JP3554867B2 - Barcode data processing device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a barcode data processing device that processes barcode data obtained from a barcode to be measured.
[0002]
[Prior art]
The barcode is a code representing characters such as numbers by arranging bar-shaped images called barcode symbols, and has been developed for use in a distribution information system. The bar code reader scans the vicinity of the center of the bar code symbol with a laser beam and reads the code by measuring the width of the bar code symbol. This bar code reader is generally obtained by a scanning unit having a laser light source that emits laser light and a polygon mirror, a receiving unit that receives laser light reflected from a bar code to be measured and converts it into an electric signal, and a receiving unit. And a decoder for decoding the obtained electric signal.
[0003]
The bar code reader decodes all the bar code data based on the laser beam reflected from the bar code to be measured by a decoder, and outputs the decoded data to a host computer, a programmable controller, or the like. The host computer or the programmable controller receiving the barcode data performs a process for removing unnecessary data portions from all barcode data, and performs a subsequent process using the remaining necessary barcode data portions.
[0004]
[Problems to be solved by the invention]
In the conventional barcode reader, all acquired barcode data is output to a higher-order device regardless of whether it is necessary or unnecessary.Therefore, processing for removing unnecessary portions and leaving necessary portions on the higher-order device side is required, The load on the software of the host device is large. In addition, since unnecessary barcode data portions are also communicated, the burden on communication processing is large.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to eliminate waste of processing required for unnecessary portions of barcode data.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a bar code data processing device according to the first aspect of the present invention includes a significant digit receiving unit for receiving designation of a significant digit of bar code data, and a significant digit for storing the designated significant digit. Storage means, and analysis processing means for processing the input barcode data based on the significant digits stored in the significant digit storage means, and converting the input barcode data into significant digits based on designation of significant digits. It is configured such that the decoding process is performed only on the significant digit portion by dividing the portion into a portion and the other portion.
With this configuration, the designated effective digits are stored, and the bar code data of only the stored effective digits can be processed. Then, it is not necessary to process the bar code data in a portion other than the effective digits.
[0007]
According to a second aspect of the present invention, there is provided a barcode data processing device including a reference barcode data storage unit for storing reference barcode data.
The reference barcode data storage means stores barcode data as a reference to be compared with the input barcode data.
[0008]
According to a third aspect of the present invention, there is provided a barcode data processing device, comprising: means for reading the reference barcode data and the effective digits. Thus, an effective digit portion of the reference barcode data is prepared.
[0009]
The bar code data processing device according to the fourth aspect of the present invention compares and compares the portion corresponding to the significant digit range of the input bar code data with the portion corresponding to the significant digit range of the reference bar code data. A comparison processing means for outputting a result is provided.
In this way, it is possible to compare the input barcode data with the reference barcode data and output the data only for the significant digits. Therefore, the load of signal processing on the host computer and the like at the subsequent stage is greatly reduced.
[0010]
A bar code data processing device according to a fifth aspect of the present invention includes a display unit capable of displaying a comparison result by the comparison processing unit.
Thereby, the comparison result can be displayed.
[0011]
A bar code data processing device according to a sixth aspect of the present invention includes a display unit capable of displaying an operation procedure for setting the effective digit.
Thereby, the operation of setting the significant digit according to the display becomes possible.
[0012]
The bar code data processing device according to the invention of claim 7 includes a determination unit that determines whether or not the input bar code data can be read.
This makes it possible to grasp the status of whether or not the barcode data reading operation is possible.
[0013]
As described above, the bar code data processing device according to the first to seventh aspects of the present invention has a configuration that enables processing of bar code data only in the effective digit portion of bar code data. Unnecessary processing can be omitted.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1B shows a schematic configuration of a barcode data processing device according to the present invention. In FIG. 1 (b), a bar code data processing device 1 includes a significant digit receiving unit 7c for receiving designation of a significant digit of bar code data, a significant digit storage unit 31a for storing the significant digits, and a process for bar code data. And analysis processing means 30A for performing the processing. The analysis processing means 30A processes the bar code data based on the significant digits stored in the significant digit storage unit 31a.
