JP4931984B2 - Visually impaired person guidance system - Google Patents

Description

  The present invention relates to a visually handicapped person guidance system, and more particularly to a visually handicapped person guidance system that can guide a visually handicapped person safely and appropriately without making the environment feel uncomfortable.

  Conventionally, as a visually impaired person guidance system for safely guiding visually impaired persons and the like, those disclosed in Patent Literature 1, Patent Literature 2, and Patent Literature 3 are known.

  Here, in Patent Document 1, an infrared signal and an ultrasonic signal that are simultaneously transmitted from the wand unit by a receiving device provided on the ceiling are received to detect the position of the wand unit, and the guidance guide server detects the detected wand unit. Guide guidance information based on the position of the user is transmitted from the transmission / reception device to the portable terminal unit, and the user can move to the target location according to the guidance guidance information output from the earphone of the portable terminal unit. Is described.

  Further, in Patent Literature 2, when each visually handicapped person is within the communication range of each information providing device while the guide information of each information providing device is updated by the center device, each information providing device The guidance information is supplied to the visually impaired person's mobile terminal device, and the guidance information is transmitted to each visually impaired person in a voice format, and the current position, the traveling direction, etc. are notified to each visually impaired person by the guidance block device. A pedestrian support system is described.

  Further, in Patent Document 3, transponders that are electronic data carrier devices storing unique position information data are continuously embedded in the ground at predetermined intervals, and position information data transmitted from the respective transponders. In a non-contact state with the transponder via a reader, the position information data received by the reader is output as audio from a portable information terminal via headphones and provided to a visually impaired person A visually impaired person guidance system is described.

  However, in the guidance and guidance system disclosed in Patent Document 1, in order to detect the position of the cane part, it is necessary to provide a plurality of receiving devices on the ceiling for receiving the infrared signal and the ultrasonic signal transmitted from the cane part, respectively. In addition, since a configuration for transmitting the guidance information based on the detected position of the cane from the transmission / reception device to the portable terminal is required, the entire system becomes complicated and expensive.

  In addition, in the pedestrian support system disclosed in Patent Document 2, when each visually handicapped person is within the communication range of each information providing apparatus, information is provided to supply guidance information to the mobile terminal device of each visually handicapped person. It is necessary to arrange a plurality of devices, and it is also necessary to arrange a plurality of guidance block devices that inform each visually handicapped person of the current position, the traveling direction, etc. This system cannot be configured at low cost.

  In the visually impaired person guidance system described in Patent Document 3, transponders, which are electronic data carrier devices storing unique position information data, are continuously embedded in the ground at predetermined intervals, and the respective transponders are arranged. The position information data transmitted from the mobile phone is received in a non-contact state by the PFID system, and the position information data is output to the visually handicapped person from the portable information terminal through headphones, thereby guiding the visually handicapped person. This system also requires a plurality of transponders to be embedded and the system becomes expensive.

  Therefore, as shown in Patent Document 4, a guide line of a predetermined color is drawn on a route that can be passed from a predetermined guide start point to a desired guide destination point, and the visually handicapped person can select a predetermined guide line. A visually impaired person guidance device having a color identification means for selectively identifying the color of the user is carried, and the guidance of the predetermined color is performed while selectively identifying the predetermined color guide line on the route by the visually impaired person guidance device. A visually impaired person guidance system has been proposed in which a visually impaired person is guided from a guidance start point to a desired guidance destination point by proceeding along a line.

JP 2002-336293 A JP 2003-67885 A JP2004-78603 JP 2005-296570 A

By the way, in the visually impaired person guidance system disclosed in Patent Document 4, as described above, a guidance line of a prescribed color is provided on a route that is accessible from a prescribed guidance start point to a desired guidance destination point. Although it is necessary to draw, this guide line is drawn in the primary color so that the visually impaired person can easily identify the color with the visually impaired person guidance device, and this primary color guide line is There was a problem that a visually impaired person was too conspicuous and felt uncomfortable with the environment.
Therefore, an object of the present invention is to provide a visually impaired person guidance system that can safely and appropriately guide a visually impaired person without making the environment feel uncomfortable.

