CN103735255A - Non-contact infrared thermometer - Google Patents
Non-contact infrared thermometer Download PDFInfo
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Abstract
本发明涉及一种非接触式红外体温计，其包括DC-DC转换器、电源管理电路、温度感应电路、模数转换器、中央处理器、时钟电路接口、晶体振荡器、模拟信号放大器、放大电路接口、FLASH存储器、IIC通讯接口、键盘接口、LCD驱动电路、背光控制电路、蜂鸣器驱动电路、蜂鸣器模块、键盘、背光灯和LCD显示屏；模拟信号放大器，用于接收一光电探测器输出的模拟电信号；中央处理器，用于将所述模拟电信号转换为对应的温度值，并根据所述温度值所产生的时间，于FLASH存储器对温度值及时间进行关联存储。本发明能够将温度值和时间进行关联存储，用户可以知道自己一段时间内的体温变化，便于了解自己的身体状况。
The invention relates to a non-contact infrared thermometer, which includes a DC-DC converter, a power management circuit, a temperature sensing circuit, an analog-to-digital converter, a central processing unit, a clock circuit interface, a crystal oscillator, an analog signal amplifier, and an amplifier 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 a photoelectric detection The analog electrical signal output by the device; the central processing unit is used to convert the analog electrical signal into a corresponding temperature value, and store the temperature value and time in the FLASH memory according to the time generated by the temperature value. The invention can store the temperature value and time in association, and the user can know the change of his body temperature within a period of time, so as to facilitate understanding of his physical condition.
Description
the
技术领域 technical field
本发明涉及非接触式红外体温计。 The invention relates to a non-contact infrared thermometer.
the
背景技术 Background technique
体温是人体生命活动的基本特征，也是观察人体机能是否正常的重要指标之一。在目前的日常生活中，人们使用最广的水银体温计，其是根据水银等随温度升降的热胀冷缩的性质，通过读取刻度值来判断温度值。然而，装载水银的玻璃容易破碎，有安全隐患。有鉴于此，目前市场上出现了一种非接触式红外体温计，其能通过光电探测器获取人体的光电信号，然后给处理器转换出温度值。然而，该非接触式红外体温计并不能对测量的数据进行存储，用户无法观察一段时间内自身的体温变化。 Body temperature is the basic characteristic of human life activities, and it is also one of the important indicators to observe whether the human body functions normally. In current daily life, people use the most widely used mercury thermometer, which judges the temperature value by reading the scale value according to the properties of mercury, etc., that expand with heat and contract with temperature. However, the glass loaded with mercury is easy to break and poses a safety hazard. In view of this, a non-contact infrared thermometer has appeared on the market, which can obtain the photoelectric signal of the human body through the photodetector, and then convert the temperature value to the processor. However, the non-contact infrared thermometer cannot store the measured data, and the user cannot observe changes in his own body temperature over a period of time.
the
发明内容 Contents of the invention
本发明的目的在于提出一种非接触式红外体温计，其能解决体温数据存储的问题。 The purpose of the present invention is to propose a non-contact infrared thermometer, which can solve the problem of body temperature data storage.
为了达到上述目的，本发明所采用的技术方案如下： In order to achieve the above object, the technical scheme adopted in the present invention is as follows:
一种非接触式红外体温计，其包括DC-DC转换器、电源管理电路、温度感应电路、模数转换器、中央处理器、时钟电路接口、晶体振荡器、模拟信号放大器、放大电路接口、FLASH存储器、IIC通讯接口、键盘接口、LCD驱动电路、背光控制电路、蜂鸣器驱动电路、蜂鸣器模块、键盘、背光灯和LCD显示屏；电源管理电路、模数转换器、时钟电路接口、放大电路接口、IIC通讯接口、键盘接口、背光控制电路和蜂鸣器驱动电路均与中央处理器电性连接；DC-DC转换器与电源管理电路电性连接，温度感应电路的输入端与DC-DC转换器连接，温度感应电路的输出端与模数转换器连接；晶体振荡器与时钟电路接口连接；模拟信号放大器与放大电路接口连接；FLASH存储器与IIC通讯接口连接；键盘接口与键盘连接；LCD驱动电路与LCD显示屏连接；背光控制电路与背光灯连接；蜂鸣器驱动电路与蜂鸣器模块连接；模拟信号放大器，用于接收一光电探测器输出的模拟电信号；中央处理器，用于将所述模拟电信号转换为对应的温度值，并根据所述温度值所产生的时间，于FLASH存储器对温度值及时间进行关联存储。 