JP7104451B1 - Warmth monitor device and warmth monitor system - Google Patents

Abstract

A temperature monitor device is a device that acquires body temperature data of a subject by a non-contact method. The temperature monitor includes an infrared temperature sensor for receiving infrared rays from the person to be measured and measuring the body surface temperature of the person to be measured, and a part of the body of the person to be measured from the temperature monitor. A first distance sensor that measures the distance to the measured part, an outside air temperature sensor that measures the outside air temperature, and data indicating the correlation between the distance, the outside air temperature, and the body surface temperature correction value are stored. a data storage unit, which selects the correction value corresponding to the distance and the outside air temperature based on the data, and calculates a predicted body temperature of the person to be measured by correcting the body surface temperature by the correction value; and a body temperature predictor.

Description

The present disclosure relates to a warmth monitor device and a warmth monitor system including the same.

Conventionally, non-contact infrared radiation thermometers have been widely used in hospitals and other facilities to determine the heat generation state of visitors. This type of technique is described, for example, in Patent Document 1.

The non-contact infrared radiation thermometer described in Patent Document 1 considers that the skin surface temperature of the person to be measured fluctuates under the influence of the outside air temperature, and the measured value of the skin surface temperature is based on a predetermined calculation formula. It is converted to body temperature. Specifically, the arithmetic unit of this thermometer incorporates software that calculates the body temperature of the person to be measured based on the outside air temperature (room temperature) and the skin surface temperature. Using this system, it is possible to predict the body temperature of the person to be measured from the measured values of the outside air temperature and the skin surface temperature.

Japanese Unexamined Patent Publication No. 2005-148038

As described above, the non-contact infrared radiation thermometer described in Patent Document 1 predicts the body temperature of the person to be measured by a predetermined arithmetic process in consideration of the fluctuation of the skin surface temperature due to the outside air temperature. However, there is a problem that the accuracy of body temperature prediction is not sufficient even in the arithmetic processing considering the outside air temperature.

An object of the present disclosure is to provide a warm sensation monitor device capable of measuring the body temperature of a person to be measured with higher accuracy and a warm sensation monitor system including the warm sensation monitor device.

The warmth monitoring device according to the present disclosure is a device that acquires body temperature data of a person to be measured by a non-contact method. This warmth monitor device is an infrared temperature sensor that receives infrared rays from the person to be measured and measures the body surface temperature of the person to be measured, and a part of the body of the person to be measured from the warmth monitor device. The first distance sensor that measures the distance to the part to be measured, the outside air temperature sensor that measures the outside air temperature, and the data showing the correlation between the distance and the outside air temperature and the correction value of the body surface temperature are stored. The predicted body temperature of the person to be measured is calculated by selecting the data storage unit and the correction value corresponding to the distance and the outside air temperature based on the data, and correcting the body surface temperature by the correction value. It is equipped with a body temperature prediction unit.

According to the present disclosure, it is possible to provide a warm sensation monitor device capable of measuring the body temperature of a person to be measured with higher accuracy and a warm sensation monitor system including the warm sensation monitor device.

FIG. 1 is a diagram schematically showing a configuration of a warm sensation monitor system and a warm sensation monitor device according to the first embodiment. FIG. 2 is a diagram schematically showing a system configuration of the warmth monitoring device according to the first embodiment. FIG. 3 is a diagram schematically showing a state of body temperature measurement by the warmth monitoring device according to the first embodiment. FIG. 4 is a diagram schematically showing a configuration of an alcohol disinfectant liquid spraying mechanism in the warmth monitoring device according to the first embodiment. FIG. 5 is a graph schematically showing the correlation between the outside air temperature and the correction value of the body surface temperature. FIG. 6 is a graph schematically showing the correlation between the distance from the warmth monitoring device to a part of the body of the person to be measured and the correction value of the body surface temperature. FIG. 7 is a flowchart for explaining the operation of the warmth monitoring device according to the first embodiment. FIG. 8 is a flowchart for explaining the mask determination step. FIG. 9 is a flowchart for explaining the body temperature prediction step. FIG. 10 is a flowchart for explaining the alcohol disinfection step.

