JPS60149928A - Charge display scale - Google Patents

Abstract

PURPOSE:To simplify the operation of an integrated measurement by displaying the weight and price of goods loaded anew while the total weight and total price of all goods added cumulatively by the total key operation. CONSTITUTION:Measured data digitized is inputted and memorized and it is judged whether or not a change exceeding specified counts exists between the measured data previously inputted and memorized and that inputted and memorized at present. When there is any change in the measured data, counts equivalent to the total weight of goods loaded are calculated to determine counts equivalent to the net weight of the goods loaded. Then, the counts equivalent to the net is converted in terms of gram and written into a weight display register to calculate the price. Then, the results are written into a price display register.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement in a price scale that calculates and displays weight, unit price, and price.

<Prior art and its problems> For example, when weighing multiple types of meat and mixing them together for grinding, or when selling different types of candy by weight, the weight and price of each product and their When you need the total price and total weight of , conventionally, each product is placed on and unloaded from a scale, the weight and price of each product are determined individually, and then each product is grouped together to calculate the total price and weight. The method used was to collect the data separately. However, with this method, it takes time and effort to weigh each product by loading and unloading it, so it is possible to add products to the scale without displaying the weight and price of each product. There was a desire for a scale that could also display the following.

<Purpose of the Invention> This invention was developed in response to such a request, and it is possible to display the weight and price of each product as it is added to the scale, and also to display the total of all the added products. The purpose is to provide a new price scale that can also display price and total weight.

<Structure of the Invention> According to the present invention, when the loading key is pressed, the total weight and total price of all loaded products are calculated and stored, the display returns to the unloaded state, and when a new product is added, the corresponding product is The weight and price of all the added products are calculated and displayed, and when the user repeats these operations and finally presses the total key, the total weight and price of all the added items are calculated and displayed. For details, see the addition means for cumulatively adding display prices,
A weight addition means that cumulatively adds the displayed weight in response to the cumulative addition, an addition key that commands the cumulative addition, and a total weight that is cumulatively added by operating the addition key from the weight of all loaded products. Equipped with calculation means for calculating the weight and price of newly added products by subtraction, and a total key for commanding display of the total weight and total price of all the products that have been cumulatively added, the weigher can weigh different types of products. Each time the amount is increased, the weight and price of the newly added product is displayed, and the total weight and price of all the products cumulatively added are displayed by operating the total key.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

<Configuration of Embodiment> Fig. 1 shows a front view of the external appearance of an embodiment of the present invention, in which 1 is a scale body, 2 is a weighing pan, 3 is a weight display section, 4 is a unit price display section, and 5 is a scale body. A price display section, 6 a key input section consisting of a numeric keypad, function keys, etc., and 7 an indicator light to indicate when taring is in progress.

FIG. 2 is a plan view of the key manual unit 6, in which 61 is a zero key for adjusting the zero point, 62 is a numeric keypad, 63 is a tare key;
4 is a clear key, 65 is an addition key that commands cumulative addition of product weights and product prices, and 66 is a total key that commands the display section 3.5 to display the total weight and total price of each product. Moreover, when this total key 66 is pressed twice, each of the above-mentioned total values is cleared.

FIG. 3 is a block diagram showing a schematic configuration of the control section of this embodiment, where A is a weight detection section consisting of a load cell, etc., B is an amplification section that amplifies the detected weight signal, and C is an amplified analog signal. An A/D converter that converts D into a digital signal.
is a display means including each display section 3.4.5, E is a microcomputer that controls the whole scale, and F is a key manual section.

The microcomputer E also includes an addition means E1 for cumulatively adding prices, a weight addition means E2 for cumulatively adding weights in response to the cumulative addition, and a weight addition means E2 for cumulatively adding weights in response to cumulative additions, and calculating the weight of all products before addition from the weight of all products after addition. Calculating means E3 is provided for calculating the newly added product weight and one price by subtraction.

<Operations of the Embodiment> FIG. 4 is a flowchart showing an example of the operating procedure of this embodiment. Here, for example, when the weighing weight is 6 kg, the minimum display unit of weight is in the lower range (0 kg to 3 kg). An example will be described in which a range-switchable scale is used in which the minimum display unit is 2 g in the upper range (3 kg to 6 kg).

First, when the power is turned on, the microcomputer E executes various initial settings in step 1.

This initial setting includes the initial load of the scale in the unloaded state (
This includes the storage of the zero point (hereinafter referred to as the zero point) and the zero clearing process of various registers, which will be described later.

