JP2003256994A - Method and system for guiding parking lot - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a driver of a vehicle with exact information about congestion states of parking lots. <P>SOLUTION: A parking lot congestion degree detection system 20<SB>j</SB>detects parking states in a parking lot at a congestion state in a parking lot PK<SB>j</SB>by parking state detection means 23<SB>1</SB>to 23Q and detects a parking state in a parking lot, that is, a congestion state in the parking lot PK<SB>j</SB>by entrance waiting state detection means (21, 22). Successively, a congestion degree of the parking lot is obtained by integrating the congestion states inside and outside the parking lot. Then, the obtained congestion degree of the parking lot is displayed on a display device. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking lot guidance method and a parking lot guidance system, and more particularly, to a parking lot guidance method and a parking lot guidance system for guiding a congestion situation of a parking lot.

[0001]

2. Description of the Related Art Conventionally, in order to effectively utilize a parking lot space and reduce road congestion, a driver of a vehicle attempting to enter a parking lot is provided with the parking situation in the parking lot as a congestion situation before parking. A parking lot guidance system that informs In such a parking lot guidance system,
The ratio of the actual number of vehicles parked to the number of vehicles that can be accommodated in the parking lot (hereinafter referred to as "parking rate") is detected, and the congestion status of the parking lot is determined based on the detection result. Then, by displaying the determination result on a display device installed at a predetermined location along the road, the driver of the vehicle traveling on the road is provided with information on the congestion situation of the parking lot.

In such a conventional parking lot guidance system,
For example, (a) "empty" when the parking rate is less than 90%
It is performed to determine which of the two states, the vehicle state stage and (b) the "full" vehicle state stage in which the parking rate is approximately 90% or more, is the congestion state. .
In this case, "empty" or "full" is displayed on the display device according to the determined type of congestion situation stage.

In addition, since there is a large difference between the meanings of "empty" and "full" with only two types of display such as "empty" or "full", the above-mentioned "empty" vehicle state stage is selected. , For example, (i) a stage of "empty" vehicle state where the parking rate is less than 80% and (ii) a stage of "crowded" empty vehicle state where the parking rate is 80% or more and less than 90%. As a stage, it has been proposed to determine which stage among the three stages in total the congestion state is added by adding the above-mentioned “full” vehicle state, and it has been partially put into practical use. In this case, "empty", "crowded", or "full" is displayed on the display device according to the determined type of congestion situation stage.

[0004]

In the above-mentioned conventional parking lot guidance system, the congestion situation of the parking lot is judged by paying attention to the parking rate in the parking lot, and the information of the congestion situation is provided. From the viewpoint of the driver of the vehicle, what the driver wants as the information on the congestion status of the parking lot is not only the information on the parking rate of the parking lot but also the time required to enter the parking lot is extremely important. .

This means that even when the parking rate is "empty", the number of vehicles waiting for parking in the parking lot may be long and the parking waiting time may be long, while the parking rate is almost 1 at all times.
This is because there is a good balance between warehousing and warehousing even when the vehicle is in a “full” state of 00%, and there are cases where warehousing is relatively smooth. The latter condition often occurs in large-scale parking lots with a capacity of several hundred cars.

As a result, the other parking lot in the "full" state is more preferable for the driver of the vehicle than the one parking place in the "empty" state. There is. However, from the information on the congestion status of each parking lot provided by the conventional parking lot guidance system, it is difficult to say that the driver of the vehicle can select a preferable parking lot more accurately.

The present invention has been made in view of the above circumstances, and provides a parking lot guidance method and a parking lot guidance system capable of providing a driver of a vehicle with accurate information on the congestion situation of a parking lot. The purpose is to provide.

