CN2170505Y

CN2170505Y - Double-strip graph displaying instrument

Info

Publication number: CN2170505Y
Application number: CN 93219595
Authority: CN
Inventors: 王小明; 滕子拓
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-22
Filing date: 1993-07-22
Publication date: 1994-06-29
Anticipated expiration: 2003-07-22

Abstract

The utility model relates to a double-strip graph displaying instrument. Two strip graph displaying instruments are used to jointly display a measured number value, wherein, one of the two strip graph displaying instruments displays the high position of the measured number value, and the other strip graph displaying instrument displays the low position of the measured number value. Each strip graph displaying instrument can display 10 sections for displaying one value of the measured number value, or can display 100 sections for displaying two values of the measured number value. The resolution is higher by the two strip graph displaying instruments. The tiny and continuous variation of the measured number value can be displayed visually.

Description

Double-strip graph displaying instrument

The present invention relates to a kind of instrument and meter and measure the improvement of display structure.

Three kinds of modes are adopted in the demonstration of instrument, instrument at present, and the one, traditional pointer-type demonstration, the one, digital display, moreover be that bar figure shows.Pointer-type shows that belong to simulation shows, by the position of pointer on index dial, reflect measured size, measured continuous variation and the variation formula that becomes.Digital display device is with the measured digital value that converts to, and by the measured size of charactron reflection, the characteristics of digital display maximum are directly perceived, and reliable and stable, diamagnetic, antidetonation.It is by light-emitting diode group slivering figure that bar figure shows, show measured continuous variation and change the formula that becomes, bar figure shows the physical construction that does not have pointer instrument, does not have damping phenomena, has overcome digital display again and can not reflect measured continuous variation and variation tendency.But the hop count of at present general bar figure Displaying Meter luminous point can not be too many, general three, 40 sections, at most also only at 100 sections, so the resolution of general bar figure Displaying Meter is well below read out instrument, measured subtle change can't reflect intuitively, measuring accuracy is also not as the digital instrument height, nearest numeral/bar figure " two demonstration " instrument that occurs, actual is that read out instrument and bar figure Displaying Meter mechanically are assemblied in the meter housing, make whole instrument structure complexity, and since bar figure the section negligible amounts, still can not reflect intuitively measured subtle change and variation tendency.

The utility model is exactly the problem that shows existence at above bar figure, has proposed a kind of double-strip graph display mode.

It is to show a measured numerical value jointly with two rule figure displays that the double-strip graph that the utility model proposes shows, wherein a rule figure display shows measured seniority, another rule figure shows lower-order digit, each rule figure display can be 10 sections, show measured one digit number value, also can be 100 sections, show measured double figures value.What double-strip graph showed is implemented as follows: measured aanalogvoltage is converted to the binary-coded decimal digital quantity by A/D converter, converts decimal number to by 4 lines/10 line code translators again.When a high position or low level bar figure demonstration one digit number, number after the conversion is on the throne to be selected under the effect of signal through the alignment of driver to light-emitting element matrix, the position selects signal to send the line of matrix, make light-emitting component show the numerical value of conversion, when a high position or low level bar figure demonstration two figure places, the numerical value of first conversion is on the throne to be selected under the signal effect, deposit latch in, second transforming numerical is through the alignment of driver to light-emitting element matrix, its numerical value that selects signal to make to deposit in latch send the line of matrix through driver, and luminous matrix has just shown the numerical value of two conversions like this.

The utility model double-strip graph display has outside all advantages of general wall scroll figure demonstration, its resolution is more much higher than the bar figure Displaying Meter of general wall scroll, the double-strip graph display resolution can reach 1%～0.005% by different array modes, can match in excellence or beauty with read out instrument.Because high resolution is arranged, double-strip graph shows can demonstrate measured continuous subtle change more intuitively, can demonstrate measured variation tendency more subtly.

The synoptic diagram that Fig. 1 shows for double-strip graph, and as Figure of abstract.

Fig. 2 is 100 sections for high-order bar figure, shows hundred and ten, and low level bar figure is 10 sections, shows an electrical schematic diagram of the double-strip graph display of position.

The utility model is described in further detail below in conjunction with accompanying drawing.

The bar-graph display on the left side is formed by 100 sections among the figure, there is 0～1000 scale on the next door, as the indication indicating value is 750 on scheming, and promptly measured tens is 5, hundred figure places are 7, can demonstrate measured value by the bar-graph display on the left side is 750, is accurate to ten, and resolution has only 1%, the bar-graph display on the right is formed by 10 sections, there is 0～10 scale on the next door, as the indication indicating value is 6 on scheming, and promptly measured units is 6.Two combine reading like this, and measured value is 756, are accurate to a position, and resolution brings up to 0.1%.

Fig. 2 is the electrical schematic diagram that double-strip graph shown in Figure 1 shows.

Aanalogvoltage measured among Fig. 2 is imported by the Vi end of A/D converter (1), binary-coded decimal after the A/D conversion converts decimal system output to by 4 lines/10 line code translators (2) again, and decimal system output selects signal gating to remove to drive respectively two rule figure displays by the position of A/D converter (1) again.

The low level bar-graph display is made of 10 sections light emitting diode (7) in this example, show one digit number---individual position, each negative electrode of light emitting diode connects the output terminal of row driver (3), and the input of row driver (3) links to each other with the output terminal of 4 lines/10 line code translators (2), and signal DS is selected in the position of individual position ₁Control Driver (4) is at DS ₁Valid period driver (4) gets the public anode of light emitting diode (7), be high level, the output live end of row driver (3) is a low level simultaneously, at this moment corresponding light emitting diode is lighted, and the numeral on the indicated scale of the light emitting diode of being lighted is measured units.

High-order bar-graph display constitutes 100 sections by 10 * 10 dot matrix LEDs (8) in this example, shows two figure places---and ten and hundred, the alignment of dot matrix LEDs (8) is also received the output of driver (3).The output of 4 lines/10 line code translators (2) connects the input of latch (5), selects signal DS by hundred position ₃The decimal number that gets hundred is latched by latch (5), and receives the signal input part of line driver (6), selects signal DS ten position ₂In the time of effectively, ten numerical value appears on the alignment, and corresponding alignment becomes low level, simultaneously DS ₂Open line driver (6), allow hundred numerical value appear on the line, corresponding line becomes high level, lights at the line of high level and the light emitting diode of low level alignment intersection, and the numeral on the indicated scale of the light emitting diode of being lighted is measured ten and hundred.

Claims

1, a kind of bar-graph display that is used for the instrument and meter demonstration, form by A/D converter, driver and light-emitting component, it is characterized in that forming a high position and the low level of bar-graph display by two groups of light-emitting element matrixs, the one digit number of A/D converter output is according to the latch that deposits in when selecting signal on the throne, the A/D converter then another one data of output is delivered to the alignment of light-emitting element matrix through driver, and this position selects signal to make data that deposit latch in deliver to the line of light-emitting element matrix through driving.

2, bar-graph display according to claim 1 is characterized in that the data of A/D converter output also convert decimal number to through code translator.