JPS59165195A - Money counter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a money counter.

Until now, devices that count large quantities of coins and banknotes of the same denomination have been widely used, but the mechanism is complicated.

There were disadvantages such as ■ long counting time, ■ high price, and ■ loud noise.

The purpose of the present invention is to shorten the recording time by utilizing microcomputer technology, which has recently been applied in various fields.
The object of the present invention is to provide a money counter that can be lowered in price and reduced in noise.

The present invention measures the average weight per coin for each of multiple types of denominations in advance, and based on this average weight, the taught denomination, and the total weight of the multiple types of money to be counted, The total amount can be calculated by performing predetermined arithmetic processing.

The present invention will be explained below with reference to the drawings.

FIG. 1 shows the configuration of the present invention in a block diagram.

The money receiver converts the total weight of money 9 to be counted in a container 1 into an electric signal using a load cell 2 and takes it out.

This electrical signal is amplified by an amplifier 6, and further converted into a digital signal by an AD converter 4. Reference numeral 20 denotes a denomination teaching section, which is used to teach the denomination to be inserted in advance during arithmetic processing. For example, by pressing a push button, a denomination teaching signal is input to the arithmetic processing device 5. Fig. 5 shows the pushbuttons of the denomination teaching unit 20, or the operator visually determines the type of money to be counted, and then selects the type of money a, b, c, d to be inserted based on the result. Several settings are made in the denomination designation valve button row 22. Further, if the denomination to be inserted changes in the next counting, the teaching reset push button 21 is pressed to teach the denomination again. .

Reference numeral 5 denotes an arithmetic processing unit that performs predetermined arithmetic processing operations based on the digital signal from the A-D converter 4 and the denomination teaching signal from the denomination teaching section 20. This arithmetic processing device 5 and the memory 6 can be realized by an inexpensive configuration of a microcomputer. 7 is a digital display device such as an LED, and 8 is a printing device.

This counter detects the total weight of any number of different denominations of money 9 inserted into the money receiver 1, and calculates the average weight per piece of money measured in advance for each denomination. A predetermined arithmetic process is performed with the denomination information provided to determine the number of money for each denomination, and the total amount is calculated. This will be explained in detail below.

In order to calculate the total amount from the total weight M of the X types of money thrown in, it is necessary to determine the number of coins for each type of money. For example, suppose there are 4 types of money, and the taught denominations are also 4 types. For those combined samples, each denomination is t + i b * c, d, and the number of coins is na
, nb, n'c, nd. usually.

The weight per piece of money is mai (i = 1 to na)
.

mbj (j = 1-n, mck (k = 1-nc),
If mdfi (ρ-1 to nd), the total weight M is expressed as. It is assumed that the weight of each coin of money types A, B, C, and D is different.

The total amount A that has been inserted is expressed as follows with respect to the displayed amount for each denomination, that is, the amounts per coin fa, fb, fc, and 'fd.

A=fauna (jb*nb+fc-nc+
fd-ncl--(21f'a, fb, fc, f
Since d is known, in order to calculate the total amount A, it is necessary to determine the number of coins na, nb, nc, and nd for each denomination from the total weight M.

This is done as follows.

Average weight per coin for each denomination ma, +nb,
mc and md can be set by measuring appropriate quantities in advance. The actual weight of money is
It deviates slightly from this average value, mai.

mbjtmck, +ηdfi can also be expressed in terms of average weight as follows.

Substituting equation (3) into equation (1), M = naIImc + nb*mb +
nc・mc + nd*md・ (4) If the inside of (2) in equation (4) is the weight variation E, then M =
na++ma -1-+]l:+@mb +nc*mc
+nd*md +No.1-・(5) It becomes.

To determine the number of coins na, nb, nc, and nd for each denomination,
After setting the upper limit for the number of coins of each denomination, the total weight defined by the following formula (6) for all possible combinations of na, no), and lIC1n'd within this upper limit. Calculate M, then the number of sheets na, nb, nc, nd
Combine them together to form a table and store it in memory B in advance.

