CN1329717C - Positioning type non-contact infrared body temperature detection instrument and body temperature detection method - Google Patents

Abstract

The invention discloses a positioning type non-contact infrared body temperature detection instrument and a body temperature detection method, wherein the positioning type non-contact infrared body temperature detection instrument is enabled to face a face of a detected person; the detected person is close to the right front of the detecting instrument; the transparent measurement positioning window of the instrument is parallel to the eyes of the measured person; the starting signal receiving device starts the positioning device to position after receiving a signal indicating that the head of the measured person reaches a specific position, and starts the infrared temperature measurement component to measure the forehead surface temperature of the measured person; the forehead surface temperature measured by the infrared temperature measurement component is converted into body temperature through the temperature conversion device. According to the invention, the infrared temperature measurement component is used for measuring temperature, so that the infrared temperature measurement component is prevented from contacting with a human body and the measurement speed is high; meanwhile, the head is started after reaching a specific position, so that the relative position of the forehead and the infrared temperature measurement component during measurement is ensured, and the measurement precision is ensured. Is suitable for quickly measuring the body temperature and detecting the abnormal body temperature.

Description

Positioning non-contact infrared body temperature detection instrument and body temperature detection method

Technical field:

The invention relates to a positioning type non-contact infrared body temperature detection instrument and a body temperature detection method.

Background technique:

At present, body temperature detectors are mainly mercury thermometers, electronic thermometers and infrared ear thermometers, all of which are detected by contact with the human body. This kind of contact detection is very unsanitary and unsafe, especially when the patient suffers from an infectious disease, it is easy to cause cross-infection. Although this problem can be overcome by adopting a disposable thermometer, it will cause a great waste of resources and increase the cost of the patient. There is also an insurmountable problem in the use of contact mercury thermometers, that is, the detection time is relatively long, usually more than 5 minutes. When it is necessary to conduct rapid body temperature detection of a large number of people, the existing detection methods and instruments are difficult to meet such requirements, and a safe, fast, non-contact and accurate detection method and instrument are needed.

Invention content:

The purpose of the present invention is to solve the above problems and provide a positioning non-contact infrared body temperature detection instrument and body temperature detection method, which are applied to rapid body temperature detection of a large number of people.

In order to achieve the above object, the present invention proposes a positioning type non-contact infrared body temperature detection instrument, which includes an infrared temperature measurement component, and is characterized in that: it also includes an induction starting component, a control circuit and a positioning device, and the control circuit includes a start signal The receiving device and the temperature conversion device are respectively connected with the induction starting part and the infrared temperature measurement component; the positioning device includes a transparent measurement positioning window, which is located under the measuring hole on the front surface of the casing, and the transparent measurement positioning window is connected to the The distance of the measuring hole is equal to the average distance between the forehead and the eyes of a person, and by making the transparent measurement positioning window parallel to the eyes of the subject, the forehead of the subject is kept in a set position relationship with the infrared temperature measurement component, and the The temperature converting device is used for converting the forehead surface temperature measured by the infrared temperature measuring component into body temperature.

In order to achieve the above object, the present invention also proposes a positioning type non-contact infrared body temperature detection method, which is characterized in that it includes the following steps: make the front of the positioning type non-contact infrared body temperature detection instrument face the face of the person under test; The detection instrument is directly in front; the transparent measurement positioning window of the instrument is parallel to the eyes of the subject, and the forehead of the subject reaches the position of the measuring hole whose distance from the transparent measurement positioning window is equal to the average distance between the forehead and the eyes of a person, so that The subject's forehead maintains a set position relationship with the infrared temperature measurement component; after the start signal receiving device receives the signal indicating that the subject's head has reached a specific position, the positioning device is activated for positioning, and the infrared temperature measurement component is started to measure the subject Forehead surface temperature; the temperature conversion device will

The forehead surface temperature measured by the infrared temperature measurement component is converted into body temperature. Due to the adoption of the above scheme, the present invention uses infrared temperature measurement components to measure temperature, avoids contact with the human body and has a fast measurement speed; at the same time, since the head is started after reaching a specific position, the relative position between the forehead and the infrared temperature measurement components during measurement is ensured. position to ensure measurement accuracy. It is suitable for quickly measuring body temperature and detecting abnormal body temperature.

