body temperature.

This disclosure also? concerns a method for measuring body temperature.

The present invention also relates to a computer program configured to cause a measurement of a subject's body temperature to be performed.

Known art

Current devices for measuring body temperature include contact devices (for example, using bulb thermometers or intra-ear infrared meters) and non-contact devices. Non-contact devices use, for example, infrared radiation produced by a specific subject to identify the body temperature of the same.

The Applicant has observed that the measurement of the temperature, especially in public environments, requires the use of an operator. This operator may not always be available, and his presence? often expensive. Furthermore, the operator can? typically check one subject at a time. Imagining that the operator has to control a large plurality? of subjects for example in hospitals, airports, supermarkets, railway stations, the control of one subject at a time by an operator can? cause, where it is necessary to control all or most of the subjects present, a considerable waste of time.

The Applicant also noted that the use of contact-type body temperature measuring devices involves hygiene problems: in this case, each body temperature measuring device that comes into contact with a specific subject must be sterilized or have components disposable type. Inappropriate sterilization can? lead to the spread of bacteria and viruses. Although the use of devices with single-use components reduces the risk of spreading bacteria and viruses, such use can reduce the risk of spreading bacteria and viruses. be associated with a component disposal problem. The Applicant has in any case observed that even the best of sterilizations on a contact measurement device, if carried out by a healthcare worker, in any case exposes this operator to the risk of infection; such a risk? particularly present in the case of influenza viruses or in any case aerobic contagion agents or those capable of causing disease by transmission through micro-drops from cough or sneezing.

Aims

A purpose of this disclosure? that of describing a device for measuring body temperature which allows to solve the drawbacks described above.

? furthermore, the purpose of the present disclosure is to describe a device for measuring body temperature which allows the subject to carry out a self-measurement of body temperature.

? furthermore, the purpose of the present disclosure is to describe a device for measuring body temperature which allows the subject's body temperature to be measured in a precise manner.

? furthermore, the purpose of the present disclosure is to describe a device for measuring body temperature which allows to have a reliable measurement of body temperature.

? furthermore, the purpose of the present disclosure is to describe a device for measuring body temperature which allows a simple, rapid and contactless measurement with the user.

? furthermore, the purpose of the present disclosure is to describe a device for measuring body temperature which allows to identify elements capable of distorting the reading of the body temperature measurement and to correct the effect thereof.

? furthermore, the purpose of the present disclosure is to describe a device for measuring body temperature which allows to perform a plurality of products. of body temperature measurements on a plurality? of subjects without any of these coming into contact with the device itself and / or without there being a need? of prior instruction of the same subjects about complex interaction procedures with the device itself.

? furthermore, the purpose of the present disclosure is to describe a device for measuring the temperature which identifies an optimal position of the subject for the detection of the body temperature, and / or which allows to identify an optimal position for the detection of the body temperature on the subject.

? furthermore, the purpose of the present disclosure is to describe a device for measuring the temperature which allows or simplifies the distinction between abnormal body temperatures of a pathological type and abnormal body temperatures of a non-pathological type.

? furthermore, the purpose of the present disclosure is to describe a method for measuring the body temperature of a subject which is capable of solving the drawbacks described above.

? in particular, the purpose of the present disclosure is to describe a method for measuring the body temperature of a subject which allows to solve or limit the drawbacks of the known art.

? furthermore, the purpose of the present disclosure is to describe a computer program which allows to solve or limit the drawbacks of the known art.

The method and / or the computer program described herein can also achieve at least the aforementioned purposes for the said device.

The Applicant observes that the purposes indicated here are not exhaustive; further purposes can be achieved by one or more? embodiments of the device and / or method which form the subject of the present disclosure. These embodiments will be described hereinafter in a non-limiting way.

Summary

The subject of this disclosure? described with reference to the following aspects, which can be combined with each other or with the claims of the present application.

The subject of the present disclosure is a device for measuring body temperature (100), comprising:

- an infrared sensor (101) configured to be positioned in use in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of a first subject (106) in order to detect an infrared radiation (107) transmitted by the first subject (106) and configured to allow in use the acquisition, in instants successive storms, of a plurality? thermographic images (Img1, Img2) of a determined scene (105) comprising at least the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T);

- a? unit? data processing unit (104) operatively connected with the infrared sensor (101) and configured to electronically determine a body temperature (T) value of the first subject (106) at least on the basis of infrared radiation (107) detected by the infrared sensor ( 101); the unit? (104) being configured to execute a temperature measurement noise reduction algorithm, the algorithm comprising an electronic calculation of a moving average calculated at least on a first plurality of data. of temperatures (T1, T2) detected on at least part of the thermographic images of said plurality? of thermographic images (Img1, Img2); the unit? data processing (104) being configured to electronically assign, as the body temperature (T) value of the first subject (106), a temperature calculated as a function of at least the moving average and to transmit and / or supply the first subject (106) body temperature value (T) of the first subject (106);

- the device for measuring the body temperature (100) being configured to allow a self-measurement of the temperature without contact by the first subject (106).

According to a further non-limiting aspect, the intermediate temperature value (Tme)? an average temperature value or? a median temperature value.

According to a further non-limiting aspect, the plurality? of thermographic images (Img1, Img2) includes at least a first and a second thermographic image.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to be operationally connected to a selective access system for users in a specific area, such as a turnstile, and the unit? data processing (104)? configured to determine and supply this selective access system for users with an enabling or inhibition signal for at least the first subject (106), depending on whether or not the body temperature (T) is lower than a limit temperature predetermined access.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to be interfaced with an external information system in order to transmit at least data relating to the measurements of the detected body temperature (T) and / or other data detected by means of a temperature sensor operatively associated with the device for measuring the body temperature (100).

According to a further non-limiting aspect, the unit? data processing (104)? configured to execute an algorithm (1003) suitable for identifying whether the subject (106) has moved with respect to the infrared sensor (101) during the detection of the temperature, calculating a plurality of of moving averages on the values detected and verifying the entity? the variation of these moving averages.

According to a further non-limiting aspect, the unit? of data processing? configured for:

- receiving from the infrared sensor (101) at least a first plurality of of temperature values detected, in successive instants of time, in correspondence with at least a first portion of the plurality? thermographic images (Img1, Img2) corresponding to a first zone of the sensitive and / or uncovered portion of the first subject (106);

- receiving at least a second plurality from the infrared sensor (101) of temperature values detected, in successive instants of time, in correspondence with at least a second portion of the plurality? thermographic images (Img1, Img2) corresponding to a second zone of the sensitive and / or uncovered portion of the first subject (106);

- perform a noise reduction algorithm for measuring the temperature, the algorithm comprising an electronic calculation of a first moving average calculated on at least said first plurality of detected temperature values and of a second moving average calculated on at least said second plurality of detected temperature values;

- determine the body temperature value (T) of the first subject (106) as a function of at least the first moving average and the second moving average and / or attributing to the temperature value (T) the maximum value between the first moving average and the second moving average.

According to a further non-limiting aspect, the temperature calculated as a function of the moving average comprises, or?, An intermediate temperature value (Tme) between at least a first temperature (T1) detected on at least part of the first thermographic image (Img1) and a second temperature (T2) detected on at least part of a second thermographic image (Img2) acquired by means of an infrared sensor (101).

According to a further non-limiting aspect, the unit? data processing (104)? configured to electronically calculate a first maximum temperature value (Tmax) detected on at least part of the first thermographic image (Img1) and a second maximum temperature value (Tmax) detected on at least part of the second thermographic image (Img2), and the intermediate value temperature (Tme) calculated between at least the first temperature (T1) detected on at least part of the first thermographic image (Img1) and the second temperature (T2) detected on at least part of a second thermographic image (Img2) and an intermediate temperature value between the first maximum temperature value (Tmax) detected on at least part of the first thermographic image (Img1) and a second maximum temperature value (Tmax) detected on at least part of the second thermographic image (Img2), and / or in which the first temperature (T1) corresponds to the first maximum value (Tmax) and the second temperature (T2) corresponds to the second maximum value (Tmax).

According to a further non-limiting aspect, the unit? data processing (104)? configured to temporarily store at least the first and second thermographic images (Img1, Img2) for the calculation of the intermediate temperature value (Tme).

According to a further non-limiting aspect, the unit? data processing (104)? configured to temporarily store at least the first and second thermographic images (Img1, Img2) for the calculation of the average temperature value and / or for the calculation of the median temperature value (Tme).

According to a further non-limiting aspect, the unit? data processing (104)? configured to calculate an intermediate temperature value (Tme), on a plurality of of temperatures (T1-Tn) detected, each, on at least part of a numerically corresponding plurality? of thermographic images (Img1-Imgn) and to transmit and / or provide the first subject (106) with a body temperature (T) value of the first subject (106) by assigning the said intermediate temperature value to the body temperature value (T) (Tme).

According to a further non-limiting aspect, the said plurality? of temperatures and / or thermographic images? numerically equal to at least four units, optionally six units, optionally ten units.

According to a further non-limiting aspect, the infrared sensor (101)? configured to measure infrared radiation having a wavelength substantially between 1? m and 20? m, plus? preferably between 3? m and 15? m, and / or? configured to measure infrared radiation in the near or middle infrared range.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to provide a measurement of the temperature (T) in substantially real time and / or in a time preferably less than 10s, plus? preferably less than 7s, pi? preferably less than 5s.

According to a further non-limiting aspect, the infrared sensor (101) has a sensitivity? thermal less than 0.3? C, preferably less than 0.2? C, plus? preferably less than 0.1 ° C.

According to a further non-limiting aspect, the device for measuring body temperature (100) comprises a memory on which? memorized a threshold temperature data (Ts) and the unit? data processing (104)? configured to compare the body temperature (T) to the threshold temperature data (Ts) and if the body temperature (T) is higher than the threshold temperature data (Ts) the unit? data processing (104)? configured to automatically emit and / or to automatically transmit an alarm signal to the device (100).

