JPS58144717A - Electronic counting scale - Google Patents

Abstract

PURPOSE:To facilitate the counting of the number of pieces, by automatically obtaining the unit weight by a CPU in synchronization with a weight stabilizing signal formed by weight signals corresponding to a specified number of materials to be measured, which are outputted from a weight detector when a sample is measured. CONSTITUTION:The output of the weight detector 1 and the output of an input device 2, to which the unit weight and the like are inputted, are inputted into a CPU3. The CPU3 reads the weight signals generated by the detector 1 by a plurality of times and compares the read data with each another. When the difference in data becomes the value within a specified range, the stabilization of the measuring operation of detector 1 is detected. This is called a weight stability detecting function of the CPU. A specified number switching device 6 sets the specified number for obtaining the unit weight. The unit weight is obtained from the specified number signal from the device 6 and a sample weight signal when the read out weight is stabilized in synchronization with the weight stabilizing signal. This is called a unit weight computing function of the CPU.

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, when a predetermined number of objects to be weighed are placed on a measuring instrument as a sample measurement, a weight signal corresponding to the objects to be weighed is generated by a weight detector. An electronic counting scale that, in synchronization with a weight stability signal, automatically calculates "weight ÷ specified quantity" in its central processing unit to obtain a unit weight, and uses this unit weight to obtain the number of pieces corresponding to an arbitrary weight tK. It is related to.

In conventional electronic counting scales, if the unit weight of the 11fl+ weighing object is known, the unit weight of 1wt can be entered using the numeric keypad, or the unit weight can be stored in the memory in advance, and the preset corresponding to the memo IJ- can be input. A method of reading and using the data by inputting a key was adopted, but with this method, variations in unit weight due to the lot of the object to be weighed (for example, one section of the object to be weighed that has been processed and finished), The unit weight varies depending on the environment (e.g. temperature and humidity), the life of the unit weight depends on the material (e.g. the material used), and changes over time (e.g. evaporation of contained moisture).

Due to changes in the unit weight (abrasion caused by contact between objects) and other factors, using the 11 known unit weights would result in errors in number counting.

9. If the unit weight of the object to be weighed is unknown, manually enter the desired sample quantity each time you weigh it, and operate the 77 keys such as the unit weight setting key and number setting key. Then, calculate the unit i amount each time and then count the number of pieces.

In this method, the change in unit weight is positive 1.
1, the number of pieces cannot be counted correctly, resulting in incorrect weighing.

Weighing Nine KI [#9 has the drawbacks of requiring many key operations, lack of operability, and quickness.

In view of the above-mentioned circumstances, the weight stability signal KI8' is created by the weight signal corresponding to the prescribed quantity of objects to be needled, which is output from the weight detector during V-embru stitching. In anticipation,
The unit weight is automatically determined by the central processing unit, and the number of pieces is always counted according to the accurate unit weight.The operation is simple and accurate.
11 is provided with an electronic counting scale that can count the number of pieces.

The specified quantity switching device is a loader switch.

The specified quantity may be stored in a freely adjustable f memory using a numeric keypad in a switch that can be switched from the outside, such as on an operating part such as a slide switch or numeric keypad switch, or it may be used in a counting scale. It is also optional to use a semi-fixed switch such as a diode changeover switch that cannot be switched externally and is provided with an electronic circuit IK.

Further, when measuring a sample, the following various methods can be used to determine the unit weight using a specified number of samples.

0) Place a specified number of objects to be weighed on the scale, and calculate the unit weight based on the weight stability signal at this time.

(z) Determine the unit weight based on the weight stability signal when an arbitrary quantity is weighed (6) and then a specified quantity of objects to be weighed is removed.

■Place any quantity other than the specified quantity on the scale.

The unit weight is determined based on the weight stability signal when a specified number of objects to be weighed are further placed on top of the weight.

An embodiment of the present invention will be explained below.

FIG.
There is a weight detector that generates a large electric signal corresponding to the weight in which a transducer is installed, and a numeric keypad that inputs known unit weights.2. Unit weight 1 reset key 2b or function key 2e? Input device costing $111 2. The weight detector 1. A central processing unit 3 (hereinafter referred to as EPTL) that performs various calculations based on output signals from the input device 2;
Digitally displays f-J- such as weight, number of unit weights, tare weight, etc. as arithmetic results calculated in step 13, H11 section, and in-display for zero points, sample shortage, unit weight recalculation, etc. A display unit 4 is provided, which includes a sign display unit 4, and a printing device 5 which prints a part or all of the data of the calculation result in 1!1 as a numerical value, a bar code, or 0/cR capital letters. There is.

