JPS62278420A - Thermometer - Google Patents

Abstract

PURPOSE:To obtain a simply structured thermometer enabling whether a temperature is high or low to be intuitively read by taking-in temperature values detected by a temperature sensing unit at every prescribed time and storing the temperature values. CONSTITUTION:A thermometer is provided with a body portion, a temperature sensing unit 2 for detecting the continuously changing temperature of an object being measured, and A/D converter 3 accommodated in the body portion for sampling temperature values detected by the unit 2 at 1min intervals, digitally converting and outputting the values, a CPU4 that is a controller for sequentially taking-in temperature value data from the converter 3 and a temperature data memory 5 that is a storage for storing the temperature value data. The temperature of the object being measured are detected by the temperature sensing unit 2, taken in at prescribed time divisions and stored in the storage. Further, the controller 4 is connected to the temperature sensing unit 2 and the storage 5, which are freely selected and the temperature value data are taken out of either of the selected temperature sensing unit 2 or the storage 5. The temperature value data taken out by the controller 4 are one-dimensionally displayed on a bar graph display.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a thermometer that displays temperature values one-dimensionally.

(Prior Art) Conventionally, a lifting platform, an alcohol thermometer, a water W & thermometer, etc., for detecting the temperature of an object to be measured have been often used as simple means. These thermometers are equipped with a temperature sensitive body that expands and changes as the temperature changes, and display temperature (analog display) based on the volume of this temperature sensitive body.

Additionally, digital thermometers that display detected temperature values in numbers are also widely used, including for body temperature measurement.

(Problems to be Solved by the Invention) The conventional thermometer described above has the following problems.

a. Alcohol thermometers or mercury thermometers only display instantaneous values and cannot read past data.

b. It is difficult to read the temperature intuitively with a digital thermometer.

In connection with the above-mentioned circumstances, a two-dimensional display is provided in which the horizontal axis shows time and the vertical axis shows temperature values, and the two-dimensional display displays measured temperature values over a predetermined period of time in a graph. There is a thermometer that eliminates the above problem with VH.

However, this thermometer was expensive and was not suitable for easy temperature measurement.

The present invention has been made in view of the above-mentioned problems, and has a simple configuration, and is capable of intuitively reading high and low temperatures, and also allows past temperature value data to be called up and read. The purpose is to promote the use of thermometers.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a temperature-sensing section that detects the temperature of an object to be measured, and a temperature value detected by this temperature-sensing section that is collected at predetermined time intervals. The temperature sensor is connected to the storage section that stores the information, the temperature sensing section, and the storage section, and the temperature sensing section and the storage section are freely selected. The present invention is characterized by comprising a control section that takes out value data, and a bar graph display section that one-dimensionally displays the temperature value data taken out by the control section.

(Embodiment) FIG. 1 is a block diagram showing a thermometer according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the outer shape of the thermometer.

This thermometer includes a main body part 1 having a substantially rectangular parallelepiped shape, a temperature sensing part 2 that is pulled out from the main body part 1 via a cable and detects the temperature of the object to be measured, which changes from time to time, and is housed within the main body part 1.
The temperature value (analog ff1) detected by the temperature sensor 2 is sampled at one-minute intervals, converted into digital data, and outputted by the A/D converter 3, and the temperature value data is sequentially taken from the A/D converter 3. The temperature data memory 5 is connected to the CPU 4 and is a storage unit that stores temperature value data.

In this case, the CPU 4 sequentially inputs the temperature value data in hourly intervals [t+], [tz1... ...['tn
] (Hereinafter, an arbitrary section within this will be explained as [tllll]). Then, when the current temperature detection is performed in the interval [tm], CPtJ4 corresponds to the current detection data (hereinafter referred to as current data Taf) and drives CD7 (the next three elements to blink). Temperature value data input from the start point of the interval [tll] to the present time (hereinafter referred to as
The past data Tp) and the current data Tar are compared each time the current data Taf is input, and each time the current data Tar is input! l[tll minimum Fl
iTamin and the maximum value Ta1aX are calculated, and the maximum value Ta corresponding to the minimum value Ta1in is calculated from the element of CD7.
The elements up to the LCD 7 corresponding to 1laX are driven to light up.

