JPS63229543A - Marine data base device - Google Patents

Abstract

PURPOSE:To surely recognize a registered user and to easily correct the breakage of a data base and altered data by providing an operator discriminating means, plural data bases, a data check means, a data correcting means, etc. CONSTITUTION:A processor 21 compares an input ID code and a password with the codes and passwords of a memory 24 and 25 respectively for discrimination between a normalized operator and the general operators and outputs the normal and general trigger signals. A processor 31 receives these trigger signals to give accesses to data bases 32-34 and reads out data to display them on a display 36. At the same time, the processor 31 carries out the program operation of an abnormal data correcting means based on a command given from a keyboard 35. A data comparing means 41 compares the data on the bases 32-34 with each other and an abnormal data deciding means 42 decides an abnormal base data when no coincidence is obtained from said comparison. A data correcting means 43 uses the data on the data base having the highest weighting to correct the abnormal data on the relevant data base.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a marine database device that stores and manages various business data of ships, and in particular, checks for fraudulent activities in databases including computers and corrects them in case of abnormalities. It relates to a marine database device.

(Prior Art) In recent years, the labor saving of ships has been gradually progressing, and the number of crew members has tended to decrease accordingly. As a result, the crew cannot handle the various tasks of a ship after it berths by itself, and the necessary tasks are carried out with the assistance of the shipowner's agent, shipper's agent, and shore support personnel. For this reason, large numbers of people who do not know each other often come in and out of ships that are berthed.

Meanwhile, onboard ships, data on various ship operations, including automated operation of various equipment and self-help navigation, as well as cargo storage, loading and unloading processing, etc., is stored in databases containing computer systems. From the viewpoint of reliably storing and managing the data in the database, it is necessary to appropriately check for destruction and falsification of data in the database that may occur due to the coming and going of a large number of people.

By the way, conventional computer systems have many measures to prevent unauthorized use, but they can be broadly classified into three types.

One is that the ID code is stored in advance on the system main unit and the ID card, and when the card owner sets the ID card, the system main unit checks the code of the 10 cards and the ID code on the main unit. This method determines that the card holder is a genuine card holder when the two codes match, and checks for unauthorized use.

The other is that the alWi number is stored in advance on the system main unit, and when the PIN is entered from the keyboard, the system main unit stores the input PIN and the lWi number in memory.
This is a password-based checking method in which the user is checked against the I&E number and, if they match, the user is determined to be a genuine registered user.

The other method is a security key check method in which a genuine registered user has a key in advance and performs a predetermined process on the system main body side only when the key is inserted and operated.

(Problem to be Solved by the Invention) However, among the above three unauthorized use prevention methods, the method of using an ID card and password is such that if the ID code or password is known to another person at some opportunity, the ID card There is a possibility of forgery or unauthorized use of passwords, and in particular, even if data in the database is destroyed or tampered with, there is no way to know about it, and it is impossible to check for such destruction.

On the other hand, the latter method using a security key has the problem of losing the checking function if the key is lost or stolen.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to reliably recognize registered users, and if there is abnormal data due to destruction or falsification of data in the database, the abnormal data can be removed. The purpose of the present invention is to provide a marine database device that can generate data and correct it to normal data.

(Means for Solving the Problems) A marine database device according to the present invention includes a memory in which an ID code group and a password group are stored in advance, a card reader that reads the ID code from an ID card, and a password input. input devices and from these card readers and input devices.

1 of input data such as ID code and password
an operator determining means for comparing the input data with the ten code groups and password group of the memory corresponding to the input data, determining whether the operator is a general operator or a regular operator, and outputting a signal of the determination result; reading out the same data by increasing the number of accesses within the range of the plurality of databases according to general operators and regular operators from a plurality of databases in which are stored and the signal content of the discrimination result obtained by the operator discrimination means; A data check means that checks for data destruction, falsification, etc. compares the data in each database based on access data that occurs periodically or arbitrarily, and if there is a discrepancy between each data, it is determined to be abnormal based on predetermined weighting. The abnormal data correction means judges the data and corrects the abnormal data to normal data.

(Function) Therefore, the present application, by taking the above means,
When an ID code or password is input from a card reader or input device, the ID code or password is compared with the 10 codes or passwords stored in memory, and if they match, it is determined that the operator is a general operator, and data in a predetermined database is stored. Also, if an ID code and password are input from the card reader and input device, the ID code and password are compared with the D code group and the password group, and if they match, the ID code and password are authenticated. By identifying the operator and reading all database data, even if the data in the database is destroyed, the authorized operator can easily discover the destruction by looking at the data, and the abnormal data correction means can be used to correct the problem, for example, periodically. The data in each database is compared, and if there is a discrepancy, it is determined whether the data in the database is abnormal based on weighting, and the abnormal data is corrected to normal data.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing the hardware configuration of the device of the present invention, which is composed of an ID card 10 such as a magnetic card having a specific ID code owned by every operator, and a marine database 20. From this point of view, it has a data check means for manually checking data, and an abnormal data correction means for non-artificially correcting abnormal data due to destruction or falsification.

