WO2021192325A1

WO2021192325A1 - Non-contact thermometer

Info

Publication number: WO2021192325A1
Application number: PCT/JP2020/019644
Authority: WO
Inventors: 次郎丸山; 晶生小柳; 容子夏目
Original assignee: 株式会社アールエフ
Priority date: 2020-03-27
Filing date: 2020-05-18
Publication date: 2021-09-30

Abstract

This non-contact thermometer (1) comprises a mirror (3), a proximity sensor (42), a marking light (5), a speaker (6), an infrared sensor (41), a display (7), and a control unit (8). The marking light (5) is for emitting a mark (52) toward a measurer positioned in front of the mirror (3). Upon detecting, using the proximity sensor (42), that the measurer has approached the mirror (3), the control unit (8) uses the marking light (5) to emit the mark (52) onto the measurer. The control unit (8) uses the speaker (6) to output a body temperature measurement advance notification sound and calculates a body temperature on the basis of a measured value from the infrared sensor (41). The control unit (8) uses the speaker (6) to output a body temperature measurement notification sound and displays the body temperature on the display (7).

Description

Non-contact thermometer

The present invention relates to a non-contact thermometer.

An infectious disease (COVID-19) caused by the new coronavirus that occurred in Wuhan City, Hubei Province, People's Republic of China in December 2019 is rampant all over the world. In order to prevent the spread of infection, thermometers are used to measure the temperature in various places, and people with fever, that is, people suspected of being infected, are selected. Here, a non-contact thermometer that measures body temperature by measuring the amount of infrared rays emitted by a person to be measured has become widespread (for example, Patent Document 1 as a non-contact thermometer). Non-contact thermometers are often used in temperature measurement because they can measure body temperature quickly.

Japanese Unexamined Patent Publication No. 6-347332

Here, the new coronavirus infection is considered to be a contact infection. A typical non-contact thermometer needs to be held in the hand, pressed with a switch, and then positioned at the measurement position, which requires many manual measurement operations. Therefore, a general non-contact thermometer may cause contact infection.

An object of the present invention is to provide a non-contact thermometer capable of suppressing contact infection at the time of measurement.

The gist of the present invention is as follows with reference to the reference numerals in the drawings.
(1) Mirror 3 and
A proximity sensor 42 that detects that the measurer has approached the mirror 3 and
A marking light 5 that irradiates the mark 52 toward the measurer located in front of the mirror 3 and
Speaker 6 and
An infrared sensor 41 that receives infrared rays radiated from a measurer located in front of the mirror 3 and
Display 7 and
When the proximity sensor 42 detects that the measurer has approached the mirror 3, the marking light 5 irradiates the measurer with the mark 52, and the speaker 6 outputs a warning sound for body temperature measurement, and the infrared sensor. A control unit 8 that calculates the body temperature based on the output signal of 41, outputs a notification sound of body temperature measurement by the speaker 6, and displays the body temperature on the display 7.
Non-contact thermometer 1.
(2) In the non-contact thermometer 1 according to (1),
The control unit 8 is a non-contact thermometer 1 that blinks the mark 52 by the marking light 5 when the warning sound is output.
(3) In the non-contact thermometer 1 according to (1) or (2),
A case 2 holding the mirror 3, the proximity sensor 42, the marking light 5, the speaker 6, the infrared sensor 41, the speaker 6, and the control unit 8.
A stand 22 that is connected to the case 2 and abuts on the mounting surface of the non-contact thermometer 1 to hold the case 2 in an inclined posture of the mirror 3.
A hanging portion 23 for connecting to the case 2 and suspending the case 2 from the wall,
Non-contact thermometer 1.

It is a perspective view of a non-contact thermometer. It is a side view which shows the stand. It is a side view which shows another example of a stand. It is a block diagram relating to the control of a non-contact thermometer. It is a top view of the non-contact thermometer. It is a flowchart of the body temperature measurement method by a control unit.