[Outline of Embodiment]
The warmth monitoring device according to the present disclosure is a device that acquires body temperature data of a person to be measured by a non-contact method. This warmth monitor device is an infrared temperature sensor that receives infrared rays from the person to be measured and measures the body surface temperature of the person to be measured, and a part of the body of the person to be measured from the warmth monitor device. The first distance sensor that measures the distance to the part to be measured, the outside air temperature sensor that measures the outside air temperature, and the data showing the correlation between the distance and the outside air temperature and the correction value of the body surface temperature are stored. The predicted body temperature of the person to be measured is calculated by selecting the data storage unit and the correction value corresponding to the distance and the outside air temperature based on the data, and correcting the body surface temperature by the correction value. It is equipped with a body temperature prediction unit.

A detailed study was conducted on measures to improve the accuracy of body temperature prediction by the warmth monitoring device. As a result, in addition to the outside air temperature, other factors such as the distance from the warmth monitoring device to a part of the body of the person to be measured are factors that affect the body surface temperature of the person to be measured measured by the infrared temperature sensor. It was newly discovered that it exists.

The present disclosure has been made based on the above-mentioned viewpoints. According to the warmth monitoring device according to the present disclosure, the distance from the warmth monitoring device to the measured portion which is a part of the body of the person to be measured and the correlation between the outside air temperature and the correction value of the body surface temperature are shown. The predicted body temperature of the person to be measured is calculated by selecting a correction value corresponding to the distance and the outside air temperature based on the data and correcting the measured value of the body surface temperature by the correction value. Therefore, the body temperature of the person to be measured can be predicted with higher accuracy than the device that does not consider the influence of the distance from the warmth monitoring device to a part of the body of the person to be measured.

The warmth monitoring device may further include a camera that acquires the face image of the person to be measured, and a mask determination unit that determines whether or not the person to be measured wears a mask based on the face image. .. According to this configuration, it is possible to acquire data on whether or not a mask is worn as well as body temperature data of the person to be measured.

The warmth monitoring device may further include a camera that acquires a face image of the person to be measured, and an age determination unit that determines the age of the person to be measured based on the face image. Further, the warmth monitoring device may further include a camera that acquires the face image of the person to be measured, and a gender determination unit that determines the gender of the person to be measured based on the face image. According to this configuration, attribute data related to the age and gender of the person to be measured can be extracted from the face image, so that it is not necessary to transmit the face image data itself to the outside of the warmth monitoring device. Therefore, the communication capacity can be reduced, and the storage capacity at the data transmission destination can be reduced.

The warmth monitor device is measured by a pump that sends a disinfectant solution to a spray port, a second distance sensor that measures the distance from the warmth monitor device to the hand of the person to be measured, and the second distance sensor. A pump that drives the pump based on a distance determination unit that determines whether or not the distance is less than or equal to the set distance and the distance measured by the second distance sensor that is less than or equal to the set distance. It may further include a drive unit. According to this configuration, the disinfectant solution is automatically sprayed when the person to be measured brings his / her hand close to the warmth monitoring device, so that the fingers can be easily disinfected.

The warmth monitoring device may be configured to store the predicted body temperature data for each person to be measured in the device. According to this configuration, the accumulated data can be used for statistical processing and the like.

The warmth monitoring device may be configured to transmit the predicted body temperature data to the outside of the device. According to this configuration, the predicted body temperature data can be used on an external server or terminal.

The warmth monitoring device may be configured to store the face image data in the device. The warmth monitoring device transmits the data of the face image to the outside of the device when the predicted body temperature is equal to or higher than the set temperature, and the data of the face image when the predicted body temperature is lower than the set temperature. Does not have to be transmitted to the outside of the device. According to this configuration, unlike the case where the face image data is constantly transmitted to the outside of the device, it is possible to suppress an excessive amount of data on the receiving side. Then, more detailed information (for example, the age and gender of the person to be measured) can be acquired by referring to the face image of the person to be measured only when the predicted body temperature is equal to or higher than the set temperature.

The warmth monitor system according to the present disclosure includes the warmth monitor device and an information terminal that receives data regarding the predicted body temperature, the presence / absence of wearing a mask, and the presence / absence of disinfection transmitted from the warmth monitor device. I have. According to this configuration, the above-mentioned various measurement data can be displayed and managed on the information terminal.

