JPH0991445A - Graph display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the graph display device by which within which range displayed data are located is discriminated at a glance. SOLUTION: When a measurement timing comes, a sensor section is driven to measure a temperature (S12). To which temperature range of a range color cross reference table measured temperature data enter is discriminated and color data set to the temperature range are stored in a temperature storage section with the temperature data (S18, S19). The temperature data stored in a temperature storage section 22 are graphically displayed according to color data (S20). Thus, the temperature data measured thereby are displayed by colors for each temperature range to which the temperature data belong.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for displaying data graphically.

[0002]

2. Description of the Related Art Conventionally, temperature and atmospheric pressure changes have been graphically displayed so that the user can intuitively understand the temporal changes in temperature and atmospheric pressure. In the case of graph display, changes in temperature and atmospheric pressure are measured at regular time intervals, and the measured data are displayed in time series on a dot-display liquid crystal display device to represent changes in the measured data.

[0003]

However, although the change of the data can be understood only by displaying the measured data in the form of a graph, it is difficult to understand at a glance which range the data is in.

For example, when the measured data is temperature data,
There is a case where it is desired to determine whether the measured temperature is within a desired temperature range, higher than the temperature range, or lower than the temperature range. In that case, in the conventional display method, the user has to compare the temperature data displayed in the graph with the temperature scale on the vertical axis to determine whether the temperature data is high, medium, or low. It was not an easy display.

SUMMARY OF THE INVENTION An object of the present invention is to provide a graph display device which allows a user to know at a glance which range the graph-displayed data falls within.

[0006]

The graph display device of the present invention includes a range designating means for designating a range of data, and a color designating means for designating a display color of the range designated by the range designating means. And a display unit for displaying the data in a different range in a graph with a specified color.

In the present invention, when the data is displayed as a graph, the data is displayed in different colors depending on the range of the data. Can be understood at.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit block diagram of a display device for displaying temperature changes in a graph according to a first embodiment of the present invention, for example, an electronic wrist watch with a temperature display function.

In the figure, the clock signal generated by the oscillator circuit 1 is divided into a predetermined frequency by the frequency divider circuit 2 and the time and
It is output to the date counting circuit 3. Time / date counting circuit 3
The CPU 4 obtains the current time and date data by counting the signals divided by the frequency dividing circuit 2, and outputs the time and date data and the ternary signal a that determines the timing of temperature measurement in the sensor unit 5 described later. Output to.

The sensor section 5 comprises a temperature sensor. The analog signal detected by the sensor unit 5 is an A / D conversion circuit 6
Is converted into a digital signal and output to the CPU 4.
The CPU 4 executes a range / color input process, a temperature measurement, a temperature graph display process, and the like, which will be described later, according to a control program stored in the ROM 7, and the process result is RA
Temporarily store in M8. Further, the CPU 4 displays the measured temperature and the date and time counted by the time / date counting circuit 3 on the display unit 9 including a color liquid crystal display device or the like.

The display unit 9 is a graph display unit 9 composed of a dot matrix type color liquid crystal display device as shown in FIG.
a, a temperature display section 9b for displaying the latest measured temperature data as a digital value, and a time display section 9c for digitally displaying the time. The graph display section 9a is
The temperature data in the specified range is displayed in a graph with the color specified in the range / color input process described later. Graph display section 9
The vertical axis of a represents the measured temperature with a temperature scale of −10 ° to 40 ° printed, and the horizontal axis represents time.

Returning to FIG. 1, although not shown, the key input unit 10 designates a switch to be operated when the time is corrected, a switch and a color to be operated when a temperature range is designated by a range / color input process described later. It consists of switches that are operated when

Here, the configuration of the RAM 7 is shown in FIG.
This will be described with reference to FIG. The RAM 7 is shown in FIG.
A range / color correspondence table 21 for storing the set temperature range and the display color in association with each other, as shown in FIG.
As shown in, a temperature storage unit 22 that stores the measured temperature, the measurement date and time, and the display color is provided.

The range / color correspondence table 21 is provided with a storage area 21a for storing the set temperature range and a storage area 21b for storing the display color of the measurement data in the temperature range. In this range / color correspondence table 21,
The range input in the range / color input process described below and the display color of the range are stored.

Further, the temperature storage unit 22 includes a storage area 22a for storing the measured temperature, a storage area 22b for storing the date and time when the temperature was measured, and a storage area 22c for storing the display color of the measured temperature. 96 sets of storage areas are provided, and 96 sets of temperature data can be stored.

Next, the operation of the embodiment having the above configuration will be described with reference to the flow charts of FIGS. First, the range / color input processing for specifying the range of temperature data to be displayed in color and the display color of each range will be described. In the range input process of step S1 of FIG. 4, when a numerical value is input from the key input unit 10, the input numerical value is temporarily stored in the RAM 8 as temperature range data. In the color designation process of the next step S2, if a color is designated by the key input unit 10, the designated color is temporarily stored in the RAM 8.

