JPH059865B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field The present invention relates to an automatic teller machine that performs transaction processing using an input medium whose recording density variation characteristics are within the standard, and particularly relates to an automatic teller machine that makes pass/fail judgments regarding recording density variations. Regarding.

(b) Prior art and its drawbacks Automatic teller machine (hereinafter referred to as ATM)
etc., use a magnetic card or magnetic passbook as an input medium, but generally after a transaction is completed, the input medium is updated and the medium information is rewritten. However, in conventional devices, input media that are out of specification due to fluctuations in recording density are also returned because the media information is updated and then returned. For this reason, customers are required to transfer returned non-standard input media to other sources.
When used in an ATM, etc., the device determines that the input medium is abnormal, resulting in a situation where a transaction cannot be performed, leading to a decline in customer service and impeding smooth operation of the transaction processing system.

(c) Purpose of the Invention The purpose of the present invention is to solve the above-mentioned conventional problems, and to provide a method for determining whether the recording density fluctuation of an input medium that has been subjected to update processing is acceptable or not, and for input media whose recording density fluctuation characteristics are out of the standard. An object of the present invention is to provide an automatic cash transaction device that can improve customer service and smooth the operation of a transaction processing system by holding the transaction without returning it.

(d) Structure of the Invention To summarize, the present invention includes a recording density fluctuation rate measuring means for measuring a fluctuation rate of the recording density of update information recorded on an input medium with respect to a reference recording density, and a recording density fluctuation rate measuring means using the recording density fluctuation rate measuring means. fluctuation rate measuring means for determining whether the recording density fluctuation rate for each recording bit measured by the recording bit exceeds a permissible value; and input medium holding means for holding the input medium when the recording density fluctuation rate exceeds the permissible value. The recording density fluctuation rate, which represents the recording density fluctuation characteristics, is measured, and the recording density fluctuation rate is determined by comparing whether or not the fluctuation rate exceeds the above-mentioned allowable value determined in accordance with the standard of the fluctuation characteristics. It is designed to make a pass/fail judgment.

(e) Embodiment FIG. 1 is a schematic block diagram showing a part of an automatic teller machine which is an embodiment of the present invention.

This transaction processing uses a magnetic card or a magnetic passbook as an input medium, and a main processing unit (hereinafter referred to as a master CPU) 1 connects multiple subordinate processing units (hereinafter referred to as slave CPUs) via a bus line 5. It consists of a master-slave system that controls the CPU. A magnetic card reader 3 and a magnetic passbook reader 4 that read information recorded on an input medium are controlled by one slave CPU 2. Connected to the master CPU 1 and slave CPU 2 are storage devices consisting of ROMs 7 and 9 that store programs that define the operating procedures of each CPU, and RAMs 8 and 10 that temporarily store various data. The magnetic card write data read by the magnetic card reader 3 and the magnetic bankbook write data read by the magnetic bankbook reader 4 are provided to a recording density variation rate measuring device 6. The write data of the input medium is transferred to the slave CPU 2 through the recording density variation rate measuring device 6, and the recording density variation rate, which will be described later, is measured for each recording bit with respect to the update data of the input medium.

When a read command is sent from the master CPU 1 to the slave CPU 2, the slave CPU 2 controls the magnetic card reader 3 or magnetic passbook reader 4 according to the execution program specified by the command, and transfers the data read from the input medium to the master CPU 1. send. In addition, regarding the updated information after the transaction is completed, the recording density fluctuation rate for each recording bit is measured by the recording density fluctuation rate measuring device 6,
The measured recording density variation rate is stored in the RAM 10 for each recording bit. When fluctuation rate data has been collected for all recording bits, all stored recording density fluctuation data are transferred to the master CPU.
Send to 1. The master CPU 1 performs a pass/fail determination process for recording density variation based on the transferred recording density variation rate data. Transaction processing data such as deposits and payments are transmitted from the master CPU 1 to a center (not shown), and necessary information from the center is transmitted to the master CPU 1.
Sent to 1.

The recording density variation rate R measured by the recording density variation rate measuring device 6 for the data read from the update information is the difference between the predetermined standard recording density Ds and the measured recording density D measured for each recording bit ( D-Ds) and the reference recording density Ds as a percentage. The standard recording density Ds, measured recording density D, and recording density variation rate R are calculated using the following formulas.
Shown as (1) to (3).

Standard recording density Ds = Standard bit interval Bs/Head running speed...(1) Measured recording density D = Measured bit interval B/Head running speed...(2) Recording density variation rate R (%) = D-Ds/Ds ...(3) In the above equation, the reference bit interval Bs is the generation interval of the clock generated at regular intervals to operate the slave CPU 2, and the measurement bit interval is the interval between each bit of the update data. be. Furthermore, the head running speed can be determined using the magnetic card reader 3.
Alternatively, it is the running speed of the head of the magnetic bankbook reader 4. Standard recording density determined by equation (1) above
Ds is set in advance in the recording density fluctuation rate measuring device 6, and the measured recording density D is calculated for each recording bit from the updated data using the above equation (2), and the recording density fluctuation rate R is calculated using the above equation (3). decide.