According to a further non-limiting aspect, the device for measuring body temperature (100) comprises at least one monitor (103), operatively connected to the unit? data processing (104), the monitor (103) being configured to present the thermal image substantially in real time with a thermal scene (105) captured by the infrared sensor (101) and / or to display the temperature value (T ) body in a predetermined portion or area (103b) of the monitor (103).

According to a further non-limiting aspect, the device for measuring body temperature (100)? further configured to transmit the body temperature value (T) to a predetermined remote electronic device, operatively associated with the first subject (106), to a controller subject or to an automated information system.

According to a further non-limiting aspect, the unit? data processing (104)? configured to transmit and / or supply to the first subject (106) the measured body temperature (T) value by making said value appear on the monitor (103), in particular on a predetermined portion or area (103b) of the monitor (103).

According to a further non-limiting aspect, the unit? data processing (104)? configured to transmit the body temperature value (T) to a remote electronic device associated with the first subject (106), to a controller subject or to an automated information system.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to display on the monitor (103) a selection area (103a) within which, in use, the first subject (106), by moving it with respect to the infrared sensor (101), must position and / or substantially retract his face so that? it is possible for the body temperature measuring device (100) to perform a body temperature (T) measurement.

According to a further non-limiting aspect, the face represents the said sensitive and / or uncovered portion.

According to a further non-limiting aspect, the infrared sensor (101) and the monitor (103) are coupled to a support structure (102) and both oriented towards the same positioning area of the first subject (106), so as to allow - self-measurement of the temperature without contact by the first subject (106) and the direct signaling to the same of his / her body temperature value (T).

According to a further non-limiting aspect, the infrared sensor (101)? movably mounted on a support structure (102) and in which the device further comprises an actuation motor adapted to selectively vary the position of the infrared sensor (101), the unit? data processing unit (104) being operatively connected to the motor and configured to automatically adjust the position of the infrared sensor in a suitable manner with respect to the height of the first subject (106), this height being preferably detected automatically from at least one acquired thermographic image from the infrared sensor (101).

According to a further non-limiting aspect, the unit? data processing (104)? configured to determine the body temperature value (T) of the first subject (106) as a function of at least a maximum temperature value detected in one or more? thermographic images of the first subject (106) and / or in the sensitive and / or uncovered portion of the first subject (106) and to verify whether or not this maximum detected temperature value has been detected in correspondence with a predetermined measurement area, preferably in correspondence of the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), especially in the vicinity? of the lacrimal duct, called unit? data processing unit (104) being further configured to provide an alert or error signal in the event that said maximum detected temperature value has not been detected in correspondence with said predetermined measurement area.

According to a further non-limiting aspect, the unit? data processing (104)? configured to perform a facial recognition procedure (1002) further comprising:

- identify, and optionally identify, electronically in at least one first thermographic image (Img1) and in at least one second thermographic image (Img2), a sensitive and / or uncovered portion, in particular the face, of a first subject (106) ; And

- if the face of the first subject (106) has been identified, automatically assign, as the body temperature (T) of the first subject (106), the temperature detected within the sensitive and / or uncovered portion, in particular the face, of the first subject (106).

According to a further non-limiting aspect, the unit? processing data (104), if the face of the first subject (106) has been identified,? configured to identify and select which sensitive and / or uncovered portion the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), in particular the area located in the vicinity? of the lacrimal duct.

According to a further non-limiting aspect, the unit? processing data (104), if the face of the first subject (106) has been identified,? configured to identify and select which predetermined measurement area the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), in particular the area located in the vicinity? of the lacrimal duct.

According to a further non-limiting aspect, the unit? data processing (104)? configured to automatically identify if there are objects on the face of the first subject (106) capable of interfering with the measurement of the temperature (T); optionally said objects comprising at least glasses.

According to a further non-limiting aspect, the infrared sensor (101)? configured to measure an external body temperature, and / or the body temperature measuring device (100)? configured to transmit and / or provide a body temperature (T) value representative of the external body temperature of at least one first subject (106).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to apply a correction factor to the temperature measured on the basis of infrared radiation (107), and the body temperature (T) value? an internal body temperature value, which takes into account the corrective factor.

The present disclosure also relates to a device for measuring the body temperature (100) of a subject, comprising:

- an infrared sensor (101) configured to be positioned in use in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of a first subject (106), in particular the face of the first subject (106), in order to detect infrared radiation (107) transmitted by the first subject (106) and configured to allow in use the acquisition of at least a first thermographic image (Img1) of a given scene (105) including at least the sensitive and / or uncovered portion of the first subject (106), in order to detect a temperature (T) corporeal;

- a? unit? data processing unit (104) operatively connected with the infrared sensor (101) and configured to electronically determine a body temperature (T) value of the first subject (106) at least on the basis of infrared radiation (107) detected by the infrared sensor ( 101); the unit? data processing (104) being configured to perform a facial recognition procedure (1002) comprising electronic and automatic identification of the sensitive and / or uncovered portion of the first subject (106), in particular of the face of the first subject (106), within the at least one first thermographic image (Img1) or in an auxiliary image corresponding to the first thermographic image (Img1), and to determine the body temperature (T) of the first subject (106) as a function of at least a temperature measured in a predetermined measurement area of the sensitive and / or uncovered portion of the first subject (106).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to allow a non-contact self-measurement of the temperature by the first subject According to a further non-limiting aspect, the facial recognition procedure (1002) also comprises:

- identify, and optionally identify, electronically at least in the first thermographic image (Img1) the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106); And

- if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified, automatically assign, as the body temperature (T) of the first subject (106), the temperature detected within the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106).

According to a further non-limiting aspect, the facial recognition procedure (1002) further comprises, if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified, automatically assign, what body temperature (T) of the first subject (106), the temperature measured as a function of a moving average calculated at least on a first plurality? of temperature values (T1, T2) detected on the first thermographic image (Img1) and / or on a second thermographic image (Img2).

According to a further non-limiting aspect, the unit? processing data (104), if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified,? configured to identify and select which predetermined measurement area the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), especially in the vicinity? of the lacrimal duct.

According to a further non-limiting aspect, the unit? data processing (104)? configured to detect and / or identify electronically and automatically if on the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), there are foreign objects capable of interfering with the temperature measurement (T ) and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101); optionally said objects comprising at least glasses.

According to a further non-limiting aspect, the unit? data processing (104)? configured to transmit an alert or error signal if the presence of objects capable of interfering with the temperature measurement (T) is detected and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101).

According to a further non-limiting aspect, the unit? data processing (104)? configured to perform a temperature measurement noise reduction algorithm, the algorithm comprising an electronic calculation of a moving average calculated at least on a first plurality of of temperature values (T1, T2) detected on a plurality? of thermographic images (Img1, Img2); the unit? data processing (104) being further configured to determine the body temperature (T) value of the first subject as a function at least of the moving average and to transmit and / or supply to the first subject (106) the body temperature (T) value of the first subject (106).

According to a further non-limiting aspect, the device for measuring body temperature (100) comprises a base or support structure (102) on which the monitor (103) and the infrared sensor (101) are installed.

According to a further non-limiting aspect, the base or support structure (102) houses inside at least the unit? data processing (104).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to perform an ambient temperature compensation and / or calibration procedure, before or during the first subject's body temperature (T) measurement (106).

According to a further non-limiting aspect, at least in the ambient temperature compensation and / or calibration procedure, the device? configured to receive at least one reference temperature value (Tref) in input associated with a background element and / or an ambient temperature and / or a reference sample subject, the temperature being measured by an auxiliary temperature measurement device .

According to a further non-limiting aspect, the reference sample subject? other than the subject (106).

According to a further non-limiting aspect, the unit? data processing (104)? configured to attribute to the body temperature (T) measured on the subject (106) an absolute value calculated on the basis of the reference temperature value (Tref).

According to a further non-limiting aspect, the unit? data processing (104)? configured to electronically attribute the reference temperature value (Tref) to the background element in at least one first thermographic image (Img1) of the plurality of thermographic images (Img1, Img2).

According to a further non-limiting aspect, the unit? data processing (104)? configured to electronically assign the reference temperature value (Tref) to the reference sample subject.

According to a further non-limiting aspect, the unit? data processing (104)? configured to attribute the reference temperature value (Tref) to the ambient temperature.

According to a further non-limiting aspect, the device comprises the background element and the auxiliary temperature measuring device.

According to a further non-limiting aspect, the auxiliary temperature measuring device? a thermometer, optionally an electronic thermometer.

According to a further non-limiting aspect, the ambient temperature compensation procedure comprises a measurement of a reference temperature value (Tref), in particular an ambient temperature value, by an electronic thermometer operatively connected with the unit? data processing (104).

According to a further non-limiting aspect, the device for measuring body temperature (100) and / or the unit? data processing (104) comprises an operating configuration for calibration and / or compensation of the environmental temperature, in which it transmits and / or supplies the body temperature value (T) to the first subject (106) and stores this temperature value (T ) body as a reference temperature value (Tref).

According to a further non-limiting aspect, the body temperature (T) value? an absolute temperature value, electronically determined by the unit? data processing (104) based on an electronic calculation of the difference between an absolute reference temperature value (Tref) and a relative temperature value, measured by the infrared sensor (101) and compared to the reference temperature value (Tref ).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to be operatively connected with a device adapted to measure a heart rate of the first subject (106) and d? configured to electronically detect and distinguish at least one resting condition of the first subject (106) from an exertion or alteration condition of the first subject (106) based on the heart rate of the first subject (106).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to transmit and / or provide the first subject (106) with the preferably body temperature (T) value in association with information relating to the measured heart rate and / or with a distinctive indication between the resting condition and the exertion condition or alteration.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to transmit a specific information signal, if the body temperature (T) is measured in the condition of exertion or alteration.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to transmit an alert signal if the body temperature (T) is higher than the threshold temperature (Ts) in said stress or alteration condition.

