CN103735255B - A kind of non-contact infrared body temperature meter - Google Patents
A kind of non-contact infrared body temperature meter Download PDFInfo
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- CN103735255B CN103735255B CN201410006098.1A CN201410006098A CN103735255B CN 103735255 B CN103735255 B CN 103735255B CN 201410006098 A CN201410006098 A CN 201410006098A CN 103735255 B CN103735255 B CN 103735255B
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Abstract
<b> the present invention relates to a kind of non-contact infrared body temperature meter, and it comprises dc-dc, electric power management circuit, temperature sense circuit, analog-digital converter, central processing unit, clock circuit interface, crystal oscillator, analog signal amplifier, amplifying circuit interface, FLASH memory, IIC communication interface, keyboard interface, LCD drive circuit, backlight control circuit, buzzer drive circuit, buzzer module, keyboard, backlight and LCD display; Analog signal amplifier, for receiving the analog electrical signal that a photodetector exports; Central processing unit, for described analog electrical signal being converted to corresponding temperature value, and according to the time that described temperature value produces, carries out association store in FLASH memory to temperature value and time.Temperature value and time can be carried out association store by the present invention, and user can know the Temperature changing in oneself a period of time, is convenient to the health understanding oneself.</b>
Description
Technical field
The present invention relates to non-contact infrared body temperature meter.
Background technology
Body temperature is the basic feature of human life activity, is also to observe one of whether normal important indicator of function of human body.In current daily life, people use the widest mercury clinical thermometer, and it is according to the character of expanding with heat and contract with cold with gradient of temperature such as hydrargyrum, judges temperature value by reading scale value.But the glass loading hydrargyrum is easily broken, has potential safety hazard.In view of this, occurred a kind of non-contact infrared body temperature meter in the market, it obtains the photosignal of human body by photodetector, then changes out temperature value to processor.But this non-contact infrared body temperature meter can not store the data measured, user cannot to observe in a period of time self Temperature changing.
Summary of the invention
The object of the invention is to propose a kind of non-contact infrared body temperature meter, it can solve the problem that temperature data stores.
In order to achieve the above object, the technical solution adopted in the present invention is as follows:
A kind of non-contact infrared body temperature meter, it comprises dc-dc, electric power management circuit, temperature sense circuit, analog-digital converter, central processing unit, clock circuit interface, crystal oscillator, analog signal amplifier, amplifying circuit interface, FLASH memory, IIC communication interface, keyboard interface, LCD drive circuit, backlight control circuit, buzzer drive circuit, buzzer module, keyboard, backlight and LCD display; Electric power management circuit, analog-digital converter, clock circuit interface, amplifying circuit interface, IIC communication interface, keyboard interface, backlight control circuit and buzzer drive circuit are all electrically connected with central processing unit; Dc-dc and electric power management circuit are electrically connected, and the input of temperature sense circuit is connected with dc-dc, and the outfan of temperature sense circuit is connected with analog-digital converter; Crystal oscillator is connected with clock circuit interface; Analog signal amplifier is connected with amplifying circuit interface; FLASH memory is connected with IIC communication interface; Keyboard interface is connected with keyboard; LCD drive circuit is connected with LCD display; Backlight control circuit is connected with backlight; Buzzer drive circuit and buzzer model calling; Analog signal amplifier, for receiving the analog electrical signal that a photodetector exports; Central processing unit, for described analog electrical signal being converted to corresponding temperature value, and according to the time that described temperature value produces, carries out association store in FLASH memory to temperature value and time.
Preferably, described photodetector is infrared photoelectric detector.
Preferably, described temperature sense circuit comprises a NTC resistance and a resistance R3, and one end of NTC resistance is connected with the outfan of dc-dc, and the other end of NTC resistance is connected with analog-digital converter, one end ground connection of resistance R3, the other end of resistance R3 is connected with analog-digital converter.
