JPS6348596A - Bar graph display - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a bar graph display method for various meters that electrically display measured quantities.

(Prior Art) A conventional display method of displaying an electrical analog quantity in the form of a bar graph reads changes in the quantity in the bar graph using a fixed scale.

(Problem to be Solved by the Invention) For this reason, when multiple scales are used to read various measured quantities using the same bar graph display, there is a drawback that it takes time to select a scale and read the value. There's one. In addition, the degree of division of the bar graph is limited to flO from a cost and technical point of view, and there is a limit to the display, which is more than the analysis of par. Because it does not give degrees, it was considered unsuitable when displaying degrees is required.

This invention solves the above-mentioned problems with the conventional bar graph display, and has the advantages of the bar graph display. The purpose is to make the bar graph display useful for various meters by firing two shots (such as being easy to use, not being affected by A-notes, and having a fast speed). It is something to do.

(Means to solve the problem) This A color according to the upper dα1 (Rinma, A/'
A digital signal is input to the Kai-Jun circuit through the D-transformer back circuit, and the arithmetic circuit calculates it together with the input data input from the 6111 standard key interface circuit to create display data. The gist of the present invention is to input the measured quantity into a display device having a scale display section and a bar graph display section, and to display the measured quantity as a bar graph.

This invention will be explained below with reference to Examples.

In the figure, reference numeral 1 denotes an integrating circuit into which an electrical analog quantity is input. 2
is a comparison circuit, 3 is a counting circuit, and these circuits allow A/
A D conversion circuit is configured.

This A,/'Jul conversion circuit operates under the control of the control circuit 4, and is inputted as an electrical analog quantity! J
Convert fixed desires from analog to digital signals.

Further, a control circuit 1 performs control such as timing adjustment for each circuit block based on the output from the oscillation circuit 5.

The digital signal is input to an arithmetic circuit (CPU) 7 via an interface circuit 6. This performance 71 circuit 7 performs various calculations based on the demetal signal (Lennon time signal, function [1 report) inputted from the key interface circuit 8, converts the input data into display data, and outputs it. , the control circuit 1 is controlled via the interface circuit 9 according to the need for the funk information inputted to the arithmetic circuit 7.

The above display data is output as a digital signal to a digital display circuit and a bar graph display circuit each having a broadcast configuration.
0, 11, display data recorder +2, 13, decode display drive circuit 1.4, 15 are connected in two order, one decode display drive circuit 14
is connected to the scale display section 17 of the display device 16, and the other decode display drive circuit 15 is connected to the bar graph display section 18 of the display device 16.

The A/D conversion circuit and the bar graph display circuit are connected via the interface circuits 6 and 11, and the measured quantity can be passed through the circuit 9 and displayed as a bar graph. ing.

Among the above circuits, an arithmetic circuit 7, an interface circuit 6,
9, 10, 11, the display data recorder 12, and the decoding display drive circuit 14 are designed for one-chip microcontroller only.
, and other circuits can be integrated into a single chip LSI.

The scale display section 17 of the display device 16 has a scale 17a for each range, a number 1 scale 171), and a symbol 17.
Drowsiness display means such as C are stored. These display means include liquid crystals, light emitting diodes, fluorescence, plasma, and the like.

Further, the number of segments of the display panel 18a of the bar graph display section 18 is a multiple of 10 or 2 with respect to the full scale scale 17a, and usually 100 or 200 segments is preferable. The scale display can display numbers from 0 to 9 depending on the number of 7 segments, and the number of digits displayed for one scale matches the maximum number of digits of the scale.

The display of the scale according to each range is as shown in Figure 2.
～Determine Sn and units, and write these in advance in a table.
, C1 person ifl. When the display scale function is rx + 1 (including 0), Lenzki human power data □ 1 change 1
In this case, the scale is marked S+- from the table.
Take out the 6s and display the scale. Alternatively, perform the following calculation and display it at full scale in the table.

Slnee・Sn S2- - Italy Sn Sn Also, one of the symbols 17C above is displayed depending on the unit on the table.

