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JP2012169977

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2012169977
To provide a system capable of repeatedly generating a signal sound for informing a pedestrian
of a route to be guided as needed, and informing the entire direction of the walking range, and
the positional relationship of the danger place and the pedestrian. . In order to create a system
for repeating the guidance of pedestrians, fixed speakers are installed at the positions of A, B, C
and D, and an imitation is realized by emitting a signal sound only at the moment when a bird
flies at that point. . As described above, by moving the generation positions of the sounds of the
plurality of fixed speakers in order of the route, it is possible to inform the pedestrian of the
positional relationship between the entire direction of the walking range and the place. In order
to move the generation position of the signal sound at fixed time intervals, the speakers are
divided into four phases of A and E, B and F, C and G, D and H, and connected to the electric wire,
and this and common ground Signal wiring which bundled five electric wires together is installed
along the route, giving a gap of a fixed time for each phase to the acoustic signal, and sounding
each speaker at necessary timing by sending into each electric wire it can. [Selected figure]
Figure 1
Acoustic guidance system
[0001]
Provides a system to guide only the hearing more safely when a visually impaired pedestrian
crosses a pedestrian crossing, and also facilitates pedestrian hazard location and orientation of
the pedestrian to prevent falls from the railway station platform Provide an inexpensive signaling
system to inform Set the induction route freely as needed, bundle 4 wires along the route and
install the signal wiring, switch the signal sound current given the gap for a fixed time to 4 wires
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1
sequentially By supplying signal sound and emitting sound signals one after another from a
plurality of speakers installed by giving a gap of distance to each of the electric wires, the sound
signals are repeatedly generated in order such that sound is emitted while one sounding body
moves. Provide a system that enables guidance such as pedestrian crossings.
[0002]
A pedestrian crossing traffic light signal added as a conventional traffic signal aid acoustically
signals that the pedestrian signal is displaying a blue color so that a visually impaired pedestrian
can safely cross the road. The sound from the speaker is emitted as an output method. For
example, when there are pedestrian crossings in two directions, east-west and north-south
directions such as intersections, when one pedestrian crossing side is a green light, a sound of
"Piyo, Piyo, ..." flows from the speaker and the other crosses When the sidewalk side turns green,
different sounds of "Cuckoo, Cuckoo, ..." are heard, and the pedestrian is notified of the existence
of a pedestrian crossing signal and the direction in which it can be crossed. However, the
information of only one bit, which is the difference between "Piyo, Piyo" and "Cuckoo", can not
sufficiently convey information on the angle of the actual direction of crossing and the positional
relationship between pedestrian crossings and pedestrians, which causes visual impairment. It is
not enough to safely guide the pedestrian to the opposite bank, and several proposals have been
made as a guidance system for solving this. For example, a tactile block row including projections
for information transmission such as Braille is combined with a road surface, and a light emitter
is incorporated in part of the antenna block, and the pedestrian steps on to know the standing
position of the self. It also makes it possible to receive information from light emitters for people
with low vision and to supplement information such as walkways and stairs. However, this
method does not help the light emitter for blindness blindness.
[0003]
JP 2008-40685 JP JP 2005 232 923 JP
[0004]
Therefore, the present invention provides a system in which a plurality of speakers can be
combined to convey direction and position from a distant place, and when a pedestrian crosses a
pedestrian crossing, it can be safely guided only by hearing, and a railway station. In order to
prevent the platform from falling off, it provides an inexpensive signal system that easily informs
the pedestrian of the dangerous position and direction of the platform.
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2
Therefore, along the route freely set as needed, as the small bird jumps and emits a signal sound
repeatedly to inform the pedestrian of the route, the entire direction of the walking range, danger
Providing a system that can indicate the location relationship between a place and a pedestrian.
[0005]
According to the invention, accurate guidance of position and direction can be transmitted by
hearing only to the visually impaired pedestrian over the entire range of the pedestrian crossing
path, and safe guidance can be achieved simply by following the sound of small birds. It is.
