JPH08161416A - Bar code scanner reading inspection device - Google Patents

Abstract

PURPOSE: To easily and exactly perform reading inspection of a bar code pattern by automatically moving and holding plural bar codes for test, to which a prescribed inspection standard is guaranteed, from a bar code scanner without necessity to visually compare the code data of bar codes for test to inspect them. CONSTITUTION: This device is provided with a scanner information recognizing part 2 for recognizing the input information of a bar code 6 for test read by a bar code scanner 1, bar code information comparing part 3 for comparing the read code data recognized by the scanner information recognizing part 2 with the code data of this bar code 6 for test, control part 4 for starting or stopping the beam output of the bar code scanner 1 and controlling the test order of the bar code 6 for test, bar code moving and holding part 5 for the bar code 6 for test, inspection bar code order storage part 7 for the bar code 6 for test, beam control storage part 8 for the bar code scanner 1, and key input part 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar code scanner reading / inspecting device for inspecting whether the contents of a bar code can be read accurately.

[0002]

2. Description of the Related Art In a bar code scanner, it is necessary to carry out a bar code reading test at the time of final assembly inspection. The conventional bar code scanner reading test has the following two methods. (1) Using a test bar code formed by printing a bar code pattern and its code data on a chart paper, the bar code scanner reads the code data of the test bar code, and the recognition result and the test bar code are read. A method of inspecting the bar code scanner by inspecting the bar code scanner by comparing and judging the coincidence / non-coincidence with the above code data.

(2) As disclosed in Japanese Unexamined Patent Publication No. 5-298473, the test bar code generated by the bar code pattern generating means is displayed on the display means,
By reading the test bar code with the bar code scanner, the read code data is recognized by the scanner information recognition means, and the recognized code data is converted into the test bar code by the bar code comparison means. A method of automatically comparing with code data, and automatically performing a reading inspection of the bar code scanner based on the match / mismatch.

[0004]

However, in the prior art (1), the code data corresponding to the bar code pattern is often a large number of random numbers arranged from a human's point of view. Visually comparing the displayed code data with the code data of the test barcode has a problem that it is very troublesome and easily mistaken.

In the prior art (2), the bar code generated by the bar code pattern generating means is displayed on the display means as a test bar code. As the display means for the test bar code, In the case of using the liquid crystal display section described as an example of Japanese Patent Laid-Open No. 5-298473, changes in the supply voltage to the liquid crystal display section and external noise to the electric signal output from the bar code generating means to the liquid crystal display section. As a result, compared with the pre-printed test bar code used in the prior art (1), variations occur each time the bar size, contrast, etc. are displayed, and the prescribed inspection standard for the test bar code is There was a problem that could not be guaranteed.

The present invention has been made in view of the above problems of the prior art, and it is not necessary to inspect the code data of the test bar code by visual comparison, and the bar code scanner guarantees a predetermined inspection standard. It is an object of the present invention to provide a bar code scanner read / inspection device that automatically moves and holds a plurality of generated test bar codes and can easily and accurately perform a bar code pattern read / inspection.

[0007]

In order to solve the above-mentioned problems, the invention of claim 1 is to provide the code data of one or more test bar codes and the bar code scanner recognition means for the test bar codes. In a bar code scanner reading / inspecting device having bar code information comparing means for reading and recognizing code data, a bar code scanner emits a test bar code according to a comparison result in the bar code information comparing means. Control means for starting or stopping the output of the beam that is
Control means capable of moving one or a plurality of the test bar codes to a position for receiving a beam projected from the bar code scanner and a position for avoiding the beam projection according to a comparison result in the bar code information comparing means. It is configured to have and.

The invention according to claim 2 is based on claim 1 and has a means for arbitrarily setting the light emission time, the interval, and the number of times of light emission of the beam according to the type of the test bar code. .

Further, the invention of claim 3 is based on the invention of claim 1 and has means for setting the movement of the test bar code to be read and inspected in an arbitrary order.

FIG. 1 is a system configuration diagram of the present invention.
The bar code scanner reading / inspecting device of the present invention is shown in FIG.
As shown in FIG. 2, the barcode scanner 1, the scanner information recognition unit 2 that recognizes the input information of the test barcode 6 read by the barcode scanner 1, the read code data recognized by the scanner information recognition unit 2, and the A bar code information comparing section 3 for comparing with the code data of the test bar code 6; a control section 4 for activating or stopping the beam output of the bar code scanner 1 and controlling the test order of the test bar code 6; A bar code moving / holding unit 5 that moves and holds the test bar code 6, and an inspection bar code order storage unit 7 that stores the inspection order of the test bar code 6.
And a beam control storage unit 8 of the bar code scanner 1 and a key input unit 9.