Preferably, described buzzer module comprises a buzzer and a diode D4, the positive terminal of buzzer is connected with the positive pole of diode D4, the negative terminals of buzzer is connected with the negative pole of diode D4, the negative pole of diode D4 is connected with a DC source, and the positive pole of diode D4 is connected with buzzer drive circuit.
The present invention has following beneficial effect:
Temperature value and time can be carried out association store, user can know the Temperature changing in oneself a period of time, is convenient to the health understanding oneself.
Accompanying drawing explanation
Fig. 1 is the structural representation of the non-contact infrared body temperature meter of present pre-ferred embodiments.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further.
As shown in Figure 1, a kind of non-contact infrared body temperature meter, it comprises dc-dc, electric power management circuit, temperature sense circuit, analog-digital converter, central processing unit, clock circuit interface, crystal oscillator, analog signal amplifier, amplifying circuit interface, FLASH memory, IIC communication interface, keyboard interface, LCD drive circuit, backlight control circuit, buzzer drive circuit, buzzer module, keyboard, backlight and LCD display; Electric power management circuit, analog-digital converter, clock circuit interface, amplifying circuit interface, IIC communication interface, keyboard interface, backlight control circuit and buzzer drive circuit are all electrically connected with central processing unit; Dc-dc and electric power management circuit are electrically connected, and the input of temperature sense circuit is connected with dc-dc, and the outfan of temperature sense circuit is connected with analog-digital converter; Crystal oscillator is connected with clock circuit interface; Analog signal amplifier is connected with amplifying circuit interface; FLASH memory is connected with IIC communication interface; Keyboard interface is connected with keyboard; LCD drive circuit is connected with LCD display; Backlight control circuit is connected with backlight; Buzzer drive circuit and buzzer model calling; Analog signal amplifier, for receiving the analog electrical signal that a photodetector exports; Central processing unit, for described analog electrical signal being converted to corresponding temperature value, and according to the time that described temperature value produces, carries out association store in FLASH memory to temperature value and time.
The photodetector of the present embodiment is infrared photoelectric detector.
The temperature sense circuit of the present embodiment comprises a NTC resistance and a resistance R3, one end of NTC resistance is connected with the outfan of dc-dc, the other end of NTC resistance is connected with analog-digital converter, and one end ground connection of resistance R3, the other end of resistance R3 is connected with analog-digital converter.
The buzzer module of the present embodiment comprises a buzzer and a diode D4, the positive terminal of buzzer is connected with the positive pole of diode D4, the negative terminals of buzzer is connected with the negative pole of diode D4, the negative pole of diode D4 is connected with a DC source, and the positive pole of diode D4 is connected with buzzer drive circuit.
During use, photodetector is aimed at the measuring point of human body, press the SW0 key of lower keyboard, by the opto-electronic conversion of photodetector, obtain the signal of telecommunication, then central processing unit just can carry out computing according to the signal of telecommunication, obtains corresponding temperature value.If this temperature value is higher than preset value, then drive buzzer work.In addition, by FLASH memory, can associate with corresponding generation time temperature value, by pressing the SW1 key of lower keyboard, history temperature data can be seen on LCD display, facilitating user to understand the body temperature situation of self, such as, adequate preparation is done to become pregnant etc.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (1)