According to a further non-limiting aspect, the device suitable for measuring a heart rate of the first subject (106) comprises at least one of the devices of the following list: a camera, an infrared sensor (101), an acoustic sensor, a pressure sensor, a electrical sensor and / or electrode, a pulse oximeter or pulse oximeter.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to allow height adjustment of the infrared sensor (101) and / or the monitor (103).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to allow a first measurement of body temperature (T) to the first subject (106) and a second measurement of body temperature (T) to a second subject (106) different from the first, and to automatically perform a measurement reset procedure between the first subject (106) and the second subject (106).

According to a further non-limiting aspect, the measurement reset procedure is started in relation to a predefined alteration of at least one average temperature and / or image representation detected in at least a second thermographic image (Img2) with respect to the first thermographic image. (Img1), in particular being started when the unit? data processing (104) detects a predefined alteration of at least one average temperature and / or image representation detected in at least one second thermographic image (Img2) with respect to the first thermographic image (Img1).

According to a further non-limiting aspect, the predefined alteration comprises a reduction of an average temperature of the at least one second thermographic image (Img2) with respect to the first thermographic image (Img1), and / or includes a disappearance of the sensitive and / or uncovered portion, in particular previously identified by the unit? data processing (104), from at least one first thermographic image (Img1) and / or from at least one second thermographic image (Img2).

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to transmit an alert signal if the body temperature (T) is higher than the threshold temperature (Ts) in said stress or alteration condition.

According to a further non-limiting aspect, the device for measuring body temperature (100)? configured to allow a first measurement of the body temperature (T) of a first subject (106) and a second measurement of the body temperature (T) of a second subject (106) different from the first, and to automatically perform a measurement reset procedure between the first subject (106) and the second subject (106).

The use of a device for measuring body temperature (100), in which the use includes the measurement of the body temperature of a plurality of products, also forms the subject of this disclosure of subjects (106) in sequence.

The present disclosure also relates to a method for measuring the body temperature (100) of a subject (106), comprising:

- a positioning phase (1000) of a first subject (106) in the vicinity? of an infrared sensor (101) positioned in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of the first subject (106) in order to detect an infrared radiation (107) transmitted by the first subject (106);

- an electronic temperature measurement step (1001) comprising an acquisition of at least a first thermographic image (Img1) of a certain scene (105) taken by the infrared sensor (101), in use comprising at least part of the first subject (106) , in particular the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T), in which

- in the electronic temperature measurement phase (1001), a? unit? data processing unit (104) operatively connected with the infrared sensor (101) measures a temperature at least based on the infrared radiation (107) detected by the infrared sensor (101) and executes a temperature measurement noise reduction algorithm by electronically calculating a moving average between at least a first temperature (T1) detected on at least part of the first thermographic image (Img1) and at least a second temperature (T2) detected on at least part of a second thermographic image (Img2) acquired through the infrared sensor (101 );

- a phase of transmission and / or supply to the first subject (106) of a body temperature (T) value of the first subject (106), assigning to the body temperature value (T) a temperature value calculated at least as a function of the average mobile, - so that? the first subject (106) can perform a self-measurement, without contact, of the body temperature.

According to a further non-limiting aspect, the temperature value calculated at least as a function of the moving average comprises, or?, An intermediate temperature value (Tme) between at least a first temperature (T1) detected on at least part of a first thermographic image (Img1 ) and a second temperature (T2) detected on at least part of a second thermographic image (Img2) acquired by means of an infrared sensor (101).

The present disclosure also relates to a method for measuring the body temperature (100) of a subject (106), comprising:

- a positioning phase (1000) of a first subject (106) in the vicinity? of an infrared sensor (101) positioned in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of the first subject (106) in order to detect an infrared radiation (107) transmitted by the first subject (106);

- an electronic temperature measurement step (1001) comprising an acquisition of at least a first thermographic image (Img1) of a certain scene (105) taken by the infrared sensor (101), in use comprising at least part of the first subject (106) , in particular the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T), in which

- in the electronic temperature measurement phase (1001), a? unit? data processing unit (104) operatively connected with the infrared sensor (101) measures a temperature at least based on the infrared radiation (107) detected by the infrared sensor (101) and executes a temperature measurement noise reduction algorithm by electronically calculating a moving average calculated on a first plurality? of temperatures (T1, T2) detected on at least part of a plurality? of thermographic images (Img1, Img2);

- a phase of electronic attribution, in which the unit? data processing (104) electronically attributes, as the body temperature (T) value of the first subject (106), a temperature calculated as a function of at least the moving average, - a phase of transmission and / or supply to the first subject (106) of a body temperature (T) value of the first subject (106),

- so that? the first subject (106) can perform a self-measurement, without contact, of the body temperature.

According to a further non-limiting aspect, the unit? data processing unit (104) performs the calculation of the temperature as a function of at least the moving average.

According to a further non-limiting aspect, the calculation of the intermediate temperature value (Tme)? a calculation of an average temperature value or a calculation of a median temperature value.

According to a further non-limiting aspect, the method includes an electronic calculation phase, performed by the unit? data processing (104), in which it electronically calculates a first maximum temperature value (Tmax) detected on at least part of the first thermographic image (Img1) and a second maximum temperature value (Tmax) detected on at least part of the second thermographic image (Img2),

in such a way that the said intermediate temperature value (Tme) calculated between at least the first temperature (T1) detected on at least part of the first thermographic image (Img1) and the second temperature (T2) detected on at least part of a second thermographic image ( Img2)? an intermediate temperature value between the first maximum temperature value (Tmax) detected on at least part of the first thermographic image (Img1) and a second maximum temperature value (Tmax) detected on at least part of the second thermographic image (Img2), and / or in such a way that the first temperature (T1) corresponds to the first maximum value (Tmax) and the second temperature (T2) corresponds to the second maximum value (Tmax).

According to a further non-limiting aspect, the method comprises a step of temporary storage at least of the first thermographic image and of the second thermographic image (Img1, Img2), and the step of calculating the intermediate temperature value (Tme)? performed following temporary storage.

According to a further non-limiting aspect, the method comprises a step of temporary storage at least of the first thermographic image and, optionally, of the second thermographic image (Img1, Img2), and at least one of the phase of calculating the average temperature value, or the phase of calculating the median temperature value, or the noise reduction algorithm, or the facial recognition phase,? performed following temporary storage.

According to a further non-limiting aspect, the second thermographic image (Img2)? acquired through infrared sensor (101) in an instant of time following an instant of time in which? acquired the first thermographic image (Img1).

According to a further non-limiting aspect, the unit? data processing (104) performs a calculation of an intermediate temperature value (Tme), on a plurality of of temperatures (T1-Tn) detected, each, on at least part of a numerically corresponding plurality? of thermographic images (Img1-Imgn) and the phase of transmission and / or supply to the first subject (106) comprises a transmission and / or supply to the first subject (106) of a body temperature value (T) assigning to the temperature value (T) body the said intermediate temperature value (Tme).

According to a further non-limiting aspect, the step of transmission and / or supply to the first subject (106) of a body temperature (T) value to the first subject (106) takes place in substantially real time with the positioning of the first subject (106) in the vicinity? of the infrared sensor (101) and / or with the electronic temperature measurement phase (1001).

According to a further non-limiting aspect, the method includes:

- a memorization step of a threshold temperature datum (Ts) in a memory operatively accessible by the unit? data processing (104),

- a phase of electronic comparison in which the unit? data processing (104) compares the measured body temperature (T) to the threshold temperature data (Ts) and, if the temperature (T) is greater than the threshold temperature data (Ts), the unit? data processing (104) causes an automatic emission and / or causes an automatic transmission of an alarm signal, optionally addressed at least to the first subject (106).

According to a further non-limiting aspect, the step of transmitting and / or supplying the body temperature value (T) to the first subject (106) comprises the transmission of an electronic datum comprising the body temperature value (T) to a monitor (103 ) operationally connected with the unit? data processing (104) in such a way as to display the thermographic image of the scene (105) captured by the infrared sensor (101) substantially in real time.

According to a further non-limiting aspect, the step of transmitting and / or supplying the body temperature value (T) to the first subject (106) comprises the transmission of an electronic datum comprising the said body temperature value (T) to a monitor ( 103) operationally connected to the unit? data processing (104), said transmission causing the appearance of the body temperature value (T) in a predetermined portion or area (103b) of the monitor (103).

According to a further non-limiting aspect, the step of transmitting and / or supplying the body temperature value (T) to the first subject (106) comprises a transmission of the body temperature value (T) to a remote electronic device, optionally associated with a specific first subject (106), in particular the first subject (106) that performs the self-measurement of the temperature.

According to a further non-limiting aspect, the method comprises a step for presenting a selection area (103a) on the monitor (103), the selection area (103a) being an area within which, in use, the first subject ( 106), by means of a displacement with respect to the infrared sensor (101), he must position and / or make his face substantially retract so that it? it is possible for the body temperature measuring device (100) to perform a body temperature (T) measurement.

According to a further non-limiting aspect, the unit? data processing (104) performs a facial recognition procedure (1002) in which it: - searches, and optionally identifies electronically, in the at least a first thermographic image (Img1) and in the at least a second thermographic image (Img2), a sensitive and / or uncovered portion, in particular a face, of a first subject (106); And

- if the sensitive and / or uncovered portion, in particular the face, of the first subject (106) has been identified, it identifies the sensitive and / or uncovered portion, in particular the face, of the first subject (106) and automatically assigns which body temperature (T) of the first subject (106), the temperature detected within the sensitive and / or uncovered portion, in particular the face, of the first subject (106).

According to a further non-limiting aspect, the unit? (104), performs a facial recognition procedure (1002) in which it is automatically identified if on the face of the first subject (106) as represented in at least one first thermographic image (Img1) there are foreign objects capable of interfering with a measurement of body temperature (T) and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101); optionally said objects comprising at least glasses.

According to a further non-limiting aspect, the unit? (104) performs the facial recognition procedure (1002) following the start of the electronic temperature measurement phase (1001).