[0008]

A parking lot guiding method of the present invention is a parking lot guiding method for guiding a crowded situation of a parking lot, and a parking situation in the parking lot and a waiting state for entering the parking lot. A congestion state detecting step of detecting the congestion degree; a congestion degree deriving step of deriving a congestion degree of the parking lot based on the detected parking state and a waiting state for parking; and a congestion degree display of displaying the derived congestion degree. A parking lot guidance method including steps and;

In this parking lot guidance method, first, in the congestion situation detection step, the parking situation in the parking lot, which is the congestion situation inside the parking lot, and the waiting situation for entering the parking lot, which is the congestion situation outside the parking lot, are detected. It Subsequently, in the congestion degree deriving step, the congestion degree of the parking lot is calculated based on the detected parking situation and the waiting state for parking, and the congestion situation of the inside and outside of the parking lot is integrated. Then, in the congestion degree display step, the derived congestion degree of the parking lot is displayed.

Therefore, according to the parking lot guidance method of the present invention, the information of the congestion situation of the parking lot which is the congestion degree of the parking lot, which is the total congestion situation inside and outside the parking lot, can be obtained from the driver of the vehicle traveling on the road. Can be provided to.

In the parking lot guidance method of the present invention, the waiting state for warehousing can be detected by detecting the number of warehousing units per unit time and the number of queuing waiting units.

In the parking lot guiding method of the present invention, the congestion degree deriving step is based on the detected parking situation.
Depending on the ratio of the number of vehicles currently parked to the number of vehicles that can be accommodated in the parking lot, it is possible to determine which of the plurality of parking lot congestion levels is currently set in the parking lot congestion degree. Based on the detected waiting state of the warehousing process, it is determined which of the plurality of out-of-parking-city congestion levels the out-of-parking congestion level is currently in, according to the predicted value of the warehousing waiting time. And a determination step of determining a total congestion degree based on the determined congestion degree inside the parking lot and the determined congestion degree outside the parking lot.

In the parking lot congestion degree determining step, it is possible to determine which of the two predetermined parking lot congestion degree stages the present parking lot congestion degree is. it can. For example, as in the conventional method described above, whichever of the two types of congestion levels in the parking lot, that is, the congestion level in the parking lot in the "empty" state and the congestion degree in the parking lot in the "full" state, Can be determined.

In the parking lot congestion degree determining step, it is possible to determine at which stage among the three predetermined parking lot congestion degree stages the current parking lot congestion degree is. . For example, as in the case of the conventional method newly introduced in recent years, the congestion degree in the parking lot in the "empty" state, the congestion degree in the parking lot in the "congested" state,
It is possible to determine which of the three types of congestion levels in the parking lot, namely, the congestion level in the parking lot in the “full” state.

In the outside parking lot congestion degree determining step, it is possible to determine at which stage of the two outside parking lot congestion degree stages the current outside parking lot congestion degree is. . For example, it is to be determined which stage of the two out-of-parking congestion degree stages, namely, the congestion degree outside the parking lot where the waiting time for parking is less than a predetermined time and the congestion degree outside the parking lot for which the waiting time is more than a predetermined time. You can

Further, in the comprehensive judgment step,
(A) When the determination result in the outside parking lot congestion degree determination step is equal to or higher than a predetermined level, the determination result in the outside parking lot congestion degree determination step is taken as the result of the comprehensive determination, and (b) the outside parking lot congestion degree When the determination result in the determination step is less than the predetermined level, the determination result in the parking lot congestion degree determination step may be the result of the comprehensive determination.

In this case, for example, at the stage of the congestion degree outside the parking lot where the expected value of the waiting time for parking, which is the greatest concern for the driver of the vehicle to which the information on the congestion situation of the parking lot is provided, is a predetermined time or more. In some cases, it is determined that the congestion degree outside the parking lot is the congestion degree stage of the parking lot, regardless of the congestion degree level inside the parking lot. On the other hand, when the expected value of the waiting time for parking is at the stage of the congestion degree outside the parking lot, which is less than the predetermined time,
It is determined that the congestion level in the parking lot is the congestion level of the parking lot. By providing the driver of the vehicle with the comprehensive determination result thus obtained, the driver of the vehicle can accurately determine the ease of entering the parking lot.

