JP5060672B2 - Setting device, setting system, setting method and setting program for optical code reader - Google Patents

Description

  The present invention relates to a setting device, a setting system, a setting method, and a setting program for an optical code reader, and more specifically, a setting for a user to set reading conditions when an optical code is read using the optical code reader. The present invention relates to an apparatus, a setting system, a setting method, and a setting program.

  There is known an optical code reader that reads an optical code by imaging an optical code such as a one-dimensional code or a two-dimensional code and decoding the captured optical code. In the optical code reader, when the optical code is successfully read, that is, when the optical code can be decoded, the reading result such as the decoding time and the contrast of the read optical code can be displayed. (For example, Patent Document 1). According to such a configuration, the user can set an optimum reading condition by causing the optical code to be read a plurality of times and comparing the reading results at the time of each reading.

  Further, some optical code readers read an optical code a plurality of times in response to a single instruction operation by a user, and based on the reading result at each reading, reading conditions such as shutter speed are optimal values. Some have a function that can be automatically set, so-called teaching function. The reading results and the automatically set reading conditions at the time of each reading at the time of teaching are displayed, and the user can check the displayed reading results and reading conditions.

However, the reading conditions automatically set by teaching are not always optimal values. For example, for users who attach importance to shortening the time required to read an optical code, it can be said that the reading conditions when the decoding time is short among the reading results are optimum, and the reading success rate of the optical code is emphasized. For the user, it can be said that the reading conditions when the contrast of the optical code to be imaged is high among the reading results are more optimal. Therefore, in this type of optical code reader, the user can change the automatically set reading conditions after confirming the reading result at each reading at teaching. There are also things.
JP 2004-54871 A

  However, it is not easy for a general user to set optimal reading conditions based on various reading results such as the contrast and decoding time of the read optical code. Therefore, the user must check the reading result, change the reading condition, perform teaching again with the reading condition, and change the reading condition again according to the result. There is a problem that it becomes complicated.

  The present invention has been made in view of the above circumstances, and provides an optical code reader setting device, a setting system, a setting method, and a setting program capable of easily setting an optimum reading condition for each user. For the purpose.

A setting device for an optical code reader according to a first aspect of the present invention is a setting device for an optical code reader that reads and decodes an optical code by receiving reflected light from the optical code. An exposure amount output means for outputting a parameter relating to the amount to the optical code reading device, and two or more different parameters relating to the exposure amount are outputted from the exposure amount output means, and reading of the optical code is carried out twice or more with these parameters. A continuous reading instruction means for executing continuous reading, a reading result receiving means for receiving the result of the continuous reading from the optical code reader, and a result of the continuous reading received by the reading result receiving means. based on, in association with the parameter of the exposure amount output by the exposure amount output means, an optical And parameters relating to reading success rate of the optical code when be decoded over de, a decode time required to decode when unable to decode the optical code, is constituted by a graph display means for plotting on the same graph The

  According to such a configuration, it is possible to perform continuous reading by causing the optical code to be read twice or more with parameters relating to two or more different exposure amounts, and display the result of the continuous reading in a graph. On the displayed graph, at least two types of reading results when the optical code can be decoded at the time of continuous reading are displayed in association with the parameters relating to the respective exposure amounts. It is easy for the user to visually understand the relationship of the parameters related to the quantity.

  In particular, since at least two types of reading results are displayed in a graph, it is possible to set parameters relating to the optimum exposure amount after comparing the reading results. That is, the reading results that are regarded as important among the results of continuous reading differ for each user. However, according to the present invention, the user can visually check each reading result on the graph and then read the optimum reading for each user. As a condition, a parameter relating to an arbitrary exposure amount can be set. Therefore, it is possible to easily set an optimum reading condition for each user.

A setting device for an optical code reader according to a second aspect of the present invention relates to the exposure amount based on the parameter relating to the success rate of reading of the optical code obtained by the continuous reading and the decoding time in addition to the above configuration. Exposure amount calculation means for calculating a parameter, and the graph display means displays a symbol corresponding to the calculation result at a position on the graph corresponding to the parameter relating to the exposure amount calculated by the exposure amount calculation means. Configured as follows.

  According to such a configuration, based on at least two types of reading results obtained by continuous reading, a parameter related to the exposure amount considered to be optimal is automatically calculated, and the graph corresponding to the parameter related to the exposure amount A symbol can be displayed at the upper position. Therefore, since the user can set the reading conditions optimum for each user on the basis of the symbols displayed on the graph, setting of the reading conditions is further facilitated.

  According to a third aspect of the present invention, there is provided a setting device for an optical code reader, wherein, in addition to the above configuration, when the graph display means designates a position on the graph with a pointing device, the symbol is placed at the designated position. The exposure amount calculation means is configured to calculate a parameter related to the exposure amount according to the position of the symbol after movement.

  According to such a configuration, when the user operates the pointing device, the position of the symbol on the graph can be moved, and the parameter relating to the exposure amount according to the position of the symbol after the movement can be calculated. Therefore, the user can set a parameter related to the exposure amount by moving the symbol on the graph with reference to the symbol initially displayed on the graph, making it easier to set the reading conditions. Become.

  According to a fourth aspect of the present invention, there is provided a setting apparatus for an optical code reader, comprising, in addition to the above configuration, an exposure amount input receiving means for receiving numerical input of a parameter relating to an exposure amount based on a user operation. The symbol is moved to a position on the graph corresponding to the parameter relating to the exposure amount inputted numerically.

  According to such a configuration, the symbol can be moved to a position on the graph corresponding to the parameter relating to the exposure amount numerically input by the user inputting the parameter relating to the exposure amount. Therefore, since the user can confirm the relationship between the numerical value related to the exposure amount parameter and the reading result at the time of continuous reading corresponding to the exposure amount parameter, it is easier to set the reading condition. become.

In the setting device for an optical code reader according to the fifth aspect of the present invention, in addition to the above configuration, the graph display means is located at a position on the graph corresponding to the parameter relating to the exposure amount calculated by the exposure amount calculation means. If another position on the graph is specified by the pointing device while displaying a symbol indicating a parameter, a new symbol is displayed at the other position .

A setting device for an optical code reader according to a sixth aspect of the present invention is configured such that, in addition to the above configuration, the parameter relating to the success rate of reading the optical code is the contrast of the optical code .

According to such a configuration, the contrast and decoding time of the optical code that can be decoded at the time of continuous reading can be displayed on the graph as a reading result. Therefore, the user can set the parameter related to the optimum exposure amount after confirming the parameter related to the exposure amount corresponding to the contrast and decoding time of the optical code on the graph.