Further, according to the system of the present invention, since the pedestrian obtains guidance
information only by listening to the nearby speaker sound, there is an advantage that the signal
sound does not need to be too large. It becomes possible to guide while holding down. In
addition, according to the invention, the pedestrian does not need to receive any other signal at
the handset. In addition, since the main part of this system is only the electric wire and the
speaker other than the control package electronic equipment, easy installation and low cost are
also great advantages. The invention is applicable to the guidance system of many outdoor
indoor facilities. By installing this system on the street, it is possible to give the blind person a
great deal of freedom.
[0006]
According to the invention, accurate guidance of position and direction can be transmitted by
hearing only to the visually impaired pedestrian over the entire range of the pedestrian crossing
path, and safe guidance can be achieved simply by following the sound of small birds. It is.
Further, according to the system of the present invention, since the pedestrian obtains guidance
information only by listening to the nearby speaker sound, there is an advantage that the signal
sound does not need to be too large. It becomes possible to guide while holding down. In
addition, according to the invention, the pedestrian does not need to receive any other signal at
the handset. In addition, since the main part of this system is only the electric wire and the
speaker other than the control package electronic equipment, easy installation and low cost are
also great advantages. The invention is applicable to the guidance system of many outdoor
indoor facilities. By installing this system on the street, it is possible to give the blind person a
great deal of freedom.
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3
[0007]
It is a block diagram which shows the circuit structure of signal wiring of the sound guidance
system of this invention. 1 sound source, 2 switches, 3 amplifiers, 4 signal wires, 5 common
ground, 6 controllers, 7 A to 7 H are speakers of each phase. 4 signal wiring is a bundle of 4
common ground and 4 electric wires connecting speakers of 7 phases. The eight control package
is a package of one sound source, two switches, three amplifiers, and six controllers. It is the
figure which looked at the pedestrian crossing which applied the acoustic guidance system of
this invention from diagonally. The signal wiring installed above the pedestrian's head is down on
both sides. It is a top view of the pedestrian crossing to which the sound guidance system of
Example 1 of this invention is applied. There are two signal wires at the top and bottom, and the
black dots are speakers. The signal wiring indicated by the right-pointing arrow that writes
"Peepy" moves the generation position of the signal sound "Peepy" in the direction of the arrow.
The sound of the arrow that says "Kukuo" moves in the opposite direction to "Peepy". This figure,
together with FIG. 5, is a view for explaining the reason why the signal sound of this voice signal
is heard as a small bird sounds and flies. FIG. 4 shows the time and the position where the
speaker installed in the signal wiring generates the signal sound. The horizontal axis is the length
of the pedestrian crossing along the wiring route, and it is assumed that the total length is 10 m.
The vertical axis is the time from when the pedestrian starts crossing. Also, at the same time, it
indicates the time when the one to four-phase tone sounds are generated when the tone sounds
from the first phase. The time lag between the phases is t = 0.5 seconds. The ○ marks indicate
the time and distance that the speaker generates the signal sound. Assuming that a pedestrian
walks at a constant speed of 1 m per second, the dashed arrow going from the origin of the
figure to the upper right is the pedestrian's trajectory. This figure is the figure which connected
the generation location of the signal sound which a pedestrian hears in time order, when the
same signal sound as FIG. 4 generate | occur | produces. For pedestrians, the locations where the
signal sounds are heard move in this order. This figure, together with FIG. 7, is a diagram for
explaining the operation of the audio signal when the pedestrian crossing is a red light, and for
the red signal, it is a figure for explaining the reason why it sounds like a small bird is ringing. It
is. In this case, the signal sound is sent only to the first phase and the third phase. This figure is
the figure which connected the generation location of the signal sound which a pedestrian hears
in time order, when the same signal sound as FIG. 6 generate | occur | produces. Because the
location does not change, the pedestrian sounds like the sound generator has stopped. It is a top
view of the platform of the railway station to which the sound guidance system of Example 2 is
applied. There are two signal wires 4 at the top and the bottom, and black dots are speakers.
In the signal wiring indicated by the arrow pointing to the right, the signal sound "Peep" runs to
the right. In the signal wiring of the arrow pointing left, a signal sound of "Kukuo" runs leftward.