[0015]
[Action]
In the barcode data processing device 1 according to the present invention, the significant digit receiving unit 7c receives designation of a significant digit of the barcode data and stores the designation in the significant digit storage unit 31a. When bar code data is obtained in a state where the significant digits are stored, the analysis processing means 30A reads the significant digits from the significant digit storage unit 31a and processes the bar code data based on the designation of the significant digits. As a result, it is possible to sort the barcode data into a necessary part and an unnecessary part based on the designation of the effective digits, and it is possible to eliminate waste of processing required for the unnecessary part of the barcode data.
[0016]
【Example】
1 to 12 show a first embodiment of the present invention. In FIG. 1A, a barcode data processing device 1 includes a barcode reader unit 20 (FIG. 2), and a laser beam is directed toward a barcode symbol 4 of a barcode label 3 attached to an object 2 to be measured. Light 5 is irradiated. The measurement object 2 may be mounted on a mounting table (not shown), or may be movable by a belt conveyor (not shown) or the like.
[0017]
On the front surface of the barcode data processing device 1, an LCD 6 for display and a switch group (effective digit receiving means) 7 including a teach key 7a for designating a teach mode and a code input key 7b for inputting an output code are arranged. Have been. Further, on the side surface of the barcode data processing device 1, first to third connectors 11 to 13 for external connection are provided. A programmable controller 10 (an example of a signal output target) is connected to the first connector 11 via a cable 9. In addition, a handy barcode reader 15 is connected to the third connector 13 via a cable 14. The handy bar code reader 15 can be freely changed in its orientation and position within an allowable range of the cable 14 by an operator holding the hand.
[0018]
Note that, instead of the programmable controller 10, an input terminal of a personal computer or a drive driver circuit (neither is shown) such as a lamp group for notifying an operator may be connected as necessary. As shown in FIG. 2, the barcode reader section 20 has a semiconductor laser diode 21 for irradiating the barcode 4 with the laser beam 5. The semiconductor laser diode 21 is driven by a laser lighting circuit 22, and the laser light 5 from the semiconductor laser diode 21 scans the barcode symbol 4 via a scanning unit 24 having a polygon mirror 23. The laser beam 5 reflected by the barcode symbol 4 is received by a light receiving element 25 including a photoelectric conversion element such as a photodiode. The output signal of the light receiving element 25 is input to a light receiving circuit 26 that performs analog processing such as signal shaping.
[0019]
The laser lighting circuit 22 and the scanning unit 24 are driven by the reading processing unit 27. Further, a detection signal (analog signal) from the light receiving circuit 26 is input to the reading processing unit 27. The reading processing unit 27 drives the laser lighting circuit 22 and the scanning unit 24 at a predetermined timing, and digitizes an input signal from the light receiving circuit 26. The digitized barcode signal (barcode data) is output to the analysis processing unit (CPU) 30.
[0020]
The analysis processing unit 30 is connected to an operation panel including the LCD 6 and the switch group 7, a memory 31, and first to third interfaces 32 to 34 having first to third connectors 11 to 13. The memory 31 includes a reference table area for a reference barcode or an output code serving as a reference for comparison, an effective digit storage area (effective digit storage unit), and a buffer area for temporarily storing input barcode data. In. The switch group (operation panel) 7 is capable of designating an effective digit for designating a necessary portion of the barcode data. The significant digits input from the switch group (operation panel) 7 are stored in a significant digit storage area of the memory 31. The analysis processing unit 30 processes the input barcode data based on the significant digits stored in the memory 31. The barcode data in the present specification refers to information obtained by binarizing (digitizing) the brightness of a barcode, information obtained by alphanumeric (decoding), information obtained by extracting only significant digits from the alphanumeric information, and the like. . Further, the processing of the barcode data refers to a process of converting the binary information into alphanumeric characters (decoding), extracting significant digits, reading an output code from the barcode data, and the like.