The parking lot guidance system of the present invention is a parking lot guidance system for guiding the crowded state of the parking lot, and the parking lot guidance system is based on the parking situation at the parking lot and the waiting situation for entering the parking lot. A parking lot guidance system comprising: congestion degree deriving means for deriving a congestion degree of a car park; and congestion degree display means for displaying the derived congestion degree.

In this parking lot guidance system, the congestion degree deriving means determines the congestion situation inside and outside the parking lot on the basis of the congestion situation inside the parking lot, that is, the parking situation in the parking lot and the congestion situation outside the parking lot, that is, the waiting situation for entering the parking lot. The congestion degree of the total parking lot is derived. Then, the congestion degree display means displays the derived congestion degree of the parking lot. That is, the parking lot guidance system of the present invention uses the parking lot guidance method of the present invention described above to provide guidance on the congestion status of the parking lot.

Therefore, according to the parking lot guidance system of the present invention, the information about the congestion situation of the parking lot, which is the congestion degree of the parking lot in which the congestion situation inside and outside the parking lot is comprehensive, is obtained from the driver of the vehicle traveling on the road. Can be provided to.

In the parking lot guidance system of the present invention, there is further provided a parking lot congestion degree detecting means for detecting a parking situation in the parking lot; and an outside parking lot congestion degree detecting means for detecting a parking waiting situation in the parking lot. It can be configured to include.

Further, in the parking lot guidance system of the present invention,
A parking rate detecting means for detecting the number of vehicles entering the parking lot per unit time by the out-of-parking congestion degree detecting means; and a waiting queue for detecting the number of vehicles waiting to enter the parking lot It is possible to adopt a configuration including a unit number detecting means;

In the parking lot guidance system of the present invention,
The congestion degree deriving means, based on the detected parking status, according to the ratio of the number of vehicles currently parked to the number of vehicles that can be accommodated in the parking lot, the congestion degree in the current parking lot is determined in advance. A parking lot congestion degree determining means for determining which stage in the stage; a plurality of current parking lot congestion degrees determined in advance in accordance with the predicted value of the parking waiting time based on the detected waiting state for parking. A parking lot congestion degree determining means for determining at which stage in the parking lot congestion degree stage; a total congestion degree is determined based on the determined parking lot congestion degree and the determined parking lot congestion degree And a comprehensive determination means for

[0024]

DETAILED DESCRIPTION OF THE INVENTION Referring to the accompanying drawings,
An embodiment of the present invention will be described.

FIG. 1 shows a schematic overall configuration of a parking lot guidance system 10 according to this embodiment. As shown in FIG. 1, this parking lot guidance system 10
(A) Parking lot PK ₁ existing along the road network RDNT
Parking lot congestion degree detection systems 20 _{1 to} 20 _M installed in each PK _M , and (b) Parking lot congestion degree detection system 20
Parking lot congestion information PS reported from each _{1 to} 20 _M
A center device 30 for centrally processing D _{1 to} PSD _M , and (c)
Display data DSD _{1 to} D notified from the center device 30
According to SD _N , the display devices 40 ₁ to 40 _N for displaying the congestion status of the parking lots PK _{1 to} PK _M are provided. Here, the congestion status displayed on each of the display devices 40 _k (k = 1 to N) is not limited to all of the parking lots PK _j (j = 1 to M), and the arrangement position of each of the display devices 40 _k is not limited. Accordingly, the congestion status in one or more parking lots for which it is appropriate to guide the congestion status is displayed.

The parking lot congestion degree detection system 20 _j (j
= 1 to M), as shown in FIG.
In the parking waiting vehicle observing device 21 for observing the parking waiting vehicle outside the parking lot PK _j , (b) the parking vehicle detecting device 22 for detecting the vehicle CAR to the parking lot PK _j , and (c) the parking lot PK _j Parking vehicle detectors 23 ₁ to 2 that detect whether or not there are vehicles parked at the respective parking positions.
_3Q , (d) Entry waiting observation information WIM from the entry waiting vehicle observation device 21, entry vehicle information ECD from the entry vehicle detector 22, and parking vehicle information PKD from the parked vehicle detectors 23 ₁ to 23 _Q. The parking lot information processing device 25 _j for determining the congestion degree of the parking lot PK _j is provided.