To explain in detail the various calculations in the epw 5, the weight signal generated by the east weight detector 1 is narrowed down into the ept 13 multiple times, the read data is compared, and the absolute value of the difference between these data is determined. A weight stability detection function such as detecting that the weight detector 10 stitch amount operation is stable when it falls within a certain range or becomes zero, and a regulation number 1 switching device 6 to set a regulation quantity to find the unit weight. A unit weight calculation function that calculates the unit weight in synchronization with the weight stability signal from the specified quantity signal and the read sample weight signal when the weight is stable, and an operation that confirms that the unit weight calculation is completed. Completion signal generation function Weight l when measuring 0 pieces
This is a piece counting machine that calculates the number of pieces by the unit weight and K.

An example of the operation of this electric counting scale will be described when counting the number of printed photographs according to the flowchart shown in Figure @j.

The specified quantity is set using a specified quantity switching device 6 using a rotary unit or the like as shown in the figures ＠tc and gJ. (
In this embodiment, 5 is set. ) Then step 1 (8
1); Place 5 photographs (service version) of the prescribed quantity of objects to be weighed on a weight detector (10) on a weighing pan (1 shown), and measure the total weight of 11 pieces. (The weight at this time is /10 t.) Step 72 (fh); The weight signal at this time indicates that the epi
Sample measurement is continued until the weight detector 15 detects that the weight is stable, and the epu 5 detects that the weight is stable. Proceed to step 3 (S,)K.

Step! ! (8m); Based on the weight signal (/109) when the weight stability signal is detected and the specified quantity value (sheets) read from the specified quantity switching device 6, the formula is calculated as follows: "Weight CI 01) ÷ Standard quantity (5 sheets)" ) = unit weight (4tJy*)'', the calculation result is displayed on the wheat support section 4, and the process moves to step 4 (8a)K.

Step 4 (S4): Generate a computation completion signal indicating that the unit weight calculation in S3 has been completed, and prepare the unit mold quantity computation status of EPA3 in the number calculation state 111g.

Step 5 (Sg): Perform a weighing operation to determine the number of photos for the service version. Place an arbitrary number of rounded photos on a weighing pan. (The weight at this time is /θtO f.) Step 6 (Ss ): From the weight signal (10109) corresponding to the true weight of an arbitrary number of sheets determined by Sm and the unit weight (return power consideration) obtained in S3 above, "weight @ (10y, op) ÷ Unit weight (2≠f) = number of pieces (4
! j sheets) The number of sheets j is counted to find the number +1 sheet corresponding to the object to be weighed.

This calculation result is displayed on the display WS4 Function A type of print key for key 2 - press operation, double weighing items Weight stability signal during number measurement Kr111 period to print these data. It is printed by the device 6.

Stella 77 (By)? Until the clear key (old key), which is a type of phantom key 2e, is pressed, the unit weight determined by sg is used to calculate the number of objects to be weighed with the same unit weight, and the weighing process is repeated. When the key is pressed, the process moves to step 8 (8,1)K.

In step 8 (Ss), the unit weight obtained in step S44 is cleared to complete the number calculation state and prepare for the first unit weight calculation state.

These calculation states are repeated to perform the next unit weight calculation and piece count calculation.

The above-mentioned J1 verification operation to determine whether the specified quantity of Kugou weighing items weighed at the time of sample weighing at 81 and 711'' is correct is performed as follows.

al: Overlay data of the object to be weighed at the time of sample weighing (/U01) az: l [Weight data at the time of subtraction of 7 items from the object to be weighed (
51F) n: Specified quantity (j pieces), then (al-
az) Weigh the object to be weighed using the formula IIK in 11 in It is sufficient to perform a calculation check using the fact that it is equal to the weight data.

If the actual number of objects to be temporarily weighed during sample measurement differs from the value selected by the specified quantity switching device.

Both formulas do not hold, and the specified quantity is set Ki when calculating the nest weight.
You can check that there is a

Furthermore, if you wish to use the unit weight data obtained in S3 later, you can temporarily store it in a preset memory and use it.

This operation is first performed using preset key 2b on input device 2.
If you select and press one of the 1 Reset - keys, if unit weight data is stored in advance in the memory corresponding to this selected preset, it will be read out as a unit weight. ,! This unit weight data will be displayed on the display unit 4.If you continue the weighing operation, the unit weight data will be 8. , S.

At this point, if the function middle - 2, mouth - on the Kugata device 2 is pressed, the 9 memory corresponding to this preset key is cleared and the unit weight conversion form 'flK Become.

Next is 81 as a new Sumburu measurement. S,,ss
After the computation is performed to obtain a new unit weight and the computation completion signal of 684 is generated, pressing the preset key that was initially suppressed again causes the menu 4 corresponding to this preset key to be pressed.
13- is rewritten to a new unit weight data 4-.