In the warmth monitor system, the information terminal may display data relating to the predicted body temperature, the presence / absence of wearing a mask, and the presence / absence of disinfection in association with the data of the electronic questionnaire of the person to be measured. According to this configuration, more detailed information of the visitor can be displayed and managed on the information terminal.

In the warmth monitor system, the information terminal may generate a warning signal when the predicted body temperature is equal to or higher than a set temperature. According to this configuration, the occurrence of abnormal body temperature can be promptly recognized and necessary measures can be taken.

[Specific example of embodiment]
Next, an example of a specific embodiment of the warm sensation monitor device and the warm sensation monitor system of the present disclosure will be described with reference to the drawings. In the following drawings, the same or corresponding parts are designated by the same reference numerals, and the description thereof will not be repeated.

(Embodiment 1)
First, the configurations of the warmth monitor system 1 and the warmth monitor device 2 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 6. The warmth monitor system 1 according to the present embodiment is a cloud communication type system, which is installed in a facility such as a hospital and is used to measure the body temperature of a visitor before admission. As shown in FIG. 1, the warmth monitor system 1 includes a warmth monitor device 2 installed at a hospital entrance or the like, and a monitoring terminal 3 (information terminal) communicatively connected to the warmth monitor device 2. , Is mainly provided. The monitoring terminal 3 is installed, for example, at a reception desk in a hospital, a nurse center, or the like, and receives various data transmitted from the warmth monitoring device 2 via a cloud server.

The warmth monitoring device 2 is a device that acquires body temperature data of the person to be measured by a non-contact method. FIG. 2 schematically shows the system configuration of the warmth monitoring device 2. As shown in FIG. 2, the warmth monitoring device 2 includes a housing 10, an infrared temperature sensor 11, an outside air temperature sensor 12, a laser distance sensor 13 (first distance sensor), and an infrared distance sensor 14 (second distance sensor). A distance sensor), a visible light camera 15 (camera), a disinfection pump 16 (pump), a relay 17 (pump drive unit), and a main computer 18.

The housing 10 includes each component of the warmth monitoring device 2 (infrared temperature sensor 11, outside air temperature sensor 12, laser distance sensor 13, infrared distance sensor 14, visible light camera 15, disinfection pump 16, relay 17, and main computer. 18) is housed.

FIG. 3 shows a state when the person to be measured 100 brings his / her face close to the housing 10 at the time of measuring the body temperature. As shown in FIG. 3, a part of the front surface of the housing 10 is an inclined surface 19. The inclined surface 19 is provided with a window portion 19A for irradiating the laser L1 from the laser distance sensor 13 (FIG. 2) toward the person to be measured 100, and guidance such as a message to the person to be measured 100. A display 19B (FIG. 1) for displaying various measurement results and an image of the visible light camera 15 is provided. The housing 10 is installed on the upper surface 20A of the pedestal 20 in order to adjust the height according to the height of the person to be measured 100, but is not limited thereto.

The infrared temperature sensor 11 (FIG. 2) receives infrared rays from the person to be measured 100 and measures the body surface temperature of the person to be measured 100. Specifically, the infrared temperature sensor 11 includes an infrared thermopile. The outside air temperature sensor 12 constantly measures the outside air temperature near the entrance of the hospital. The infrared temperature sensor 11 and the outside air temperature sensor 12 are communicably connected to the main computer 18 and transmit measurement data of the body surface temperature and the outside air temperature to the main computer 18.

The laser distance sensor 13 measures the distance from the warmth monitoring device 2 to the measured portion (the face of the measured person 100 in the present embodiment) which is a part of the body of the measured person 100. Specifically, the laser distance sensor 13 includes a light emitting element such as a semiconductor laser and a light receiving element (not shown), irradiates the laser L1 toward the person to be measured 100 (FIG. 3), and receives the reflected laser L1. By receiving light from the element, the distance from the irradiation unit of the laser L1 to the face of the person to be measured 100 is measured. The laser distance sensor 13 is communicably connected to the main computer 18 (FIG. 2), and transmits the measurement data of the distance to the main computer 18. The distance data is converted into the distance between the light receiving portion of the infrared temperature sensor 11 and the face of the person to be measured 100 in the main computer 18.

