JPH06348886A - Optical data reader - Google Patents

Abstract

PURPOSE:To facilitate a correction operation when the read error of bar code data is present. CONSTITUTION:Bar code data and character data on a slip are optically read by a photoelectric conversion control part 1 and are stored in an image storage buffer 2. For image data inside the buffer 2, the bar code data and the character data are segmented by a pre-processing control part 4 and the bar code data and the character data are recognized by a bar code recognition part 5 and a character recognition part 6. The recognized results of both recognition parts 5 and 6 are compared with each other by a judgement collation part 7. When the compared result is noncoincident, the read character data and the recognized result of a character data recognition means are displayed at a correction control part 8 and a part where the compared result is noncoincident is corrected corresponding to external input. Thus, the need of confirming the slip every time is eliminated, the correction operation is facilitated and also utilization efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical data reader, and more particularly to an optical data reader having a function of reading bar code data on a form.

[0002]

2. Description of the Related Art Generally, in a bar code reader, when the bar code data cannot be read, an operator visually checks and inputs the character data added to the bar code data. Therefore, a keyboard or the like for the operator to input the character data is provided in the conventional barcode reading device.

[0003]

In the above-mentioned conventional apparatus, when the bar code printed or pasted on the form cannot be read, the operator adds the character data added to the bar code of the form. It was necessary to visually check and enter all data from the keyboard. Therefore,
There is a drawback that the operation efficiency decreases when there are a lot of forms. The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is an optical data reading device capable of simplifying a correction work at the time of abnormal reading of barcode data and improving operational efficiency. Is to provide.

[0004]

An optical data reading device according to the present invention is an optical reading device for reading and recognizing bar code data and character data on a form, wherein the bar code data and character data are read. A reading unit that optically reads, a barcode recognition unit that recognizes the barcode data read by the reading unit, a character data recognition unit that recognizes the character data read by the reading unit, and both of these recognition units. Comparing means for comparing the recognition results, and display means for displaying the character data read by the reading means and the recognition result of the character data recognizing means when the comparison results of the comparing means do not match,
And a data correction unit that corrects a portion in which the comparison result of the comparison unit does not match in accordance with an external input.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of an optical data reader according to the present invention. In the figure, an optical data reader according to an embodiment of the present invention is
A photoelectric conversion control unit 1 for photoelectrically converting data on a form, an image storage buffer 2 for storing the converted image data, a format information unit 3 for storing position information of a recognition target portion, and a recognition target by the format information. And a preprocessing control unit 4 for cutting out a portion from image data.

The optical data reader according to one embodiment of the present invention includes a bar code recognition section 5 for reading and recognizing bar code data, a character recognition section 6 for reading and recognizing character data, and bar code data. The determination collation unit 7 that compares and collates the recognition result of No. 1 and the recognition result of the character data is configured.

Furthermore, the optical data reading apparatus according to one embodiment of the present invention is a correction control unit 8 for displaying the recognition result of data and correcting the data, and the collation result in the judgment collation unit 7. Data output unit 9 for outputting judgment data
And a main control unit 10 that controls the data processing of each unit.

The optical data reader having such a configuration reads the bar code data 12 and the character data 13 as image data based on the line mark 14 of the form 11 as shown in FIG. Store in buffer 2 and then read the barcode data.
It recognizes. If there is an error in the reading result of the bar code data, the character data is further read and recognized, and the bar code data and the character data are compared and judged.

Returning to FIG. 1, in the optical data reading apparatus having such a configuration, the main control unit 10 synchronizes the form image data obtained by the photoelectric conversion control unit 1 with the image storage buffer 2 in synchronization with the conveyance of the form. Store to. The storage end signal for the data for one form is transmitted from the photoelectric conversion control unit 1 to the main control unit 10.
Then, the main control unit 10 reads the position information necessary for recognition from the format information unit 3 and activates the preprocessing unit 4 that cuts out the portion to be read.

The preprocessor 4 extracts the image data of the recognition target range from the image storage buffer based on the recognition control information from the main controller 10. If the object to be read is a bar code, the image data extracted first is sent to the bar code recognition section 5, and the end of the bar code reading is awaited. The barcode recognition unit 5 recognizes the barcode from the extracted image data and sends the determination result to the determination collation unit 7. The judgment collation unit 7 confirms the validity of the data in the judgment result with a check digit code.

As a result of the confirmation, if no error is detected, the judgment collation unit 7 sends the judgment data to the data output unit 9 and outputs the end signal to the main control unit 10 to end the processing. When an error is detected, the judgment collation unit 7 reads the character data added to the bar code to read the character data.
Output signal to. The preprocessing unit 4 extracts the image of the character data portion and sends it to the character recognition unit 6.

The character recognition unit 6 executes character recognition and sends the judgment result to the judgment collation unit 7. The judgment collation unit 7 confirms the validity of the data as in the case of the bar code data.
If there is no error, the judgment collation unit 7 sends the character judgment result to the data output unit 9. If an error is detected, the correction control unit 8 determines the judgment data and the image data used for recognition.
Send to.

The correction controller 8 displays the judgment result 16 and the character image data 15 of the recognition target area on the same screen as shown in FIG. Then, at this time, the portions 17 and 18 of "4" and "8" in which the comparison determination result of the barcode and the character does not match are highlighted by shading or inversion. The operator refers to the image data in this area and corrects the data that has become inconsistent due to an input from a keyboard (not shown). The modified data is
The correction control unit 8 sends the data to the judgment collation unit 7 again, the validity of the data is confirmed, and if there is no error, the data is output to the data output unit 9 and the processing ends.

As described above, since the bar code data and the character data are read as an image and the data is recognized after the reading process, it is possible to continuously read the form by automatic paper feeding, and at the time of reading abnormality. Displaying the read data as an image simplifies the work of correcting the data, thus improving operational efficiency. Further, in this embodiment, since the mismatched portion is highlighted at the time of the display, the correction work can be performed more easily.

[0016]

As described above, according to the present invention, the bar code printed or pasted on the form and the character data added to the bar code are read in the same manner, and the respective judgment results are compared and collated. By doing so, there is an effect that the reading accuracy can be guaranteed. In addition, even if an error is found by collation, the entire data can be displayed as an image so that the data can be referenced and corrected, so the correction work can be done easily without the actual form. Moreover, there is an effect that the operation efficiency is increased.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an optical data reading device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing an example of a form to be read by the optical data reading device of FIG.

FIG. 3 is a schematic diagram showing a display example in a correction control unit of the optical data reading device of FIG.

[Explanation of symbols]

 1 Photoelectric conversion control unit 2 Image storage buffer 3 Format information unit 4 Pre-processing control unit 5 Bar code recognition unit 6 Character recognition unit 7 Judgment collation unit 8 Correction control unit 9 Data output unit 10 Main control unit

Claims (4)

[Claims] 1. An optical reading device for reading and recognizing bar code data and character data on a form, the reading means optically reading the bar code data and character data, and the reading means. Bar code recognition means for recognizing the bar code data, character data recognition means for recognizing the character data read by the reading means, and comparison means for comparing the recognition results of these recognition means. And an optical data reader. 2. A display means is further added for displaying the character data read by the reading means and the recognition result of the character data recognizing means when the comparison result of the comparing means does not match. The optical data reader according to claim 1. 3. The optical data reading device according to claim 2, wherein the display means highlights a portion of the display content in which the comparison result of the comparison means does not match. 4. The optical apparatus according to claim 2, further comprising data correction means for correcting a portion where the comparison result of the comparison means does not match in accordance with an external input. Data reader.