JPH0249122A - Display method for measured weight and its allowable upper and lower limit values - Google Patents

Abstract

PURPOSE:To accurately identify reference weight, etc. by supplying a reference position determined so as to correspond to the reference weight and a display signal supplied to a display element of a position corresponding to a deviation of allowable upper and lower limits by the number of times being different from that for other display element. CONSTITUTION:When allowable upper and lower limit values and a weighing signal which is brought to digital conversion are supplied to a control part 6, the control part 6 converts them to a ratio to weighing. Subsequently, by synchronizing with an output of a counter in the control part 6, a display signal is supplied to a digit signal driver 12 and a segment signal driver 14, and actual weight of an article to be weighed is brought to digital display on a numeral display tube 18. In such a state, even if a segment for displaying a rate of the allowable upper and lower limit values and a segment for displaying a rate of weight are superposed, the display signal is supplied to its superposed segment two times, its duty ratio becomes larger than a duty ratio of other segment, the luminance becomes larger than the luminance of other segment, and it can be discriminated enough that the rate of the allowable upper and lower limit values is being displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for displaying, for example, the weight of an article to be weighed, an allowable upper limit value, an allowable lower limit value, etc. on a bar graph type display on a limit scale.

Conventionally, limit scales have a barb-foot type weight display that displays the weight of the item to be weighed by lighting up all display elements from a reference position to a position corresponding to the weight, and a permissible upper limit value and permissible lower limit value. Some devices were provided with separate bar graph-type tolerance range indicators that were displayed by lighting up corresponding light-emitting elements. In such a limit scale, the weight display and the tolerance display are compared at the same time to determine whether an item to be weighed is overweight, appropriate, or underweight, which tends to lead to misjudgment. This problem also occurs when the deviation of the weight of the item to be weighed from the reference weight and the allowable upper/lower limit deviation are displayed on two displays; This problem can be solved by using the same display. An example of such a device that displays a plurality of input signals on the same display device is the one disclosed in Japanese Utility Model Publication No. 58-216. In a bar graph display device, a first display element consisting of a plurality of continuous display elements blanks and displays the magnitude of a first input signal by sandwiching a non-lighting display element with a light display element. The magnitude of the second input signal is displayed on the display section, and the magnitude of the second input signal is displayed on the first input signal.
Even if the display section and the second display section overlap, the second display section has higher brightness, so they can be clearly identified.However, in this technology, for example, the first input signal is If the second input signal is set to the lower limit of allowable value, the second display will have high brightness even when the first input signal is not input, that is, even when they do not overlap, so the power consumption will be large. However, there was a problem in that the life of the display device was correspondingly shortened.

An object of the present invention is to provide a display method that solves the above problems.

The present invention will be explained below based on one embodiment shown in the drawings. The method of this invention is carried out using an apparatus such as that shown in FIG. In FIG. 1, reference numeral 2 denotes a weight detection section, which is configured to generate a weighing signal corresponding to the weight of the article to be weighed. This measurement signal is converted into a digital signal by the A/D converter 4 and input to the controller 6. In this control section 6, an allowable upper limit value and an allowable lower limit value are also set by the keyboard section 8. The control unit 6 is configured with a CPU% ROM, RAM 1/2, etc., and based on the digitally converted weighing signal, the allowable upper limit value, and the allowable lower limit value, the digit signal driver 12 in the display unit 10 and A display signal is supplied to the segment signal driver 14. This display signal is provided in synchronization with the cycling output of a 9-ary counter set to R, AM (see FIG. 3, 5).

The display unit 10 includes a digit signal driver 12, a segment signal driver 14, a bar graph display tube 16, and a numeric display tube 18. The numerical display tube 18 digitally displays the weight of the article to be weighed. The bar graph display tube 16 displays, for example, the measured value and the ratio of the allowable upper and lower limits to the weighing value, and as shown in FIG.
, and each of these grids GO to G9 has 10 segments. That is, this bar graph display tube 16 has a total of 100 segments, and these segments are displayed continuously in the horizontal direction.

Among these segments, the 1st, 21st, 41st,
The 61st and 81st ones are connected to the terminal Sob, and the 11th, 31st, 51st, 71st, and 91st ones are also connected to the terminal Sla. Further, the 10th, 30th, 50th, 70th, and 90th ones are also connected to the terminal Sob, and the 20th, 40th, 60th, 80th, and 100th ones are also connected to the terminal Soa.

Further, the second, 12th, 22nd, 32nd, 42nd, 52nd, 62nd, 72nd, 82nd, and 92nd ones are also connected in parallel to the terminal S2. The remaining segments are similarly connected to terminals S3 to S9. A display signal is supplied from the digit signal driver 12 to the grids GO to G9, and each terminal Soa, Sob, 5eaS
Sob.

Display signals are supplied from the segment signal driver 14 to S2 to S9. Each segment lights up when a display signal is supplied to both the grid to which it belongs and the terminal.