Hereinafter, embodiments will be described with reference to the drawings.
FIG. 1 is a perspective view of the non-contact thermometer 1.
The non-contact thermometer 1 includes a case 2, a mirror 3, an infrared sensor 41, a proximity sensor 42, a marking LED 5 (marking light), a speaker 6, a display 7, a control unit 8 (FIG. 4), an input unit 91 (FIG. 4), and a non-contact thermometer 1. A power supply 92 (FIG. 4) is provided.

Case 2 holds

elements

3, 5 to 8, 41, 42, 91, 92, and the shape can be appropriately designed. Case 2 houses elements 5-8, 41, 42, 91, 92. In the present embodiment, the case 2 has a rectangular parallelepiped shape, the longitudinal side is along the horizontal direction, and the surface 21 having the maximum area is installed in a posture facing the measurer. The stand 22 and the hanging portion 23 are connected to the case 2. The hanging portion 23 can adopt an appropriate configuration for hanging the case 2 on the wall. In the present embodiment, the hanging portion 23 extends upward from the central portion in the longitudinal direction on the upper surface of the case 2, has a through hole in the thickness direction (normal direction of the surface 21), and can be hooked on a hook on the wall. It has become.

The mirror 3 is for reflecting the face of the measurer. The mirror 3 is installed on the surface 21 by adhesion or the like in a posture in which the mirror 3 is closer to the lower side and the longitudinal side is along the horizontal direction.

The infrared sensor 41 is for measuring the body temperature of the measurer located in front of the mirror 3. The infrared sensor 41 receives infrared rays radiated from, for example, the forehead of a measurer located in front of the mirror 3, and outputs an output signal according to the amount of light received to the control unit 8. In the present embodiment, the infrared sensor 41 receives an optical system including a lens that collects infrared rays incident from the opening 411 of the surface 21 and infrared rays collected by the optical system by a plurality of thermocouples connected in series. It is provided with a thermopile that outputs an output signal according to the amount of infrared energy, a reference temperature sensor that measures a reference temperature that is the temperature of the thermopile itself, an AD conversion circuit for the output signals of both sensors, and the like. The body temperature of the measurer is calculated by the control unit 8 based on the output signals of the thermopile and the reference temperature sensor. In this embodiment, the opening 411 (light receiving position) is located above the surface 21 and in the center of the longitudinal direction.

The proximity sensor 42 is for detecting that, for example, the face of the measurer located in front of the mirror 3 approaches the mirror 3. As the proximity sensor 42, one having an appropriate configuration using static electricity, magnetism, ultrasonic waves, electromagnetic waves, and emitted light can be adopted. In the present embodiment, the proximity sensor 42 includes a light emitting element that emits light such as infrared rays through the opening 421 of the surface 21, a light receiving element that receives reflected light from the measurer, an AD conversion circuit for an output signal of the light receiving element, and the like. To be equipped with. The output signal of the proximity sensor 42 can be converted into the distance from the mirror 3 to, for example, the face of the measurer located in front of the mirror 3, and is used for control by the control unit 8. In the present embodiment, the opening 421 (light emitting position) is located above the surface 21 and on one side in the longitudinal direction (right side in FIG. 1). On the surface 21, "sensor" is printed in association with the opening 421.

The marking LED 5 (Light Emitting Diode) emits light in the visible region toward, for example, the forehead of the measurer located in front of the mirror 3 and irradiates the forehead with the mark 52 (FIG. 5) by the light. In the present embodiment, the marking LED 5 emits red light through the opening 51, but may emit appropriate visible light such as blue, green, and white. The opening 51 (light emitting position) is located above the surface 21 and at the center in the longitudinal direction, directly below the opening 411. "Marking LED" is printed on the surface 21 in association with the opening 51.

The speaker 6 outputs a sound related to body temperature measurement. In the present embodiment, the speaker 6 outputs sound from the side surface of the case 2 on the other side (left side in FIG. 1) in the longitudinal direction.