Description of drawings:

Fig. 1 is a schematic front view of the structure of a positioning type non-contact infrared body temperature detection instrument.

Fig. 2 is a schematic top view of the structure of the positioning type non-contact infrared body temperature detection instrument.

Fig. 3 is a schematic diagram of the circuit structure of the positioning type non-contact infrared body temperature detection instrument.

Detailed ways:

The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

The positioning type non-contact infrared body temperature detection instrument proposed by the present invention includes an infrared temperature measurement component, an induction starting part, a control circuit and a positioning device, and the control circuit includes a start signal receiving device and a temperature conversion device, respectively connected with the induction starting part and The infrared temperature measurement component is connected; the positioning device includes a transparent measurement positioning window; and by making the transparent measurement positioning window parallel to the eyes of the subject, the forehead of the subject is kept in a set position relationship with the infrared temperature measurement component, and the The temperature converting device is used for converting the forehead surface temperature measured by the infrared temperature measuring component into body temperature.

As shown in Figures 1-3, in the following embodiments:

The inductive starting component is an infrared transmitter with an extension rod, an infrared receiver and a photoelectric switch control circuit 12, and the infrared transmitter and infrared receiver are connected to the control circuit through the photoelectric switch control circuit 12.

The fixed position of the infrared temperature measuring component 2 makes the temperature sensing area of the infrared temperature measuring component 2 aligned with the measuring hole 3 on the front surface of the casing 1 .

Described positioning device comprises transparent measurement positioning window 4, view map 14, fixed display lamp 13, and transparent measurement positioning window 4 is positioned at below the measuring hole 3 of casing 1 positive surface, and the distance of transparent measurement positioning window 4 and measuring hole 3 is equal to The average distance between people's forehead and the eyes; in the casing 1, the inner surface fixed view map 14 is relatively juxtaposed with the transparent measurement positioning window 4 at the same height, and the fixed display lamp 13 is fixed on the inner surface of the casing 1.

The detector is also provided with a buzzer 5, a warning lamp 6, a keyboard and a display, and the buzzer 5 and the warning lamp 6 are all connected with the control device for alarming when the temperature exceeds a preset threshold; the keyboard and The display is also connected to the control unit for setting the alarm thresholds.

The output end of the infrared temperature measurement assembly 2 is connected with the input end of the control circuit 11 made up of the microprocessor system; the infrared transmitter 7 and the infrared receiver 8 are respectively connected with the ports of the photoelectric switch control circuit 12, and the photoelectric switch control circuit 12 The port of is connected with the port of control circuit 11.

The input end of buzzer 6 links with the output end of control circuit 11, the input end of warning light 6 links with the output end of control circuit 11, the port of keyboard 9 links with the port of control circuit 11, the port of display 10 It is connected with the port of the control circuit 11.

Referring to FIG. 1 , the infrared temperature measurement component 2 is fixed inside the casing 1 , and the fixed position of the infrared temperature measurement component 2 aligns the temperature sensing area of the infrared temperature measurement component 2 with the measuring hole 3 on the front surface of the casing 1 . The transparent measurement positioning window 4 is located below the measuring hole 3 on the front surface of the casing 1, and the distance between the transparent measurement positioning window 4 and the measuring hole 3 is equal to the average distance between the forehead and the eyes of a person. In the casing 1 , a view map 14 is fixed on the inner surface at the same height as the transparent measurement positioning window 4 , and a display lamp 13 is fixed on the inner surface of the casing 1 . A buzzer 5 and an alarm lamp 6 are fixed on the outer surface of the casing 1 .

Referring to Fig. 2, an infrared emitter 7 and an infrared receiver 8 which are used as photoelectric switches and have extension rods are respectively fixed on the two sides of the casing.

