CN215064897U - Portable high-precision infrared body temperature measuring instrument - Google Patents
Portable high-precision infrared body temperature measuring instrument Download PDFInfo
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- CN215064897U CN215064897U CN202120935106.6U CN202120935106U CN215064897U CN 215064897 U CN215064897 U CN 215064897U CN 202120935106 U CN202120935106 U CN 202120935106U CN 215064897 U CN215064897 U CN 215064897U
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Abstract
The invention discloses a portable high-precision infrared body temperature measuring instrument which is applied to indoor and outdoor rapid detection of the body surface temperature of exposed skin at wrists and forehead and comprises a shell and hardware, wherein a liquid crystal display screen is installed on an upper shell, and a power switch button is arranged on the right side of a lower shell. The hardware part comprises a liquid crystal screen, a single chip microcomputer circuit board, an infrared temperature measurement sensor and a power supply battery, wherein the infrared temperature measurement sensor is connected to the single chip microcomputer circuit board through an IIC interface and is communicated with an onboard microcontroller, and the liquid crystal screen is connected to the single chip microcomputer circuit board through an SPI interface or a serial port and is communicated with the onboard microcontroller. The invention has the beneficial effects of providing a portable small infrared body temperature detecting instrument with lower cost and high detection precision. The invention has the advantages of simple structure, small volume, low power consumption, independent battery power supply, high detection precision, portability and mobility.
Description
Technical Field
The invention relates to a high-precision infrared body temperature detecting instrument, in particular to a small instrument which is applied to indoor and outdoor rapid detection of the surface temperature of exposed skin at wrists and forehead and is convenient to move and carry.
Background
There are two types of thermometers currently on the market: contact temperature measurement and non-contact temperature measurement. The most common contact thermometer is the mercury glass thermometer. The temperature measurement of the mercury glass thermometer needs to be in contact with a human body, and the contact temperature measurement can only measure the temperature of a measured object and a temperature measuring head after the temperature of the measured object and the temperature measuring head reach thermal equilibrium, so the response time is long. The biggest disadvantage is that: firstly, the glass body is easy to crack under the collision, and no matter the glass or mercury has safety influence on family members, especially children; secondly, the measurement needs to be carried out in the armpit or the oral cavity, if a plurality of people are involved in the measurement, the sanitary condition is worried, and the temperature measurement time is longer. China has announced that mercury thermometers are not produced again from 2026 years ago. The current global new coronavirus epidemic undoubtedly has special requirements for non-contact measurement and rapid detection of the clinical thermometer. The most common non-contact temperature measurement is temperature measurement by using an infrared radiation principle. The magnitude and wavelength distribution of infrared radiation energy of an object are closely related to the surface temperature of the object. Therefore, the surface temperature of the object can be accurately determined by measuring the infrared radiation of the object, and the infrared temperature measurement utilizes the principle to measure the temperature. The infrared temperature measurement is to determine the temperature of an object according to the infrared radiation energy of the object to be measured, and has the advantages of no contact with the object to be measured, cleanness, sanitation, high response speed, good stability and the like. Admittedly, many infrared body temperature measuring instruments are sold in the market at present, but most infrared body temperature measuring instruments use domestic infrared temperature measuring sensors, the comparison error between the detected data and the actual body temperature data is overlarge, the detection error of some temperature measuring instruments in the market at present reaches +/-2 ℃, and the significance of temperature measurement is lost substantially. Moreover, the domestic infrared thermometers often do not contain an effective environment temperature compensation algorithm, and when the outdoor temperature and the body temperature are greatly different in winter, the measured data error is larger when the outdoor temperature is greatly different.
Disclosure of Invention
The invention aims to solve the technical problem of providing the high-precision infrared body temperature measuring instrument which has the advantages of low cost, high detection precision and convenient movement and carrying.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a portable high accuracy infrared temperature measuring apparatu, is applied to indoor outer short-term test wrist, the exposed skin body surface temperature of forehead department, its characterized in that: the liquid crystal display device comprises a shell and hardware, wherein the shell is provided with a liquid crystal display screen on an upper shell, and a power switch button is arranged on the right side of a lower shell; the hardware comprises a liquid crystal screen, a single chip microcomputer circuit board, an infrared temperature measuring sensor, a power supply battery and a power switch button; the infrared temperature measurement sensor is connected to the single chip microcomputer circuit board through the IIC interface and communicates with the onboard microcontroller, and the liquid crystal screen is connected to the single chip microcomputer circuit board through the SPI interface or the serial port and communicates with the onboard microcontroller.
A portable high-precision infrared body temperature measuring instrument is characterized in that an infrared temperature measuring sensor (such as but not limited to MLX90614 series sensors) has a temperature measuring range of-40 to +125 ℃, a temperature resolution rate of 0.02 ℃ and a high-precision error of +/-0.5 ℃ (the error in the human body temperature measuring range of the sensor in the medical version can reach +/-0.1 ℃), and the detection precision is guaranteed.
The utility model provides a portable high accuracy infrared thermometer, singlechip circuit board have microcontroller, possess IIC interface connection sensor, possess SPI interface and serial ports joinable LCD screen. The single chip circuit board is provided with a battery power supply interface which is connected with a battery with internal independent power supply, and the single chip circuit board can be conveniently replaced so as to be convenient to move and carry.
The software of the portable high-precision infrared body temperature detector is stored and solidified in a microcontroller of a single chip microcomputer circuit board, can send instructions and read data transmitted by the infrared body temperature sensor from an IIC interface, obtains body surface temperature after data processing, and displays the body surface temperature data on a liquid crystal screen through an SPI interface or serial port communication.
