WO2012096301A1 - Color code output device, color code communication device, and color code communication system - Google Patents

Color code output device, color code communication device, and color code communication system Download PDF

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Publication number
WO2012096301A1
WO2012096301A1 PCT/JP2012/050368 JP2012050368W WO2012096301A1 WO 2012096301 A1 WO2012096301 A1 WO 2012096301A1 JP 2012050368 W JP2012050368 W JP 2012050368W WO 2012096301 A1 WO2012096301 A1 WO 2012096301A1
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WIPO (PCT)
Prior art keywords
color code
color
code
unit
output
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PCT/JP2012/050368
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French (fr)
Japanese (ja)
Inventor
勉 足立
林　茂
大介 毛利
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エイディシーテクノロジー株式会社
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Publication of WO2012096301A1 publication Critical patent/WO2012096301A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/1141—One-way transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication

Definitions

  • the present invention relates to, for example, a color code output device, a color code communication device, and a color code communication system that perform communication using a color code.
  • a visible light communication device that performs communication using visible light is known (see Patent Document 1).
  • data is transmitted by blinking visible light emitted from a single light source at high speed.
  • a conventional visible light communication device transmits data by blinking a single light source, there are only two types of light patterns at a certain point in time: a light source ON pattern and an OFF pattern. Absent. Therefore, the amount of information that can be included in one light pattern is small, and as a result, the communication speed cannot be sufficiently increased.
  • the color code output device of the present invention includes a color code output unit in which a plurality of light irradiation units capable of changing the color of light is arranged, and a control unit that controls the color of light emitted by the light irradiation unit. It is characterized by providing.
  • the color code output device of the present invention can output a color code by a color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged. Then, the color code can be freely changed by changing the color of light emitted by each light irradiation unit by the control unit.
  • the color code output device of the present invention can perform high-speed communication, for example, by outputting the color code and freely changing the color code.
  • the color code output from the color code output unit since the color code output from the color code output unit has high directivity, it reaches a long distance. Therefore, communication can be performed even over a long distance. In addition, since the color code with high directivity does not spread around, the communication content is not easily intercepted. Further, since the light of the color code can be seen with the naked eye, the user can easily know whether or not communication is being performed at that time.
  • the control unit periodically varies the intensity of light emitted from the light irradiation unit.
  • the color code can be read when the light intensity in the color code is high, intermediate, and low. it can.
  • the color code can be reliably read without being unreadable because the light intensity of the color code is too large or too small.
  • the color code communication device of the present invention includes a color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged, a control unit that controls the color of light emitted by the light irradiation unit, and a color And a color code reading unit for reading the code.
  • the color code communication device of the present invention can output a color code by a color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged. Then, the color code can be freely changed by changing the color of light emitted by each light irradiation unit by the control unit.
  • the color code communication device of the present invention can read the color code output from another color code communication device by the reading unit.
  • the color code communication apparatus of the present invention can perform high-speed communication, for example, by outputting and reading the color code.
  • the color code output from the color code output unit since the color code output from the color code output unit has high directivity, it reaches a long distance. Therefore, communication can be performed even over a long distance. In addition, since the color code with high directivity does not spread around, the communication content is not easily intercepted. Further, since the light of the color code can be seen with the naked eye, the user can easily know whether or not communication is being performed at that time.
  • the control unit periodically varies the intensity of light emitted from the light irradiation unit.
  • the color code can be read when the light intensity in the color code is high, intermediate, and low. it can.
  • the color code can be reliably read without being unreadable because the light intensity of the color code is too large or too small.
  • the color code communication system of the present invention includes the above-described color code output device and a color code reading device that reads the color code output from the color code output device.
  • color code communication can be performed by outputting a color code with a color code output device and reading the color code with a color code reader. Since the color code can include a large amount of information, the color code communication system of the present invention can perform high-speed communication.
  • the bidirectional color code communication system of the present invention includes a plurality of the above-described color code communication devices.
  • color code communication can be performed by outputting a color code by any one of the color code communication devices A and reading the color code by another color code communication device B.
  • color code communication can also be performed by outputting a color code by the color code communication device B and reading the color code by the color code communication device A.
  • the bidirectional color code communication system of the present invention can perform high-speed communication.
  • the bidirectional color code communication system of the present invention is preferably as follows. That is, the color code communication device, when the color code output from another color code communication device is read by the color code reading unit, a reception signal output unit that outputs a reception signal to the other color code communication device; A plurality of color code output units that output a plurality of color codes having different color ranges to be used by the color code output unit, and a reception state of the reception signal corresponding to each of the plurality of color codes, It is preferable to include a color range setting unit that sets a color range of the color code output by the color code output unit.
  • the following effects can be obtained.
  • some colors used for the color code are read by the other color code communication device. It may be difficult.
  • a reception signal is returned from the color code communication device on the other side (that is, Select the color code that can be read normally by the other party's color code communication device), and the color code color range that is read normally by the color code output unit (communication)
  • the color range of the color code used in is limited to a color that can be read by the color code communication device on the other side, so that color code communication can be performed reliably.
  • the color code locking / unlocking system of the present invention is the color code output device described above, which can output a predetermined set color code, and reads the color code output by the color code output device.
  • a color code reading unit, and a locking / unlocking device having a locking / unlocking unit for locking and / or unlocking when the color code read by the color code reading unit is the set color code. Consists of.
  • the color code locking / unlocking system of the present invention performs locking / unlocking by transmitting / receiving a set color code which is a color code. Since the color code can contain a large amount of information, the use of this makes it difficult to illegally unlock and increases safety.
  • the set color code which is a color code
  • has high directivity is sent only in the necessary direction, and does not spread around, so it is difficult to intercept. As a result, safety is increased. Further, since the light of the set color code which is the color code can be seen with the naked eye, the user can easily know whether or not the locking / unlocking process is being performed at that time.
  • the color code locking / unlocking system of the present invention is preferably as follows. That is, the color code output device includes an update unit that updates the set color code and an updated color code output unit that outputs the updated set color code, and the locking / unlocking device includes the update It is preferable that the updated set color code output by the subsequent color code output unit is read and the updated set color code is used as the set color code used in the locking / unlocking unit.
  • a color code (registered trademark owned by Color Zip Media, disclosed in Japanese Patent Application Laid-Open No. 2001-319200) is a two-dimensional code system that codes a color pattern, also called a color barcode.
  • a color barcode is a two-dimensional code system that codes a color pattern, also called a color barcode.
  • the colors of cells (pixels) constituting the color code are chromatic colors. All the cells may be chromatic, or only some of the cells may be chromatic.
  • a non-chromatic cell may be irradiated with achromatic light (white, gray, black, etc.) or may be turned off.
  • the color of the cells constituting the color code (the color of the light irradiated by the light irradiation unit) can be any color, for example, red, green, blue, and one or more of them are mixed in any ratio Can be any of the colors.
  • the light irradiation unit As the light irradiation unit, a well-known mechanism for irradiating light can be widely used, and an LED is particularly preferable.
  • the light irradiated by the light irradiation unit to output the color code is preferably visible light.
  • the visible light wavelength range can be, for example, a range defined by JIS Z8120.
  • the arrangement of the plurality of light irradiation units may be an arrangement in which the positional relationship is fixed.
  • the arrangement pattern is not particularly limited, and can be arranged in various patterns. For example, it may be a matrix-like array (m and n are arbitrary integers) of m rows and n columns, an array of columns or columns, and an array along a curved surface (for example, a circle or an ellipse).
  • FIG. 1 is a block diagram showing a configuration of a mobile phone 3 that constitutes a bidirectional color code communication system 1.
  • FIG. 3 is a block diagram illustrating a configuration of a color code output unit 5.
  • FIG. 2 is a perspective view illustrating a configuration of a mobile phone 3.
  • FIG. It is a flowchart showing the process in which 3 A of transmission side mobile telephones output a color code. It is explanatory drawing showing the kind of color code which the color code output part 5 outputs. It is a graph showing the intensity fluctuation
  • FIG. 2 is an explanatory diagram illustrating a configuration of a color code locking / unlocking system 101.
  • FIG. It is a flowchart showing the process which the locking / unlocking apparatus 103 performs, when a locking / unlocking code or a change code is received.
  • 4 is a flowchart showing a process for updating a lock / unlock code in the mobile phone 3; It is explanatory drawing showing the structure of the bidirectional
  • FIG. 1 is a block diagram showing a configuration of a mobile phone (color code output device, color code communication device) 3 constituting a bidirectional color code communication system 1
  • FIG. 2 shows a configuration of a color code output unit 5 described later.
  • FIG. 3 is a perspective view showing the configuration of the mobile phone 3.
  • the bidirectional color code communication system 1 is composed of a plurality of mobile phones 3. As shown in FIGS. 1 and 3, the mobile phone 3 includes nine light irradiation units 5-1 to 5-9. The light irradiation units 5-1 to 5-9 are collectively referred to as a color code output unit. 5
  • the mobile phone 3 includes a control unit 7, a camera (reading unit) 9, an operation unit 11, and a display 13.
  • the light irradiation unit 5-1 includes a red LED element 15, a green LED element 17, and a blue LED element 19, as shown in FIG.
  • the control unit 7 can individually control ON / OFF and lighting intensity of each LED element. Therefore, the light irradiation unit 5-1 can irradiate an arbitrary color with an arbitrary intensity by adjusting ON / OFF and lighting intensity of each LED element.
  • Each LED element is configured to emit light having high directivity in a direction orthogonal to the housing surface of the mobile phone 3 (direction D indicated by an arrow in FIG. 3). Therefore, the light irradiation unit 5-1 can irradiate light with high directivity in the direction D.
  • the light irradiation units 5-2 to 5-9 are configured in the same manner as the light irradiation unit 5-1.
  • the light irradiation units 5-1 to 5-9 are arranged in a 3 ⁇ 3 matrix as shown in FIG.
  • a color code having each of the light irradiation units 5-1 to 5-9 as one cell in the direction D Can be output.
  • the control unit 7 is a known computer including a CPU, a ROM, a RAM, and the like, and controls each unit of the mobile phone 3.
  • the control includes processing for individually setting the color and intensity of light emitted by each of the light irradiation units 5-1 to 5-9 and determining the content of the color code output by the color code output unit 5.
  • the control part 7 performs the process mentioned later.
  • the camera 9 is a camera having a known structure and function, and its lens is attached to the surface of the casing of the mobile phone 3 where the color code output unit 5 is provided.
  • the camera 9 can capture the color code output by the color code output unit 5 of another mobile phone 3 and acquire the image.
  • the operation unit 11 is an operation button provided in a known mobile phone, and can input a user instruction to the mobile phone 3.
  • the instructions include an instruction to start color code communication, which will be described later, an instruction to set the content of the color code output in the color code communication, and the like.
  • the display 13 is a liquid crystal display included in a known mobile phone.
  • the mobile phone 3 includes the same constituent members as those of a normal mobile phone in addition to the above-described constituent members, but the description thereof is omitted here.
  • (2) Color code output by the color code output unit 5 The color code output by the color code output unit 5 is shown in FIG. There are five types of color codes: call code, response code, reception code, communication completion code, and information code. In each case, as shown in FIG. 5, each cell (light irradiation units 5-1 to 5-9) The color of the light irradiated by is predetermined. In FIG. 5, R means red, G means green, and B means blue.
  • the calling code is a mobile phone 3 that outputs an information code (hereinafter referred to as a transmitting-side mobile phone 3A) among a plurality of mobile phones 3 constituting the bidirectional color code communication system 1, and receives the information code.
  • This is a color code for calling (hereinafter referred to as a receiving-side mobile phone 3B). Since the mobile phone 3 can both output and receive color codes, the transmitting-side mobile phone 3A can also receive information codes, and the receiving-side mobile phone 3B can also transmit information codes. It can be carried out.
  • the response code is a color code returned to the transmitting side mobile phone 3A by the receiving side mobile phone 3B that has received the calling code.
  • the reception code is a color code returned to the transmission side mobile phone 3A by the reception side mobile phone 3B that has received the information code.
  • the communication completion code is a color code output from the transmitting mobile phone 3A to the receiving mobile phone 3B when all information codes are output.
  • the information code is a color code output by the transmitting mobile phone 3A after the response code is returned from the receiving mobile phone 3B to the transmitting mobile phone 3A, and represents information to be transmitted by communication.
  • There are many types of information codes such as I-1, I-2, I-3,..., Each of which has predetermined information to be transmitted (for example, characters, words, sentences, predetermined meanings). Are assigned). Alternatively, predetermined information to be transmitted may be assigned to a combination of a plurality of information codes.
  • the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B include a color code output unit 5 and a camera 9 of the transmitting-side mobile phone 3A, and a color code output unit 5 of the receiving-side mobile phone 3B and It arrange
  • the transmitting-side mobile phone 3A outputs a color code will be described with reference to the flowchart of FIG. This process is executed when the user performs a predetermined operation on the operation unit 11 of the transmission-side mobile phone 3A.
  • the user Before outputting the color code, the user operates the operation unit 11 to set in advance an information code to be output from the transmitting-side mobile phone 3A.
  • the information code to be output may be single or plural.
  • the output order is determined according to the user's operation. For example, the order in which the user sets the output of the information code can be set as the order in which the information code is output as it is.
  • step 10 the calling code is output using the color code output unit 5.
  • the intensity of the light output from the color code output unit 5 periodically varies with a period T as shown in FIG.
  • the upper limit of the fluctuating light intensity is set sufficiently large so that the reception-side mobile phone 3B will not be unable to receive due to insufficient light intensity.
  • the lower limit of the intensity of the fluctuating light is set to be sufficiently small so that the reception-side mobile phone 3B does not prevent reception because the light intensity is excessive.
  • step 20 it is determined whether or not the response code output by the receiving-side mobile phone 3B has been read.
  • the response code is a color code output by the receiving side mobile phone 3B when receiving the calling code.
  • Response code is read as follows. First, the camera 9 captures an image in a range including light emitted from the color code output unit 5 of the reception-side mobile phone 3B. And the camera 9 recognizes the area
  • a known color code reading method for example, a method described in Japanese Unexamined Patent Application Publication Nos. 2008-181447 and 2008-27036.
  • the response code also has a light intensity that varies in the period T (see FIG. 6), as in the case of the calling code.
  • the above-described response code is read many times within the period T. Therefore, the response code is read when the light intensity in the response code is near the upper limit, near the lower limit, or in the middle.
  • step 30 the process proceeds to step 30; otherwise, the process stays at step 20. If the response code cannot be read even after a predetermined time has elapsed after the call code is output, this processing may be terminated.
  • step 30 the information code is output using the color code output unit 5.
