JP3116213B2 - Vehicle type identification device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle type discriminating device used for a mechanical parking device for transferring a vehicle to a plurality of parking rooms.

[0002]

2. Description of the Related Art In recent years, various types of parking facilities have been put into practical use, one of which is a mechanical parking system. Many types of mechanical parking devices are also used, but among them, the one that connects between the vehicle entry / exit room and multiple parking rooms with a traveling trolley has excellent storage efficiency, so recently Attention has been paid.

As shown in FIGS. 24 to 26, a mechanical parking device is often installed in an underground portion of a building 1 such as an office building, a store, or a warehouse. The inside is formed by combining a plurality of units 2, 3 and the like arranged side by side so as to accommodate more vehicles. These units 2 and 3 are configured as follows.

[0004] Inside one unit 2, a traveling path 4
And a traveling rail 6 of a traveling vehicle 5 erected on the traveling path 4.
And a plurality of parking rooms 7 arranged in tandem on both left and right sides of the traveling path. Each parking room 7 is formed on parking shelves 8 (FIG. 26) arranged in multiple stages (for example, two stages), and a plurality of traveling vehicles 5 are arranged in the traveling path 4 corresponding to each parking shelf 8. Have been. The unit 3 is also the same as the unit 2
And its description is omitted.

On the other hand, an entrance / exit passage 10 is set in the first floor of the building 1 and the like, and an entrance room 11 and an exit room 12 are provided in the middle of the passage. The storage room 11 and the storage room 12 are lifting devices
13 communicates with unit 2. In addition, the traveling vehicle 5, the parking room 7, the storage room 11, the storage room 12, and the elevating device 13
, A front-wheel traverse conveyor 14 and a rear-wheel traverse conveyor 15 for transferring vehicles between each other are provided side by side. As for the unit 3, the storage room 11, the storage room 12, and the elevating device 13 are shared with the unit 2, and the transfer provided between the elevating device 13 and the traveling carriage 5 of the unit 3 is provided for transferring between units. The vehicle 9 is delivered by being communicated with the rear-wheel transverse conveyors 14 and 15 in front of the room 16.

[0007] As shown in FIG. 27, the traveling carriage 5 includes a main frame 18 movably mounted on traveling rails 6 via traveling wheels 17. On the main frame 18, the above-described front-wheel lateral feed conveyor 14, the rear-wheel lateral feed conveyor 15, a traveling motor 19, and the like are mounted, and by driving the traveling wheel 17 with the traveling motor 19, , Rail 6
It is designed to run on top of itself. In addition, traveling cart 5,
Between the parking room 7 and the lifting / lowering device 13 (see FIGS. 24 to 26), the front / rear wheel lateral feed conveyors 14 and 15 can be rotated synchronously with each other.

A movable frame that moves in a direction (lateral direction) perpendicular to the traveling path 4 is provided on the main frame 18 of the traveling vehicle 5.
20 are provided. A power transmission roller 21 is rotatably provided on a side surface of the movable frame 20 facing the parking room 7. The power transmission roller 21 and the conveyors 14 and 15 of the traveling vehicle 5 are both driven by a drive motor 22. The main frame 18 has a hydraulic cylinder 23 as a driving means for moving the movable frame 20 in a direction orthogonal to the traveling path 4, that is, in a direction to approach the parking room 7.
Is provided. Further, on the traveling path 4 side of the parking room 7, a driven roller 24 interlocking with the conveyors 14 and 15 of the parking room 7 is provided.
Is provided.

When the vehicle is to be parked, the traveling vehicle 5 is stopped in accordance with the target parking room 7, and the movable frame 20 of the traveling vehicle 5 is moved in the direction of the target parking room 7 by the hydraulic cylinder 23. Let it. Thereby, the power transmission roller 21 provided at the side end of the movable frame 20 is pressed against the driven roller 24 of the parking room 7.

