JP2018124704A - Information transmission system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a configuration which allows a large volume of data to be transmitted to a terminal capable of optically reading an information code.SOLUTION: When divided codes C1 to Cn including each of divided pieces of data into which prescribed data is divided by a prescribed division number n are generated in a first terminal 10, the divided codes C1 to Cn are individually and sequentially displayed on a display unit 13. When the divided codes C1 to Cn sequentially displayed on the display unit 13 are sequentially imaged and decoded in a second terminal 20, the prescribed data is restored and acquired from pieces of divided data respectively obtained on the basis of a plurality of decoded results.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information transmission system for transmitting predetermined data from a first terminal to a second terminal using an information code.

  Conventionally, when transmitting predetermined data from a first terminal serving as a transmission side to a second terminal serving as a reception side, wireless communication is often used. There is also a problem due to communication failure caused by. In particular, in buildings where a large number of companies such as tenant buildings are located, wireless communication is often restricted or prohibited for measures against crosstalk of radio waves. In such a case, a method of transmitting information between terminals by wired communication using a cradle is also conceivable, but not only the development of drivers and transfer software, but also installation of various software and drivers, wiring work, etc. There is a problem that various operations are required.

  For such a problem, for example, a separate electronic device disclosed in Patent Document 1 below is known. This separation-type electronic apparatus includes a barcode display device and a handy terminal device, displays a barcode obtained by encoding date / time information on the barcode display device, and displays the displayed barcode on the handy terminal device. By reading the information optically, the date and time information is transmitted from the barcode display device to the handy terminal device.

Japanese Patent Laid-Open No. 10-143595

  However, in the configuration disclosed in Patent Document 1, data having a small amount of data such as date / time information can be transmitted to a terminal capable of optically reading an information code, for example, for reading work. There is a problem that a large amount of data such as master data cannot be transmitted.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a configuration capable of transmitting a large amount of data to a terminal capable of optically reading an information code. There is.

In order to achieve the above object, the invention described in claim 1 of the scope of claims
A first terminal (10) and a second terminal (20) are provided, and information codes (C1 to Cn) displayed on the first terminal are optically read by the second terminal from the first terminal. An information transmission system (1) for transmitting predetermined data to the second terminal,
The first terminal is
An information code generator (11) for generating an information code including the divided data for each divided data obtained by dividing the predetermined data by a predetermined number of divisions (n);
A display unit (13) for sequentially displaying the information codes generated for each of the divided data by the information code generation unit;
With
The second terminal is
An imaging unit (23) for sequentially imaging the information codes sequentially displayed on the display unit;
A decoding unit (40) for decoding the information code imaged by the imaging unit;
An acquisition unit (40) for restoring and acquiring the predetermined data from the divided data obtained based on a plurality of decoding results decoded by the decoding unit;
It is characterized by providing.
In addition, the code | symbol in each said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

  According to the first aspect of the present invention, when the information code including the divided data is generated by the information code generating unit for each divided data obtained by dividing the predetermined data by the predetermined number of divisions at the first terminal, this information The codes are sequentially displayed on the display unit. Then, when the information code sequentially displayed on the display unit at the second terminal is sequentially imaged by the imaging unit and decoded by the decoding unit, the divided data respectively obtained based on the plurality of decoded results Then, the acquisition unit restores and acquires predetermined data.

  Thereby, predetermined data can be transmitted from the first terminal to the second terminal without using wireless communication. In particular, when transmitting a predetermined amount of data having a large capacity, the predetermined number of divisions may be increased, so that a large amount of data is transmitted to a second terminal capable of optically reading an information code. be able to.

  In the invention of claim 2, the information code is generated by the information code generation unit so as to include a serial number for distinguishing from other divided data and a predetermined number of divisions in addition to the divided data. As a result, the acquisition unit easily restores the predetermined data by restoring the predetermined data from each divided data based on the serial number and the predetermined number of divisions included in the decoding result of the information code that is sequentially captured and decoded. Can be restored. In particular, by using a serial number or a predetermined number of divisions, it is possible to detect skipping or duplication of divided data during restoration processing, so it is easy to identify skipped divided data, discard duplicated divided data, etc. Can be done.