The infrared distance sensor 14 measures the distance from the warmth monitoring device 2 to the hand of the person to be measured 100. Like the laser distance sensor 13, the infrared distance sensor 14 includes a light emitting element and a light receiving element (not shown), irradiates infrared rays toward the hand of the person to be measured 100, and receives the reflected infrared rays by the light receiving element. Therefore, the distance from the infrared irradiation unit to the hand of the person to be measured 100 is measured. The infrared distance sensor 14 is communicably connected to the main computer 18 and transmits the measurement data of the distance to the main computer 18.

The visible light camera 15 acquires a face image of the person to be measured 100. The visible light camera 15 is communicably connected to the main computer 18 by, for example, USB, and transmits the face image data of the person to be measured 100 to the main computer 18.

FIG. 4 schematically shows the configuration of the alcohol disinfectant solution spraying mechanism in the warmth monitoring device 2. The warmth monitoring device 2 includes a tank 23 for storing an alcohol disinfectant solution. The tank 23 is installed at the bottom of the housing 10, and the outlet 23A for the alcohol disinfectant is provided at the bottom. As shown in FIG. 4, one end of the disinfectant solution supply line 21 is connected to the outlet 23A of the tank 23. The other end of the disinfectant solution supply line 21 is connected to a spray nozzle 22 provided at the lower front surface of the housing 10. The lower part of the front surface is a concave surface 22A that swells toward the rear side, and the hand 101 of the person to be measured can be put into the concave space. As shown in FIG. 4, the infrared distance sensor 14 is installed in the vicinity of the spray nozzle 22 on the concave surface 22A.

The disinfection pump 16 is for sending the alcohol disinfectant liquid stored in the tank 23 to the spray nozzle 22. As shown in FIG. 4, the disinfectant pump 16 is installed in the disinfectant liquid supply line 21. The relay 17 supplies power to the disinfection pump 16 and drives the disinfection pump 16.

As shown in FIG. 2, the main computer 18 includes a data receiving unit 31, a data transmitting unit 32, a body temperature prediction unit 33, a mask determination unit 34, a distance determination unit 35, a data storage unit 36, and data storage. A unit 37, an age determination unit 38, and a gender determination unit 39 are included. The data receiving unit 31 includes a receiver. The data transmission unit 32 includes, for example, a communication chip. The body temperature prediction unit 33, the mask determination unit 34, the age determination unit 38, the gender determination unit 39, and the distance determination unit 35 include a central processing unit (CPU: Central Processing Unit). The data storage unit 36 includes a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. The data storage unit 37 is composed of an HDD (Hard Disk Drive) or the like.

The data receiving unit 31 receives data transmitted from each sensor and camera. Specifically, the data receiving unit 31 is from the body surface temperature measurement data transmitted from the infrared temperature sensor 11, the outside air temperature measurement data transmitted from the outside air temperature sensor 12, the laser distance sensor 13 and the infrared distance sensor 14. The measurement data of the transmitted distance and the data of the face image transmitted from the visible light camera 15 are received.

The data storage unit 36 stores data showing the distance from the warmth monitoring device 2 (light receiving unit of the infrared temperature sensor 11) to the face of the person to be measured and the correlation between the outside air temperature and the correction value of the body surface temperature. Has been done. FIG. 5 schematically shows an example of this correlation data.

FIG. 5 shows the outside air temperature and the body surface temperature when the distance from the warmth monitoring device 2 (light receiving portion of the infrared temperature sensor 11) to the face of the person to be measured is the first distance L1 to the third distance L3. It is a graph which shows the relationship with the correction value. In the graph of FIG. 5, the horizontal axis represents the outside air temperature, and the vertical axis represents the correction value of the body surface temperature. The solid line in the figure is the graph of the first distance L1, the broken line is the graph of the second distance L2, and the alternate long and short dash line is the graph of the third distance L3. As shown in FIG. 5, the correction value of the body surface temperature decreases as the outside air temperature rises.

The correlation data stored in the data storage unit 36 is not limited to the data shown in FIG. For example, as shown in the graph of FIG. 6, the distance (horizontal axis) from the warmth monitoring device 2 (light receiving portion of the infrared temperature sensor 11) to the face of the person to be measured 100 and the correction value of the body surface temperature (vertical axis). Data indicating the relationship with the outside air temperature for each outside air temperature may be stored.