A non-contact infrared thermometer, which includes a DC-DC converter, a power management circuit, a temperature sensing circuit, an analog-to-digital converter, a central processing unit, a clock circuit interface, a crystal oscillator, an analog signal amplifier, an amplifier circuit interface, and a FLASH Memory, IIC communication interface, keyboard interface, LCD drive circuit, backlight control circuit, buzzer drive circuit, buzzer module, keyboard, backlight and LCD display; power management circuit, analog-to-digital converter, clock circuit interface, The amplifier circuit interface, IIC communication interface, keyboard interface, backlight control circuit and buzzer drive circuit are all electrically connected to the central processing unit; the DC-DC converter is electrically connected to the power management circuit, and the input terminal of the temperature sensing circuit is connected to the DC -DC converter connection, the output end of the temperature sensing circuit is connected to the analog-to-digital converter; the crystal oscillator is connected to the clock circuit interface; the analog signal amplifier is connected to the amplification circuit interface; the FLASH memory is connected to the IIC communication interface; the keyboard interface is connected to the keyboard ; The LCD drive circuit is connected to the LCD display; the backlight control circuit is connected to the backlight; the buzzer drive circuit is connected to the buzzer module; the analog signal amplifier is used to receive an analog electrical signal output by a photodetector; the central processing unit is used to convert the analog electrical signal into a corresponding temperature value, and store the temperature value and time in the FLASH memory according to the time generated by the temperature value.
优选的，所述光电探测器为红外光电探测器。 Preferably, the photodetector is an infrared photodetector.
优选的，所述温度感应电路包括一NTC电阻和一电阻R3，NTC电阻的一端与DC-DC转换器的输出端连接，NTC电阻的另一端与模数转换器连接，电阻R3的一端接地，电阻R3的另一端与模数转换器连接。 Preferably, the temperature sensing circuit includes an NTC resistor and a resistor R3, one end of the NTC resistor is connected to the output end of the DC-DC converter, the other end of the NTC resistor is connected to the analog-to-digital converter, and one end of the resistor R3 is grounded, The other end of the resistor R3 is connected to the analog-to-digital converter.
优选的，所述蜂鸣器模块包括一蜂鸣器和一二极管D4，蜂鸣器的正极接线端与二极管D4的正极连接，蜂鸣器的负极接线端与二极管D4的负极连接，二极管D4的负极与一直流电源连接，二极管D4的正极与蜂鸣器驱动电路连接。 Preferably, the buzzer module includes a buzzer and a diode D4, the positive terminal of the buzzer is connected to the positive pole of the diode D4, the negative terminal of the buzzer is connected to the negative pole of the diode D4, the diode D4 The negative pole is connected to a DC power supply, and the positive pole of the diode D4 is connected to the buzzer drive circuit.
本发明具有如下有益效果： The present invention has following beneficial effects:
能够将温度值和时间进行关联存储，用户可以知道自己一段时间内的体温变化，便于了解自己的身体状况。 The temperature value and time can be stored in association, and users can know their body temperature changes over a period of time, which is convenient for understanding their physical conditions.
the
附图说明 Description of drawings
图1为本发明较佳实施例的非接触式红外体温计的结构示意图。 Fig. 1 is a schematic structural diagram of a non-contact infrared thermometer according to a preferred embodiment of the present invention.
the
具体实施方式 Detailed ways
下面，结合附图以及具体实施方式，对本发明做进一步描述。 In the following, the present invention will be further described in conjunction with the drawings and specific embodiments.