In order to achieve the above object, a visually impaired person guidance system according to claim 1 of the present invention is a guidance line drawn on a path that a visually impaired person can pass, and is carried by the visually impaired person and detects the guidance line. A visually impaired person guidance device for guiding the visually impaired person, wherein the guide line includes a plurality of first color pieces of a first color that can be detected by the visually impaired person guidance device, A plurality of second color pieces of a second color that is the same color as the first color and is thinner than the first color are drawn in the guide line according to a predetermined rule. A visually impaired person guidance device includes a light receiving unit that receives reflected light from the route, and a color of the color piece portion of the guide line drawn on the route based on a color signal of light received by the light receiving unit. Color identifying means for identifying the color And characterized by comprising a notification means for performing notification corresponding to the color of the Irohen portion.

According to a second aspect of the present invention, in the first aspect of the invention, the first color piece portion and the second color piece portion are each formed of a square, and each of them is rotated by an arbitrary angle to have the gap and the guide. It is arranged in a line.

According to a third aspect of the present invention, in the first aspect of the invention, the first color piece and the second color piece portion are each formed of an arbitrary polygon and are adjacent to each other with a predetermined interval. It is arranged in the guide line.

According to a fourth aspect of the present invention, in the first aspect of the invention, the first color pieces and the second color piece portions each have a linear shape, and are partially overlapped with each other at random in the guide line. It is characterized by being arranged in.

According to a fifth aspect of the present invention, in the first aspect of the invention, the first color piece and the second color piece portion each have a specific predetermined shape, and are partially overlapped with each other to form a partial gap. And randomly arranged in the guide line.

The invention of claim 6 further comprises a guide information generating part drawn at a specific position on the guide line in any one of the inventions of claims 1 to 5 , wherein the guide information generating part is the visual impairment. A plurality of color pieces that can be detected by the person guidance device are drawn in the guide information generating unit according to a predetermined rule, and the notifying unit is provided in the guide information generating unit identified by the color identifying unit. The predetermined guide information is notified corresponding to the color of the color piece portion.

A seventh aspect of the present invention is the vibration generating means according to any one of the first to sixth aspects, wherein the notification means generates vibration in a pattern corresponding to the color of the color piece portion identified by the color identifying means. It is characterized by being.

  According to the present invention, since the guide line is composed of a plurality of color pieces that can be detected by the visually impaired person guidance device, the visually impaired person can be safely and appropriately guided without feeling uncomfortable with the environment. A visually impaired person guidance system can be provided.

  In addition, the guidance information generation unit is also composed of a plurality of color pieces that can be detected by the visually impaired guidance device, so that the guidance information can be conveyed to the visually impaired without feeling uncomfortable with the environment. .

FIG. 1 is a perspective view showing an example of a guide line and a guide information generating unit drawn on a route that a visually handicapped person can pass in the visually handicapped person guidance system according to the present invention. FIG. 2 is a diagram showing a modification of the guide line and the guide information generating unit shown in FIG. FIG. 3 is a diagram showing an example of a visually impaired person guidance device used in the visually impaired person guidance system according to the present invention. FIG. 4 is a block diagram showing an example of the internal configuration of the visually impaired person guidance apparatus shown in FIG.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an example of a guide line and a guide information generating unit drawn on a route that a visually handicapped person can pass in the visually handicapped person guidance system according to the present invention.

  In the present invention, a plurality of color pieces of colors that can be detected by the visually impaired person guidance device described in detail later on the floor 100 in the building, which is a guide route that the visually impaired person can pass, for example. Guide information generator 15 for providing guide lines 11 to 15 drawn by arranging the parts according to a predetermined rule, and for notifying a visually handicapped person of predetermined guide information at predetermined locations of the guide lines 11 to 15 16 is configured so that a visually handicapped person can guide and walk along the guide lines 11 to 15 by detecting the guide lines 11 to 15 and the guide information generating unit 16 with a visually handicapped person guidance device. .

  In FIG. 1, the guide lines 11 to 15 and the guide information generating unit 16 include a plurality of first color pieces having a plurality of square shapes of a first color that can be detected by the visually impaired person guide device, a first color, By arranging a plurality of quadratic second color pieces of the second color, which are of the same color and thinner than the first color, at arbitrary angles, and arranged in the guide line with a gap. be painted.

  The guide lines 11 to 13 use dark blue as the first color and light blue as the second color. The guide lines 14 and 15 use yellow as the first color and yellow as the second color, respectively. Pale yellow is used, the guide lines 11 to 13 form a first guide line that guides the visually impaired by blue color identification as a whole, and the guide lines 14 and 15 are visually identified as yellow color identification as a whole. A second guide line for guiding a disabled person is formed.