  In the invention of claim 3, the display unit sequentially displays from the information code corresponding to the first number of the serial number to the information code corresponding to the last number, and then sequentially displays from the information code corresponding to the first number again. Repeated. Thus, by sequentially decoding the information code until all the divided data is acquired at the second terminal, skipping of the divided data can be suppressed and predetermined data can be reliably restored.

  In the invention of claim 4, the determination unit determines that there is divided data that has not been decoded from the serial number and the predetermined number of divisions obtained based on the plurality of decoding results decoded by the decoding unit at the second terminal. If it determines, the information regarding the serial number corresponding to the said division | segmentation data will be alert | reported by the alerting | reporting part. Then, when notified by the notification unit, the divided data obtained based on a plurality of decoding results decoded by the decoding unit before the notification and one or more decodings decoded by the decoding unit after notification Predetermined data is restored and acquired by the acquisition unit from the divided data obtained based on the results.

  Thereby, for example, even when the divided data included in the information code is not acquired because one of the sequentially displayed information codes has failed to be decoded, the information regarding the serial number corresponding to the divided data is notified. The receiving user can easily specify the information code to be imaged again. Then, when the information code to be imaged again is imaged and divided data is obtained in response to an operation by the user who has received the notification, predetermined data is obtained from this divided data and each divided data obtained before the notification. Is restored and acquired, so that a large amount of data can be reliably transmitted to the second terminal.

  In the invention of claim 5, when the predetermined data is restored and acquired by the acquisition unit, the notification unit notifies that fact. As a result, when predetermined data is acquired when the user who has received the information regarding the serial number captures the information code to be imaged again, the fact is notified, so that some information codes can be decoded. Even if the user fails, the user who has received the subsequent notification can easily grasp that the transmission of the predetermined data to the second terminal has been completed.

  According to the sixth aspect of the present invention, when information regarding a serial number is input to the operation unit at the first terminal, an information code corresponding to the serial number is displayed on the display unit. As a result, when the information about the corresponding serial number is notified because the decoding of a part of the information code has failed, the information code corresponding to the input operation of the information regarding the serial number by the user who received the notification Is displayed, the information code to be imaged again can be easily imaged by the second terminal.

1 is a perspective view showing a schematic configuration of an information transmission system according to a first embodiment of the present invention. FIG. 2 is a block diagram illustrating an electrical configuration of a first terminal in FIG. 1. It is a block diagram which illustrates the electrical constitution of the 2nd terminal of FIG. It is explanatory drawing explaining the state by which each division | segmentation code is sequentially displayed on the display part of a 1st terminal. It is a flowchart which illustrates the flow of the reading process performed in the 2nd terminal of 1st Embodiment. It is a flowchart which illustrates the flow of the reading process performed in the 2nd terminal of 2nd Embodiment.

[First Embodiment]
Hereinafter, a first embodiment of an information transmission system according to the present invention will be described with reference to the drawings.
An information transmission system 1 shown in FIG. 1 is a system for transmitting information between terminals using an information code, and includes a first terminal 10 and a second terminal 20 as terminals for information transmission. ing. The first terminal 10 functions to generate and display information codes that are sequentially generated based on predetermined data to be transmitted to the second terminal 20, and the second terminal 20 displays information codes that are sequentially captured. It functions to acquire the predetermined data by decoding.

First, a detailed configuration of the first terminal 10 will be described with reference to FIG.
The first terminal 10 shown in FIGS. 1 and 2 is a terminal for transmitting predetermined data to the second terminal 20, and mainly includes a control unit 11, a storage unit 12, a display unit 13, and an operation unit. 14, a communication unit 15, and the like. The control unit 11 is configured mainly with a microcomputer, has a CPU, a system bus, an input / output interface, and the like, and functions as an information processing apparatus together with the storage unit 12. The storage unit 12 includes a known semiconductor memory such as a ROM, a RAM, and a nonvolatile memory. A predetermined program for generating an information code is executed by the control unit 11 in the storage unit 12. Pre-stored as possible.