A further object of the present disclosure also forms a method for measuring body temperature (100), comprising:

- a positioning phase (1000) of a first subject (106) in the vicinity? of an infrared sensor (101) positioned in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of the first subject (106) in order to detect an infrared radiation (107) transmitted by the first subject (106), the sensitive and / or uncovered portion comprising the face of the first subject (106);

- an electronic temperature measurement step (1001) comprising an acquisition of at least a first thermographic image (Img1) of a certain scene (105) taken by the infrared sensor (101), in use comprising at least part of the first subject (106) , in particular the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T), and in which

- in association with the electronic temperature measurement phase (1001), a? unit? data processing unit (104) operatively connected with the infrared sensor (101) determines the body temperature (T) at least on the basis of the infrared radiation (107) detected by the infrared sensor (101) and performs a facial recognition phase (1002) comprising an electronic and automatic identification of the sensitive and / or uncovered portion, in particular of the face, of the first subject (106) within the at least one first thermographic image (Img1), or in an auxiliary image corresponding to the first thermographic image (Img1 ), and performs a procedure for calculating a body temperature (T) value of the first subject (106) as a function of at least a temperature measured in a predetermined measurement area of the sensitive and / or uncovered portion of the first subject (106).

According to a further non-limiting aspect, the? configured to allow the first subject (106) to perform a self-measurement, without contact, of their own body temperature.

According to a further non-limiting aspect, in the facial recognition phase (1002), the unit? data processing (104):

- identifies, and optionally identifies, electronically at least in the first thermographic image (Img1) the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106); And

- if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified in at least in the first thermographic image (Img1) it electronically attributes, as a body temperature (T) value of the first subject (106) a temperature calculated as a function of the temperature detected within the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106).

According to a further non-limiting aspect, if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified at least in the first thermographic image (Img1), it electronically attributes which value body temperature (T) of the first subject (106) a temperature calculated as a function of a moving average calculated at least on a first plurality? of temperature values (T1, T2) detected on the first thermographic image (Img1) and / or on a second thermographic image (Img2).

According to a further non-limiting aspect, the second thermographic image (Img2)? a thermographic image of the first subject (106).

According to a further non-limiting aspect, in the facial recognition phase (1002), the unit? data processing (104), if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified, identifies and selects which sensitive and / or uncovered portion the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), especially in the vicinity? of the lacrimal duct.

According to a further non-limiting aspect, the unit? data processing (104), detects and / or identifies electronically automatically if on the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), there are objects capable of interfering with the measurement of the temperature (T) and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101); optionally said objects comprising at least glasses.

According to a further non-limiting aspect, the method comprises a step for identifying (1008) elements capable of distorting a body temperature (T) reading, comprising an electronic detection and / or identification of the self on the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), there are objects capable of interfering with the measurement of the temperature (T) and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101).

According to a further non-limiting aspect, the predetermined area of the sensitive and / or uncovered portion extends to the entire sensitive and / or uncovered portion, and / or comprises the entire sensitive and / or uncovered portion.

According to a further non-limiting aspect, the method comprises an ambient temperature compensation and / or calibration step which takes place prior to the measurement of the body temperature (T) of the first subject (106).

According to a further non-limiting aspect, in the environmental temperature compensation and / or calibration phase, the method comprises:

- a reception of at least one reference temperature value (T ref) in input to the unit? data processing (104),

- an electronic attribution, performed by the unit? data processing (104), in which the reference temperature value (Tref) is electronically assigned to a background of the at least one first thermographic image (Img1) and in which, the measured body temperature (T) value is assigned an absolute value based on the reference temperature value (Tref).

According to a further non-limiting aspect, the ambient temperature compensation step comprises a measurement of a reference temperature value (Tref), in particular an ambient temperature value, by an electronic thermometer operatively connected with the unit? data processing (104).

According to a further non-limiting aspect, the method, in the environmental temperature compensation and / or calibration step, includes a storage step, as a reference temperature value (Tref), of the body temperature value (T) measured on a reference sample subject, especially where the body temperature (T) value? an absolute temperature value, electronically determined by the unit? data processing (104) based on an electronic calculation of the difference between an absolute reference temperature value (Tref) and a relative temperature value, measured by the infrared sensor (101) and compared to the reference temperature value (Tref ).

According to a further non-limiting aspect, the method includes the establishment of an operational connection between the unit? data processing (104), optionally a device for measuring body temperature (100) hosting at least the unit? data processing unit (104) and the infrared sensor (101), with a device adapted to measure a heart rate of the first subject (106) and d? configured to electronically detect and distinguish at least one resting condition of the first subject (106) from an exertion or alteration condition of the first subject (106) based on the heart rate of the first subject (106).

According to a further non-limiting aspect, the method comprises a step of transmission and / or supply to the first subject (106) of a? Distinctive indication between the condition of rest and the condition of effort or alteration in association with the temperature value (T) body and / or comprises a step of transmitting and / or supplying the heart rate value to the first subject (106).

According to a further non-limiting aspect, the method comprises a transmission of an alert signal when the body temperature value (T) is measured in the stress or alteration condition.

According to a further non-limiting aspect, the method comprises a reset step, in which the body temperature value (T) transmitted and / or supplied to the first subject (106) is reset; the reset phase automatically taking place in relation to a predefined alteration of at least one average temperature and / or image representation detected in at least one second thermographic image (Img2) with respect to the first thermographic image (Img1).

According to a further non-limiting aspect, the reset phase takes place before measuring the body temperature (T) of a second subject (106) distinct from the first subject (106).

According to a further non-limiting aspect, the reset phase includes a detection by the unit? of data processing (104), of a predefined alteration of at least one average temperature and / or image representation detected in at least a second thermographic image (Img2) with respect to the first thermographic image (Img1).

According to a further non-limiting aspect, the predefined alteration comprises a reduction of an average temperature of the at least one second thermographic image (Img2) with respect to the first thermographic image (Img1), and / or includes a disappearance of the sensitive and / or previously discovered portion identified by the unit? data processing (104) on at least one first thermographic image (Img1) and / or on the second thermographic image (Img2).

According to a further non-limiting aspect, the method comprises a step of correcting the temperature measured by means of the infrared sensor (101), and the unit? data processing (104) determines the body temperature (T) on the basis of the infrared radiation (107) detected by the infrared sensor (101) and on the basis of a correction factor; said correction factor being applied to the temperature value measured in the sensitive or uncovered area and / or to the temperature value calculated on the basis of the moving average and / or the intermediate temperature value (Tme); said corrective factor being in particular a factor able to increase in a predetermined way the measured temperature value so that? the body temperature value (T) supplied and / or transmitted to the first subject (106) is representative of the internal body temperature of the first subject (106).

Furthermore, the subject of this disclosure is a computer program, capable of being executed by at least one unit? of data processing (104) and comprising portions of software code which when executed cause the execution of one or more? of the phases of the method according to one or more? of the aspects described here.

In particular, the subject of the present disclosure is also a computer program, capable of being executed by at least one unit? of data processing (104) and including portions of software code which when executed cause the execution of:

- an electronic reception of an image signal, transmitted by an infrared sensor (101) which? configured to frame, in use, a sensitive and / or uncovered portion of a first subject (106) on which to measure a body temperature (T) and to detect an infrared radiation (107) transmitted by the first subject (106), electronic reception taking place on the unit? of data processing (104) which? operatively connected to the infrared sensor (101);

- an electronic temperature measurement step (1001) comprising an acquisition of a plurality of thermographic images (Img1, Img2) of a determined scene (105) comprising at least the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T);

- a noise reduction algorithm for measuring the temperature, the algorithm comprising an electronic calculation of a moving average calculated at least on a first plurality of of temperatures (T1, T2) detected on at least part of the thermographic images of said plurality? of thermographic images (Img1, Img2);

- an electronic attribution of a temperature calculated as a function of at least the moving average, as the body temperature value (T) of the first subject (106), - a phase of transmission and / or supply to the first subject (106) of the temperature value ( T).

According to a further non-limiting aspect, the step of transmission and / or supply to the first subject (106) and / or the step of electronic temperature measurement (1001) take place automatically, so that? the subject (106) can perform a self-measurement, without contact, of the body temperature.

According to a further non-limiting aspect, the portions of software code, when executed, cause the execution of an electronic calculation in which the temperature value calculated as a function of the moving average includes, or?, An intermediate temperature value (Tme) between at least a first temperature (T1) detected on at least part of the first thermographic image (Img1) of the said plurality of thermographic images and a second temperature (T2) detected on at least part of a second thermographic image (Img2) of the said plurality of thermographic images.

Furthermore, the subject of this disclosure is a computer program, capable of being executed by at least one unit? of data processing (104) and including portions of software code which when executed cause the execution of:

- an electronic reception of an image signal, transmitted by an infrared sensor (101) which? configured to frame, in use, a sensitive and / or uncovered portion of a first subject (106) on which to measure a body temperature (T) and to detect an infrared radiation (107) transmitted by the first subject (106), electronic reception taking place on the unit? of data processing (104) which? operatively connected to the infrared sensor (101);

- an electronic temperature measurement step (1001) comprising an acquisition of at least a first thermographic image (Img1) of a certain scene (105) taken by the infrared sensor (101) in use comprising at least part of the first subject (106), in particular the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T) thereof;

- a facial recognition step, comprising electronic and automatic identification of the sensitive and / or uncovered portion, in particular of the face, of the first subject (106) within the at least one first thermographic image (Img1) or within a corresponding auxiliary image to the first thermal image (Img1),

- a procedure for assigning a body temperature (T) value of the first subject (106), assigning to this body temperature value (T) a temperature measured in a predetermined measurement area of the sensitive and / or uncovered portion.

According to a further non-limiting aspect, the portions of software code, when executed, cause the execution of an environmental and / or calibration temperature compensation, optionally taking place before the measurement of the body temperature (T) of the first subject ( 106).

Description of the figures

Preferred embodiments of the device and of the method object of the present disclosure will be described with reference to the attached figures, in which:

Figure 1 illustrates a side view of a device for measuring body temperature according to the present disclosure,

Figure 2 illustrates a front view of the device for measuring body temperature according to the present disclosure;

Figure 3 illustrates a block diagram which generally describes the main steps of the method object of the present disclosure; And

Figure 4 illustrates a concept block diagram which describes an algorithm used during the operation of a specific embodiment of the device object of the present invention, to measure the body temperature of a subject.

