JP2500434B2 - Inspection condition output device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inspection condition output device, and more particularly to test items necessary for testing the performance of electric parts such as printed boards on which predetermined parts are mounted and wired, and their measurement conditions. The present invention relates to an inspection condition output device for outputting according to an electric component.

[0002]

2. Description of the Related Art A conventional inspection condition output device is, for example,
As shown in FIG. 4, condition code reading means 1 for reading and outputting an identification code such as a bar code or the like that is previously displayed on a test target product such as a target electric component, and the identification codes for all test target products. And the test item and the test condition are associated with each other, the external storage means 4 is stored in advance in the unit of the identification code, and the condition code reading means 1 described above.
When the identification code is output from the storage control means 20, the storage control means 20 receives the identification code and reads out and outputs the test item and the test condition stored in association with the input identification code by referring to the external storage means 4, It comprises a setting condition output means 6 for editing the output of the storage control means 20 into a predetermined format and outputting it to the outside.

In the apparatus of FIG. 4, when the condition code reading means 1 reads the identification code attached to the DUT and outputs it as an electric signal to the storage control section 20, the storage control section 20 causes the external storage section 4 to read. With reference to, the test items and associated test conditions stored in association with the corresponding identification code are read out and output to the setting condition output means 6.

The setting condition output means 6 edits the input test item and its test condition into a predetermined format and outputs it to a test device (not shown).

[0005]

The above-described conventional inspection condition output device reads the test items and the test conditions of the DUT by referring to the external storage device 4, so that the types of the DUT increase. However, there is a drawback in that it takes a lot of time to read the corresponding test item and test condition.

An object of the present invention is to provide a storage section for associating the identification number, the test item and the test condition corresponding to the identification code, with a frequency for reading the identification code of the DUT, which is frequently read. It is possible to read the test items and test conditions for a large number of DUTs in a short time, and to shorten the read time for the test items and test conditions for all types of DUTs. An object is to provide an inspection condition output device.

[0007]

In the inspection condition output device of the present invention, the identification code displayed on the DUT is read by the condition code reading means, and the test item and the test condition corresponding to the identification code are first read. In the inspection condition output device for reading out and outputting the information to the outside by referring to the storage means, a second condition in which the frequency at which the identification code is read, the test item associated with the identification code, and the test condition are associated and stored for each identification code. Each time the identification code is output from the storage means and the condition code reading means, the second storage means is referred to in the descending order of the frequency to store the test item and the test condition associated with the corresponding identification code. If it is, the content is read and output, and the frequency update signal designating the identification code is output to output the identification code corresponding to the second storage means. Is stored, the first storage means is referred to, the test item and the test condition corresponding to the input identification code are read out and output, and if there is a space in the second storage means, the identification code is output. Along with writing the read test item and test condition, the stored contents relating to the identification code having the smallest frequency are erased, and the input identification code, the test item and the test read from the first storage means. A storage control means for writing the condition and the erased area into the erased area; and an updating means for increasing the content of the frequency corresponding to the corresponding identification code in the second storage means by 1 when receiving the frequency update signal. It is configured.

[0008]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the inspection condition output device of the present invention.

As shown in FIG. 1, the inspection condition output device of the present embodiment has the condition code reading means 1 and the external storage means 4 already described with reference to FIG. An internal storage means 3 for storing the identification code, the referred frequency, the inspection item and the inspection condition for the DUT having the above-mentioned identification code in association with each other for the above-mentioned identification code, and a frequency update signal. With reference to the internal storage means 3 described above, the frequency update means 5 for updating the stored content, the setting condition output means 6 already described in FIG. 4, and the output of the condition code reading means 1 are input. A storage control in which desired test items and their test conditions are read out from the internal storage means 3 or the external storage means 4 and output to the setting condition output means 6, and the above-mentioned frequency update signal is output as necessary. And a stage 2.

FIG. 2 is an explanatory diagram showing the stored contents of the internal storage means 3 shown in FIG. As shown in FIG.
In the internal storage device 3, the identification code assigned to each DUT, the test item and the test condition are stored in association with each other, and the identification code is stored in the past. The frequency, which is the number of times of reference, is stored in association with each other.

FIG. 3 is a flow chart for explaining the operation of the inspection condition output device shown in FIG.

The operation of the inspection condition output device shown in FIG. 1 will be described below with reference to FIG.