  The display unit 13 is composed of a liquid crystal or the like, and has a function of performing sequential display of divided codes generated as described later and display of other information and the like as controlled by the control unit 11. The operation unit 14 includes a plurality of keys or a touch panel, and has a function of inputting information corresponding to the key operation or touch operation to the control unit 11. The communication unit 15 is configured as a known communication interface that performs wired communication or wireless communication via a predetermined network such as a LAN, and functions to communicate with an external device in cooperation with the control unit 11.

  The first terminal 10 configured as described above divides predetermined data to be transmitted to the second terminal 20 by a predetermined number of divisions, and generates an information code including the divided data for each divided data. The predetermined data is transmitted to the second terminal 20 by sequentially displaying each information code so as to change every moment. Here, the predetermined data to be transmitted is large-capacity data that cannot be recorded with one information code, and is necessary for, for example, a reading operation that associates data read from each information code with a product name, etc. Master data is assumed.

  Specifically, the control unit 11 performs a predetermined operation on the operation unit 14 in a state where the predetermined data is stored in the storage unit 12 in advance using the communication unit 15 or the like. Information code display processing for sequentially displaying information codes corresponding to the divided data is performed. In this information code display process, first, the predetermined data stored in the storage unit 12 is divided by a predetermined division number n (for example, 100), and in addition to this divided divided data, other divided data The information code is generated for each divided data as a divided code so as to include a serial number (sequence number) for specifying the order of connection at the time of restoration and a predetermined division number n. That is, the predetermined data can be restored by concatenating the divided data in the order of their serial numbers. Thereafter, as shown in FIG. 4, the divided codes C1 to Cn generated according to the divided data are sequentially displayed on the display unit 13 at predetermined display intervals individually in the order of serial numbers.

  In particular, in the information code display process according to the present embodiment, the display unit 13 sequentially displays the divided code C1 corresponding to the first serial number to the divided code Cn corresponding to the last number, and then returns to the first number again. The sequential display from the corresponding divided code C1 is repeated. In the present embodiment, the predetermined display interval is, for example, 0.3 s, and is set according to a reading process or the like by the second terminal 20. The control unit 11 that generates the divided codes C1 to Cn may correspond to an example of an “information code generation unit”.

Next, the detailed configuration of the second terminal 20 will be described with reference to FIG.
The second terminal 20 shown in FIGS. 1 and 3 optically reads the information code C attached to the reading object R, including the divided codes C1 to Cn that are sequentially displayed on the display unit 13 of the first terminal 10. It is configured as a portable code reader. The second terminal 20 has a configuration in which an outer case is formed by a case 21 and various electronic components are accommodated in the case 21.

  As shown in FIG. 3, the second terminal 20 mainly includes an illumination light source 22, a light receiving sensor 23, a filter 25, an imaging lens 27, and other optical systems, a memory 35, a control circuit 40, an operation unit 42, and a display unit. And a power supply system such as a power switch 41 and a battery 49. These are mounted on a printed wiring board (not shown) or housed in the case 21.

  The optical system includes an illumination light source 22, a light receiving sensor 23, a filter 25, an imaging lens 27, and the like. The illumination light source 22 functions as an illumination light source capable of emitting illumination light Lf, and includes, for example, a red LED and a diffusing lens, a condensing lens, and the like provided on the emission side of the LED. In the present embodiment, illumination light sources 22 are provided on both sides of the light receiving sensor 23, and configured to irradiate the illumination light Lf toward the reading object R through the reading port 21a formed in the case 21. ing.

  The light receiving sensor 23 functions as an imaging unit capable of imaging the information code C including the above-described divided codes C1 to Cn. The reflected light Lr from the information code C and the divided code C1 displayed on the display unit 13 are used. An area sensor configured to receive light from .about.Cn and in which light receiving elements, such as C-MOS and CCD, which are solid-state imaging elements are arranged two-dimensionally, corresponds to this. The light receiving sensor 23 is mounted on a printed wiring board (not shown) so that incident light incident through the imaging lens 27 can be received by the light receiving surface 23a.