  • one information code is output according to a predetermined order. Note that the strength of the information code also varies with the period T, as with the calling code (see FIG. 6).
  • step 40 it is determined whether or not the received code output by the mobile phone 3B on the receiving side has been read.
  • the reception code is a color code that is output by the reception-side mobile phone 3B when the information code output in the immediately preceding step 30 is received.
  • the reading of the received code is performed in the same way as reading the response code.
  • the reading of the received code is also executed many times within the period T. If the received code can be read even once among the many times of reading, the process proceeds to step 50. If the received code cannot be read once, step 40 is executed. Stay on.
  • step 50 it is determined whether or not all information codes to be output have been output. If all of the information codes have been output, the process proceeds to step 60. If any information code that has not yet been output remains, the process returns to step 30.
  • step 60 a communication completion code is output. Note that the strength of the communication completion code also varies with the period T, as with the calling code (see FIG. 6).
  • step 60 a communication completion code is output. Note that the strength of the communication completion code also varies with the period T, as with the calling code (see FIG. 6).
  • step 60 a communication completion code is output. Note that the strength of the communication completion code also varies with the period T, as with the calling code (see FIG. 6). (3-2) Next, a process in which the reception-side mobile phone 3B receives the color code output from the transmission-side mobile phone 3A will be described with reference to the flowchart of FIG. This process is executed when the user performs a predetermined operation on the operation unit 11 of the reception-side mobile phone 3B. Alternatively, it may be automatically executed periodically.
  • step 110 it is determined whether or not the calling code output by the transmitting-side mobile phone 3A has been read. As described above, the strength of the calling code varies with the period T (see FIG. 6), but the reading of the calling code is executed a number of times within the period of the period T. If the call code can be read once, the process proceeds to step 120. If the call code is not read once, the process stays at step 110.
  • step 120 the response code is output using the color code output unit 5.
  • step 130 it is determined whether or not the information code output by the transmitting mobile phone 3A has been read. As described above, the intensity of light in the information code varies with the period T (see FIG. 6), but the information code is read many times within the period T, If the information code can be read even once, the process proceeds to step 140. If the information code cannot be read once, the process stays at step 130.
  • step 140 the color code output unit 5 is used to output the received code.
  • step 150 it is determined whether or not the communication completion code output by the transmitting-side mobile phone 3A has been read.
  • the light intensity in the communication completion code varies with the period T (see FIG. 6), but the communication completion code is read many times within the period T, If the communication completion code can be read even once, the process is terminated. If the communication completion code is not read once, the process returns to step 130.
  • (4) Effects produced by the bidirectional color code communication system 1 (i) The bidirectional color code communication system 1 performs communication by transmitting and receiving color codes. Since the color code can contain a large amount of information, using this increases the communication speed. (ii) When outputting a color code, the intensity of the light fluctuates with a period T.
  • the color code is composed of light from a highly directional LED element. Therefore, since the color code reaches a long distance, communication can be performed even when the distance between the respective mobile phones 3 is large. Moreover, since the light of the LED element with high directivity does not diffuse around, it is difficult to intercept the communication content.
  • the bidirectional color code communication system 1 may further include the following functions in addition to the functions described above. If the response code is not returned within a predetermined time even when the calling mobile phone 3A outputs the calling code, the transmitting mobile phone 3A executes the processing shown in the flowchart of FIG.
  • step 210 it outputs the calling code X 1.
  • This call code X 1 is a call code in which the color range to be used is limited to a specific range (for example, red and green) unlike a normal call code.
  • step 220 within a predetermined time from the output of the calling code X 1, output by the recipient mobile phone 3B, it determines whether the response code Y 1 has read.
  • the response code Y 1 is a color code output by the receiving-side mobile phone 3B when the call code X 1 is received.
  • the color range to be used is limited to a specific range (for example, red and green), like the call code X 1 . If the response code Y 1 cannot be read, the process proceeds to step 230. If the response code Y 1 can be read, the process proceeds to step 280.
  • step 230 it outputs the calling code X 2.
  • the call code X 2 is a call code in which the color range to be used is limited to a specific range (for example, green and blue) different from the call code X 1 .
  • step 240 within a predetermined time from the output of the calling code X 2, output by the recipient mobile phone 3B, it determines whether the response code Y 2 has read.
  • the response code Y 2 is a color code output by the receiving-side mobile phone 3B when the call code X 2 is received.
  • the color range to be used is limited to a specific range (for example, green and blue) in the same manner as the call code X 2 . If the response code Y 2 cannot be read, the process proceeds to step 250. If the response code Y 2 can be read, the process proceeds to step 290.
  • step 250 it outputs the calling code X 3.
  • the call code X 3 is a call code in which the color range to be used is limited to a specific range (for example, red and blue) different from the call codes X 1 and X 2 .
  • step 260 within a predetermined time from the output of the calling code X 3, output by the recipient mobile phone 3B, it determines whether the response code Y 3 has read.
  • the response code Y 3 is a color code that is output from the receiving-side mobile phone 3B when the call code X 3 is received.
  • the color range to be used is limited to a specific range (for example, red and blue), like the call code X 3 . If the response code Y 3 cannot be read, the process proceeds to step 270, and if the response code Y 3 can be read, the process proceeds to step 300.
  • step 270 a communication disabled display is performed on the display 13.
  • the process proceeds to step 280, and the color code used for communication is limited to that whose color range is the color range in the call code X 1 and the response code Y 1 . .
  • step 240 If the response code Y 2 can be read in step 240, the process proceeds to step 290, where the color code used for communication is limited to that whose color range is the color range of the call code X 2 and the response code Y 2 . .
  • the read response code Y 3 in the step 260 proceeds to step 300, a color code that is used to communicate, the color range is limited to the range of colors in the calling code X 3 and response codes Y 3 .
  • the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B exist, some colors used for the color code may vary depending on the environment. It may be difficult to recognize with 3B.
  • the one that has returned the response code that is, the code that can be read normally by the receiving mobile phone 3B
  • the response code is selected and the response
  • the color range used in the code is the color range of the color code used in communication. As a result, the color of the color code used for communication is limited to a color that can be read by the mobile phone 3 on the other side, so that color code communication can be reliably performed.
  • the color code locking / unlocking system 101 includes a mobile phone (color code output device, color code communication device) 3 and a locking / unlocking device 103.
  • the locking / unlocking device 103 is a device that is attached near a door (not shown) in a building or vehicle and locks and unlocks the door.
  • the cellular phone 3 is basically the same as the cellular phone 3 in the first embodiment, but is further used in the control unit 7 (see FIG. 1) for the lock / unlock code update process described later. And a known random number generator.
  • the locking / unlocking device 103 includes nine light irradiation units 105-1 to 105-9, and the light irradiation units 105-1 to 105-9 are collectively referred to as a color code output unit 105.
  • the locking / unlocking device 103 includes a control unit 107, a camera 109, and a locking / unlocking unit (locking / unlocking unit) 111.
  • the color code output unit 105 and the camera 109 are the same as the color code output unit 5 and the camera 9 of the mobile phone 3 in the first embodiment, respectively.
  • the color code output unit 105 and the lens of the camera 109 are attached to the same plane in a housing (not shown) of the locking / unlocking device 103.
  • the control unit 107 is a known computer including a CPU, a ROM, a RAM, and the like, and controls each unit of the locking / unlocking device 103.
  • a process of outputting a color code using the color code output unit 105 and a color code output from the mobile phone 3 using the camera 109 are received. Processing is included.
  • the control unit 107 executes processing to be described later.
  • the control unit 107 stores a lock / unlock code, which will be described later, in a rewritable storage element.
  • the locking / unlocking unit 111 executes the above-described locking or unlocking of the door according to an instruction from the control unit 107.
  • (2) Processing Performed by Color Code Locking / Unlocking System 101 Processing performed by the color code locking / unlocking system 101 will be described.
  • the mobile phone 3 and the locking / unlocking device 103 can perform color code communication in the same manner as the communication between the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B in the first embodiment.
  • the mobile phone 3 functions as the transmitting-side mobile phone 3A in the first embodiment
  • the locking / unlocking device 103 functions as the receiving-side mobile phone 3B in the first embodiment.
  • the locking / unlocking device 103 receives the color code output from the color code output unit 5 of the mobile phone 3 using the camera 109, and the color code output unit of the locking / unlocking device 103.
  • the mobile phone 3 receives the color code output from 105 using the camera 9.
  • the mobile phone 3 can output a locking / unlocking code (setting color code) which is a kind of information code by the color code communication described above, and the locking / unlocking device 103 receives the locking / unlocking code. can do.
  • This locking / unlocking code is a color code that instructs locking or unlocking of a key.
  • the mobile phone 3 can output a change code, which is a kind of information code, by the color code communication described above, and the locking / unlocking device 103 can receive the change code.
  • This change code is a color code instructing to change the lock / unlock code set in the lock / unlock device 103.
  • the user outputs a locking / unlocking code from the mobile phone 3 when locking or unlocking the door.
  • the user when updating the locking / unlocking code, the user outputs both the update code and the locking / unlocking code after being updated by a method described later, using the mobile phone 3. (2-2) Next, the processing executed by the locking / unlocking device 103 when a locking / unlocking code or change code is received will be described with reference to the flowchart of FIG.
  • step 310 it is determined whether or not the received color code (information code) includes both the change code and the lock / unlock code. If both the change code and the lock / unlock code are included, the process proceeds to step 320. If neither the change code nor the lock / unlock code is included, the process proceeds to step 330.
  • step 320 the control unit 107 of the locking / unlocking device 103 overwrites the conventional locking / unlocking code with the locking / unlocking code received in step 310. After that, the overwritten locking / unlocking code is used in steps 330 and 340 described later. After changing the lock / unlock code, this process is terminated.
  • step 310 determines whether one of the change code and the lock / unlock code is not included. If it is determined in step 310 that either one of the change code and the lock / unlock code is not included, the process proceeds to step 330, and the received color code (information code) is added to the lock / unlock device 103. It is determined whether or not the same locking / unlocking code as the locking / unlocking code stored in the control unit 107 is included. If the lock / unlock code is included, the process proceeds to step 340. If not included, the process ends.
  • step 340 the door is locked or unlocked using the locking / unlocking unit 111. That is, locking is performed when the door is unlocked, and unlocking is performed when the door is locked. (2-3) Next, the process of updating the lock / unlock code in the mobile phone 3 will be described based on the flowchart of FIG. This process is executed when the user performs a predetermined operation on the operation unit 11 of the mobile phone 3.
  • step 410 nine random numbers are generated by the random number generator included in the control unit 7 of the mobile phone 3.
  • step 420 the light colors of the light irradiators 5-1 to 5-9 are set randomly based on the nine random numbers. That is, the control unit 7 is provided with a map that defines the relationship between the random number and the color of light, and the light color corresponding to the generated random number on the map for each of the light irradiation units 5-1 to 5-9. Set.
  • the color code in which the light colors of the light irradiation units 5-1 to 5-9 are set as described above is stored in the control unit 7 of the mobile phone 3 as the updated locking / unlocking code. Thereafter, the updated code is used as the lock / unlock code to be output to the lock / unlock device 103.
  • step 430 color code communication is performed with the locking / unlocking device 103 by the above-described method, and the update code and the updated locking / unlocking code are output.
  • the locking / unlocking device 103 overwrites the received locking / unlocking code with the conventional locking / unlocking code as described in steps 310 and 320, and thereafter, the steps 330 and 340 are performed. In this process, the overwritten lock / unlock code is used.
  • the above processing may be automatically executed every predetermined time. Further, the random number may be acquired from the outside instead of being generated by the random number generator of the mobile phone 3.
  • (3) Effects of the color code locking / unlocking system 101 (i) In the color code locking / unlocking system 101, the mobile phone 3 transmits the locking / unlocking code which is a color code, and the locking / unlocking device 103 receives the locking / unlocking code, and correct locking / Lock / unlock when it is determined that the code is unlocked. Since the color code can contain a large amount of information, the use of this makes it difficult to illegally unlock and increases safety.
  • the locking / unlocking code which is a color code, is composed of light from a highly directional LED element.
  • the locking / unlocking code is sent only in the necessary direction and does not spread around, so that it is difficult to intercept. As a result, safety is increased.
  • the light of the locking / unlocking code as the color code can be seen with the naked eye, the user can easily know whether the locking / unlocking process is being performed at that time.
  • the locking / unlocking code can be easily updated. As a result, unauthorized unlocking becomes more difficult and safety is further increased.
  • the bidirectional color code communication system in the present embodiment includes a plurality of vehicles (color code output device, color code communication device) 201.
  • Each of the plurality of vehicles 201 includes a color code output unit 5, a control unit 7, a camera 9, an operation unit 11, and a display 13 (see FIG. 1) that are basically the same as those of the mobile phone 3 in the first embodiment. I have.
  • the vehicle 201 includes the color code output unit 5 at both the front end and the rear end, and the vehicle 201 includes the camera 9 at both the front end and the rear end.
  • the color code output unit 5 provided at the front end can output the color code toward the front of the vehicle 201, and the color code output unit 5 provided at the rear end can output the color code toward the rear of the vehicle 201.
  • the camera 9 provided at the front end can photograph the color code output from the front toward the host vehicle, and the camera 9 provided at the rear end is output from the rear toward the host vehicle. Color code can be taken.
  • the color code output unit 5 provided at the front end of the vehicle 201 may be a headlight or may be provided separately from the headlight. Further, the color code output unit 5 provided at the rear end of the vehicle 201 may be a tail lamp or may be provided separately from the tail lamp.
  • the vehicle 201 includes an operation unit 11 and a display 13 in an instrument panel (not shown) in the passenger compartment.
  • the two vehicles 201 can perform color code communication in the same manner as the communication between the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B in the first embodiment in a state where they are connected in the front-rear direction. it can. That is, the color code output from the color code output unit 5 provided at the front end of the rear vehicle 201 is photographed by the camera 9 provided at the rear end of the front vehicle 201, and the rear end of the front vehicle 201 is captured. The color code output from the color code output unit 5 provided in the above can be photographed by the camera 9 provided at the front end of the rear vehicle 201 to perform two-way color code communication.
  • the bidirectional color code communication system includes a lighthouse (color code output device, color code communication device) 301 and a ship (color code output device, color code communication device) 303.
  • the lighthouse 301 and the ship 303 are respectively the same color code output unit 5, control unit 7, camera 9, operation unit 11 and display 13 as the mobile phone 3 in the first embodiment (see FIG. 1). It has.
  • the lighthouse 301 includes the color code output unit 5 and the camera 9 in the vicinity of the upper end thereof, and is configured to be able to change the angles in the vertical and horizontal directions.
