JPH0520149A - High speed retrieving/reading-out system in cad system - Google Patents

Abstract

PURPOSE:To retrieve the number of the latest versions of a model from a data base (DB) at a high speed, and also, to execute a read-out processing of the latest version number model at a high speed. CONSTITUTION:The system is constituted of a designating means 1 for deciding designation of the number of specific versions or designation of the number of the latest versions at the time of designation of the number of versions, at the time of storing a model in a DB and reading it out, a version number converting means 2 for converting a value obtained by subtracting the inputted number of versions from the maximum value of the allowable number of versions, as a numerical value of a DB management model name, and converting the numerical value of the DB management model name, a model name converting part 3 for assembling the DB management model name, based on the input model name and the numerical value from the designating means, and decomposing the DB management model name into the input model name and the numerical value, and a model name retrieving part 4 for retrieving successively the DB by the DB management model name, and fetching the DB management model name detected first.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CAD system in which a model having the latest version number is searched at high speed from a database in which model names are managed in alphabetical order, and a reading process is speeded up. Regarding In a CAD system, it is often the case that an input model name is the same due to a design change or the like, and it is desired to manage a plurality of items in the same database, and the version number is used as a management means for the plurality of items. Therefore, the input model name is, for example, A, and the version number is, for example, 2 and is given as the database management model name. 2 and so on
A method has been proposed in which the same database is managed by making the database management model name different if the version number is different even if the input model name is the same.

By the way, there are two methods for the user to actually specify the version number for the model name by using the system: to specify a specific version number and to specify the latest version number. In fact, the latter is often the case. Further, in the entire design, the process of reading or storing the model from the database is frequently performed, and therefore, there is a strong demand for speeding up the storage / reading process in order to shorten the design period.

[0003]

2. Description of the Related Art FIG. 7 is an explanatory diagram of a conventional technique. Reference numerals 11 and 15 are displays, 12 is a model name search unit inside the system, and 13 is a database of files and the like. As shown in the figure, model names such as B and
The latest number is displayed as the version number. In the conventional management of the input model name and version number, for example, the model name search unit 12 assigns, for example, 2 to the input model name B as the version number,
Database management model name B. 2. Even if the input model name is the same, if the version number is different, the database management model name is made different so that the same database is used for management.

In this conventional method, the database management model names are in alphabetical order with the latest version number last. That is, in this example, B. 1, B. Two
B. The order number is 3, and the latest version number of the input model name B is the last 3. Therefore, the database 13 in the figure,
When searching for the latest one existing in the database at the time of storing or reading, like the process in 14, it is necessary to perform a process of sequentially searching from the beginning. As shown in FIG. 1 → B. 2 → B. 3 are stored in this order, and B. Since 3 is the latest version, add 1 to this and add B.3. 4 is the next latest database management model name.

[0005]

Therefore, in the conventional method as described above, the latest version is stored at the end. Therefore, as the version number increases, the number of searches corresponding to the version number increases and the latest version is stored. It was an obstacle to speeding up the reading process of several models. The object of the present invention is to convert the reading order so that the storage order of the database management model name is from the latest one, so that when the model of the latest version of a certain input model name is read from the database, The model at the top of the database can be read with the corresponding database management model name, the latest version number of the model can be searched at high speed from the database, and the reading process of the latest version number model can be speeded up. Especially.

[0006]

FIG. 1 illustrates the principle of the present invention. In the present invention, the specifying means 1 in the display can specify the latest version number in addition to the method of specifying a specific version number as a method of specifying the version number when storing and reading the model in the database. it can. The version number conversion means 2 performs conversion so that the larger the numerical value indicating the version number, the newer the content, and conversely, the smaller the numerical value, the newer the content. At this time, the value obtained by subtracting the entered version number from the maximum value of the permitted version number is converted as a numerical value for the model name (database management model name) managed in the database, and conversely Performs the process of converting the numerical value of the name into the version number. The model name conversion unit 3 uses the database management model name B.B.E., based on the input model name input by the specifying unit 1 and the input numerical value (for example, 4). 4, the database management model name is decomposed into the input model name and the numerical value.
The model name search unit 4 sequentially searches the database 5 by the database management model name, and extracts the first found database management model name.