[0011]

According to the test order of the inspection bar code order storage unit 7, the inspection bar code is divided into the read test target and the non-target test bar code 6, and the control unit 4 and the bar code movement holding unit 5 detect the test target. The test bar code 6 is automatically moved and held at a predetermined position in the inspection area, and the test bar code 6 not inspected is automatically moved and held at a predetermined position outside the inspection area.

Next, in the bar code scanner 1, according to the beam control method of the beam control storage unit 8, the control unit 4 causes the test bar code 6 to be inspected to have a predetermined time, interval, and number of times. The beam output is started and stopped by, and the reflected beam from the test bar code 6 is read by the photoelectric sensor to read the code data, and the read code data is recognized by the scanner information recognition unit 2 and The recognized code data is compared with the code data of the test bar code 6 to be inspected by the bar code information comparison unit 3, and whether the read performance of the bar code scanner 1 is automatically determined by the match / mismatch. Be judged. The above read inspection flow is sequentially performed on a plurality of test barcodes 6 according to the test order of the inspection barcode order storage unit 7.

The key input unit 9 sets and changes the contents of the inspection bar code order storage unit 7 and the beam control storage unit 8.

[0014]

[Embodiment 1] FIG. 2 shows an external configuration of a reading inspection apparatus of this embodiment. In FIG. 2, 1 is a bar code scanner, 13 is a scanner fixing part fixedly mounted on a base 12, and this scanner fixing part 13 is for positioning the bar code scanner 1 by fitting it into a box-shaped upper part. (Or, the bar code scanner 1 may be held while being engaged with a holding device or a positioning pin by a toggle clamp mechanism). 6a, 6b and 6c are test bar codes. Reference numerals 5a, 5b and 6c are linear movement type bar code movement holding portions fixed to the base 12, and test bar codes 6a, 6b and 6c are respectively attached to the rod (moving shaft) of the air cylinder (or hydraulic cylinder). The pasted board is fixed. Here, the test barcode 6a is provided on a part of the moving shaft of the barcode moving holding unit 5a, and the test barcodes 6b, 6b.
c is provided on a part of the moving shaft of each of the bar code moving holding units 5b and 5c. Reference numeral 10 is an inspection control apparatus main body, 11 is a scanner information recognition / comparison apparatus main body, and both are electrically connected. In addition, the inspection control device body 10
Is connected to the bar code moving and holding portions 5a, 5b and 5c. Further, a key input section 9 and a liquid crystal display section 15 are provided on the upper surface of the inspection control apparatus main body 10, and a liquid crystal display section 16 is provided on the upper surface section of the scanner information recognition / comparison apparatus main body 11. . Here, the scanner information recognition / comparison device main body 11 is provided with the scanner information recognition unit 2 and the barcode information comparison unit 3 shown in FIG. Further, the inspection control device body 10 is provided with the control unit 4, the inspection barcode order storage unit 7 and the beam control storage unit 8 shown in FIG.

Next, the operation of this embodiment will be described. At the time of bar code scanner reading inspection, the bar code scanner 1 is mounted and fixed on the scanner fixing portion 13, and
It is electrically connected to the scanner information recognition / comparison device 11. When the light emission time, the interval, and the number of times of light emission, which are the light emission conditions of the beam from the bar code scanner 1, are input to the key input unit 9, the inspection control device main body 10 stores the light emission conditions of the beam. Further, when the test order of the test barcodes 6a, 6b, 6c is input through the key input unit 9, the test control apparatus main body 10 stores the test barcode order. And the key input section 9
When the reading inspection start is input at, the inspection control device main body 10 takes out the stored test order and issues an instruction to the bar code movement holding units 5a, 5b, 5c. Then, according to the test order, the bar code movement holding section 5a moves the test bar code 6a to be inspected to a position where the beam projection from the bar code scanner 1 is received, and the bar code movement holding section 5b. , 5c move and hold the test bar codes 6b, 6c which are not inspected to the positions where beam projection from the bar code scanner 1 is avoided. Next, the inspection control device body 10 issues an instruction to project the beam onto the test bar code 6a to be inspected by the bar code scanner 1 in accordance with the stored beam emission conditions. Then, the read code data is the scanner information recognition / comparison device main body 11
Is recognized and is simultaneously compared with the code data of the test bar code 6a, and a read / write read / write message (OK / NG) of the match / mismatch is displayed on the liquid crystal display unit 16. The test bar codes 6b and 6c are also inspected in the same manner, and a readability message (OK / NG) is displayed on the liquid crystal display unit 16.