A setting system for an optical code reader according to a seventh aspect of the present invention is a setting system for setting an optical code reader that reads and decodes an optical code by receiving reflected light from the optical code. Then, the optical code reading device reads the optical code twice or more with parameters relating to two or more different exposure amounts, thereby transmitting the continuous reading means for executing continuous reading and the result of the continuous reading. A reading result transmitting means, wherein the setting device receives a result of the continuous reading from the optical code reading device, and a result of the continuous reading received by the reading result receiving means. an optical time in association with the parameter of the exposure amount at the time of the continuous reading, and can decode the optical code And parameters relating to reading success rate of over de configured and decoding time required for decoding when the can decode the optical code, and a graph display means for plotting on the same graph.

An optical code reader setting method according to an eighth aspect of the present invention is an optical code reader setting method in which an optical code is read and decoded by receiving reflected light from the optical code, and is exposed to the optical code. The exposure amount output step for outputting the parameter relating to the amount to the optical code reader and the parameter relating to two or more exposure amounts different in the exposure amount output step are output, and the optical code is read twice or more with these parameters. A continuous reading instruction step for executing continuous reading, a reading result receiving step for receiving the result of the continuous reading from the optical code reader, and a result of the continuous reading received by the reading result receiving step. based on the para relating to exposure amounts output in the exposure amount output step In association with the over data, and parameters relating to reading success rate of the optical code when the can decode the optical code, and a decoding time required for decoding when the can decode optical codes, graphical representation plotted on the same graph And a step.

A setting method for an optical code reader according to a ninth aspect of the present invention is a setting method for setting an optical code reader that reads and decodes an optical code by receiving reflected light from the optical code, using the setting device. The optical code reader performs a continuous reading step by reading the optical code twice or more with parameters relating to two or more different exposure amounts, and the optical code reader includes the above-described optical code reader. A reading result transmission step for transmitting a result of continuous reading, a reading result receiving step for the setting device to receive the result of the continuous reading from the optical code reading device, and a setting device received by the reading result receiving step. on the basis of the above continuous reading result corresponding to the parameter according to the exposure amount during the continuous reading Only and includes a parameter related to the reading success rate of the optical code when the can decode the optical code, and a decoding time required for decoding when the can decode the optical code, and a graph display method comprising plotted on the same graph Configured.

A setting program for an optical code reader according to a tenth aspect of the present invention is a setting program for an optical code reader for reading and decoding an optical code by receiving reflected light from the optical code, and exposing the optical code. An exposure amount output means for outputting a parameter relating to the amount to the optical code reading device, and two or more different parameters relating to the exposure amount are outputted from the exposure amount output means, and reading of the optical code is carried out twice or more with these parameters. A continuous reading instruction means for executing continuous reading, a reading result receiving means for receiving the result of the continuous reading from the optical code reader, and a result of the continuous reading received by the reading result receiving means. based on, pair parameter of the exposure amount output by the exposure amount output means Attached, the information processing and parameters relating to reading success rate of the optical code when the can decode the optical code, and a decoding time required for decoding when the can decode the optical code, as a graph display means for plotting on the same graph Configured to make the device work.

A setting program for an optical code reader according to an eleventh aspect of the present invention is a setting program for setting an optical code reader that reads and decodes an optical code by receiving reflected light from the optical code. Then, the optical code is read twice or more with parameters relating to two or more different exposure amounts, so that the above-mentioned optical is used as a continuous reading means for executing continuous reading and a reading result transmitting means for transmitting the result of the continuous reading. A code reading device is made to function and a reading result receiving means for receiving the result of the continuous reading from the optical code reading device, and based on the result of the continuous reading received by the reading result receiving means , in association with the parameters of the exposure amount, the optical code when the can decode optical codes And parameters relating to reading success rate, and a decoding time required for decoding when the can decode the optical code, configured to function the setting device as a graph display means for plotting on the same graph.

  According to the present invention, the optical code is read twice or more with parameters relating to two or more different exposure amounts, and the continuous reading is executed, and at least two types of reading results are displayed in a graph as the result of the continuous reading. Therefore, it is possible to set a parameter related to the optimum exposure amount after comparing the reading results. As a result, the user can visually confirm each reading result on the graph, and can set a parameter relating to an arbitrary exposure amount as an optimum reading condition for each user. Can be set easily.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram showing one configuration example when setting the optical code reader 2 using the setting device 1 according to the first embodiment of the present invention. A personal computer is shown as an example of the setting device 1. Has been. The optical code reader 2 irradiates the reading object 4 conveyed on the conveying line 3 with light and receives the reflected light, thereby forming the optical code 5 formed on the surface of the reading object 4. Is taken and decoded.

  The optical code reader 2 includes an operation unit 23 including a first operation key 21 and a second operation key 22 and a display unit 24 including a plurality of LEDs (Light Emitting Diodes). The user can set the operation of the optical code reader 2 by operating the operation unit 23, and can check the operation status based on the display on the display unit 24.

  The optical code reading device 2 reads the optical code 5 a plurality of times in response to a single instruction operation to the operation unit 23 by the user, and sets reading conditions such as a shutter speed based on the reading result at each reading. A teaching function that automatically sets the optimum value is provided. The shutter speed is defined by the irradiation time of irradiation light on the reading object 4. During the operation of the optical code reader 2 such as during teaching, various displays are performed using the plurality of LEDs of the display unit 24.

  When the first operation key 21 is “short-pressed” by being pressed for a short time within a predetermined time, laser light is irradiated from the optical code reader 2 toward the reading object 4. A pointer is displayed on the surface of the reading object 4. Here, two points are displayed on the surface of the reading object 4 as pointers, and the optical code reader 2 is fixed so that the optical code 5 is located between these two points. Thus, the optical code reader 2 can be installed at a position where the optical code 5 can be read satisfactorily. On the other hand, when the first operation key 21 is pressed for a long time after the predetermined time has been exceeded, teaching is started.

  After teaching, when the second operation key 22 is pressed for a short time within a predetermined time and is “short pressed”, a plurality of readings are continuously performed at the shutter speed set by teaching. Thus, a reading test is executed. In this reading test, the decoding success rate at the time of each reading is displayed as a level using a plurality of LEDs of the display unit 24, so that the user can confirm whether or not the shutter speed set by teaching is appropriate. It is like that. On the other hand, when the second operation key 22 is “long pressed” by being pressed for a long time exceeding the predetermined time, the shutter speed set by teaching is stored in the memory in the optical code reader 2. (Not shown).

  The user can not only operate the operation unit 23 of the optical code reading device 2 but also operate the setting device 1 connected to the optical code reading device 2 to give an instruction to start teaching or a reading test. it can. Further, an external connection device 6 such as a PLC (programmable logic controller) is connected to the optical code reader 2, and data obtained by decoding the optical code 5 in the optical code reader 2 is stored. The data can be output to the external connection device 6.