  • the ship 303 includes the color code output unit 5 and the camera 9 in the vicinity of the upper end of the central bridge, and is configured to be able to change the angles in the vertical and horizontal directions.
  • the lighthouse 301 includes the operation unit 11 and the display 13 in an operation room (not shown) in the lighthouse.
  • the ship 303 includes the operation unit 11 and the display 13 in the cockpit (not shown). I have.
  • the lighthouse 301 and the ship 303 can perform color code communication in the same manner as the communication between the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B in the first embodiment. That is, the color code output by the color code output unit 5 provided in one of the lighthouse 301 and the ship 303 is photographed by the camera 9 provided in the other of the lighthouse 301 and the ship 303, and is interactively displayed. Color code communication can be performed.
  • the arrangement pattern of the light irradiation units 5-1 to 5-9 is not limited to that shown in FIG. 3, and can be arranged in an arbitrary pattern.
  • the light irradiation units 5-1 to 5-9 can be arranged on one straight line in the vertical or horizontal direction. Moreover, it can also arrange
  • the number of light irradiation units (the number of cells constituting the color code) provided in the color code output unit 5 is not limited to 9, and any number (for example, 4, 5, 6, 7, 8, 10, 16). 25, 36...
  • each cell of the color code is not limited to R, G, and B, and can be any color (including an achromatic color).
  • Arbitrary colors can be realized by adjusting the ratio of the light intensity of the red LED element 15, the green LED element 17, and the blue LED element 19. Further, some cells in the color code may be in a state where light is not lit.
  • the display 13 of the mobile phone 3 may be a color code output unit. That is, a color code can be output by setting a plurality of areas on the screen of the display 13 and irradiating light of a predetermined color from each area. In this case, each area set on the display 13 becomes a cell constituting a color code.
  • the cell arrangement pattern in the display 13 may be a matrix of m ⁇ n (m and n are arbitrary integers) as shown in FIG. 3, may be arranged on a straight line in the vertical or horizontal direction, or may be on concentric circles. Arrangement is also acceptable.
  • the display 13 can be controlled in the same manner as the control of the color code output unit 5 in the first embodiment.
  • the color code locking / unlocking system 101 of the second embodiment can be used not only for locking / unlocking doors and the like, but also for controlling permission / non-permission of activation of vehicles and various devices, for example. .
  • the start of the vehicle or the like engine or motor start, power ON
  • the set color code is not input. May not allow the start of the vehicle or the like.
  • the locking may be automatically performed when the door or the like is closed (auto-lock), and only the unlocking of the door or the like may be executed by transmitting / receiving the set color code.
  • the two-way color code communication system may be composed of an airport control tower and an aircraft. That is, the airport control tower (or runway) and the aircraft are each provided with the color code output unit 5 and the camera 9, and color code communication can be performed between the airport control tower and the aircraft.
  • the bidirectional color code communication system may be configured by the mobile phone 3 and the vehicle 201. That is, the color code output from the mobile phone 3 is photographed by the camera 9 provided in the vehicle 201, and the color code output from the vehicle 201 is photographed by the camera 9 of the mobile phone 3 to obtain a bidirectional color code. Communication can be performed. Furthermore, the bi-directional color code communication system may perform color code communication between ships, or may perform color code communication between aircrafts.

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Abstract

A color code output device according to the present invention comprises: a color code output unit, wherein optical illumination units that are capable of changing the color of light are multiply arrayed; and a control unit that controls the color of light illuminated by the optical illumination units. A color code communication device according to the present invention comprises: a color code output unit, wherein optical illumination units that are capable of changing the color of light are multiply arrayed; a control unit that controls the color of light illuminated by the optical illumination units; and a color code reading unit that reads a color code. A color code communication system according to the present invention is configured so as to include: the color code output device; and a color code reading device that reads the color code that is outputted from the color code output device.

Description

カラーコード出力装置、カラーコード通信装置、及びカラーコード通信システムColor code output device, color code communication device, and color code communication system 関連出願の相互参照Cross-reference of related applications
　本国際出願は、２０１１年１月１３日に日本国特許庁に出願された日本国特許出願第２０１１－４９４５号に基づく優先権を主張するものであり、日本国特許出願第２０１１－４９４５号の全内容を本国際出願に援用する。 This international application claims priority based on Japanese Patent Application No. 2011-4945 filed with the Japan Patent Office on January 13, 2011, and is based on Japanese Patent Application No. 2011-4945. The entire contents are incorporated into this international application.
　本発明は、例えば、カラーコードにより通信を行うカラーコード出力装置、カラーコード通信装置、及びカラーコード通信システムに関する。 The present invention relates to, for example, a color code output device, a color code communication device, and a color code communication system that perform communication using a color code.
　可視光を用いて通信を行う可視光通信装置が知られている（特許文献１参照）。この可視光通信装置では、単一の光源から照射される可視光を高速に点滅させることでデータを送信する。 A visible light communication device that performs communication using visible light is known (see Patent Document 1). In this visible light communication device, data is transmitted by blinking visible light emitted from a single light source at high speed.
特許第４３３７８１４号公報Japanese Patent No. 4333714
　従来の可視光通信装置は、単一の光源を点滅させることでデータを送信するものであるから、ある時点における光のパターンは、その光源がＯＮのパターンと、ＯＦＦのパターンとの２種類しかない。そのため、１つの光のパターンに含めることができる情報量が少なく、結果として、通信速度を十分に高めることができない。 Since a conventional visible light communication device transmits data by blinking a single light source, there are only two types of light patterns at a certain point in time: a light source ON pattern and an OFF pattern. Absent. Therefore, the amount of information that can be included in one light pattern is small, and as a result, the communication speed cannot be sufficiently increased.
　本発明の一側面においては、通信速度を高めることができるカラーコード出力装置等を提供することが望ましい。 In one aspect of the present invention, it is desirable to provide a color code output device or the like that can increase the communication speed.
　本発明のカラーコード出力装置は、光の色を変化させることができる光照射部が複数配列されたカラーコード出力部と、前記光照射部が照射する光の色を制御する制御部と、を備えることを特徴とする。 The color code output device of the present invention includes a color code output unit in which a plurality of light irradiation units capable of changing the color of light is arranged, and a control unit that controls the color of light emitted by the light irradiation unit. It is characterized by providing.
　本発明のカラーコード出力装置は、光の色を変化させることができる光照射部が複数配列されたカラーコード出力部により、カラーコードを出力することができる。そして、制御部により、各光照射部が照射する光の色を変え、カラーコードを自由に変化させることができる。 The color code output device of the present invention can output a color code by a color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged. Then, the color code can be freely changed by changing the color of light emitted by each light irradiation unit by the control unit.
　カラーコードは大容量の情報を含むことができるから、本発明のカラーコード出力装置は、カラーコードを出力し、そのカラーコードを自由に変化させることにより、例えば、高速通信を行うことができる。 Since the color code can include a large amount of information, the color code output device of the present invention can perform high-speed communication, for example, by outputting the color code and freely changing the color code.
　また、カラーコード出力部により出力されたカラーコードは指向性が高いので、遠距離にまで到達する。そのため、遠距離間でも通信を行うことができる。また、指向性が高いカラーコードは周囲に拡散しないので、通信内容を傍受されにくい。また、カラーコードの光は肉眼で見ることができるので、ユーザは、その時通信が行われているか否かを容易に知ることができる。 Also, since the color code output from the color code output unit has high directivity, it reaches a long distance. Therefore, communication can be performed even over a long distance. In addition, since the color code with high directivity does not spread around, the communication content is not easily intercepted. Further, since the light of the color code can be seen with the naked eye, the user can easily know whether or not communication is being performed at that time.
　本発明のカラーコード出力装置において、制御部は、光照射部が照射する光の強度を周期的に変動させることが好ましい。この場合、例えば、カラーコードの読み取りを、所定時間おきに複数回試みるようにすれば、カラーコードにおける光の強度が高いとき、中間のとき、低いときに、それぞれカラーコードの読み取りを行うことができる。その結果、カラーコードの光の強度が過大又は過小であるため読み取れないというようなことがなく、カラーコードを確実に読み取ることができる。 In the color code output device of the present invention, it is preferable that the control unit periodically varies the intensity of light emitted from the light irradiation unit. In this case, for example, if the color code is read a plurality of times at predetermined intervals, the color code can be read when the light intensity in the color code is high, intermediate, and low. it can. As a result, the color code can be reliably read without being unreadable because the light intensity of the color code is too large or too small.
　本発明のカラーコード通信装置は、光の色を変化させることができる光照射部が複数配列されたカラーコード出力部と、前記光照射部が照射する光の色を制御する制御部と、カラーコードを読み取るカラーコード読み取り部と、を備えることを特徴とする。 The color code communication device of the present invention includes a color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged, a control unit that controls the color of light emitted by the light irradiation unit, and a color And a color code reading unit for reading the code.
　本発明のカラーコード通信装置は、光の色を変化させることができる光照射部が複数配列されたカラーコード出力部により、カラーコードを出力することができる。そして、制御部により、各光照射部が照射する光の色を変え、カラーコードを自由に変化させることができる。また、本発明のカラーコード通信装置は、他のカラーコード通信装置が出力したカラーコードを、読み取り部により読み取ることができる。 The color code communication device of the present invention can output a color code by a color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged. Then, the color code can be freely changed by changing the color of light emitted by each light irradiation unit by the control unit. The color code communication device of the present invention can read the color code output from another color code communication device by the reading unit.
　カラーコードは大容量の情報を含むことができるから、本発明のカラーコード通信装置は、カラーコードの出力、及び読み取りを行うことで、例えば、高速通信を行うことができる。 Since the color code can contain a large amount of information, the color code communication apparatus of the present invention can perform high-speed communication, for example, by outputting and reading the color code.
　また、カラーコード出力部により出力されたカラーコードは指向性が高いので、遠距離にまで到達する。そのため、遠距離間でも通信を行うことができる。また、指向性が高いカラーコードは周囲に拡散しないので、通信内容を傍受されにくい。また、カラーコードの光は肉眼で見ることができるので、ユーザは、その時通信が行われているか否かを容易に知ることができる。 Also, since the color code output from the color code output unit has high directivity, it reaches a long distance. Therefore, communication can be performed even over a long distance. In addition, since the color code with high directivity does not spread around, the communication content is not easily intercepted. Further, since the light of the color code can be seen with the naked eye, the user can easily know whether or not communication is being performed at that time.
　本発明のカラーコード通信装置において、制御部は、光照射部が照射する光の強度を周期的に変動させることが好ましい。この場合、例えば、カラーコードの読み取りを、所定時間おきに複数回試みるようにすれば、カラーコードにおける光の強度が高いとき、中間のとき、低いときに、それぞれカラーコードの読み取りを行うことができる。その結果、カラーコードの光の強度が過大又は過小であるため読み取れないというようなことがなく、カラーコードを確実に読み取ることができる。 In the color code communication device of the present invention, it is preferable that the control unit periodically varies the intensity of light emitted from the light irradiation unit. In this case, for example, if the color code is read a plurality of times at predetermined intervals, the color code can be read when the light intensity in the color code is high, intermediate, and low. it can. As a result, the color code can be reliably read without being unreadable because the light intensity of the color code is too large or too small.
　本発明のカラーコード通信システムは、上述したカラーコード出力装置と、そのカラーコード出力装置から出力されたカラーコードを読み取るカラーコード読み取り装置と、を含んで構成される。 The color code communication system of the present invention includes the above-described color code output device and a color code reading device that reads the color code output from the color code output device.
　本発明のカラーコード通信システムでは、カラーコード出力装置によりカラーコードを出力し、そのカラーコードをカラーコード読み取り装置で読み取ることにより、カラーコード通信を行うことができる。カラーコードは大容量の情報を含むことができるから、本発明のカラーコード通信システムは、高速通信を行うことができる。 In the color code communication system of the present invention, color code communication can be performed by outputting a color code with a color code output device and reading the color code with a color code reader. Since the color code can include a large amount of information, the color code communication system of the present invention can perform high-speed communication.
　本発明の双方向カラーコード通信システムは、複数の上述したカラーコード通信装置を含んで構成される。
　本発明の双方向カラーコード通信システムでは、いずれかのカラーコード通信装置Ａによりカラーコードを出力し、そのカラーコードを他のカラーコード通信装置Ｂで読み取ることにより、カラーコード通信を行うことができる。また、それとは逆に、カラーコード通信装置Ｂによりカラーコードを出力し、そのカラーコードをカラーコード通信装置Ａで読み取ることにより、カラーコード通信を行うこともできる。 The bidirectional color code communication system of the present invention includes a plurality of the above-described color code communication devices.
In the bidirectional color code communication system according to the present invention, color code communication can be performed by outputting a color code by any one of the color code communication devices A and reading the color code by another color code communication device B. . On the contrary, color code communication can also be performed by outputting a color code by the color code communication device B and reading the color code by the color code communication device A.
　カラーコードは大容量の情報を含むことができるから、本発明の双方向カラーコード通信システムは、高速通信を行うことができる。
　本発明の双方向カラーコード通信システムは、以下のものであることが好ましい。すなわち、前記カラーコード通信装置は、他のカラーコード通信装置から出力されたカラーコードを前記カラーコード読み取り部により読み取った場合、前記他のカラーコード通信装置に受信信号を出力する受信信号出力部と、前記カラーコード出力部により、使用する色の範囲が異なる複数のカラーコードを出力する複数のカラーコード出力部と、前記複数のカラーコードのそれぞれに対応する前記受信信号の受信状態に基づき、前記カラーコード出力部により出力するカラーコードの色の範囲を設定する色範囲設定部とを備えることが好ましい。 Since the color code can include a large amount of information, the bidirectional color code communication system of the present invention can perform high-speed communication.
The bidirectional color code communication system of the present invention is preferably as follows. That is, the color code communication device, when the color code output from another color code communication device is read by the color code reading unit, a reception signal output unit that outputs a reception signal to the other color code communication device; A plurality of color code output units that output a plurality of color codes having different color ranges to be used by the color code output unit, and a reception state of the reception signal corresponding to each of the plurality of color codes, It is preferable to include a color range setting unit that sets a color range of the color code output by the color code output unit.