Display 7 displays information related to body temperature measurement and the like. In this embodiment, the display 7 is located above the surface 21 and on the other side in the longitudinal direction (left side in FIG. 1). The mirror 3 may be a half mirror film attached to the entire surface of the transparent plate constituting the surface 21. In this case, the display 7, the infrared sensor 41, the proximity sensor 42, and the marking LED 5 are arranged at appropriate positions directly under the transparent plate (mirror 3). The transparent plate and the half mirror film (mirror 3) are formed with openings for the

sensors

41, 42, and the marking LED 5.

FIG. 2 is a side view showing the stand 22.
An appropriate configuration can be adopted as long as the stand 22 comes into contact with the mounting surface of the non-contact thermometer 1 and holds the case 2 in an inclined posture of the mirror 3. For example, the stand 22 includes a mounting plate 221 and a support portion 222. The mounting plate 221 is connected to the lower end of the back surface of the case 2 with a hinge, and can be rotated toward the mounting surface side from the state of being housed in the back surface of the case 2. There is a groove (not shown) in the center of the mounting plate 221 in the longitudinal direction (vertical direction on the paper surface in FIG. 2), and the groove is a support portion when the mounting plate 221 and the support portion 222 are housed in the case 2. 222 is passed. Further, it is assumed that the back surface of the case 2 has a recess (not shown) for accommodating the stand 22.

The support portion 222 is connected to the center of the back surface of the case 2 in the height direction and the center in the longitudinal direction (vertical direction of the paper surface in FIG. 2) by a hinge, and rotates from the state of being housed in the back surface to the mounting plate 221 side. By being fastened to a stopper (not shown) of the mounting plate 221, the case 2 is held in an inclined posture of the mirror 3. As described above, the stand 22 is abbreviated as the first posture of FIG. 2 in which the case 2 is held in the posture in which the mirror 3 is tilted in contact with the mounting surface, and the wall when the non-contact thermometer 1 is suspended from the wall. It is preferable to be able to transition to a parallel second posture (in this embodiment, a state of being housed in the back surface of the case 2). As shown in FIG. 3, the stand 22A may have a U-shape that opens upward, and the upper ends of both arms may be rotatably supported on the side surface of the case 2. The stand 22A can hold the mirror 3 in an inclined posture by being in the first posture in contact with the mounting surface, and both arms are located on the side of the case 2 and the bottom is located below the case 2. The two postures do not get in the way when the case 2 is hung on the wall. In the aspect of FIG. 3, the output position of the speaker 6 may be a surface 21 or a top surface not covered by the stand 22A.

FIG. 4 is a block diagram relating to the control of the non-contact thermometer 1.
The input unit 91 includes buttons, keys, a touch panel, and the like installed on an appropriate surface of the case 2, and receives various settings and operation inputs such as power ON and OFF. The power supply 92 is a battery or the like, and supplies electric power to each element 5 to 7, 9, 41, 42, 91, 92. The control unit 8 includes a processor and a memory, and controls the entire non-contact thermometer 1.

FIG. 5 is a plan view of the non-contact thermometer 1. Hereinafter, the body temperature measurement method by the control unit 8 will be described with reference to the flowcharts of FIGS. 5 and 6.
It is assumed that the non-contact thermometer 1 is turned on while it is installed on the mounting surface or hung on the wall, and the control unit 8 is in the standby state. The control unit 8 drives the infrared sensor 41 and the proximity sensor 42, but does not drive the marking LED 5.

A measurer such as a child brings his face closer to the mirror 3 for temperature measurement. When the proximity sensor 42 detects that the measurer is closer to the mirror 3 than the set value (S1: YES), the control unit 8 drives the marking LED 5 to irradiate the measurer with the mark 52 (S2). The mark 52 has a round shape in the present embodiment, but may have an appropriate shape.