[0021]
The analysis processing unit 30 includes a decryption processing unit 30a and a comparison processing unit 30b. The decoding processing means 30a takes in the binary information from the reading processing section 27, decodes the converted information, and converts it into alphanumeric bar code data. In the measurement processing shown in FIG. 5 and the preset processing shown in FIG. The effective digit stored in the memory 31 is read out, and the decoding process is performed only on the effective digit portion. On the other hand, the comparison processing means 30b of FIG. 2 reads out the reference bar code data (alphanumeric information) stored in the memory 31 in advance and the significant digits stored in the memory 31, and reads the significant digits of the alphanumeric information. Is compared with the bar code data (alphanumeric information) of only the significant digits decoded by the decoding processing means 30a, and the comparison result is output (step S73 in FIG. 10). As a processing result, a signal such as a comparison result between the measurement barcode and the reference barcode is output to the programmable controller 10 or the like via the first interface 32. The measurement barcode information is also output to the second interface 33. Therefore, when an information device (not shown) such as a personal computer is connected to the second connector 12, the barcode information is transferred to the control device.
[0022]
Bar code data from the handy bar code reader 15 is input to the third interface 34 via the third connector 13. The handy barcode reader 15 has the same configuration as the barcode reader unit 20. By connecting a setting device 15a, another barcode reader 15b, or a personal computer 15c instead of the handy barcode reader 15, the barcode data can be output to the analysis processing unit 30 from those devices.
[0023]
Next, the operation of the above-described embodiment is divided into a measurement mode, a teach mode, and a test mode, and will be described with reference to control flowcharts of the analysis processing unit 30 (FIGS. 3 to 10).
The measurement mode analysis processing section 30 determines whether or not the timing signal TIM is ON in step S1 of FIG. In step S2, it is determined whether or not the teach mode command TCH has been issued by pressing the teach key 7a of the switch group 7 by the operator. In step S3, it is determined whether an input of an output code has been instructed by operating the code input key 7b.
[0024]
Subsequently, in step S4 of FIG. 4, by operating the switch group 7, it is determined whether or not a digit setting command for setting the effective digit portion of the read barcode has been issued. In step S5, by operating the switch group 7, it is determined whether or not execution of a movement test for performing a reading test while moving the measurement target has been instructed. In step S6, it is determined whether or not an instruction for a static test for performing a reading test while the measurement target is stationary has been issued. In step S7, other processing is executed, and when the processing ends, the flow returns to step S1 in FIG.
[0025]
When the timing signal TIM is turned on in step S1, the program proceeds to step S8. In step S8, it is determined whether or not the teach mode command TCH has been issued. In the measurement mode, since the teach mode command has not been issued, the process proceeds to step S9 to perform the measurement process shown in FIG. In the measurement processing of FIG. 5, in step S21, the barcode symbol 4 of the measurement object 2 is read. Here, the semiconductor laser diode 21 shown in FIG. 2 emits light and the polygon mirror 23 rotates, whereby the bar code symbol 4 is scanned with the laser light 5. The light receiving element 25 outputs an output signal to the light receiving circuit 26 according to the reflected light from the bar code symbol 4 that has entered the light receiving element 25. The light receiving circuit 26 forms and amplifies the input signal and outputs the amplified signal to the reading processing unit 27. The read processing unit 27 digitizes the input signal and outputs the digitized signal to the analysis processing unit 30.
[0026]
When the reading in step S21 in FIG. 5 is completed, the process proceeds to step S22. In step S22, barcode data is decoded based on the read data (barcode data). Here, the barcode data is decoded for the effective digits set in the digit setting operation (steps S4 and S18 in FIG. 4) described later. That is, in this case, since the decoding process for converting the binarized barcode data into the alphanumeric information only for the portion of the preset effective digit is performed, the decoding process is speeded up and simplified. The decryption is performed by the decryption processing means 30a in FIG.
[0027]
When the decoding process in step S22 in FIG. 5 is completed, it is determined in step S23 whether or not the barcode symbol 4 can be read. If readable, the process proceeds to step S24. In step S24, the decrypted data is temporarily output to the buffer of the memory 31. At this time, the start address is set to "1" to indicate that the reading was possible. Upon completion of the process in the step S24, the process returns to the main routine of FIGS.