  FIG. 2 is a block diagram illustrating a configuration example of the optical code reader 2. The optical code reader 2 includes a control unit 25, an imaging unit 26, a device output unit 27, a setting device input / output unit 28, a read image storage unit 29, and a parameter storage unit 30 in addition to the operation unit 23 and the display unit 24 described above. It has. The control unit 25 includes an imaging control unit 251, a decoding unit 252, a teaching unit 253, a test unit 254, and a pointer control unit 255. These functional units are realized by a computer program executed by the control unit 25 including a processor. Is done.

  The imaging unit 26 includes a lens 261, a CMOS (Complementary Metal Oxide Semiconductor) sensor 262, an amplifier 263, an A / D converter 264, an LED (Light Emitting Diode) element 265, and an LD (Laser Diode) element 266. . The reading object 4 is irradiated with light from the LED element 265, and the reflected light enters the CMOS sensor 262 via the lens 261. The CMOS sensor 262 is a light receiving element that receives reflected light from the reading object 4 and performs imaging. The analog signal output from the CMOS sensor 262 is amplified by the amplifier 263 and then A / D converted. The digital signal is converted by the device 264 and input to the control unit 25 as read image data. The LD element 266 displays a pointer on the surface of the reading object 4 by irradiating the reading object 4 with laser light.

  Control for instructing imaging to the imaging unit 26 and acquiring the read image data is performed by the imaging control unit 251 of the control unit 25. The read image data from the imaging unit 26 is stored in the read image storage unit 29 and is input to the decoding unit 252 via the imaging control unit 251. Then, the decoding unit 252 performs processing for extracting the optical code 5 from the read image data, and when the optical code 5 can be extracted, the optical code 5 is decoded. However, the decoding unit 252 may directly refer to the read image storage unit 29 to perform processing on the read image data.

  The optical code reader 2 can read a plurality of types of optical codes 5 such as a one-dimensional code such as a barcode and a two-dimensional code such as a QR code. In these various optical codes 5, the optical code 5 is generally formed in a rectangular code area, and after extracting a rectangular area that seems to be a code area from the read image data, the optical code is extracted from the rectangular area. The type of the optical code 5 can be identified and the optical code 5 can be extracted by detecting the characteristic portion corresponding to the type of 5.

  The teaching unit 253 performs teaching when the first operation key 21 is “long pressed” or based on an instruction from the setting device 1. The parameter storage unit 30 can store a plurality of combinations of various parameters such as shutter speed as reading conditions during teaching. In this example, the parameter storage unit 30 can store up to eight combinations of parameters. At the time of decoding, the decoding unit 252 selects any one of the parameter combinations stored in the parameter storage unit 30 based on a user operation, so that the optical code 5 is extracted based on the parameters, and the extracted optical Code 5 is decoded. The test unit 254 executes a reading test when the second operation key 22 is “short-pressed” or based on an instruction from the setting device 1.

  When a teaching or reading test is performed, data obtained by decoding is input to the teaching unit 253 and the test unit 354, and the operation status of the optical code reader 2 and the decoding success rate are displayed on the display unit 24. Is displayed using. Further, when teaching or reading test is performed by operating the setting device 1, data obtained by decoding is output to the setting device 1 via the setting device input / output unit 28. On the other hand, when the optical code 5 is read from the reading object 4 conveyed on the conveying line 3 after the setting of the optical code reading device 2 by teaching or reading test is completed, the data obtained by decoding is transmitted to the device output unit. 27 to the external connection device 6. When the first operation key 21 is “short-pressed”, the pointer controller 255 displays a pointer on the surface of the reading object 4 by irradiating the reading object 4 with laser light from the LD element 266. Let

  FIG. 3 is a block diagram illustrating a configuration example of the setting device 1 of the optical code reading device 2. The setting device 1 includes a control unit 11, an operation unit 12, and a display unit 13. The setting device 1 includes a personal computer, and the operation unit 12 includes a pointing device 121 including a mouse, a numerical value input unit 122 including a keyboard, and the like. The display unit 13 is configured by a liquid crystal display.

  The control unit 11 includes a teaching instruction unit 111, a shutter speed output unit 112, a test instruction unit 113, an image acquisition instruction unit 114, a teaching result reception unit 115, a shutter speed calculation unit 116, a graph display control unit 117, and a shutter speed input reception unit. 118, a test result receiving unit 119 and an image acquisition unit 120. These functional units are realized by a setting program of the optical code reader 2 executed by the control unit 11 including a processor.

  The teaching instruction unit 111 is continuous reading instruction means for instructing the optical code reader 2 to perform continuous reading for teaching based on the operation of the pointing device 121 by the user. More specifically, the teaching instruction unit 111 outputs two or more different shutter speed values from the shutter speed output unit 112 to the optical code reader 2, and reads the optical code 5 a plurality of times at those shutter speeds. To perform continuous reading. Here, the shutter speed output unit 112 is an exposure amount output unit that outputs the shutter speed to the optical code reader 2 as a parameter related to the exposure amount with respect to the optical code 5. However, the configuration is not limited to the configuration in which two or more different shutter speeds are output from the setting device 1 to the optical code reader 2, and the optical code reader 2 automatically performs continuous reading at two or more different shutter speeds. Such a configuration may be adopted.

  The result of continuous reading is received by the teaching result receiving unit 115 from the optical code reader 2. The result of continuous reading includes reading results such as contrast, decoding time, and shutter speed of the optical code 5 that can be decoded at the time of continuous reading. The contrast is defined by the difference in brightness between the white portion and the black portion in the code area of the read optical code 5. The decoding time is a time from when reading of the optical code 5 by the imaging control unit 251 is started until the optical code 5 is decoded by the decoding unit 252. The graph display control unit 117 is a graph display unit that performs a graph display on the display unit 13. The graph display control unit 117 is a graph that correlates the contrast and decoding time of the optical code 5 when decoding is successful with the shutter speed at the time of reading. Display the graph by plotting it up.

  The shutter speed calculation unit 116 performs teaching by calculating a shutter speed that seems to be optimal based on the result of continuous reading received by the teaching result receiving unit 115. That is, a predetermined calculation is performed using the contrast of the optical code 5 when decoding is successful, the decoding time, and the like, thereby calculating a shutter speed at which reading can be performed in as short a time as possible with a high success rate. Here, the calculation to calculate the weighted average value is performed using the highest contrast plotted on the graph, the shortest decoding time, and the intermediate value between the shortest and longest shutter speeds that were successfully decoded. It has become. However, the calculation of the optimum value of the shutter speed is not limited to the configuration performed in the setting device 1 but may be a configuration performed in the optical code reading device 2. The graph display control unit 117 displays a predetermined symbol at a position on the graph corresponding to the shutter speed calculated as described above, so that the value calculated as the optimum shutter speed is displayed to the user. Display clearly.

