JP2008139183A - Temperature measuring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a temperature measuring device for giving an alarm immediately when detecting a temperature leading to a risk by taking the influence of environmental temperature change into consideration to accurately measure a temperature measured value without being out of a practical temperature of a measuring object largely. <P>SOLUTION: The temperature measuring device includes: a casing having a first opening hole and a second opening hole communicating with the inside; a first sensor provided in the casing so as to measure the temperature of the measuring object through the first opening hole; a second sensor provided in the casing so as to measure the temperature of a circumferential environment through the second opening hole; a control unit provided in the casing so as to calculate the practical temperature based on the temperature of the measuring object from the first sensor and the temperature of the circumferential environment from the second sensor; and an alarm unit provided in the casing so as to output an alarm signal by being controlled by the control unit when the practical temperature reaches a prescribed temperature. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a temperature measurement device, and more particularly to a temperature measurement device that can accurately measure the actual temperature of a measurement target.

  In recent years, there has been a tendency that electronic thermometers are becoming increasingly popular in place of mercury thermometers that have been widely used for environmental conservation. As this electronic thermometer, there exists an example as shown in FIG. 5 (patent document 1).

  According to Document 1, this electronic thermometer is provided with a circuit 51 for measurement in a pen-shaped casing 500, an LCD display 52 and a switch 53 for indicating a temperature value on its surface, and further A probe 54 having a built-in electronic sensor 541 for measuring temperature is formed at the front end. When the probe 54 is used, the temperature can be measured by applying the probe 54 to a measurement object such as human skin or water, and the temperature value can be read from the LCD display 52.

However, the conventional electronic thermometer has a problem that the obtained temperature value greatly deviates from the actual body temperature to be measured due to the influence of the surrounding environment (for example, air conditioning). In addition, since the actual body temperature of the measurement target cannot be measured correctly, there is a problem that it is not possible to detect a low temperature or a high temperature that should deviate greatly from the actual body temperature and cannot be quickly adapted.
Taiwan Utility Model Publication No. 335899

  The present invention has been made in view of the above-mentioned drawbacks, and it is possible to accurately measure the temperature measurement value without greatly deviating from the actual temperature of the measurement object in consideration of the influence of the environmental temperature change, and it is dangerous. An object of the present invention is to provide a temperature measuring device that can issue an alarm immediately when temperature is detected.

  In order to achieve the above object, the present invention is configured to measure a temperature of an object to be measured through a casing having a first opening and a second opening communicating with each other, and the first opening. A first sensor provided in the casing; a second sensor provided in the casing so as to measure a temperature of an ambient environment through the second opening; and the first sensor, Controlling the second sensor to perform the measurement, and calculating an actual temperature based on the temperature of the measurement target from the first sensor and the ambient temperature from the second sensor. And a control unit provided in the casing so as to output an alarm signal to the control unit when the actual temperature reaches a predetermined temperature. To provide a temperature measuring device for.

  Further, the control unit is provided with a detection provided in the casing so as to detect that the measurement object is not in a position where the first sensor can reliably perform the measurement through the first opening. And when the detector detects that the measurement object is not in a position where the first sensor can reliably perform the measurement through the first hole, the alarm means It is desirable to output a notification signal under the control of the control unit.

  As the detector, a light detection element may be used, or a capacitance detection element may be used.

  In the temperature measuring device configured as described above, it is preferable that the first opening and the second opening are respectively located on two back-to-back surfaces of the casing.

  A first packing for sealing the first opening is sandwiched between the surface having the first opening and the first sensor, and the surface having the second opening and the first sensor It is preferable that a second packing for sealing the second opening is sandwiched between the two sensors.

  The control unit includes a circuit board and a switch for opening and closing a circuit of the circuit board provided on the circuit board, and a surface having the second hole is provided in the inside corresponding to the switch. A third opening is further provided, and the second packing has a protrusion that seals the third opening and elastically deforms to turn on the switch. It may be formed.

  The control unit has storage means for storing the individual information for each measurement object in an updatable manner, temperature correction data corresponding to the individual information is registered in the storage means, and the control unit The actual temperature is calculated based on the temperature obtained by correcting the temperature of the measurement target from the first sensor by the temperature correction data corresponding to the individual information of the measurement target and the ambient temperature from the second sensor. You may make it do.

  Any of an LED element, a buzzer, and a vibration mechanism can be used as the alarm means.

  It is preferable that the control unit further includes a transmission unit for transmitting the calculated actual temperature to the outside by wireless communication.

  It is preferable that the control unit further includes display means for displaying the calculated actual temperature.

  The control unit may include a timer, and may be configured to display the current time from the timer on the display means by the control unit.

  A temperature sensor IC can be used as both the first sensor and the second sensor.