  The filter 25 is, for example, an optical low-pass filter that allows passage of light that is less than or equal to the wavelength of the reflected light Lr and blocks passage of light that exceeds the wavelength. It is provided between the image lens 27. Thereby, unnecessary light exceeding the wavelength equivalent of the reflected light Lr is prevented from entering the light receiving sensor 23. In addition, the imaging lens 27 includes, for example, a lens barrel and a plurality of condensing lenses housed in the lens barrel. In the present embodiment, the imaging lens 27 is incident on a reading port 21a formed in the case 21. The light is condensed and a code image of the information code C is formed on the light receiving surface 23 a of the light receiving sensor 23.

  The microcomputer system includes an amplification circuit 31, an A / D conversion circuit 33, a memory 35, an address generation circuit 36, a synchronization signal generation circuit 38, a control circuit 40, an operation unit 42, an LED 43, a buzzer 44, a display unit 46, a communication interface 48, and the like. It is composed of This microcomputer system is configured around a control circuit 40 and a memory 35 that can function as a microcomputer (information processing apparatus), and the image signal of the information code C imaged by the optical system described above is signaled in hardware and software. It can be processed.

  An image signal (analog signal) output from the light receiving sensor 23 of the optical system is input to the amplification circuit 31 and amplified by a predetermined gain, and then input to the A / D conversion circuit 33, and the digital signal is converted from the analog signal. Is converted to The digitized image signal, that is, image data (image information) is input to the memory 35 and stored in the image data storage area of the memory 35. The synchronization signal generation circuit 38 is configured to generate a synchronization signal for the light receiving sensor 23 and the address generation circuit 36. The address generation circuit 36 is based on the synchronization signal supplied from the synchronization signal generation circuit 38. Thus, the storage address of the image data stored in the memory 35 can be generated.

  The memory 35 is composed of a semiconductor memory device or the like, and corresponds to, for example, a RAM (DRAM, SRAM, etc.) or a ROM (EPROM, EEPROM, etc.). In addition to the above-described image data storage area, the RAM of the memory 35 is configured to be able to secure a work area and a reading condition table that are used by the control circuit 40 in each processing such as arithmetic operation and logical operation. . Further, the ROM stores in advance a predetermined program that can execute a reading process and the like that will be described later, and a system program that can control each hardware such as the illumination light source 22 and the light receiving sensor 23.

  The control circuit 40 is a microcomputer capable of controlling the entire second terminal 20 and includes a CPU, a system bus, an input / output interface, and the like, and has an information processing function. Various input / output devices (peripheral devices) are connected to the control circuit 40 via a built-in input / output interface. In the case of this embodiment, the power switch 41, the operation unit 42, the LED 43, the buzzer 44, A display unit 46, a communication interface 48, and the like are connected. In addition, a host computer (not shown) corresponding to the host system of the second terminal 20 can be connected to the communication interface 48.

  The power supply system includes a power switch 41, a battery 49, and the like. When the power switch 41 managed by the control circuit 40 is turned on and off, the conduction of the drive voltage supplied from the battery 49 to each device and each circuit described above is established. Or shut off is controlled. The battery 49 is a secondary battery that can generate a predetermined DC voltage, and corresponds to, for example, a lithium ion battery.

Next, a reading process performed by the second terminal 20 when predetermined data is transmitted from the first terminal 10 to the second terminal 20 will be described in detail with reference to the flowchart shown in FIG.
When a reading operation is started by the control circuit 40 by performing a predetermined operation on the operation unit 42, an imaging process shown in step S101 in FIG. 5 is performed, and a process for imaging the information code by the light receiving sensor 23 Is made. Subsequently, a decoding process (decoding process) is performed on the captured image (S103), and if the information code is not captured or if the decrypted information code is unsuccessful, a determination process in step S105 is performed. It is determined No and the processing from step S101 is performed.