The body temperature prediction unit 33 (FIG. 2) receives the person to be measured from the temperature sensation monitor device 2 (light receiving unit of the infrared temperature sensor 11) based on the data (data in FIGS. 5 and 6) stored in the data storage unit 36. The predicted body temperature of the person to be measured 100 is calculated by selecting a correction value of the body surface temperature corresponding to the distance to the face of 100 and the outside air temperature and correcting the body surface temperature by the correction value. The data of the predicted body temperature is accumulated in the data storage unit 37, and is transmitted to the outside of the device (in the present embodiment, the cloud server) by the data transmission unit 32. The method of calculating the predicted body temperature will be described in detail later.

The mask determination unit 34 determines whether or not the person to be measured 100 wears a mask based on the face image of the person to be measured 100. The mask determination unit 34 in the present embodiment determines whether or not the person to be measured 100 wears a mask by using the face image of the person to be measured 100 and the Paddle-Lite library which is a program for analyzing the face image. This analysis program recognizes the position of the face of the person to be measured 100 in the image and determines whether or not the mask is worn. The determination accuracy is improved by repeating the face recognition a predetermined number of times. .. The data regarding whether or not the mask is worn is stored in the data storage unit 37 in association with the predicted body temperature data for each person to be measured 100, and is transmitted to the outside of the device (cloud server in the present embodiment) by the data transmission unit 32. To. The age determination unit 38 determines the age of the person to be measured 100 based on the face image of the person to be measured 100. Specifically, the age determination unit 38 determines the age of the person to be measured 100 by using the Keras library, which is a program for analyzing the face image. The gender determination unit 39 determines the gender of the person to be measured 100 based on the face image of the person to be measured 100. Specifically, the gender determination unit 39 determines the gender of the person to be measured 100 using the Keras library. Attribute data such as age and gender extracted from the face image in this way is also transmitted to the cloud server by the data transmission unit 32.

The distance determination unit 35 determines whether or not the distance measured by the infrared distance sensor 14 (the distance from the infrared irradiation unit to the hand of the person to be measured 100) is equal to or less than the set distance. The data of the set distance is stored in the data storage unit 36. The relay 17 drives the disinfection pump 16 based on the distance measured by the infrared distance sensor 14 being equal to or less than the set distance.

The data transmission unit 32 transmits data regarding the predicted body temperature of the person to be measured 100, the presence / absence of wearing a mask, the age, the sex, and the presence / absence of disinfection to the outside of the device in a state associated with each of the person to be measured 100. The data transmission unit 32 in the present embodiment transmits the above-mentioned various data to the monitoring terminal 3 via the cloud server. For this communication, for example, LPWA (Low Power Wide Area) such as Sigfox (registered trademark) can be used. When the warmth monitoring device 2 and the monitoring terminal 3 are connected by wire with a LAN cable or the like, the data transmission unit 32 is composed of a LAN board or the like.

The monitoring terminal 3 (FIG. 1) receives data on the predicted body temperature of the person to be measured 100, whether or not a mask is worn, age, gender, and whether or not disinfection is transmitted from the temperature sensation monitor device 2, and is used for each visitor. A list is displayed on the display 3A in a state where each data is associated with each other. This makes it possible to easily check the history of visitors. The monitoring terminal 3 generates a warning signal when the predicted body temperature of the person to be measured 100 is equal to or higher than a set temperature (for example, a temperature near 37.5 ° C.). Based on this warning signal, it is possible to notify the occurrence of abnormal body temperature by, for example, screen display or voice.

The monitoring terminal 3 displays data on the predicted body temperature of the person to be measured 100, the presence / absence of wearing a mask, age, gender, and the presence / absence of disinfection on the display 3A in association with the data of the electronic questionnaire of the person to be measured 100. The electronic questionnaire includes information such as the family living together, the presence or absence of smoking, the history of smoking, or the presence or absence of an underlying disease, and is input by the person to be measured 100.

The data storage unit 37 accumulates data on the predicted body temperature, the presence / absence of wearing a mask, age, gender, presence / absence of disinfection, and facial image data for each person to be measured 100. The warmth monitoring device 2 in the present embodiment transmits face image data to the outside of the device (cloud server) when the predicted body temperature is equal to or higher than the set temperature, and when the predicted body temperature is lower than the set temperature. Does not send facial image data to the outside of the device. That is, the warmth monitoring device 2 keeps the data of the face image of the person to be measured 100 stored in the device (data storage unit 37) unless the predicted body temperature is equal to or higher than the set temperature. This set temperature (warning temperature) is input on the setting screen of the display 19B (FIG. 2).