In this embodiment, the waiting vehicle observing device 21 has an image pickup device such as a CCD camera for picking up the waiting state of the vehicle outside the parking lot PK _j . The observation result obtained by the parking waiting vehicle observation device is notified to the parking lot information processing device 25 _j as parking waiting observation information (imaging information) WIM.

Further, in this embodiment, as the incoming vehicle detecting device 22, a device having a light transmitting system 22S and a light receiving system 22R is adopted. This receiving vehicle detection device 22
Then, whether or not there is a vehicle between the light transmitting system 22S and the light receiving system 22R is detected depending on whether or not the light receiving system 22R receives the light of the specific wavelength emitted from the light transmitting system 22S. ing. Then, in the light receiving system 22R, it is detected that one vehicle has been stored by the transition of the light receiving state in the order of (light receiving state → light receiving state → light receiving state) with respect to light of a specific wavelength. It is supposed to do. The detection result of the entering vehicle by the entering vehicle detection device 22 is the parking lot information processing device 25 as the entering vehicle information ECD.
_j is notified.

Further, in the present embodiment, the parking vehicle inspection is performed.
Deliverer 23_qThe parking schedules to be detected are
Installed on the ceiling of the pace, the distance to the object surface directly below
One with an optical sensor that measures
It This parked vehicle detector 23 _qNow, for the optical sensor
Based on the result of distance measurement by
To detect the presence or absence of parked vehicles
It Parking vehicle detector 23_qThe detection result by each is
Passed to the parking lot information processing device 25 as the parked vehicle information PKD.
To be known.

As shown in FIG. 3, the parking lot information processing device 25 _j waits for warehousing based on (a) the observation result notified by the observing vehicle observation device 21 and the detection result of the arriving vehicle detection device 22. A storage waiting time deriving device 26 for deriving an estimated value of time, and (b) a parked vehicle detector 23 _q (q =
1 to Q) Based on the respective detection results, the parking rate calculation device 27 that calculates the parking rate, and (c) the expected value of the warehousing waiting time derived by the warehousing waiting time derivation device 26 and the parking rate calculation device 27 A congestion degree determination device 28 that derives a comprehensive congestion degree based on the calculated parking rate and transmits the derivation result to the center device 30 as parking lot congestion degree information PSD _j .

Here, the storage waiting time derivation device 26 is
(I) A storage waiting vehicle number calculation device 26A that calculates the number of vehicles waiting for storage (hereinafter, referred to as "waiting storage vehicle number") based on the storage waiting observation information WIM notified from the storage waiting vehicle observation device 21. ) A warehousing rate calculation device 26B that calculates the warehousing rate based on the warehousing vehicle information ECD notified from the warehousing vehicle detection device 22, and (iii) waiting for warehousing based on the calculated number of vehicles waiting for warehousing and the warehousing rate Warehousing waiting time calculation device 2 for calculating an estimated time value
6C and.

In the present embodiment, the parking lot information processing device 25 _j is configured by combining the above-mentioned various devices, but the parking lot information processing device 25 _j is configured as a computer system, and the parking lot information processing device 25 _j is configured. It is also possible to have a configuration in which the functions of the various devices that make up the above are realized by a built-in program.

[0033] The center device 30, as shown in FIG. 4, (a) controls the communication between the parking lot congestion degree detecting system 20 ₁ to 20 _M, the parking lot congestion degree information PSD ₁ ~PS
A communication control device 31 for receiving D _M , and (b) a received P
The information to be displayed on each of the display devices 40 ₁ to 40 _N is edited based on SD _{1 to} PSD _M , and the display data DSD ₁ to
An edit processing device 32 for creating DSD _N and (c) a communication control device 33 for controlling communication with the display devices 40 ₁ to 40 _N and transmitting display data DSD _k to each of the display devices 40 _k. ing.