  If the information code is successfully decoded (Yes in S105), it is determined whether or not the divided code is decoded in the determination process shown in step S107. Here, when a normal information code different from each of the divided codes C1 to Cn displayed on the display unit 13 has been successfully decoded, a serial number or a predetermined division number n is not included in the decoding result. In step S107, No is determined, the decoding result is stored in the memory 35 in the storage process in step S115, and the reading process is terminated.

  On the other hand, as shown in FIG. 1, the reading process is started with the reading port 21a facing the display unit 13 of the first terminal 10, and one of the divided codes C1 to Cn has been successfully decoded. Therefore, if the decoding result includes a serial number, a predetermined number of divisions n, etc., it is determined that the division code is decoded and Yes is determined in step S107. In this case, at least a part of the decoding result, specifically, the divided data, serial number, and the like are temporarily stored in the memory 35 (S109). Then, in the determination process shown in step S111, it is determined whether or not all the divided codes have been successfully decoded, and the decoding results corresponding to all the divided codes C1 to Cn are temporarily stored in the memory 35. It is determined as No until step S101 is repeated. The control circuit 40 that executes the process of step S103 may correspond to an example of a “decoding unit”.

  If the decryption result including the serial number already stored temporarily in the memory 35 is decrypted in the temporary storage processing in step S109, the processing after step S111 is performed without storing the decryption result. Made. For example, since the imaging / decoding interval at the second terminal 20 is faster than the display interval of the divided code at the first terminal 10, the subsequent decoding result is stored in the memory 35 even when the same divided code is continuously decoded. It will never be remembered. Further, even when the same divided code is decoded after the second round with respect to the cycle in which the divided codes C1 to Cn are sequentially displayed, the subsequent decoding result is not stored in the memory 35.

  Since the divided code C1 to Cn is sequentially displayed on the display unit 13 on the first terminal 10 after the reading process is started on the second terminal 20, all the divided codes C1 to C1 are sequentially displayed in the order of the serial numbers. When the divided data is decoded and stored, it is determined Yes in the determination process shown in step S111. Further, in the state where the respective divided codes C1 to Cn are sequentially displayed on the display unit 13, since the reading process is started with the reading port 21a facing the display unit 13, the divided code Cn from the middle to the last divided code Cn. The divided data is decoded in the order of serial numbers until the divided data is decoded in the order of serial numbers from the first divided code C1 to the divided code before the divided code in the middle from the first divided code C1. Is stored, it is determined Yes in the determination process shown in step S111. Also, even if decoding of some of the divided codes fails, all the divided data is decoded by successfully decoding the divided codes after the second round in which each divided code C1 to Cn is sequentially displayed. Is stored, it is determined Yes in the determination process shown in step S111.

  As described above, when the decoding results corresponding to all the divided codes C1 to Cn are temporarily stored in the memory 35 (Yes in S111), the restoration process shown in step S113 is performed and temporarily stored in the memory 35. The predetermined data is restored and acquired by connecting the divided data based on the corresponding serial numbers. Then, in the storage process shown in step S115, the predetermined data restored in this way is stored in the memory 35, and the reading process ends. When the predetermined data is restored, the divided data temporarily stored in the memory 35 is deleted. The control circuit 40 that executes the process of step S113 can correspond to an example of an “acquisition unit”.

  As described above, in the information transmission system 1 according to the present embodiment, the divided code C1 including the divided data for each divided data obtained by dividing the predetermined data by the predetermined division number n in the first terminal 10. When .about.Cn is generated, the respective divided codes C1 to Cn are individually displayed sequentially on the display unit 13. FIG. Then, when the divided codes C1 to Cn sequentially displayed on the display unit 13 are sequentially imaged and decoded in the second terminal 20, the divided data obtained based on the plurality of decoded results, respectively. Predetermined data is restored and acquired.

  Thereby, predetermined data can be transmitted from the first terminal 10 to the second terminal 20 without using wireless communication. In particular, when transmitting predetermined data having a large capacity, the predetermined number of divisions n may be increased, so that a large amount of data can be transmitted to the second terminal 20 that can optically read the information code. Can communicate.