Next, the operation of the warmth monitoring device 2 will be described with reference to the flowcharts of FIGS. 7 to 10.

First, the warmth monitoring device 2 is activated (step S10). After the device is activated, each sensor is initialized, and it is determined whether or not the person to be measured wears a mask (step S20), the body temperature of the person to be measured 100 is predicted (step S30), and the hands and fingers of the person to be measured are disinfected with alcohol (step S20). S40) is carried out in this order. Hereinafter, each of steps S20 to S40 will be described in detail.

FIG. 8 is a flowchart showing the details of the mask determination step S20. First, an image is acquired by the visible light camera 15 (step S21), and the main computer 18 determines whether or not the face of the person to be measured 100 is included in the image (step S22). If there is a face of the person to be measured 100 in the image (YES in step S22), the process proceeds to the presence / absence determination of the mask (step S23). On the other hand, if the face of the person to be measured 100 is not included in the image (NO in step S22), the process returns to the acquisition of the camera image.

In step S23, the mask determination unit 34 determines whether or not the person to be measured 100 wears a mask by using the image of the visible light camera 15 and the image analysis program. When it is determined that the mask is worn (YES in step S23), the mask wearing confirmation flag is set in the main computer 18 (step S24).

When the above determination is repeated a predetermined number of times (for example, 10 times) (YES in step S25), the mask determination step S20 ends. On the other hand, if the number of determinations is less than the predetermined number (NO in step S25), the processes of steps S21 to S24 are performed again.

FIG. 9 is a flowchart showing the details of the body temperature prediction step S30. First, the laser distance sensor 13 measures the distance from the warmth monitoring device 2 to the face of the person to be measured 100 (step S31). This distance is converted into the distance between the light receiving portion of the infrared temperature sensor 11 and the face of the person to be measured 100.

Next, it is determined from the warmth monitoring device 2 whether or not the face of the person to be measured 100 is within a predetermined range (step S32). In step S32, the main computer 18 determines whether or not the distance measured in step S31 is within a predetermined range (for example, within a range of 4 to 45 cm). If the distance is within the predetermined range (YES in step S32), the process proceeds to the outside air temperature measurement step (step S33), and if the distance is outside the predetermined range (NO in step S32), The measurement by the laser distance sensor 13 is performed again.

In step S33, the outside air temperature sensor 12 measures the outside air temperature near the entrance of the hospital. Subsequently, in step S34, the body surface temperature of the person to be measured 100 is measured by the infrared temperature sensor 11.

Next, in step S35, the body temperature of the person to be measured 100 is predicted based on the distance measured in step S31, the outside air temperature measured in step S33, and the body surface temperature measured in step S34. .. Specifically, the following arithmetic processing is executed by the body temperature prediction unit 33.

First, the correction value of the body surface temperature is determined. Specifically, the body temperature prediction unit 33 corresponds to the correlation data (outside air temperature and body) corresponding to the distance measured in step S31 (the distance between the light receiving unit of the infrared temperature sensor 11 and the face of the person to be measured 100). Data showing the correlation with the surface temperature correction value, FIG. 5) is selected, and the body surface temperature correction value is determined based on the correlation data and the outside air temperature measured in step S33. That is, in the graph in FIG. 5, the vertical axis value when the outside air temperature measured in step S33 is taken as the horizontal axis value is determined as the correction value of the body surface temperature.

Next, the predicted body temperature of the person to be measured 100 is calculated. Specifically, the body temperature prediction unit 33 adds the correction value determined as described above to the body surface temperature measured in step S34 to calculate the predicted body temperature of the person to be measured 100.