The control unit 8 outputs a warning sound for body temperature measurement, for example, "pi-pi-pi-pi" by the speaker 6 after a set second, for example, 3 seconds has passed since the measurer determines that the vehicle is approaching (S3). At the same time, the control unit 8 intermittently drives the marking LED 5 to blink the mark 52 (S4).

While the warning sound is sounding, the measurer adjusts the position of the face so that the mark 52 comes to the position of the forehead while looking at the mirror 3. In the infrared sensor 41, the direction of the optical axis of the optical system, the sensitivity of the thermopile, and the like are set so that the position of the forehead of the measurer who performs the standard measurement behavior is within the center of the measurement range and the measurement distance. .. The measurer may adjust the position of the face or body so that the mark 52 comes to the temple or neck. Even in this case, the infrared sensor 41 can appropriately measure the body temperature.

The control unit 8 calculates the body temperature based on the output signal of the infrared sensor 41 (S5), and outputs the notification sound of the body temperature measurement, for example, "passer" by the speaker 6 (S6). As a result, the measurer is notified that the body temperature measurement has been performed and completed, and may take his / her face away from the mirror 3. The time required for receiving infrared rays and calculating the body temperature related to the body temperature measurement by the infrared sensor 41 is as short as 0.5 seconds, for example.

The control unit 8 displays the calculated body temperature on the display 7 (S7). The control unit 8 drives the infrared sensor 41 and the proximity sensor 42, transitions to a standby state in which the marking LED 5 is not driven (S8), and performs the process of S1 for detecting the approach of the measurer.

(effect)
The measurer can measure the body temperature simply by bringing his / her face close to the mirror 3 of the non-contact thermometer 1, and can self-check the body temperature completely non-contact. Therefore, the non-contact thermometer 1 can suppress contact infection at the time of measuring body temperature. In addition, the non-contact thermometer 1 can measure the non-contact body temperature continuously and quickly for different measurers. From the above, by installing the non-contact thermometer 1 in hospitals, schools, companies, stores, stations, homes, etc., it is possible to further prevent the spread of infection with the new coronavirus and the like.

Since the non-contact thermometer 1 blinks the mark 52 by the marking LED 5 when the warning sound is output, it is easy for the measurer to recognize that the body temperature measurement is about to start. Therefore, the non-contact thermometer 1 can prompt the measurer to adjust the position of the face, and can improve the measurement accuracy.

Since the non-contact thermometer 1 includes a stand 22 and a hanging portion 23, it can be placed or hung, which is convenient.

1 ... Non-contact thermometer, 2 ... Case, 3 ... Mirror, 5 ... Marking LED (marking light), 6 ... Speaker, 7 ... Display, 8 ... Control unit, 22, 22A ... Stand, 23 ... Hanging part, 41 ... Infrared sensor, 42 ... proximity sensor, 52 ... mark.

Claims

With a mirror
A proximity sensor that detects that the measurer has approached the mirror, and
A marking light that illuminates a mark toward the measurer located in front of the mirror,
With speakers
An infrared sensor that receives infrared rays radiated from a measurer located in front of the mirror, and an infrared sensor.
With the display
When the proximity sensor detects that the measurer has approached the mirror, the marking light illuminates the measurer with a mark, and the speaker outputs a warning sound for body temperature measurement based on the output signal of the infrared sensor. A control unit that calculates the body temperature, outputs a notification sound for measuring the body temperature by the speaker, and displays the body temperature on the display.
A non-contact thermometer equipped with.
In the non-contact thermometer according to claim 1,
The control unit is a non-contact thermometer that blinks the mark with the marking light when the warning sound is output.
In the mask according to claim 1 or 2.
A case for holding the mirror, the proximity sensor, the marking light, the speaker, the infrared sensor, the speaker, and the control unit.
A stand that is connected to the case, abuts on the mounting surface of the non-contact thermometer, and holds the case in an inclined posture of the mirror.
A hanging part for connecting to the case and hanging the case on the wall,
A non-contact thermometer equipped with.