  In particular, the division codes C1 to Cn are generated by the first terminal 10 so as to include a serial number for distinguishing from other division data and a predetermined division number n in addition to the division data. Thereby, the second terminal 20 restores predetermined data from each divided data based on the serial number and the predetermined division number n included in the decoding result of each divided code C1 to Cn that is sequentially imaged and decoded. Predetermined data can be easily restored. In particular, by using a serial number or a predetermined number of divisions n, it is possible to detect skipping or duplication of divided data at the time of restoration processing, so it is possible to specify skipped divided data, discard duplicated divided data, etc. It can be done easily.

  Further, the display unit 13 sequentially displays the divided code C1 corresponding to the first serial number to the divided code Cn corresponding to the last number, and then the sequential display from the divided code C1 corresponding to the first number is repeated again. It is. Thereby, by sequentially decoding the divided codes C1 to Cn until all the divided data is acquired by the second terminal 20, the skipping of the divided data is suppressed and the predetermined data is reliably restored. be able to.

[Second Embodiment]
Next, an information transmission system according to a second embodiment of the present invention will be described with reference to the drawings.
The second embodiment is mainly different from the first embodiment in that the first terminal 10 can be instructed to display one of the divided codes C1 to Cn. For this reason, substantially the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  When each divided code C1 to Cn sequentially displayed on the display unit 13 at a predetermined display interval is imaged and decoded, each divided code C1 to Cn is determined depending on a work situation such as hand shake of the second terminal 20. Some of them may fail to image and decode. In order to eliminate such a failure in decoding of the divided code, each divided code C1 to Cn can be displayed in order several times. However, if the number of divisions n increases to transmit a larger amount of data, There may be a case where a considerable time is required until the divided codes C1 to Cn are decoded.

  Therefore, in the present embodiment, each divided code C1 to Cn is sequentially displayed by one turn on the first terminal 10, and a serial number corresponding to the divided code that cannot be read by the second terminal 20 is displayed on the display unit 46. . The operation unit 14 is configured to be able to input information regarding the serial number, and inputs the serial number displayed on the display unit 46 to the first terminal 10 according to the operation of the operation unit 14, and corresponds to the input serial number. All the divided codes C1 to Cn are transmitted to the second terminal 20 by displaying the divided codes to be displayed on the display unit 13 and causing the second terminal 20 to read them.

Hereinafter, the reading process of the second terminal 20 in the present embodiment will be described in detail with reference to the flowchart shown in FIG.
Since each divided code C1 to Cn is sequentially displayed on the display unit 13 at the first terminal 10 after the reading process is started at the second terminal 20, the first divided code C1 is decoded in order of serial numbers. (Yes in S107 of FIG. 6), the decoded divided data, serial number and the like are temporarily stored in the memory 35 in order (S109). Then, it is determined whether or not the first one-division code has been imaged in the determination process in step S201, and No until the one-division code up to the last division code Cn is imaged (decoded). And the process from step S101 is repeated. Since the divided code C1 to Cn is sequentially displayed on the display unit 13 and the reading process is started with the reading port 21a facing the display unit 13, the partial code Ck is decoded in the order of serial numbers. If it is determined that the divided code for one round up to the divided code Ck-1 immediately before the divided code Ck with respect to the serial number is imaged (decoded), it is determined No in step S201, The process is repeated.

  Then, based on the serial number temporarily stored in the memory 35, if it is determined that the first one-division code from the first division code C1 to the last division code Cn is captured (S201). Yes) In the determination process shown in step S111, it is determined whether or not all the divided codes have been successfully decoded. Here, if there is no skipping and all the divided data are decoded and stored in the order of the serial number from the first divided code C1, it is determined Yes in step S111. Subsequently, when the predetermined data is restored and acquired by concatenating the divided data temporarily stored in the memory 35 based on the corresponding serial numbers (S113), the notification process shown in step S213 is performed. The fact that the predetermined data has been restored and acquired is displayed on the display unit 46 functioning as a notification unit and notified. Thereafter, the restored predetermined data is stored in the memory 35 (S115), and the reading process ends. The control circuit 40 that executes the determination process in step S111 may correspond to an example of a “determination unit”.