　上記の構成を備える場合、以下の効果が得られる。カラーコード通信装置が存在する場所の環境（例えば、周囲の光の色や強さ、空気の透明度等）により、カラーコードに使用される一部の色は、相手側のカラーコード通信装置で読み取り難いことがある。上記の構成を備える場合、送信側のカラーコード通信装置から出力された、使用する色の範囲が異なる複数のカラーコードのうち、相手側のカラーコード通信装置から受信信号が返されたもの（すなわち、相手側のカラーコード通信装置で正常に読み取れたもの）を選択し、その正常に読み取れたカラーコードの色の範囲を、それ以降においてカラーコード出力部により出力するカラーコードの色の範囲（通信で使用するカラーコードの色の範囲）とする。そのことにより、通信で使用するカラーコードの色は、相手側のカラーコード通信装置で読み取れる色に限定されるから、確実にカラーコード通信を行うことができる。 When the above configuration is provided, the following effects can be obtained. Depending on the environment where the color code communication device is located (for example, the color and intensity of ambient light, transparency of the air, etc.), some colors used for the color code are read by the other color code communication device. It may be difficult. In the case of having the above configuration, among the plurality of color codes output from the color code communication device on the transmission side and having a different color range to be used, a reception signal is returned from the color code communication device on the other side (that is, Select the color code that can be read normally by the other party's color code communication device), and the color code color range that is read normally by the color code output unit (communication) The color range of the color code used in As a result, the color of the color code used for communication is limited to a color that can be read by the color code communication device on the other side, so that color code communication can be performed reliably.
　本発明のカラーコード施錠／開錠システムは、上述したカラーコード出力装置であって、所定の設定カラーコードを出力可能なカラーコード出力装置と、前記カラーコード出力装置により出力されたカラーコードを読み取るカラーコード読み取り部、及び前記カラーコード読み取り部で読み取ったカラーコードが前記設定カラーコードである場合、施錠及び／又は開錠を行う施錠／開錠部を備えた施錠／開錠装置と、を含んで構成される。 The color code locking / unlocking system of the present invention is the color code output device described above, which can output a predetermined set color code, and reads the color code output by the color code output device. A color code reading unit, and a locking / unlocking device having a locking / unlocking unit for locking and / or unlocking when the color code read by the color code reading unit is the set color code. Consists of.
　本発明のカラーコード施錠／開錠システムは、カラーコードである設定カラーコードを送受信することで施錠／開錠を行う。カラーコードは大容量の情報を含むことができるから、これを用いることにより、不正な開錠が困難になり、安全性が高まる。 The color code locking / unlocking system of the present invention performs locking / unlocking by transmitting / receiving a set color code which is a color code. Since the color code can contain a large amount of information, the use of this makes it difficult to illegally unlock and increases safety.
　また、カラーコードである設定カラーコードは、指向性が高く、必要な方向のみに送られ、周囲に広がらないので、傍受されにくい。その結果、安全性が高まる。
　また、カラーコードである設定カラーコードの光は肉眼で見ることができるので、ユーザは、その時施錠／開錠の処理が行われているか否かを容易に知ることができる。 Also, the set color code, which is a color code, has high directivity, is sent only in the necessary direction, and does not spread around, so it is difficult to intercept. As a result, safety is increased.
Further, since the light of the set color code which is the color code can be seen with the naked eye, the user can easily know whether or not the locking / unlocking process is being performed at that time.
　本発明のカラーコード施錠／開錠システムは、以下のものであることが好ましい。すなわち、前記カラーコード出力装置は、前記設定カラーコードを更新する更新部と、更新後の前記設定カラーコードを出力する更新後カラーコード出力部とを備え、前記施錠／開錠装置は、前記更新後カラーコード出力部により出力された更新後の前記設定カラーコードを読み取り、その更新後の前記設定カラーコードを前記施錠／開錠部にて用いる前記設定カラーコードとすることが好ましい。 The color code locking / unlocking system of the present invention is preferably as follows. That is, the color code output device includes an update unit that updates the set color code and an updated color code output unit that outputs the updated set color code, and the locking / unlocking device includes the update It is preferable that the updated set color code output by the subsequent color code output unit is read and the updated set color code is used as the set color code used in the locking / unlocking unit.
　この場合、設定カラーコードを容易に更新することができる。そのことにより、不正な開錠が一層困難になり、安全性がより高まる。
　本発明において、カラーコード（カラージップメディア社所有の登録商標、特開２００１－３１９２００号等で開示）とは、カラーバーコードとも称される、カラーパターンをコード化している２次元コードシステムであって、カラーコードを構成するセル（ピクセル）の少なくとも一部の色が有彩色であるものをいう。全てのセルの色が有彩色であってもよいし、一部のセルのみが有彩色であってもよい。有彩色でないセルは、例えば、無彩色（白、灰色、黒等）の光が照射されていてもよいし、消灯していてもよい。カラーコードを構成するセルの色（光照射部が照射する光の色）は、任意の色とすることができ、例えば、赤、緑、青、及びそれらの１以上を任意の比率で混合した色のいずれかとすることができる。 In this case, the set color code can be easily updated. As a result, unauthorized unlocking becomes more difficult and safety is further increased.
In the present invention, a color code (registered trademark owned by Color Zip Media, disclosed in Japanese Patent Application Laid-Open No. 2001-319200) is a two-dimensional code system that codes a color pattern, also called a color barcode. In other words, at least some of the colors of cells (pixels) constituting the color code are chromatic colors. All the cells may be chromatic, or only some of the cells may be chromatic. For example, a non-chromatic cell may be irradiated with achromatic light (white, gray, black, etc.) or may be turned off. The color of the cells constituting the color code (the color of the light irradiated by the light irradiation unit) can be any color, for example, red, green, blue, and one or more of them are mixed in any ratio Can be any of the colors.
　前記光照射部としては、光を照射する周知の機構を広く用いることができ、特に、ＬＥＤが好ましい。カラーコードを出力するために光照射部が照射する光は、可視光であることが好ましい。可視光の波長の範囲は、例えば、ＪＩＳ　Ｚ８１２０で規定する範囲とすることができる。 As the light irradiation unit, a well-known mechanism for irradiating light can be widely used, and an LED is particularly preferable. The light irradiated by the light irradiation unit to output the color code is preferably visible light. The visible light wavelength range can be, for example, a range defined by JIS Z8120.
　前記カラーコード出力部において、複数の光照射部の配列は、互いの位置関係が固定された配列とすることができる。配列のパターンは特に限定されず、様々なパターンで配列することができる。例えば、縦ｍ行、横ｎ列のマトリックス状の配列（ｍ、ｎは任意の整数）、縦又は横一列の配列、曲面（例えば円、楕円等）に沿った配列とすることができる。 In the color code output unit, the arrangement of the plurality of light irradiation units may be an arrangement in which the positional relationship is fixed. The arrangement pattern is not particularly limited, and can be arranged in various patterns. For example, it may be a matrix-like array (m and n are arbitrary integers) of m rows and n columns, an array of columns or columns, and an array along a curved surface (for example, a circle or an ellipse).
双方向カラーコード通信システム１を構成する携帯電話３の構成を表すブロック図である。1 is a block diagram showing a configuration of a mobile phone 3 that constitutes a bidirectional color code communication system 1. FIG. カラーコード出力部５の構成を表すブロック図である。3 is a block diagram illustrating a configuration of a color code output unit 5. FIG. 携帯電話３の構成を表す斜視図である。2 is a perspective view illustrating a configuration of a mobile phone 3. FIG. 送信側携帯電話３Ａがカラーコードを出力する処理を表すフローチャートである。It is a flowchart showing the process in which 3 A of transmission side mobile telephones output a color code. カラーコード出力部５が出力するカラーコードの種類を表す説明図である。It is explanatory drawing showing the kind of color code which the color code output part 5 outputs. カラーコード出力部５が出力する光の強度変動を表すグラフである。It is a graph showing the intensity fluctuation | variation of the light which the color code output part 5 outputs. 受信側携帯電話３Ｂがカラーコードを受信する処理を表すフローチャートである。It is a flowchart showing the process in which the receiving side mobile telephone 3B receives a color code. 送信側携帯電話３Ａが実行する処理を表すフローチャートである。It is a flowchart showing the process which 3A of transmission side mobile telephones perform. カラーコード施錠／開錠システム１０１の構成を表す説明図である。2 is an explanatory diagram illustrating a configuration of a color code locking / unlocking system 101. FIG. 施錠／開錠コード又は変更コードを受信したときに施錠／開錠装置１０３が実行する処理を表すフローチャートである。It is a flowchart showing the process which the locking / unlocking apparatus 103 performs, when a locking / unlocking code or a change code is received. 携帯電話３において施錠／開錠コードを更新する処理を表すフローチャートである。4 is a flowchart showing a process for updating a lock / unlock code in the mobile phone 3; 複数の車両から成る双方向カラーコード通信システムの構成を表す説明図である。It is explanatory drawing showing the structure of the bidirectional | two-way color code communication system which consists of a some vehicle. 灯台と船舶とから成る双方向カラーコード通信システムの構成を表す説明図である。It is explanatory drawing showing the structure of the bidirectional | two-way color code communication system which consists of a lighthouse and a ship.
１・・・双方向カラーコード通信システム、３・・・携帯電話、３Ａ・・・送信側携帯電話、３Ｂ・・・受信側携帯電話、５・・・カラーコード出力部、５－１～５－９・・・光照射部、７・・・制御部、９・・・カメラ、１１・・・操作部、１３・・・ディスプレイ、１５・・・赤色ＬＥＤ素子、１７・・・緑色ＬＥＤ素子、１９・・・青色ＬＥＤ素子、１０１・・・カラーコード施錠／開錠システム、１０３・・・施錠／開錠装置、１０５・・・カラーコード出力部、１０５－１～１０５－９・・・光照射部、１０７・・・制御部、１０９・・・カメラ、１１１・・・施錠／開錠部、２０１・・・車両、３０１・・・灯台、３０３・・・船舶 DESCRIPTION OF SYMBOLS 1 ... Two-way color code communication system, 3 ... Mobile phone, 3A ... Transmission side mobile phone, 3B ... Reception side mobile phone, 5 ... Color code output part, 5-1 to 5 -9: Light irradiation unit, 7: Control unit, 9 ... Camera, 11 ... Operation unit, 13 ... Display, 15 ... Red LED element, 17 ... Green LED element , 19 ... Blue LED element, 101 ... Color code locking / unlocking system, 103 ... Locking / unlocking device, 105 ... Color code output unit, 105-1 to 105-9 ... Light irradiating unit, 107 ... control unit, 109 ... camera, 111 ... locking / unlocking unit, 201 ... vehicle, 301 ... lighthouse, 303 ... ship
　本発明の実施形態を図面に基づいて説明する。
　１．第１の実施形態
（１）双方向カラーコード通信システム１の構成
　双方向カラーコード通信システム１の構成を、図１～図３に基づいて説明する。図１は、双方向カラーコード通信システム１を構成する携帯電話（カラーコード出力装置、カラーコード通信装置）３の構成を表すブロック図であり、図２は後述するカラーコード出力部５の構成を表すブロック図であり、図３は携帯電話３の構成を表す斜視図である。 Embodiments of the present invention will be described with reference to the drawings.
1. First Embodiment (1) Configuration of Bidirectional Color Code Communication System 1 The configuration of a bidirectional color code communication system 1 will be described with reference to FIGS. FIG. 1 is a block diagram showing a configuration of a mobile phone (color code output device, color code communication device) 3 constituting a bidirectional color code communication system 1, and FIG. 2 shows a configuration of a color code output unit 5 described later. FIG. 3 is a perspective view showing the configuration of the mobile phone 3.
　双方向カラーコード通信システム１は、複数の携帯電話３から構成される。携帯電話３は、図１及び図３に示すように、９つの光照射部５－１～５－９を備えており、光照射部５－１～５－９を総称してカラーコード出力部５とする。また、携帯電話３は、制御部７、カメラ（読み取り部）９、操作部１１、及びディスプレイ１３を備えている。 The bidirectional color code communication system 1 is composed of a plurality of mobile phones 3. As shown in FIGS. 1 and 3, the mobile phone 3 includes nine light irradiation units 5-1 to 5-9. The light irradiation units 5-1 to 5-9 are collectively referred to as a color code output unit. 5 The mobile phone 3 includes a control unit 7, a camera (reading unit) 9, an operation unit 11, and a display 13.
　光照射部５－１は、図２に示すように、赤色ＬＥＤ素子１５、緑色ＬＥＤ素子１７、及び青色ＬＥＤ素子１９を備えている。制御部７は、各ＬＥＤ素子のＯＮ／ＯＦＦ、及び点灯強度を個別に制御することができる。よって、光照射部５－１は、各ＬＥＤ素子のＯＮ／ＯＦＦ、及び点灯強度を調整することにより、任意の色を、任意の強度で照射することができる。また、各ＬＥＤ素子は、携帯電話３の筐体面に直交する方向（図３において矢印で示す方向Ｄ）に高い指向性の光を照射するように構成されている。よって、光照射部５－１は、方向Ｄの方向に指向性の高い光を照射することができる。光照射部５－２～５－９も、光照射部５－１と同様に構成されている。 The light irradiation unit 5-1 includes a red LED element 15, a green LED element 17, and a blue LED element 19, as shown in FIG. The control unit 7 can individually control ON / OFF and lighting intensity of each LED element. Therefore, the light irradiation unit 5-1 can irradiate an arbitrary color with an arbitrary intensity by adjusting ON / OFF and lighting intensity of each LED element. Each LED element is configured to emit light having high directivity in a direction orthogonal to the housing surface of the mobile phone 3 (direction D indicated by an arrow in FIG. 3). Therefore, the light irradiation unit 5-1 can irradiate light with high directivity in the direction D. The light irradiation units 5-2 to 5-9 are configured in the same manner as the light irradiation unit 5-1.
　カラーコード出力部５において、光照射部５－１～５－９は、図３に示すように、３×３のマトリックス状に配置されている。光照射部５－１～５－９のそれぞれに、所定の色の光を照射させることにより、光照射部５－１～５－９のそれぞれを１つのセルとするカラーコードを前記方向Ｄに向けて出力することができる。 In the color code output unit 5, the light irradiation units 5-1 to 5-9 are arranged in a 3 × 3 matrix as shown in FIG. By irradiating each of the light irradiation units 5-1 to 5-9 with light of a predetermined color, a color code having each of the light irradiation units 5-1 to 5-9 as one cell in the direction D Can be output.
　制御部７は、ＣＰＵ、ＲＯＭ、ＲＡＭ等を備える周知のコンピュータであり、携帯電話３の各部を制御する。その制御には、光照射部５－１～５－９それぞれが照射する光の色、及び強度を個別に設定し、カラーコード出力部５が出力するカラーコードの内容を決める処理が含まれる。また、制御部７は、後述する処理を実行する。 The control unit 7 is a known computer including a CPU, a ROM, a RAM, and the like, and controls each unit of the mobile phone 3. The control includes processing for individually setting the color and intensity of light emitted by each of the light irradiation units 5-1 to 5-9 and determining the content of the color code output by the color code output unit 5. Moreover, the control part 7 performs the process mentioned later.