When the range and color of the temperature data are designated, whether the temperature range set in the range / color correspondence table 21 and the temperature range input this time temporarily stored in the RAM 8 overlap with each other are checked. Judge (S3). If the temperature ranges overlap, the input priority process is executed after step S4. In this process, the temperature range and color input later are given priority, and the corresponding temperature range data in the range / color correspondence table 21 is rewritten. Next to the input priority process after step S4, or if it is determined in step S3 that the temperature ranges do not overlap, the process proceeds to step S5.
The dots in the range specified in the range / color correspondence table 21 of the graph display portion 9a are displayed in the specified color (S
5).

FIG. 7A is a diagram showing a display state at this time. When a temperature range of 30 ° or more and less than 40 ° is designated and a color of the range is designated, the graph display portion 9 is displayed.
The dots in the range of 30 ° to 40 ° on the temperature scale of a are displayed in the designated color (state of FIG. 7 (1)).

Next, the temperature range is 10 ° or more and 30 °.
When less than is specified and a color in that range is specified, 10 ° to 10 ° below the range of 30 ° to 40 ° on the graph display unit 9a.
The dots within the range of 30 ° are displayed in the specified color (state of Fig. 7 (2)). Similarly, if 0 ° or more and less than 10 °, -10 ° or more, and less than 0 ° are designated as the temperature range, the dots in the respective ranges are displayed in the designated color (Fig. 7 (3), (State of (4)).

When the temperature range and color are designated in this way,
Since the dots in the range specified in the graph display portion 9a are displayed in the specified color, the user can perform an input operation if the range and the color are confirmed.

Returning to FIG. 4, if the color of the dots in the input range is displayed, it is next determined whether or not the NEXT key has been operated (S6). If the NEXT key has been operated,
The process returns to step S1 and the above-described processing is repeated. At this time, if the NEXT key is not operated, it is determined whether or not the END key is operated (S7), and if the END key is operated, the process ends there.

Next, the operation when the graph display device measures and displays the temperature will be described. First, it is determined whether or not the measurement timing is every 3 minutes (FIG. 5, S11). When the measurement timing comes (S11, YES), the temperature is calculated from the data detected by the sensor unit 5 and converted into a digital value by the A / D conversion circuit 6 (S12). Further, it is determined whether or not the measurement time is the time to save the temperature data (S13). In this embodiment, the measured temperature data is stored in the temperature storage unit 22 of the RAM 8 every 30 minutes, and the current time is 3 according to the determination in step S13.
When it is the storage time of the measurement data every 0 minutes, it is determined in the next step S14 whether or not the temperature storage unit 22 is full. If there is no free storage area in the temperature storage unit 22,
The temperature data of the address 2 in the temperature storage unit 22 are sequentially shifted to the address 1, the temperature data of the address 3 to the address 2 and the temperature data of the address N + 1 to the address N (S15). As a result, the data at address 1 where the oldest data is stored is erased, the data at addresses 2 to 96 is shifted to the previous address, and new data can be stored at address 96. .

When the shift of the data in the temperature storage unit 22 is completed, the latest temperature data is stored at address 96 of the temperature storage unit 22. At the same time, the date and current time,
It is stored in the date and time storage area 22b at address 96 (S
17). Next, it is determined which temperature range the temperature data measured this time falls into by referring to the temperature / color correspondence table 21 (S18). Further, the range / color correspondence table 21 is referred to check the stored color data corresponding to the temperature range, and the color data is stored in association with the temperature data at address 96 of the temperature storage unit 22 (S19). ).

When the latest temperature data is stored, all the data in the temperature storage unit 22 is read out and each temperature data is displayed in a graph according to the corresponding color data stored (S20). As a result, 96 pieces of temperature data are displayed in the graph display section 9a in the colors set for the temperature ranges to which each temperature data belongs, so that each temperature data falls within which temperature range. You can see at a glance.

For example, by setting the optimum temperature range as the temperature range, the upper limit and the lower limit of the allowable temperature, and setting the color of each temperature range, the data is displayed in the optimum color range from the display color of the data displayed in the graph. It is possible to judge at a glance whether the temperature is within the range, the allowable temperature is within the upper limit, or the upper limit is exceeded.

Next, the latest measurement data is digitally displayed on the temperature display section 9b of the display section 9 (S21), the current time is digitally displayed on the time display section 9c (S22), and the process is terminated.

Next, referring to FIG. 6, a color search process for displaying the temperature range and the temperature data in which the same color is set by designating the color data will be described. First, the color data in the temperature range to be displayed is input (FIG. 6, S31). When the color data is input, the temperature / range correspondence table 21 is referred to search for temperature range data in which the same color data as the input color data is set (S32). Next, the temperature range in which the color data that matches the input color data is set is displayed in the set color (S33). further,
A predetermined number of temperature data in which the same color data as the input color data among the 64 temperature data stored in the temperature storage unit 22 is stored are digitally displayed on the graph display 9a.