  On the other hand, if one or more divided codes are skipped and the divided data and serial numbers corresponding to the divided codes are not stored in the memory 35, it is determined No in step S111. . In this case, a serial number display process shown in step S203 is performed, and a serial number corresponding to the skipped divided code is displayed and notified on the display unit 46 functioning as a notification unit.

  Thereafter, an imaging process (S205) and a decoding process (S207) are performed, and it is determined No in step S209 until the decoded code that has been skipped is successfully decoded. Then, until all the divided data are decoded and stored, it is determined No in step S111, the processing from step S203 is repeated, and the serial number is displayed on the display unit 46.

  Here, when the user who sees the serial number displayed on the display unit 46 operates the operation unit 14 on the first terminal 10 and inputs one serial number displayed on the display unit 46, this input is performed. The division code corresponding to the serial number is displayed on the display unit 13.

  In this way, when the division code displayed on the display unit 13 is imaged by the second terminal 20 in response to the input of the serial number and the decoding is successful (Yes in S209), the decoded divided data, serial number, and the like are stored in the memory 35. They are temporarily stored in order (S211). If there is another divided code skipped, it is determined No in step S111, and the processing from step S203 onward is performed. In this case, the display unit 46 is in a display state in which the serial number input to the first terminal 10 is removed from the state where a plurality of serial numbers are displayed (S203).

  The serial numbers displayed on the display unit 46 are sequentially input to the first terminal 10, and the divided code displayed on the display unit 13 is imaged by the second terminal 20, and all the divided data is obtained by successfully decoding the code. If decrypted and stored, it is determined Yes in step S111, and the restoration process in step S113 is performed. In this process, the predetermined data is obtained from the divided data obtained based on a plurality of decoding results decoded before notification, and the divided data obtained based on one or more decoding results decoded after notification. Data is restored and retrieved. Then, a notification process shown in step S213 is performed, and the fact that the predetermined data has been restored and acquired is displayed on the display unit 46 and notified.

  As described above, in the information transmission system 1 according to the present embodiment, the second terminal 20 has been decrypted from the serial numbers obtained based on the decrypted plural decryption results and the predetermined division number n. If it is determined that there is no divided data (No in S111), information regarding the serial number corresponding to the divided data is displayed and notified by the display unit 46 functioning as a notification unit (S203). And when such notification is made, it is obtained respectively based on the divided data obtained based on a plurality of decoding results decoded before the notification and one or more decoding results decoded after the notification. Predetermined data is restored and acquired by the acquisition unit from the divided data thus obtained (S113).

  Thereby, for example, even when the divided data included in the divided code is not acquired because one of the sequentially displayed divided codes has failed to be decoded, the information regarding the serial number corresponding to the divided data is notified. The receiving user can easily specify the division code to be imaged again. Then, in response to an operation by the user who has received the notification, when the division code to be imaged again is imaged and division data is obtained, predetermined data is obtained from this division data and each division data obtained before the notification. Is restored and acquired, so that a large amount of data can be reliably transmitted to the second terminal 20.

  Further, when the predetermined data is restored and acquired, the fact is displayed and notified by the display unit 46 functioning as a notification unit. As a result, when predetermined data is acquired because the user who has received the information on the serial number captures the division code to be imaged again, the fact is notified, so that some of the division codes can be decoded. Even if the user fails, the user who has received the subsequent notification can easily grasp that the transmission of the predetermined data to the second terminal 20 has been completed. In addition, when predetermined data is restored and acquired, the fact may be notified using the lighting and blinking of the LED 43 functioning as a notification unit or the sound of the buzzer 44. In addition, the configuration in which the notification unit notifies that when predetermined data is restored and acquired can also be applied to the first embodiment.