  The symbol displayed on the graph can be moved on the graph by the user operating the pointing device 121. When the position on the graph is designated by the user using the pointing device 121, the graph display control unit 117 moves the symbol to the designated position, and the shutter speed calculation unit 116 responds to the position of the symbol after the movement. Calculate the shutter speed. In this way, the user can set an arbitrary shutter speed by moving the position of the symbol on the graph based on the value automatically calculated as the shutter speed that seems to be optimal.

  The shutter speed input reception unit 118 is an exposure amount input reception unit that receives a numerical input of the shutter speed as a parameter related to the exposure amount for the optical code 5 based on the operation of the numerical input unit 122 by the user. The graph display control unit 117 can display the symbol in association with an arbitrary shutter speed by moving the symbol to a position on the graph corresponding to the shutter speed input by the operation of the numerical value input unit 122. .

  The test instruction unit 113 issues a reading test start instruction based on the operation of the pointing device 121 by the user. More specifically, the test instruction unit 113 causes the shutter speed output unit 112 to output the shutter speed automatically set by the teaching performed in advance to the optical code reader 2, and continuously at the shutter speed. A reading test is executed by performing a plurality of readings. The result of the reading test is received by the test result receiving unit 119 from the optical code reading device 2, and the result is displayed on the display unit 13.

  The image acquisition instructing unit 114 instructs the optical code reading device 2 to transmit read image data of the reading object 4 imaged by the imaging unit 26. Based on the instruction from the image acquisition instruction unit 114, the read image data stored in the read image storage unit 29 of the optical code reading device 2 is transmitted to the setting device 1, and the read image data is received by the image acquisition unit 120. Is done. The display unit 13 can display an image based on the read image data received by the image acquisition unit 120.

  FIG. 4 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows a code specification confirmation screen. As shown in FIG. 4, a “Param” button 41 and a “Code” button 42 are displayed on the setting screen. By selecting any one of the buttons 41 and 42 using the pointing device 121, A setting screen corresponding to the buttons 41 and 42 can be displayed in the setting screen display area 43.

  In FIG. 4, a setting screen corresponding to the “Code” button 42 is displayed. The setting screen corresponding to the “Code” button 42 is intended for users who are relatively unskilled, and is devised so that the user can make various settings in a way that is visually easy to understand. On the other hand, the setting screen corresponding to the “Param” button 41 described later is intended for relatively skilled users, and in addition to the contents that can be set on the setting screen corresponding to the “Code” button 42. More detailed settings can be made.

  On the setting screen corresponding to the “Code” button 42, a “code specification confirmation” button 44, a “code setting” button 45, and an “imaging setting” button 46 are displayed. In FIG. 4, the code specification confirmation screen is displayed in the setting screen display area 43 by selecting the “code specification confirmation” button 44. On this code specification confirmation screen, detailed information of the optical code 5 of the type selected by the user is displayed, so that the user can confirm the specifications of the optical code 5 of each type.

  In this example, the code specification confirmation screen is calculated based on the condition input area 47 in which the user inputs conditions such as the type, data size, and print space of the optical code 5, and the conditions input in the condition input area 47. A calculation result display area 48 for displaying detailed information of the optical code 5 is also included. The user inputs a condition in the condition input area 47 and then selects a “calculation” button 49 displayed in the calculation result display area 48 to execute a calculation based on the input condition. 5 detailed information can be displayed in the calculation result display area 48. In the calculation result display area 48, the appearance image 50 of the optical code 5 of the type selected by the user is displayed, and even a relatively unskilled user can confirm the type of the optical code 5 at a glance. It is like that.

  FIG. 5 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows the code setting screen. When the “code setting” button 45 is selected on the setting screen corresponding to the “Code” button 42, a code setting screen as shown in FIG. 5 is displayed in the setting screen display area 43. On this code setting screen, a maximum of eight types of optical codes 5 out of 13 types of optical codes 5 can be set as readable optical codes 5. In this example, the code setting screen is divided into eight areas (code 1 to code 8), and the type of the optical code 5 and other detailed settings can be performed in each area.

  FIG. 6 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and the “manual” button 52 is selected on the imaging setting screen. Shows the case. When the “imaging setting” button 46 is selected on the setting screen corresponding to the “Code” button 42, an imaging setting screen as shown in FIG. 6 is displayed in the setting screen display area 43. The imaging setting screen includes a parameter display area 51 for displaying a combination of a plurality of types of parameters as reading conditions during teaching.

  In this example, in addition to the shutter speed described above, the type of the optical code 5 to be read during teaching, the retry time until the optical code 5 is retried, and the scanned image data of the optical code 5 are reversed in black and white or horizontally. It is possible to set up to eight kinds of combinations of various parameters indicating whether or not to perform as reading conditions. Below the parameter display area 51, a “manual” button 52, an “automatic” button 53, and a “test” button 54 are displayed, and any combination of parameters displayed in the parameter display area 51 is selected. When the “manual” button 52 is selected above, a manual setting area 55 for the user to manually set the selected parameter is displayed as shown in FIG.

  FIG. 7 is a diagram illustrating an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and the “automatic” button 53 is selected on the imaging setting screen. Shows the case. When an “automatic” button 53 is selected after selecting any combination of parameters displayed in the parameter display area 51 on the imaging setting screen, an automatic setting area 56 as shown in FIG. 7 is displayed. Is done.

  In the automatic setting area 56, in addition to a “teach start” button 57 for instructing the start of teaching, a “laser on” button 58 for instructing irradiation of laser light from the LD element 266 of the optical code reader 2, A shutter speed setting area 59 for setting the shutter speed, a teaching result display area 60 for displaying a teaching result, a graph display area 61 for displaying a reading result at teaching in a graph, and the like are included.

  FIG. 8 is a diagram illustrating an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, in the case where a user operation is performed from the state of FIG. 7. An imaging setting screen is shown. FIG. 9 is a flowchart illustrating an example of processing performed by the control unit 11 of the setting device 1 during teaching. Below, with reference to FIG.3 and FIGS.7-9, the process at the time of teaching and the display mode with respect to the display part 13 are demonstrated concretely.

  When a teaching start instruction is performed by selecting the “teach start” button 57, two or more different shutter speeds are transferred from the shutter speed output unit 112 to the optical code reader 2 based on an instruction from the teaching instruction unit 111. Are sequentially output (step S101). Accordingly, the optical code reading device 2 reads the optical code 5 at each shutter speed, and the reading result at each reading is received by the teaching result receiving unit 115 (Yes in step S102). However, two or more different shutter speeds are not output from the setting device 1 to the optical code reader 2, but the optical code reader 2 automatically performs continuous reading at two or more different shutter speeds, and the result is It may be input to the setting device 1.