[0028]
If it is determined in step S23 in FIG. 5 that the decryption has failed, the process proceeds to step S25. In step S25, it is determined whether or not the timing signal TIM is still ON. While the timing signal TIM is ON, the process returns to step S21, and the reading operation of the barcode symbol 4 is repeated. If the timing signal TIM is turned off while the barcode symbol 4 cannot be decoded, the process proceeds from step S25 to step S26. In step S26, error data indicating that decoding was impossible is output to the buffer of the memory 31. Here, since the reading operation is finished without being able to decode, “0” is written in the head address. Upon completion of the process in the step S26, the process returns to the main routine of FIGS.
[0029]
On the other hand, it is determined in step S61 in FIG. 9 whether or not data has been externally input to the third connector 13 in FIG. If there is an external input, the process proceeds from step S61 to step S62. In step S62, it is determined whether or not the teaching mode is set. Here, since it is not the teach mode, the process proceeds to step S63. In step S63, the input data is output to the buffer of the memory 31. Here, the start address indicating that the data can be read is set to “1”. That is, the output processing to the buffer in step S63 is the same as the output processing in step S24 in FIG. 5, and there is no essential difference in the storage state between the two buffers.
[0030]
Further, in FIG. 10 showing the output process, in a step S71, it is determined whether or not the barcode data is written in the buffer of the memory 31. If the barcode data has been written to the buffer, the process proceeds to step S72. In step S72, it is determined whether or not the read data is readable data. This determination is based on whether or not the head address of the buffer is “1”. If the read data is readable, the process proceeds to step S73. In step S73, the reference bar code (preset value) stored in the preset area of the memory 31 and the read data in the buffer are compared with respect to the preset effective digit portion (steps S4 and S18 in FIG. 4). I do. This comparison is performed by the comparison processing means 30b of FIG. Here, since the comparison operation is performed only for the portion of the significant digits set in advance, the amount of comparison processing is small, and the time required to complete the processing can be shortened.
[0031]
Next, in step S75 of FIG. 10, an OK output indicating that reading is possible is output via the first interface 32. An OK display is also performed on the LCD 6. In step S76, it is determined whether or not the read data matches the reference bar code for the significant digit portion. If they match, in step S77, a comparison result (specifically, a numerical value of 1 to 31) indicating which reference barcode matched, based on a later-described reference table (FIGS. 11 and 12). , Via the first interface 32. The comparison result is also displayed on the LCD 6.
[0032]
On the other hand, if it is determined in step S76 that the read data does not match any reference barcode in the reference table, the process proceeds to step S78. In step S78, the output code Co (“0” in the example of FIG. 12) when the preset address Ap in the preset table of FIG. 12 is “0” is output. If the start address of the buffer in the memory 31 is “0” in step S72 of FIG. 10, the process proceeds to step S74. In step S74, an NG output is output to the first interface 32 and the LCD 6.
[0033]
Upon completion of the process in the step S77, the step S78, or the step S74, the process shifts to a step S79. In step S79, the read barcode itself is output via the first interface 32. The output code Co is also displayed on the LCD 6 together with the output code Co.
When the teach mode teach key 7a is pressed, the teaching mode is entered. Here, if the timing signal TIM is turned on, the process proceeds from step S1 in FIG. 3 to step S10 via step S8, and performs the preset processing shown in FIG.
[0034]
6, the processes in steps S27 to S29 are the same as those in steps S21 to S23 (FIG. 5). Further, the processing in step S31 is the same as step S25 (FIG. 5). In step S30, the read data is stored in the reference table area of the memory 31. Here, as shown in FIG. 11, the storage address is the value (1 to 31) of the preset address Ap. Since the preset address Ap is “1” when the teaching mode is entered, the read data is stored at the address “1”. On the other hand, in step S32, since it is considered that a reading error has occurred, the data of the preset address Ap is cleared. Upon completion of the process in the step S30 or the step S32, the process shifts to a step S11 in FIG. In step S11, the preset address Ap is incremented. If the preset address Ap is "31", it is set to "1".