Detailed description

With the reference number 100? indicated as a whole a device for measuring a body temperature. The device 100? configured to perform a measurement of a body temperature of a subject 106 in a simple and precise way, without the need? intervention by an operator, thus carrying out a self-measurement. The self-measurement makes it possible not to need the presence of a health worker and likewise reduces the risk that the latter may be exposed to possible infections, in particular during the activity. of temperature measurement of a large amount? of subjects.

In a preferred and non-limiting embodiment, the device 100 takes the form of a totem comprising a base, or support structure 102 and an infrared sensor 101, in particular a thermal imager, fixed at a predetermined position with respect to the base 102 and equipped with an objective schematically represented in Figure 2 with the reference 101s.

The device 100 subject of this disclosure? configured to allow a self-measurement of body temperature without contact, in particular without direct contact at least between the infrared sensor 101 and at least a first subject 106; preferably, however, the device 100 object of the present disclosure? configured to allow the subject 106 to measure the body temperature without any contact with any portion of the device 100. In this way it can be optimized the hygiene of the device itself, and the risk of interpersonal contagion deriving from the contact of pi? users with possibly infected surfaces.

As schematically represented in Figure 1, the infrared sensor 101? positioned at a higher level than the level at which the base 102 is located; in particular, the altitude at which the infrared sensor 101 is located? such as to allow in use to film a predetermined portion (here called sensitive and / or uncovered portion) of the subject 106, in particular, and in a non-limiting way, the face of the subject 106.

In a particular and non-limiting embodiment, the device 100 object of the present disclosure further comprises an actuation motor adapted to selectively vary the position of the infrared sensor 101, and the unit? data processing 104? operationally connected to the engine so that? it is possible to automatically adjust the position of the infrared sensor in a suitable manner with respect to the height of the first subject 106; in one embodiment, the height? preferably detected automatically by at least one thermographic image acquired by the infrared sensor.

Such a portion? defined? sensitive portion? since? ? a portion of the subject 106 such as to present a compatible thermal rise (or lowering) and more? preferably proportional or in any case indicative of the thermal rise (or lowering) of the central temperature of the subject 106. This portion? defined portion uncovered, since? ? It is preferable to have body temperature measurements on uncovered body portions, in which there is no material interposed between the portion of interest and the infrared sensor 101.

The infrared sensor 101? specifically configured to shoot a 105 scene in front of him ?. When is subject 106? positioned in front of the infrared sensor 101, in such a way as to return within the scene 105, the infrared sensor 101 can? receive infrared radiation 107 from subject 100. Such infrared radiation can? be related to the temperature of the subject, and in particular pu? be the greater the greater? the temperature of the subject 106 itself. In a particular embodiment, the altitude at which the infrared sensor 101 lies can? be regulated; thanks to this aspect is optimized the possibility? of use by people of even significantly different heights, such as very tall adults and children.

The Applicant observes that the infrared sensor 101? configured to measure an external body temperature of the subject 106, and therefore primarily the device 100 described here could be configured to provide the body temperature value T indicative of the external body temperature of the subject. Alternatively, the device which forms the subject of the present disclosure can? be configured to apply a corrective factor in order to cause a transmission and / or supply to the subject 106 of a body temperature value T which? indicative of the subject's internal body temperature. This corrective factor can? comprise a certain value, for example and not limitedly between 0.3? C and 0.5? C to be added to the temperature measured by the infrared sensor 101.

The Applicant has observed that taking into account the range of temperatures which normally can? assume a human body, the infrared sensor 101 can? be conveniently configured to measure infrared radiation with a wavelength substantially comprised between 1? m and 20? m, plus? preferably between 3? m and 15? m and / or to work in the near or medium infrared range.

Preferably, the infrared sensor 101 possesses a sensitivity? thermal lower than 0.3? c, preferably lower than 0.2? C and more? preferably less than 0.1 ° C.

The device 100 also? includes a monitor 103, which? it too connected to the base 102; the monitor 103 pu? be placed in a vertical or inclined position but? preferably oriented in the same direction as the infrared sensor 101. This does s? that when the subject 106 is positioned in the scene 105 in front of the infrared sensor 101, is also? substantially aligned with monitor 103 as well. The purpose of monitor 103? that of allowing to present a thermographic image of the scene 105 taken by the infrared sensor 101, in particular to show this scene 105 in real time. Obviously, if in the scene shot by the infrared sensor 101 there? subject 106, at least part of subject 106 will appear? in the form of a thermal image on monitor 103. Optionally, the altitude at which monitor 103? positioned? adjustable.

Alternatively to the monitor 103, or in combination with the latter, the device 100 can? be configured to transmit the body temperature value T previously measured and attributed to the subject 106 towards a predetermined remote electronic device, operatively associated with the first subject 106, to a controller subject (in particular, other than subject 106) or to an automated information system .

To make this possible, the device 100 integrates a? Unit? of data processing, schematically indicated in Figure 1 and in Figure 2 with the numerical reference 104, which? operatively connected at least with the monitor 103 and with the infrared sensor 101, and / or if so? planned, ? operatively connected with the remote electronic device. Pursuant to this disclosure, however? Operationally connected? it is meant connected in such a way as to establish a logic channel for the exchange of a data signal, for example and not limitedly, an electrical and / or optical data signal.

The unit? of data processing, or unit? control, can? be a general purpose processor specifically configured to perform one or more? parts of the process identified in this disclosure through the software or firmware program, or be a dedicated ASIC or processor or? FPGA. In particular, the unit? data processing 104? configured to execute a computer program, stored in a non-transient memory contained in the device object of the present disclosure or operatively accessible from the same. The computer program includes portions of software code written in any programming language.

The use d? A unit? of data processing 104 also? allows to have a device 100 configured to be optionally interfaced with an external information system, in order to transmit at least the data relating to the measurements of the body temperature T measured on one or more? subjects 106, and / or other data detected for example by means of a temperature sensor operatively associated with the device 100 and in particular operatively connected with the unit? data processing 104.

In a preferred and non-limiting embodiment, the computing power of the unit? of data processing? such that a measurement of the body temperature of the subject 106 can? be provided in less than 10s, pi? preferably less than 7s and even more? preferably less than 5s.

The unit? of data processing pu? also? be operationally associated with a selective access system for users in a specific area; for example, and not limitedly, this selective access system can? include a turnstile or a door, and the unit? of data processing 104 pu? be configured to determine and supply to said user selective access system an enabling or inhibition signal for at least the first subject 106, depending on whether the body temperature value T, measured according to the modalities? described here, is or is not lower than an access limit temperature, previously determined and stored in the memory operationally accessible to the unit? of data processing 104 itself.

The device 100 described here? first of all configured to perform an acquisition of at least one thermographic image, and preferably of a plurality of images. of Img1-Imgn thermographic images through the infrared sensor and to memorize this plurality? of thermographic images at least temporarily in a memory operationally accessible by the device 100 or of the device 100. Technically, the unit? data processing 104? configured to perform this acquisition of the plurality? of Img1-Imgn thermographic images and to cause the temporary storage of the plurality? of images within the aforementioned memory.

A particular embodiment? configured to store at least a first Img1 thermographic image and a second Img2 thermographic image. The first thermal image? acquired through the infrared sensor 101 in a first instant of time; the second thermal image? acquired through the infrared sensor in a second instant of time, following the first.

Each of the previously mentioned Img1-Imgn thermal images comprises the aforementioned sensitive and / or uncovered portion of the subject 106. Preferably, for the reasons which will be better highlighted below, the number n of thermographic images acquired by the infrared sensor? at least equal to four, pi? preferably you are, even more? preferably ten.

The device subject of this disclosure? configured to perform a noise reduction algorithm on the thermographic images acquired through the infrared sensor 101. This algorithm, which uses a principle of measuring a variation of a temperature, in particular of variation of an average temperature and / or a moving average ,? particularly useful when subject 106? well positioned in scene 105 captured by infrared sensor 101 and? particularly effective in reducing measurement noise and increasing temperature measurement efficiency on multiple subjects.

In a non-limiting embodiment, the algorithm comprises an electronic calculation of a moving average calculated at least on a first plurality. of temperatures T1, T2 detected on at least part of the thermographic images of said plurality? of thermal images Img1, Img2 and the unit? data processing 104? configured to electronically attribute, as the body temperature value T of the first subject 106, a temperature calculated as a function at least of the moving average and to transmit and / or supply to the first subject 106 the body temperature value T of the first subject 106.

Altres? the unit? of data processing 104 pu? be configured to receive at least a first plurality from the infrared sensor 101 of temperature values detected, in successive instants of time, in correspondence with at least a first portion of the plurality? of thermographic images Img1, Img2 corresponding to a first zone of the sensitive and / or uncovered portion of the first subject 106 and to receive at least a second plurality from the infrared sensor 101 of temperature values detected, in successive instants of time, in correspondence with at least a second portion of the plurality? of thermographic images Img1, Img2 corresponding to a second zone of the sensitive and / or uncovered portion of the first subject 106. A particular embodiment of the temperature measurement noise reduction algorithm comprises an electronic calculation of a first moving average calculated on at least the first plurality? of detected temperature values and of a second moving average calculated on at least the second plurality? of detected temperature values. What? doing, the unit? of data processing determines the body temperature value T of the first subject 106 as a function of at least the first moving average and the second moving average and / or attributing to the temperature value T the maximum value between the first moving average and the second moving average. In a particular embodiment, in the algorithm that includes the aforementioned moving average, on at least part of each thermographic image, the unit? data processing calculates at least one temperature value. Figure 4 helps to understand the principles of the algorithm described here. This temperature value? indicated, for the first thermal image Img1, with the reference T1, for the second thermal image Img2, with the reference T2, and so on? Street. This temperature value T1, T2,? Tn, pu? be an average, or median, temperature value over a subset of points or pixels of the thermal image, or can it? be a maximum temperature value on a subset of points or pixels of the thermal image. This last option? discussed more? in detail below.