  The graph display control unit 117 performs graph display by plotting the reading results at the time of reading received by the teaching result receiving unit 115 in the graph display area 61 (step S103). In this example, a graph is displayed in the graph display area 61 with the shutter speed as the horizontal axis and the contrast and decoding time of the optical code 5 as an example of the read result as the vertical axis. That is, reading is performed at a plurality of shutter speeds, and the contrast and decoding time of the optical code 5 that can be decoded at each reading are plotted on a graph in association with the shutter speed.

  As shown in FIG. 7, the decoding time of the optical code 5 is plotted in the decoding time display area 62 formed at the bottom of the graph in association with the shutter speed at the time of each reading. On the other hand, the contrast of the optical code 5 is plotted in a contrast display area 63 formed above the decode time display area 62 in association with the shutter speed at the time of each reading.

  In this example, only the contrast and decoding time of the optical code 5 when decoding is successful are displayed in a graph. This is because the contrast of the optical code 5 is preferably calculated using only the code area, but it is difficult to calculate when the decoding fails, and the position of the intermediate value of the successful shutter speed is calculated. Considering the points that are easy to grasp. However, the present invention is not limited to this configuration, and the contrast and decoding time of the optical code 5 when decoding fails may be displayed in a graph. Further, the reading results such as the contrast of the optical code 5 and the decoding time are not limited to the configuration in which the reading results are plotted on the same graph. For example, the reading results are plotted on separate graphs and the graphs are displayed. It may be configured to be displayed side by side on the unit 13.

  When reading of the optical code 5 is completed at all shutter speeds output from the shutter speed output unit 112 (Yes in step S104), the shutter speed calculation unit 116 calculates the above-described weighted average value based on the reading result. The shutter speed that is considered to be optimal is calculated (step S105). As shown in FIG. 7, the optimum value bar 64 is displayed as a linear symbol extending in parallel with the vertical axis at a position on the graph corresponding to the calculated shutter speed (step S106). At this time, the calculated shutter speed is displayed in the shutter speed setting area 59.

  The user can translate the optimal value bar 64 on the graph in the horizontal axis direction by operating the pointing device 121. In this example, using a pointing device 121 made of a mouse, a cursor (not shown) that moves on the display screen is placed on the optimum value bar 64, and then the optimum value bar 64 is moved by performing so-called dragging. Be able to. However, the movement of the optimum value bar 64 on the graph is not limited to the above-described dragging, but can be realized by various operations using the pointing device 121 such as clicking on the position where the cursor is to be moved. be able to.

  When the optimum value bar 64 is moved, as shown in FIG. 8, a new optimum value bar 65 appears while the original optimum value bar 64 is displayed at the same position, and movement on the graph is performed. Displayed at a later position. These optimum value bars 64 and 65 are preferably displayed in different colors so that the user can easily understand visually. When the optimum value bar 64 is moved in this way (Yes in Step S107), the shutter speed calculation unit 116 calculates the shutter speed corresponding to the position of the optimum value bar 65 after the movement (Step S108), and FIG. The calculated shutter speed value is displayed in the shutter speed setting area 59 as shown in FIG.

  The user can move the optimum value bar 64 on the graph not only by operating the pointing device 121 but also by operating the numerical value input unit 122. That is, when the user operates the numerical value input unit 122 to input a shutter speed into the shutter speed setting area 59 (Yes in step S109), the numerical value input is received by the shutter speed input reception unit 118, and the graph display control unit 117 moves the optimum value bar 64 to a position corresponding to the shutter speed (step S110). Also at this time, as shown in FIG. 8, the new optimum value bar 65 appears with the original optimum value bar 64 displayed at the same position, and is displayed at the moved position on the graph. It has become. However, the numerical value input to the shutter speed setting area 59 is not limited to the configuration performed using the numerical value input unit 122, and may be configured to be performed using the pointing device 121.

  In the present embodiment, the optical code 5 is read twice or more at two or more different shutter speeds, so that continuous reading can be executed and the result of the continuous reading can be displayed in a graph. On the displayed graph, the contrast, decoding time, etc. of the optical code 5 are displayed in association with each shutter speed as at least two types of reading results when the optical code 5 can be decoded during continuous reading. Therefore, the relationship between the decoding result that can be decoded and the shutter speed is visually easy for the user to understand.

  In particular, since at least two types of reading results are displayed in a graph, the optimum shutter speed can be set after comparing the reading results. In other words, the reading results that are regarded as important among the results of continuous reading differ for each user, but in this embodiment, the user visually confirms each reading result on a graph and then reads the optimum reading for each user. An arbitrary shutter speed can be set as a condition. Therefore, it is possible to easily set an optimum reading condition for each user.

  In addition, based on at least two types of reading results obtained by continuous reading, a shutter speed that seems to be optimal is automatically calculated, and an optimum value bar 64 is displayed at a position on the graph corresponding to the shutter speed. Can do. Therefore, the user can set the optimum shutter speed for each user on the basis of the optimum value bar 64 displayed on the graph, so that the setting of the reading condition is further facilitated.

  For example, a user who places importance on contrast rather than the decoding time of the optical code 5 can set the shutter speed corresponding to the highest contrast among the contrasts at the time of reading plotted on the graph as an optimum value. . On the other hand, the user who attaches importance to the decoding time rather than the contrast of the optical code 5 should set the shutter speed corresponding to the shortest decoding time among the decoding times plotted on the graph as the optimum value. Can do. Other than this, for example, if the user wants to keep the decoding time within a certain time, the shutter speed corresponding to the highest contrast among the contrasts plotted corresponding to the decoding time within the certain time is optimal. Can be set as a value.

  In the present embodiment, the user operates the pointing device 121 to move the position of the optimum value bar 64 on the graph and calculate the shutter speed according to the position of the optimum value bar 65 after the movement. be able to. Therefore, the user can set the shutter speed by moving the optimum value bar 64 on the graph with reference to the optimum value bar 64 initially displayed on the graph. It becomes easier.

  Further, the user can move the optimum value bar 64 to a position on the graph corresponding to the numerically input shutter speed by inputting the numerical value of the shutter speed using the numerical value input unit 122. Therefore, since the user can check the relationship between the shutter speed inputted numerically and the reading result at the time of continuous reading corresponding to the shutter speed, the setting of the reading condition is further facilitated.

  FIG. 10 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and the “test” button 54 is selected on the imaging setting screen. Shows the case. When one of the parameter combinations displayed in the parameter display area 51 is selected on the imaging setting screen and then the “TEST” button 54 is selected, these combinations are selected based on an instruction from the test instruction unit 113. Are output to the optical code reader 2. At this time, the shutter speed included in the parameter is output from the shutter speed output unit 112 to the optical code reader 2.

