JPS6156445B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a counting scale that counts and displays the number of articles based on the weight obtained by weighing.

When counting the number of articles using a counting scale, the operating procedure differs depending on whether the weight (unit weight) of each article is known in advance or not. For example, if the weight of each item is known, the total weight of the items is measured, the weight of each item is entered using a key, and the total number of items is determined by dividing the total weight by unit weight. In addition, if the weight per item is not known, take an arbitrary number from the total number of items, weigh that arbitrary number of items, enter the number using the key, and calculate the unit by dividing the arbitrary weight by the arbitrary number. First find the weight. Then, by measuring the total weight of the articles, the total number of articles is determined by dividing the total weight by unit weight.

In such a counting scale, key inputs for unit weight and number of items can be clearly distinguished and checked, and when the total number of items to be weighed is displayed by counting process, even if the numeric keypad is operated incorrectly, the display will not change. It is hoped that it will not change. Further, if it is possible to accumulate the total number of objects calculated by the counting process, check the accumulated number, etc., the function as a counting scale can be expanded, so it is desired to have such a function. Furthermore, it is desired that key operations be made easier.

This invention was made to satisfy these demands, and allows the key input of unit weight and number of items to be clearly distinguished and confirmed, and also improves the reliability of operation when displaying the total number of items to be weighed. Furthermore, by having a cumulative total function, work efficiency can be improved.
Moreover, it is an object of the present invention to provide a counting scale that can improve operability.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 shows the external appearance, 1 is the scale body, 2
is a display device. A scale stand 3 coupled to a load cell mechanism of the scale section, which will be described later, is provided on the top of the scale body 1, and a keyboard 4 is provided on the front part. The display device 2 is installed upright on one side of the scale body 1, and has a scale weight display 5, a unit weight display 6, a number display 7, a zero point lamp 8, and a tare lamp on the front thereof. 9, a set lamp 10, and an addition lamp 11 are provided. The keyboard 4
As shown in FIG.
unit weight key 14, "SET" set key 1
5. Addition key 16 for "M+", subtraction key 17 for "M-", call key 18 for "MR", memory clear key 19 for "MC", tare key 20 for "Wind", A tare setting key 21 is provided.

FIG. 3 is a block diagram showing a control circuit, in which 31 is a central processing unit (hereinafter referred to as CPU), 32 is a read-only memory (hereinafter referred to as ROM) in which program data is stored, and 33 is each part of the CPU 31. Random access memory (hereinafter referred to as RAM) is a random access memory (hereinafter referred to as RAM) in which various memories for storing data and setting flags used for control are formed. Said
The CPU 31 controls each part based on the program data in the ROM 32, and takes in weight data from the scale part 34 via a data selector 35, and also takes in key inputs from the keyboard 4 from the key matrix circuit 36. . Further, status data is taken in from the status input circuit 37 via the data selector 38. The weighing section 34 outputs a voltage signal proportional to the weight of the article placed on the weighing platform 3 from the load cell, amplifies the load cell output with an amplifier, and then outputs count data corresponding to the voltage signal with an A/D converter. , and the count data is output as weight data. The status input circuit 37 is designed to output status data corresponding to various externally set status switches. Also, the CPU3
1 controls a digit coder 39 and a segment decoder 40 based on the program data in the ROM 32 to control a display section 41 consisting of the scale weight display 5, unit weight display 6, and number display 7, and a data latch circuit 42. The lamp lighting circuit 43 consisting of the lamps 8, 9, 10, and 11 is controlled by controlling the lamps. Said
RAM33 has a numeric keypad memory ITEM, unit weight memory UNIW, and weighing weight memory as shown in Figure 4.
WEIG, total memory TOTAL, walking memory WORK, unit weight count memory UNIWC, true value weight memory MTRU, net weight memory MNET,
Tare weight memory TARE, zero point memory MZER, gross weight memory MCO, intake weight data memory M ₁ ~
_M8 , unit weight key flag SAWKY・F, set key flag SET・F, memory clear key flag
ADCKY・F, call key flag MRKY・F, subtraction key flag SBKY・F, addition key flag ADKY・
F, numeric keypad flag 10K・F, etc. are provided as the main memory.