　カメラ９は、周知の構造及び機能を有するカメラであって、そのレンズは、携帯電話３の筐体のうち、カラーコード出力部５が設けられている面に取り付けられている。カメラ９は、他の携帯電話３のカラーコード出力部５が出力するカラーコードを撮影し、その画像を取得することができる。 The camera 9 is a camera having a known structure and function, and its lens is attached to the surface of the casing of the mobile phone 3 where the color code output unit 5 is provided. The camera 9 can capture the color code output by the color code output unit 5 of another mobile phone 3 and acquire the image.
　操作部１１は、周知の携帯電話が備える操作ボタンであり、携帯電話３に対するユーザの指示を入力することができる。その指示には、後述するカラーコード通信を開始する指示や、そのカラーコード通信において出力するカラーコードの内容を設定する指示等が含まれる。ディスプレイ１３は、周知の携帯電話が備える液晶ディスプレイである。なお、携帯電話３は、上述した構成部材のほかにも、通常の携帯電話と同様の構成部材を備えるが、ここではその記載は省略する。
（２）カラーコード出力部５が出力するカラーコード
　カラーコード出力部５が出力するカラーコードを図５に示す。カラーコードには、呼び出しコード、応答コード、受信コード、通信完了コード、情報コードの５種類があり、それぞれにおいて、図５に示すように、各セル（光照射部５－１～５－９）が照射する光の色が予め定められている。なお、図５において、Ｒは赤を意味し、Ｇは緑を意味し、Ｂは青を意味する。 The operation unit 11 is an operation button provided in a known mobile phone, and can input a user instruction to the mobile phone 3. The instructions include an instruction to start color code communication, which will be described later, an instruction to set the content of the color code output in the color code communication, and the like. The display 13 is a liquid crystal display included in a known mobile phone. The mobile phone 3 includes the same constituent members as those of a normal mobile phone in addition to the above-described constituent members, but the description thereof is omitted here.
(2) Color code output by the color code output unit 5 The color code output by the color code output unit 5 is shown in FIG. There are five types of color codes: call code, response code, reception code, communication completion code, and information code. In each case, as shown in FIG. 5, each cell (light irradiation units 5-1 to 5-9) The color of the light irradiated by is predetermined. In FIG. 5, R means red, G means green, and B means blue.
　呼び出しコードは、双方向カラーコード通信システム１を構成する複数の携帯電話３のうち、情報コードを出力するもの（以下、送信側携帯電話３Ａとする）が、その情報コードを受信する携帯電話３（以下、受信側携帯電話３Ｂとする）を呼び出すためのカラーコードである。なお、携帯電話３は、カラーコードの出力、受信の両方が可能であるから、送信側携帯電話３Ａは、情報コードの受信も行うことができ、受信側携帯電話３Ｂは、情報コードの送信も行うことができる。 The calling code is a mobile phone 3 that outputs an information code (hereinafter referred to as a transmitting-side mobile phone 3A) among a plurality of mobile phones 3 constituting the bidirectional color code communication system 1, and receives the information code. This is a color code for calling (hereinafter referred to as a receiving-side mobile phone 3B). Since the mobile phone 3 can both output and receive color codes, the transmitting-side mobile phone 3A can also receive information codes, and the receiving-side mobile phone 3B can also transmit information codes. It can be carried out.
　応答コードは、呼び出しコードを受信した受信側携帯電話３Ｂが、送信側携帯電話３Ａに返すカラーコードである。
　受信コードは、情報コードを受信した受信側携帯電話３Ｂが、送信側携帯電話３Ａに返すカラーコードである。 The response code is a color code returned to the transmitting side mobile phone 3A by the receiving side mobile phone 3B that has received the calling code.
The reception code is a color code returned to the transmission side mobile phone 3A by the reception side mobile phone 3B that has received the information code.
　通信完了コードは、全ての情報コードを出力したとき、送信側携帯電話３Ａが、受信側携帯電話３Ｂに出力するカラーコードである。
　情報コードは、応答コードが受信側携帯電話３Ｂから送信側携帯電話３Ａに返された後、送信側携帯電話３Ａが出力するカラーコードであり、通信により伝達すべき内容を表すものである。情報コードには、Ｉ－１、Ｉ－２、Ｉ－３、・・・というように多数の種類があり、それぞれに、所定の伝達すべき情報（例えば、文字、単語、文章、所定の意味を持つ命令等）が割り当てられている。あるいは、複数の情報コードの組み合わせに、所定の伝達すべき情報を割り当ててもよい。
（３）双方向カラーコード通信システム１が実行するカラーコードの送受信処理
　双方向カラーコード通信システム１が実行するカラーコードの送受信処理を説明する。カラーコードの送受信を行うとき、送信側携帯電話３Ａと受信側携帯電話３Ｂとは、送信側携帯電話３Ａのカラーコード出力部５及びカメラ９と、受信側携帯電話３Ｂのカラーコード出力部５及びカメラ９とが対向するように配置される。
（３－１）まず、送信側携帯電話３Ａが、カラーコードを出力する処理を図４のフローチャートに基づいて説明する。この処理は、ユーザが送信側携帯電話３Ａの操作部１１に対して所定の操作を行ったときに実行される。また、ユーザは、カラーコードを出力する前に、操作部１１を操作して、送信側携帯電話３Ａから出力したい情報コードを予め設定しておく。出力する情報コードは単一であってもよいし、複数であってもよい。出力する情報コードが複数の場合は、ユーザの操作に応じて出力する順番が決められる。例えば、ユーザが情報コードの出力を設定した順番を、そのまま、情報コードを出力する順番とすることができる。 The communication completion code is a color code output from the transmitting mobile phone 3A to the receiving mobile phone 3B when all information codes are output.
The information code is a color code output by the transmitting mobile phone 3A after the response code is returned from the receiving mobile phone 3B to the transmitting mobile phone 3A, and represents information to be transmitted by communication. There are many types of information codes such as I-1, I-2, I-3,..., Each of which has predetermined information to be transmitted (for example, characters, words, sentences, predetermined meanings). Are assigned). Alternatively, predetermined information to be transmitted may be assigned to a combination of a plurality of information codes.
(3) Color Code Transmission / Reception Processing Performed by Bidirectional Color Code Communication System 1 Color code transmission / reception processing performed by the bidirectional color code communication system 1 will be described. When transmitting / receiving a color code, the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B include a color code output unit 5 and a camera 9 of the transmitting-side mobile phone 3A, and a color code output unit 5 of the receiving-side mobile phone 3B and It arrange | positions so that the camera 9 may oppose.
(3-1) First, the process in which the transmitting-side mobile phone 3A outputs a color code will be described with reference to the flowchart of FIG. This process is executed when the user performs a predetermined operation on the operation unit 11 of the transmission-side mobile phone 3A. In addition, before outputting the color code, the user operates the operation unit 11 to set in advance an information code to be output from the transmitting-side mobile phone 3A. The information code to be output may be single or plural. When there are a plurality of information codes to be output, the output order is determined according to the user's operation. For example, the order in which the user sets the output of the information code can be set as the order in which the information code is output as it is.
　ステップ１０では、カラーコード出力部５を用いて、呼び出しコードを出力する。なお、呼び出しコード、及びその他のカラーコードを出力するとき、カラーコード出力部５が出力する光の強度は、図６に示すように、周期Ｔで周期的に変動する。変動する光の強度の上限は、受信側携帯電話３Ｂにおいて、光の強度不足で受信できないということが生じないように、十分大きく設定される。また、変動する光の強度の下限は、受信側携帯電話３Ｂにおいて、光の強度が過大であるため受信できないということが生じないように、十分小さく設定される。 In step 10, the calling code is output using the color code output unit 5. In addition, when outputting the calling code and other color codes, the intensity of the light output from the color code output unit 5 periodically varies with a period T as shown in FIG. The upper limit of the fluctuating light intensity is set sufficiently large so that the reception-side mobile phone 3B will not be unable to receive due to insufficient light intensity. Further, the lower limit of the intensity of the fluctuating light is set to be sufficiently small so that the reception-side mobile phone 3B does not prevent reception because the light intensity is excessive.
　ステップ２０では、受信側携帯電話３Ｂにより出力された、応答コードが読み取れたか否かを判断する。応答コードは、呼び出しコードを受信したときに受信側携帯電話３Ｂが出力するカラーコードである。 In step 20, it is determined whether or not the response code output by the receiving-side mobile phone 3B has been read. The response code is a color code output by the receiving side mobile phone 3B when receiving the calling code.
　応答コードの読み取りは以下のように行われる。まず、カメラ９により、受信側携帯電話３Ｂのカラーコード出力部５から照射された光を含む範囲の画像を取り込む。そして、カメラ９は、取り込んだ画像のうち、カラーコード（応答コード）を含む領域（以下では、カラーコード領域とする）を周知の画像認識の方法で認識する。さらに、カメラ９は、カラーコード領域から、周知のカラーコードの読み取り方法（例えば特開２００８－１８１４４７号公報、特開２００８－２７０３６号公報等記載の方法）により、応答コードを読み取る。 Response code is read as follows. First, the camera 9 captures an image in a range including light emitted from the color code output unit 5 of the reception-side mobile phone 3B. And the camera 9 recognizes the area | region (henceforth a color code area | region) containing a color code (response code) among the captured images by a known image recognition method. Further, the camera 9 reads the response code from the color code area by a known color code reading method (for example, a method described in Japanese Unexamined Patent Application Publication Nos. 2008-181447 and 2008-27036).
　なお、応答コードも、呼び出しコードと同様に、その光の強度は周期Ｔで変動する（図６参照）が、上述した応答コードの読み取りは、周期Ｔの期間内に、多数回実行される。そのため、応答コードの読み取りは、応答コードにおける光の強度が上限付近のとき、下限付近のとき、中間のときに、それぞれ行われる。 Note that the response code also has a light intensity that varies in the period T (see FIG. 6), as in the case of the calling code. However, the above-described response code is read many times within the period T. Therefore, the response code is read when the light intensity in the response code is near the upper limit, near the lower limit, or in the middle.
　多数回の読み取りのうち、１回でも応答コードが読み取れればステップ３０に進み、一回も読み取れなかった場合はステップ２０に留まる。
　なお、呼び出しコードを出力してから所定時間が経過しても応答コードが読み取れない場合は本処理を終了するようにしてもよい。 If the response code can be read at least once among the many readings, the process proceeds to step 30; otherwise, the process stays at step 20.
If the response code cannot be read even after a predetermined time has elapsed after the call code is output, this processing may be terminated.
　ステップ３０では、カラーコード出力部５を用いて、情報コードを出力する。出力すべき情報コードが複数ある場合は、予め定められた順番に従い、１つの情報コードを出力する。なお、情報コードも、呼び出しコードと同様に、その強度は周期Ｔで変動する（図６参照）。 In step 30, the information code is output using the color code output unit 5. When there are a plurality of information codes to be output, one information code is output according to a predetermined order. Note that the strength of the information code also varies with the period T, as with the calling code (see FIG. 6).
　ステップ４０では、受信側携帯電話３Ｂにより出力された、受信コードが読み取れたか否かを判断する。受信コードは、直前のステップ３０で出力した情報コードを受信したときに受信側携帯電話３Ｂが出力するカラーコードである。 In step 40, it is determined whether or not the received code output by the mobile phone 3B on the receiving side has been read. The reception code is a color code that is output by the reception-side mobile phone 3B when the information code output in the immediately preceding step 30 is received.
　受信コードの読み取りは、応答コードの読み取りと同様に行われる。受信コードの読み取りも、周期Ｔの期間内に、多数回実行され、その多数回の読み取りのうち、１回でも受信コードを読み取れればステップ５０に進み、一回も読み取れなかった場合はステップ４０に留まる。 The reading of the received code is performed in the same way as reading the response code. The reading of the received code is also executed many times within the period T. If the received code can be read even once among the many times of reading, the process proceeds to step 50. If the received code cannot be read once, step 40 is executed. Stay on.
　なお、情報コードを出力してから所定時間が経過しても受信コードが読み取れない場合は本処理を終了するようにしてもよい。
　ステップ５０では、出力すべき情報コードを全て出力したか否かを判断する。全て出力した場合はステップ６０に進み、未だ出力していない情報コードが残っている場合はステップ３０に戻る。 If the received code cannot be read even after a predetermined time has elapsed since the output of the information code, this process may be terminated.
In step 50, it is determined whether or not all information codes to be output have been output. If all of the information codes have been output, the process proceeds to step 60. If any information code that has not yet been output remains, the process returns to step 30.
　ステップ６０では、通信完了コードを出力する。なお、通信完了コードも、呼び出しコードと同様に、その強度は周期Ｔで変動する（図６参照）。
（３－２）次に、受信側携帯電話３Ｂが、送信側携帯電話３Ａにより出力されたカラーコードを受信する処理を図７のフローチャートに基づいて説明する。この処理は、ユーザが受信側携帯電話３Ｂの操作部１１に対して所定の操作を行ったときに実行される。あるいは、定期的に自動実行されるようにしてもよい。 In step 60, a communication completion code is output. Note that the strength of the communication completion code also varies with the period T, as with the calling code (see FIG. 6).
(3-2) Next, a process in which the reception-side mobile phone 3B receives the color code output from the transmission-side mobile phone 3A will be described with reference to the flowchart of FIG. This process is executed when the user performs a predetermined operation on the operation unit 11 of the reception-side mobile phone 3B. Alternatively, it may be automatically executed periodically.
　ステップ１１０では、送信側携帯電話３Ａにより出力された、呼び出しコードが読み取れたか否かを判断する。なお、上述したように、呼び出しコードの強度は周期Ｔで変動する（図６参照）が、呼び出しコードの読み取りは、周期Ｔの期間内に、多数回実行され、その多数回の読み取りのうち、１回でも呼び出しコードを読み取れればステップ１２０に進み、一回も読み取れなかった場合はステップ１１０に留まる。 In step 110, it is determined whether or not the calling code output by the transmitting-side mobile phone 3A has been read. As described above, the strength of the calling code varies with the period T (see FIG. 6), but the reading of the calling code is executed a number of times within the period of the period T. If the call code can be read once, the process proceeds to step 120. If the call code is not read once, the process stays at step 110.
　なお、所定時間が経過しても呼び出しコードが読み取れない場合は本処理を終了するようにしてもよい。
　ステップ１２０では、カラーコード出力部５を用いて、応答コードを出力する。 If the calling code cannot be read even after a predetermined time has elapsed, this process may be terminated.
In step 120, the response code is output using the color code output unit 5.