  Therefore, after teaching is performed as described above, a combination of the teaching parameters is selected from the parameter display area 51, and if the “test” button 54 is selected, parameters such as the shutter speed set by teaching are selected. Is output to the optical code reader 2. The reading test is executed by continuously reading a plurality of times using the parameter, and the result of the reading test is received by the test result receiving unit 119. The result of the reading test received by the test result receiving unit 119 is displayed in the test result display area 66 as shown in FIG. The test result display area 66 includes a “pointer” button for displaying a pointer by irradiating a laser beam from the LD element 266.

  In the present embodiment, a “test mode” button 67 is displayed at the top of the setting screen displayed on the display unit 13 of the setting device 1. When the user selects the “test mode” button 67 using the pointing device 121, the reading test is sequentially performed using the combination of parameters displayed in the parameter display area 51. That is, when the “test” button 54 is selected, the reading test is performed using only the combinations selected in advance by the user from among the combinations of parameters displayed in the parameter display area 51. When the “test mode” button 67 is selected, the reading test is performed using all combinations of parameters displayed in the parameter display area 51.

  FIG. 11 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows a test mode screen. When the “test mode” button 67 is selected on the setting screen, a test mode screen as shown in FIG. 11 is displayed in the setting screen display area 43. In this test mode screen, a test type setting area 71 for setting the type of reading test, a “start” button 72 for instructing execution of the test mode, and a laser beam from the LD element 266 are displayed to display a pointer. A “pointer” button 73, a test result display area 74 for displaying a result of the reading test in the test mode, and the like.

  FIG. 12 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows an operation setting screen. When the “Param” button 41 is selected using the pointing device 121, a setting screen corresponding to the “Param” button 41 as shown in FIG. 12 is displayed. This setting screen is intended for relatively skilled users, and includes an “operation setting” button 75, a “code setting” button 76, an “imaging setting” button 77, a “timing input setting” button 78, and a “communication”. A “set” button 79 and an “other settings” button 80 are displayed.

  In FIG. 12, the operation setting screen is displayed in the setting screen display area 43 by selecting the “operation setting” button 75. In this operation setting screen, a reading mode setting area 751 for selecting a reading mode and 2 for setting a reading time interval necessary for preventing the same optical code 5 from being erroneously read twice. Time reading prevention time setting area 752, data transmission timing setting area 753 for setting the data transmission timing of the reading result, pointer lighting time setting area 754 for setting the lighting time of the pointer, and data to be added to the reading result are set A data addition function setting area 755 for setting a predictive maintenance information (PMI: Preventive Maintenance Information), a read error code setting area 757 for setting a code at the time of a read error, and the like. include.

  FIG. 13 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows the code setting screen. When the “code setting” button 76 is selected on the setting screen corresponding to the “Param” button 41, a code setting screen as shown in FIG. 13 is displayed in the setting screen display area 43. Since this code setting screen is the same as the code setting screen shown in FIG. 5, a description thereof will be omitted here.

  FIG. 14 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows an imaging setting screen. When the “imaging setting” button 77 is selected on the setting screen corresponding to the “Param” button 41, an imaging setting screen as shown in FIG. 14 is displayed in the setting screen display area 43. This imaging setting screen is the same as the imaging setting screen shown in FIG. 6 except that the “manual” button 52, the “automatic” button 53, and the “test” button 54 are not displayed. The same reference numerals are assigned to and the description is omitted. On this imaging setting screen, the user can select any combination of parameters displayed in the parameter display area 51 and set the selected parameters only manually.

  FIG. 15 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows a timing input setting screen. When the “timing input setting” button 78 is selected on the setting screen corresponding to the “Param” button 41, a timing input setting screen as shown in FIG. 15 is displayed in the setting screen display area 43.

  The timing input setting screen shown in FIG. 15 includes a measurement method setting area 781 for setting a measurement method, an input polarity setting area 782 for setting an input polarity, and an input time constant setting for setting an input time constant. An area 783, an input delay time setting area 784 for setting an input delay time, a timing input ON test mode start setting area 785 for setting whether to start a test mode when the timing input is ON, and at power-on Power-on test mode start setting area 786 for setting whether to start the test mode, a timing on command setting area 787 for setting a command at timing on, and a command at timing off The timing off command setting area 788 is included.

  FIG. 16 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows a communication setting screen. When the “communication setting” button 79 is selected on the setting screen corresponding to the “Param” button 41, a communication setting screen as shown in FIG. 16 is displayed in the setting screen display area 43.

  In the communication setting screen shown in FIG. 16, a baud rate setting area 790 for setting a baud rate, a parity setting area 791 for setting a parity, a data length setting area 792 for setting a data length, and a stop bit are set. Stop bit setting area 793 for setting, multi-drop setting area 794 for making settings related to multi-drop invalidation / validation, RTS (Request To Send) protocol and CTS (Clear To Send) protocol RTS / CTS protocol setting area 795 for setting invalidity / validity, protocol setting area 796 for setting other protocols, data length invalidity / validity setting area 797 for setting invalidity / validity of data length, Header setting area 798 for setting header, checker A checksum setting area 799 for setting invalidity / validity of a program and a terminator setting area 800 for setting a terminator are included.

  FIG. 17 is a diagram showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and shows other setting screens. When the “other setting” button 80 is selected on the setting screen corresponding to the “Param” button 41, another setting screen as shown in FIG. 17 is displayed in the setting screen display area 43.

  The other setting screen shown in FIG. 17 includes a collation / preset setting area 801 for setting preset data when collating codes, a tune switch setting area 802 for setting tune switches, and a test switch. A test switch setting area 803 for performing settings, a pointer lighting setting area 804 for performing settings regarding lighting of the pointer, an NG image storage setting area 805 for performing settings regarding storage of NG image data, which will be described later, and a display unit 24 An LED display setting area 806 for performing settings related to display, an output terminal setting area 807 for performing setting of output terminals, an external illumination setting area 808 for performing settings regarding external illumination, and the like are included.

  FIGS. 18 and 19 are diagrams showing an example of a setting screen displayed on the display unit 13 of the setting device 1 based on the setting program of the optical code reading device 2, and show an image acquisition screen. An “image acquisition” button 81 is displayed at the top of the setting screen displayed on the display unit 13 of the setting device 1. When the “image acquisition” button 81 is selected, an image acquisition screen as shown in FIGS. 18 and 19 is displayed in the setting screen display area 43. In this image acquisition screen, two image display areas 811 and 812 are formed. In the display selection area 813, it is possible to select which image display area 811 or 812 displays an image.

  In this example, the optical code reading device 2 reads the optical code 5, reads the read image data, and displays it in the image display areas 811 and 812, and stores it in the read image storage unit 29 of the optical code reading device 2. Among the read image data, the NG image data that could not be decoded is read out and displayed in the image display areas 811 and 812. On the image acquisition screen, a capture setting area 814 for performing settings relating to the capture function and an NG image acquisition setting area 815 for performing settings relating to the NG image acquisition function are formed.