By this method, for example, the weight ratio 54 to the weighed amount,
When displaying the same permissible lower limit value ratio 27 and the same permissible upper limit value ratio 83, it is performed as follows. Control section 6
When the allowable upper and lower limit values and the digitally converted measurement signal are supplied to the control section 6, the control section 6 converts these into a ratio to the weighed amount. Then, the digit signal driver 12 and the segment signal driver 14 are synchronized with the counter output in the control unit 6 shown in FIGS. 3(a) to 3(e).
A display signal is supplied to the numeric display tube 18 to digitally display the actual weight of the article to be weighed.

Then, in synchronization with the counter signal shown in FIG. 3(f),
The control section 6 supplies display signals to the grids Go to G5 via the digit signal driver 12, and at the same time supplies display signals to the terminals Sea, Sob, and S2 to S4 via the segment signal driver 14. 12-14.22-24.32-34.42-44.
The segments 52 to 54.10.30.50.11.31.51 are lit.

Then, in synchronization with the signal of the counter shown in FIG. Soa
, 5 to 9.1 by supplying display signals to Ss to Ss.
5 to 19.25 to 29.35 to 39.45 to 4
9. Light up the segment 20.40.1121.41.

Next, in synchronization with the counter signal shown in FIG. A display signal is supplied to S7 to light the segment 27.

Furthermore, in synchronization with the output of the counter shown in FIG. 3(i),
A display signal is supplied to the grid G8 via the digit signal driver 12, and a display signal is supplied to the terminal S3 via the segment signal dophi t<-14, thereby lighting up the 83 segments. Thereafter, by sequentially repeating this, the bar graph display tube 16 displays a weight ratio of 54 and a permissible upper limit value ratio of 83.
, the allowable lower limit ratio 27 is displayed.

Moreover, in this method, even if the segment displaying the allowable upper/lower limit ratio and the segment displaying the weight ratio overlap, the overlapping segment, the 27th segment in this example, is shown in Figure 3 (2), cQ ) The display signal is supplied twice in synchronization with the signal shown in ), and the duty ratio is larger than that of the other segments to which the display signal is supplied, and the brightness is higher than that of the other segments that are lit. It can be clearly identified that the upper and lower limit ratios are being displayed.

In the above embodiment, the bar graph display displays the weight ratio to the weighed weight and the permissible upper and lower limit ratios, but it is also possible to display the actual weight of each item, or to display the deviation of the weight of the article to be weighed from the standard weight, and the permissible limit value. The upper and lower limit deviations or their respective ratios to the weighing amount may be displayed. In this case, the deviation can be displayed in two ways: the first method is to light up the leftmost segment, that is, the segment that displays the minimum displayable deviation, to the segment corresponding to the deviation, and the first method is to set a standard that corresponds to 0 deviation. A second method may be considered in which the segment corresponding to the deviation from the position is lit. In this second method, in order to clarify the reference position, it is desirable to blink the segment at the reference position. Furthermore, although the allowable upper and lower limit ratios are displayed after the weight ratios are displayed, the weight ratios may be displayed after the allowable upper and lower limit ratios are displayed first.

Further, in order to more clearly recognize the permissible upper/lower limit ratio and the permissible upper/lower limit deviation, the segment displaying the permissible upper/lower limit ratio may be configured to blink. Furthermore, although a bar graph type display is used, one in which a plurality of light emitting diodes are arranged in succession can also be used.

As described above, according to the display method of the present invention, the signal is supplied to the display element at the reference position determined to correspond to the deviation 0 (reference weight) and the position corresponding to the allowable upper/lower limit deviation (allowable upper/lower limit value). Since the display signal is supplied at a different number of times than the display signals supplied to other display elements, one display device displays the protrusion l of the article relative to the reference weight, the reference weight, and the allowable upper and lower limits. However, the reference weight and allowable upper and lower limits can be clearly identified. Furthermore, the reference weight and the allowable two lower limits (
Since there is no need to increase the magnitude of the display signal supplied to the directly corresponding display element, the display device can be made more expensive.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a device used to implement the display method according to the present invention, FIG. 2 is a schematic diagram of a bar graph type display device used in the display method according to the present invention, and FIG. It is a time chart of each display signal. 12... Digit signal driver 14... Segment signal driver 16... Bar graph type display.

Claims (1)

[Claims] (1) In a display device that has a plurality of display elements arranged in a straight line corresponding to each weight, and these display elements are lit for a period when a display signal is supplied, the actual weight of the article and from this position to the position corresponding to the weight immediately before the reference weight, or from the position corresponding to the weight immediately after the reference weight to the position corresponding to the actual weight, respectively. A process of repeatedly supplying a signal at a predetermined duty ratio and a predetermined number of times, and supplying the signal to the display element located at a position corresponding to the reference weight and the allowable upper and lower limits of the article at a number of times different from the above process. A method of displaying the measured weight and its permissible upper and lower limits, including the process of repeating the above steps.