[0007]

2 is an explanatory diagram of storage and reading according to the present invention, and FIG. 3 is an explanatory diagram of version number conversion processing according to the present invention. Figure 2
In the model name conversion unit 3 based on the input model name input when storing the model name and the numerical value converted by the version number conversion unit 2 so that the new version number is at the top. Assemble and store the database management model name. When the latest version of a certain input model name is read from the database, the first model in the database can be read with the database management model name corresponding to the input model name. As a result, it is possible to reduce the process of sequentially searching for the latest version number when searching and reading in the CAD system, and as a result, the latest version number of the model can be searched at high speed from the database. It is possible to speed up the process of reading out.

As shown in FIG. 3, the database (DB) is a value obtained by subtracting the input version number from the maximum version number (in this example, the maximum allowable version number is 9) in the version number conversion unit 2.
The version number of the management model name. For example, the version numbers 1, 2, and 3 of the input model name A are obtained by subtracting 1 from 9 when the maximum value is 9 in the database management model name.
8 as the database management model name, and the database management name A. 7 and A. It becomes 6. A. in alphabetical order 6 → A. 7 → A. The order is 8 and the new version is always managed at the beginning.

FIG. 4 is a flow chart of processing when storing according to the present invention. As shown in the figure, when storing the model in the database with the input model name and version number specified, whether the version number is specified in step 1 is the specification of the specific version or the specification of the latest version. Find out. In this case, if the specific version number is specified, the version number conversion unit 2 subtracts the input version number from the maximum allowable version number in step 2, and the subtracted value is used as the database management model name. The database management model name is assembled in the model name conversion unit 4 based on the input model name in step 3 and the value converted in step 2, and the model is created using this database management model name in step 8. Store in database.

On the other hand, if the method of designating the version number in step 1 is to specify the latest version number, in step 4, the minimum value (eg, 1) allowed as the version number is set in the version number,
Based on the input model name in step 5 and the numerical value (1) set in step 4, the model name conversion unit 4 assembles the database management model name, and the database is searched by the database management model name assembled in step 5 in step 6. Then, the first found database management model name is read out, and in order to be managed before the model name read out in step 6 in step 7, 1 is subtracted from the version number value of this database management model name. A value is obtained, and based on the input model name and the value converted in the process 7, the model name conversion unit assembles the database management model name, and in step 8, the model is stored in the database with this database management model name. With the above storage processing, the new version number is always managed at the beginning, and the beginning of the database management model name is always the latest.

FIG. 5 is a flow chart of the reading process of the present invention. That is, this is the case where the input model name and version number are specified and the model is retrieved from the database. Steps 1 to 6 are the same as the processing flowchart of FIG. That is, the method for specifying the version number is checked in step 1, and if the specific version number is specified, the value obtained by subtracting the input version number from the maximum value of the version number in the version number conversion unit 2 is determined in step 2. , The version number for the database management model name is converted, and the model name conversion unit 3 assembles the database management model name based on the input model name in step 3 and the value converted in step 2 Read from the model database with the database management model name.

On the other hand, if the latest version number is specified by checking the method of specifying the version number in step 1, the minimum value allowed as the version number is entered in step 4 and the version number is entered in step 5. Based on the model name and the value set in step 4, the model name conversion unit assembles the database management model name, and in step 6 the database is searched to read the database management model name found first. The database management model reads the model from the database. In this way, when searching for the latest version of an input model, the model at the beginning of the corresponding database management model name is the latest, and it is possible to reduce the number of processing operations that are performed in the conventional order. It is possible to speed up the reading process by specifying the number.