  The capture setting area 814 includes a parameter setting area 816, a “capture” button 817, and a “stop” button 818. When executing the capture function, a combination of parameters stored in the parameter storage unit 30 is selected in the parameter setting area 816 and then the “capture” button 817 is selected. As a result, the optical code 5 is read with the selected combination of parameters, and the read image data is read to the setting device 1 and displayed in the preselected image display areas 811 and 812. If the “Stop” button 818 is selected within a predetermined time after the “Capture” button 817 is selected, reading of the optical code 5 can be stopped.

  The NG image acquisition setting area 815 includes an NG image selection area 819, a “check” button 820, an “acquire” button 821, a “delete” button 822, and a “stop” button 823. In the read image storage unit 29 of the optical code reading device 2, one read for each type of parameter combination stored in the parameter storage unit 30, which could not be decoded when reading the optical code 5 using the parameters. Image data can be stored as NG image data. In this example, combinations of eight types of parameters are stored in the parameter storage unit 30. By storing one NG image data for each parameter combination, a total of eight NG image data can be stored. It has become.

  In the NG image selection area 819, up to eight NG image data can be displayed as thumbnails in association with combinations of parameters stored in the parameter storage unit 30. If any NG image data displayed in the NG image selection area 819 is selected and a “Check” button 820 is selected, the NG image data can be selected as an image acquisition target. In this way, after selecting the NG image data, if the “acquire” button 821 is selected, the selected NG image data is read from the read image storage unit 29 of the optical code reader 2 and selected in advance. Are displayed in the displayed image display areas 811 and 812.

  Further, if the “delete” button 822 is selected after selecting the NG image data, the selected NG image data can be deleted from the read image storage unit 29 of the optical code reader 2. On the other hand, if the “Stop” button 823 is selected within a predetermined time after the “Acquire” button 821 or the “Delete” button 822 is selected, the process of reading or deleting the NG image data can be stopped. The user can determine the reason for the failure in decoding the optical code 5 by executing the NG image acquisition function as described above and displaying the NG image data on the display unit 13 of the setting device 1. .

Embodiment 2. FIG.
In the first embodiment, the setting device 1 performs continuous reading by outputting two or more different shutter speeds from the setting device 1 to the optical code reading device 2, and the setting device 1 that has received the result of the continuous reading receives the optimum value of the shutter speed. A configuration for calculating the above has been described. On the other hand, in the second embodiment, the optical code reader 2 automatically performs continuous reading based on the teaching start instruction from the setting device 101, and the optimum shutter speed based on the result of the continuous reading. The value is calculated in the optical code reader 2.

  FIG. 20 is a block diagram showing a configuration example of the setting device 101 according to the second embodiment of the present invention. As shown in FIG. 20, the setting device 101 does not include the shutter speed output unit 112 that is provided in the setting device 1 according to the first embodiment, and the teaching instruction unit 111 starts teaching. An instruction signal and an instruction signal for starting a reading test from the test instruction unit 113 are output to the optical code reader 2. The test unit 254 of the optical code reader 2 starts a reading test based on a reading test start instruction signal from the test instruction unit 113 of the setting device 101.

  The teaching unit 253 of the optical code reader 2 starts teaching based on a teaching start instruction signal from the teaching instruction unit 111 of the setting device 101, and sequentially reads the optical code 5 at two or more different shutter speeds. The continuous reading is performed. At this time, the imaging control unit 251 and the decoding unit 252 constitute a continuous reading unit that performs continuous reading. The result of the continuous reading performed in this manner is transmitted to the setting device 101 via the setting device input / output unit 28 serving as a reading result transmitting unit. The teaching unit 253 constitutes an exposure amount calculation unit that calculates an optimum value of the shutter speed based on the result of continuous reading, and is calculated when the result of continuous reading is transmitted to the setting device 101. The optimum shutter speed is also sent.

  Therefore, as shown in FIG. 20, the teaching result receiving unit 115 receives the result of continuous reading and the optimum value of the shutter speed as the teaching result, and the graph display control unit 117 displays the graph on the display unit 13 based on these data. By performing the display, a graph as shown in FIG. 7 can be displayed. That is, the shutter speed calculation unit 116 of the setting device 101 does not perform the process of calculating the optimum value of the shutter speed based on the received continuous reading result as in the setting device 1 of the first embodiment. Only when the optimum value bar 64 is moved as shown in FIG. 6, the process for calculating the shutter speed corresponding to the position of the optimum value bar 65 after the movement is performed.

  FIG. 21 is a flowchart illustrating an example of processing performed by the control unit 11 of the setting device 101 during teaching. When a teaching start instruction is performed by selecting the “teach start” button 57 in FIG. 7, a teaching start instruction signal is transmitted from the teaching instruction unit 111 to the optical code reader 2 (step S201). Then, based on this instruction signal, two or more different shutter speeds are sequentially output in the optical code reader 2, whereby the optical code 5 is continuously read, and the shutter speed is determined based on the result of the continuous reading. An optimal value is calculated.

  When the result of continuous reading by the optical code reader 2 and the optimum value of the shutter speed are received by the teaching result receiving unit 115 as a teaching result (Yes in step S202), the graph display control unit 117 reads the reading at each reading. The result is plotted in the graph display area 61 (step S203), and the optimum value bar 64 is displayed at a position on the graph corresponding to the optimum value of the shutter speed (step S204), thereby displaying the graph. The subsequent processing (steps S205 to S208) is the same as the processing (steps S107 to S110) in the first embodiment shown in FIG.

  In the above embodiment, the case where the shutter speed defined by the irradiation time of the irradiation light on the reading object 4 is set as the reading condition of the optical code reading device 2 set by the setting device 1 has been described. However, the present invention is not limited to such a configuration. For example, other configurations are possible as long as the exposure amount for the optical code 5 can be set, such as the gain in the amplifier 263 and the light reception time of the reflected light in the CMOS sensor 262. It may be.

  In the above-described embodiment, a configuration has been described in which the contrast and decoding time of the optical code 5 when decoding is successful are displayed as graphs as parameters of the reading result at teaching. However, the present invention is not limited to this configuration. Various parameters input from the optical code reader 2 as a reading result can be displayed in a graph.