Given a number n of thermal images acquired by the infrared sensor 101, we will have? a corresponding number n of temperature values T1,? Tn. Subsequently, the unit? data processing 104? configured to calculate a median temperature value Tme between the n previously measured temperature values T1,? Tn. Thanks to this aspect? possible to do s? that any spurious temperature peaks affect the temperature measurement calculated by the device 100 less.

The algorithm? defined as a moving average since? when the n + 1-th thermographic image Imgn + 1 is acquired, the intermediate value, and in particular the median temperature value Tme will be? calculated taking into account the temperatures T2-Tn + 1, that is, discarding the T1 temperature of the first thermographic image, and so on? Street. In particular, the moving average can? be a simple moving average, in which all the values that are taken into consideration for the calculation are weighted with the same weight.

When the unit? data processing 104 has electronically calculated the median temperature value Tme, the body temperature value T assigned to the subject 106 is associated with the median temperature value Tme. In particular, the Applicant observed that the aforementioned median value can? be useful to determine the actual body temperature in a more? reliable, since? also takes into account the statistical occurrence of the temperature values T1,? Tn on the plurality? of Img1-Imgn thermal images. The Applicant has in particular observed that although? in the present description reference is made to a specific embodiment with measurement of the median value, this embodiment must not be understood in a limiting way since? ? It is possible to measure any intermediate temperature value, for example an arithmetic mean value between the temperature values T1,? Tn.

In a particular embodiment, the unit? data processing 104? configured to calculate, on the aforementioned part of each Img1-Imgn thermal image, a maximum temperature value Tmax. Where there? is executed, the unit? data processing 104 calculates the predicted median value of temperature Tme by calculating the median of the n maximum values of temperature Tmax detected on each thermographic image, and transmits and / or supplies to the subject 106 the body temperature value T corresponding to the median value of temperature Tme , what in this case? based on the maximum temperatures measured on the thermographic images. The use of the maximum temperatures measured, in particular in combination with the electronic calculation of a median temperature value calculated on at least part of a plurality of of images advantageously reduces the risk of providing on the monitor 103 a lower body temperature value T than what should be provided. The Applicant has in particular observed that providing a correct temperature value, and in particular not lower than a true value,? of particular relevance in the context of a body temperature measurement. In particular, in fact, there? helps to reduce the risk of providing false indications of negativity? of feverish state.

In a particular embodiment, the device 100 object of the present disclosure? configured to transmit an alarm signal when the subject's body temperature T 106? greater than or equal to, or alternatively greater than, a temperature threshold Ts previously stored on the memory operatively accessible to the unit? data processing 104. Following the assignment of the body temperature value T according to the algorithm previously described, the following two conditions can therefore occur:

- if this body temperature value T is greater than or equal to, or alternatively greater than, the temperature threshold Ts, the device 100 transmits the aforementioned alarm signal;

- if this body temperature value T is lower, alternatively lower or equal, to the temperature threshold Ts, the device 100 does not transmit the aforementioned alarm signal.

This warning signal can? take any form and not limitedly include a visual signal (for example a red background, in case of exceeding the threshold) transmitted on the monitor 103 by the unit? of data processing 104 and / or a sound signal activated by, or through, the unit? data processing 104.

In a particular embodiment, the device object of the present disclosure? configured to perform a facial recognition of the subject 106, so that? body temperature can be measured effectively and reliably? even better. For this purpose, the unit? of data processing 104 pu? be configured to identify on at least the first thermal image, in particular and optionally on each thermal image Img1-Imgn, the face of the subject 106 or more? in general of the sensitive and / or uncovered portion of the subject 106, and to automatically assign? when subject 106's face is detected? the body temperature value T measured at the face or in any case at a predetermined measurement area of the sensitive and / or uncovered portion.

In an alternate embodiment, the subject's face identification 106, or more? in general of the sensitive and / or uncovered portion of the subject 106, pu? take place by means of an auxiliary image, corresponding to the first Img1 thermographic image; this auxiliary image can? be for example an image of the subject 106 captured by a visible radiation video camera. In this embodiment, in order to reduce perspective distortions, the video camera can? conveniently be positioned in correspondence with the infrared sensor 101. In this case, technically the facial recognition can? be performed on an image in visible radiation, and once a certain area corresponds to the subject's face? been identified on the aforementioned image, the coordinates of the area are electronically transferred to the thermographic image to continue measuring the temperature on the latter.

In a particular embodiment, the unit? data processing 104? configured to perform a further refinement operation of the measurement of the subject's body temperature 106; this further refinement operation includes the selection, in the area of the thermographic image corresponding to the face, of an area in the vicinity of the face. of the eyes, in particular of the tear ducts, to take a reading of the subject's body temperature T 106.

The Applicant points out that the facial recognition function can? be performed not only in association with the calculations of the median and / or maximum temperature as previously described, but also as an alternative function to those previously described. However, if performed in association with the median and / or maximum temperature calculations previously described, the subject's face 106 will represent? therefore the sensitive and / or uncovered area, that is? that portion of the image on which the median temperature calculations Tme are carried out electronically and / or on which the maximum temperature measurements are made.

The Applicant observes that the infrared sensors 101 are particularly efficient in carrying out a relative temperature measurement, and less efficient in carrying out an absolute temperature measurement. In a particular embodiment, the device 100 object of the present disclosure by means of the infrared sensor 101 measures a relative temperature value, and compared with respect to a reference temperature value. An absolute value must be assigned to this reference temperature value (for example, 10? C) so that? the measurement of body temperature T can in turn be expressed with an absolute value on the right scale.

To optimize the accuracy with which the absolute temperature value (for example, 37.5? C) can? given as the body temperature value T of the subject 106, some calibration procedures, or compensation of the ambient temperature, have been devised, which are described in detail below. The purpose of the calibration procedures described below? to provide a Tref reference temperature value, so that? by means of a calculation made by the unit? data processing 104, on the basis of the thermographic image produced by the infrared sensor 101, the points or pixels of the thermographic image can assume an absolute temperature value.

Such calibration procedures, how will it be? better clarified by reading the following portion of the description, they can be manual, ie carried out on the basis of the will of an operator, or automatic, ie carried out automatically on the basis of the operational configuration of the unit? of data processing 104 and / or on the basis of the program that from it? performed.

In particular, some of the calibration procedures that will be described below will be aimed at allowing to identify a temperature value of a background of the thermographic image, where for? Background? we mean at least part of the areas not occupied by the subject 106. By? background? can you? also? meaning an element, operatively associated with the device 100 described herein, such as for example and not limited to a panel.

A first calibration procedure can? understand a reading of an environmental thermometric value, therefore used as the reference temperature Tref. Such a reading? carried out by connecting the unit? of data processing 104 with an electronic thermometer, or equivalent temperature measuring device, conveniently positioned in a position surrounding the subject 106 but in a position such as not to be influenced nor? from heat sources n? from external cooling sources. The electronic thermometer can? be operationally connected to the unit? data processing 104.

Following the establishment of the operational connection between the electronic thermometer and the unit? data processing 104, an ambient temperature value is read, in particular an absolute ambient temperature value (for example 22? C), and this ambient temperature value therefore becomes an input data received by the unit? data processing 104. The ambient temperature value is electronically assigned by the unit? of data processing 104 to the areas of? background? of the thermal image. In this way, the unit? processor 104 electronically assigns an absolute temperature value to each pixel of each thermal image Img1-Imgn. The electronic thermometer can? alternatively be replaced by an equivalent ambient temperature sensor.

The procedure for reading the ambient temperature value described above can? be performed at predetermined time intervals, or can? alternatively be activated manually by an operator.

Alternatively, a calibration procedure can? understand an entry of a Tref reference temperature data by an operator. The Tref reference temperature data also represents an input data received from the unit? data processing 104.

The calibration procedure can? understand the positioning of a screen or panel 200, schematically represented in Figure 1, at a predetermined distance with respect to the infrared sensor 101. In this way, when the subject 106 is not? present, the scene 105 taken by the infrared sensor 101 comprender? basically just the screen or panel 200.

Whether the reference temperature is measured through the electronic thermometer or through a manual entry made by the operator, if the screen or panel 200 is present, the unit? of data processing 104? read? on the pixels or points of the thermographic image corresponding to the screen or panel 200, a temperature equal to the reference temperature Tref.

Alternatively, the calibration procedure can? comprising a measurement of a body temperature of a reference sample subject by a known method, in particular and not limitedly by means of a contact thermometer; subsequently, the calibration procedure will include? the start of an operating configuration (here defined as an operating configuration for calibration and / or ambient temperature compensation) of the unit? of data processing 104 so that? the body temperature T of the subject 106 is measured according to one of the procedures described herein.

However, this body temperature T will not be? transmitted and / or supplied to the subject 106 as it happens outside the calibration procedure, but it will come? also? assigned as the relative reference temperature. The relative reference temperature is electronically transformed into Tref reference temperature (absolute value) through, for example, a manual operation by an operator, who introduces in the unit? data processing 104 an electronic datum corresponding to the body temperature of the reference sample subject. For example, according to this calibration procedure, the relative reference temperature can? be 17? C with respect to the background, and with the introduction of the electronic data corresponding to the body temperature of the subject 106, for example measured at a value of 36.9? C, the reference temperature Tref will be? 19.9? C.

A preferred and non-limiting embodiment of the device 100 object of the present disclosure? configured to present on the monitor 103 a selection area 103a which represents a preferential area in which the subject 106 must position his / her face in order to body temperature reading can be optimized using the infrared sensor 101. Subject's face 106? indicated on the monitor with the reference 103c. Preferably, this selection area 103a has a fixed position on the area of the monitor 103, and in a preferred and non-limiting embodiment it takes the form substantially of an oval. The Applicant has observed that the face of a subject 106 typically has a vaguely oval shape, and therefore the substantially oval shape represents the best guide to allow correct centering of the face with respect to the scene 105 captured by the infrared sensor 101.