[0013]

FIG. 6 is a processing flowchart of an embodiment of the present invention. This example shows a procedure for retrieving the latest version of a component from the database in the printed board design CAD. Due to the rapid progress of parts in recent years due to the shortening of product cycle and the progress of product manufacturing technology, printed circuit board design C
In AD, the parts in the database are managed according to the version number.

In the designating means 1 described above, the input component pattern name is set to IC1, for example, and the latest version number is input. Then, when storing or retrieving the part pattern name in the database, in addition to a method of specifying a specific version as a method of specifying a version number, a method of specifying the latest version number (the higher the number, the newer the version number) can be specified ( In this example, the latest version number which specifies 0 as the version number) is used for the determination. In this case, specify the latest version number. The component pattern name conversion unit assembles the database management component pattern name based on the component pattern name and the numerical value input by the designating means 1, and conversely decomposes the database management component pattern name into a numerical value. The component pattern name search unit sequentially searches the database for the database management component pattern name, and reads the first database management component pattern name (if the specified database management component pattern name exists in the database, it is the same as the read one). become).

In the flowchart, when the component pattern name and the version number are designated and the component is read from the database, when the latest version number is input in step 1, the method of designating the version number is checked in step 2 and the latest version number is checked. By specifying, the minimum value (here, 1 as an example) allowed as the version number is input in step 3, and the input component name (IC) and step 2 are set in step 3 in step 4. Based on the numerical value 1, the component pattern name conversion unit searches the database for the component pattern in the component pattern name search unit in Step 5 based on the database management component pattern name. In Step 6, the model is retrieved from the database. read out.
When retrieving the latest version of this input component pattern name, the component pattern (IC.6 in the figure) at the beginning of the corresponding database management component pattern name is the latest, and the retrieval is performed in sequence, which was conventionally performed. Since it is possible to reduce the processing to be performed, it is possible to speed up the read processing by designating the latest version number.

[0016]

As described above, according to the present invention, the model with the latest version number of a certain input model name is converted into a database by converting the stored model names in the database so that the version numbers are newest first. When reading from, the model at the top of the database with the database management model name corresponding to the input model name may be read. Therefore, since the model name can be read out without searching for the latest version number each time, the latest version model can be retrieved at high speed from the database, and the latest version model can be retrieved from the database required for the CAD system. It contributes to the performance improvement of the reading process.

[Brief description of drawings]

FIG. 1 is a principle configuration diagram of the present invention.

FIG. 2 is an explanatory diagram of storage and reading according to the present invention.

FIG. 3 is an explanatory diagram of version number conversion processing of the present invention.

FIG. 4 is a flowchart at the time of storage of the present invention.

FIG. 5 is a flowchart at the time of reading according to the present invention.

FIG. 6 is a flowchart of an embodiment of the present invention.

FIG. 7 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1 ... Designating means 2 ... Version conversion unit 3 ... Model name conversion unit 4 ... Model name search unit 5, 6 ... Database

Claims (1)

Claims: 1. When storing / reading a model in a database, a designation means for deciding whether to designate a specific version number or the latest version number when designating the version number ( 1)
And, as the numerical value corresponding to the version number, the smaller the numerical value is, the newer the content is, the value obtained by subtracting the input version number from the maximum version number allowed is the model name managed in the database. Based on the version number conversion means (2) for converting the numerical value of the database management model name and converting the numerical value of the database management model name into the version number, and the input model name and numerical value input by the designating means,
A model name conversion unit (3) that assembles the database management model name, and further decomposes the database management model name into an input model name and a numerical value, and sequentially searches the databases by the database management model name to find the first database management A model name retrieval unit (4) for retrieving a model name is provided, and when storing the model name, the input model name and the numerical value converted by the version number conversion unit so that the new version number comes first In addition, when the database management model name is assembled by the model name conversion unit and the model of the latest version of a certain input model name is read from the database, the database management model name corresponding to the input model name is the first one in the database. A high-speed retrieval / reading method in a CAD system characterized by reading a model.