　ステップ１３０では、送信側携帯電話３Ａにより出力された、情報コードが読み取れたか否かを判断する。なお、上述したように、情報コードにおける光の強度は周期Ｔで変動する（図６参照）が、情報コードの読み取りは、周期Ｔの期間内に、多数回実行され、その多数回の読み取りのうち、１回でも情報コードを読み取れればステップ１４０に進み、一回も読み取れなかった場合はステップ１３０に留まる。 In step 130, it is determined whether or not the information code output by the transmitting mobile phone 3A has been read. As described above, the intensity of light in the information code varies with the period T (see FIG. 6), but the information code is read many times within the period T, If the information code can be read even once, the process proceeds to step 140. If the information code cannot be read once, the process stays at step 130.
　なお、応答コードを出力してから所定時間が経過しても情報コードが読み取れない場合は本処理を終了するようにしてもよい。
　ステップ１４０では、カラーコード出力部５を用いて、受信コードを出力する。 If the information code cannot be read even after a predetermined time has elapsed since the response code was output, this process may be terminated.
In step 140, the color code output unit 5 is used to output the received code.
　ステップ１５０では、送信側携帯電話３Ａにより出力された、通信完了コードが読み取れたか否かを判断する。なお、上述したように、通信完了コードにおける光の強度は周期Ｔで変動する（図６参照）が、通信完了コードの読み取りは、周期Ｔの期間内に、多数回実行され、その多数回の読み取りのうち、１回でも通信完了コードを読み取れれば本処理を終了し、一回も読み取れなかった場合はステップ１３０に戻る。
（４）双方向カラーコード通信システム１が奏する効果
(i)双方向カラーコード通信システム１は、カラーコードを送受信することにより通信を行う。カラーコードは大容量の情報を含むことができるから、これを用いることにより、通信速度が高くなる。
(ii)カラーコードを出力するとき、その光の強度は周期Ｔで変動する。そして、カラーコードを読み取るとき、周期Ｔの期間内に、多数回読み取りが実行される。そのため、カラーコードの読み取りは、カラーコードにおける光の強度が上限付近のとき、下限付近のとき、中間のときに、それぞれ行われる。その結果、光の強度が過大又は過小であるため読み取れないというようなことがなく、カラーコードを確実に読み取ることができる。
(iii)カラーコードは、指向性の高いＬＥＤ素子の光により構成される。そのため、カラーコードは遠距離にまで到達するので、それぞれの携帯電話３間の距離が大きい場合でも通信を行うことができる。また、指向性の高いＬＥＤ素子の光は周囲に拡散しないので、通信内容を傍受されにくい。
(iv)カラーコードの光は肉眼で見ることができるので、携帯電話３のユーザは、その時通信が行われているか否かを容易に知ることができる。
（５）変形例
　双方向カラーコード通信システム１は、上述した機能に加えて、さらに、以下の機能を備えていてもよい。送信側携帯電話３Ａは、呼び出しコードを出力しても、所定時間内に応答コードが返ってこない場合、図８のフローチャートに示す処理を実行する。 In step 150, it is determined whether or not the communication completion code output by the transmitting-side mobile phone 3A has been read. As described above, the light intensity in the communication completion code varies with the period T (see FIG. 6), but the communication completion code is read many times within the period T, If the communication completion code can be read even once, the process is terminated. If the communication completion code is not read once, the process returns to step 130.
(4) Effects produced by the bidirectional color code communication system 1
(i) The bidirectional color code communication system 1 performs communication by transmitting and receiving color codes. Since the color code can contain a large amount of information, using this increases the communication speed.
(ii) When outputting a color code, the intensity of the light fluctuates with a period T. Then, when reading the color code, the reading is executed many times within the period T. Therefore, the color code is read when the light intensity in the color code is near the upper limit, near the lower limit, or in the middle. As a result, the color code can be reliably read without being unable to be read because the light intensity is too large or too small.
(iii) The color code is composed of light from a highly directional LED element. Therefore, since the color code reaches a long distance, communication can be performed even when the distance between the respective mobile phones 3 is large. Moreover, since the light of the LED element with high directivity does not diffuse around, it is difficult to intercept the communication content.
(iv) Since the light of the color code can be seen with the naked eye, the user of the mobile phone 3 can easily know whether or not communication is being performed at that time.
(5) Modified Example The bidirectional color code communication system 1 may further include the following functions in addition to the functions described above. If the response code is not returned within a predetermined time even when the calling mobile phone 3A outputs the calling code, the transmitting mobile phone 3A executes the processing shown in the flowchart of FIG.
　ステップ２１０では、呼び出しコードＸ1を出力する。この呼び出しコードＸ1は、通常の呼び出しコードとは異なり、使用する色の範囲が特定の範囲（例えば、赤と緑）に制限された呼び出しコードである。 In step 210, it outputs the calling code X 1. This call code X 1 is a call code in which the color range to be used is limited to a specific range (for example, red and green) unlike a normal call code.
　ステップ２２０では、呼び出しコードＸ1の出力から所定時間内に、受信側携帯電話３Ｂにより出力された、応答コードＹ1が読み取れたか否かを判断する。応答コードＹ1は、呼び出しコードＸ1を受信したときに受信側携帯電話３Ｂが出力するカラーコードである。応答コードＹ1は、呼び出しコードＸ1と同様に、使用する色の範囲が特定の範囲（例えば、赤と緑）に制限されている。応答コードＹ1を読み取れなかった場合はステップ２３０に進み、応答コードＹ1を読み取れた場合はステップ２８０に進む。 In step 220, within a predetermined time from the output of the calling code X 1, output by the recipient mobile phone 3B, it determines whether the response code Y 1 has read. The response code Y 1 is a color code output by the receiving-side mobile phone 3B when the call code X 1 is received. In the response code Y 1 , the color range to be used is limited to a specific range (for example, red and green), like the call code X 1 . If the response code Y 1 cannot be read, the process proceeds to step 230. If the response code Y 1 can be read, the process proceeds to step 280.
　ステップ２３０では、呼び出しコードＸ2を出力する。この呼び出しコードＸ2は、使用する色の範囲が、呼び出しコードＸ1とは異なる特定の範囲（例えば、緑と青）に制限された呼び出しコードである。 In step 230, it outputs the calling code X 2. The call code X 2 is a call code in which the color range to be used is limited to a specific range (for example, green and blue) different from the call code X 1 .
　ステップ２４０では、呼び出しコードＸ2の出力から所定時間内に、受信側携帯電話３Ｂにより出力された、応答コードＹ2が読み取れたか否かを判断する。応答コードＹ2は、呼び出しコードＸ2を受信したときに受信側携帯電話３Ｂが出力するカラーコードである。応答コードＹ2は、呼び出しコードＸ2と同様に、使用する色の範囲が特定の範囲（例えば、緑と青）に制限されている。応答コードＹ2を読み取れなかった場合はステップ２５０に進み、応答コードＹ2を読み取れた場合はステップ２９０に進む。 In step 240, within a predetermined time from the output of the calling code X 2, output by the recipient mobile phone 3B, it determines whether the response code Y 2 has read. The response code Y 2 is a color code output by the receiving-side mobile phone 3B when the call code X 2 is received. In the response code Y 2 , the color range to be used is limited to a specific range (for example, green and blue) in the same manner as the call code X 2 . If the response code Y 2 cannot be read, the process proceeds to step 250. If the response code Y 2 can be read, the process proceeds to step 290.
　ステップ２５０では、呼び出しコードＸ3を出力する。この呼び出しコードＸ3は、使用する色の範囲が、呼び出しコードＸ1、Ｘ2とは異なる特定の範囲（例えば、赤と青）に制限された呼び出しコードである。 In step 250, it outputs the calling code X 3. The call code X 3 is a call code in which the color range to be used is limited to a specific range (for example, red and blue) different from the call codes X 1 and X 2 .
　ステップ２６０では、呼び出しコードＸ3の出力から所定時間内に、受信側携帯電話３Ｂにより出力された、応答コードＹ3が読み取れたか否かを判断する。応答コードＹ3は、呼び出しコードＸ3を受信したときに受信側携帯電話３Ｂが出力するカラーコードである。応答コードＹ3は、呼び出しコードＸ3と同様に、使用する色の範囲が特定の範囲（例えば、赤と青）に制限されている。応答コードＹ3を読み取れなかった場合はステップ２７０に進み、応答コードＹ3を読み取れた場合はステップ３００に進む。 In step 260, within a predetermined time from the output of the calling code X 3, output by the recipient mobile phone 3B, it determines whether the response code Y 3 has read. The response code Y 3 is a color code that is output from the receiving-side mobile phone 3B when the call code X 3 is received. In the response code Y 3 , the color range to be used is limited to a specific range (for example, red and blue), like the call code X 3 . If the response code Y 3 cannot be read, the process proceeds to step 270, and if the response code Y 3 can be read, the process proceeds to step 300.
　ステップ２７０では、ディスプレイ１３に通信不能表示を行う。
　一方、前記ステップ２２０で応答コードＹ1を読み取れた場合はステップ２８０に進み、通信に使うカラーコードを、色の範囲が呼び出しコードＸ1及び応答コードＹ1における色の範囲であるものに限定する。 In step 270, a communication disabled display is performed on the display 13.
On the other hand, if the response code Y 1 can be read in step 220, the process proceeds to step 280, and the color code used for communication is limited to that whose color range is the color range in the call code X 1 and the response code Y 1 . .
　また、前記ステップ２４０で応答コードＹ2を読み取れた場合はステップ２９０に進み、通信に使うカラーコードを、色の範囲が呼び出しコードＸ2及び応答コードＹ2における色の範囲であるものに限定する。 If the response code Y 2 can be read in step 240, the process proceeds to step 290, where the color code used for communication is limited to that whose color range is the color range of the call code X 2 and the response code Y 2 . .
　また、前記ステップ２６０で応答コードＹ3を読み取れた場合はステップ３００に進み、通信に使うカラーコードを、色の範囲が呼び出しコードＸ3及び応答コードＹ3における色の範囲であるものに限定する。 Further, when the read response code Y 3 in the step 260 proceeds to step 300, a color code that is used to communicate, the color range is limited to the range of colors in the calling code X 3 and response codes Y 3 .
　上記の処理を行うことにより、以下の効果が得られる。送信側携帯電話３Ａと受信側携帯電話３Ｂが存在する場所の環境（周囲の光の色や強さ、空気の透明度等）により、カラーコードに使用される一部の色は、受信側携帯電話３Ｂで認識し難いことがある。上記の処理では、使用する色の範囲が異なる呼び出しコードＸ1～Ｘ3のうち、応答コードが帰ってきたもの（すなわち、受信側携帯電話３Ｂで正常に読み取れたもの）を選択し、その応答コードで使用している色の範囲を、通信で使用するカラーコードの色の範囲とする。そのことにより、通信で使用するカラーコードの色は、相手側の携帯電話３で読み取れる色に限定されるから、確実にカラーコード通信を行うことができる。 By performing the above processing, the following effects can be obtained. Depending on the environment (color and intensity of ambient light, transparency of air, etc.) where the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B exist, some colors used for the color code may vary depending on the environment. It may be difficult to recognize with 3B. In the above processing, among the call codes X 1 to X 3 having different color ranges to be used, the one that has returned the response code (that is, the code that can be read normally by the receiving mobile phone 3B) is selected and the response The color range used in the code is the color range of the color code used in communication. As a result, the color of the color code used for communication is limited to a color that can be read by the mobile phone 3 on the other side, so that color code communication can be reliably performed.
　２．第２の実施形態
（１）カラーコード施錠／開錠システム１０１の構成
　まず、カラーコード施錠／開錠システム１０１の構成を説明する。カラーコード施錠／開錠システム１０１は、図９に示すように、携帯電話（カラーコード出力装置、カラーコード通信装置）３と、施錠／開錠装置１０３とから構成される。施錠／開錠装置１０３は、建物や乗り物におけるドア（図示略）付近に取り付けられ、そのドアの施錠及び開錠を行う装置である。 2. Second Embodiment (1) Configuration of Color Code Locking / Unlocking System 101 First, the configuration of the color code locking / unlocking system 101 will be described. As shown in FIG. 9, the color code locking / unlocking system 101 includes a mobile phone (color code output device, color code communication device) 3 and a locking / unlocking device 103. The locking / unlocking device 103 is a device that is attached near a door (not shown) in a building or vehicle and locks and unlocks the door.
　携帯電話３は、前記第１の実施形態における携帯電話３と基本的には同様であるが、さらに、その制御部７（図１参照）に、後述する施錠／開錠コードの更新処理に用いる、周知の乱数発生部を備えている。 The cellular phone 3 is basically the same as the cellular phone 3 in the first embodiment, but is further used in the control unit 7 (see FIG. 1) for the lock / unlock code update process described later. And a known random number generator.
　施錠／開錠装置１０３は、９つの光照射部１０５－１～１０５－９を備えており、光照射部１０５－１～１０５－９を総称してカラーコード出力部１０５とする。また、施錠／開錠装置１０３は、制御部１０７、カメラ１０９、及び施錠／開錠部（施錠／開錠部）１１１を備えている。 The locking / unlocking device 103 includes nine light irradiation units 105-1 to 105-9, and the light irradiation units 105-1 to 105-9 are collectively referred to as a color code output unit 105. The locking / unlocking device 103 includes a control unit 107, a camera 109, and a locking / unlocking unit (locking / unlocking unit) 111.
　カラーコード出力部１０５、カメラ１０９は、それぞれ、前記第１の実施形態における携帯電話３のカラーコード出力部５、カメラ９と同様のものである。カラーコード出力部１０５とカメラ１０９のレンズとは、施錠／開錠装置１０３の筐体（図示略）における同一の平面に取り付けられている。 The color code output unit 105 and the camera 109 are the same as the color code output unit 5 and the camera 9 of the mobile phone 3 in the first embodiment, respectively. The color code output unit 105 and the lens of the camera 109 are attached to the same plane in a housing (not shown) of the locking / unlocking device 103.
　制御部１０７は、ＣＰＵ、ＲＯＭ、ＲＡＭ等を備える周知のコンピュータであり、施錠／開錠装置１０３の各部を制御する。その制御には、前記第１の実施形態における携帯電話３と同様に、カラーコード出力部１０５を用いてカラーコードを出力する処理、及びカメラ１０９を用いて携帯電話３が出力したカラーコードを受信する処理が含まれる。また、制御部１０７は、後述する処理を実行する。さらに、制御部１０７は、後述する施錠／開錠コードを、書き換え可能な記憶素子に記憶している。 The control unit 107 is a known computer including a CPU, a ROM, a RAM, and the like, and controls each unit of the locking / unlocking device 103. For the control, similar to the mobile phone 3 in the first embodiment, a process of outputting a color code using the color code output unit 105 and a color code output from the mobile phone 3 using the camera 109 are received. Processing is included. In addition, the control unit 107 executes processing to be described later. Furthermore, the control unit 107 stores a lock / unlock code, which will be described later, in a rewritable storage element.