The predicted body temperature is not limited to the case of calculating the predicted body temperature using the correlation data of FIG. 5, and the predicted body temperature may be calculated using the correlation data of FIG. Specifically, the body temperature prediction unit 33 determines the correlation data (distance from the warmth monitoring device 2 to the face of the person to be measured 100 and the correction value of the body surface temperature) corresponding to the outside air temperature measured in step S33. Data showing the correlation, FIG. 6) is selected, and based on the correlation data and the distance measured in step S31 (distance between the light receiving portion of the infrared temperature sensor 11 and the face of the person to be measured 100). Determine the correction value for body surface temperature. That is, in the graph in FIG. 6, the vertical axis value when the distance measured in step S31 is taken as the horizontal axis value is determined as the correction value of the body surface temperature.

Steps S31 to S35 are repeated until the number of calculations for predicting body temperature reaches a predetermined number of times (for example, 15 times). Then, when the number of calculations for body temperature prediction reaches a predetermined number (YES in step S36), the average value of the predicted body temperature is calculated (step S37). The main computer 18 determines whether or not the average value is equal to or higher than a set temperature (for example, a warning temperature near 37.5 ° C.). When the average value is equal to or higher than the set temperature, the information is transmitted to the monitoring terminal 3, and the monitoring terminal 3 generates a warning signal. As a result, it is possible to notify the person in charge in the hospital and share the information in the hospital to prevent nosocomial infections and cluster outbreaks. At this time, guidance such as "Please contact the fever outpatient department" is displayed on the display 19B of the warmth monitoring device 2. In calculating the average value of the predicted body temperature, only data having a predetermined lower limit temperature (for example, 35 ° C.) or higher is used. If there is no data above the lower limit temperature, the average value is not calculated and the maximum value data is used.

FIG. 10 is a flowchart showing the details of the alcohol disinfection step S40. First, the infrared distance sensor 14 measures the distance from the infrared irradiation unit to the hand 101 of the person to be measured 100 (step S41). The data of this distance is transmitted to the main computer 18.

Next, it is determined from the warmth monitoring device 2 whether or not the hand 101 of the person to be measured 100 is within a predetermined range (step S42). Specifically, the distance determination unit 35 determines whether or not the distance measured in step S41 is equal to or less than the set distance (for example, 12 cm). If the distance is less than or equal to the set distance (YES in step S42), the process proceeds to eject the alcohol disinfectant (step S43). On the other hand, when the distance is larger than the set distance (NO in step S42), the measurement by the infrared distance sensor 14 is performed again.

In step S43, the disinfection pump 16 is driven by the relay 17 supplying power to the disinfection pump 16. As a result, the disinfectant solution is supplied from the tank 23 to the spray nozzle 22 through the disinfectant solution supply line 21. Then, the disinfectant solution is sprayed from the spray nozzle 22 toward the hand 101 of the person to be measured 100. After that, the remaining amount of the alcohol disinfectant solution is calculated in the main computer 18 (step S44), and the alcohol disinfection step S40 ends.

As shown in FIG. 7, when steps S20 to S40 are completed, the measurement data file is output to the main computer 18 (step S50). Specifically, after confirming that each measurement data in steps S20 to S40 exists, a file containing the measurement data is output. Here, the data in step S20 indicates that the mask is worn when the mask is confirmed to be worn even once out of the 10 repeated determinations. The output file is transmitted to the monitoring terminal 3 via the cloud server. At this time, in addition to the data regarding the predicted body temperature, the presence / absence of wearing a mask, and the presence / absence of disinfection, attribute data regarding the age and gender of the person to be measured 100 is also output and transmitted to the monitoring terminal 3 via the cloud server. Further, from the viewpoint of concealing information and reducing communication capacity, it is preferable that each data is transmitted as encoded processed data instead of raw data.

As described above, according to the warmth monitoring device 2 according to the present embodiment, the distance to a part of the body (for example, the face) of the person to be measured 100 and the correlation between the outside air temperature and the correction value of the body surface temperature. The predicted body temperature of the person to be measured 100 is calculated by selecting a correction value corresponding to the distance and the outside air temperature based on the data indicating the above and correcting the measured value of the body surface temperature by the correction value. Therefore, the body temperature of the person to be measured 100 can be predicted with higher accuracy than the device that does not consider the influence of the distance from the warmth monitoring device to a part of the body of the person to be measured.

(Other embodiments)
Here, other embodiments of the present invention will be described.

In the warmth monitoring device 2 according to the first embodiment, the function of determining whether or not the mask is worn may be omitted, the alcohol disinfectant solution spraying mechanism may be omitted, or the data storage function may be omitted. ..