The utility model provides an infrared body temperature measuring apparatu of portable high accuracy, the shell adopts ya keli or engineering plastics to make the box pattern that upper and lower casing constitutes, and single chip microcomputer circuit board, battery are laid inside the casing down, and the sensor is installed in the inside upper end of casing down to the temperature probe exposes from the upper end round hole, so that detect the temperature, and the right side sets up power supply button switch and is connected with single chip microcomputer circuit board power supply part, and the opening of the control measuring apparatu of being convenient for is closed.
In summary, the invention has the advantages that:
the utility model provides an infrared body temperature measuring apparatu of portable high accuracy, be applied to indoor outer short-term test wrist, forehead department exposes skin body surface temperature, professional infrared temperature sensor has guaranteed the high accuracy of detected data, the program software of storage sends data instruction to infrared temperature sensor through the IIC interface in the microcontroller of singlechip circuit board, the sensor begins to work and sends singlechip microcontroller through the IIC interface with the temperature value that obtains that detects, the program software of storage passes through data processing in the microcontroller, the temperature value that detects the body surface through SPI interface or serial ports communication shows on the LCD screen. The instrument has the advantages of simple structure, small volume, low power consumption, independent battery power supply, high detection precision, portability and mobility.
Additional advantages, objects, and features of the invention will be set forth in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the system of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In the figure: 2-1, an upper shell; 2-2 liquid crystal screen; 2-3 single chip circuit board; 2-4 infrared temperature measuring sensors; 2-5 power switch buttons; 2-6 lower shell; 2-7 power supply batteries.
Detailed Description
The invention discloses a portable high-precision infrared body temperature measuring instrument, which is applied to indoor and outdoor rapid detection of the body surface temperature of exposed skin at wrists and forehead, and comprises the following steps:
firstly, a power supply battery (2-7) is used for directly supplying power to a single chip microcomputer circuit board (2-3), an infrared temperature measuring sensor (2-4) and a liquid crystal screen (2-2), and when the power of the power supply battery (2-7) is insufficient, a new power supply battery can be replaced; secondly, a power switch button (2-5) on the right side of the shell is pressed down, the internal battery is switched on to supply power, program software stored in a microcontroller of a single chip microcomputer circuit board (2-2) sends a data instruction to an infrared temperature measuring sensor (2-4) through an IIC interface, the sensor starts to work and sends a detected temperature value to the single chip microcomputer microcontroller through the IIC interface, the program software stored in the microcontroller is subjected to data processing, and a temperature value detected by the body surface is displayed on a liquid crystal screen through an SPI interface or serial port communication; thirdly, program software stored in the microcontroller comprises an ambient temperature compensation algorithm of temperature measurement data of the infrared temperature measurement sensors (2-4), the algorithm can compensate body temperature detection data values under the condition of outdoor temperature change, and errors of the body temperature detection data are controlled within a high precision range.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is apparent that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (4)
1. The utility model provides a portable high accuracy infrared temperature measuring apparatu, is applied to indoor outer short-term test wrist, the exposed skin body surface temperature of forehead department, its characterized in that: the liquid crystal display device comprises a shell and hardware, wherein the shell is provided with a liquid crystal display screen on an upper shell, and a power switch button is arranged on the right side of a lower shell; the hardware part comprises a liquid crystal screen, a single chip microcomputer circuit board, an infrared temperature measuring sensor, a power supply battery and a power switch button, wherein the infrared temperature measuring sensor is connected to the single chip microcomputer circuit board through an IIC interface and is communicated with an onboard microcontroller, and the liquid crystal screen is connected to the single chip microcomputer circuit board through an SPI interface or a serial port and is communicated with the onboard microcontroller.
2. The portable high-precision infrared thermometer according to claim 1, characterized in that: the infrared temperature measuring sensor has a temperature measuring range of-40 to +125 ℃, and the temperature resolution rate can reach high-precision errors of 0.02 ℃ and +/-0.5 ℃, so that the detection precision is ensured.
3. The portable high-precision infrared thermometer according to claim 1, characterized in that: singlechip circuit board has microcontroller, possess IIC interface connection sensor, possess SPI interface and serial ports joinable LCD screen, possess the battery powered interface on the singlechip circuit board, is connected with the battery of inside independent power supply, can conveniently change to in remove and carry.
4. The portable high-precision infrared thermometer according to claim 1, characterized in that: the shell adopts ya keli or engineering plastics to make the box pattern that upper and lower casing constitutes, and single chip microcomputer circuit board, battery are laid under inside the casing, and the sensor is installed in the inside upper end of casing down to the temperature probe exposes from the upper end round hole, so that detect the temperature, and the right flank sets up power supply button switch and is connected with single chip microcomputer circuit board power supply part, is convenient for control the opening of measuring apparatu and closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935106.6U CN215064897U (en) | 2021-05-04 | 2021-05-04 | Portable high-precision infrared body temperature measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120935106.6U CN215064897U (en) | 2021-05-04 | 2021-05-04 | Portable high-precision infrared body temperature measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN215064897U true CN215064897U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120935106.6U Active CN215064897U (en) | 2021-05-04 | 2021-05-04 | Portable high-precision infrared body temperature measuring instrument |
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| CN (1) | CN215064897U (en) |
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2021
- 2021-05-04 CN CN202120935106.6U patent/CN215064897U/en active Active
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