It is a top view of the system of Example 3 which applied this invention to the street. Indicates a
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part of a city where roads run north-south, east-west. The signal wiring 4 of the acoustic
guidance system of the present invention was installed at the boundaries and intersections of all
the roadways and sidewalks. At the intersection, a speaker indicated by a white circle is installed
in the signal wiring indicated by a white arrow, and the signal sound moves in the direction of
the white arrow. On roads other than intersections, signal wires shown by black arrows and
speakers shown by black dots will be installed. At the intersection, control is performed in
synchronization with the red and blue lights. As an example, the intersection between the 2nd
street and the first street is shown as an intersection P, and the intersection between the 2nd
street and the 2nd street is shown as an intersection Q. The intersection P shows the state of the
traffic light on the green light side when the 2nd Street Road is green light, and the intersection
Q shows the state of the traffic light on the green light side when the 2nd Street Road is red light,
so that 2nd Street is green light. Show. The signal lines indicated by the black arrows in the road
sections other than intersections always emit a passable signal in the direction of the arrows.
Enter the street name in the tone, and the tone proceeds in the direction of the arrow.
[0008]
Example 1 FIG. 1 is a block diagram showing a signal wiring circuit used in Example 1 in which
the present invention is applied to a pedestrian crossing. A signal from the sound source 1
repeating the same sound with a fixed time lag t of about 0.5 seconds is sequentially sent to the
four electric wires via the amplifier 3 as signals of the first to fourth phases by the switch 2. (The
number n of phases is suitably 3 to 5). ) A signal wiring 4 in which the wires for the four phases
and the common ground wire 5 are put together is installed along the crossing path, and the
wires of each phase have a distance d of about 1 m corresponding to each phase. The speaker 7
is arranged on ABC ... H. Then, the multiple speakers of the first to fourth phase wires
sequentially emit the same signal sound, and the location of the sound changes by d = 1m, so one
object moves at a speed of v = d / t = 2m per second It sounds like you are making a sound. If it
progresses to the 4th phase, it will return to the 1st phase and emits a tone repeatedly. If you use
the "Piyo Piyo" sound used in pedestrian crossings, it sounds like a small bird will fly in the signal
wiring path at a speed of 2 meters per second while shouting "Piyo Piyo". The velocity v can be
freely set by adjusting the gap d of the speaker distance between the phases.
[0009]
FIG. 2 shows the signal wiring 4 installed at the pedestrian crossing. Black dots indicate a
plurality of speakers 7 such as ABC installed in the wiring. A sound source 1, a switch 2, an
amplifier 3, a controller 6 and the like are contained in a control package 8. If the signal wiring 4
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is put on the pedestrian crossing, the pedestrian is guided in the right direction by following the
small bird passing the overhead. In addition, at the end of the crossing, if the route of the signal
wiring is lowered and the distance d of the speaker between the phases is reduced, the motion of
slowing down is transmitted to the pedestrian in order for the small bird to land. Since this sound
guidance system is juxtaposed with a traffic light that uses red, blue and yellow traffic lights, it is
necessary to change the possible and non-crossing traffic sounds in synchronization with the
traffic lights. Control for this is performed by the controller 6. In the case of a red light, using a
voice "chichi" and setting the time t between signals of the phases to 0, the bird stops and sounds
"chichi". The operation will be described later.
[0010]
FIG. 3 is a plan view of a pedestrian crossing with two signal wires at the top and bottom, and the
black dots are speakers. The right-pointing arrow written above is the signal wiring on the left
side of the pedestrian crossing and emits a beeping sound. The left-pointing arrow, written
below, produces a signal of "kukuo" with the signal wiring installed on the right. If a bird roars
and flies "Peepy" on the left side and "Cooky" on the right side and walks in the opposite
direction, the pedestrian can know the width and position of the pedestrian crossing. The speaker
interval d between the phases of the signal wiring reduces d at the beginning and end of the
transition to reduce the velocity v and makes the pedestrian feel the position information of the
beginning and the end of the passage. In this way, guidance can be given to convey to the
pedestrian the direction and position of the entire range of the pedestrian crossing only by
sound.