It is the schematic which showed the example of 1 structure at the time of setting an optical code reader using the setting apparatus by Embodiment 1 of this invention, and the personal computer is shown as an example of a setting apparatus. It is the block diagram which showed the example of 1 structure of the optical code reader. It is the block diagram which showed one structural example of the setting apparatus of an optical code reader. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the code specification confirmation screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the code setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the case where the "manual" button is selected on the imaging setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the case where the "automatic" button is selected on the imaging setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the imaging setting screen when a user operation is performed from the state of FIG. . It is the flowchart which showed an example of the process which the control part of a setting apparatus performs at the time of teaching. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the case where the "test" button is selected on the imaging setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the test mode screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the operation | movement setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the code setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the imaging setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the timing input setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the communication setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the other setting screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the image acquisition screen. It is the figure which showed an example of the setting screen displayed on the display part of a setting apparatus based on the setting program of an optical code reader, and has shown the other example of the image acquisition screen. It is the block diagram which showed one structural example of the setting apparatus by Embodiment 2 of this invention. It is the flowchart which showed an example of the process which the control part of a setting apparatus performs at the time of teaching.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Setting apparatus 2 Optical code reader 4 Reading object 5 Optical code 11 Control part 12 Operation part 13 Display part 25 Control part 26 Imaging part 29 Read image storage part 30 Parameter storage part 61 Graph display area 62 Decoding time display area 63 Contrast display area 64, 65 Optimal value bar 111 Teaching instruction unit 112 Shutter speed output unit 115 Teaching result receiving unit 116 Shutter speed calculation unit 117 Graph display control unit 118 Shutter speed input reception unit 121 Pointing device 122 Numerical input unit 251 Imaging control Part 252 decoding part 253 teaching part

Claims (11)

A setting device for an optical code reading device that reads and decodes an optical code by receiving reflected light from the optical code,
Exposure amount output means for outputting a parameter related to the exposure amount for the optical code to the optical code reader;
Continuous reading instructing means for executing continuous reading by outputting parameters relating to two or more different exposure amounts from the exposure amount output means, and causing the optical code to be read twice or more with these parameters;
Reading result receiving means for receiving the result of the continuous reading from the optical code reader;
Successful reading of the optical code when the optical code can be decoded in association with the parameter relating to the exposure amount output by the exposure amount output means based on the result of the continuous reading received by the reading result receiving means An apparatus for setting an optical code reader, comprising: a graph display means for plotting a parameter relating to a rate and a decoding time required for decoding an optical code on the same graph . Exposure amount calculation means for calculating a parameter relating to the exposure amount based on the parameter relating to the reading success rate of the optical code obtained by the continuous reading and the decoding time ;
The said graph display means displays the symbol corresponding to the said calculation result in the position on the graph corresponding to the parameter which concerns on the exposure amount calculated by the said exposure amount calculation means. Setting device for optical code reader. When the position on the graph is designated by the pointing device, the graph display means moves the symbol to the designated position,
3. The setting apparatus for an optical code reader according to claim 2, wherein the exposure amount calculation means calculates a parameter relating to the exposure amount according to the position of the symbol after movement. Exposure amount input receiving means for receiving numerical input of parameters relating to the exposure amount based on a user operation;
3. The setting apparatus for an optical code reader according to claim 2, wherein the graph display means moves the symbol to a position on the graph corresponding to a parameter relating to the exposure amount inputted numerically.   The graph display means displays a symbol indicating the parameter at a position on the graph corresponding to the parameter related to the exposure amount calculated by the exposure amount calculation means, and another position on the graph is designated by the pointing device. The apparatus for setting an optical code reading device according to claim 2, wherein a new symbol is displayed at the other position.   2. The setting device for an optical code reader according to claim 1, wherein the parameter relating to the success rate of reading the optical code is a contrast of the optical code. A setting system for setting an optical code reading device that reads and decodes an optical code by receiving reflected light from the optical code by a setting device,
Continuous reading means for performing continuous reading by the optical code reading device performing reading of the optical code twice or more with parameters relating to two or more different exposure amounts;
Reading result transmission means for transmitting the result of the continuous reading,
A reading result receiving means for receiving a result of the continuous reading from the optical code reader;
Based on the result of the continuous reading received by the reading result receiving means, a parameter relating to the reading success rate of the optical code when the optical code can be decoded in association with the parameter relating to the exposure amount at the time of the continuous reading ; A setting system for an optical code reader, comprising: a graph display means for plotting on the same graph the decoding time required for decoding when the optical code can be decoded . A method for setting an optical code reader that reads and decodes an optical code by receiving reflected light from the optical code,
An exposure amount output step for outputting a parameter related to the exposure amount for the optical code to the optical code reader;
A continuous reading instruction step for executing continuous reading by outputting parameters relating to two or more different exposure amounts in the exposure amount output step, and causing the optical code to be read twice or more with these parameters;
A reading result receiving step of receiving the result of the continuous reading from the optical code reader;
Successful reading of the optical code when the optical code can be decoded based on the result of the continuous reading received in the reading result receiving step in association with the parameter relating to the exposure amount output in the exposure amount output step. A method for setting an optical code reader, comprising: a graph display step for plotting a parameter relating to a rate and a decoding time required for decoding an optical code on the same graph . A setting method for setting an optical code reading device that reads and decodes an optical code by receiving reflected light from the optical code by a setting device,
A continuous reading step in which the optical code reader performs continuous reading by reading the optical code twice or more with parameters relating to two or more different exposure amounts;
A reading result transmitting step in which the optical code reader transmits a result of the continuous reading;
A reading result receiving step in which the setting device receives the result of the continuous reading from the optical code reading device;
Reading the optical code when the setting device can decode the optical code in association with the parameter related to the exposure amount at the time of continuous reading based on the result of the continuous reading received by the reading result receiving step. A setting method for an optical code reader, comprising: a graph display step for plotting a parameter relating to a success rate and a decoding time required for decoding an optical code on the same graph . A setting program for an optical code reader that reads and decodes an optical code by receiving reflected light from the optical code,
Exposure amount output means for outputting a parameter related to the exposure amount for the optical code to the optical code reader;
Continuous reading instructing means for executing continuous reading by outputting parameters relating to two or more different exposure amounts from the exposure amount output means, and causing the optical code to be read twice or more with these parameters;
Reading result receiving means for receiving the result of the continuous reading from the optical code reader;
Successful reading of the optical code when the optical code can be decoded in association with the parameter relating to the exposure amount output by the exposure amount output means based on the result of the continuous reading received by the reading result receiving means A setting program for an optical code reader, which causes an information processing device to function as a graph display means for plotting a parameter relating to a rate and a decoding time required for decoding an optical code on the same graph . A setting program for setting an optical code reading device that reads and decodes an optical code by receiving reflected light from the optical code by a setting device,
Continuous reading means for performing continuous reading by reading the optical code twice or more with parameters relating to two or more different exposure amounts;
Causing the optical code reader to function as a reading result transmitting means for transmitting the result of the continuous reading;
Reading result receiving means for receiving the result of the continuous reading from the optical code reader;
Based on the result of the continuous reading received by the reading result receiving means, a parameter relating to the reading success rate of the optical code when the optical code can be decoded in association with the parameter relating to the exposure amount at the time of the continuous reading ; A setting program for an optical code reader, wherein the setting device is made to function as a graph display means for plotting the decoding time required for decoding when the optical code is decoded on the same graph .