  Similarly to the guide lines 11 to 15, the guide information generating unit 16 is also drawn by arranging a plurality of color pieces that can be detected by the visually impaired guidance device according to a predetermined rule. The guidance information generating unit 16 includes a plurality of red square-shaped first color piece portions and a plurality of square-shaped second color piece portions of a second color that is lighter than the first color because of the light red color. Each image is drawn by rotating it at an arbitrary angle and placing it in the guide information generator 16 with a gap.

  For example, the guidance information generation unit 16 detects red by a visually-impaired person guidance device, thereby identifying the visually-impaired person by blue color identification and visually identifying the visually-impaired person by yellow color identification. Guidance information indicating that it is a branch point with the second guide line that guides the visually impaired person is provided to the visually impaired person.

  In the above configuration, the guide lines 11 to 15 and the guide information generating unit 16 drawn on the floor 100 are drawn by arranging a plurality of color pieces according to a predetermined rule, so that the guide lines 11 to 15 and the guide information generating unit 16 are generated. The unit 16 does not feel uncomfortable with the environment, and the guide lines 11 to 15 and the guide information generating unit 16 can be reliably detected by the visually impaired person guidance device carried by the visually impaired person. A disabled person can be safely and appropriately guided along the guide route of the floor surface 100.

  FIG. 2 is a diagram showing a modification of the guide line and the guide information generating unit shown in FIG.

  2A shows details of the arrangement of the color lines in the guide lines 11 to 13 and the guide information generator 16 drawn on the floor surface 100 shown in FIG. As shown in a), a plurality of first color pieces 201 having a plurality of first colors and a second color that is the same color as the first color and is thinner than the first color. The square-shaped second color piece portion 202 is rotated by an arbitrary angle and arranged in the guide lines 11 to 13 or the guide information generating portion 16 with a gap.

  Here, for example, dark red, dark green, dark blue, and dark yellow are used as the first color, and the second color is bright red when the first color is dark red, and the first color is dark. Bright green is used when green, bright blue when the first color is dark blue, and bright yellow when the first color is dark yellow.

  FIG. 2B shows another modification of the arrangement of the color piece portions shown in FIG. In the modification shown in FIG. 2 (b), as shown in FIG. 2 (b), a plurality of first color piece portions 211 of the first color each consisting of an arbitrary polygon and the same color as the first color. A plurality of second color piece portions 212 of the second color, which is a system color and thinner than the first color, are arranged adjacent to each other with a predetermined interval.

  Here too, for example, dark red, dark green, dark blue, and dark yellow are used as the first color, and the second color is bright red when the first color is dark red, and the first color is dark. Bright green is used when green, bright blue when the first color is dark blue, and bright yellow when the first color is dark yellow.

  FIG. 2C shows still another modified example of the arrangement of the color piece portions shown in FIG. In the modification shown in FIG. 2C, as shown in FIG. 2C, the first plurality of color piece portions 221 each having a linear shape, and the same color as the first color, The plurality of second color piece portions 222 of the second color lighter than one color are arranged so as to partially overlap each other.

  Here too, for example, dark red, dark green, dark blue, and dark yellow are used as the first color, and the second color is bright red when the first color is dark red, and the first color is dark. Bright green is used when green, bright blue when the first color is dark blue, and bright yellow when the first color is dark yellow.

  FIG. 2D shows still another modified example of the arrangement of the color piece portions shown in FIG. In the modification shown in FIG. 2 (d), as shown in FIG. 2 (d), a plurality of first color piece portions 231 of the first color each having a leaf shape, and the same system as the first color The plurality of front second color piece portions 232 of the second color that is lighter than the first color are arranged so as to partially overlap each other.

  Here too, for example, dark red, dark green, dark blue, and dark yellow are used as the first color, and the second color is bright red when the first color is dark red, and the first color is dark. Bright green is used when green, bright blue when the first color is dark blue, and bright yellow when the first color is dark yellow.