[0011]
FIGS. 4 and 5 are diagrams for explaining the reason why a small bird sounds like one by one
while it sounds like "Piyopiyo" and sounds to pass. The horizontal axis is the length of the
pedestrian crossing along the wiring path, and it is assumed that the length is 10 m. The vertical
axis is the time from when the pedestrian starts crossing. Assuming that the pedestrian walks at
a constant speed of 1 m per second, the broken line extending from the origin of the figure to the
upper right represents the trajectory of the pedestrian. The ○ marks indicate the time and
distance for the speaker to generate a signal sound of “Piyo Piyo”. Looking at FIG. 4, at time 0
seconds at the beginning of the passage, three speakers are installed at 0 m, 4 m, and 8 m on the
first phase wire, and therefore, the ringing of these is indicated by ○. At the next time 0.5
seconds, three speakers are installed on the second phase wire at 1 m, 5 m, and 9 m shifted by 1
m from the first phase, and these sound. At the next time of 1.0 seconds, the speaker installed at
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2 m, 6 m and 10 m at a position 1 m away from the second phase of the third phase wire will
sound. At the next 1.5 seconds, the speakers installed at 3 m, 7 m, and 9 m at a position 1 m
offset from the third phase of the fourth phase wire will sound. At the next time of 2.0 seconds,
the three speakers of the first phase wire rang. The same is repeated thereafter. When the
pedestrian hears a signal while crossing, the sound of the speaker within 3 m before and after
the pedestrian can be heard, and if the one further away can not be heard, the position and time
of the audible speaker are indicated by the two dotted lines in the figure. ○ in the range between
The dashed line is drawn at a position where the broken line of the pedestrian's trajectory is
moved 3.5 m to the left and right.
[0012]
FIG. 5 shows the same position and time as the speaker in FIG. The pedestrian can hear the
speaker between the two dashed lines in the figure. The circle marks are shown by connecting
four arrows. When looking at the time sequence, the first arrow is "Piyo" at a distance of 0 at
time 0 seconds, "Piyo" at a distance of 1 m at time 0.5 seconds, and an arrow The screams one
after another along the line. This is exactly the same as a small bird's roaring from the origin with
a constant velocity v = d / t = 2 m / s. Thus, the pedestrian can feel that way and feel the position
and direction of the route. If the bird actually moves there is a Doppler effect, but now we can
ignore this difference. In the next arrow, a small bird also makes a cry as it travels at a constant
speed v, and the small bird passes the pedestrian at a distance of 4 m, which is an intersection
point of the arrow line and the broken line of the pedestrian locus. The third arrowhead bird
passes the pedestrian at a distance of 8m. Birds fly periodically, and their period T is T = nt. The
flying distance D of the small bird is D = nd = 4 m. Here, n is the number of phases, and n = 4 in
this example. When the distance interval D is too large and D / 2 exceeds the sound transmission
distance, there is a part where the pedestrian can not hear the bird's voice. Conversely, if D is
small, the loudness of the signal sound can be reduced to reduce the noise damage to the
neighborhood. In addition, since the height of the signal wiring needs to be higher than the
height of the vehicle in order not to block the passage of the vehicle, it is important to use a
directional speaker at such time as it helps to reduce nearby noise. It can be used in the practice
of the invention. .
[0013]
6 and 7 show the signal sound at the time of the red signal. In FIG. 6, the voice "chichi" is sent
only to the one-phase and three-phase electric wires, and the position and time at which the
speaker sounds when nothing is sent to the two-phase and four phases are shown. The
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pedestrian hears the generation of the sound of the ○ speaker within the range between the two
dashed lines in the figure. FIG. 7 is a diagram of the arrangement of sound generation of the
same speaker as that of FIG. 6 and is shown by connecting circle marks of the audible range with
six arrows. As every arrow line advances in time, the place doesn't change, so it sounds like a
small bird stops and says "Chichi". In addition, signals in the order of one phase, one phase, two
phases, two phases, two phases, three phases, three phases, etc. can be used for a yellow signal
whose travel speed is half. When the red light, if you set the movement speed to 0, there is no
direction information, and it is better to set the speed to a quarter because the disabled people
who are left on the pedestrian crossing of the red light will be lost.
