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DESCRIPTION JP2006318230

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DESCRIPTION JP2006318230
PROBLEM TO BE SOLVED: To provide a parking lot guidance apparatus for guiding a vacant
space in a parking lot only to the driver when the driver receives a parking ticket at the entrance
of the parking lot. SOLUTION: A vacant parking space information processing unit 2 for
accumulating information indicating a vacant parking space using an output signal of a parking
space vehicle detection sensor 1, and a vacant parking according to an output signal of a ticket
generation device vehicle detection sensor 10. A ticketing processing control unit 3 that controls
the voice start control unit 4 by inputting information indicating a vacant parking space from the
space information processing unit 2 and outputs voice guidance corresponding to the
information indicating the vacant parking space As described above, the voice start control unit 4
for controlling the voice signal source 5, the directivity control unit 6 for modulating the voice
guidance outputted from the voice signal source 5 to be carried by ultrasonic waves, and the
output of the directivity control unit 6 And an acoustic radiator 8 for emitting an ultrasonic wave
based on the signal. [Selected figure] Figure 1
Parking lot guidance device
[0001]
The present invention relates to a parking lot guidance apparatus for providing voice guidance to
a driver by means of directional ultrasonic waves.
[0002]
When using a paid parking lot, the driver opens the window of the vehicle at the entrance,
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receives a parking ticket, and travels in the park while searching for an available parking space.
Drivers such as beginners and seniors spend time searching for vacant parking spaces in parking
lots where there are many obstacles such as multi-story parking lots. A route guidance plate for
guiding a vehicle is provided near the entrance of the parking lot as a conventional parking lot
guidance device, and a map from the current position to a vacant place is displayed on a map in
the parking lot. Road road beacons and broadcast antennas are installed, and on-vehicle devices
equipped in the vehicle are made to perform guidance on the screen of guidance routes or route
guidance by voice, etc., making it easy to search for parking spaces. (See, for example, Patent
Document 1).
[0003]
JP-A-2001-222799 (pages 3 and 4, FIGS. 1 to 6)
[0004]
Since the conventional parking lot guidance apparatus is configured as described above,
considerable facility costs are required to cause the on-vehicle device of the vehicle using the
parking lot to perform screen display and voice guidance, and parking lot equipment is required.
As the maintenance cost of the service becomes high, the cost recovery becomes difficult.
In addition, it is difficult to reliably convey each vacant parking space to each driver simply by
performing guidance display on each vehicle entering the parking lot using a guide plate or the
like, and the driver based on insufficient information. It takes time to search for the parking
space, and there is a problem that congestion easily occurs at the entrance of the parking lot and
environmental pollution such as nearby noise and exhaust gas occurs.
[0005]
The present invention has been made to solve the above-described problems, and when the
driver receives a parking ticket at the entrance of the parking lot, the vacant space in the parking
lot is voice-guided to only the driver. It aims at obtaining a parking lot guidance device.
[0006]
A parking lot guidance device according to the present invention is an information processing
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system for free parking space storing information indicating a parking space available by using
an output signal of a parking space vehicle detection sensor for detecting presence or absence of
a vehicle parked in the parking space. Means, an audio signal source storing voice guidance
corresponding to each parking space in advance, and an empty parking space information
processing means according to an output signal of a vehicle detection sensor for detecting a
vehicle stopped at the entrance of the parking lot Control means for controlling an audio signal
source to input information indicating a vacant parking space and outputting a voice guidance
corresponding to the information indicating the vacant parking space, and a voice output from
the voice signal source A directivity control means that modulates guidance so as to be carried by
ultrasonic waves, and a vehicle that stops an ultrasonic wave based on an output signal of the
directivity control means at a parking lot entrance Those having an acoustic radiator which
radiates towards.
[0007]
According to the present invention, the control means inputs information indicating a vacant
parking space from the vacant parking space information processing means according to the
output signal of the vehicle detection sensor detecting the vehicle stopped at the entrance of the
parking lot An output of the directivity control means which controls the voice signal source to
output voice guidance corresponding to the information indicating the vacant parking space, and
modulates the voice guidance output from the voice signal source so as to carry by ultrasonic
waves. Since the ultrasonic waves based on the signal are emitted toward the car parked at the
parking lot entrance, it is possible to guide the vacant parking space with clear voice, and
congestion occurring near the parking lot entrance Has the effect of being able to
[0008]
Hereinafter, an embodiment of the present invention will be described.