When the beam input condition and the test order of the test bar codes 6a, 6b, 6c are input to the liquid crystal display section 15 on the upper surface of the inspection control apparatus body 10 by the key input section 9, , The entered contents are displayed.
Further, the liquid crystal display unit 15 displays a test barcode No. to be inspected during the reading inspection. Is displayed, and when the inspection is completed, a pass / fail message of the comprehensive inspection result (pass / fail)
Is displayed. It should be noted that the pass / fail message of the comprehensive search result on the liquid crystal display unit 15 is a readability message (pass / fail) of each of the test barcodes 6a, 6b, 6c displayed on the liquid crystal display unit 16, and all are “O”.
In the case of “K”, “pass” is displayed, and in the case of even “NG”, “fail” is displayed.

Further, when an inspection stop is input through the key input unit 9 during the reading inspection, the inspection control device body 10 stops the projection of the beam from the bar code scanner 1 and performs a test. An instruction is issued to return the bar codes 6a, 6b and 6c to the initial position of the inspection by the bar code moving and holding sections 5a, 5b and 5c, respectively, and the liquid crystal display section 15 displays a message for stopping the inspection.

According to the present embodiment, it is not necessary to carry out the inspection by the visual comparison, which is troublesome and erroneous in the code data at the time of the reading inspection, unlike the conventional case. Further, a plurality of test bar codes 6a, 6b, 6c, which are guaranteed as a test chart with a predetermined inspection standard, are automatically moved and held, so that the bar code pattern can be easily and accurately read and inspected.

[0019]

As described above, according to claim 1 of the present invention, the output of the beam emitted from the bar code scanner toward the test bar code is output according to the comparison result in the bar code information comparing means. Control means for starting or stopping, and a position for receiving one or more of the test barcodes according to the comparison result in the barcode information comparing means and a position for avoiding the beam projection of the beam from the barcode scanner. Since there is a control means that can be moved to, there is no need to inspect the code data of the test bar code by visual comparison, and a plurality of test bar codes that have a specified inspection standard guaranteed by the bar code scanner. Can be automatically moved and held, and the barcode pattern reading inspection can be performed easily and accurately.

According to the second aspect of the present invention, the light emission time of the beam, the interval,
Since the means for arbitrarily setting the number of times of light emission is provided, when a plurality of test barcodes are continuously inspected, the inspection corresponding to the test barcodes can be performed accurately and efficiently.

Further, according to the invention of claim 3, means for setting the movement of the test bar code to be read and inspected in an arbitrary order is provided, so that a plurality of test bar codes can be efficiently inspected. You can

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a bar code scanner reading inspection device of the present invention.

FIG. 2 is a perspective view showing an external configuration of a bar code scanner reading / inspecting apparatus according to the first embodiment of the present invention.

[Explanation of symbols]

 1 Bar Code Scanner 2 Scanner Information Recognition Unit 3 Bar Code Information Comparison Unit 4 Control Units 5a, 5b, 5c Bar Code Movement Holding Units 6a, 6b, 5c Test Bar Code 7 Inspection Bar Code Sequence Storage Unit 8 Beam Control Storage Unit 9 Key input unit 10 Inspection control device body 11 Scanner information recognition / comparison device body 15 and 16 Liquid crystal display unit

Claims (3)

[Claims] 1. A bar code having a bar code information comparing means for comparing code data of one or a plurality of test bar codes with code data obtained by reading and recognizing the test bar code by a bar code scanner recognizing means. In the scanner reading / inspection device, control means for starting or stopping the output of the beam emitted from the barcode scanner toward the test barcode according to the comparison result by the barcode information comparing means, and the barcode information comparison. And a control means capable of moving one or a plurality of the test bar codes to a position for receiving a beam projected from the bar code scanner and a position for avoiding the beam projection according to a comparison result in the means. Characteristic bar code scanner reading inspection device. 2. The bar code scanner reading / inspecting apparatus according to claim 1, further comprising means for arbitrarily setting a light emission time, an interval, and a light emission frequency of the beam in accordance with the type of the test bar code. 3. The bar code scanner read / inspection apparatus according to claim 1, further comprising means for setting the movement of the test bar code to be read / inspected in an arbitrary order.