The recording density fluctuation rate R measured for each recording bit based on the above equation (3) is sequentially calculated as described above.
The data is stored in the RAM 10 and sent to the master CPU 1 when measurement of all recorded bits is completed. The fluctuation rate data sent through the slave CPU 2 is stored in a data area allocated to the RAM 8 for each recording bit. An example of storing fluctuation rate data in these data areas is shown in FIG. The master CPU 1 performs a process of determining whether the recording density fluctuation is acceptable or not based on the fluctuation rate data stored in the RAM 8, and an allowable value of the recording density fluctuation rate is determined in advance as a criterion for this determination. This allowable value is set as a standard for recording density variation characteristics in accordance with other trading devices.

The above determination process will be explained with reference to FIG. In this transaction device, the allowable value is set to 5% in advance. In step n1 (hereinafter, step ni is simply referred to as ni) n2, it is determined whether the recording density variation rate is acceptable or not, starting from the first data area, that is, whether the recording density variation rate exceeds the allowable value of 5%. Then, when it is determined that it is below the allowable value, the data area address is incremented by 1 and the process moves on to determining the fluctuation rate stored in the next data area (n3). When the recording density fluctuation rate stored in any data area exceeds the allowable value, it is recorded that the recording density fluctuation is abnormal, and the determination process is ended. For example, in the example of the fluctuation rate data shown in FIG. 2 above, the recording density fluctuation characteristics are determined to be normal for data areas A(1) to A(n-1), but teeth
Since it is 5.238%, it is determined to be abnormal. As described above, the recording density fluctuation rate is compared with the allowable value to determine whether or not the recording density fluctuation characteristics are abnormal, and as described later, if it is abnormal, the return of the input medium is stopped and abnormality processing is performed. Move to.

Next, the general operating procedure of the transaction device during a transaction will be explained with reference to the flowchart shown in FIG. 4.

The processing in n10 to n17 corresponds to well-known transaction processing executed at ATMs and the like. At n10, the customer designates the transaction mode, and after selecting the transaction, the customer waits for the insertion of a magnetic card or magnetic passbook (n11). Once the card or passbook has been inserted, the key-in of the PIN is accepted (n12), and the entered PIN is verified (n13).
If the above processing is performed normally, various transaction data are sent to the center (n14).

Next, it is determined whether the transaction is successful or not by sending and receiving data with the center (n15), and if the transaction is not successful, it is determined whether the transaction is successful or not.
Proceed to step 1 and execute abnormality processing regarding the failure of the transaction. If the transaction is successful, the process proceeds to n16, where transaction processing is executed according to the transaction details selected by the customer.
After this transaction process is completed, the information written on the card or passbook is updated according to the transaction details, that is, the data is rewritten (n17). When this update process is completed, the process proceeds to n18, where the process for determining whether the recording density variation is acceptable or not, as explained with reference to FIG. 3, is performed. As a result of this judgment process, if the recording density fluctuation characteristics are normal and within the specifications, the transaction is terminated and the card or passbook is returned (n19). On the other hand, when a recording density variation rate that exceeds the allowable value is stored, as in the data area (n) shown in Figure 2, the recording density variation characteristic is determined to be abnormal, that is, outside the standard (n18 ), the card or passbook is held in the device without being returned, and processing proceeds to abnormality processing regarding the abnormal input medium (n20, n21).

As mentioned above, after transaction processing, the recording density fluctuation characteristics of the updated information are checked to determine whether the recording density fluctuation is acceptable, and if the recording density fluctuation characteristics are outside the standard, the input medium of the card or passbook is held. This eliminates the possibility that input media that have entered outside the specifications will not be returned to the customer, that the abnormal input media will be used in other transaction devices, and that abnormal processing can be immediately executed on the spot. In addition to improving customer service, it is possible to allow only normal input media to exist in the transaction world, and the transaction processing system can be operated smoothly.

(f) Effect of the Invention As described above, according to the present invention, the rate of change in recording density of updated information with respect to the standard recording density is measured every time a transaction process is completed, and when the rate of change exceeds the allowable value, the standard Since input media are not returned after making a later judgment based on external recording density fluctuation characteristics, abnormal input media are not handed over to customers, improving customer service and realizing smooth operation of the transaction processing system.

[Brief explanation of the drawing]

Figure 1 is a schematic block diagram showing a part of the internal configuration of an automatic teller machine which is an embodiment of the present invention, and Figure 2 is a RAM configuration showing a data area for storing the recording density fluctuation rate in the automatic teller machine. 3 is a flowchart showing the operation of the automatic teller machine to determine whether or not the recording density is changed, and FIG. 4 is a flowchart showing the general operating procedure of the automatic teller machine at the time of transaction.

Claims (1)

[Claims] 1 Recording density that measures the rate of change in the recording density of updated information recorded on the input medium with respect to the standard recording density in an automatic teller machine that updates the information written on the input medium and returns the input medium after performing transaction processing. a fluctuation rate measuring means; a fluctuation rate determining means for determining whether the recording density fluctuation rate for each recording bit measured by the recording density fluctuation rate measuring means exceeds a permissible value; An automatic cash transaction device comprising an input medium holding means for holding the input medium when the value exceeds the value.