FIG. 7B shows an example of the display of the temperature data searched by the color search process described above. In this case, the temperature range in which the same color data as the input color data is set is 30 ° or more and less than 40 °, and the four temperature data within the temperature range are displayed as digital values on the graph display unit 9a. Has been done.

Returning to FIG. 6, it is determined whether or not the undisplayed data remains in the temperature data in the temperature range of the same color data as the input color data (S35). If there is undisplayed temperature data, it is determined whether or not the scroll key is operated next (S36), and if the scroll key is operated, the next predetermined number of temperature data in the same temperature range is determined. Is digitally displayed (S37).

If there is no undisplayed data in the determination in step S35, or if the scroll key is not operated in step S36, the process proceeds to step S38.
It is determined whether the key has been operated. If the END key has not been operated, the process returns to step S35, and the EN
When the D key is operated, the process ends there.

Next, a second embodiment of the present invention, in which the measurement data is color-coded and displayed for each time zone, will be described with reference to the flowchart of FIG. Only the parts different from the first embodiment will be described below.

In the second embodiment, the above-mentioned first embodiment is used.
In the range / color input processing of the above embodiment, the time zone of the measurement time is designated instead of the temperature range.
First, when the user inputs the time zone, the inputted time zone data is temporarily stored in the RAM 8 (FIG. 8, S41).
Next, when the user inputs the display color of the data of the time zone, the similarly input color data is temporarily stored in the RAM 8 (S42). Then, it is determined whether or not the time zone data temporarily stored in the RAM 8 and the time zone data stored in the range / color correspondence table 21 overlap (S4).
3). When the time zone data is duplicated, the time zone data entered later is given priority and the range / color correspondence table 2
The time zone data and color data of 1 are rewritten (S4
4).

In step S43, if the input time zone data does not overlap with the time zone data stored in the range / color table 21 (S43, NO), or after the step S44, after the input priority processing, It is determined whether or not the NEXT key has been operated (S45). When the NEXT key is operated, the process returns to step S41 to repeat the time zone input process, the color designation process and the like. If the NEXT key is operated, the process proceeds to step S46, and it is determined whether or not the END key is operated. END
When the key is operated, the process ends there.

The processing contents for displaying the temperature data in the graph in the second embodiment are basically the same as the processing contents in FIG. 5 of the first embodiment, and are the same as those in FIG. The different point is the processing of steps S18 and S19. In the second embodiment, the range / color correspondence table 21 stores a plurality of time zone data and color data that determines a display color of data whose measurement time falls within the time zone data in association with each other. There is.

Then, in step S18, it is determined which time zone of the plurality of time zone data stored in the range / color correspondence table 21 the data measurement time falls within.
Further, in step S19, the color data stored corresponding to the time zone data to which the measurement time belongs is read from the range / color correspondence table 21, and the color data is stored in the temperature storage unit 22 together with the measured temperature data.

Then, a plurality of temperature data stored in the temperature storage section 22 are displayed in a graph in the colors stored corresponding to the respective temperature data. As a result, the measured temperature data is displayed in different colors for each time zone, so that the temporal change of the temperature data can be understood at a glance.

In the above embodiment, the case where the temperature data is displayed as a graph has been described, but the present invention can also be applied to a case where the data of atmospheric pressure, pulse, velocity, acceleration, etc. is displayed as a graph. Further, the present invention is not limited to the electronic wrist watch described above, and can be applied to a measuring device, a monitoring device, and the like that display measurement data in a graph.

[0038]

According to the present invention, the range and the display color of the data of the range are designated in advance, and the measured data is displayed in a graph in the designated color for each range. You can understand at a glance what is happening.

[Brief description of drawings]

FIG. 1 is a circuit block diagram according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a display unit 9.

3A and 3B are diagrams showing a configuration of a RAM 8. FIG.

FIG. 4 is a flowchart of range / color input processing.

FIG. 5 is a flowchart showing an overall operation according to the exemplary embodiment of the present invention.

FIG. 6 is a flowchart of a color search process.

FIG. 7A is a diagram showing an example of display of a range / color input process, and FIG. 7B is a diagram showing an example of display of a color search process.

FIG. 8 is a flowchart of a range / color input process according to the second embodiment of the present invention.

[Explanation of symbols]

 4 CPU 5 Sensor 9 Display 10 Key input

Claims (5)

[Claims] 1. A range designating means for designating a range of data, a color designating means for designating a display color of the data in the range designated by the range designating means, and a data for the designated range in a designated color. A graph display device comprising a display unit for displaying a graph. 2. The graph display device according to claim 1, wherein the range designating unit can designate a plurality of ranges, and the color designating unit can designate a different color for each of the plurality of ranges. . 3. The graph display device according to claim 1, wherein the data is measurement data of a sensor. 4. A color input means for inputting one of a plurality of colors designated by the color designating means, and digitally displaying only data corresponding to the color input by the color input means. 3. The graph display device according to claim 2, further comprising digital display means. 5. The graph display device according to claim 1, wherein when a color and a range are input, the input range is displayed in the input color.