(However, n a>O, Jl b'2Q, n c:>-
Q, n d>Q, and the symbol ~ indicates a variable within the possible range. ) Note that the output signal from the money teaching section 20 teaches that at least one of na, nb, nc, and nd is ○.

Next, assuming that the signal measured by the load cell 2 and obtained from the A-D converter 4 represents the weight M, the table M calculated by equation (6) is sequentially read out from the memory 6, and the arithmetic processing unit 5 calculates the difference according to the following equation. Calculate the values sequentially.

D= IM-M+ ・ (7) And (1] a, nb, nc, n such that the calculated value is the minimum value
d) is used as the discriminant value of na, nb, nc, and nd, and the total amount A is calculated using equation (2). Since the above-mentioned arithmetic processing only needs to be performed for M that is the combination of the taught denominations, it can be performed at high speed and the total amount can be output in a very short time.

In addition, in the above calculation process, if the value of M is stored in the size register when storing the table of M in memory B, (7)
When calculating the formula, processing time can be shortened by reading M within a certain range close to the total weight M without reading out all M.

Another example of reducing processing time is the following process.

When the taught denominations are a, b, and C1d, the calculation is made and stored in the memory B. The total weight M is immediately obtained, and later a value M close to this weight M is calculated. According to this method, the processing time can be reduced within a certain limited range. Further, the capacity of the memory 6 can also be small. na, n
The ranges of b, nc, and nd are integer values expressed by the following equation for 4 to the total detected weight. - for every combination of integer values within this range (61
The equations are sequentially calculated, and the minimum value of (1) is determined by performing calculations using the force equation.

Note that even if the weight variation E of money is 0, (5
) for the same total weight M, different ( na,
nb, nc, nd) combinations may exist. However, this possibility is very small in terms of probability, and is very small compared to the probability of making an error when calculated by humans, so it is not a problem.

FIG. 2 depicts in block diagram form a second renal embodiment of the present invention.

This embodiment has the configuration shown in FIG. 1 with the addition of a detector 11 for the number of coins inserted into the money receiver 1.

This detector 11 may be of any type as long as it can optically or mechanically count money passing through a predetermined area, and a well-known counter can be used, so a detailed explanation will be omitted. Here, an example is shown in which the number of cash and money is detected optically in combination with the light source 10.

The arithmetic processing device 5 receives input denomination information taught by the denomination teaching section 20, a digital signal representing the number of money Z from the detector 11, and an A-D converter representing the total weight M of the deposited money 1. A predetermined calculation is performed based on the digital signal from 4 and the average weight per piece of money measured in advance for each denomination to calculate the total amount.

In this embodiment, the number of coins for each denomination is determined as follows.

The total number of money N is stored in order. When the total number N and total weight M of money are detected, the taught denomination information is used to calculate the method as in Example 1, but the difference or the minimum among the table data where N=N is calculated. Let this be the discriminant value.

According to such arithmetic processing, a certain range of restrictions is added to the values obtained for υna, nb, nc, and nd depending on the total weight M and total number N, and one denomination a, b, c, and d is obtained. It will be limited to the above, and all types #M of the same type within this certain range
The probability that different combinations (of na, nb, nc, nd) exist is smaller than in the first embodiment.

On the other hand, since the number of money N is known, give it na
The number of combinations of , nb, nc, and nd is usually not that large, so the average weight per sheet given in advance is ma, mb, mc,
It is also possible to calculate the formula (6) using md, and then perform the subtraction of the formula (7) on the resulting M and M. According to this method, tenibles are not required and the capacity of the memory can be reduced.

As mentioned above, the two embodiments have been described, and the false reversal rate cannot be set to zero in any of the embodiments. This is a problem inherent in monetary counters such as and.

The sixth embodiment of the present invention relates to a total amount output method,
This will be explained below.