Embodiment 1
FIG. 1 is a block diagram showing a configuration of a parking lot guidance apparatus according
to a first embodiment of the present invention.
What is illustrated is a parking space vehicle detection sensor 1 installed in each parking space
in the parking lot, and an empty parking space information processing unit connected to all
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parking space vehicle detection sensors 1 installed in the parking lot (Available parking space
information processing means) 2, an empty parking space information processing unit 2, and a
ticket issue processing control unit (control means) 3 connected to a ticket issue apparatus
vehicle detection sensor 10 provided in a ticket issue device of a parking lot A voice start control
unit (control means) 4 connected to be controlled by the unit 3, a voice signal source 5
connected to be controlled by the voice start control unit 4, and an output signal of the voice
signal source 5 A directivity control unit (directivity control means) 6 connected to be input, an
amplifier 7 for amplifying an output signal of the directivity control unit 6, and an acoustic
radiator 8 for acoustically reproducing an output signal of the amplifier 7 It is provided. The
above-mentioned parking space is a place having a size for one car. Further, the above-mentioned
parking space vehicle detection sensor 1 is installed, for example, on the ceiling surface of the
parking lot, and detects whether or not there is a vehicle in the parking space located below the
parking space. The directivity control unit 6 is a modulator that modulates the sound indicated
by the sound data of the audible area output from the sound signal source 5 so that the
ultrasonic wave is emitted as a carrier wave. The acoustic radiator 8 is a directivity control unit 6
The radiator emits an ultrasonic wave indicated by the output signal of the air into the air.
[0009]
FIG. 2 is an explanatory view showing the arrangement of the parking lot guiding apparatus
according to the first embodiment. The same reference numerals are used for the same parts as
those shown in FIG. 1, and the description thereof is omitted. This figure is a schematic view
showing the arrangement when the ticket issuing device 20 installed at the entrance of the pay
parking lot is equipped with a parking lot guidance device. The ticketing apparatus 20 shown in
the figure stops the ticket issuing unit 21 for issuing a parking ticket to the driver, the vehicle 23
which normally enters the entrance of the parking lot and enters near the ticketing apparatus 20,
and the driver parks the ticket from the ticket issuing unit 21. A gate bar 22 is provided which
opens when the ticket is withdrawn. Further, for example, the acoustic radiator 8 is provided on
the upper surface of the ticket issuing apparatus 20. The acoustic radiator 8 is installed with its
direction determined so as to emit a beam-like ultrasonic wave S indicated by a broken line in the
drawing to the driver of the vehicle 23 stopped in the vicinity of the ticket issuing apparatus 20.
[0010]
Next, the operation will be described. The vacant parking space information processing unit 2
determines the position of the vacant parking space and the number of vehicles that can be
accommodated at present from the output signal of each parking space vehicle detection sensor
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1, and vacant for the vehicle entering the parking lot next Allocate a parking space. This process
records / accumulates empty parking space information representing the position of vacant
parking space, etc., and increases / decreases the number of vacant parking space information
recorded / accumulated so that the number can be accommodated at present. And it is
performed by recognizing the position of the parking space that can be parked.
[0011]
For example, for one vehicle that has entered the parking lot, guidance is given by voice output
from the acoustic radiator 8 as described later, and it is parked that the above-mentioned vehicle
is parked in the guided parking space. When the space vehicle detection sensor 1 detects, the
vacant parking space information processing unit 2 starts the use of the parking space in which
the sensor is installed by inputting the output signal of the parking space vehicle detection
sensor 1 To reduce the amount of free space information recorded / accumulated. In this
processing, the vacant parking space information indicating the parking space where the use has
been started is deleted from the information recorded / stored, and the contents recorded as the
position of the vacant parking space are updated. In addition, when the parking space vehicle
detection sensor 1 detects that the vehicle has exited from the parking space, plus processing of
adding vacant parking space information indicating the position of the vacant parking space to
information recorded / accumulated And update the content recorded as the position of the
vacant parking space. The vacant parking space information processing unit 2 records /
accumulates the vacant parking space information thus processed until the ticketing processing
control unit 3 instructs.