FIG. 5 is a flowchart showing a main processing routine performed by the CPU 31, and various controls will be described below based on this flowchart. When the power is turned on, the I/
The processing of O clear, RAM clear, reading of the status from the status input 37, and display scan are performed in sequence. In the display scan processing, each digit of each display 5, 6, 7 of the display section 41 is sequentially scanned from 0 to 9 to check the segment, and during this scan, weight data is taken in from the scale section 34. The weight data is flickered and the resulting data is stored as zero point data.
I am trying to set it to MZER. When such initial processing is completed, the loading of weight data from the weighing section 34 is started. The loading of this weight data is carried out in the same manner as in the display scan processing described above, and is carried out by sequentially shifting the loaded weight data memories M ₁ to M ₈ of the RAM 33.
That is, the contents of memories M ₁ to _{M 7} are sequentially shifted to M ₂ to _{M 8} , and the remaining weight data of the weighing section 34 is transferred to memory M _{1 .}
We try to do this by incorporating Next, flicker processing is performed. This flickering process is also performed in the same manner as the display scanning process described above, and the true value of the weight is determined by comparing the weight data stored in each of the captured weight data memories _M1 to _M8 . That's what I do. In this flickering process, the obtained true value weight data is stored in the true value weight memory MTRU. Next, a key-in is checked, and if there is a key-in, key processing to be described later is performed. If there is no key-in, the contents of MZER are subtracted from the contents of MTRU, and the result is stored in the gross weight memory MCO. Next, perform auto-zero processing, and if the MCO contents are within the auto-zero range, this MCO
Set the contents of to MZER as a new zero point.
Next, the contents of the tare memory TARE are subtracted from the contents of MCO to obtain the net weight. Then, the net weight is stored in the net weight memory MNET. Next, addition key flag ADKY・F, subtraction key flag
Checks SBKY・F, call key flag MRKY・F, and memory clear key flag ADCKY.F, and if any of these flags is set to “1”, the contents of the numeric keypad memory ITEM are displayed on the number display 7.
Finally, a lamp set process is performed, and the routine returns to the above-mentioned import of weight data from the weighing section 34. At this time, the scale weight display 5 and the unit weight display 6 are turned off. Also ADKY.F,
If "1" is not set in any of SBKY.F, MRKY.F, and ADCKY.F, then check the unit weight key flag SAWKY・F, and if this flag is set to "1", press the numeric keypad. memory
Displaying the contents of ITEM on the unit weight display 6,
Finally, a lamp set process is performed and the routine returns to the above-described import of weight data from the weighing section 34. At this time, the scale weight display 5 and the number display 7 are turned off. Furthermore, if “1” is not set in SAWKY・F, then set key flag
Check SET・F. And SET・F=1
If so, divide the contents of the net weight memory MNET by the contents of the unit weight count memory UNIWC, and store the result in the numeric keypad memory ITEM. In this case, ITEM is set to zero when UNIWC=0. Also, if SET・F≠1, the contents of MNET are divided by the contents of ITEM, and the result is stored in UNIWC. In this case ITEM=
When it is 0, UNIWC is set to zero.
Next, the contents of MNET are converted to the weight unit of the scale (grams), for example, with 5 counts per scale, and stored in the weighing weight memory WEIG, and the contents of UNIWC are also converted to the weight unit of the scale (grams), with 5 counts per scale. Store in weight memory UNIW. Next, the scale weight memory
The contents of WEIG are displayed on the scale weight display 5, the contents of the unit weight memory UNIW are displayed on the unit weight display 6, and the contents of the numeric keypad memory ITEM are displayed on the number display 7. Finally, a lamp set process is performed and the routine returns to receiving the weight data from the weighing section 34 described above. In the lamp set process described above, the zero point lamp 8 is turned on when MCO=0, and the tare setting lamp 9 is turned on when TARE≠0.
lights up, and when SET・F=1, set lamp 1
0 lights up, and when TCTAL≠0, addition lamp 11
The process is to turn on the light.