This marine database 20 is for example a ship owner.

It has a function that distinguishes between regular operators such as captains and shippers and other general operators, and generates a signal when it is determined that it is one of the operators.

Specifically, this marine database 20 has a first processor 21 and a second processor 31, and the first processor 21 has an ID card reader 22 that reads 10 codes stored in the ID card 10, and a password. A keyboard 23 and the like as an input device for inputting data is connected. The first processor 21 also includes an ID code memory 24.0 that stores a group of ID codes for identifying all operators. A password memory 25 is connected that stores password groups for identifying all operator groups. The reason why the operator's password group is stored in the password memory 25 is that in the case of the ID card 10, there is a risk of loss or theft, whereas in the case of a password, the operator inputs the password directly, so there is a risk of loss or theft. This is because there are few numbers, and in this sense it can be considered that it has a certain degree of weighting.

Next, the second processor 31
connected by a bus to the processor 21, which enables the controller input from the processor 21 to activate access software for the corresponding databases 32 to 34 in response to a signal, and executes the access software in response to an activation command input from the keyboard 35; It has a function of accessing the databases 32 to 34 and displaying necessary data contents on a display. Note that the keyboard 35 accesses the databases 32 to 34 while interacting with the display 36, and writes and reads data. Also,
The display 36 has the function of displaying the data in the databases 32 to 34 and displaying instructions on how to write and read data.

The databases 32 to 34 each store the same data, and the database 32 is accessed when it is determined that the operator is a general operator based on the ID code input from the card reader 22.
The database 32, 33 is accessed when it is determined that the general operator is more reliable than the ID code based on the password input from the card reader 22 and the input password from the keyboard 23.
The databases 32 to 34 are accessed when it is determined that the operator is an authorized operator based on the D code and password.

In general, this marine database device has software for correcting abnormal data in data processing. Specifically, this abnormal data correction means is accessed periodically or based on an external command as shown in the functional block of FIG. a data comparing means 41 for comparing and determining the presence or absence of mismatched data; and this data comparing means 41
If it is determined that there is a discrepancy based on the judgment, each database 32 to 34 is divided according to a predetermined ratio or weighting such as majority logic for each database 32 to 34.
Abnormal data determining means 42 determines whether or not any of the data in step 4 has an abnormality, and data in the database determined to be abnormal by this abnormal data determining means 42 is replaced with data in a normal database. Data correction means 4
It consists of 3.

Next, the operation of the apparatus configured as above will be explained. First, when an operation start command is issued based on a set signal to the card reader of the ID card 10 or the operation of a predetermined key on the keyboard 23 or 35, the first processor 21 performs an initialization process as shown in step S1. After clearing the data already stored in the memory of the processor 21 and other necessary data and setting necessary initial conditions, the process moves to step S2 and it is determined whether the 10 code has been input. If the operator sets the ID card 10 in the IQ card reader 22 and reads the code of the 10 card 10 with the card reader 22, it is determined that there is a 10 code, and the ID code is temporarily stored in the processor's built-in memory (
Step S3). After that, in step S4, it is determined whether or not a password has been input from the keyboard 23, and if it is determined that a password has not been input, the I
Since only the D code has been input, the process moves to step S5 and the ID code in the processor built-in memory is compared with the ID code group stored in the ID code memory 24 to determine whether or not the operator is a general operator. . If the operator is a general operator, a general trigger signal is output (step 86). In response to this signal, the second processor 31 enables the access rough 1-ware to the database 32 to be activated, and determines whether or not an activation command has been input from the keyboard 35 (step 37).

If a startup command has been input, the access software is executed and the database 32 is accessed (
Step 88). This access causes database 32
In step S9), the data is read out from the display 36 and displayed on the display 36, and the state of the stored data is checked.

Further, if the 10 code is not input in step S2, the process moves to step S11 and the keyboard 23
Determine whether or not a password has been entered. If there is a password, the password is stored in the processor's built-in memory as shown in step 812, and then the password is compared with the password stored in the password memory 25. If they match, the password is more reliable than the ID code. In this case as well, it is determined that the operator is a general operator (step 513), and a general trigger signal different from that in step S6 is output (step 514).

In response to this trigger signal, the second processor 31 enables the software for accessing the databases 32, 33 to be activated, and determines whether a startup command has been input from the keyboard 35 (step 515). If the startup command is input, the access software is executed to access the databases 32 and 33 (step 816). The data read from the databases 32 and 33 through this access is displayed individually or in parallel on the display 36 (step 517).

If displayed in parallel, at least database 3
Differences in data between 2 and 33 can be discovered, data can be checked, and corrections can be made if necessary.

Next, if it is determined in step S4 that a password has been input, this password is stored in the processor built-in memory (step 521).