After this process is completed, in step 2 it is determined whether there is a conversion end signal output from the A/D converter C, and as long as there is no end signal, the loop process from step 2 to step 3 is repeated and the process ends. If there is a signal, the process moves to the weighing mode from step 4 onwards.

In the weighing mode, first, in step 4, the digitally converted weighing data is input and stored, and in the next step 5, the weighing data that was previously input and stored (the first time is the weighing data input and stored in step 1, and from next time on, it is stored in step 4). It is determined whether there is a change of more than a predetermined number of counts between the input and stored measurement data) and the current input and storage measurement data. If there is a change, the process moves to step 7 and subsequent steps; if there is no change, a stability flag is set in step 6, and the process returns to step 2 again. This stability flag is an indicator of the stationary stability of the scale, and only when this flag is set, tare weight subtraction, stack addition, etc. can be performed.

When there is a change in the weighing data, it is necessary to monitor the weighing status of the scale, so first, in step 7, the stability flag is lowered, and in step 8, the total weight of the loaded items (products, tares, etc.) is The corresponding count number is calculated, and in the subsequent step 9, the count number corresponding to the net weight of the loaded product is calculated. This step 9 is the total weight of the loaded products (
This corresponds to the calculation means E3 which calculates the newly added product weight by subtracting the total type M (net total) cumulatively added by operating the add-on key from the total weight (total weight - total tare weight). Incidentally, when no additional addition is performed, the net total at step 9 is zero, and when no tare subtraction is performed, the tare at step 9 is zero.

Next, in step 10, it is determined whether the count number corresponding to the total weight is in the lower range region or the upper range region,
If it is in the upper range region, the net weight is rounded to the upper range mode in step 11. That is, for example, when the total weight including tare is 3111 g and the net weight is 111 g, the net weight is rounded to a count corresponding to either 110 g or 112 g.

Next, in step 12, the count number corresponding to the net is converted into duram units, the converted net weight is written in the weight display register, and in the following step 13, the net weight is multiplied by the unit price to calculate the price, and further, in step 14 Then, the above price is written into the price display register and the process returns to step 2 again.

The values loaded into the weight display register and the price display register are then displayed on the predetermined display section 3.5 at regular intervals through the procedure shown in flowchart 1 in Fig. 7. It has become.

Therefore, unless the contents of the weight display register and price display register are changed, the displayed weight and price remain constant.

When there is no change in the weighing data, there is no need to change the display of weight, etc. in that state, so the process from step 7 onwards is passed and the loop process from step 2 to step 6 is repeated.

FIG. 5 is a flowchart 1 to 1 showing an example of the operation procedure of the main part of the key processing routine in step 3 of FIG.
Step 21 corresponds to the above-mentioned addition means E1 which cumulatively adds the display (ilIi case), and step 22 corresponds to the above-mentioned weight addition means E2 which cumulatively adds the display weight in response to the cumulative addition.

In this key processing routine, first, in step 15, the key ON signal output by the key press is checked, and if there is no key ON signal, the process returns to step 2 shown in FIG. Next, check which key is being pressed, if any.

If the tare key 63 is pressed, step 16
The process then proceeds to step 17, and if the stability flag is set, tare subtraction is executed in step 18.

Of course, in the initial state, the net total in step 18 is zero, so at this time the total weight of the loaded articles is written as a tare in the tare register.

On the other hand, instead of pressing the tare key 63, the accumulating key 6
If the key is 5, the process moves from step 19 to step 20, and if the stability flag is set, the price (
The price written in the price display register) is cumulatively added, and in the subsequent step 22, the weight M (net weight written in the weight display register) is cumulatively added. Note that the method of using the addition key 65 will be described in detail later.

On the other hand, if the sum key 66 is pressed instead of the product increase key 65, the process moves from step 23 to step 25, where the contents of the price total register (price total value) are written to the price display register, and in the subsequent step 26. Convert the contents of the net total register to Durham units, write the value (net total weight) to the weight display register, and press the next total key 66.
The process enters a waiting state in which the process of step 27 is repeated until the key is pressed. However, even at this time, interrupt processing such as weight display is executed, so the net total weight written in the weight display register is displayed on the weight display section 3, and the total price value written in the price display register is displayed on the price display section. 5.

Next, when the total key 66 is pressed again, step 2
7 to step 28, the contents of the line total register, net total register, and unit price register are cleared, and the process returns to step 2 shown in FIG.