6 to 13 show the processing of each key on the keyboard 4, which is the processing performed when key-in is determined in the main processing of FIG. 5.

FIG. 6 shows the processing of the addition key 16. When the addition key 16 is input, the addition key flag is first flagged.
ADKY・F, subtraction key flag SBKY・F, recall key flag MRKY・F, memory clear key flag
Check ADCKY・F sequentially. If any of these key flags is set to "1", this key input is disabled. If "1" is not set in any of the above key flags, then the set key flag SET.F is checked. If SET・F≠1, this key input is disabled. If SET・F=1, the addition key flag ADKY・F is set to “1” and the contents of the numeric keypad memory ITEM are accumulated in the total memory TOTAL.

FIG. 7 shows the processing of the subtraction key 17. When the subtraction key 17 is input, the unit weight key flag is first flagged.
Check SAWKY・F. And SAWKY・
If F=1, this key input is disabled. Also
If SAWKY・F≠1, then add key flag
Check ADKY・F, call key flag MRKY・F, memory clear key flag ADCKY・F, and subtraction key flag SBKY・F in sequence. If any of these key flags is set to "1", this key input is disabled. If "1" is not set in any of these key flags, "1" is set in the subtraction key flag SBKY.F, and the contents of the numeric keypad memory ITEM are subtracted from the total memory TOTAL.

FIG. 8 shows the processing of the call key 18. When the call key 18 is input, the addition key flag ADKY is activated.
F, subtraction key flag SBKY・F, call key flag
MRKY・F, memory clear key flag ADCKY・
Check F sequentially. If any of these key flags is set to "1", this key input is disabled. Also, if none of these key flags is set to "1", the call key flag MRKY・F is set to "1", and the total memory
Recall the contents of TOTAL to the numeric keypad memory ITEM.

FIG. 9 shows the processing of the memory clear key 19,
When this memory clear key 19 is input, the addition key flag ADKY・F and the subtraction key flag SBKY・
F. Check the call key flag MRKY・F in sequence. And any one of these key flags is “1”
If set, this key input will be disabled.
Also, if “1” is not set in any of these key flags, the memory clear key flag
Set ADCKY・F to “1” and total memory
Recall the contents of TOTAL to the numeric keypad memory ITEM and then clear the total memory TOTAL.

FIG. 10 shows the processing of the numeric keypad 12. When there is an input from the numeric keypad 12, the set key flag is first set.
Check SET・F. And SET・F=1
If so, disable this key input. Also
If SET・F≠1, then numeric keypad flag
Check 10K・F. If 10K・F≠1, it is determined that this is the first numeric key input, and the numeric keypad memory ITEM is cleared, and the numeric keypad flag is
Set “1” to 10K・F. Then, the key input is stored in the numeric keypad memory ITEM. Also 10K・F
If = 1, key input is immediately stored in numeric keypad memory.
Store in ITEM. And finally the addition key flag
ADKY・F, subtraction key flag SBKY・F, recall key MRKY・F, memory clear key flag
Performs ADCKY・F reset processing.

FIG. 11 shows the processing of the unit weight key 14. When the unit weight key 14 is input, the set key flag SET・F and the unit weight key flag SAWKY・F are set.
Check sequentially. If any of these key flags is set to "1", this key input is disabled. Also, if none of these key flags is set to "1", the unit weight key flag SAWKY・F is set to "1", addition key flag ADKY・F, subtraction key flag SBKY・F, call key flag MRKY・F, memory Performs reset processing of clear key flag ADCKY・F. And finally clear the numeric keypad memory ITEM.

FIG. 12 shows the processing of the set key 15. When the set key 15 is input, the addition key flag is
ADKY・F, subtraction key flag SBKY・F, recall key flag MRKY・F, memory clear key flag
Check ADCKY・F and set key flag SET・F in sequence. If any of these key flags is set to "1", this key input is disabled. If "1" is not set in any of these key flags, then the unit weight key flag SAWKY.F is checked. and
If SAWKY・F=1, numeric keypad memory
ITEM contents unit weight counting memory UNIWC
, and then set the set key flag SET・F to “1”. Also, if SAWKY・F≠1, the set key flag SET・F is immediately set to “1”. And further unit weight key flag
Reset SAWKY・F and numeric keypad memory ITEM
Clear.