As shown in FIG. 5, each of the display devices 40 _k (k = 1 to N) has (a) a display area 42 corresponding to the parking lot to which the congestion degree is to be guided in the display device 40 _k .
Is a guide plate 41 placed on the drawn surrounding map
_k and (b) display data DSD _k transmitted from the center device 30, and a display for controlling the display of congestion status information of the parking lot corresponding to each display area 42 according to the received display data DSD _k. A control device _43k is provided.

Next, the operation of the parking lot guidance by the parking lot guidance system 10 configured as described above will be described mainly with reference to FIG. 6 and appropriately with reference to other drawings.

In the parking lot guidance system 10, as shown in FIG. 6, first, at step 101, the parking lot P
The parking lot congestion degree detection system 20 _j installed in each K _j (j = 1 to M) detects the congestion situation in each parking lot PK _j . In addition, in this embodiment, each of the parking lot congestion degree detection systems 20 _j has (a) the estimated storage waiting time EWT that is less than the predetermined time PWT, and the parking lot P
Congestion degree of "empty" vehicle with parking space at K _j ,
(B) The estimated warehousing waiting time EWT is less than the predetermined time PWT, and the congestion level is “full” with no parking space in the parking lot PK _j , and (c) the expected warehousing waiting time EWT is the predetermined time PWT or more. It is designed to detect which one of the three congestion levels of a certain "waiting" state.

In step 101, as shown in FIG. 7, first, in step 111, the parking waiting vehicle observing device 21 of each parking lot congestion degree detection system 20 _j.
Captures the situation of a vehicle waiting to arrive in the road network RDNT. Then, the parking waiting vehicle observing device 21 sets the imaging result as the parking waiting vehicle information WIM to the parking lot processing device 25 _j.
To notify.

Subsequently, in step 112, the storage waiting vehicle number calculation device 26A of the storage waiting time derivation device 26 in each of the parking lot information processing devices 25 _j receives the storage waiting vehicle information WIM. Then, the warehousing waiting vehicle number calculation device 26A uses the warehousing waiting vehicle information WIM, which is image information.
Is analyzed to obtain the number NWC waiting for warehousing, and the number NWC waiting for warehousing is notified to the warehousing waiting time calculating device 26C of the warehousing waiting time deriving device 26.

Steps 111 and 112 above
In parallel with the processing of step 1, in step 121, the incoming vehicle detection device 22 in each of the parking lot congestion degree detection systems 20 _j detects an incoming vehicle to the parking lot PK _j . Then, the incoming vehicle detection device 22 notifies the parking lot information processing device 25 of the detection result as the incoming vehicle information ECD.

Subsequently, at step 122, the warehousing rate calculation device 26B of the warehousing waiting time derivation device 26 in each of the parking lot information processing devices 25 _j receives the warehousing vehicle information ECD. Then, the storage rate calculation device 26B
Calculates the warehousing rate RTE based on the warehousing vehicle information ECD, and notifies the warehousing waiting time calculation device 26C of the warehousing waiting time derivation device 26 of the calculated warehousing rate RTE.

Next, in step 125, the receiving waiting time calculation device 26C calculates the following equation (1) using the received waiting waiting vehicle number NWC and the receiving rate RTE to calculate the expected receiving waiting time value. The EWT (hereinafter referred to as the “estimated warehousing waiting time”) is calculated. EWT = NWC / RTE (1)

The warehousing waiting time calculating device 26C notifies the congestion degree judging device 28 of the calculated expected warehousing waiting time EWT.

The above steps 111, 112, 121,
In parallel with the processing of 122 and 125, in step 131, the parked vehicle detector 23 _q (q = 1 to Q) in each of the parking lot congestion degree detection systems 20 _j determines whether the vehicle is parked at each parking position. Detect whether or not. Then, the parked vehicle detector 23 _q (q = 1 to Q) outputs the detection result as the parked vehicle information PKD to the parking lot information processing device 25.
To notify.

Subsequently, at step 132, the parking rate calculation device 27 of each of the parking lot information processing devices 25 _j.
Receives the parked vehicle information PKD. Then, the parking rate calculation device 27 calculates the parking rate based on the received parked vehicle information PKD and the number of parkable vehicles Q, and notifies the congestion degree determination device 28 of the calculated parking rate.