In the first embodiment, the case where data is transmitted from the warmth monitoring device 2 to the monitoring terminal 3 via the cloud server has been described as an example, but the present invention is not limited to this. The warmth monitoring device 2 and the monitoring terminal 3 may be directly communicated with each other by WiFi, or may be connected by wire with a LAN cable or the like. When a cloud server is used, not only the measurement data from the warmth monitor device 2 installed in one hospital but also the measurement data from the warmth monitor device 2 installed in hospitals all over the country are statistically collected. It may be collected on a cloud server as data.

The installation location of the warmth monitoring device 2 is not limited to the entrance / exit of the hospital, and may be, for example, the entrance of a commercial facility or an office building.

It should be understood that the embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is shown by the claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the claims.

Claims (12)

It is a warmth monitoring device that acquires body temperature data of the person to be measured by a non-contact method.
An infrared temperature sensor that receives infrared rays from the person to be measured and measures the body surface temperature of the person to be measured,
A first distance sensor that measures the distance from the warmth monitoring device to the part to be measured, which is a part of the body of the person to be measured, and
An outside air temperature sensor that measures the outside air temperature,
A data storage unit that stores data indicating the correlation between the distance and the outside air temperature and the correction value of the body surface temperature, and
A body temperature prediction unit that calculates the predicted body temperature of the person to be measured by selecting the correction value corresponding to the distance and the outside air temperature based on the data and correcting the body surface temperature by the correction value. With,
The data has a downwardly convex curve that decreases monotonically when the outside air temperature is on the horizontal axis and the correction value is on the vertical axis for each distance, and the distance is on the horizontal axis for each outside air temperature, and the correction value. Is a downwardly convex curve that increases monotonically when Warmth monitoring device. A camera that acquires the face image of the person to be measured, and
The warmth monitoring device according to claim 1, further comprising a mask determination unit for determining whether or not the person to be measured wears a mask based on the face image. A camera that acquires the face image of the person to be measured, and
The warmth monitoring device according to claim 1, further comprising an age determination unit for determining the age of the person to be measured based on the face image. A camera that acquires the face image of the person to be measured, and
The warmth monitoring device according to claim 1, further comprising a gender determination unit that determines the gender of the person to be measured based on the face image. A pump that sends the disinfectant to the spray port,
A second distance sensor that measures the distance from the warmth monitoring device to the hand of the person to be measured, and
A distance determination unit that determines whether or not the distance measured by the second distance sensor is equal to or less than a set distance, and a distance determination unit.
The warmth monitoring device according to claim 1, further comprising a pump driving unit for driving the pump based on the distance measured by the second distance sensor being equal to or less than the set distance. A pump that sends the disinfectant to the spray port,
A second distance sensor that measures the distance from the warmth monitoring device to the hand of the person to be measured, and
A distance determination unit that determines whether or not the distance measured by the second distance sensor is equal to or less than a set distance, and a distance determination unit.
The warmth monitoring device according to claim 2, further comprising a pump driving unit for driving the pump based on the distance measured by the second distance sensor being equal to or less than the set distance. The warmth monitoring device according to any one of claims 1 to 6, which is configured to accumulate the predicted body temperature data for each person to be measured in the device. The warmth monitoring device according to any one of claims 1 to 7, which is configured to transmit the predicted body temperature data to the outside of the device. It is configured to store the face image data in the device.
When the predicted body temperature is equal to or higher than the set temperature, the face image data is transmitted to the outside of the device, and when the predicted body temperature is lower than the set temperature, the face image data is not transmitted to the outside of the device. , The warmth monitoring device according to claim 2 to 4 or 6. The warmth monitoring device according to claim 6 and
A warmth monitor system including an information terminal for receiving data regarding the predicted body temperature, the presence / absence of wearing a mask, and the presence / absence of disinfection transmitted from the warmth monitor device. The warmth monitor system according to claim 10, wherein the information terminal displays data on the predicted body temperature, the presence / absence of wearing a mask, and the presence / absence of disinfection in association with the data of the electronic questionnaire of the person to be measured. The warmth monitoring system according to claim 10 or 11, wherein the information terminal generates a warning signal when the predicted body temperature is equal to or higher than a set temperature.

Images