FIG. 13 shows the processing of the erase key 13, and when the erase key 13 is input, the unit weight key flag is
Check SAWKY・F and numeric keypad memory ITEM. And SAWKY・F=1 and ITEM=0
Reset SAWKY・F when . Other than that
SAWKY・F reset processing is not performed. Next, addition key flag ADKY・F, subtraction key flag
Check SBKY・F, call key flag MRKY・F, and memory clear key flag ADCKY・F in sequence. And each key flag is “1”
Set key flag only when is not set
Reset SET・F. Next is ADKY・F,
Reset SBKY・F, MRKY・F, ADCKY・F and clear numeric keypad memory ITEM.

With such a configuration, for example, if the weight of one article, that is, the unit weight is known, the total number of articles is placed on the scale platform 3, and the unit weight key 14, numeric keypad 12, and set key 15 are pressed on the keyboard 4. Just operate it. That is, when the total number of articles is placed on the scale table 3, the tared net total weight is displayed on the scale weight display 5. Next, when the unit weight key 14 is operated, "1" is set in SAWKY.F. In this state, when the unit weight of the part is entered using the numeric keypad 12, the unit weight is stored in the numeric keypad memory ITEM. The contents of this numeric keypad memory ITEM are then displayed on the unit weight display 6. Furthermore, when the unit weight key 14 is operated, the scale weight display 5 is turned off. When a unit weight is input using the numeric keypad 12, only the unit weight display 6 displays the unit weight, and the other indicators 5 and 7 are turned off. Therefore, there is no risk of mistaking what is being input using the numeric keypad as, for example, the total weight, and the input unit weight can be confirmed easily and reliably. If you operate the set key 15 in this state, the contents of the numeric keypad memory ITEM will be transferred to the unit weight count memory UNIWC, and "1" will be set in SET・F.
SAWKY・F is reset and the numeric keypad memory ITEM is cleared. Then, in the main processing, the net total weight is divided by the unit weight of UNIWC, the total number is calculated, and the number is stored in the numeric keypad memory.
The total weight, unit weight, and total number of items are stored in ITEM, and each display of weighed weight, unit weight, and number of items 5, 6,
7 are displayed respectively. Further, by operating the set key 15, the set lamp 10 is turned on. In this way, the total number of parts weighed can be confirmed. In this state, SET・F=1, and numeric keypad 1
2 and unit weight key 14 are disabled.
In this state, if you further operate the addition key 16, the total number of ITEMs in the numeric keypad memory will be added to the total memory.
Totaled in TOTAL.

For example, if you do not know the unit weight of an item, first place an arbitrary number of items, for example n items, on the scale stand 3, input n items using the numeric keypad 12, and then operate the set key 15 to display the total number of items on the scale stand 3. All you have to do is post. In other words, when n items are placed on the scale stand 3, n
The total weight of each piece is displayed on the scale weight display 5. In this state, when you input n items using the numeric keypad 12, the numeric key input is stored in the numeric keypad memory ITEM, the unit weight is calculated by dividing the total weight of n items by n items, and the unit weight is stored in the unit weight count memory UNIWC. . Then, the contents of the numeric keypad memory ITEM are displayed on the number display 7, and the contents of UNIWC are converted to the weight unit of the scale and the unit weight display 6 is displayed.
will be displayed. The number inputted in this way can be confirmed on the number display 7, and the unit weight of the article can be confirmed on the unit weight display 6. When the set key 15 is operated in this state, "1" is set in SET.F and ITEM is cleared. From now on, input using the numeric keypad 12 and unit weight key 14 will be disabled. Finally, when the total number of pieces is placed on the scale stand 3, the total weight is displayed on the scale weight display 5, and the total number is calculated by dividing the total weight by unit weight, and is stored in ITEM and displayed on the number display 7. Ru. In this way, the total number of pieces relative to the total weight can be confirmed by the display.
Even in this case, by operating the addition key 16, the total number at that time can be accumulated in the total memory TOTAL.