  2 (b) to 2 (d), the guide lines 11 to 15 and the guide information generator 16 drawn on the floor 100 are drawn with a plurality of color pieces arranged in accordance with a predetermined rule. The guide lines 11 to 15 and the guide information generating unit 16 do not give an uncomfortable feeling to the environment, and the guide lines 11 to 15 and the guide information generating unit 16 are visually impaired persons carried by visually impaired persons. Since it can be reliably detected by the guide device, a visually impaired person can be safely and appropriately guided along the guide route of the floor surface 10.

  FIG. 3 is a diagram showing an example of a visually impaired person guidance device used in the visually impaired person guidance system according to the present invention.

  In FIG. 3, the visually-impaired person guidance device 10 has a color identification sensor 20 built in the tip, and a control circuit 30 that drives the notification unit 40 based on the output of the color identification sensor 20 at the upper end and a power source for the control circuit 30. The battery 50 to be configured is built in and formed into a stick shape that is carried by the visually impaired.

  Here, the color identification sensor 20 irradiates, for example, white light on the floor surface 100 shown in FIG. 1 when the visually impaired person guidance device 10 is used, and on the floor surface 100 described in FIGS. The reflected light from the guide lines 110 to 15 or the guide information 110 corresponding to the guide information generator 16 is received and detected by color separation.

  In addition, the control circuit 30 identifies the color of the guide unit 110 drawn on the floor surface 100 based on the output of the color identification sensor 20, determines whether the identified color is a preset color, If the color is set, the notification unit 40 is driven and controlled in a manner corresponding to the color, and the color information determined by the visually impaired person guidance device 10 is notified to the user.

  Moreover, although the battery 50 comprises the power supply of this control part 30, this battery 50 may be comprised from a solar cell, for example.

  FIG. 4 is a block diagram showing an example of the internal configuration of the visually impaired person guidance apparatus shown in FIG.

  In FIG. 4, the color identification sensor 20 includes a light emitting unit 21 and a light receiving unit 22. Here, the light emission part 21 can be comprised using a white light emitting diode, for example.

  The light receiving unit 22 includes, for example, a red photodiode having a red region as a sensing range, a green photodiode having a green region as a sensing range, and a blue photodiode having a blue region as a sensing range. By detecting the reflected light from the guide unit 110 drawn on the floor surface 100, the reflected light is color-separated into red, green and blue color signals.

  The light receiving unit 22 uses the same photodiode having red, green, and blue filters on the front surface instead of the red photodiode, the green photodiode, and the blue photodiode, respectively. You may comprise so that blue color separation may be performed.

  The red signal, the green signal, and the blue signal that are separated into red, green, and blue by the light receiving unit 22 of the color identification sensor 20 are input to the control unit 31 of the control circuit 30.

  The control unit 31 is configured by an MPU (microprocessor unit) or the like, and the guide unit 110 drawn on the floor surface 100 based on the red signal, the green signal, and the blue signal from the light receiving unit 22 of the identification sensor 20. Perform color identification. This color identification is performed based on the level ratios of the red signal, the green signal, and the blue signal.

  For example, when the red signal is not less than a specified value and the other green and blue signals are not more than the specified value, the color of the guide unit 110 drawn on the floor surface 100 is identified as red, and the green signal is If the other red signal and blue signal are both less than or equal to the specified value, the color of the guide part 110 drawn on the floor surface 100 is identified as green, and the blue signal is greater than or equal to the specified value. If the other red signal and green signal are both below the specified value, the color of the guide part 110 drawn on the floor surface 100 is identified as blue, and both the red signal and the green signal are above the specified value and blue. If the signal is below the specified value, the color of the guide part 110 drawn on the floor surface 100 is identified as yellow.

  In addition, when the red signal, the green signal, and the blue signal are all equal to or higher than the specified value, the color of the guide unit 110 drawn on the floor surface 100 can be identified as white.

  Here, the level ratio of each of the red signal, the green signal, and the blue signal may be calculated, and the color of the guide unit 110 drawn on the floor surface 100 may be identified based on the calculated value. Good.

  By the way, the control circuit 30 is provided with a detection color setting unit 32 for setting a detection color to be notified to the user. Information indicating the detection color set by the detection color setting unit 32 is added to the control unit 31. It has been. Then, the control unit 31 sets the color of the guide unit 110 drawn on the floor surface 100 identified based on the red signal, the green signal, and the blue signal as described above to the detection color set by the detection color setting unit 32. If included, the notification unit 40 is driven and controlled in a manner corresponding to the identified color.