In the above example, in order to calculate the number of money pieces for each denomination, (7
) formula to determine the minimum value, but under certain conditions there may be multiple M values that are quite close to the detected total weight M. obtain. Considering that the total weight M is affected by the weight variation E of each coin, calculating the number of coins for each denomination only based on the minimum difference in the above case is likely to result in an error. becomes higher. Therefore, the variation in weight of money is measured in advance and a constant value S is set, and the minimum value I]1 of the difference J]
, the next largest difference 1) 2, and then several differences such as the next largest difference D5 (total of 9 in the method, 11 of these multiple differences) that satisfies 1 ≦ 8 (9) The total amount obtained by No.1 is all output. Alternatively, instead of outputting the combination S1 and event l, a display indicating that it is a mistake or a high probability may be displayed to prompt the operator to visually determine the number of plays.

If banknotes are used as money in the second embodiment, the probability of errors occurring increases because the amount of banknotes to be collected varies depending on the humidity of the surrounding air. FIG. 6 is a diagram showing the relationship between the relative humidity of air and the moisture absorption rate of banknotes.

Focusing on the fact that there is a fixed relationship between changes in the relative humidity of the air and changes in the weight of banknotes, we installed a humidity detector and calculated the average weights ma, mb, mc, md of each denomination based on the relative humidity of the surrounding air. It is possible to correct the measured value using a humidity correction formula determined experimentally in advance, and use this as the average weight to calculate the total amount in the same manner as in the above embodiment.

The configuration for this purpose is shown in FIG.

In this embodiment, the output of the humidity detector 12 is converted into a digital signal by the A-1,) converter 1, and the arithmetic processing unit 5 uses this signal to correct the humidity of the average weight. Other processes are the same as those in the above embodiment, so explanations will be omitted. It is clear from the description of the embodiment shown in FIG. 1 that the light source 10 and sheet number detector 11 in the configuration shown in FIG. 4 may be omitted.

According to these embodiments, it is possible to suppress an increase in the error rate due to the influence of the weight of banknotes or the humidity of the surrounding air (C).

As described above, according to the present invention, it is possible to provide a money counter that can shorten the counting time, reduce the price, and reduce noise.

[Brief explanation of the drawing]

1 and 2 are block configuration diagrams of the first and second embodiments of the present invention, respectively. FIG. 6 is a diagram for explaining changes in the weight of banknotes due to changes in the humidity of the surrounding air. FIG. FIG. 5 is a block diagram of the sixth embodiment of the present invention, and is a diagram for explaining a denomination teaching section common to each denomination embodiment. 1... Money is a vessel 2... Load cell 6/Amplifier
4.13...A-1) Converter 5... Arithmetic processing unit
6.Memory 7.Display device 8.Printing device
9 Money 10...Light source 11...Number of sheets detector 12.
Humidity detector 20・Denomination teaching unit 21・・Teaching reset pushbutton 22・Denomination specification pushbutton row for teaching gold fNa, b, c, d Fig. 1 Fig. 3

Claims (1)