  In particular, when information regarding a serial number is input to the operation unit 14 at the first terminal 10, a divided code corresponding to the serial number is displayed on the display unit 13. As a result, when the information on the corresponding serial number is notified because the decoding of a part of the divided codes has failed, the corresponding divided code according to the input operation of the information on the serial number by the user who received the notification Is displayed, the second terminal 20 can easily image the division code to be imaged again.

  In the present embodiment, the divided codes C1 to Cn are not limited to being sequentially displayed on the first terminal 10 for one round, but may be sequentially displayed for a small number of times, for example, two rounds.

In addition, this invention is not limited to said each embodiment, For example, you may actualize as follows.
(1) The second terminal 20 may be configured to be placed with the reading port 21a facing the display unit 13 of the first terminal 10. As a result, in the reading process performed with the reading port 21a facing the display unit 13, the division codes C1 to Cn displayed on the display unit 13 are reliably imaged and decoded without the influence of camera shake or the like. Can be done.

(2) The second terminal 20 is not limited to being configured as a dedicated code reader that optically reads an information code, and may be configured to have other functions such as a wireless communication function. Moreover, the 2nd terminal 20 may be comprised by installing a predetermined application program with respect to portable terminals, such as a smart phone which has a camera function.

(3) The first terminal 10 may be configured as a portable terminal as long as it is configured to divide predetermined data to be transmitted to the second terminal 20 and generate divided codes and sequentially display them. It may be configured as a stationary terminal.

DESCRIPTION OF SYMBOLS 1 ... Information transmission system 10 ... 1st terminal 11 ... Control part (information code generation part)
DESCRIPTION OF SYMBOLS 13 ... Display part 14 ... Operation part 20 ... 2nd terminal 23 ... Light receiving sensor (imaging part)
40 ... Control unit (decoding unit, acquisition unit, determination unit)
46. Display part (notification part)
C1 to Cn: Divided code (information code)

Claims (6)

A first terminal and a second terminal are provided, and predetermined data is transmitted from the first terminal to the second terminal by causing the second terminal to optically read an information code displayed on the first terminal. An information transmission system for transmitting,
The first terminal is
An information code generator for generating an information code including the divided data for each divided data obtained by dividing the predetermined data by a predetermined number of divisions;
A display unit for sequentially displaying the information codes generated for each of the divided data by the information code generation unit;
With
The second terminal is
An imaging unit that sequentially images the information codes sequentially displayed on the display unit;
A decoding unit that decodes the information code imaged by the imaging unit;
An acquisition unit that restores and acquires the predetermined data from the divided data obtained based on a plurality of decoding results decoded by the decoding unit;
An information transmission system comprising:   2. The information code generation unit according to claim 1, wherein the information code generation unit generates the information code so as to include a serial number for distinguishing from other divided data and the predetermined number of divisions in addition to the divided data. Information transmission system.   The display unit sequentially displays the information code corresponding to the first number from the information code corresponding to the first number to the information code corresponding to the last number, and then repeats the sequential display from the information code corresponding to the first number again. The information transmission system according to claim 2. The second terminal is
A determination unit for determining whether or not there is the divided data that has not been decoded, from the serial number and the predetermined division number respectively obtained based on a plurality of decoding results decoded by the decoding unit;
When it is determined that there is the divided data that has not been decoded by the determination unit, a notification unit that notifies information related to the serial number corresponding to the divided data;
With
The acquisition unit, when the notification is made by the notification unit, the divided data respectively obtained based on a plurality of decoding results decoded by the decoding unit before notification by the notification unit, and by the notification unit The said predetermined data is decompress | restored and acquired from the said division | segmentation data each obtained based on the 1 or 2 or more decoding result decoded by the said decoding part after alerting | reporting, It is characterized by the above-mentioned. Information transmission system.   The information transmission system according to claim 4, wherein the notification unit notifies the fact when the predetermined data is restored and acquired by the acquisition unit. The first terminal is
An operation unit capable of inputting information related to the serial number;
The said display part displays the said information code corresponding to the said serial number, if the information regarding the said serial number is input and operated with respect to the said operation part. Information transmission system.

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