On the other hand, if the total key 66 is not pressed, step 23
Shift to step 24 and press the zero key 61 and numeric keypad 6.
2. Execute any key operation such as the clear key 64, and return to step 2 again.

Next, key operations when performing additional weighing and related operating procedures will be explained.

Now, the unit price is 100 yen, the net weight is Ag, and the tare weight is Ag.
Product X, unit price 200 yen, net weight Bg, tare weight bg, Y product, unit price 3゜0 yen, net weight Cg.
An example will be explained in which the weight and price of each product are calculated while sequentially adding X products with a tare weight of cg to the scale.

Note that, in the following description, all counts are replaced with weights (g) for convenience of explanation.

First, place the tare of product X on the scale. The total weight at this time is ag, and the contents of the net total register (net total) and the contents of the tare register (tare total) are both zero.

Therefore, the net calculated in step 9 is ag, which is written into the weight display register and ag is displayed on the weight display section 3.

Next, when the tare key 63 is pressed, this ag is written in the tare register in step 18, and as a result, the tare total in step 9 becomes ag, the net calculated in step 9 becomes zero, and the weight display section 3 0g is displayed.

Next, load product X on the scale and set the unit price of 100 yen. The total weight at this time is (a+A>g, the net total is zero, and the tare total is ag. Therefore, the net weight calculated in step 10 is Ag, and this is written to the weight display register and Ag is The weight is displayed on the weight display section 3.

Further, in step 14, the price A yen is calculated, this is written into the price display register, and the price A yen is displayed on the price display section 5.

Next, the additional key 65 is pressed. Then step 21
At step 22, the price A yen is written to the price total register, and then at step 22, the net Ag is written to the net total register. As a result, the net total in step 9 becomes Ag and the tare total becomes ag, and as a result, the calculated value in step 9 becomes zero, which is written into the weight display register and zero g is displayed on the weight display section 3. Further, the price calculated in step 13 is also zero yen, and similarly, zero yen is displayed on the price display section 5.

Next, place the tare of product Y on the scale. The total weight 9 at this time is (a
-t-A+b)g, and the contents of the net total register (net total) are Ag, and the contents of the tare register (tare total)
is ag. Therefore, the calculated value in step 9 at this time is bg, which is then transferred to the weight display section 3 through the same procedure.
will be displayed.

Next, the user presses the tare key 63 to execute tare weight subtraction. Then, the content of the tare register becomes (a + b), and 0 g is displayed on the weight display section 3.

Next, load product Y on the scale and set the unit price of 200 yen. The total weight at this time is (a + A + b + B > g - net total is Ag
, the tare total is (a+b)g.

Therefore, the calculated value at step 9 at this time is Bg, and the calculated value at step 13 is 2XB yen, which are displayed on the weight display section 3 and the price display 9155, respectively.

Next, the additional key 65 is pressed. Then step 21
At step 22, (A-1-2XB) yen is written to the price sum register, and then at step 22, (A+B)g is written to the net sum register. As a result, the calculated values in step 9 and step I3 become zero, and the values in the weight display section 3 and price display section 5 become zero.

Thereafter, tare the Z product in the same way, then weigh the Z product and press the add key 65.The contents of the tare register will be (a+b+c)g, the contents of the net total register will be (A+B+C)g, and the total price. The contents of the register are (A+
2XB+3XC) yen, and zero is displayed on the weight display section 3 and the price list receiving section 5, respectively.

Next, when the total key 66 is pressed, the contents of the price total register are written in the price display register in step 25, and the contents of the net total register are written in the weight display register in the following step 26. As a result, the weight display g1;
3 displays (A+B+C)g, and the price display section 5 displays (A+2XB+3XC) yen. Furthermore, at this time, even if all the products are taken off the scale, the display values are not changed because the process in step 27 is repeated.

Next, when the total key 66 is pressed again, the process moves to step 28, where the contents of the price total register and the net total register are cleared. At this time, if all products are still loaded on the scale, the total weight in step 9 is (a+A+b+B+
c0C)g, net total is 0, tare total is (a+b+c)
4, and the calculated value in step 9 is (A + B 10)
Therefore, (A+B+C)g is displayed on the weight display section 3. On the other hand, when all products including tare are removed from the scale, the gross weight in step 9 is zero, the net total is also zero, and the tare total is (a
+b + c) g, and the calculated value is -(a +
b, + c, ) g, so the M strain display section 3 shows -(
a+b+c)g is displayed.