如图1所示，一种非接触式红外体温计，其包括DC-DC转换器、电源管理电路、温度感应电路、模数转换器、中央处理器、时钟电路接口、晶体振荡器、模拟信号放大器、放大电路接口、FLASH存储器、IIC通讯接口、键盘接口、LCD驱动电路、背光控制电路、蜂鸣器驱动电路、蜂鸣器模块、键盘、背光灯和LCD显示屏；电源管理电路、模数转换器、时钟电路接口、放大电路接口、IIC通讯接口、键盘接口、背光控制电路和蜂鸣器驱动电路均与中央处理器电性连接；DC-DC转换器与电源管理电路电性连接，温度感应电路的输入端与DC-DC转换器连接，温度感应电路的输出端与模数转换器连接；晶体振荡器与时钟电路接口连接；模拟信号放大器与放大电路接口连接；FLASH存储器与IIC通讯接口连接；键盘接口与键盘连接；LCD驱动电路与LCD显示屏连接；背光控制电路与背光灯连接；蜂鸣器驱动电路与蜂鸣器模块连接；模拟信号放大器，用于接收一光电探测器输出的模拟电信号；中央处理器，用于将所述模拟电信号转换为对应的温度值，并根据所述温度值所产生的时间，于FLASH存储器对温度值及时间进行关联存储。 As shown in Figure 1, a non-contact infrared thermometer includes a DC-DC converter, a power management circuit, a temperature sensing circuit, an analog-to-digital converter, a central processing unit, a clock circuit interface, a crystal oscillator, and an analog signal amplifier , amplifier 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; power management circuit, analog-to-digital conversion The device, clock circuit interface, amplifier circuit interface, IIC communication interface, keyboard interface, backlight control circuit and buzzer drive circuit are all electrically connected to the central processing unit; the DC-DC converter is electrically connected to the power management circuit, and the temperature sensor The input end of the circuit is connected to the DC-DC converter, the output end of the temperature sensing circuit is connected to the analog-to-digital converter; the crystal oscillator is connected to the clock circuit interface; the analog signal amplifier is connected to the amplifying circuit interface; the FLASH memory is connected to the IIC communication interface The keyboard interface is connected with the keyboard; the LCD driving circuit is connected with the LCD display; the backlight control circuit is connected with the backlight; the buzzer driving circuit is connected with the buzzer module; Electrical signal; the central processing unit is used to convert the analog electrical signal into a corresponding temperature value, and store the temperature value and time in the FLASH memory according to the time generated by the temperature value.
本实施例的光电探测器为红外光电探测器。 The photodetector in this embodiment is an infrared photodetector.
本实施例的温度感应电路包括一NTC电阻和一电阻R3，NTC电阻的一端与DC-DC转换器的输出端连接，NTC电阻的另一端与模数转换器连接，电阻R3的一端接地，电阻R3的另一端与模数转换器连接。 The temperature sensing circuit of this embodiment includes an NTC resistor and a resistor R3, one end of the NTC resistor is connected to the output end of the DC-DC converter, the other end of the NTC resistor is connected to the analog-to-digital converter, one end of the resistor R3 is grounded, and the resistor The other end of R3 is connected to the analog-to-digital converter.
本实施例的蜂鸣器模块包括一蜂鸣器和一二极管D4，蜂鸣器的正极接线端与二极管D4的正极连接，蜂鸣器的负极接线端与二极管D4的负极连接，二极管D4的负极与一直流电源连接，二极管D4的正极与蜂鸣器驱动电路连接。 The buzzer module of this embodiment includes a buzzer and a diode D4, the positive terminal of the buzzer is connected to the positive pole of the diode D4, the negative terminal of the buzzer is connected to the negative pole of the diode D4, and the negative pole of the diode D4 It is connected with a DC power supply, and the anode of diode D4 is connected with the buzzer driving circuit.
使用时，将光电探测器对准人体的测量部位，按下键盘的SW0键，通过光电探测器的光电转换，得到电信号，然后中央处理器就可以根据电信号进行运算，得到对应的温度值。若该温度值高于预设值，则驱动蜂鸣器工作。此外，通过FLASH存储器，可对温度值和对应的产生时间进行关联，通过按下键盘的SW1键，即可在LCD显示屏上看到历史体温数据，方便用户了解自身的体温状况，例如，给受孕等作充分准备。 When in use, aim the photodetector at the measuring part of the human body, press the SW0 key on the keyboard, and obtain an electrical signal through the photoelectric conversion of the photodetector, and then the central processing unit can perform calculations based on the electrical signal to obtain the corresponding temperature value . If the temperature value is higher than the preset value, the buzzer will be driven to work. In addition, through the FLASH memory, the temperature value and the corresponding generation time can be associated. By pressing the SW1 key on the keyboard, the historical body temperature data can be seen on the LCD display, which is convenient for users to understand their own body temperature. Fully prepare for conception.
对于本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及变形，而所有的这些改变以及变形都应该属于本发明权利要求的保护范围之内。 For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention.
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Cited By (4)
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| CN104000560A (en) * | 2014-05-26 | 2014-08-27 | 广东工业大学 | Control circuit of electronic thermometer for rapidly measuring human body temperature |
| CN104460363A (en) * | 2014-10-13 | 2015-03-25 | 天津三星电子有限公司 | Automatic shut-down method for display device and display device adopting 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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