The Applicant also has? observed that the body temperature can? be influenced by certain activities? performed by the subject 106; the Applicant noted that pu? there is an association between the increase in the subject's body temperature 106 and the increase in heart rate. For example, lifting efforts or rapid movements (e.g., running) of the subject 106 may increase the heart rate and body temperature of the subject. This temperature increase, observes the Applicant, can? not necessarily be pathological, but it can? be an indication of alteration of the physical condition of the subject 106 with respect to a condition of rest.

Therefore a particular embodiment of the device 100 can? be configured to detect a heart rate of the subject 106; for example, this heart rate can? be detected by a camera and / or by the infrared sensor 101, and / or acoustically and / or by a pressure signal (for example detected by an inflatable cuff) and / or by an electrical signal taken from an electrode positioned on the subject 106 and / or by means of a pulsometer or pulse oximeter.

The device 100 can? therefore being able to transmit and / or provide the body temperature value T in association with a distinctive indication between the condition of rest and the condition of exertion or alteration and / or in association with the heart rate value detected.

The unit? of data processing 104 pu? in this case be configured to perform a procedure for verifying the heart rate of the subject 106: the heart rate detected by the body of the subject 106 is electronically compared with a range of standard values for rest conditions; if this heart rate is outside the range of standard values for the said rest conditions, the unit? processor 104 sends an alert signal with which it informs the subject 106, preferably by means of a message on the monitor 103, that his physical condition is not? of rest and that therefore the measured body temperature T could be altered by the condition of exertion or alteration of the subject 106. The procedure of checking the heart rate can? be technically performed in parallel with the measurement of the body temperature T of the subject 106 or, alternatively, following the completion of the measurement and / or following the transmission and / or supply of the body temperature T value to the subject 106.

When the device 100 is activated, the unit? data processing 104 typically configures the device 100 in a mode? operational reading of a body temperature, in which to allow a subject 106 to measure his own body temperature,? it is sufficient to approach the device 100 itself so as to find oneself within the scene 105 taken by the infrared sensor 101 (block 1000, figure 3). Before subject 106 enters scene 105, monitor 103 will project? a thermal image of the background taken, and when the screen or panel 200 is present, this thermal image will be? a thermographic image of substantially uniform temperature, such as that of the screen or panel 200 is supposed to be. appear static, but in fact it represents a thermal video of what? that the infrared sensor 101 picks up. The capture frame rate of the thermal images will be? conveniently chosen by the unit? of data processing 104, and in a non-limiting embodiment it can? eg be 10fps, or 20pfs.

Then begins a phase of temperature measurement (block 1001, figure 3) on the thermographic image which? produced by the infrared sensor 101. As subject 106 approaches the selection area 103a, the average temperature of the image begins to rise and, when subject 106? centered in the selection area 103a, and the unit? of data processing 104 has completed the facial recognition procedure 1002 the measurement of the body temperature T of the subject 106 pu? be actually started by the unit? data processing 104.

In the facial recognition procedure 1002 pu? be electronically identified in detail by the unit? data processing 104 the portion close to the eyes, in particular close to the tear ducts, on which to take the temperature reading. This action corresponds in figure 3 to the identification of the optimal measurement point of block 1007. The facial recognition procedure can? also? comprise an electronic movement identification (block 1003, figure 3). In this case, if the unit? of data processing 104 detects an excessive movement of the subject 106 with respect to the infrared sensor 101, in particular a transverse movement of the subject 106 with respect to the infrared sensor 101, the unit? data processing 104 transmit? towards the monitor 103 a movement stop signal that allows the subject 106 to understand the need? to take a position pi? static with respect to the device disclosed herein.

The Applicant has observed that a detection of a maximum temperature in an area other than the tear ducts can? be an indication of a read error. For this reason, if the maximum temperature value Tmax is detected outside a predetermined measurement area, in particular including at least the tear duct area, the unit? of data processing 104 pu? be configured to issue an error signal.

Alternatively, or in combination, the facial recognition procedure can? understand the electronic and automatic identification, by the unit? data processing 104, of objects positioned on the face, for example and not limited to glasses or masks, which being interposed between the face and the infrared sensor 101 could interfere with the reading of the correct body temperature (block 1008, figure 3). In this case, the unit? data processing 104 transmit? towards the monitor 103 an alert signal, designed to make the subject 106 understand the need? to remove such objects from the face. Following the transmission of this signal, the unit? data processing 104 resumes the facial recognition procedure automatically, in order to verify whether the subject 106 has really removed the aforementioned objects.

Therefore, a phase of elaboration of the thermographic image takes place (block 1004, figure 3), in which the unit? of data processing 104 consider a plurality? of Img1-Imgn thermographic images on which to read the temperatures in the mode? previously described. The body temperature is provided (block 1005, figure 3) in a predefined area 103b of the monitor 103 which for example? positioned under the oval representing the selection area 103a.

In the introductory portion of the present detailed description, it was specified that the device 100 object of the present disclosure? configured to allow a self-measurement of body temperature without contact, in particular without direct contact at least between the infrared sensor 101 and the subject 106, and that in particular the measurement of the body temperature can? take place without any contact with any part of the device 100. Conveniently, a particular embodiment of the device 100? configured to perform a reset procedure of the body temperature T transmitted and / or supplied to the subject 106. This allows for example to carry out the following sequence of self-measurement of body temperature without contact, with a plurality of of subjects 106:

- a first subject 106 approaches the device 100, enters the scene 105, and by means of the previously described procedure its body temperature T is determined and subsequently transmitted and / or supplied;

- the first subject 106 moves away from the device 100, and the determined temperature is reset;

- a second subject 106 approaches the device 100, enters the scene 105, and by means of the previously described procedure, its body temperature T is determined and subsequently transmitted and / or supplied;

- the second subject 106 moves away from the device 100 and the determined temperature is reset.

Pi? in detail, the measurement reset procedure is started in relation to a predefined alteration of at least one average temperature and / or image representation, detected in at least one second thermal image Img2 with respect to the first thermal image Img1, in particular by being started when the unit? data processing 104 detects a predefined alteration of at least one average temperature detected in the at least one second thermal image Img2 with respect to the first thermal image Img1.

Pi? in detail, the predefined alteration comprises a reduction of an average temperature of at least a second thermal image Img2 with respect to the first thermal image Img1, and / or includes a disappearance of the sensitive and / or discovered portion previously identified by the unit? data processing 104 on at least one first thermal image Img1, and / or on the second thermal image Img2.

Thanks to this last feature? possible to make various temperature measurements at a large amount? of subjects quickly, without the subject having to have knowledge of particular operations for the interaction with the device 100. This configuration is therefore particularly advantageous in airports and / or railway stations and / or supermarkets or in any case wherever it is necessary to examine in time rapid high numbers of people.

The method of measuring body temperature that is the subject of this disclosure also? can comprising a step for correcting the temperature measured by means of the infrared sensor 101; this phase is s? that the unit? data processing 104 determines the body temperature T on the basis of the infrared radiation 107 detected by the infrared sensor 101 and on the basis of a correction factor, which is applied to the temperature value measured in the sensitive or uncovered area and / or calculated on the basis of the moving average and in particular of the aforementioned intermediate temperature value Tme. Such a corrective factor? in particular a factor suitable to increase in a predetermined way the measured temperature value so that? the body temperature value T supplied and / or transmitted to the subject 106 is representative of the actual internal body temperature of the subject.

In accordance with the foregoing description, the Applicant has therefore conceived a first embodiment of a computer program, capable of being executed by at least one unit? of data processing 104 and comprising portions of software code which when executed cause the execution of an electronic reception of an image signal, transmitted by the infrared sensor 101 which? configured to frame, in use, a sensitive and / or uncovered portion of the first subject 106 on which to measure a body temperature T and to detect an infrared radiation 107 transmitted by the first subject 106; as previously described, the electronic reception takes place on the unit? of data processing 104, which? operatively connected to infrared sensor 101.

The portions of software code when executed also? cause the execution of the electronic temperature measurement step 1001, which in particular comprises an acquisition (through the electronic reception of an image signal) of at least a first Img1 thermographic image of a given scene 105 taken by the infrared sensor 101, where in scene 105 use? capable of comprising at least part of the first subject 106, in particular the sensitive and / or uncovered portion of the first subject 106, so that it is possible to detect a body temperature T. In particular, the computer program? conceived to cause the acquisition of a plurality of thermographic images of a given scene 105 which includes in use at least the sensitive and / or uncovered portion of the first subject 106.

The portions of software code can cause the execution of a noise reduction algorithm, which includes the electronic calculation of a moving average calculated on a first plurality. temperatures T1, T2, detected on at least part of the thermographic images and previously acquired.

The portions of software code also? can cause the execution of a temperature measurement noise reduction algorithm, in which a moving average is electronically calculated between at least a first T1 temperature detected on at least part of the first Img1 thermographic image and at least a second T2 temperature detected on at least part of a second Img2 thermal image acquired through the infrared sensor 101.

Such portions of software code also cause the execution? of the phase of transmission and / or supply to the first subject 106 of the body temperature value T to the first subject 106, in particular by assigning to the body temperature value T a temperature value calculated by means of the moving average or, more? in general as a function of at least the moving average and optional other correction factors.

What? by doing, the step of transmission and / or supply to the first subject 106 and / or the step of electronic temperature measurement 1001 take place automatically, so that? subject 106 can perform a non-contact self-measurement of body temperature.

The Applicant also has? conceived an alternative embodiment of the previously described computer program. In this alternative embodiment, the computer program comprises portions of software code which when executed cause the execution of an electronic reception of an image signal, transmitted by the infrared sensor 101 which? configured to frame, in use, a sensitive and / or uncovered portion of the first subject 106 on which to measure a body temperature T and to detect an infrared radiation 107 transmitted by the first subject 106; as previously described, the electronic reception takes place on the unit? of data processing 104, which? operatively connected to the infrared sensor 101. The portions of software code when executed also? cause the execution of the electronic temperature measurement step 1001, which in particular comprises an acquisition of at least a first thermal image Img1 of a given scene 105 taken by the infrared sensor 101, in which scene 105 is in use. capable of comprising at least part of the first subject 106, in particular the sensitive and / or uncovered portion of the first subject 106, so that it is possible to detect a body temperature T.