In order to return the minus display to zero display, the scale should be unloaded and the tare key 63 should be pressed when the scale is stationary and stable. In addition, although the case where the additional amount δ1 is performed while taring and taring is explained above, it goes without saying that when taring is not required, only one operation of the additional addition key 65 is sufficient.

FIG. 6 shows the addition key 65, the price addition key 67 (see FIG. 2) that commands cumulative addition of prices, and the switch that commands whether or not to perform cumulative addition of net weight at the same time when in the price addition mode. This is a flowchart illustrating an example of a key processing routine of another embodiment configured with a mode switching key 68 (see FIG. 2), in which it is determined in step 19 whether or not the price addition key 67 has been pressed. point and step 2
5 in that it is determined whether the mode switching key is ON between step 1 and step 22 (step 29) and between step 25 and step 26 (step 30). In this way, press the additional key 65 to “2”.
By separating the keys into two keys, when you want to cumulatively add prices, you can do so by operating only the price addition key 67, and when you want to perform additional weighing, you can use the mode switching key. By turning 68 ON, it is possible to carry out additional weighing as described above.

In addition, the mode switching key 68 may be configured with a snap switch or the like, or the key is turned on with the first key operation.
(Configured so that the second 100-operation turns the key OFF)
If so, it is possible to omit key operations each time when carrying out additional weighing.

Figure 7 is a flowchart showing an example of a subroutine for displaying weight, unit price, price, etc. In this case, each time there is an interrupt command, the contents of any display register such as weight, unit price, price, etc. are converted into a character pattern. and deal with this. The weight, unit price, price, etc. are outputted to one of the display units 3.4.5 and displayed in order for each interrupt.

In addition, as shown in the flowchart mentioned above, with this scale,
Even in the multi-range system, it is possible to tare up to the scale M (upper scale area), so it is also possible to perform the additional weighing described above up to weighing.

<Effects of the Invention> As explained above, according to the present invention, it is possible to display the weight and price of each product while adding more products to the scale, and furthermore, it is possible to display the total price and total weight of all the added products. This allows you to display the weight and price of each product, as well as their total value, without having to place each product on and off the scale. Weighing operations such as weighing assorted candy can be made very simple.Furthermore, with this invention, in the range-switchable scale, tare can be subtracted until the weighing value is reached, so it is not possible to carry out additional weighing until the weighing value is reached. There are advantages that can be achieved.

[Brief explanation of drawings]

Fig. 1 is an external front view of one embodiment of the present invention, Fig. 2 is a front view of the key manpower section of the above embodiment, Fig. 3 is a block diagram showing the schematic configuration of the above embodiment, and Fig. 4 is a 5 is a flowchart showing an example of the main part of the key processing subroutine of FIG. 4; FIG. 6 is a flowchart showing an example of the main part of the key processing subroutine of another embodiment. The flowchart shown in FIG. 7 is a flowchart 1 showing an example of a subroutine for display processing. 3-----1 Weight display section 5-1---Price display section E
1-Addition means E2-Weight addition means E3-Calculation means 65--One addition key 66-=-Total key 67--Price addition key-6B ---
Mode switching key Applicant: Ishida Kouki Seisakusho Co., Ltd. Agent: Patent attorney Ko Men Takeuchi Figure 1 Figure 2 Figure 3 Figure 4

Claims (3)

[Claims] (1) In a rate scale that calculates and displays the weight, unit price, and price of loaded products, etc., there is an addition means for cumulatively adding the price, and a weight addition means for cumulatively adding the weight in response to the cumulative addition. , an add-on key that commands their cumulative addition, and a calculation means that calculates the weight and price of the newly added product by subtracting the total weight accumulated by operating the add-on key from the weight of all loaded products. and,
It is equipped with a total key that commands the display of the total weight and total price of all the cumulatively added products, and each time different types of products are added to the scale, the weight and price of the newly added product are displayed, A price scale characterized by displaying the total weight and total price of all products cumulatively added by operating a total key. (2) The toll scale as set forth in claim 1, wherein the toll scale is a range-switchable toll scale in which the minimum weight display unit automatically switches depending on the total weight of the loaded baggage. Scales. (3) The addition key is characterized by comprising a price addition key that commands cumulative addition of prices, and a mode switching key that commands switching whether or not to perform cumulative addition of weight at the same time in the price addition mode. A fee scale according to claim 1.