In this way, the addition key 16 cannot be operated until the set key 15 is operated to calculate the number of pieces, but the subtraction key 17 can always be operated unless the unit weight key 14 is operated. The call key 18 and memory clear key 19 can always be operated without any conditions. Of course, this double operation of each key is prohibited. For example, for the subtraction key 17, the numeric keypad 12
When the number to be subtracted is input and operated, the number to be subtracted is displayed on the number display 7, and the number is subtracted from the total memory TOTAL. Also, when the call key 18 is operated, the contents of the total memory TOTAL will be changed to the numeric keypad memory ITEM.
is called and displayed on the number display 7. In this way, the accumulated total number can be easily checked only by operating the call key 18. Furthermore, when the memory clear key 19 is operated, the total memory
The contents of TOTAL are recalled to the numeric keypad memory ITEM and displayed on the number display 7, and the total memory
TOTAL is cleared. That is, even if the total memory is cleared, the number display 7 continues to display the contents of the total memory before being cleared. When the number of pieces is displayed using the addition key 16, subtraction key 17, call key 18, and memory clear key 19, the scale weight display 5 and the unit weight display 6
Since the light goes out, the number of pieces can be checked reliably and easily. Further, when the addition key 16, subtraction key 17, recall key 18, and memory clear key 19 are operated after the set key 15 is operated, when the erase key 13 is operated, ADKY・F,
SBKY.F, MRKY.F, and ADCKY.F are reset, and ITEM is cleared, returning to the state immediately after the set key 15 was operated, that is, before each of the keys 16 to 19 was operated. In this case SET・F
= 1 is maintained, so even if ITEM is cleared, the number of MNET÷UNIWC is immediately stored in that ITEM. If the erase key 13 is operated again in this state, SET.F is reset and the display returns to the initial state, that is, the weighed weight display state. In this case, SET・
When F=0, clearing ITEM will also clear UNIWC. Further, when the subtraction key 17, call key 18, and memory clear key 19 are operated without operating the set key 15, the initial state can be immediately returned by operating the erase key 13 once. In this case as well, ITEM=0
UNIWC=0. Also, at this time, erase key 13
Even if you do not operate , when you operate the numeric keypad 12 or unit weight key 14 for the next counting process, you can immediately return to the initial state and accept the key input. For example, when there is an input from the numeric keypad 12, the numeric keypad memory ITEM is cleared, the numeric keypad flag 10K・F is set, and the numeric keypad input is stored in ITEM, ADKY・F, SBKY・F,
MRKY・F and ADCKY・F are reset. Also, when the unit weight key 14 is input, the unit weight key flag SAWKY・F is set, and ADKY・F,
SBKY・F, MRKY・F, ADCKY・F are reset and ITEM is cleared. And by clearing ITEM with any key input
UNIWC will now be cleared. In this way, without operating the set key 15, the subtraction key 17,
When the call key 18 or the memory clear key 19 is operated, the operation of the erase key 13 can be omitted to return the scale state to the initial state of scale weight display, so that operability can be improved.

Further, in order to cancel the input of the unit weight key 14 in the counting process, the erase key 13 may be operated. That is, by operating the erase key 13, SAWKY.F can be reset. Also, unit weight key 14
and numeric keypad 12 to store unit weight in numeric keypad memory
If you want to clear the contents of ITEM after storing it in ITEM, you only need to operate the erase key 13 once, and if you want to cancel the unit weight setting itself, erase key 1
You just need to perform step 3 three times in a row. That is, the first operation of the erase key 13 clears the numeric keypad memory ITEM, and the second operation of the erase key 13 resets the unit weight key flag SAWKY.F.