When the power transmission roller 21 comes into pressure contact with the driven roller 24, the drive motor 22 operates to rotate the conveyors 14, 15 of the traveling vehicle 5 and the power transmission roller 21. Then, the driven roller 24 is rotationally driven to transmit the rotation to the conveyors 14 and 15 of the parking room 7, and the traveling vehicle 5 and the conveyors 14 and 15 of the parking room 7 rotate synchronously and are placed on the elevator 7. The vehicle is carried into the target parking room. When the vehicle is to be taken out of the vehicle, the conveyors 14 and 15 are driven in the opposite direction to the entrance, so that the vehicle is carried out similarly to the entrance.

By the way, the number of units 2 and 3 to be installed can be freely set according to the required number of vehicles to be accommodated and various conditions at the installation location of the mechanical parking device. In addition, deployment in the horizontal and vertical directions is also free.
The applicant of the present invention has already disclosed details of the mechanical parking device having such a structure in Japanese Patent Application No. 6-53249. In particular, in a parking device having a large number of accommodations, the form of a vehicle that can be parked (a general passenger car such as a sedan, or a wide-area vehicle such as a one-box car or an RV car) is provided for each unit or each parking room in the unit. And high-roof vehicles, etc.), so-called parking sections are set, and parking spaces of different sizes are formed for each vehicle type, so that the installation space of the mechanical parking device can be used more effectively. . As shown in FIG. 28, in a parking lot having many units, the unit 2 is divided into passenger cars such as sedans, and the unit 3 is divided into one-box vehicles, RV vehicles and the like. For vehicles that do not fit into any of the units, parking space 26
Is provided.

In the case of a mechanical parking device in which such a storage category is set, it is necessary to determine the form of the vehicle at the vehicle entrance 25 (FIG. 28) or the like. In this discrimination work, conventionally, a parking lot attendant has judged from a vehicle type, a shape, and the like, selected a suitable unit or a parking room, and instructed the course of the vehicle. In addition, as a method of automatically issuing an instruction of a compatible unit, a parking room, and the like, a video camera is installed at the vehicle entrance 25, the vehicle is photographed with the video camera, and the image is subjected to an image processing device to determine the form of the vehicle. A vehicle equipped with a vehicle type discriminating device is also in practical use.

[0012]

However, in the conventional method of leaving a parking clerk to discriminate a vehicle, unmanned operation of a mechanical parking device (small number of people) is required.
This could hinder the promotion of the training, and could lead to misjudgment by staff. In addition, for vehicles equipped with accessories such as carriers, it is difficult to select a suitable unit or a parking room, thereby deteriorating the operation efficiency of the mechanical parking device. In addition, the technique of automatically taking a picture of a vehicle by a video camera and automatically discriminating the vehicle by image processing has problems that accurate image processing is difficult and that the cost of the apparatus itself is extremely high. A low-cost vehicle type discriminating apparatus using another method has been desired.

The present invention has been made in view of the above problems, and an object of the present invention is to automatically and accurately determine a vehicle type by a vehicle type determining device using a sensor.

[0014]

According to a first aspect of the present invention , there is provided a vehicle type discriminating apparatus for a mechanical parking apparatus having a storage section according to a type of a vehicle. And has a vehicle type determination area through which the vehicle passes, and the vehicle type determination area includes, in parallel with the traveling direction of the vehicle,
Multiple sensors arranged at a height that can detect only vehicle wheels
Sensor box and the detection pattern of the plurality of sensors
Detecting means having a determining device for determining a wheel center from a vehicle center; and a wheel center position of the vehicle detected by the sensor box.
End detection device that detects the front and rear ends of the vehicle based on the position
Characterized in that it comprises a dimension measuring means for a vehicle having a.

According to the present invention, even if the vehicle passing through the vehicle type determination area is any type of vehicle, the sensor box
From the detection patterns of the plurality of sensors
To determine the wheel center I, on the basis of the wheel center, said
The dimensions of each part of the vehicle are measured by the end detection device . This
The total length of the vehicle at the center of the front wheels or the length of the front end.
If, by this <br/> and measured as the sum of the front wheel center position to the rear end portion, reliably perform fractionation by vehicle form.