Next, at step 135, the congestion degree determination device 28 determines the overall congestion degree based on the received expected warehousing waiting time EWT and the parking rate. In this step 135, as shown in FIG. 8, first, in step 141, the congestion degree determination device 28 determines whether or not the expected warehousing waiting time EWT is a predetermined time PWT (for example, 20 minutes) or more. . Here, if an affirmative determination is made, the process proceeds to step 145, and the congestion degree determination device 28 determines that the current congestion degree of the parking lot PK _j is in the “waiting” state. On the other hand, if the determination is negative, the process proceeds to step 142.

In step 142, the congestion degree determination device 28 determines whether or not the parking rate is 100%.
If a negative determination is made here, the process proceeds to step 143, and the congestion degree determination device 28 determines that the current congestion degree of the parking lot PK _j is “empty”. On the other hand, if an affirmative determination is made in step 142, the process proceeds to step 144, and the congestion degree determination device 28 determines that the current congestion degree of the parking lot PK _j is “full”. To do.

The congestion degree determination device 28 reports the determined congestion degree of the current parking lot PK _{j to} the center device 30 as parking lot congestion degree information PSD _j . When the report to the center device 30 is made in this manner, the process of step 135 is completed, step 101 of FIG. 7 is completed, and the process proceeds to step 102 of FIG.

In step 102, first, the center device 3
0 receives the parking lot congestion degree information PSD _j reported from each of the parking lot congestion degree detection systems 20 _j . Subsequently, the center device 30 causes the parking lot congestion degree information PSD _{1 to} P
SD _M is edited to create display data DSD _k for displaying the congestion status corresponding to each of the display devices 40 _k (k = 1 to N). The center device 30 then displays the display data DSD.
_{The k} is notified to the display device 40 _k .

Next, at step 103, the display control device 43 _k of each of the display devices 40 _k displays the display area 73 of the display plate 71 according to the received display data DSD _k.
To display.

As described above, in the present embodiment, the parking situation in the parking lot, which is the congestion situation inside the parking lot, and the parking waiting situation in the parking lot, which is the congestion situation outside the parking lot, are detected and detected. Based on the parking situation and the waiting state for parking, the congestion degree of the parking lot, which is the total congestion situation inside and outside the parking lot, is derived. Then, in the congestion degree display step, the derived congestion degree of the parking lot is displayed. Therefore, it is possible to provide the driver of the vehicle traveling on the road with information on the accurate congestion situation of the parking lot, which is the congestion degree of the parking lot, which is the total congestion situation inside and outside the parking lot.

In addition, when the waiting time for warehousing, which is the congestion situation outside the parking lot, is the congestion degree of a predetermined time or more, the congestion degree outside the parking lot is "waiting" regardless of the parking rate congestion level. Is displayed, and if the congestion waiting time is less than the predetermined time, the congestion level in the parking lot, which is determined by focusing on the parking rate, is displayed as "empty" or "full". It Therefore, it is possible to guide an accurate congestion situation according to the ease of warehousing, which is the greatest concern for the driver of the vehicle provided with the information on the congestion situation of the parking lot.

In the above embodiment, the congestion level in the parking lot is set to two levels, that is, the "empty" vehicle state where the parking rate is less than 100% and the "full" vehicle state where the parking rate is 100%. Three
The number of stages may be more than one. For example, the level of congestion in the parking lot may be changed to a “empty” vehicle state where the parking rate is less than 80%, a “crowded” empty vehicle state where the parking rate is 80% or more and less than 90%, and a parking rate of 90%. There are 3 levels of "full" car condition with more than%.

Further, in the above embodiment, the level of congestion degree outside the parking lot is set to two stages depending on whether or not the expected waiting time for storage is equal to or longer than one predetermined time, but it may be set to three stages or more. In such a case, it is possible to provide a plurality of stages of the congestion degree outside the parking lot prior to the display of the congestion degree inside the parking lot, and it is possible to guide the congestion situation more finely than in the above embodiment.