With reference to Fig. 3, the output end of infrared temperature measurement assembly 2 links with the input end of the control circuit 11 that is made up of microprocessor system, the input end of buzzer 6 links with the output end of control circuit 11, and the alarm light 6 The input end is connected with the output end of the control circuit 11 , the port of the keyboard 9 is connected with the port of the control circuit 11 , and the port of the display 10 is connected with the port of the control circuit 11 . The infrared emitting tube 7 and the infrared receiving tube 8 are respectively connected to the ports of the photoelectric switch control circuit 12 , and the ports of the photoelectric switch control circuit 12 are connected to the ports of the control circuit 11 .

The method of using the above-mentioned instrument for positioning non-contact infrared body temperature detection includes the following steps: making the front of the positioning type non-contact infrared body temperature detection instrument face the face of the subject; making the subject approach the front of the detection instrument; making the instrument transparent The measurement positioning window is parallel to the eyes of the subject; after the signal receiving device receives the signal indicating that the subject's head has reached a specific position, the positioning device is activated for positioning, and the infrared temperature measurement component is started to measure the surface temperature of the subject's forehead; The converting device converts the forehead surface temperature measured by the infrared temperature measuring component into body temperature.

In special needs, it can also be judged according to the set alarm threshold. If the threshold is exceeded, the buzzer and alarm light installed inside or on the outer shell of the positioning non-contact infrared forehead temperature rapid detection instrument will send out sound and light alarms.

For this reason, the high temperature and low temperature alarm thresholds of the positioning type non-contact infrared body temperature detection instrument can be set earlier through the keyboard and display.

There are many kinds of locating process of the locating device. In this embodiment, combined with the special situation of forehead temperature measurement, the following method is used for locating: the display lamp is lit, so that the person under test can clearly see the fixed view on the surface of the inner casing. .

To ensure the best measurement results, the following steps are required: the fixed position of the infrared temperature measurement component makes the temperature sensing area of the infrared temperature measurement component aligned with the measuring hole on the front surface of the casing; the transparent measurement positioning window is located on the front surface of the casing Below the measurement hole, the distance between the transparent measurement positioning window and the measurement hole is equal to the average distance between the forehead and the eyes of a person; the fixed view on the inner surface of the casing is opposite to the transparent measurement positioning window at the same height, and the inner plane of the casing is fixed Indicator.

The advantages of the present invention are: 1. The provided positioning type non-contact infrared body temperature rapid detection instrument does not touch the human body, and can quickly measure the forehead temperature at a distance of about 100mm from the human head, and the response time is less than 1 second. 2. The positioning type non-contact infrared body temperature detection instrument provided by the present invention can set different alarm temperatures according to different measurement sites and measurement environments. When the buzzer sounds, it means that the person under test is having a fever.

Using the positioning type non-contact infrared body temperature detector provided by the present invention, 15 cases were found to be alarmed by the detection results of 800 teachers and students in a certain school, and 3 of them were determined to be patients with fever. The detection rate of patients with fever was 100%, and the false detection rate was 100%. Just 1.5%.

Claims (11)

