JPS5864585A - Paper money discriminator - 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 banknote validating device, particularly a banknote validating device using a microprocessor, and enables writing of a program memory from an externally connected device, thereby easily and quickly changing the program. This is something that can be done.

Banknote discrimination devices are widely used in currency exchange machines, ticket vending machines, automatic vending machines, automatic teller machines, etc., but their discrimination functions are diverse and can be used to distinguish between one gold glaze and several gold coins. Extensive use. In fact, some models are used in central computers and online system systems, such as automatic teller machines used by banks and the Ministry of Posts and Telecommunications. Depending on the degree of discrimination function and interface function with external devices, banknote validation devices in such devices are sometimes configured by wiring logic circuits, but recently, they are configured to be controlled by microcomputers. Most of them are.

Figure 1 shows an example of such a conventional banknote validating device, where l is a microprocessor (hereinafter referred to as CPU).
A programmable memory 2 (hereinafter referred to as FROM), a random access memory 3 (hereinafter referred to as RAM), a sensor interface 1, an input/output interface 5, and a device interface t are connected to the microcomputer bus by the CPU /. 7. Here, discrimination procedures, interface procedures, etc. are stored in the FROM 2.

g is a separate sensor section that detects the size of banknotes, etc.

The detection output signal from the sensor section r is supplied to the sensor interface l via the sensor chitara ink, and the signal is sent to the CPU/RAM 3, etc., where the denomination and the like are discriminated. The external device +t tθ is connected to the device interface B by an interface bus /l, and sends out data signals and the like to the outside, and takes in data signals and the like from the outside.

In the banknote validating device configured in this way, for example, the validation procedure for the printing and dimensions of banknotes is set in advance from the FROM,
2, and when a detection signal is output from the sensor unit, the CPU 1 reads the bill discrimination procedure from FROMλ, discriminates the bill, and sends the discrimination result to the external device lθ via the device interface 6. .

However, such conventional microcomputer-controlled banknote validating devices have the problems shown in item 1), especially when they are incorporated into vending machines, etc. of systems operated on a nationwide scale. However, there are problems as shown in sections 2) and 8).

That is, (2) Generally, the FROM, 2 is attached to the identification device using a socket, but this is not preferable from the point of view of reliability because there is a fear of accidents such as poor contact during long-term use.

2) The printing condition of banknotes may change due to the issuance of new banknotes or changes in monetary units (
If something is changed from a certain point due to (denomination), etc., the PROM
, without changing the software written in 2, it would take a huge amount of manpower to perform 1% program exchange of PI'LOM- in the identification devices of vending machines installed in many places. Give time.

8) From the perspective of crime prevention-F, programs for multiple identification methods should be prepared in advance, and FROM 2 should be prepared at the required time.
Although it is desirable to appropriately replace the program written to the banknote, this is difficult to realize in conventional banknote validating devices of this type for the same reason as mentioned in Section 2.

In view of the above-mentioned problems, it is an object of the present invention to easily rewrite program memory via an external device, to easily change software when issuing new banknotes or for security reasons, and to prevent malfunctions. To provide a highly reliable banknote validating device with less noise.

That is, the present invention can write a microprocessor that controls various devices and a program that discriminates banknotes, and prohibits writing to a random access memory provided in advance with the microprocessor and a random access memory. It has a prohibition switch and an external device that imports the program from the outside and stores it in the random access memory, the prohibition switch releases the write prohibition, and the program is stored in the random access memory under the control of the microprocessor. The present invention is characterized in that the stored program can be rewritten from the outside via the external device.

The present invention will be described in detail below based on the drawings.

In the following, parts similar to those in FIG. 1 are given the same reference numerals and their explanations will be omitted.

FIG. 2 shows an embodiment of the present invention, where ``ga'' is a microprocessor (CPU), and ``n'' and ``n'' are a ROM for a program loader connected to the CPU 21 via a microcomputer bus 7, and a rewritable ROM, respectively. ILAM as a possible program memory. RAM2?
A write inhibit switch 23 is connected to the write inhibit data line 2 through the write inhibit data line 2. Other It, A, M 3
The configurations of the sleeve interfaces p, s, 6, etc. are the same as the example shown in FIG.

In the banknote validating device configured in this way, when the prohibition switch Δ is in the closed state (on), writing to the RAM 2J is prohibited (referred to as a write-inhibited state), and in such a prohibited state, the external device lO Even if a command to write program 1 of RAM 23 is issued from device interface B to device interface B, writing is not performed.

1, when the prohibition switch B is in the open state (on), writing to Rh and M23 becomes possible (referred to as a write-enabled state). Therefore, the prohibition switch 25 is turned off to enable writing, and the external device 10
Program memo IJ from device interface B
, Q is issued, the OPU, 2/ takes out the loader program from the ROM 22 in which the program loading procedure is written, and writes a new program sent from the external device lθ to rtA, 1vL23. . After writing all new programs in this way, the prohibition switch B is turned on to once again prohibit writing from the external device lθ.