In addition, in this way, the CPU 4 determines the minimum value (hereinafter referred to as the interval minimum value) Te+gin and the maximum value (hereinafter referred to as the interval maximum value) Temax of the temperature value data in the interval [tll] at the end point of the interval [tm]. Calculate,
This interval minimum value Tem1n and interval maximum value Temax
is stored in the temperature data memory 5 as data of the interval [tlll] at each end point of the interval [tll].

A long bar graph display (LCD) 7 made of liquid crystal is connected to the CPU 4, and the LCD 7 is connected to the CPU 4.
4, it is divided into small areas along the longitudinal direction and driven (hereinafter, for convenience, these small area divisions are referred to as elements).

The LCD 7 is attached to the front panel 11 of the main body 1 as shown in FIG.

The front panel 11 displays 10 degrees from 0°C along the LCD 7.
There is a scale up to 50 degrees Celsius, and elements that correspond to this scale will send temperature value data equivalent to this scale to the CPU.
It is designed to be driven by input from 4.

The front panel 11 also includes a temperature scroll button 8 and a temperature scroll display section 81 that is connected to the temperature scroll button 8 via CPtJ4 and digitally displays the temperature value.
, a time scroll button 9, and a time scroll display section 91 connected to the time scroll button 9 via the CPU 4 and displaying the time digitally.

When the temperature scroll button 8 is pressed, a temperature value is displayed on a temperature scroll display section 81, and the temperature value data shown here is input to the CPU 4. When this temperature value data is input to the CPLJ 4, the elements of the LCD 7 at the position corresponding to this temperature value arc are driven and blink at a synchronization different from the blinking cycle when displaying the current data Tar described above. In this case, the temperature scroll button 8 has a 2vA button for increasing and decreasing the numerical value, and changes the fA degree value of the temperature scroll display section 81 to increase or decrease, and also causes the LC to blink accordingly.
I am trying to change the element of D7.

When the time scroll button 9 is pressed, the time is displayed on the time scroll display section 91, and the time data shown here is input to the CPU 4.

In this case, in this embodiment, the display time of the time scroll display section 91 is set to be the intermediate value of the interval [1+] (note that the setting of the display time is not limited to this).

When this time data is input to the CPU 4, the drive of the LCD 7 is temporarily stopped, while the section [
tl ] temperature value data (minimum value Te1n and maximum value Te5ax) is taken out from temperature data memory 5.

CPLJ4 is the LC corresponding to this minimum value Tea in
LCD that corresponds to the maximum value Te1llax from the D7 element
Up to 7 elements are lit. In this case, the time scroll button 9 has two buttons, one for upper and lower limits of time, and raises or lowers the time on the time scroll display section 91, and also retrieves the temperature data from the temperature data memory 5 accordingly. The value interval [tm] is changed.

Note that a clock generator 6 is connected to the CPU 4, and the CPU 4 inputs a clock signal generated by the clock oscillator 6, and uses this clock signal to control each circuit of the thermometer tg++. I have to.

The operation of the thermometer configured as described above will be explained.

When the power is turned on and the temperature sensor 2 is applied to the object to be measured, the temperature of the object to be measured is converted into an electrical signal by the temperature sensor 2, and then converted every minute by the A/D converter 3. is converted into a digital value and input to the CPU 4.

The CPU 4 is shown in FIG. 3(a), (1)).
C% When the temperature value data Td of the first minute (1st minute) is input from the A/D converter 3 in the interval [t1], this temperature value data Td becomes the current γ-ta Taf at this point, and the temperature value data Td becomes the current γ-ta Taf. The element of the LCD 7 corresponding to the data Taf is driven to blink, and the current temperature of the object to be measured is displayed on the LCD 7.