[0035]
If the depression of the teach key 7a is released, the process moves from step S2 of FIG. 3 to step S12, and the preset address Ap is reset to “1”. On the other hand, if the teach key 7a is kept pressed, 31 reference bar codes (preset values) can be stored in the memory 31. When it is determined in step S61 of FIG. 9 that a port input has been received from the outside via the third connector 13, in the teach mode, the process proceeds from step S62 to step S64. In step S64, the input data is stored at the preset address Ap in the reference table area of the memory 31. In the processing in step S64, no distinction is made between the processing in step S32 (FIG. 6) and the storage in the memory 31. That is, the reference barcode can be stored while the input data from the outside via the third connector 13 is treated the same as the measurement data by the barcode data processing device 1 itself.
[0036]
To change the output code Co output in steps S77 and S78 in FIG. 10, the switch group 7 is operated to set the output code change mode. As a result, the program shifts from step S3 of FIG. 3 to step S13. In step S13, it is determined whether a reset command has been issued. In step S15, it is determined whether the end of the output code change mode has been instructed. Further, in step S16, it is determined whether preset addresses Ap of "1" to "31" have been input.
[0037]
If the preset address Ap is input, the process moves from step S16 to step S17. In step S17, an output code Co associated with the preset address Ap is received. Here, the output code Co that can be input is in the range of “0” to “31”. When the output code Co is accepted, its contents are written in the reference table of the memory 31. FIG. 12 shows an example of the reference table in this case. In the example (A) of FIG. 12, the output code is “0” when the read data is other than the preset value, and when the preset address Ap is “1”, “2” and “3”, The preset addresses Ap are divided into six types, such as the output code is “1” and so on. On the other hand, in the example (B) of FIG. 12, the output code Co when the read data is other than the preset value is “0”, and the output code Co when the read data matches any of the preset values. Is set to “5”.
[0038]
As shown in the example (A) or (B) of FIG. 12, the output code Co is output in step S77 or step S78 of FIG. 10 based on the set reference table. Co can be freely changed, and the output code Co has a high degree of freedom. Therefore, it is possible to freely perform sorting control in units of groups and to output match / mismatch with respect to preset values of read data, and to control external devices (such as the programmable controller 10) connected to the first interface 32 in FIG. The program can be simplified. Further, by directly connecting a lamp or the like without connecting the programmable controller 10, it is also possible to control the lighting of the lamp.
[0039]
On the other hand, if a reset command is issued in step S13 in FIG. 3, the process proceeds to step S14. In step S14, the setting of the reference table shown in FIG. 12 is returned to the default value. Here, the output code Co is the same as the preset address Ap (that is, “0” to “31”). If an end command is issued in step S15, the process returns to the main routine.
[0040]
If the set digit setting command used in step S22 (FIG. 5), step S28 (FIG. 6) and step S73 (FIG. 10) is executed by operating the switch group 7, the program starts from step S4 in FIG. Move to step S18. In step S18, a message "Please set a digit. From what digit?" Is displayed on the LCD 6, and an input of a desired number of digits is accepted while prompting the operator to input a digit. After the operator inputs the number of digits, the LCD 6 displays "Please enter the number of digits. How many digits?" And waits for the input of the desired number of digits. When the input of the digit range to be compared is received from the operator, the set digit is stored in the memory 31, and then the process returns to the main routine.
[0041]
Since the significant digits set here are used in step S22 and the like in FIG. 5, it is possible to eliminate waste of processing required for unnecessary portions of barcode data. For example, in the JAN code, a bar code is composed of a country code, a maker code, a product code, and a check digit. Often, only the product code is to be processed. In this case, by setting the digit range (effective digit range) of the bar code corresponding to the product code in step S18 in FIG. 4, efficient decoding of bar code data using only the bar code related to the product code is performed. Processing can be performed.
Test Mode In step S5 in FIG. 4, when the movement test mode is commanded by operating the switch group 7, the process proceeds to step S19, and the movement test processing in FIG. 7 is executed.
[0042]
In a step S41, a variable i is set to “0”. In step S42, the timer T is reset. In step S43, the target reading operation is performed as in step S21 (FIG. 5). In step S44, the decoding process is performed in the same manner as in step S22. Here, it is determined whether or not all the symbols (including portions other than the effective digits) of the read barcode can be decoded.