  For example, when the detection colors set by the detection color setting unit 32 are red, green, blue, and yellow, the color identified by the control unit 31 is a color other than red, green, blue, and yellow. The notification unit 40 is not driven. However, when the color identified by the control unit 31 is red, green, blue, or yellow, the notification unit 40 is driven and controlled in a different manner corresponding to the color identified by the control unit 31. To do.

  Here, in the configuration of FIG. 4, the notification unit 40 is configured by the amplifier 44 and the vibrator 43, and therefore, when the color identified by the control unit 31 is red, vibration is generated from the vibrator 43 in the first pattern. The control unit 31 forms a notification signal to be applied to the amplifier 42 so that is generated. When the color identified by the control unit 31 is green, the control unit 31 forms a notification signal applied to the amplifier 42 so that vibration is generated from the vibrator 43 in the second pattern. When the color identified by the control unit 31 is blue, the control unit 31 forms a notification signal applied to the amplifier 42 so that vibration is generated from the vibrator 43 in the third pattern. When the color identified by the control unit 31 is yellow, the control unit 31 forms a notification signal applied to the amplifier 42 so that vibration is generated from the vibrator 43 in the fourth pattern.

  Note that the color identification in the control unit 31 is performed at regular time intervals, and the pattern of vibration generated from the vibrator 43 is different between when the color changes frequently and when the same color continues for a long time. May be.

  Further, when the same state continues for a long time, it is determined that walking is stopped, and power supply from the battery 50 to the control unit 31 or the like is stopped or intermittently performed to shift to the power saving mode. May be.

  The arrangement of the color piece portions in the guide line and the guide information generating portion is not limited to that shown in FIG. 2, and various forms can be adopted as long as it can be detected by the visually impaired person guidance device. Is possible.

DESCRIPTION OF SYMBOLS 10 Visually impaired person guidance apparatus 11-15 Guide line 16 Guidance information generation part 20 Color identification sensor 21 Light emission part 22 Light reception part 30 Control circuit 31 Control part 32 Detection color setting part 40 Notification part 44 Amplifier 43 Vibrator 50 Battery 100 Battery floor 110 Guide portions 101, 111, 121, 131 First color piece portion 102, 112, 122, 132 Second color piece portion

Claims (7)

A guide line drawn on a route that visually impaired people can pass,
A visually handicapped person guidance device that is carried by the visually handicapped person and detects the guide line to guide the visually handicapped person;
The guide line is
A plurality of first color pieces of a first color that can be detected by the visually impaired guidance device, and a plurality of second colors that are the same color as the first color and are lighter than the first color. And a second color piece portion of the second color piece portion in the guide line according to a predetermined rule,
The visually impaired guidance device
A light receiving means for receiving reflected light from the path;
Color identifying means for identifying the color of the color piece portion of the guide line drawn on the path based on a color signal of light received by the light receiving means;
A visually-impaired person guidance system, comprising: a notification unit configured to perform notification corresponding to the color of the color piece portion identified by the color identification unit. The first color piece portion and the second color piece portion are:
2. The visually impaired person guidance system according to claim 1, wherein each of the squares is arranged in the guide line with a gap by rotating at an arbitrary angle. The first color piece and the second color piece portion are:
The visually impaired person guidance system according to claim 1, wherein the guidance line is formed of an arbitrary polygon, and is arranged in the guide line adjacent to each other with a predetermined interval. The first color piece and the second color piece portion are:
2. The visually impaired person guidance system according to claim 1 , wherein the guidance system is formed in a linear shape and is randomly arranged in the guide line so as to partially overlap each other. The first color piece and the second color piece portion are:
2. The visually impaired person guidance system according to claim 1, wherein each of them has a specific shape and is arranged randomly in the guide line so as to partially overlap each other. A guide information generating unit drawn at a specific position on the guide line;
The guidance information generating unit
A plurality of color pieces that can be detected by the visually impaired guidance device are drawn in the guidance information generating unit according to a predetermined rule.
The notification means includes
The visually impaired person according to any one of claims 1 to 5 , wherein predetermined guidance information is notified corresponding to a color of the color piece portion in the guidance information generation unit identified by the color identification means. Guidance system. The notification means includes
The visually impaired person guidance system according to any one of claims 1 to 6 , wherein the visually impaired person guidance system generates vibrations in a pattern corresponding to the color of the color piece portion identified by the color identification means.

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