Next, when the temperature value data Td for the second minute is input, the elements that have been driven to blink start to be driven to turn on. At the same time, the temperature value data Td of the first minute previously input at this point becomes the past data Tp, and the temperature value data Td of the second minute becomes the current data Tar, and the LCD 7 corresponding to this current data Taf becomes the past data Tp. element is driven to blink and the temperature of the object to be measured (J3) is displayed on the LCD 7 at the current 2nd minute). At the same time, CPtJ4 compares past data Tp and current data Taf', and if Tp<Tar, sets this past data TI) to the minimum value Ta1n at this point, and also sets T
If p > Tar, then this past data T (l is the maximum value raa + aX at this point in time (for convenience of explanation, it is assumed to be 1 p + Tar in this example, but if Tp = Tar, the past data [p is the minimum value data Ta1n or Maximum value data Ta+naX may be used.) Minimum value Tam1
n, maximum ifi The elements of the LCD 7 corresponding to any one of Ta1laX and up to the flashing current data Taf are driven to light up. In this case, the present embodiment will be described below as 1st minute temperature value data Td<2nd minute temperature value data Td.

Then, when the third minute temperature value data 1d is input, the elements that were driven to turn on continue, and the elements that were driven to blink are newly driven to turn on. At the same time, 1
The temperature value data Td of the second minute and the second minute are the past data [p, and the temperature value data Td of the third minute is the current data Ta
f, and it corresponds to this current data Tar.
7 elements are driven to blink.

Then, the temperature of the object to be measured at the current 3rd minute) is displayed on the LCDT. At the same time, CPIJ4 is the minimum value Tam1n of past data Tp (1st minute temperature value data T
d) and the maximum value Tamax (temperature value data Td for the second minute) and the current data Taf, and depending on the magnitude, a new minimum value of 1flTamin is determined as follows, 63
The large value Tamaχ is set and LCr)'7 is driven.

(1) Tar <Tam1n: Current data Tar
is a new minimum value Tan i n, and this minimum value Tam
From the next element of the LCD7 element corresponding to i n (during blinking drive), the LCD corresponding to maximum ffl Tag + ax
The elements up to element No. 7 are driven to light up.

(2) Tam1n <Tar <Tamax; Maximum from the element of LCD7 corresponding to the minimum value Tam in, excluding the element of LCD7 corresponding to current data Tar (during blinking drive)! The elements up to the element of LCD 7 corresponding to a-max are turned on. (See Figure 4(a)) (3) D alax <Tar ; Set the current data D at to the new maximum 11 T aiax, and this maximum value Tamax
The elements from the element in front of the element of the LCD 7 corresponding to (during blinking) to the element of the LCD 7 corresponding to at least 1 [Tam1n are driven to light up.

Thereafter, similarly, temperature value data inputted at one-minute intervals are sequentially processed over this first interval [tml]. Then, the minimum value Tam1n and the maximum value Tamax equalized at the final stage of the first interval [tml are the minimum value Tem1n and the maximum value TemaX in the first interval [tml, respectively, as shown in FIG. 3(C). The section minimum value Tem1n and the section maximum value Tea+ax are stored in the temperature data memory 5 as data for the section [tml, while the driving of the LCD 7 is cleared to -H to end the processing for the first section [tml.

When this first section [tml processing is finished, the following 2
In the th interval [t2], the element of LCD7 corresponding to the current data Tar is driven to blink in the same manner as described above, and the elements from the element of LCD7 corresponding to the minimum value Tam1n to the element of CD7 corresponding to the maximum value Tan+ax are driven to blink. At the same time, the section minimum value Te1in and the section maximum value Temax are stored in the temperature data memory 5 as data for the second section [t2].

Thereafter, the same process is performed sequentially for the third section [t3], . . . the n-th section [tn].