1. a non-contact infrared body temperature meter, it is characterized in that, comprise dc-dc, electric power management circuit, temperature sense circuit, analog-digital converter, central processing unit, clock circuit interface, crystal oscillator, analog signal amplifier, amplifying circuit interface, FLASH memory, IIC communication interface, keyboard interface, LCD drive circuit, backlight control circuit, buzzer drive circuit, buzzer module, keyboard, backlight and LCD display; Electric power management circuit, analog-digital converter, clock circuit interface, amplifying circuit interface, IIC communication interface, keyboard interface, backlight control circuit and buzzer drive circuit are all electrically connected with central processing unit; Dc-dc and electric power management circuit are electrically connected, and the input of temperature sense circuit is connected with dc-dc, and the outfan of temperature sense circuit is connected with analog-digital converter; Crystal oscillator is connected with clock circuit interface; Analog signal amplifier is connected with amplifying circuit interface; FLASH memory is connected with IIC communication interface; Keyboard interface is connected with keyboard; LCD drive circuit is connected with LCD display; Backlight control circuit is connected with backlight; Buzzer drive circuit and buzzer model calling; Analog signal amplifier, for receiving the analog electrical signal that a photodetector exports; Central processing unit, for described analog electrical signal being converted to corresponding temperature value, and according to the time that described temperature value produces, carries out association store in FLASH memory to temperature value and time; Described photodetector is infrared photoelectric detector; Described temperature sense circuit comprises a NTC resistance and a resistance R3, one end of NTC resistance is connected with the outfan of dc-dc, the other end of NTC resistance is connected with analog-digital converter, one end ground connection of resistance R3, and the other end of resistance R3 is connected with analog-digital converter; Described buzzer module comprises a buzzer and a diode D4, the positive terminal of buzzer is connected with the positive pole of diode D4, the negative terminals of buzzer is connected with the negative pole of diode D4, the negative pole of diode D4 is connected with a DC source, and the positive pole of diode D4 is connected with buzzer drive circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410006098.1A CN103735255B (en) | 2014-01-06 | 2014-01-06 | A kind of non-contact infrared body temperature meter |
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| CN201410006098.1A CN103735255B (en) | 2014-01-06 | 2014-01-06 | A kind of non-contact infrared body temperature meter |
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| CN103735255A CN103735255A (en) | 2014-04-23 |
| CN103735255B true CN103735255B (en) | 2016-01-06 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000560B (en) * | 2014-05-26 | 2017-03-01 | 广东工业大学 | A kind of control circuit of human body quick temperature measurement electronic clinical thermometer |
| CN104460363B (en) * | 2014-10-13 | 2017-06-06 | 天津三星电子有限公司 | The automatic shutdown method of display device and the display device using the method |
| CN112113665A (en) * | 2020-08-13 | 2020-12-22 | Oppo（重庆）智能科技有限公司 | Temperature measuring method, device, storage medium and terminal |
| RU205774U1 (en) * | 2020-12-24 | 2021-08-11 | Общество с ограниченной ответственностью «МедПоинт24-Лаб» | INFRARED NON-CONTACT THERMOMETER |
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| JPH10290790A (en) * | 1997-04-18 | 1998-11-04 | Matsushita Electric Ind Co Ltd | Radiation thermometer |
| CN201237530Y (en) * | 2008-08-11 | 2009-05-13 | 北方工业大学 | Temperature measuring gun |
| CN201352153Y (en) * | 2008-09-03 | 2009-11-25 | 袁剑敏 | Non-contact infrared thermometer for human body and object surface |
| CN202027570U (en) * | 2011-03-30 | 2011-11-09 | 滨州学院 | Non-contact remote automatic body temperature measuring instrument |
| CN203089095U (en) * | 2013-03-05 | 2013-07-31 | 江苏奥普莱医疗用品有限公司 | Non-contact type clinical thermometer |
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- 2014-01-06 CN CN201410006098.1A patent/CN103735255B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1168090A (en) * | 1995-11-13 | 1997-12-17 | 西铁城钟表股份有限公司 | Clinical radiation thermometer |
| JPH10290790A (en) * | 1997-04-18 | 1998-11-04 | Matsushita Electric Ind Co Ltd | Radiation thermometer |
| CN201237530Y (en) * | 2008-08-11 | 2009-05-13 | 北方工业大学 | Temperature measuring gun |
| CN201352153Y (en) * | 2008-09-03 | 2009-11-25 | 袁剑敏 | Non-contact infrared thermometer for human body and object surface |
| CN202027570U (en) * | 2011-03-30 | 2011-11-09 | 滨州学院 | Non-contact remote automatic body temperature measuring instrument |
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