  According to the temperature measurement device of the present invention, not only the temperature of the measurement target is measured, but also the temperature of the ambient environment is measured, and the actual temperature is calculated based on the temperature of the measurement target and the temperature of the ambient environment. Therefore, it is possible to accurately grasp the temperature value from the measurement object in consideration of the temperature change of the environment. Further, since the alarm means can output an alarm signal when the actual temperature reaches a predetermined temperature, it is possible to alert the measurement object and take appropriate measures at an early stage.

  Hereinafter, preferred embodiments of a temperature measuring device according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of a temperature measuring device according to an embodiment of the present invention. FIG. 2 is a block diagram showing a schematic configuration of the temperature measuring apparatus of the embodiment. This temperature measuring device is for measuring a temperature by applying to a measuring object such as a human body or water. In the present embodiment, an example in which temperature is applied to an arm of a human body will be described.

  As shown in FIG. 1, the casing 10, the first sensor 31, the second sensor 32, the control unit 20, the detector 33, the alarm means 40, the transmission means 50, and the display means 60 are mainly used. It has.

  The casing 10 is configured so that the upper and lower two portions 12 and 11 are vertically aligned with each other, and the first opening 140 communicating with the bottom surface 14 of the lower portion 11 and the upper surface 15 of the upper portion 12 communicate with each other. The second opening 150 and the third opening 151 are provided.

  As the first sensor 31, a temperature sensor IC (Analog Devices, product number ADT7301) is used, and is provided in the casing 10 so as to measure the temperature of the measurement target through the first opening 140.

  A first packing 17 that seals the first opening 140 is sandwiched between the bottom surface 14 of the lower portion 11 of the casing 10 and the first sensor 31.

  The second sensor 32 uses a temperature sensor IC (Analog Devices, product number ADT7301), and is provided in the casing 10 so as to measure the temperature of the surrounding environment through the second opening 150.

  In addition, the second opening 150 and the third opening 151 are sealed between the upper surface 15 of the upper portion 12 of the casing 10 and the second sensor 32, and the second opening 150 is formed to have a protrusion 181. Packing 18 is sandwiched.

  The packings 17 and 18 are for protecting the components in the casing 10 from water and dust, and do not hinder the operation of the first sensor 31, the second sensor 32, the detector 33, and the like. It is extremely thin.

  The control unit 20 is provided in the casing 10 and mainly includes a battery 23 as a power source, a circuit board 21, a switch 22 for opening and closing a circuit of the circuit board 21 provided on the circuit board 21, and the circuit board 21. The microcontroller 26 is electrically connected to the circuit board 21, the storage means 25 is electrically connected to the circuit board 21, and the timer 27.

  When the measurement is to be performed, the user presses the protrusion 181, and the protrusion 181 is elastically deformed to turn on the switch 22.

  The storage means 25 stores the individual information such as name, gender, identification number, telephone number, address, age, medical record, etc. for each measurement object in an updatable manner, and temperature correction data corresponding to each age in the individual information. Is registered. In this embodiment, as the storage means 25, SPI Serial EEPROMS (US Atmel, product number AT25320) is used.

  In addition, the microcontroller 26 (Texas Instruments, USA, product number MSP430F2131) controls the first sensor 31 and the second sensor 32 to perform the respective measurements, and the temperature of the measurement target from the first sensor 31. The actual temperature is calculated based on the temperature obtained by correcting the temperature with the temperature correction data corresponding to the age of the measurement target and the temperature of the ambient environment from the second sensor 32.

  In the present embodiment, since the temperature correction data is based on the body temperature of adolescents of 20 to 50 years old, 0 ° C. corresponds to 20 to 50 years old, and −0. A correction value of + 0.2 ° C. is used for 2 ° C. and over 50 years old.

  The detector 33 is controlled by the microcontroller 26 and is provided in the casing 10 so as to detect that the measurement target is not in a position where the first sensor 31 can reliably perform the measurement through the first opening 140. It has been.

  In this embodiment, a light detection element is used as the detector 33, but a capacitance detection element may be used.

  The alarm means 40 comprises an LED element 41 and a buzzer 42. When the actual temperature reaches a predetermined temperature controlled by the microcontroller 26, the alarm means 40 generates a continuous light emission from the LED element 41 and an alarm signal as a continuous sound from the buzzer 42. When the detector 33 detects that the first sensor 31 is not in a position where the first sensor 31 can reliably perform the measurement via the first aperture 140, intermittent light emission from the LED element 41 and intermittent from the buzzer 42 are performed. It is provided in the casing 10 so as to output a notification signal as sound. In the present embodiment, the LED element 41 and the buzzer 42 are used as the alarm means 40. However, for example, a vibration mechanism or the like can also be used, that is, it is possible to report an abnormality or call attention. Can be used if possible.

  The transmission means 50 can transmit the calculated actual temperature controlled by the microcontroller 26 by a wireless communication method to an information processing terminal of an external nurse station, for example. In this embodiment, as the transmission means 50, an RF IC (Norway Chipcon, product number CC2500) is used.