Further , a vehicle type discriminating apparatus according to claim 2 of the present invention.
The sensor box is installed at two locations at a predetermined interval in the traveling direction of the vehicle, and the front end detecting device of the vehicle is located at a predetermined position in front of the rear sensor box at a predetermined rear position with respect to the front sensor box. It is also possible to provide a rear end detection device for the vehicle, respectively. Then, it is possible to measure the front wheel center position or the length of the rear end at a position where the vehicle advances by a predetermined interval from the center position of the front wheel or the position where the length of the front end is measured. The installation distance of the detection device or the rear end detection device is reduced by the predetermined interval.

A vehicle type discriminating apparatus according to claim 3 of the present invention.
The vehicle type discrimination area allows the entry of a second vehicle during the measurement of the first vehicle, and detects the entry of the second vehicle by the vehicle end identification device, and The measurement of the size of the first vehicle is started.
After passing through the second vehicle, there is provided processing means for performing each step of moving measurement data of the second vehicle to measurement data of the first vehicle.

From this, even when two or more vehicles enter continuously, the vehicle end identification device detects the entry of the following vehicle and distinguishes the first vehicle from the second vehicle. Since the measurement of the first vehicle is performed, there is no need to temporarily wait for the following vehicle before the vehicle type determination area. Also, the storage capacity of the measurement data is required to be at most two, and an increase in the storage capacity of the computer is suppressed.

Furthermore, a vehicle type discrimination according to claim 4 of the present invention.
The apparatus has at least one of a height measuring device, a width measuring device, and a minimum ground height measuring device as the dimension measuring means. And the said apparatus enables the measurement of the vehicle width, height, and minimum ground clearance of a vehicle.

A vehicle type discriminating apparatus according to claim 5 of the present invention.
In one embodiment, the ground-level measurement device includes a sensor that detects a vehicle body portion projecting below a predetermined ground height and a sensor that detects only wheels on the same vertical line, and a detection pattern of the two sensors. A determination device for determining the minimum ground clearance of the vehicle from the vehicle.

In the present invention, two sensors are arranged on the same vertical line in the vehicle type discriminating area, and the two sensors
The presence / absence of a passing object in a part of the vehicle passing through the vehicle type determination area at the same position in the front-back direction and at a different height is detected. At this time, one sensor detects a vehicle body part projecting below a predetermined ground height, and the other sensor detects
Normally, by detecting only the wheel, which is the only installation portion of the vehicle, the determination device determines that the wheel portion is passing when receiving detection signals from both sensors, If a detection signal is received only from the other sensor, the vehicle determines that there is a portion below a predetermined minimum ground clearance. Also, in the process of passing the vehicle,
When the determination device receives a detection signal from both sensors and when it does not receive a detection signal from both sensors,
If a detection pattern having two detection states is received, it is determined that the vehicle has no portion below the predetermined minimum ground clearance.

[0022]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, the same or corresponding parts as those of the conventional example are denoted by the same reference numerals, and detailed description is omitted.

FIG. 1 shows a vehicle type determining area 27 of the vehicle type determining apparatus according to the first embodiment of the present invention. The vehicle type determination area 27 is often provided at the vehicle entrance 25 as shown in FIG. And the vehicle entrance by self-propelled
When the vehicle 28 enters the vehicle 25, the type of the vehicle is automatically determined in the vehicle type determination area 27, and the driver of the vehicle 28 receives the parking ticket and receives an instruction on the parking position to go to.
The vehicle type determination area 27 has various dimension measuring means for determining the form of the vehicle. In addition, the vehicle 28
Has a detecting means for detecting the center position of the front wheel 29 .
In the following description, the vehicle type determination area 27 indicates a range from a front end detection device 31 to a rear end detection device 32 described later.

In this embodiment, the center position of the front wheel 29 is detected.
A sensor box 30 for taking out is provided. Further, as the dimension measuring means, a front end detecting device 31 and a rear end detecting device 32 for detecting the length of the vehicle 28, a height measuring device 33, a width measuring device 34, a minimum ground height measuring device 35, etc. Having. Further, a vehicle detector 36 for detecting that the vehicle 28 is passing through the vehicle type determination area 27 may be provided.

