JP2563163Y2 - Barcode reader - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar code reader, and more particularly, to a bar code reader capable of short-time evaluation of reading performance.

[0002]

2. Description of the Related Art Conventionally, in reading performance evaluation of a bar code reading apparatus, a bar code label to be read is moved so as to pass over a reading window at a certain speed, as in the actual use of the apparatus, and reading success or failure is performed. Was calculated by checking the reading rate of what percentage.

That is, a bar code label 1 shown in FIG.
The scanning beam 11 scanned by the scanning unit 2 scans the barcode label 12 by moving the scanning window 2 at a certain speed in the direction indicated by the transport direction 13 on the reading window 10.
The light receiving unit 3 receives the reflected light from the barcode label 12 and outputs an analog signal to the A / D converter 4.

[0004] The analog signal is converted into a digital signal by the A / D converter 4, and the bar code data extractor 5 outputs the digital signal.

[0005] The bar code data extraction unit 5 analyzes the input digital signal, extracts a bar code signal therefrom and outputs it to the decoding unit 6.

The decoding section 6 decodes the bar code signal,
The decrypted data is output to the determination unit 7.

[0007] The determination unit 7 verifies the input data, determines the success or failure of the reading, and sums up the success or failure of the reading to obtain the bar code reader 1.
Was evaluated for reading performance.

[0008]

In this conventional barcode reader, the success / failure of the reading is calculated once per second, and if it is attempted to total 100 read data, it takes 100 seconds. However, there is a disadvantage that it takes a lot of time to collect data.

It is an object of the present invention to provide a bar code reader which eliminates the above-mentioned points and can significantly reduce the time required for collecting performance evaluation data.

[0010]

The bar code reader of the present invention reads the same bar code label and totals the success / failure of the decoded data decoded for a certain period of time, and visually displays the totaled result. It comprises decoding data display means .

[0011]

[0012]

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

FIG. 1 is a block diagram of one embodiment of the present invention.

A bar code reader 1 according to the embodiment shown in FIG.
a is a scanning data display unit 9 in addition to the scanning unit 2, the light receiving unit 3, the A / D conversion unit 4, the bar code signal extraction unit 5, the decoding unit 6, the determination unit 7, and the interface unit 8. FIG. 1 also shows a reading window 10 and a scanning beam 11.
And a barcode label 12 are also shown. In the configuration of FIG. 1, the determination unit 7 and the decrypted data display unit 9 form a decrypted data display unit.

Next, the operation of this embodiment will be described.

The bar code label 12 is fixed at a position where the scanning beam 11 scans without moving.

The scanning unit 2 sends out the scanning beam 1 through the reading window 10, obtains the reflected light from the bar code label 12 for each scan, and sends out the light to the light receiving unit 3.

The scanning beam 11 transmitted from the scanning unit 2 is a pulse beam having a predetermined repetition number, and therefore, the scanning data of the bar code label can be obtained by the number determined by the repetition number and the irradiation time.

The light receiving section 3 performs photoelectric conversion of the input and sends analog scanning data as an electric signal to the A / D conversion section 4, whereby the analog scanning data is converted into digital scanning data.

The barcode data extraction unit 5 receives the output of the A / D conversion unit 4 and extracts barcode data from the input data using the blank space for identification set before and after the barcode.

The decoding section 6 decodes the input bar code data and sends it to the judgment section 7. The decoded barcode data is input one after another in response to the irradiation of the scanning beam 11 by the scanning unit 2.

The judging section 7 counts decoding data sequentially input from the decoding section 6 corresponding to the scanning beam 1 for a certain period of time, in this embodiment, one second, and determines the number of successful readings and the number of readings.
Count the number of losses .

The transmission of the scanning beam 11 by the scanning unit 2 is as follows.
Usually performed by irradiating a laser polygonal mirror to a rotating polygon mirror
Therefore, the sending repetition is determined by the number of rotations and the number of mirror surfaces of the rotary polygon mirror . The number of rotations of the rotating polygon mirror is several thousand times /
Minutes (ie, 100 times or more per second) are not uncommon, so the bar code data input to the determination unit 7 is
Even a short time of one second is necessary for evaluating a barcode reader.
A sample number of 100 or more is easily secured.

The decryption data display unit 9 visually displays the determination result of the determination unit 7. Thereby, the operator is included in the number of times of reading the same barcode label in one second.
It is possible to quickly and easily grasp the percentage of the number of successful readings , that is, the reading performance evaluation of the barcode reading device.

[0025]

As described above, according to the present invention, the same bar code label can be read successfully at a predetermined evaluation time.
By visually displaying the number of times and the number of times of failure, there is an effect that the barcode reading performance can be evaluated very quickly and easily.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of a barcode reading device of the present invention.

FIG. 2 is a configuration diagram of a conventional barcode reading device.

[Explanation of symbols]

 1, 1a Barcode reading device 2 Scanning unit 3 Light receiving unit 4 A / D conversion unit 5 Digital signal analysis unit 6 Decoding unit 7 Judgment unit 8 Interface unit 9 Decoded data display unit 10 Reading window 11 Scanning beam 12 Barcode label 13 Transport direction

Claims (1)

(57) [Scope of request for utility model registration] 1. A method according to claim 1, wherein the reading of the same bar code label and the decoding of the decoded data are totaled for a certain period of time.
A bar code reader comprising a decrypted data display means for visually displaying the total result.