Thereafter, in step 822, the ID code and password of the processor built-in memory and the above! The ID code group and password group in the D code memory 24 and the password memory 25 are compared, and if they match in each comparison, it is determined that the operator is the correct operator, and a regular trigger signal is output (step 523). In response to this signal, the second processor 31 opens the database 32 and 33.
．． 34 is activated, and it is determined whether an activation command has been input from the keyboard 35 (step 524). If the startup command is input, the access software is executed and the database 32, 33, 34 is accessed (step $25).

The data read from the database 32, 33, 34 by this access is displayed individually or in parallel on the display 36 (step 826). Therefore, in this case, since the operator is a regular operator belonging to the ship owner, shipper, or captain, he can check all the databases 32 to 34 to see if the data has been destroyed or tampered with, and if there is an abnormality, he can report the abnormal data. It can be fixed.

Although data can be checked by a regular operator as described above, a regular operator cannot perform the same checks as a regular operator, and the data may be destroyed or tampered with. is also considered normal data. Therefore, the program operation of the abnormal data correction means is executed periodically in the second processor 31 or based on commands from the keyboard 35. i.e. periodic or keyboard 3
The databases 32 to 34 are accessed based on commands from the database 32.
The data is read sequentially from 33 and 34 and the data of each base is compared. Here, if it is determined that there is a discrepancy, the abnormal data determining means 42 determines in advance that each database 32 to 3
It is determined whether or not there is an abnormality in the data of any database based on a ratio determined for every 4 or majority logic. If data in a particular database is determined to be abnormal, the abnormal data is corrected by replacing it with data from the database with the highest weighting.

Therefore, according to the configuration of the embodiments described above, for example, in the case of a regular operator (ship owner, captain, or shipper), I
If the D code and password do not all match, the operator will not be determined to be an authorized operator.

If the operator is determined to be an authorized operator, he or she can access all the databases 32 to 34 and display all the data simultaneously and in parallel on the display 36, making it possible to compare the data at a glance, and Data can be changed simultaneously. Even if a general operator destroys or falsifies the data, each database 32 to 3
Since the same data is stored in 4, it is possible to easily discover the state of destruction or the like, and the contents of the database can be easily modified. In addition, if data is destroyed or tampered with, for example, data is compared between each database 32 to 34 at W4 period, and if there is a discrepancy, it is determined which data is abnormal according to the weighting of each database. Since the system determines whether the abnormal data is correct and rewrites the abnormal data with normal data, even a general operator can perform the required office work based on the corrected normal data.

In the above embodiment, two processors 21 and 31 were used, but it can also be easily implemented using one processor. This point also applies to the keyboard. In addition, although the above embodiment performs software processing using a flowchart, the configuration of comparing ID codes and passwords to see if they match, outputting a trigger signal when they match, and accessing the database can be easily done using hard logic. can be realized. Furthermore, each of the memories 24 and 25 can be realized as a single memory by dividing the areas.

In addition, among general operators, the weighting was different for cases where only an ID code and only a password were used, and the accesses were classified into database 32 only access and database 32.33 access, but the processing when only a password was used was removed. Good too. In this case, the database 33 is not necessarily required. In addition, the present invention can be implemented with various modifications without departing from the gist thereof.

(Effects of the Invention) As detailed above, according to the present invention, registered users can be reliably recognized, and data in the database can be checked for destruction, falsification, etc. and easily corrected to normal data. We can provide you with a marine database device.

[Brief explanation of the drawing]

FIG. 1 is a hardware configuration diagram of a marine database device according to the present invention, FIG. 2 is a functional block diagram of an abnormal data correction means, and FIG. 3 is a time chart illustrating a data check operation of the device of the present invention. 10...10 card, 20...marine database, 21.31...processor, 22...card reader, 23...keyboard for password input, 24...
・■D code memory, 25...Password memory, 3
2 to 34...Database, 35...Keyboard,
36...Display, 41...Data comparison means,
42... Abnormal data judgment means, 43... Data correction means. Applicant's agent Patent attorney Takehiko Suzue Figure 2

Claims (1)

[Claims] A memory in which a group of ID codes and a group of passwords are stored in advance, a card reader that reads the ID code from an ID card, an input device into which a password is input, and input data such as ID codes and passwords from these card readers and input devices. Operator determining means for comparing at least one input data with the ID code group and password group of the memory corresponding to the input data, determining whether the operator is a general operator or a regular operator, and outputting a signal of the determination result. and a plurality of databases in which the same data is stored, and the number of accesses is increased within the range of the plurality of databases according to general operators and regular operators based on the signal content of the discrimination result obtained by the operator discrimination means, and the same data is stored. Data checking means for reading data and checking for data destruction, tampering, etc., and comparing the data in each database based on accesses that occur periodically or arbitrarily, and if there is a discrepancy between each data, predetermined weighting is applied. What is claimed is: 1. A marine database device comprising: abnormal data correction means for determining abnormal data according to the following and correcting the abnormal data to normal data.