　施錠／開錠部１１１は、制御部１０７の指示により、上述したドアの施錠又は開錠を実行する。
（２）カラーコード施錠／開錠システム１０１が実行する処理
　カラーコード施錠／開錠システム１０１が実行する処理を説明する。
（２－１）まず、携帯電話３と施錠／開錠装置１０３との間で行われる通信処理について説明する。携帯電話３と施錠／開錠装置１０３とは、前記第１の実施形態における送信側携帯電話３Ａと受信側携帯電話３Ｂとの通信と同様にして、カラーコード通信を行うことができる。すなわち、本実施形態では、携帯電話３が前記第１の実施形態における送信側携帯電話３Ａとして機能し、施錠／開錠装置１０３が、前記第１の実施形態における受信側携帯電話３Ｂとして機能する。このカラーコード通信において、携帯電話３のカラーコード出力部５が出力したカラーコードを、施錠／開錠装置１０３はカメラ１０９を用いて受信し、また、施錠／開錠装置１０３のカラーコード出力部１０５が出力したカラーコードを、携帯電話３がカメラ９を用いて受信する。 The locking / unlocking unit 111 executes the above-described locking or unlocking of the door according to an instruction from the control unit 107.
(2) Processing Performed by Color Code Locking / Unlocking System 101 Processing performed by the color code locking / unlocking system 101 will be described.
(2-1) First, communication processing performed between the mobile phone 3 and the locking / unlocking device 103 will be described. The mobile phone 3 and the locking / unlocking device 103 can perform color code communication in the same manner as the communication between the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B in the first embodiment. That is, in this embodiment, the mobile phone 3 functions as the transmitting-side mobile phone 3A in the first embodiment, and the locking / unlocking device 103 functions as the receiving-side mobile phone 3B in the first embodiment. . In this color code communication, the locking / unlocking device 103 receives the color code output from the color code output unit 5 of the mobile phone 3 using the camera 109, and the color code output unit of the locking / unlocking device 103. The mobile phone 3 receives the color code output from 105 using the camera 9.
　携帯電話３は、上記のカラーコード通信により、情報コードの一種である施錠／開錠コード（設定カラーコード）を出力することができ、施錠／開錠装置１０３はその施錠／開錠コードを受信することができる。この施錠／開錠コードは、鍵の施錠又は開錠を指示するカラーコードである。 The mobile phone 3 can output a locking / unlocking code (setting color code) which is a kind of information code by the color code communication described above, and the locking / unlocking device 103 receives the locking / unlocking code. can do. This locking / unlocking code is a color code that instructs locking or unlocking of a key.
　また、携帯電話３は、上記のカラーコード通信により、情報コードの一種である変更コードを出力することができ、施錠／開錠装置１０３はその変更コードを受信することができる。この変更コードは、施錠／開錠装置１０３に設定されている施錠／開錠コードを変更することを指示するカラーコードである。 Also, the mobile phone 3 can output a change code, which is a kind of information code, by the color code communication described above, and the locking / unlocking device 103 can receive the change code. This change code is a color code instructing to change the lock / unlock code set in the lock / unlock device 103.
　なお、ユーザは、ドアの施錠又は開錠を行う場合は、携帯電話３により、施錠／開錠コードを出力する。また、ユーザは、施錠／開錠コードの更新を行う場合は、携帯電話３により、更新コードと、後述する方法で更新した後の施錠／開錠コードとの両方を出力する。
（２－２）次に、施錠／開錠コード又は変更コードを受信したときに施錠／開錠装置１０３が実行する処理を図１０のフローチャートに基づいて説明する。 Note that the user outputs a locking / unlocking code from the mobile phone 3 when locking or unlocking the door. In addition, when updating the locking / unlocking code, the user outputs both the update code and the locking / unlocking code after being updated by a method described later, using the mobile phone 3.
(2-2) Next, the processing executed by the locking / unlocking device 103 when a locking / unlocking code or change code is received will be described with reference to the flowchart of FIG.
　ステップ３１０では、受信したカラーコード（情報コード）に、変更コードと施錠／開錠コードとの両方を含むか否かを判断する。変更コードと施錠／開錠コードとの両方を含む場合はステップ３２０に進み、変更コードと施錠／開錠コードのうちの一方でも含まない場合はステップ３３０に進む。 In step 310, it is determined whether or not the received color code (information code) includes both the change code and the lock / unlock code. If both the change code and the lock / unlock code are included, the process proceeds to step 320. If neither the change code nor the lock / unlock code is included, the process proceeds to step 330.
　ステップ３２０では、施錠／開錠装置１０３の制御部１０７において、前記ステップ３１０で受信した施錠／開錠コードを、従来の施錠／開錠コードに上書きする。なお、これ以降は、後述するステップ３３０、３４０において、上書きした施錠／開錠コードを用いるようにする。施錠／開錠コードの変更後、本処理を終了する。 In step 320, the control unit 107 of the locking / unlocking device 103 overwrites the conventional locking / unlocking code with the locking / unlocking code received in step 310. After that, the overwritten locking / unlocking code is used in steps 330 and 340 described later. After changing the lock / unlock code, this process is terminated.
　一方、前記ステップ３１０で、変更コードと施錠／開錠コードのうちの一方でも含まないと判断された場合はステップ３３０に進み、受信したカラーコード（情報コード）に、施錠／開錠装置１０３の制御部１０７に記憶された施錠／開錠コードと同じ施錠／開錠コードが含まれるか否かを判断する。その施錠／開錠コードが含まれる場合はステップ３４０に進み、含まれない場合は本処理を終了する。 On the other hand, if it is determined in step 310 that either one of the change code and the lock / unlock code is not included, the process proceeds to step 330, and the received color code (information code) is added to the lock / unlock device 103. It is determined whether or not the same locking / unlocking code as the locking / unlocking code stored in the control unit 107 is included. If the lock / unlock code is included, the process proceeds to step 340. If not included, the process ends.
　ステップ３４０では、施錠／開錠部１１１を用いて、ドアの施錠又は開錠を行う。すなわち、ドアが開錠された状態であったときは施錠を行い、ドアが施錠された状態であったときは開錠を行う。
（２－３）次に、携帯電話３において施錠／開錠コードを更新する処理を図１１のフローチャートに基づいて説明する。この処理は、ユーザが携帯電話３の操作部１１に対して所定の操作を行ったときに実行される。 In step 340, the door is locked or unlocked using the locking / unlocking unit 111. That is, locking is performed when the door is unlocked, and unlocking is performed when the door is locked.
(2-3) Next, the process of updating the lock / unlock code in the mobile phone 3 will be described based on the flowchart of FIG. This process is executed when the user performs a predetermined operation on the operation unit 11 of the mobile phone 3.
　ステップ４１０では、携帯電話３の制御部７が備える乱数発生部により、９つの乱数を発生させる。
　ステップ４２０では、その９つの乱数により、光照射部５－１～５－９の光の色をそれぞれランダムに設定する。すなわち、制御部７は、乱数と光の色との関係を規定したマップを備えており、光照射部５－１～５－９のそれぞれについて、発生した乱数にマップ上で対応する光の色を設定する。そのように光照射部５－１～５－９の光の色を設定したカラーコードを、更新後の施錠／開錠コードとして、携帯電話３の制御部７に記憶する。これ以降は、施錠／開錠装置１０３に出力する施錠／開錠コードとして、更新後のものを使用する。 In step 410, nine random numbers are generated by the random number generator included in the control unit 7 of the mobile phone 3.
In step 420, the light colors of the light irradiators 5-1 to 5-9 are set randomly based on the nine random numbers. That is, the control unit 7 is provided with a map that defines the relationship between the random number and the color of light, and the light color corresponding to the generated random number on the map for each of the light irradiation units 5-1 to 5-9. Set. The color code in which the light colors of the light irradiation units 5-1 to 5-9 are set as described above is stored in the control unit 7 of the mobile phone 3 as the updated locking / unlocking code. Thereafter, the updated code is used as the lock / unlock code to be output to the lock / unlock device 103.
　ステップ４３０では、上述した方法で施錠／開錠装置１０３との間のカラーコード通信を行い、更新コードと、更新後の施錠／開錠コードとを出力する。なお、施錠／開錠装置１０３では、前記ステップ３１０、３２０で述べたように、受信した施錠／開錠コードを、従来の施錠／開錠コードに上書きし、それ以降は、前記ステップ３３０、３４０の処理において、上書きした施錠／開錠コードを用いるようにする。 In step 430, color code communication is performed with the locking / unlocking device 103 by the above-described method, and the update code and the updated locking / unlocking code are output. The locking / unlocking device 103 overwrites the received locking / unlocking code with the conventional locking / unlocking code as described in steps 310 and 320, and thereafter, the steps 330 and 340 are performed. In this process, the overwritten lock / unlock code is used.
　なお、上記の処理は、所定時間おきに自動的に実行するようにしてもよい。また、乱数は、携帯電話３の乱数発生部で発生させるのではなく、外部から取得するようにしてもよい。
（３）カラーコード施錠／開錠システム１０１が奏する効果
(i) カラーコード施錠／開錠システム１０１では、携帯電話３により、カラーコードである施錠／開錠コードを送信し、施錠／開錠装置１０３がその施錠／開錠コードを受信し、正しい施錠／開錠コードであると判断した場合に施錠／開錠を行う。カラーコードは大容量の情報を含むことができるから、これを用いることにより、不正な開錠が困難になり、安全性が高まる。
(ii) カラーコードである施錠／開錠コードは、指向性の高いＬＥＤ素子の光により構成される。そのため、施錠／開錠コードは必要な方向のみに送られ、周囲に広がらないので、傍受されにくい。その結果、安全性が高まる。
(iii) カラーコードである施錠／開錠コードの光は肉眼で見ることができるので、ユーザは、その時施錠／開錠の処理が行われているか否かを容易に知ることができる。
(iv) カラーコード施錠／開錠システム１０１では、施錠／開錠コードを容易に更新することができる。そのことにより、不正な開錠が一層困難になり、安全性がより高まる。 Note that the above processing may be automatically executed every predetermined time. Further, the random number may be acquired from the outside instead of being generated by the random number generator of the mobile phone 3.
(3) Effects of the color code locking / unlocking system 101
(i) In the color code locking / unlocking system 101, the mobile phone 3 transmits the locking / unlocking code which is a color code, and the locking / unlocking device 103 receives the locking / unlocking code, and correct locking / Lock / unlock when it is determined that the code is unlocked. Since the color code can contain a large amount of information, the use of this makes it difficult to illegally unlock and increases safety.
(ii) The locking / unlocking code, which is a color code, is composed of light from a highly directional LED element. Therefore, the locking / unlocking code is sent only in the necessary direction and does not spread around, so that it is difficult to intercept. As a result, safety is increased.
(iii) Since the light of the locking / unlocking code as the color code can be seen with the naked eye, the user can easily know whether the locking / unlocking process is being performed at that time.
(iv) In the color code locking / unlocking system 101, the locking / unlocking code can be easily updated. As a result, unauthorized unlocking becomes more difficult and safety is further increased.
　３．第３の実施形態
　本実施形態における双方向カラーコード通信システムの構成を、図１２に基づいて説明する。 3. Third Embodiment A configuration of a bidirectional color code communication system according to the present embodiment will be described with reference to FIG.
　本実施形態における双方向カラーコード通信システムは、複数の車両（カラーコード出力装置、カラーコード通信装置）２０１により構成される。複数の車両２０１は、それぞれ、前記第１の実施形態における携帯電話３と基本的に同様のカラーコード出力部５、制御部７、カメラ９、操作部１１、及びディスプレイ１３（図１参照）を備えている。ただし、車両２０１は、カラーコード出力部５をその前端と後端との両方に備えており、また、車両２０１は、カメラ９をその前端と後端との両方に備えている。前端に備えられたカラーコード出力部５は、車両２０１の前方に向けてカラーコードを出力することができ、後端に備えられたカラーコード出力部５は、車両２０１の後方に向けてカラーコードを出力することができる。また、前端に備えられたカメラ９は、前方から自車両に向けて出力されたカラーコードを撮影することができ、後端に備えられたカメラ９は、後方から自車両に向けて出力されたカラーコードを撮影することができる。 The bidirectional color code communication system in the present embodiment includes a plurality of vehicles (color code output device, color code communication device) 201. Each of the plurality of vehicles 201 includes a color code output unit 5, a control unit 7, a camera 9, an operation unit 11, and a display 13 (see FIG. 1) that are basically the same as those of the mobile phone 3 in the first embodiment. I have. However, the vehicle 201 includes the color code output unit 5 at both the front end and the rear end, and the vehicle 201 includes the camera 9 at both the front end and the rear end. The color code output unit 5 provided at the front end can output the color code toward the front of the vehicle 201, and the color code output unit 5 provided at the rear end can output the color code toward the rear of the vehicle 201. Can be output. Further, the camera 9 provided at the front end can photograph the color code output from the front toward the host vehicle, and the camera 9 provided at the rear end is output from the rear toward the host vehicle. Color code can be taken.
　なお、車両２０１の前端に備えられたカラーコード出力部５は、ヘッドライトであってもよいし、ヘッドライトとは別に設けられたものであってもよい。また、車両２０１の後端に備えられたカラーコード出力部５は、テールランプであってもよいし、テールランプとは別に設けられたものであってもよい。 Note that the color code output unit 5 provided at the front end of the vehicle 201 may be a headlight or may be provided separately from the headlight. Further, the color code output unit 5 provided at the rear end of the vehicle 201 may be a tail lamp or may be provided separately from the tail lamp.
　また、車両２０１は、車室内のインパネ（図示略）内に操作部１１、及びディスプレイ１３を備えている。
　２台の車両２０１は、それらが前後に連なっている状態において、前記第１の実施形態における送信側携帯電話３Ａと受信側携帯電話３Ｂとの通信と同様にして、カラーコード通信を行うことができる。すなわち、後方の車両２０１の前端に備えられたカラーコード出力部５で出力したカラーコードを、前方の車両２０１の後端に備えられたカメラ９で撮影し、また、前方の車両２０１の後端に備えられたカラーコード出力部５で出力したカラーコードを、後方の車両２０１の前端に備えられたカメラ９で撮影して、双方向のカラーコード通信を行うことができる。 In addition, the vehicle 201 includes an operation unit 11 and a display 13 in an instrument panel (not shown) in the passenger compartment.