Here, the sensor box 30 for detecting the center position of the front wheel 29 of the vehicle 28 will be described. The sensor box 30 has a plurality of transmission-type photoelectric sensors inside, and is installed at a height parallel to the traveling direction of the vehicle 28 and at a height capable of detecting only the wheels of the vehicle, as shown in FIGS. Have been. And especially the floor surface F where the tire touches the ground
It is desirable to provide it near L. Further, as shown in FIG. 2, the sensor boxes 30 are arranged to face each other, one of which is provided with a light emitter of a transmission type photoelectric sensor and the other of which is provided with a light receiver, and the optical axis S _{1 of} transmitted light emitted from the light emitter is provided. Is matched with the light receiver. 4 and 5 show this sensor box 30. FIG. As shown in the figure, the sensor box 30 according to the present embodiment incorporates five transmission-type photoelectric sensors 37 (hereinafter, simply referred to as sensors) therein (each sensor has 37a).
Each of them is attached via a sensor bracket 40 to a sensor mounting metal 39 fixed to the box body 38.

The sensor mounting metal 39 has a hole 39 in the longitudinal direction.
a, 39b and 39c are provided, and the sensor bracket 40 is provided.
Are fixed by inserting bolts 41 into the holes 39a, 39b, 39c. Therefore, by loosening the bolt 41, the longitudinal direction of the sensor box 30, that is, the vehicle 28
Can easily be adjusted in the traveling direction. As shown in FIG. 6, the sensor bracket 40 includes a first mounting plate 42, a second mounting plate 43 indicated by oblique lines rising rightward, and a third mounting plate 44 indicated by oblique lines rising leftward. Then, a space between the first and second mounting plates 42 and 43 is fixed by a vertical shaft bolt 46, and a space between the second and third mounting plates 43 and 44 is
It is fixed with a horizontal shaft bolt 45. Sensor bracket 40
A bolt 41 for fixing the sensor to the sensor mounting metal 39 is provided on the first mounting plate 42. The sensor 37 is fixed to the third mounting plate 44.

The second mounting plate 43 and the third mounting plate 44 are loosened by loosening the vertical shaft bolt 46 of the sensor bracket 40 and loosening one of the two adjustment bolts 47 and tightening the other.
Rotates about the vertical shaft bolt 46 in the left-right direction with respect to the first mounting plate 42. Therefore, the mounting angle of the sensor 37 in the left-right direction can be easily adjusted. Further, by loosening the horizontal shaft bolt 45 and loosening one of the two adjustment bolts 48 and tightening the other, the third mounting plate 44 is moved with respect to the second mounting plate 43 around the horizontal shaft bolt 45. Rotate up and down. Therefore, the vertical mounting angle of the sensor 37 can be easily adjusted. From the above structure,
The sensor box 30 can easily adjust the mounting position of the sensor 37, and can easily perform fine adjustment at the time of mounting and readjustment at the time of maintenance.

As shown in FIG. 4, the sensor 37 is fixed at one position substantially at the center of the sensor box 30 and at two positions equidistant from the center, for a total of five positions. . Here, the distance between the sensors 37a and 37e is LR, and the distance between the sensors 37b and 37d is LS. The method of setting LR and LS will be described later. As shown in FIGS. 4 and 5, the front of the sensor box 30 is covered with a cover 49, and an opening (not shown) for transmitting the light transmitted through the sensor 37 is provided at an appropriate position on the cover 49. .

FIG. 7 shows the outline 50 of the tire of the vehicle having the largest tire diameter and the outline of the vehicle having the smallest tire diameter within the range of vehicles that can be stored in the mechanical parking device according to the present invention. An outline 51 of the tire is shown. For reference, if it is not assumed that large vehicles such as trucks will be stored, the maximum tire diameter is φ750 mm and the minimum tire diameter is φ
Set to 570 mm. Here, a method for determining the distances LR and LS will be described. The distance LR is such that the sensor 37a and the sensor 37e are inscribed in the outline 50 of the tire having the largest diameter, that is, the tire having the largest diameter is in the sensor box.
When passing through 30, the setting is made such that the moment when the light transmitted through the sensor 37a and the sensor 37e is simultaneously blocked is generated. Further, the distance LS is set so that the sensors 37b and 37d circumscribe the outer line 51 of the tire having the smallest diameter, that is, when the tire having the smallest diameter passes through the sensor box 30, light transmitted through the sensors 37b and 37d is simultaneously emitted. The setting is made such that a moment when light is not blocked occurs.