[Scope of Claims] (1) Means for detecting the total weight M of money of type X inserted and converting it into an electrical signal, means for converting the electrical signal into a digital signal, and arithmetic processing of the type of money to be inserted. a denomination teaching section for teaching in advance when the denomination is to be performed; an arithmetic processing section that performs predetermined processing based on the digital signal and the denomination teaching signal from the denomination teaching section; It includes a storage unit that stores various information and a device that outputs processing results, and the calculation process involves multiplying the average weight per coin of each denomination measured in advance by the weight of 1 to n coins. By comparing all combinations of total weights obtained by combining the obtained n sets of weights for each taught denomination with the weight M, the number of coins of each denomination of money inserted is determined. 1. A money counter, characterized in that it performs a process of calculating and outputting a total amount. (2. In the money counter described in claim 1, the calculation process is obtained by multiplying the average weight of each denomination measured in advance from 1 to n coins. By selecting the value closest to the weight M among all the combinations of total weights obtained by combining n sets of weights for each denomination taught, the number of coins of each denomination of money inserted is determined. (3) The money counter according to claim 1, wherein:
As a device for outputting the processing results, at least one of a display device capable of displaying a plurality of values and a printing device capable of printing a plurality of values is provided. Among all the combinations of the total weight obtained by combining the n sets of weights obtained by multiplying the average weight per coin from 1 to n coins for each denomination taught, the weight M A money counter that performs a process of estimating a plurality of sets of the number of coins of each denomination of inserted money by selecting a plurality of values whose difference is within a predetermined range, and calculating the total amount of the plural sets. (4) Means for detecting the total number Z of money of type X that has been inserted, means for detecting the total weight M of the money of type X and converting it into an electrical signal, and means for converting the electric signal into a digital signal. , a denomination teaching section for teaching in advance the denomination to be input during calculation processing, and an arithmetic processing section that performs predetermined processing based on the digital signal and the denomination teaching signal from the denomination teaching section. , a storage unit that stores various information associated with the arithmetic processing, and a device that outputs the processing results,
As the arithmetic processing, it is obtained by multiplying all the combinations of the taught denominations that result in the detected number of inserted coins Z by the average weight per coin of each denomination measured in advance. Calculate the total weight, and combine the calculated value and the weight M
A money counter is characterized in that it performs a process of determining the number of coins of each denomination of money inserted, calculating and outputting the total amount. (5) In the money counter according to claim 4, the calculation process includes measuring in advance all combinations of taught denominations that result in the detected number of inserted coins Z. By calculating the total weight obtained by multiplying the average weight of each coin for each denomination, and selecting the value closest to the weight M among the calculated values, the denomination of the deposited money is calculated. A device for determining the number of sheets, calculating the total price, and outputting the processing results includes at least one of a display device capable of displaying a plurality of prices and a printing device capable of printing a plurality of values. As the calculation process, all combinations of the taught denominations that result in the detected number of inserted coins Z are multiplied by the average weight per coin for each denomination measured in advance. By calculating the total weight obtained by calculating the total weight, and selecting among the calculated values the difference between the weight and the plurality of values within a predetermined range, multiple sets of the number of coins of each denomination of the inserted money are estimated, and A money counter that is patented to perform processing to calculate the total amount of multiple sets. (7) A means for detecting the total weight M of the deposited money of type X and converting it into an electrical signal, a means for converting the electrical signal into a digital signal, and a means for teaching in advance the type of money to be inserted during calculation processing. a denomination teaching section, a device for outputting the digital signal, a denomination teaching signal from the denomination teaching section, and a processing result, a means for detecting the humidity of surrounding air and converting it into an electrical signal, and the electrical signal. and means for converting into a digital signal, and the arithmetic processing includes means for converting the amount of money per denomination of the banknote into a digital signal, which is measured in advance based on the signal obtained from the humidity detector when the money is a banknote. The average weight is corrected and the average weight per coin of these corrected denominations IT is multiplied by 1 to 0 coins.
The number of coins of each denomination of money inserted is determined by selecting the value closest to the weight M from among all combinations of total weights obtained by combining the weights of the set for each denomination for which the weight of the set is taught. 1. A money counter characterized by performing processing to calculate a total amount. (8) Means for detecting the total number Z of money of type X that has been inserted, means for detecting the total weight of the money of type X and converting it into an electrical signal, and converting the electric signal into a digital signal. means, a denomination teaching section for teaching in advance the denomination to be input during calculation processing, and arithmetic processing for performing predetermined processing based on the digital signal and the denomination teaching signal from the denomination teaching section. a storage unit that stores various information associated with the arithmetic processing, a device that outputs the processing results, a means for detecting the humidity of the surrounding air and converting it into an electrical signal, and a means for converting the electrical signal into a digital signal. The calculation process includes means for correcting the average weight per denomination of banknotes measured in advance based on the signal obtained from the humidity detector when the money is banknotes. Then, calculate the total weight by multiplying all combinations of the taught denominations that result in the detected number of inserted coins Z by the corrected average weight, and calculate the total weight obtained by multiplying the corrected average weight. A money counter characterized in that the number of coins inserted by each denomination is determined by selecting the value closest to the weight M, and the total amount is calculated.