The two vehicles 201 can perform color code communication in the same manner as the communication between the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B in the first embodiment in a state where they are connected in the front-rear direction. it can. That is, the color code output from the color code output unit 5 provided at the front end of the rear vehicle 201 is photographed by the camera 9 provided at the rear end of the front vehicle 201, and the rear end of the front vehicle 201 is captured. The color code output from the color code output unit 5 provided in the above can be photographed by the camera 9 provided at the front end of the rear vehicle 201 to perform two-way color code communication.
　本実施形態においても、前記第１の実施形態と同様の効果を奏することができる。
　４．第４の実施形態
　本実施形態における双方向カラーコード通信システムの構成を、図１３に基づいて説明する。 Also in the present embodiment, the same effects as in the first embodiment can be obtained.
4). Fourth Embodiment A configuration of a bidirectional color code communication system according to the present embodiment will be described with reference to FIG.
　本実施形態における双方向カラーコード通信システムは、灯台（カラーコード出力装置、カラーコード通信装置）３０１と、船舶（カラーコード出力装置、カラーコード通信装置）３０３とから構成される。灯台３０１および船舶３０３は、それぞれ、前記第１の実施形態における携帯電話３と基本的に同様のカラーコード出力部５、制御部７、カメラ９、操作部１１、及びディスプレイ１３（図１参照）を備えている。ただし、灯台３０１は、カラーコード出力部５及びカメラ９をその上端付近に備えており、それらの上下左右方向の角度を変更可能に構成されている。また、船舶３０３は、カラーコード出力部５及びカメラ９をその中央ブリッジの上端付近に備えており、それらの上下左右方向の角度を変更可能に構成されている。また、灯台３０１は、操作部１１、及びディスプレイ１３を、灯台内の操作室（図示略）に備えており、船舶３０３は、操作部１１、及びディスプレイ１３を、その操縦室（図示略）に備えている。 The bidirectional color code communication system according to the present embodiment includes a lighthouse (color code output device, color code communication device) 301 and a ship (color code output device, color code communication device) 303. The lighthouse 301 and the ship 303 are respectively the same color code output unit 5, control unit 7, camera 9, operation unit 11 and display 13 as the mobile phone 3 in the first embodiment (see FIG. 1). It has. However, the lighthouse 301 includes the color code output unit 5 and the camera 9 in the vicinity of the upper end thereof, and is configured to be able to change the angles in the vertical and horizontal directions. The ship 303 includes the color code output unit 5 and the camera 9 in the vicinity of the upper end of the central bridge, and is configured to be able to change the angles in the vertical and horizontal directions. The lighthouse 301 includes the operation unit 11 and the display 13 in an operation room (not shown) in the lighthouse. The ship 303 includes the operation unit 11 and the display 13 in the cockpit (not shown). I have.
　灯台３０１と船舶３０３とは、前記第１の実施形態における送信側携帯電話３Ａと受信側携帯電話３Ｂとの通信と同様にして、カラーコード通信を行うことができる。すなわち、灯台３０１と船舶３０３のうちの一方に備えられたカラーコード出力部５で出力したカラーコードを、灯台３０１と船舶３０３のうちの他方に備えられたカメラ９で撮影して、双方向のカラーコード通信を行うことができる。 The lighthouse 301 and the ship 303 can perform color code communication in the same manner as the communication between the transmitting-side mobile phone 3A and the receiving-side mobile phone 3B in the first embodiment. That is, the color code output by the color code output unit 5 provided in one of the lighthouse 301 and the ship 303 is photographed by the camera 9 provided in the other of the lighthouse 301 and the ship 303, and is interactively displayed. Color code communication can be performed.
　本実施形態においても、前記第１の実施形態と同様の効果を奏することができる。
　尚、本発明は前記実施の形態になんら限定されるものではなく、本発明を逸脱しない範囲において種々の態様で実施しうることはいうまでもない。 Also in the present embodiment, the same effects as in the first embodiment can be obtained.
In addition, this invention is not limited to the said embodiment at all, and it cannot be overemphasized that it can implement with a various aspect in the range which does not deviate from this invention.
　例えば、カラーコード出力部５において、光照射部５－１～５－９の配置パターンは、図３に示すものに限定されず、任意のパターンで配置することができる。例えば、光照射部５－１～５－９を縦又は横方向の１直線上に配置することができる。また、同心円上に配置することもできる。 For example, in the color code output unit 5, the arrangement pattern of the light irradiation units 5-1 to 5-9 is not limited to that shown in FIG. 3, and can be arranged in an arbitrary pattern. For example, the light irradiation units 5-1 to 5-9 can be arranged on one straight line in the vertical or horizontal direction. Moreover, it can also arrange | position on a concentric circle.
　また、カラーコード出力部５が備える光照射部の数（カラーコードを構成するセルの数）は９に限定されず、任意の数（例えば、４、５、６、７、８、１０、１６、２５、３６・・・）とすることができる。 In addition, the number of light irradiation units (the number of cells constituting the color code) provided in the color code output unit 5 is not limited to 9, and any number (for example, 4, 5, 6, 7, 8, 10, 16). 25, 36...
　また、カラーコードの各セルの色は、Ｒ、Ｇ、Ｂには限定されず、任意の色（無彩色を含む）とすることができる。任意の色は、赤色ＬＥＤ素子１５、緑色ＬＥＤ素子１７、及び青色ＬＥＤ素子１９の光の強さの比率を調整することで実現できる。また、カラーコードにおける一部のセルは、光が点灯していない状態であってもよい。 Further, the color of each cell of the color code is not limited to R, G, and B, and can be any color (including an achromatic color). Arbitrary colors can be realized by adjusting the ratio of the light intensity of the red LED element 15, the green LED element 17, and the blue LED element 19. Further, some cells in the color code may be in a state where light is not lit.
　また、前記第１及び第２の実施形態において、携帯電話３のディスプレイ１３をカラーコード出力部としてもよい。すなわち、ディスプレイ１３の画面に、複数の領域を設定し、それぞれの領域から所定の色の光を照射することで、カラーコードを出力することができる。この場合、ディスプレイ１３に設定された各領域がカラーコードを構成するセルとなる。ディスプレイ１３におけるセルの配置パターンは、図３に示すようなｍ×ｎ（ｍ、ｎは任意の整数）のマトリックスでもよいし、縦又は横方向の１直線上の配置でもよいし、同心円上の配置でもよい。なお、ディスプレイ１３の制御は、前記第１の実施形態におけるカラーコード出力部５の制御と同様に行うことができる。 In the first and second embodiments, the display 13 of the mobile phone 3 may be a color code output unit. That is, a color code can be output by setting a plurality of areas on the screen of the display 13 and irradiating light of a predetermined color from each area. In this case, each area set on the display 13 becomes a cell constituting a color code. The cell arrangement pattern in the display 13 may be a matrix of m × n (m and n are arbitrary integers) as shown in FIG. 3, may be arranged on a straight line in the vertical or horizontal direction, or may be on concentric circles. Arrangement is also acceptable. The display 13 can be controlled in the same manner as the control of the color code output unit 5 in the first embodiment.
　また、前記第２の実施形態のカラーコード施錠／開錠システム１０１は、ドア等の施錠／開錠だけではなく、例えば、車両や各種装置の起動の許可／不許可の制御に用いることができる。例えば、車両等に設けられた施錠／開錠装置１０３に設定カラーコードが入力されたときのみ、車両等の起動（エンジンやモーターの起動、電源ＯＮ）を許可し、設定カラーコードが入力されないときは、車両等の起動を許可しないようにすることができる。 The color code locking / unlocking system 101 of the second embodiment can be used not only for locking / unlocking doors and the like, but also for controlling permission / non-permission of activation of vehicles and various devices, for example. . For example, only when the set color code is input to the locking / unlocking device 103 provided in the vehicle or the like, the start of the vehicle or the like (engine or motor start, power ON) is permitted, and the set color code is not input. May not allow the start of the vehicle or the like.
　また、前記第２の実施形態において、施錠はドア等が閉じたときに自動的に行われ（オートロック）、設定カラーコードの送受信によりドア等の開錠のみが実行されるようにしてもよい。 In the second embodiment, the locking may be automatically performed when the door or the like is closed (auto-lock), and only the unlocking of the door or the like may be executed by transmitting / receiving the set color code. .
　また、前記第１及び第２の実施形態において、携帯電話３の代わりに、携帯電話以外の携帯端末（例えばノートＰＣ、タブレット端末等）を用いてもよい。
　また、前記第４の実施形態において、双方向カラーコード通信システムは、空港の管制塔と、航空機とから構成されるものであってもよい。すなわち、空港の管制塔（または滑走路）と、航空機とにそれぞれ、カラーコード出力部５及びカメラ９を備え、空港の管制塔と航空機との間でカラーコード通信を行うことができる。 In the first and second embodiments, a mobile terminal other than the mobile phone (for example, a notebook PC, a tablet terminal, etc.) may be used instead of the mobile phone 3.
In the fourth embodiment, the two-way color code communication system may be composed of an airport control tower and an aircraft. That is, the airport control tower (or runway) and the aircraft are each provided with the color code output unit 5 and the camera 9, and color code communication can be performed between the airport control tower and the aircraft.
　また、双方向カラーコード通信システムは、携帯電話３と車両２０１とで構成されるものであってもよい。すなわち、携帯電話３が出力したカラーコードを車両２０１に備えられたカメラ９で撮影し、また、車両２０１から出力されたカラーコードを携帯電話３のカメラ９で撮影して、双方向のカラーコード通信を行うことができる。さらに、双方向カラーコード通信システムは、船舶同士でカラーコード通信を行うものであってもよいし、航空機同士でカラーコード通信
を行うものであってもよい。 Further, the bidirectional color code communication system may be configured by the mobile phone 3 and the vehicle 201. That is, the color code output from the mobile phone 3 is photographed by the camera 9 provided in the vehicle 201, and the color code output from the vehicle 201 is photographed by the camera 9 of the mobile phone 3 to obtain a bidirectional color code. Communication can be performed. Furthermore, the bi-directional color code communication system may perform color code communication between ships, or may perform color code communication between aircrafts.

Claims (9)

  1. 　光の色を変化させることができる光照射部が複数配列されたカラーコード出力部と、
    　前記光照射部が照射する光の色を制御する制御部と、
    　を備えることを特徴とするカラーコード出力装置。     A color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged;
    A control unit for controlling the color of light emitted by the light irradiation unit;
    A color code output device comprising:
  2. 　前記制御部は、前記光照射部が照射する光の強度を周期的に変動させることを特徴とする請求項１記載のカラーコード出力装置。 The color code output device according to claim 1, wherein the control unit periodically varies the intensity of light emitted by the light irradiation unit.
  3. 　光の色を変化させることができる光照射部が複数配列されたカラーコード出力部と、
    　前記光照射部が照射する光の色を制御する制御部と、
    　カラーコードを読み取るカラーコード読み取り部と、
    　を備えることを特徴とするカラーコード通信装置。     A color code output unit in which a plurality of light irradiation units capable of changing the color of light are arranged;
    A control unit for controlling the color of light emitted by the light irradiation unit;
    A color code reader for reading the color code;
    A color code communication device comprising:
  4. 　前記制御部は、前記光照射部が照射する光の強度を周期的に変動させることを特徴とする請求項３記載のカラーコード通信装置。 The color code communication device according to claim 3, wherein the control unit periodically varies the intensity of light emitted by the light irradiation unit.
  5. 　請求項１又は２記載のカラーコード出力装置と、
    　前記カラーコード出力装置から出力されたカラーコードを読み取るカラーコード読み取り装置と、
    　を含んで構成されるカラーコード通信システム。     A color code output device according to claim 1 or 2,
    A color code reading device for reading the color code output from the color code output device;
    A color code communication system comprising:
  6. 　複数の請求項３又は４記載のカラーコード通信装置を含んで構成される双方向カラーコード通信システム。 A bidirectional color code communication system comprising a plurality of color code communication devices according to claim 3 or 4.
  7. 　前記カラーコード通信装置は、
    　　他のカラーコード通信装置から出力されたカラーコードを前記カラーコード読み取り部により読み取った場合、前記他のカラーコード通信装置に受信信号を出力する受信信号出力部と、
    　　前記カラーコード出力部により、使用する色の範囲が異なる複数のカラーコードを出力する複数のカラーコード出力部と、
    　　前記複数のカラーコードのそれぞれに対応する前記受信信号の受信状態に基づき、前記カラーコード出力部により出力するカラーコードの色の範囲を設定する色範囲設定部と、
    　を備えることを特徴とする請求項６記載の双方向カラーコード通信システム。     The color code communication device includes:
    When a color code output from another color code communication device is read by the color code reading unit, a reception signal output unit that outputs a reception signal to the other color code communication device;
    A plurality of color code output units for outputting a plurality of color codes having different color ranges to be used by the color code output unit;
    A color range setting unit for setting a color range of a color code to be output by the color code output unit based on a reception state of the reception signal corresponding to each of the plurality of color codes;
    The bidirectional color code communication system according to claim 6, further comprising:
  8. 　請求項１又は２記載のカラーコード出力装置であって、所定の設定カラーコードを出力可能なカラーコード出力装置と、
    　前記カラーコード出力装置により出力されたカラーコードを読み取るカラーコード読み取り部、及び前記カラーコード読み取り部で読み取ったカラーコードが前記設定カラーコードである場合、施錠及び／又は開錠を行う施錠／開錠部を備えた施錠／開錠装置と、
    　を含んで構成されるカラーコード施錠／開錠システム。     The color code output device according to claim 1 or 2, wherein a color code output device capable of outputting a predetermined set color code;
    Color code reading unit for reading the color code output by the color code output device, and locking / unlocking for locking and / or unlocking when the color code read by the color code reading unit is the set color code A locking / unlocking device with a section;
    A color code locking / unlocking system comprising:
  9. 　前記カラーコード出力装置は、前記設定カラーコードを更新する更新部と、更新後の前記設定カラーコードを出力する更新後カラーコード出力部とを備え、
    　前記施錠／開錠装置は、前記更新後カラーコード出力部により出力された更新後の前記設定カラーコードを読み取り、その更新後の前記設定カラーコードを前記施錠／開錠部にて用いる前記設定カラーコードとすることを特徴とする請求項８記載のカラーコード施錠／開錠システム。     The color code output device includes an update unit that updates the set color code, and an updated color code output unit that outputs the updated set color code.
    The locking / unlocking device reads the updated setting color code output from the updated color code output unit, and uses the updated setting color code in the locking / unlocking unit. The color code locking / unlocking system according to claim 8, wherein the color code locking / unlocking system is a cord.
PCT/JP2012/050368 2011-01-13 2012-01-11 Color code output device, color code communication device, and color code communication system WO2012096301A1 (en)

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