In the par display in the normal display mode, concave constant data originally has a resolution that can be enlarged and displayed, so this is set as
As shown in Figure 3, the number of full-scale segments of the par to display is SG, the magnification rate in the enlargement mode is N, and the number of display scales is n.In the normal mode, the number of full-scale segments of the input data The force/ra reduction ratio that is displayed is SG I o14 XO= N-SG 1).

If the input data is X with respect to the full scale XO (X≦Xo), segment B of the par will be displayed.
X is rounded to 1/H.

B2C-+0.5] 2) If the full scale of the scale displayed at this time is Sn, the other scales are displayed as follows.

S.

S □ Ω 2.5n S2 □ The data 9x read from the par and scale thus displayed is 5x=Sn.--.3)G.

Also, in the normal mode, a predetermined scale range (hereinafter referred to as a window) can be enlarged and displayed by switching the mode manually using keys, as shown in FIG.

Full Scale En
M
), becomes 1.

Condition N6M that the range when enlarging the window does not exceed segment a3G Also, from the relationship with the scale position, each condition above the condition for matching the window 1 division (lower limit) with the scale position is satisfied. Let's decide M as follows: When expanding, all segments SG should be filled with one song.Mo:KohaM:N.

Q'ko (house,
That's fine.

do.

However, since the second position must match the scale graduation, the window position is determined by the following process.

O One shift of the scale position during enlargement is a multiple of □, so nφN A positive integer t that is closest to Ll or □ -N choose L2 or □ is the left 14 value of the window.

jN ・・・・・・・・・・・・・・・5) From this, the par display value X11 at the time of enlargement can be found as XM:XL.・・・・・・・・・・・・
...6) Also, change the scale display as shown below.

Scale 1 direct DL- or □n, N D1 = (t + i) □ nφN Dα = (t4 - α) □ -N This - ζ Value S read by the displayed par and scale
R is SR= Dr, -! -XM・□ O knee S n ・・・・・・・・・・・・7) O becomes.

Furthermore, the condition for t is things Romono etc., can be freely selected.

The above window is displayed in enlarged mode.
It is possible to increase the constant jii j multid in the addition direction or the decrease direction. The minimum amount of movement is one block between the scale marks. Move to input data X! When the JJ amount is W, IV-□·β β is an integer from 1 to α that determines the amount of movement. β: 1.r Display data after window movement - data This window moves by a constant f, + Hf, ) each time the input key is pressed once, but if the input key is kept pressed, the window continues to move repeatedly.

(Effects of the Invention) As described above, the present invention provides a display device having a bar graph divided into a large number of segments, a corresponding display-changeable scale scale, and a unit symbol, and a display device having various display devices. Since the display is equipped with a circuit for drowsily switching or enlarging the display and a bar graph display, it can be used for displaying various meters.

In addition, the scale that matches the input data is selectively displayed, making it easy to see, and by enlarging the display, the display accuracy is greatly improved even though it is a single graph display. have

[Brief explanation of the drawing]

The drawings show the bar graph display method according to the present invention, and FIG. 1 is a block diagram of the device, FIG. 2 is an explanatory diagram of scale display, FIG. 3 is an explanatory diagram of par display in normal display mode, and FIG. 4 is an explanatory diagram of bar graph display. is an explanatory diagram of enlarged display. 1...Integrator circuit 2...Comparison circuit 3
... Counting circuit 4 ... Control circuit 6
, 8 , 9.10.11... Interface circuit 7... Arithmetic circuit 12, 13... Display data renostar 11, 15
... Decode display drive circuit 16 ... Bar graph display device 17 ... Scale display section I8 ... Bar graph display section 9 Figure 6 – Input

Claims (1)

[Claims] The measured quantity is input as a digital signal to an arithmetic circuit using an A/D conversion circuit, and the arithmetic circuit calculates the measured quantity together with the input data input from the key interface circuit to create display data. A bar graph display method, characterized in that the measured quantity is displayed as a bar graph by inputting it into a display device having a scale display section and a bar graph display section.