JPS5842495B2 - library management device - Google Patents

Description

[Detailed Description of the Invention] This invention provides for books with missing numbers (books removed from the register),
The present invention relates to a library management device that facilitates the execution of book collection inspection management work for books and the like existing on bookshelves.

Libraries have a large number of books,
Each book has its own existence that needs to be managed.

In this book collection management, each book is assigned a specific number corresponding to its classification, etc., and this is done using ledgers, cards, etc., but each book is constantly moved.
The number is increasing, and there are also missing numbers due to loss etc.

In library management, it is always necessary to check which books should be present at the time of inspection and check them against the books already on the shelves, etc., as well as newly discovered books that appear to be missing, as well as books that appear to be missing numbers. It is necessary to confirm the books found among the objects and create confirmation data for these books.

However, it would take an extremely large amount of time and effort to perform this kind of work on ledgers or cards.

Therefore, it is being considered to computerize the collection management of these libraries so that searches and inspections can be performed automatically.

That is, a code based on the classification specified for each book is given, this code information is stored and set in the book inventory inspection table, and compared with the missing book code, the code of the book on the shelf, the book on loan, etc. This is to obtain book collection management information.

However, with such methods, the code assigned to each book is generally highly redundant and includes information such as classification, so in the case of a library with a large collection of books, it will inevitably become larger and require more computer resources. Processing is also complicated in small machines.

This invention was made in view of the above points, and even if the number of books in the collection increases significantly, the capacity of the book inspection table is sufficiently small to allow the books actually placed on the shelves and the books being lent to be checked. The purpose of the present invention is to provide a library management device that enables reliable inspection and management of information such as libraries, etc.

An embodiment of the present invention will be described below with reference to the drawings.

First, in the present invention, a series of numbers are assigned to each book, for example, in the order of registration reception, and these numbers are used as a book code for each book.

For each book, a book code is recorded using a bar code or the like, which can be read by a portable reading device and collected and recorded on, for example, a floppy disk.

As shown in the attached drawings, this device includes a missing number book code list memory 11, a shelved book code list memory 12, and a final registered book code memory 13. The missing number book code list memory 11 includes, for example, This is done using a floppy disk or the like, and when a lost book is confirmed, the book code to be marked as missing is continuously recorded using a manual key or the like.

The shelved book code list memory 12 also consists of a floppy disk or the like, and is a record of the barcodes recorded on the books on the bookshelves read and recorded using an optical reader, and includes books that are currently being lent out. It becomes.

The last registered book code memory 13 is updated every time a new book is received, and takes the maximum value among the book codes made up of consecutive numbers.

Therefore, by holding the final registered book code, all registered book codes can be generated by a counter or the like.

The number N1 of missing numbered books is detected from the missing numbered book code list memory 11, and this number N1 is sent to the subtraction counter 14.
Set 1 as the initial count value.

Then, in response to the inspection start command, this counter 1
A count value of 4 is detected by a detection control circuit 15, and in a state where the count value is not "O", a command is given to a code reading circuit 16 to read the missing number book code information at the head from the missing number book code list memory 11.

This read out missing number book code is converted into atsys information by the address conversion circuit 17, drives and controls the write circuit 18, specifies the address of the table memory 19 for checking the book collection, and generates bit "1" information. "1" from part 20
bit information is stored and set in the storage element at the corresponding address.

The write control circuit 18 causes the subtraction counter 14 to read "-" in response to a write operation to the table memory 19.
1" command to perform subtraction, and the detection control circuit 15
Then, in response to the subtraction operation of the subtraction counter 15, the following command is given to the code reading circuit 16, the next missing number book code is read from the missing number book code list memory 11, and the above operation is repeated.

Here, the table memory 19 has a 1-bit storage element corresponding to each book, and its address corresponds to each book.

Then, as described above, bit "1" is written to the address corresponding to the missing numbered book in the table memory 19, and when all the codes stored in the missing numbered book code list memory 11 are read out. , the count value of the subtraction counter 14 becomes rOJ.

When the count value of this counter 14 becomes "0", the detection control circuit 15 gives a command to the next detection control circuit 21.

The detection control circuit 21 detects the count value of a subtraction counter 22, and this counter 22 is initially set to the number N2 of shelved books in the shelved book code list memory 12.

Then, while the count value of the subtraction counter 22 is not "O", the code reading circuit 23 is controlled to set the shelved book code stored in the shelved book code list memory 12 to 1.
Read out one.