Note that the RA and M23 retain the written program as long as the device is being accessed, so once the program is loaded, the program will be changed to a new one. If not, there is no need to load programs from the external device 10 one by one. Also, if you do not have a buggy hack amplifier, the program that has been written will be erased when the power is turned on or off, so each time the power is turned on, the program will be transferred from the external device/θ to the R, AM23. It is necessary to load.

FIG. 3 shows the structure of a write inhibit switch according to another embodiment of the present invention, in which the prefectural switch 35 has two switch sections 35A and 35B. Of these, the switch section 3SA is a switch that prohibits writing of the program, and the switch section BA is a switch that prohibits writing of programs to the program memory 23 and the input/output interface S via the prohibition data line 2.
Connect directly to Further, 3313 is a plurality of switches that can set code numbers for individually identifying the device type, good A number, etc. of the banknote validating device d, and are connected to the human output interface 5.

By configuring the prohibition switch 3S in this way,
Although not shown in this figure, the prohibition switch 35A can be accessed from the outside by using an external device lθ configured similarly to that shown in FIG.
In addition, by reading the code number from the on/off state of the code number switch 33B, it is possible to determine which program should be loaded into the LAM 2J.

Figure 1 shows another embodiment of the present invention, in which an external device /θ is connected to a center computer F/ via a communication link 2. Here, the other devices are the same as in FIG. 2, and the prohibition switch 3S shown in FIG. 3 is used. In the bill validating device configured in this way, data related to a predetermined business is normally exchanged between the center computer F/ and the external device IO, but once a command to rewrite the program in the program memory When the code number is output from the center view tag/, the program specified according to the code number can be written into the program memory B via the external device/θ based on the state of the code number switch 33B shown in FIG.

FIG. S shows still another embodiment of the present invention, in which a cassette memory goobutton l is connected to an external device 10, and a cassette tape 5/ is always connected in this way, and the cassette -B3/ to RAM, ? Code the program to J. When changing a program, the contents of the program on the cassette tape 51 are replaced with a new program. Therefore, in this example, inhibit switches Δ and 35 as shown in FIGS. 2 and 3 are not required.

As explained above, according to the present invention, the banknote discrimination program, which was conventionally loaded into the PROM installed in the discrimination device using a socket etc., can be replaced with a rewritable program provided in advance in the discrimination device. Since the program in the tAM can be rewritten (by writing in the RAM and through an external device), there is no need to replace the FROM every time the program is changed, and the reliability of the identification device is improved.

1. Connect the center computer and each identification device,
If the program in 1LAJvf can be changed from the center computer, it will be possible to easily change the program of banknote validators installed in a wide range of areas in a short period of time. When the unit changes or when it is necessary for crime prevention, the program can be changed quickly and easily within the limits of machine dimensions, etc.

Although the above description has been about banknote validators used in automatic teller machines, etc., the invention is not limited to banknote validators d in online systems used in banks and postal institutions, etc. It goes without saying that the +4 can also be used effectively as a program storage device in a terminal device of an online system generally used for wide area services.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an example of the configuration of a conventional banknote validating device controlled by a microcomputer, Fig. 2 is a block diagram showing the configuration of the banknote validating device d of the present invention, and Fig. 3 is a prohibition switch thereof. FIG. ψ and FIG. S are block diagrams showing other ++m examples of the banknote validating device of the present invention. L... Microprocessor, 2... Read only memory, 3... Random access memory, L... Sensor interface, S... Input/output interface, 6... Technology interface, 7... Bus Za.・・・Sensor part, ri...
Cheetah line, /θ...external device L/l...bus, 2/...microprocessor, sword...PI(,
0M12J...RAM. 21... Cheetah line, )3, 33... Prohibition switch, 35A, , 3SJ3... Switch part,
ri/...center computer, guts...times ft&,
”...Cassette memory tape 0 Figure 4

Claims (1)

[Scope of Claims] l) A microprocessor that controls various devices and a program that discriminates banknotes can be written in, a random access memory provided in advance with the microprocessor, and IT writing to the random access memory prohibited. and an external device that imports the program from the outside and stores it in the random access memory, the prohibition switch cancels the prohibition of erasure and copying, and the program is programmed under the III fAI of the microprocessor. #+I A banknote validating device characterized in that the program stored in the rough random access memory is rewritten from the outside via the external device. 2. In the banknote validating device according to claim 1, the external device is connected to a center computer, and the 1111 program stored in the random access memory is written by the center computer. A banknote discrimination device characterized by