  The display means 60 is for controlling the microcontroller 26 to display the calculated actual temperature, and an LCD is used here.

  Further, the microcontroller 26 has a timer 27 and is configured to display the current time from the timer 27 on the display means 60.

  As shown in FIG. 1, fastening members 13 and 13 are provided in the lower part 11 of the casing 10, and a combination of the fastening members 13 and 13 and a band (not shown) or the like is used for a human arm like a wristwatch. It becomes possible to measure continuously by being attached to.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments and is not construed in a narrow sense. That is, various modifications and changes can be made within the scope of the idea of the present invention. is there.

  As described above, the temperature measuring device of the present invention not only measures the temperature of the measurement target, but also measures the temperature of the surrounding environment, and calculates the actual temperature based on the temperature of the measurement target and the temperature of the ambient environment. Therefore, it is possible to accurately grasp the temperature value from the measurement object in consideration of the temperature change of the environment. Further, since the alarm means can output an alarm signal when the actual temperature reaches a predetermined temperature, it is possible to alert the measurement object and take appropriate measures at an early stage.

The exploded perspective view of the temperature measuring device of one embodiment of the present invention. The block diagram which shows schematic structure of the temperature measurement apparatus of the said embodiment. The top view of the temperature measuring device of the embodiment. Sectional drawing which follows the IV-IV line | wire in FIG. Sectional drawing of an example of the conventional temperature measuring apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Casing 11 Lower part 12 Upper part 13 Fastening member 14 Bottom face 15 Upper face 140 1st opening 150 2nd opening 151 3rd opening 17 1st packing 18 2nd packing 181 Protrusion 20 Control unit 21 Circuit Substrate 23 Battery 22 Switch 25 Storage means 26 Microcontroller 27 Timer 31 First sensor 32 Second sensor 33 Detector 40 Alarm means 41 LED element 42 Buzzer 50 Transmitting means 60 Display means

Claims (14)

A casing having a first opening and a second opening communicating with the inside;
A first sensor provided in the casing so as to measure the temperature of the object to be measured through the first opening;
A second sensor provided in the casing to measure the ambient temperature through the second aperture;
Each of the first sensor and the second sensor is controlled to perform the measurement, and the actual temperature is based on the temperature of the measurement target from the first sensor and the ambient temperature from the second sensor. A control unit provided in the casing to calculate
An alarm means provided in the casing so as to be controlled by the control unit to output an alarm signal when the actual temperature reaches a predetermined temperature. A detector that is controlled by the control unit and is provided in the casing so as to detect that the measurement target is not in a position where the first sensor can reliably perform the measurement through the first opening. Further comprising
The alarm means is controlled by the control unit when the detector detects that the object to be measured is not in a position where the first sensor can reliably perform the measurement through the first hole. The temperature measuring device according to claim 1, wherein a notification signal is output.   The temperature measuring device according to claim 2, wherein a light detecting element is used as the detector.   The temperature measuring device according to claim 2, wherein a capacitance detecting element is used as the detector.   2. The temperature measuring device according to claim 1, wherein the first opening and the second opening are respectively on two surfaces of the casing that are back to back. A first packing for sealing the first opening is sandwiched between the surface having the first opening and the first sensor;
The second packing for sealing the second opening is sandwiched between the surface having the second opening and the second sensor. Temperature measuring device. The control unit comprises a circuit board and a switch for opening and closing a circuit of the circuit board provided on the circuit board,
The surface having the second opening further has a third opening communicating with the inside corresponding to the switch,
The second packing is formed so as to have a protrusion that seals the third opening and can be elastically deformed to turn on the switch. The temperature measuring device described in 1.   The temperature measuring apparatus according to claim 1, wherein the control unit has storage means for storing individual information in an updatable manner for each measurement target. In the storage means, temperature correction data corresponding to each individual information is registered,
The control unit is based on the temperature obtained by correcting the temperature of the measurement target from the first sensor by the temperature correction data corresponding to the individual information of the measurement target and the temperature of the surrounding environment from the second sensor. The temperature measuring device according to claim 8, wherein the actual temperature is calculated.   The temperature measuring device according to claim 1, wherein at least one of an LED element, a buzzer, and a vibration mechanism is used as the alarm means.   The temperature measuring device according to claim 1 or 9, wherein the control unit further includes a transmission unit for transmitting the calculated actual temperature to the outside by wireless communication.   The temperature measuring device according to claim 1, wherein the control unit further includes display means for displaying the calculated actual temperature. The control unit has a timer,
The temperature measurement device according to claim 12, wherein the control unit is configured to display the current time from the timer on the display means.   The temperature measuring device according to claim 1, wherein a temperature sensor IC is used as each of the first sensor and the second sensor.

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