1. A positioning-type non-contact infrared body temperature detection instrument, including an infrared temperature measurement component, characterized in that: it also includes an induction start-up component, a control circuit and a positioning device, and the control circuit includes a start-up signal receiving device and a temperature conversion device , are respectively connected with the induction starting part and the infrared temperature measurement assembly (2); the positioning device includes a transparent measurement positioning window (4), and the transparent measurement positioning window (4) is located in the measuring hole ( 3) Below, the distance between the transparent measurement positioning window (4) and the measuring hole (3) is equal to the average distance between the forehead and the eyes of a person, and by making the transparent measurement positioning window parallel to the eyes of the subject, the forehead of the subject is It maintains a set positional relationship with the infrared temperature measurement component, and the temperature conversion device is used to convert the forehead surface temperature measured by the infrared temperature measurement component into body temperature. 2. The positioning type non-contact infrared body temperature detection instrument according to claim 1, characterized in that: the induction start-up part is an infrared emitter with an extension rod, an infrared receiver and a photoelectric switch control circuit (12), the The infrared emitter and the infrared receiver are connected with the control circuit through the photoelectric switch control circuit (12). 3. The positioning type non-contact infrared body temperature detection instrument according to claim 1, characterized in that: the fixed position of the infrared temperature measurement component (2) makes the temperature sensing area of the infrared temperature measurement component (2) and the casing (1) positive The measuring holes (3) on the surface are aligned and aligned. 4. The positioning type non-contact infrared body temperature detection instrument according to claim 1, characterized in that: the positioning device further includes a view map (14), a fixed display light (13), and the transparent measurement positioning window (4) is located Below the measuring hole (3) on the front surface of the casing (1), the distance between the transparent measurement positioning window (4) and the measuring hole (3) is equal to the average distance between the forehead of a person and the eyes; Window (4) is relatively juxtaposed with the fixed view map (14) of the same height, and display lamp (13) is fixed on the inner plane of the casing (1). 5. The positioning type non-contact infrared body temperature detection instrument according to claim 1, characterized in that: it also includes a buzzer (5), a warning light (6), a keyboard and a display, and the buzzer (5) and The alarm lamps (6) are all connected with the control device, and are used for alarming when the temperature exceeds a set threshold; the keyboard and the display are also connected with the control device, and are used for setting the alarm threshold. 6. The positioning non-contact infrared body temperature detection instrument according to claim 2, characterized in that: the output end of the infrared temperature measurement component (2) is connected to the input end of the control circuit (11) composed of a microprocessor system ; The infrared transmitter (7) and the infrared receiver (8) are respectively connected to the ports of the photoelectric switch control circuit (12), and the ports of the photoelectric switch control circuit (12) are connected to the ports of the control circuit (11). 7. The positioning non-contact infrared body temperature detection instrument according to claim 5, characterized in that: the output end of the infrared temperature measurement component (2) is connected to the input end of the control circuit (11) composed of a microprocessor system The input end of the buzzer (6) is connected with the output end of the control circuit (11), the input end of the warning lamp (6) is connected with the output end of the control circuit (11), and the port of the keyboard (9) is connected with the control circuit (11). The ports of the circuit (11) are connected, and the ports of the display (10) are connected with the ports of the control circuit (11). 8. A detection method for measuring body temperature using the positioning type non-contact infrared body temperature detection instrument according to claim 1, characterized in that it comprises the following steps: Make the front of the positioning non-contact infrared body temperature detection instrument face the face of the person under test; Make the subject to be tested close to the front of the detection instrument; Make the transparent measurement positioning window (4) of the instrument parallel to the eyes of the subject, and the forehead of the subject reaches the position of the measuring hole (3) whose distance from the transparent measurement positioning window (4) is equal to the average distance between the forehead and the eyes of a person , so that the subject's forehead maintains a set positional relationship with the infrared temperature measurement component; Start the signal receiving device to start the positioning device for positioning after receiving the signal indicating that the head of the subject has reached a specific position, and start the infrared temperature measurement component to measure the surface temperature of the forehead of the subject; The forehead surface temperature measured by the infrared temperature measuring component is converted into body temperature through the temperature conversion device. 9. The detection method for measuring body temperature according to claim 8, further comprising the step of: setting the high temperature and low temperature alarm thresholds of the positioning type non-contact infrared body temperature detection instrument through the keyboard and display. 10. The detection method for measuring body temperature according to claim 8, characterized in that the positioning process of the positioning device is: when the transparent measurement positioning window (4) is parallel to the eyes of the tested person, the display lamp (13) lights up, and the measured The person sees the fixed view map (14). 11. The detection method for measuring body temperature as claimed in claim 9, further comprising the following steps: judging according to the set alarm threshold, if the threshold is exceeded, the device installed inside or on the shell of the positioning type non-contact infrared body temperature detection instrument Buzzer and warning light give out sound and light alarm.

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