Further, as the congestion degree outside the parking lot prior to the display of the congestion degree inside the parking lot, the expected warehousing waiting time can be displayed. In this case, for example, "wait for XX minutes (M)" or "wait for YY hours (H)" is displayed in the display area of the guide plate.

Further, both the congestion degree inside the parking lot and the congestion degree outside the parking lot can be displayed in the display area of the guide plate.

Further, in the above embodiment, the characters indicating the congestion status are displayed in the display area of the guide plate, but it is also possible to display a figure or a color indicating the congestion status. For example, the congestion status can be displayed by continuous bar heights (or lengths).

Further, in the above-described embodiment, the number of waiting vehicles for warehousing is detected by image data analysis, but from the detection result by the vehicle detector similar to the parked vehicle detector in the present embodiment installed above the road. It is possible to detect the number of vehicles waiting to be received.

Further, in the above embodiment, the congestion degree outside the parking lot is automatically detected. However, the congestion degree outside the parking lot may be determined by a person visually observing the waiting vehicle.

In the above embodiment, the parking rate, which is the degree of congestion in the parking lot, is detected by using the parked vehicle detectors 23 ₁ to 23 _Q to detect whether or not the vehicle is parked at each parking position. Although determined, the parking rate can be calculated based on the detection result of the entering vehicle and the detection result of the leaving vehicle. For this purpose, instead of the parked vehicle detectors 23 ₁ to 23 _Q , a leaving vehicle detecting device having the same configuration as the entering vehicle detecting device 22 may be installed near the exit of the parking lot. And
It is possible to obtain the parking rate by calculating the difference between the number of stored vehicles and the number of delivered vehicles, regarding the difference in the calculation results, which is the number of vehicles in the parking lot, as the number of parked vehicles, and dividing by the number of vehicles that can be accommodated.

In the above embodiment, the central device 30 centrally processes the congestion status of each of a plurality of parking lots. However, for each individual parking lot, a display device dedicated to the parking lot is installed in the vicinity thereof. However, it is also possible to inform the crowded state of the parking lot.

[0061]

As described above in detail, according to the parking lot guiding method of the present invention, it is possible to provide the driver with the information on the accurate congestion situation of the parking lot on the road. it can.

According to the parking lot guidance system of the present invention, the parking lot guidance method of the present invention is used to guide the crowded state of the parking lot, which is provided to the driver of the vehicle traveling on the road. be able to.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing an overall configuration of a parking lot guidance system according to an embodiment of the present invention.

FIG. 2 is a diagram schematically showing the configuration of the parking lot congestion degree detection system of FIG.

FIG. 3 is a block diagram showing a configuration of the parking lot processing device of FIG.

FIG. 4 is a block diagram showing a configuration of a center device of FIG.

5 is a diagram schematically showing a configuration of the display device of FIG.

FIG. 6 is a flowchart for explaining the operation of the parking lot guidance system of FIG.

FIG. 7 is a flowchart for explaining processing in a parking lot congestion degree detection step of FIG.

FIG. 8 is a flowchart for explaining a process in a total congestion degree determination step of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Parking lot guidance system, 20 ... Parking lot congestion detection system (congestion degree derivation means), 21 ... Parking waiting vehicle observation device (part of parking waiting number detection means, part of parking outside congestion degree detection means), 22 ... Incoming vehicle detection device (part of incoming rate detection means, part of parking lot congestion degree detection means), 23 ...
Parking vehicle detector (part of congestion level detection means in parking lot), 2
6A ... Warehousing waiting number calculation device (part of warehousing waiting number detection means, part of parking degree congestion degree detection means), 26B ... Warehousing rate calculation device (part of storage rate detection means, parking lot congestion degree detection means) 26C ... Entry waiting time calculation device (part of congestion degree detection means outside parking lot), 27 ... Parking rate calculation device (part of congestion degree detection means inside parking lot), 28 ... Congestion degree determination device (inside parking lot) Congestion degree judging means, congestion degree judging means outside parking lot, comprehensive judging means), 40 ... Display device (congestion degree displaying means).