When the temperature value is displayed on the LCD 7 as described above, when the temperature scroll button 8 is operated, the temperature value corresponding to this operation is displayed on the temperature scroll display section 81.
At the same time, the elements of the LCD 7 corresponding to the displayed temperature value are displayed on the CPL as shown in FIG. 4(b).
I4 serves as a scroll pixel and is driven to blink.

For example, the minimum value Ta1 displayed on the LCD 7
To accurately and quickly read temperature values such as in, current data Tar, maximum value Tamax, etc., operate the temperature scroll button 8 and move the position of this scroll element to change the position of this scroll element to the minimum value Ta1in.

The positions of the elements of the LCD 7 corresponding to the current data Tar, 11 large value Ta1aX, etc. are made to match. Then, the temperature value corresponding to the aligned element of the LCD 7 is digitally displayed on the temperature scroll display section 81, and the temperature value is immediately read.

Also, when the time scroll button 9 is operated, the LCD
7 is temporarily stopped. Then, the time is sequentially displayed on the time scroll display section 91 in accordance with the operation. The section including this displayed time [section minimum value Te of tml
The CPU 4 retrieves the element of the LCD 7 from the element of the LCD 7 corresponding to the interval minimum 1]Teain to the element of the LCD 7 corresponding to the interval maximum value Temax. When the lamp is turned on, the temperature change range in that section [tml can be easily read.

Although the explanation is omitted in this embodiment, the following configuration may be used.

(1) In this embodiment, an LCD constructed using liquid crystal is used as an example of a display section that displays temperature values one-dimensionally, but the display section may be constructed using an LED instead.

(2) In this example, the sampling time is 1 minute, and
Although the case where the period in the temperature data memory 5 etc. is one hour has been described, each time period is not limited to this embodiment.

(3) In addition, in this embodiment, the front panel of the main body 1 is equipped with a rotor.
The scale is displayed as "cJ rlo"cJ...r50"cJ, but the temperature range of the object to be measured is ○℃~50℃
If it is expected that the temperature will be in a range other than that, the elements of the CD 7 may be made to correspond to the temperature value within that temperature range, and this temperature value may be displayed on a scale along the LCD 7 on the front panel.

(Effects of the Invention) As explained above, the present invention displays the temperature in a -dimensional manner, making u control easy and simplifying the configuration.Furthermore, since the temperature is displayed in the form of a bar graph, the temperature can be displayed intuitively. The detected temperature value can be stored in the storage unit,
By operating a predetermined button, this stored temperature value is displayed on the display section, so past temperature value data can be easily checked.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the configuration of a thermometer according to an embodiment of the present invention, Fig. 2 is a perspective view showing the outer shape of the thermometer, and Fig. 3 (
a) is a conceptual diagram showing an example of temperature change of the object to be measured;
Figure (b) shows the section [t1] of the thermometer shown in Figures 1 and 2.
Fig. 3(C) is a conceptual diagram showing the detected temperature in Fig. 3(b) displayed on the CD of the same thermometer; Fig. 4(a) is a conceptual diagram showing the detected temperature in Fig. 3(b). Conceptual diagram showing an example of the display in the current measurement time interval of the meter CD, Fig. 4(b)
2 is a conceptual diagram showing an example of display on the LCD using the temperature scroll button of the same thermometer. 2... Temperature sensing section, 4... CPU, 5... Temperature data memory, 7... LCD, 8... Temperature scroll button, 9... Time scroll button. Patent Applicant Isao Kai of Tateishi Den Co., Ltd. Agent Patent Attorney Tetsuji Iwakura (+l!! 1 person) Figure 1 $2 Figure 3 Door sliding door 4

Claims (1)

[Claims] A temperature sensing section that detects the temperature of the object to be measured, a storage section that captures and stores the temperature values detected by this temperature sensing section at predetermined time intervals, and a connection to each of the temperature sensing section and storage section. and a control section that freely selects the temperature sensing section and storage section and takes out value data once from either the selected temperature sensing section or storage section, and one-dimensionally converts the temperature value data taken out by this control section. 1. A thermometer characterized by comprising a bar graph display section that displays a bar graph.