Next, when this preset key is pressed, this new unit weight data is successively displayed and becomes available for use.

As the specified quantity of the specified quantity switching device, if the unit weight of the object to be weighed is sufficiently larger than the minimum weight of the scale at one time, not including the difference in number of pieces, then the specified quantity may be "1". , unit weight calculation becomes even easier and faster1
It becomes convenient.

In this embodiment, an electronic counting scale equipped with one weight detector has been described; however, the number of nine weight detectors is not limited to one, and may include a plurality of weight detectors.
') may be an electronic counting scale with multiple weight detectors, such as sensitive weight detection for sample weighing.

When the computation completion signal is generated in S4, it is optional to not only switch the operational status of the counting scale from the unit weight data to the piece count computation data, but also to notify the operator by an alarm means such as a buzzer during a sign lamp.

Also, a part or all of the data of the calculation result is expressed as a numerical value.

Printing device 6 that prints barcodes, OCR characters, etc., regardless of model such as label printer, receipt printer, barcode printer, etc., and integrated Kll with electronic counting scale.
It is up to you whether you choose to create one or combine them separately.

In addition, the method for detecting zero weight stability was carried out by Chuokairisosetsu's arithmetic processing in this example, but it is not limited to this arithmetic processing, and other arithmetic sensing methods may be used. In addition, a detection method may be adopted in which a hardware path is provided outside the central solar panel 11.

As explained above, in the present invention, when a predetermined number of objects to be weighed are placed on the weighing scale IIK as a sample weighing, zero is created by the weight signal corresponding to the object to be weighed which is outputted from the weight detector. 9.When the weight stability signal Kpi1 is reached, the central sensing device automatically calculates "weight ÷ specified quantity" to find the unit weight, and this unit weight is used to find the number of pieces corresponding to any weight. Therefore, each time you weigh, you can simply place the specified amount of the object to be weighed on the weighing pan without operating the function keys such as during weighing, setting the number of pieces, and setting the weight of the first piece. The unit weight of the object to be measured can be automatically determined, preventing operational errors such as key operations, and the unit weight can be easily and quickly determined.

Also, the unit weight of attt items varies depending on the lot.

Variations in loaded weight due to materials, variations in unit weight due to environment, and variations in unit weight due to changes in preferential treatment can be corrected at any time by simply placing the sample to be weighed on the weighing pan. Accurate number counting can be performed quickly and accurately.

Thus, the purpose of the invention is achieved.

[Brief explanation of drawings]

FIG. IE1 is a block diagram of an electronic counting scale showing an embodiment of the present invention. FIG. 2 is a flowchart explaining the operation of the electronic counting scale. FIG. 3 is an implementation diagram of the specified quantity switching device. 1--One charge detector, 2. -Human powered equipment. 3----- Central processing unit, 4- Display section. 5---1 Printing snow, 6---Specified quantity switching device. Figure 2 Figure 1

Claims (1)

[Scope of Claims] /) II A weight detector for detecting the weight of a scale fixture, an input device for inputting a unit weight, the weight detected by the weight detector, the 90 unit weight of 7 normal weighing objects, and K Therefore, 1
In an electronic counting scale equipped with a central processing unit that calculates the number of objects to be weighed, in synchronization with a weight stability signal created by a weight signal corresponding to a specified number of objects to be weighed output from the weight detector. , a nine-electron counting scale, characterized in that the above-mentioned central II & weighing device automatically calculates "weight ÷ specified quantity" to determine the unit weight. f) As described in claim 1 above, the apparatus further comprises a prescribed quantity switching device for inputting a plurality of prescribed quantities to the central processing unit. Electronic counting scale. 3) When the unit weight calculation of "weight ÷ specified quantity" is completed, if a specified quantity is removed or added to the specified quantity of objects being weighed, the specified quantity becomes equal to the specified value of the specified quantity switching device. 3. An electronic counting scale according to claim 1, further comprising means for preventing said dispersion. lI) When the unit weight calculation of "weight ÷ specified quantity" is completed, operate the preset key on the input device to input the calculation result of the unit weight, and the object to be weighed will be stored in the preset memory corresponding to #presetting -. 2. The electronic counting scale according to claim 1, further comprising means for storing data such as a code V number and a tare weight. j) The said central II& Automatically calculates Kr weight ÷ specified quantity j and generates a switching signal to switch the measurement form ■ to piece count calculation form - due to an error in unit weight calculation based on the calculation completion signal when the unit weight has been determined and/or requests an alarm. An electronic counting scale according to IIs Paragraph 1. 1) *The electronic counting scale according to claim 1, characterized in that the electronic needle counting scale is connected to a printing device and prints out seven or all of the calculation results of the electronic counting scale.