The code information of the book on the shelf read by the code reading circuit 23 is converted into address information by the address conversion circuit 24, and the reading circuit 25 is controlled to control the storage bit of the storage element at the corresponding address in the table memory 19. Read information.

At this time, "1" is not written in the corresponding address based on the missing number book code list, and "
When the bit information of "0" is read out, a command is given to the write circuit 26 to write the information of the bit "1" from the "1" information generating section 2γ to that address.

In addition, if "1" has already been written at that address based on the missing book code list, the reading circuit 25 detects the reading of "1" and gives a command to the code detection circuit 28, Code reading circuit 23 at that time
The book code from is detected and written and stored in the found book code list memory 29.

In other words, a book that is registered as a missing book but actually exists on the shelf is recorded as a discovered book.

In this way, in the writing circuit 26 or the code detection circuit 28, a "-1" command is given to the subtraction counter 22 in a state where the processing corresponding to one book on the shelf is completed, and this is detected by the detection control circuit 21. Then, the next book code is read from the shelved book code list memory 12, and the same operation as above is repeated.

This operation ends when the count value of the subtraction counter 22 reaches rOJ, and in the table memory 19, bit information of "1" is stored in all addresses corresponding to the missing numbers and the books on the shelves. The state is set for writing.

When the count value of the subtraction counter 22 becomes "0", this is detected by the detection control circuit 21, and then the next detection control circuit 3
Give command to 0.

This detection control circuit 30 detects the count value of a subtraction counter 31, and the initial count value of the subtraction counter 31 is set to the final registered book code N3 corresponding to the number of registered book codes.

Then, when the count value of the subtraction counter 31 is not "0", the detection control circuit 30 converts the value indicated by the counter 31 as a registered book code into address information in the address conversion circuit 33, and controls the readout circuit 34. The table information in 1-bit units of the table memory 19 is read out sequentially.

Then, the readout circuit 34 determines whether the readout bit information is "0" or "1", and when the "0" bit is detected, the code detection circuit 35 is driven to read the current book code from the code readout circuit 34. It is detected and stored in the unknown book code list memory 36.

When the code detection circuit 35 detects a book code, and when the reading circuit 34 detects a bit of "1", the subtraction counter 31 is decremented by "-1", and the book code is also used as the registered book code. The storage bits of the storage elements corresponding to each of the 19 registered books are inspected to create a new list of unknown books that are not present in both the missing book list and the shelved book list.

This operation ends when the count value of the subtraction counter 31 becomes "O", and the detection control circuit 30 generates an end signal of the library inspection work by detecting this count rOJ.

That is, according to the device configured as described above, in the inspection table memory 19, which is the most important element in the book collection inspection work, a check area of 1 bit per book in the collection is set up to the last registered book. do it.

Therefore, for example, if there are 70,000 registered books, a storage capacity of 8.75 bytes is sufficient.

In other words, the table size is significantly reduced,
This makes it possible to perform checks on each of a large number of registered library books through a simple process.

In addition, the list of missing books and books on shelves necessary for this book checking operation can be constructed using a simple recording means, and the work efficiency is good.

As described above, according to the present invention, it is possible to inspect and manage a sufficiently large number of books with a very small and simplified device.

[Brief explanation of the drawing]

The accompanying drawing is a configuration diagram illustrating a library management device according to an embodiment of the present invention. 11... Missing number book code list memory, 12.
...Shelf book code list memory, 13...
・・Final registered book code memo IJ, 14, 22, 31・
...Subtraction counter, 15, 21, 30...
・Detection control circuit, 16, 23...Code reading circuit, 1γ, 24°33...Address conversion circuit, 18, 26...Writing circuit, 19...
...Table memory for library inspection, 25, 34...
. . . Readout circuit, 29 . . . Found book code list memory, 36 . . . Unknown book code list memory.

Claims (1)

[Claims] 1. A table memory for inventory inspection in which a 1-bit memory element corresponds to each book, a missing number code list memory that stores missing books with a book code in which each book corresponds to a series of numbers, and a memory that exists on the bookshelf with the same book code. The shelved book code list memory that stores the shelved books to be stored and the code list memory of the missing numbers and shelved books are read out as address information, respectively, and check bit information is written to each storage element corresponding to the read address of the table memory. means for sequentially reading storage elements of a table memory in which check bit information is written, and reading and detecting addresses of storage elements to which check bit information is not written; A library management device characterized in that addresses of unwritten storage elements can be detected as an unknown book code list.