[0043]
In step S45, it is determined based on the decryption processing in step S44 whether or not all the barcode symbols can be decrypted. If the decryption is possible, the process proceeds to step S49, and the variable i is incremented. In step S49A, the timer T is reset. If it is determined in step S45 that the barcode could not be read, or if the process in step S49A has been completed, the process proceeds to step S46. In step S46, it is determined whether or not the timer T has reached 0.3 seconds or more. Here, 0.3 seconds is appropriate for judging a separation between a barcode in one measurement target and a barcode in the next measurement target, assuming that 300 reading operations can be performed per second. Time. While the timer T has not reached 0.3 seconds, it can be determined that barcode data has been read from one barcode, so the process returns from step S46 to step S43, and the barcode reading and decoding operations from step S43 onward are performed. repeat.
[0044]
If it is determined in step S46 that the timer T has exceeded 0.3 seconds and one barcode has been read, the process proceeds to step S47. In step S47, a variable i indicating the number of times of reading for one barcode and the read barcode are displayed on the LCD 6 and output to the second interface 33. In step S48, it is determined whether or not the end of the movement test has been instructed by the operator. Until a termination command is issued, the process returns to step S41, and the measurement operation from step S41 is repeated. If the end is instructed, the process returns from the step S48 to the main routine of FIGS.
[0045]
In the above-described movement test, the number of readings in the moving state can be counted by reading the barcode symbol 4 while moving the measurement object 2. Therefore, a reading test closer to the actual measurement operation can be performed, and the accuracy of the reading test is improved. The count value (variable i) and the barcode output via the first interface 32 are subjected to statistical processing by an external device, for example, calculation of an average value of the number of readings and creation of a histogram.
[0046]
As a result, it is possible to recognize the stability of reading while the measuring object 2 is moved, and it is necessary to correct the printing and sticking position of the barcode label 3 and review the transport play and the transport speed. Sex determination is possible. In addition, since the count value (variable i) and the barcode are not only displayed on the LCD 6 but output to the outside via the second interface 33, by connecting an appropriate external device, a high-speed repetitive reading test can be performed. Will be able to respond to
[0047]
In step S6 of FIG. 4, when the still test mode is designated by operating the switch group 7, the process proceeds to step S20, and the still test process of FIG. 8 is executed. In step S50 in FIG. 8, the variables i and j are set to “0”. The processing in steps S51 to S53 is the same as the processing in steps S43 to S45 in FIG.
[0048]
In step S54 of FIG. 8, the variable i is incremented so as to count the number of times the barcode can be read, and the process proceeds to step S55. On the other hand, if the determination in step S53 is No, the process proceeds to step S55 without performing the process in step S54. In step S55, the variable j is incremented to count the total number of readings. Then, it is determined whether or not the variable j has become “100” in step S56. Until the variable j becomes “100”, the process returns to step S51, and the reading process from step S51 is repeated. If the variable j becomes “100” in step S56, the process proceeds to step S57.
[0049]
In step S57, a variable i indicating the number of readings and the read barcode are displayed on the LCD 6 and output to the second interface 33. The processing here is substantially the same as step S47 (FIG. 7). Upon completion of the process in the step S57, the process returns to the main routine shown in FIGS. Here, the test conditions (moving test and stationary test) can be switched so as to be closer to the actual measurement conditions of the measurement target 2. Therefore, in this embodiment, a reading test closer to the actual measurement operation can be performed, and the accuracy of the reading test is improved.
[0050]
In the first embodiment, the barcode data processing device 1 of FIG. 2 includes the barcode reader unit 20 integrally. However, in the present invention, the barcode data processing device 1 includes the barcode reader unit 20. You don't need to be. This example will be described with reference to the second embodiment shown in FIGS.
[0051]
In FIG. 13, in the present embodiment, the display unit 6 includes a first display unit 6a for displaying a preset value and a second display unit 6b for displaying an output code or a bar code. The third connector 13 includes a handy barcode reader 15, a setting device 15a, a stationary barcode reader 15b, an upper personal computer 15c, a display 15d, a serial printer 15e, a PLC 10, or another barcode data processing device 1A. Connected.