Unlike the previous embodiment, in this latter embodiment the computer program comprises portions of software code which, when executed, cause the execution of a facial recognition subroutine, preferably started automatically, of the sensitive portion and / or discovery, in particular of the face, of the first subject 106 within the at least one first thermal image Img1 or within an auxiliary image corresponding to the first thermal image Img1, and cause the execution of a procedure for assigning a temperature value Body T of the first subject 106 assigning to this body temperature value T a temperature measured in a predetermined measurement area of the sensitive and / or uncovered portion.

Bench? not described in detail here, the software code portions of any embodiment of the computer program described here are configured to perform any previously described calculation step. For example, and not limited to, the software program can? cause the addition of a corrective factor to the body temperature T measured by the infrared sensor 101, and this addition takes place before the supply and / or transmission of the body temperature value T to the subject 106, so that? this value of body temperature T is in fact a value already? previously corrected by means of the corrective factor.

Also, and not in a limiting way, in the software program described here, the portions of software code, when executed, can cause the execution of an electronic calculation in which the temperature value calculated by means of the moving average includes, or?, A value temperature intermediate Tme between at least a first temperature T1 detected on at least part of the first thermographic image Img1 and a second temperature T2 detected on at least part of a second thermographic image Img2 acquired by infrared sensor 101.

The advantages of the device, method and computer program described up to now are clear in the light of the preceding description. They allow the simple and reliable execution of a self-measurement of body temperature without the need for that the first subject 106 comes into contact with any part of the device itself. Where more? subjects, and therefore at least a first and a second subject 106 carry out the self-measurement of the body temperature, this self-measurement will take place? without that n? the first subject 106, n? the second subject 106 have no contact with the device.

The invention is not? limited to the embodiments of the figures: therefore, the reference signs placed in brackets in the appended claims must not be construed as limiting in any way, since are introduced with the exclusive purpose of increasing the intelligibility? of the claims.

? finally, it is clear that additions, modifications or variations may be applied to the object of this disclosure without thereby departing from the scope of protection provided by the attached claims.

Claims (10)

CLAIMS 1. Device for measuring the body temperature (100) of a subject, comprising: - an infrared sensor (101) configured to be positioned in use in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of a first subject (106), in particular the face of the first subject (106), in order to detect infrared radiation (107) transmitted by the first subject (106) and configured to allow in use the acquisition of at least a first thermographic image (Img1) of a given scene (105) including at least the sensitive and / or uncovered portion of the first subject (106), in order to detect a temperature (T) corporeal; - a? unit? data processing unit (104) operatively connected with the infrared sensor (101) and configured to electronically determine a body temperature (T) value of the first subject (106) at least on the basis of infrared radiation (107) detected by the infrared sensor ( 101); the unit? data processing (104) being configured to perform a facial recognition procedure (1002) comprising electronic and automatic identification of the sensitive and / or uncovered portion of the first subject (106), in particular of the face of the first subject (106), within the at least one first thermographic image (Img1) or in an auxiliary image corresponding to the first thermographic image (Img1), and to determine the body temperature (T) of the first subject (106) as a function of at least a temperature measured in a predetermined measurement area of the sensitive and / or uncovered portion of the first subject (106). Device according to claim 1, wherein the body temperature measuring device (100)? configured to allow a contactless self-measurement of the temperature by the first subject (106) and / or comprises at least one monitor (103), operatively connected to the unit? data processing (104), the monitor (103) being configured to present the thermal image substantially in real time with a thermal scene (105) captured by the infrared sensor (101) and / or to display the temperature value (T ) body in a predetermined portion or area (103b) of the monitor (103), and / or in which the body temperature measuring device (100)? further configured to transmit the body temperature value (T) to a predetermined remote electronic device, operatively associated with the first subject (106), to a controller subject or to an automated information system. 3. Device according to claim 2, configured to display on the monitor (103) a selection area (103a) within which, in use, the first subject (106), by means of a displacement with respect to the infrared sensor (101), must he position and / or make his face substantially retract so that? it is possible, for the device for measuring body temperature (100), to carry out a measurement of body temperature (T), the face representing the said sensitive and / or uncovered portion and / or in which the infrared sensor (101) and the monitor (103) are coupled to a support structure and both oriented towards the same positioning area of the first subject (106), so as to allow the self-measurement of the temperature without contact by the first subject (106) and direct reporting to the same of its body temperature (T) value. Device according to claims 1, 2 or 3, wherein the facial recognition procedure (1002) further comprises: - identify, and optionally identify, electronically at least in the first thermographic image (Img1) the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106); And - if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified, automatically assign, as the body temperature (T) of the first subject (106), the temperature detected within the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106) or as a function of a moving average calculated at least on a first plurality of temperature values (T1, T2) detected on the first thermographic image (Img1) and / or on a second thermographic image (Img2); and / or in which the unit? processing data (104), if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified,? configured to identify and select which predetermined measurement area the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), especially in the vicinity? of the lacrimal duct. 5. Device according to one or more? of the previous claims, in which the unit? data processing (104)? configured to detect and / or electronically identify automatically if on the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), there are foreign objects capable of interfering with the temperature measurement (T) and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101); optionally said objects comprising at least glasses, and / or in which the unit? data processing (104)? configured to transmit an alert or error signal if the presence of objects capable of interfering with the temperature measurement (T) is detected and / or there are objects between the sensitive and / or uncovered portion of the first subject (106) and the infrared sensor (101). 6. Device according to any one of the preceding claims, in which the unit? data processing (104)? configured to determine the body temperature value (T) of the first subject (106) as a function of at least a maximum temperature value detected in one or more? thermographic images of the first subject (106) and / or in the sensitive and / or uncovered portion of the first subject (106) and to verify whether or not this maximum detected temperature value has been detected in correspondence with a predetermined measurement area, preferably in correspondence of the area substantially positioned in the vicinity? of the eyes of the face of the first subject (106), especially in the vicinity? of the lacrimal duct, called unit? data processing unit (104) being further configured to provide an alert or error signal in the event that said maximum detected temperature value has not been detected in correspondence with said predetermined measurement area. 7. Device according to one or more? of the previous claims, in which the unit? data processing (104)? configured to perform a temperature measurement noise reduction algorithm, the algorithm comprising an electronic calculation of a moving average calculated at least on a first plurality of of temperature values (T1, T2) detected on a plurality? of thermographic images (Img1, Img2); the unit? data processing (104) being further configured to determine the body temperature (T) value of the first subject as a function at least of the moving average and to transmit and / or supply to the first subject (106) the body temperature (T) value of the first subject (106), and / or in which the temperature (T) calculated as a function of the moving average includes, or?, an intermediate temperature value (Tme) between at least a first temperature (T1) detected on at least part of the first thermographic image (Img1) and a second temperature (T2) detected on at least part of a second thermographic image (Img2) acquired by means of an infrared sensor (101), and in which the intermediate temperature value (Tme)? an average temperature value or? a median temperature value. 8. Device according to one or more? of the preceding claims, configured to be operatively connected with a device adapted to measure a heart rate of the first subject (106) and d? configured to electronically detect and distinguish at least one resting condition of the first subject (106) from an exertion or alteration condition of the first subject (106) based on the heart rate of the first subject (106); the body temperature measurement device (100) being configured to transmit and / or provide the first subject (106) with the body temperature value (T) preferably in association with information relating to the measured heart rate and / or to a? distinctive indication between the condition of rest and the condition of effort or alteration; the device for measuring body temperature (100) being optionally configured to transmit an appropriate information signal, if the body temperature value (T) is measured in the stress or alteration condition. 9. A method for measuring the body temperature (100) of a subject (106), comprising: - a positioning phase (1000) of a first subject (106) in the vicinity? of an infrared sensor (101) positioned in at least a predetermined position with respect to the ground so? to be able to frame, in use, a sensitive and / or uncovered portion of the first subject (106) in order to detect an infrared radiation (107) transmitted by the first subject (106), the sensitive and / or uncovered portion comprising the face of the first subject (106); - an electronic temperature measurement step (1001) comprising an acquisition of at least a first thermographic image (Img1) of a certain scene (105) taken by the infrared sensor (101), in use comprising at least part of the first subject (106) , in particular the sensitive and / or uncovered portion of the first subject (106), in order to detect a body temperature (T), and in which - in association with the electronic temperature measurement phase (1001), a? unit? data processing unit (104) operatively connected with the infrared sensor (101) determines the body temperature (T) at least on the basis of the infrared radiation (107) detected by the infrared sensor (101) and performs a facial recognition phase (1002) comprising an electronic and automatic identification of the sensitive and / or uncovered portion, in particular of the face, of the first subject (106) within the at least one first thermographic image (Img1), or in an auxiliary image corresponding to the first thermographic image (Img1 ), and performs a procedure for calculating a body temperature (T) value of the first subject (106) as a function of at least a temperature measured in a predetermined measurement area of the sensitive and / or uncovered portion of the first subject (106). Method according to claim 9, wherein the method? configured to allow the first subject (106) to perform a self-measurement, without contact, of their own body temperature, and / or in which in the facial recognition phase (1002), the unit? data processing (104): - identifies, and optionally identifies, electronically at least in the first thermographic image (Img1) the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106); And - if the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106), has been identified at least in the first thermographic image (Img1), it electronically attributes, as a body temperature (T) value of the first subject (106) a temperature calculated as a function of the temperature detected within the sensitive and / or uncovered portion of the first subject (106), in particular the face of the first subject (106) or as a function of a moving average calculated at least on a first plurality? of temperature values (T1, T2) detected on the first thermographic image (Img1) and / or on a second thermographic image (Img2).