Next, based on FIG. 1 and FIG.
A method for detecting the center position of the front wheel 29 will be described. In FIG. 8, between the outline 50 of the tire having the maximum diameter and the outline 51 of the tire having the minimum diameter, the outline 52 of the medium-large tire, the outline 53 of the medium-diameter tire, A tire outline 54 is illustrated. The sensors 37 a to 37 a when these five types of tires pass through the sensor box 30.
e shows the respective detection patterns. In FIG. 8, the light-shielded sensor 37 is indicated by a black circle, and the light-shielded sensor 37 is indicated by a white circle. 8 (a), the reference numerals of the sensors 37a to 37e are shown, but in FIG.
8B to 8E, the same reference numerals are assigned to the sensors from left to right in the figure.

First, when the tire having the largest diameter passes,
As shown in FIG. 8A, there is a moment when the central sensor 37c is shielded from light and at the same time all other sensors are shielded from light.
When this light-shielding pattern is detected, the determination device provided in the central processing unit detects the center position of the front wheel and the sensor box 30.
Is determined to be the same as the center position. That is, the center position of the front wheel 29 having the tire with the largest diameter can be specified.

When the tire having the smallest diameter passes, the tire shown in FIG.
As shown in (e), there is a moment when only the central sensor 37c is shielded from light and at the same time, all other sensors are not shielded from light. When this light-shielding pattern is detected, the determination device provided in the central processing unit determines that the center position of the front wheel matches the center position of the sensor box 30. That is, the center position of the front wheel 29 having the smallest diameter tire can be specified.

When a medium-sized tire passes, FIG.
As shown in (c), there is a moment when the sensor 37c at the center is shielded and the sensors 37b and 37d are shielded at the same time. When this light-shielding pattern is detected, the determination device provided in the central processing unit determines that the center position of the front wheel matches the center position of the sensor box 30. That is, the center position of the front wheel 29 having the middle-diameter tire can be specified.

Also, when a medium and large diameter tire passes,
As shown in FIG. 8B, the sensor 37c at the center is shielded from light, and the sensors 37b and 37d are shielded from light at the same time.
There is a moment when one of 37a and 37e is shielded from light. When this light-shielding pattern is detected, the determination device provided in the central processing unit determines that the center position of the front wheel matches the center position of the sensor box 30. By the way, between the actual front wheel center position when the light-shielding pattern is detected and the center position of the sensor box 30, the relationship between the interval between the sensors 37a and 37b or the sensors 37d and 37e and the radius of curvature of the tire outer shape. Is determined, the experimental results of the applicants, this deviation is contained in about ten and several millimeters, it is known that in actual use is within the tolerance range . Therefore, the center position of the front wheel 29 having the middle and large diameter tire can be specified within the range of the allowable error.

Further, as shown in FIG. 8 (d), when a small or medium diameter tire passes, there is a moment when the central sensor 37c is shielded and at the same time, one of the sensors 37b and 37d is shielded. The light-shielding pattern is detected, and the determination device provided in the central processing unit determines that the center position of the front wheel matches the center position of the sensor box 30. Also in this case, there is a slight deviation between the actual front wheel center position and the center position of the sensor box 30, but FIG.
As in the example of (b), it has been found that there is no problem in actual use. Therefore, the center position of the front wheel 29 having the small and medium diameter tire can be specified within the range of the allowable error.

As described above, the center position of the front wheels 29 having tires of various diameters can be specified within an error range that is practically acceptable. By the way, in the present embodiment, as the dimension measuring means of the vehicle 28 which can be interlocked with the detection signal of the sensor box 30,
The front-end detection device 31 and the rear-end detection device 32 that detect the length of are set. Here, the front / rear end detection devices 31 and 32 will be described based on FIGS. 1, 2 and 9.