[0052]
In FIG. 14, a stationary bar code reader 15b or a handy bar code reader 15 is connected to a second interface 33 having a second connector 12. Each of the bar code readers 15 and 15b has a function corresponding to the bar code reader unit 20 in FIG. 2 and a decoder corresponding to the decryption processing means 30a (FIG. 2). The barcode data is output to the analysis processing unit 30 via the second interface 33. The analysis processing unit 30 has the same configuration as that of the first embodiment described above, and includes a control processing unit 30c, an I / F first processing unit 30d, and an I / F second processing unit 30e in addition to the comparison processing unit 30b. But does not include the decryption processing means 30a (FIG. 2).
[0053]
The control processing unit 30c controls display processing of the display unit 6. The I / F first processing unit 30d takes in bar code data input from the second interface 33 composed of the RS232C, and outputs this data to the decryption processing unit 30a. The second I / F processing unit 30e takes in the bar code data input from the third interface 34 composed of the RS232C and outputs this data to the decryption processing unit 30a, or is connected to the upper personal computer 15c. If it is, the barcode data is output to the personal computer 15c via the third interface 34. Further, the I / F second processing unit 30 e exchanges signals with the programmable controller 10 via an ON / OFF switching operation (contact control) via the first interface 32.
In the barcode data processing apparatus according to the present embodiment, the designation of the significant digits of the barcode data is accepted, and the barcode data is processed based on the accepted significant digits. It can be omitted.
[0054]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the barcode data processing apparatus which concerns on this invention, the designated effective digit about the barcode data is memorize | stored, and it becomes possible to process the barcode data of only the memorized effective digit part. It is possible to eliminate the need for processing of the bar code data of the portion, and it is possible to eliminate waste of the processing required for the unnecessary portion of the bar code data.
[Brief description of the drawings]
FIG. 1A is a schematic perspective view showing a use state of a barcode data processing system according to a first embodiment of the present invention, and FIG. 1B is a schematic block diagram of a barcode data processing device of the present invention.
FIG. 2 is a schematic block diagram showing an internal configuration of the barcode data processing device.
FIG. 3 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 4 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 5 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 6 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 7 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 8 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 9 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 10 is a flowchart illustrating a control function of an analysis processing unit.
FIG. 11 is a schematic diagram of a reference table showing the correspondence between preset addresses and reference barcodes.
FIG. 12 is a conceptual diagram of a reference table showing the correspondence between preset addresses and output codes.
FIG. 13 is a schematic perspective view of a barcode data processing apparatus according to a second embodiment.
FIG. 14 is a schematic block diagram of a barcode data processing apparatus according to a second embodiment.
[Explanation of symbols]
1: Bar code data processing device
7: Switch group
7c: valid digit receiving means
30 (30A): analysis processing unit (analysis processing means)
30a: decryption processing means (analysis processing means)
30b: comparison processing means (analysis processing means)
31 (31a): Memory (effective digit storage unit)

Claims (7)

Significant digit receiving means for receiving designation of significant digits of bar code data, significant digit storage means for storing the designated significant digits, and input bar code data to the significant digits stored in the significant digit storage means. Analysis means for processing the input barcode data based on the designation of the significant digits, and dividing the input barcode data into significant digits and other portions based on the designation of the significant digits, and performing decoding processing only on the significant digits. A bar code data processing device characterized by the above-mentioned . 2. The barcode data processing device according to claim 1, further comprising a reference barcode data storage unit for storing reference barcode data . 3. The barcode data processing device according to claim 2, further comprising: a unit that reads the reference barcode data and the effective digits . 4. The bar code data processing device according to claim 3, wherein a portion corresponding to the effective digit range of the input bar code data is compared with a portion corresponding to the effective digit range of the reference bar code data, and a result of the comparison is compared. A bar code data processing device comprising a comparison processing means for outputting . 5. The barcode data processing device according to claim 4, further comprising display means for displaying a comparison result by said comparison processing means . 6. The barcode data processing device according to claim 1, further comprising a display unit capable of displaying an operation procedure for setting the effective digit . 7. The barcode data processing apparatus according to claim 1, further comprising a determination unit configured to determine whether the input barcode data is readable .

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