JPS62210556A - Data base accessing system - Google Patents

Abstract

PURPOSE:To protect an information data, and to prevent malfeasance by storing a level code different depending on the position or the qualification of individual person, on an ID card, and enabling data corresponding to the level code to be accessed. CONSTITUTION:When an ID card 10 is inserted in a card reader 21, the ID code and the level code are read, then being sent to a processor 22. The processor 22 retrieves a code data memory 41 in a data base 40, and decides data memories 42, 43, or 44 possible to be accessed. Next, when a user inputs a prescribed password and a data request using a key pad 23, the processor 22 compares them with a corresponding password in the memory 41, and when they are coincided, the data is read out, and is outputted to a display 24, or a printer 30. Consequently, only the data required for a work can be accessed, thereby it is possible to protect a bit of data information, and to prevent the malfeasance.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a database access method suitable for use in the management and operation of various data associated with computerization in, for example, shipping operations.

[Conventional technology] In recent years, labor saving has been promoted in the shipping industry, and along with this, not only equipment operation and navigation automation, but also luggage storage,
Computerization has also been introduced in office processing operations, including cumulative sum processing, and a wide variety of information has come to be stored in computer databases.However, on the other hand, the following problems have arisen as a result of labor savings: There is. That is,
Because the number of crew members on a ship is small, it is difficult for the crew alone to handle a wide variety of tasks when berthed at a port, etc. Therefore, when berthed, the ship owner's agent is required.

Assistance is received from the shipper's agent or shore support personnel. As a result, a large number of people can freely enter and leave the ship, and there is a risk that the computer system will be used illegally, resulting in significant damage due to theft of data from the database or destruction of the database. therefore,
It is necessary to protect data by making databases containing important data inaccessible to anyone other than specific personnel.

[Problems to be Solved by the Invention] Conventionally, as a means to prevent unauthorized use of computer systems, there is a method that allows access only to the ID card holder who has stored the ID code. is stored one-dimensionally,
All data can be accessed. Therefore, since any data can be read by the ID card holder, it has been difficult to prevent information data from leaking or fraudulent acts.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a database access method that allows access to only data necessary for business operations, protects stored data information, and prevents fraudulent acts with high reliability.

[Means for solving the problems and their effects] The present invention has the following features:
In order to solve the above problems and achieve the purpose, we have created an ID card that stores an ID code for identifying an individual and a level code that differs depending on the individual's status, qualifications, etc., and the ID code stored in this ID card. and a card reader that reads a level code, and a determining means that determines whether or not the ID card is legitimate based on the ID code and level code read by the card reader.
a data memory group that stores data classified based on the level code, and when the judgment means determines that the ID card is a valid ID card, the ID card
Only the data stored in the data memory corresponding to the level code of the person holding the card can be accessed.

[Embodiment] Hereinafter, an embodiment in which the present invention is applied to a ship's computer system will be described with reference to the drawings. FIG. 1 is a block diagram showing the system configuration of an embodiment of the present invention. In Figure 1, the ID card ID issued to a person qualified to use the computer system stores an ID code for identifying the individual and a level code that varies depending on the individual's status, qualifications, etc. In defeat,
As shown in the table below, there is a level 1 card 11 that only the captain and ship owner can have and that has access to all data, a level 2 card 12 that is owned by the navigator and that has access to deck department data and cargo department data, and Level 3 card 13 owned by Sekishu and has access to i Sekibu data
There are four types: Level 4 cards 14, which are owned by cargo owners and cargo handlers and have access to cargo department data.

The terminal 20 has a card reader 21. processor 22
．． It consists of a keypad 23 and a display 24. The card reader 21 has a card insertion slot into which the ID card 1o is inserted, and an ID inserted into the card insertion slot.
Read the ID code and level code stored in the D card ID. The processor 22 is connected to the card reader 21
Compare the ID card ID information, that is, the ID code and level code read at It is determined whether the ID card 1o is valid or not, and if the ID card 1o is valid, an accessible data memory among data memories 42 to 44 to be described later is specified. The keypad 23 is used to input a predetermined password and data request by manual operation, and the requested data is displayed on the display 24 when the ID card 1o is deemed to be valid. Further, the data displayed on the display 24 can be printed out by a printer 30.

The database 40 includes a code memory 41 . Deck department data memory 42. It consists of a fine opening department data memory 43 and a cargo department data memory 44.

The code memory 41 stores the ID card and level code stored in the issued ID card ID, and the corresponding IO
This is to store the password etc. specified by the card holder in correspondence.In addition, the deck department data memory 4
2 stores all the data necessary for the navigator, the line department data memory 43 stores all the data necessary for the engineer, and the cargo department data memory 44 stores all the data necessary for the cargo owner and cargo handler. It stores all kinds of data. Various data stored in these memories 41 to 44 are read out in response to commands from the processor 22.

Next, the operation of this embodiment will be explained with reference to the functional diagram of the processor 22 shown in FIG. 2. When using the Funpyuta system, the user (here assumed to be the owner of the level 1 card 11) inserts a unique ID card ID into the card insertion slot of the card reader 21. Then, the ID code 1' and level code 1' stored in the ID card ID are read by the card reader 21, and these card information are sent to the processor 22.

Then, the processor 22 searches the code memory 41 of the database 4o, retrieves the corresponding ID code 1 and level code 1, and compares these memory information with the card information (step ST1.5T2). and,
If these image information match, the ID card ID is considered to be valid (5T3), and the level code is 1-1'.
The data memories (all data memories 42, 43, 44 in this case) that can be accessed from are determined (Sr4).

The user also uses the keypad 23 to input a predetermined password p' and data request. Then, the processor 22 takes out the password p corresponding to the IO code i and the level code 1 taken out from the code memory 41, and compares both passwords (Sr5). and,
If they match, it is assumed that the user of the ID card ID is the correct person (Sr6). In this way, the requested data can be read from the specified data memories 42 to 44 (Sr1), and the read data is displayed on the display 24 and printed out by the printer 30 if necessary.

In this way, according to this embodiment, the data stored in the data memories 42 to 44, which are classified into multiple categories based on the individual's status, 'R rating, etc., can only be accessed by individuals who have the corresponding status or qualification. There is no possibility that the data stored in these data memories 42 to 44 will be read out by an unrelated person. Therefore, leakage of data information can be prevented and the risk of fraudulent acts is significantly reduced, so that it can be applied to a database access means of a computer system on a ship with great effects.

Note that the present invention is not limited to the above embodiments.

For example, in the above embodiment, ID cards 1° are classified into 4 types depending on the individual's status and qualifications, but the present invention is not limited to this.
It may be classified into category i or higher. Further, although the above embodiment has been described as a database access method for a ship computer system, it goes without saying that the present invention can be applied to any database access method for any computer system. It goes without saying that various other modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As detailed above, the present invention provides a database that allows access to only the data necessary for business operations, protects stored data information, and prevents fraudulent acts with high reliability. Access methods can be provided.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the system configuration of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the operation of the embodiment. 1o...ID card, 20...terminal, 21.
...Card reader, 22...Processor, 23...
Keypad, 24...Display, 30...Printer, 40...Database, 41...Code memory, 42...Deck department data memory, 43...11
Seki department data memory, 44... Cargo department data memory.

Claims (1)

[Claims] An ID card that stores an ID code for identifying an individual and a level code that differs depending on the individual's status, qualifications, etc.; a card reader that reads the ID code and level code stored in the ID card; and a data memory group for storing data classified based on the level code. , if the ID card is determined to be legitimate by the determining means, only the data stored in the data memory corresponding to the level code of the individual holding the ID card can be accessed. Access method.