Claims (11)

[Claims] 1. A parking lot guidance method for guiding a congestion situation of a parking lot, comprising: a congestion situation detecting step of detecting a parking situation in the parking lot and a waiting state for entering the parking lot; A parking lot guidance method comprising: a congestion degree deriving step of deriving a congestion degree of the parking lot based on a parking situation and a waiting state for warehousing; and a congestion degree display step of displaying the derived congestion degree. 2. The parking lot guidance method according to claim 1, wherein the detection of the waiting state for warehousing is performed by detecting the number of warehousing units per unit time and the number of waiting warehousing units per unit time. 3. The congestion degree deriving step is based on the detected parking situation, and a plurality of congestion degrees in the current parking lot are determined in advance in accordance with a ratio of the number of currently parked vehicles to the number of vehicles that can be accommodated in the parking lot. In the parking lot congestion degree determining step of determining which stage of the congestion degree stage in the parking lot, the current congestion degree outside the parking lot is based on the detected waiting state of the parking lot in accordance with the predicted value of the parking waiting time. A parking lot congestion degree determination step of determining which stage in a plurality of predetermined parking lot congestion degree stages; based on the determined parking lot congestion degree and the determined parking lot congestion degree, The parking lot guidance method according to claim 1 or 2, further comprising a comprehensive determination step of determining a comprehensive congestion degree. 4. In the parking lot congestion degree determination step, it is determined at which stage among the two predetermined parking lot congestion degree stages the current parking lot congestion degree is,
The parking lot guiding method according to claim 3, wherein: 5. In the parking lot congestion degree determination step, it is determined at which stage among the three predetermined parking lot congestion degree stages the current parking lot congestion degree is,
The parking lot guiding method according to claim 3, wherein: 6. The out-of-parking-city congestion degree determining step determines which of the two out-of-parking-park congestion degree levels the current out-of-parking congestion degree is predetermined.
The parking lot guiding method according to any one of claims 3 to 5, characterized in that. 7. In the comprehensive determination step, when the determination result in the congestion degree determination step outside the parking lot is equal to or higher than a predetermined level, the determination result in the congestion degree determination step outside the parking lot is set as the result of the comprehensive determination, and When the determination result in the out-of-place congestion degree determination step is less than a predetermined level, the determination result in the in-parking-zone congestion degree determination step is set as the result of the comprehensive determination, according to any one of claims 3 to 6. Parking guidance method described in paragraph. 8. A parking lot guidance system for guiding the congestion situation of a parking lot, wherein the congestion degree of the parking lot is derived based on the parking situation at the parking lot and the waiting situation for parking in the parking lot. A parking lot guidance system comprising: congestion degree deriving means; and congestion degree display means for displaying the derived congestion degree. 9. The method according to claim 8, further comprising: a parking status detecting means for detecting a parking status in the parking lot; and a parking waiting status detecting means for detecting a parking waiting status in the parking area. Parking information system described. 10. The warehousing waiting state detection means includes a warehousing rate detection means for detecting the number of vehicles entering the parking lot per unit time; and a number of vehicles waiting to enter the parking lot. The parking lot guidance system according to claim 9, further comprising: a waiting-carrying-carrying-number detecting unit that detects the number. 11. The congestion degree deriving means determines, based on the detected parking status, a plurality of congestion degrees in the current parking lot that are determined in advance according to the ratio of the number of currently parked vehicles to the number of vehicles that can be accommodated in the parking lot. A parking lot congestion degree determining means for determining at which stage in the parking lot congestion degree stage; a current outside-parking-crowd degree is determined according to a predicted value of the parking waiting time based on the detected parking waiting state. Out-of-parking area congestion degree determining means for determining which stage in a plurality of predetermined out-of-parking area congestion degree stages; based on the determined in-parking area congestion degree and the determined outside parking area congestion degree, The parking lot guidance system according to any one of claims 8 to 10, further comprising: a comprehensive determination unit that determines a total congestion degree.