JPS5842494B2 - 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.

In other words, each book is given a code based on the specified classification, etc., and 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. , 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 accompanying drawings, this device is equipped with a missing book code list memory 11, a shelved book code list memory 12, and a final registered book code memory 13. The missing book code list memory 11 includes, for example, It consists of 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 address information by the address conversion circuit 1γ, 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. Part 20) et al.
1" 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.
11 command is given and subtracted, 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 "O".

When the count value of this counter 14 reaches "O", 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, when the count value of the subtraction counter 22 is not rOJ, the code reading circuit 23 is controlled and the shelved book code stored in the shelved book code list memory 12 is set 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 according to the missing number book code list,
When the "O" bit information is read out, a command is given to the write circuit 26 to write the bit "1" information from the "1" information generating section 2γ to that address.

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

In other words, a book that actually existed even though it was registered as a missing book is recorded as a discovered book.

In this way, in the writing circuit 26 or the code detection circuit 2B, a "-1" command is given to the subtraction counter 22 in a state where the process of enshrining 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. is set to be written.

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 the 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 as a registered book code to address information in the address conversion circuit 33, controls the readout circuit 34, and memory 19
1-bit unit table information is read out sequentially.

Then, the reading circuit 34 determines whether the read bit information is "0" or "1", and when the "O" bit is detected, the code detection circuit 35 is driven to read the current book code from the code reading circuit 32. It is detected and stored in the unknown book code list memory 36.

Then, 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 set to "-1", and based on the registered book code, the table The storage bins of the storage elements corresponding to each registered book in the memory 19 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 for the library inspection work when the count value "O" is detected.

That is, according to the device configured as described above, in the inspection table memory 19, which is the most important element in 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 comfortable and small,
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, 1B, 26...Writing circuit, 19...
... Table memory for library inspection, 25.34...
...Reading circuit, 29...Found book code list memory, 36...Unknown book code list memory.

Claims (1)

[Claims] A book inventory inspection table memory in which each 11-bit memory element corresponds to a figure number, and a missing number book that stores missing numbered books and books on the shelves using figure number codes in which each figure number corresponds to a series of numbers. means for sequentially reading book codes from a code list memory, a shelved book code list memory, and the missing book code list memory, and writing and storing an address corresponding to the code as a check bit in a storage element of the table memory;
After writing of the check bit corresponding to the missing number code is completed, the book code is sequentially read from the shelved book code list memory and the table memory is read at the address corresponding to this code to detect the presence of the check bit; A means for storing a book code corresponding to the address as a found book code by detecting the presence of the bit, and writing and setting a check bit in a storage element of the table memory where the check bit did not exist by means for detecting the presence of the check bit. and means for creating an unknown book list in correspondence with addresses of storage elements whose check bits are not stored in a table memory.