[0012]
The ticketing processing control unit 3 controls the voice start control unit 4 based on the vacant
parking space information input from the vacant parking space information processing unit 2
according to the ticketing operation of the parking ticket performed by the ticketing apparatus
20, and voice guidance Activate the output operation of When the vehicle 23 stops at the
installation position of the ticket issuing device 20, a signal for detecting the vehicle 23 is output
from the ticket issuing device vehicle detection sensor 10. When the driver of the vehicle 23
stopped at the above position opens the window and operates the ticket issue button provided on
the ticket issue device 20, the ticket issue processing control unit 3 inputs the information from
the ticket issue device vehicle detection sensor. While controlling the issue processing operation
of the parking ticket according to the operation of the signal and ticketing button, the vacant
parking space information processing unit 2 is controlled, and the parking space of the vehicle
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23 is selected from the accumulated vacant parking space information / Make the process of
deciding. The post-ticketing processing control unit 3 inputs the empty parking space
information selected by the empty parking space information processing unit 2 and outputs the
information to the voice start control unit 4 to perform voice guidance.
[0013]
The voice start control unit 4 controls the voice signal source 5 when the vacant parking space
information is input from the ticket issue processing control unit 3, and the above-mentioned
vacant parking space is selected from voice data stored / held in the voice signal source 5 in
advance. Instructs the player to select and play back the information corresponding to the
information. For this reproduction of voice data, for example, the ticket issue processing control
unit 3 operates the ticket issue button of the ticket issue device 20 until the driver opens the
window of the vehicle 23 and takes a parking ticket from the ticket issue unit 21 of the ticket
issue device 20 The voice start control unit 4 is controlled so as to detect a period from when the
parking ticket is taken out of the ticket issuing unit 21 and to give voice guidance during this
period.
[0014]
Further, when detecting that the vehicle 23 has run away from the output signal of the ticket
issuing apparatus vehicle sensor 10, the ticket issue processing control unit 3 instructs the voice
start control unit 4 to stop voice guidance, and the voice signal source 5, The operations of the
directivity control unit 6, the amplifier 7, and the acoustic radiator 8 are stopped. In the voice
signal source 5, voice data indicating a guidance message corresponding to all the parking spaces
of the parking lot is recorded / held in advance. The contents of each guidance message are, for
example, the number of floors on which a parking space to be guided is installed, and a number
for identifying the parking space, in the case of a multilevel parking lot.
[0015]
The directivity control unit 6 receives voice data from the voice signal source 5 and modulates
the voice indicated by this data so that the ultrasound becomes a carrier wave when emitted into
the air by the acoustic radiator 8. The amplifier 7 amplifies the output signal of the directivity
control unit 6 so that the acoustic radiator 8 can be sufficiently driven. The acoustic radiator 8
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generates an ultrasonic wave based on the output signal of the amplifier 7 and emits it into the
beam-like space region as described above. As described above, by emitting the sound
component in the ultrasonic wave, it is possible to emit the sound only in a narrow and limited
space due to the straightness of the ultrasonic wave and the characteristic of being hard to
diffuse, and a certain limited place For example, only the driver of the vehicle 23 that is present
in can listen to the audio guidance. Further, by limiting the space area in which the voice
guidance is heard, the driver can distinguish and listen to the surrounding sound and the voice
guidance, and the content of the guidance can be easily understood.
[0016]
As described above, according to the first embodiment, the vacant parking space information
processing unit 2 records / accumulates vacant parking space information based on the output
signal of the parking space vehicle detection sensor 1, and the ticket issue processing control
unit 3 vacantly parks Since the voice start control unit 4 is controlled based on the space
information to operate the voice signal source 5, the directivity control unit 6, the amplifier 7,
and the acoustic radiator 8, the parking ticket is Only the driver of the receiving vehicle 23 can
listen to the voice guidance having superdirectivity, and it is possible to clearly guide the vacant
parking space. In addition, since the vacant parking space can be guided to the driver by clear
voice, the parking space can be efficiently used, and the congestion near the entrance of the
parking lot can be alleviated to cause contamination by noise and exhaust gas. Has the effect of
being able to
[0017]
It is a block diagram which shows the structure of the parking lot guidance apparatus by
Embodiment 1 of this invention. FIG. 1 is an explanatory view showing an arrangement of a
parking lot guidance device according to a first embodiment.
Explanation of sign
[0018]
1 parking space vehicle detection sensor, 2 vacant parking space information processing unit
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(vacant parking space information processing means), 3 ticketing processing control unit (control
means), 4 voice start control unit (control means), 5 voice signal source, 6 pointing Control unit
(directivity control means), 7 amplifier. 8 sound emitter, 10 ticket issuing device vehicle
detection sensor, 20 ticket issuing device, 21 ticket issuing unit, 22 gate rod, 23 vehicle.
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