When a unit weight is entered using the unit weight key 14 and numeric keypad 12 in this way, the unit weight display 6
Only the display operates, the other indicators 5 and 7 go off,
In addition, when the number of pieces is input using the numeric keypad 12, the scale weight display 5, unit weight display 6, and number display 7 will display the scale weight, unit weight, and number of pieces, respectively. You can clearly distinguish and check whether you are inputting the information by the display state. Moreover, when inputting the unit weight, the scale weight display 5 and the number display 7
The unit weight can be easily checked because the light goes out. Furthermore, while the total number of articles is being displayed using the set key 15, unless the erase key 13 is operated, the numeric keypad 12 and unit weight key 14 will be displayed.
Since input is disabled and processing by key input is prohibited, there is no possibility that the display will change even if the numeric keypad 12 or unit weight key 14 is operated incorrectly, and the reliability of operation can be improved. . Further, the calculated total number can be accumulated in the total memory, and the contents of the total memory can be recalled and displayed or cleared at any time, improving work efficiency. Furthermore, if the subtraction key 17, recall key 18, or memory clear key 19 is operated other than when the total number of articles is displayed, that is, when the set key 15 is not operated, the unit weight will be displayed directly without operating the erase key 13. The keys 14 and numeric keypad 12 can be operated, and the erasure key operation can be omitted, improving operability.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is an external view, Fig. 2 is a keyboard diagram, Fig. 3 is a block diagram showing a control circuit, and Fig. 4 is a diagram showing the main memory configuration of RAM. , FIG. 5 is a flowchart showing the main processing of the CPU, and FIGS. 6 to 13 are flowcharts showing the key processing of the CPU based on each key input on the keyboard. 1... Scale body, 2... Display device, 4... Keyboard, 5... Scale weight display, 6... Unit weight display, 7... Number display, 12... Numeric keypad, 13
...Erase key, 14...Unit weight key, 15...Set key, 16...Addition key, 18...Recall key, 19...Memory clear key, 31...Central processing unit (CPU), 32... Read-only memory (ROM), 33...Random access memory (RAM), ITEM...Numeric keypad memory, UNIWC...
...Unit weight count memory, SAWKY/F...Unit weight key flag, SET/F...Set key flag, ADCKY/F...Memory clear key flag, MRKY/F...Recall key flag, ADKY/
F...Additional key flag.

Claims (1)

[Claims] 1. A scale unit that weighs articles and outputs weight data, a scale weight memory that stores the weight data from this scale unit, a scale weight display that displays the contents of this scale weight memory, and a unit weight display. a display device equipped with a unit and a number display, a numeric keypad for inputting the value of the number of pieces or unit weight, a numeric keypad memory for storing the numeric keystroke input, a unit weight key for specifying the numeric keystroke input as a unit weight, and a unit weight key for specifying the numeric keystroke input as a unit weight. If a numeric key entry is made without specifying a unit weight using the weight key, the contents of the numeric keypad memory are displayed on the number display, the contents of the weighed weight memory are divided by the contents of the numeric keypad memory, and the result is displayed as the unit weight. means for storing it in a memory and displaying it on the unit weight display, and displaying the contents of the numeric keypad memory on the unit weight display when a unit weight is specified by the unit weight key and an input is made using the numeric keypad; A means for controlling the lighting of the scale weight display and the number display, and when the unit weight display is operated while displaying the contents of the unit weight memory, the contents of the scale weight memory are immediately displayed in the unit. By starting the calculation of division by the contents of the weight memory and operating the unit weight display while displaying the contents of the numeric keypad memory, the contents of the numeric keypad memory are transferred to the unit weight memory and then the above A set key that starts the calculation of dividing the contents of the scale weight memory by the contents of the unit weight memory, and a set key that stores the calculation result of this set key in the numeric keypad memory and displays it on the number display, and also operates the numeric keypad and unit weight key. means for disabling input; an addition key for accumulating the contents of the first memory in a total memory when operated while the calculation result by the set key is displayed on the number display; and the total memory; A call key reads out the contents of the numeric keypad memory and displays it on the number display, a memory clear key clears the contents of the total memory, and a memory clear key clears the numeric keypad memory and unit weight memory and displays the numeric keypad and unit weight. A counter comprising: an erase key for canceling a state in which key input is disabled; and means for clearing the numeric keypad memory and unit weight memory when key input from the numeric keypad or unit weight key is accepted. Scales.