In FIG. 1, the condition code reading means 1 is
The display part such as a bar code displayed at a predetermined position of the DUT is sequentially photoelectrically converted and read, and is output to the storage control means 2 as an identification code (step 1). Hereinafter, the step is abbreviated as S. To do.

The storage control means 2 refers to the internal storage means 3 for the inputted identification code, and determines whether or not the test item and the test condition relating to the corresponding identification code are stored in order from the highest frequency. If it is searched (S2) and stored, the content is read (S3), output to the setting condition output means 6, and a frequency update signal designating an identification code is output to the frequency update means 5 (S).
4).

Upon receiving the frequency update signal, the frequency updating means 5 updates the frequency of the corresponding identification code in the internal storage means 3 to a value obtained by adding 1 to the frequency stored until then (S5). .

The test item and the test condition input to the setting condition output means 6 in S3 are edited by the setting condition output means 6 in a predetermined format and output to the outside (S6).

Further, in S2 described above, when the test item and the test condition relating to the corresponding identification code are not stored in the internal storage means 3, the storage control unit 2 refers to the external storage means 4 and applies them. The test items and test conditions associated with the identification code are read (S7),
It is output to the setting condition output means 6 (S8).

Subsequently, the storage control unit 2 has the internal storage means 3
It is checked whether or not there is a vacant area (S9), and if there is a vacant area, the same contents as output to the setting condition output means 6 are stored together with the identification code and the frequency 1 (S9).
11).

If there is no empty area inside in the above-mentioned S9, the one having the smallest frequency is selected from the stored contents in the internal storage means 3 and is associated with the identification code which is the corresponding data. The test item and the test condition to be erased are erased (S10), and the same test item as that output in S8, the test condition, the identification code corresponding to the test item, and the data having the frequency of 1 are written in the erased area. (S11).

Therefore, if the identification code read out from the inspected product has a high read frequency, the internal storage means 3 is first referred to in a short time, and the corresponding test item and test condition are read out in a short time. Become.

Here, the number of identification codes stored in the internal storage means 3 is set to be smaller than the number of identification codes stored in the external storage means, and the ratio thereof is appropriately set so that the identification codes can be obtained. It is possible to minimize the time required from reading to reading related test items and test conditions.

[0023]

As described above, in the inspection condition output device of the present invention, the test item and the test condition relating to the identification code that has been read out in the past with a large frequency are stored separately from the external storage means.
Further, when the identification code is stored in the internal storage means and read out, it is necessary when the test items and the test conditions relating to a large number of identification codes are sequentially output by referring to the internal storage means. This has the effect that the time to perform can be stochastically made shorter than in the case of reading by a conventional device of this type.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of an inspection condition output device of the present invention.

2 is an explanatory diagram of stored contents of an internal storage device shown in FIG. 1. FIG.

FIG. 3 is a flowchart showing the operation of the apparatus shown in the embodiment of FIG.

FIG. 4 is a block diagram showing an example of a conventional device of this type.

[Explanation of symbols]

 1 Condition Code Reading Means 2 Storage Controller 3 Internal Storage Means 4 External Storage Means 5 Frequency Update Means 6 Setting Condition Output Means

Claims (2)

(57) [Claims] 1. An inspection in which an identification code displayed on a DUT is read by a condition code reading means, and a test item and a test condition corresponding to this identification code are read out by referring to a first storage means and output to the outside. In the condition output device, the identification code is read from the condition code reading unit and a second storage unit that stores the frequency at which the identification code is read, the test item associated with the identification code, and the test condition in association with each other. Each time it is output, the second
When the test items and test conditions associated with the corresponding identification code are stored by referring to the storage means in descending order of the frequency, the contents are read and output, and the frequency update signal designating the identification code is output. When the identification code corresponding to the second storage means is not stored, the first storage means is referred to and the test item and the test condition corresponding to the input identification code are read out and output. If there is a free space in the storage means, the read test item and test condition are written together with the identification code, and if there is no free space, the stored content relating to the identification code having the smallest frequency is erased and the input identification code and the Storage control means for writing the test items and test conditions read from the first storage means into the erased area;
An inspection condition output device comprising: an updating unit that increases the content of the frequency corresponding to the corresponding identification code in the second storage unit by 1 when the frequency update signal is received. 2. The inspection condition output device according to claim 1, wherein the storage capacity of the second storage means is smaller than the storage capacity of the first storage means.