[0014]
Embodiment 2 FIG. 8 is a plan view showing the installation of signal wiring when the acoustic
guiding system of the present invention is applied to the fall prevention on a railway station
platform. The signal wiring 4 is placed overhead along the path in which the tactile block tiles 9
are embedded parallel to the lines on both sides of the platform. A right-pointing arrow wire is
placed at one end of the platform to generate a "peaky" tone. A left arrow signal wire is installed
on the other side of the platform to make a "kuku" signal. When both ends in the longitudinal
direction of the home are connected to the stairs 11 going up or down, the route of the signal
wiring is extended to the stairs as it is, and the path is raised or lowered at that position to teach
the position of the rise or down. Can be bent. This makes it possible to easily inform the
pedestrian of the dangerous position and the overall direction of the platform.
[0015]
Example 3 FIG. 9 is a plan view of a street guidance system to which the present invention is
applied. In this example, the roads are arranged in a grid, and the 1st, 2nd, and 3rd avenues run
north to south, and the 1st, 2nd, 3rd, and so on roads run east to west. Signal wiring 4 was
installed at the boundaries and intersections of all roads and walkways. Furthermore, in the south
from the south side footpath of 3-chome road, the signal wiring 4 was installed on both sides of
the sidewalk. At the intersection, a speaker indicated by a white point is installed in the signal
wiring indicated by a white arrow, and the signal sound moves in the direction of the white
arrow. On road parts other than intersections, signal wires shown by black arrows and speakers
shown by black dots are installed. At the intersection, there are four signal wires in the vertical
direction and four signal wires in the horizontal direction, and control is performed in
synchronization with the red / blue of the signal light. As an example, at the intersection P on the
2nd street and the first street, the signal wiring when the left and right direction is a green light
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is shown. On the contrary, at the intersection Q between the 2nd street and the 2nd street, the
vertical direction indicates the signal wiring when the green light is on. At the time of a green
light, a passable signal is sent to the four signal wires in that direction. For example, a signal
sound with a movement speed of 1⁄4 is sent to the four signal wires on the side of the red signal
as a stop signal sound. The signal lines indicated by the black arrows in the road sections other
than intersections always emit a passable signal in the direction of the arrows. If you go beyond
the intersection and follow the same street name, it will act as a road sign for guidance. In this
embodiment, the boundary between the sidewalk and the driveway is completely surrounded by
the passable signal wiring, and the signal sound on the boundary turns clockwise around the safe
area, so the signal sound moves in the direction of movement. The right side of the signal wiring
is a safety area. If you follow this rule and design a guidance system for the street, in the street of
this guidance system, the progression of the traffic noise will be the same as the rule that left
traffic (right traffic in some countries / regions) is used as a rule. It is possible to make a rule that
the right side of the signal wiring path is a safe zone in the direction. According to this rule, when
walking, it is sufficient to walk in the direction of signal sound induction immediately to the right
of the signal wiring (or in the opposite direction, walking immediately to the left of the signal
wiring). If you can hear a tone on the left, you will be warned that the pedestrian is in a danger
zone. However, on the road where the signal wiring is installed only at the boundary between the
driveway and the sidewalk, a visually impaired pedestrian walks along the boundary between the
driveway and the sidewalk, and at the sidewalk where bicycles can pass, there is a concern that
the pedestrian collides with the bicycle . Therefore, if the signal wiring 4 is installed on both sides
of the sidewalk from the sidewalk on the south side of the 3-chome road, then the pedestrian
walks just to the right in the moving direction of the signal sound of the signal wiring on the left
end of the road. It will be safe to pass.
Since this is a general rule, in order to actually install the guidance system, the design should be
made based on the facts of the city. In this way, the visually impaired get greater freedom of
movement and better welfare.
[0016]
1 sound source, 2 switches, 3 amplifiers, 4 signal wiring, 5 common lines, 6 controllers, 7
speakers, 8 control packages, 9 tactile blocks, 10 blind pedestrians, 11 stairs
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