As shown in FIG. 9, the front end detection device 31 has area sensors 56 and 57 in which a plurality of transmission-type photoelectric sensors are arranged in cascade in a box 55. Then, as shown in FIG. 1, the box 55 is arranged at a predetermined position in front of the sensor box 30. At this time, the distances from the center position of the sensor box 30 to the area sensors 56 and 57 are defined as L ₄ and L ₅ . Further, opposed s husband box 55 as shown in FIG. 2, a projector of the transmission type photoelectric sensor on one and the other to place the light receiver, the light strip S ₂ of transmitted light emitted from the projector to the photoreceiver Are matched.
Further, similarly, the rear end detection device 32 also has area sensors 59, 60, 61 in which a plurality of transmission type photoelectric sensors are arranged in tandem inside the box 58, and at a predetermined position behind the sensor box 30, A pair of boxes 58 is arranged. At this time, the area sensor 59,
The distances to 60 and 61 are defined as L ₁ , L ₂ and L ₃ .

When the vehicle 28 passes through the vehicle type discrimination area 27 and the center position of the front wheel 29 is detected by the sensor box 30, the area sensors 56, 57 of the front / rear end detection devices 31, 32, It is detected whether or not the transmitted lights 59, 60 and 61 are blocked by the vehicle body of the vehicle 28. The front end sensing apparatus 31, the length from the center position of the front wheel 29 to the front end portion of the vehicle 28, L ₄ or less, between L ₄ of L _5, be fractionated to the length of the L ₅ than three it can. Further, the rear end detecting device 32, the length from the center position of the front wheel 29 to the rear end of the vehicle 28, L ₃ or less, between L ₃ of L _2, between L ₂ of L _1, or L It can be separated into _one or more four lengths.

That is, in the embodiment of the present invention, the sensor box 30, the determination device for specifying the front wheel center position from the light shielding pattern of the sensor box 30, and the front / rear end detection devices 31, 32 The length of the vehicle 28 can be measured, and the vehicle can be separated from the measured value.

In this embodiment, a height measuring device 33 of the vehicle 28 is provided in the vehicle type determining area 27. Here, the height measuring device 33 will be described with reference to FIGS. As shown in FIG. 1, the height measuring apparatus 33, the interior of the box 62, floor height FL from a predetermined height H ₁ and H ₂ position, transmission-type photoelectric sensor 63 and 64 (hereinafter, simply sensor ) Is arranged. Also, as shown in FIG. 3, the box 62 faces each other, one of which is provided with a projector of a transmission type photoelectric sensor, and the other is provided with a light receiver,
The optical axis S ₃ of the transmitted light emitted from the projector is made to coincide with the receiver. In the present embodiment, the sensor
63 and 64 are arranged substantially on the same line as the area sensor 59 of the rear end detection device 32. And when the vehicle 28 passes,
Presence of the blocking of transmitted light sensor 63, and, by the presence or absence of the blocking of the transmitted light sensor 64, the height of the vehicle 28, H ₁ or less, between H ₁ of H _2, H ₂ or more three high It becomes possible to separate them.

The vehicle type determination area 27 is provided with a width measuring device 34 using an ultrasonic sensor. As shown in FIG. 1, the width measuring device 34 is a box 58 of the rear end detecting device 32.
At a predetermined height (a height that can be detected for all types of vehicles within the range of vehicles that can be stored). Then, as shown in FIG. 3, two width measuring devices are arranged to face each other, and each transmits an ultrasonic wave SW toward the vehicle. And
As shown in FIG. 10, the distances B ₁ and B ₂ from the left and right width measuring devices 34 to the vehicle 28 are measured, and the sum of B ₁ and B ₂ is subtracted from the installation distance A of the left and right width measuring devices 34. ,vehicle
A vehicle width W of 28 can be obtained.

In the present embodiment, a minimum ground clearance measuring device 35 for the vehicle 28 is provided in the vehicle type determining area 27. Hereinafter, the minimum ground height measuring device 35 will be described with reference to FIGS. 1, 3 and 11.

As shown in FIG. 11, the minimum ground clearance measuring device 35
Inside of two transmission-type photoelectric sensor 65 and 66 (hereinafter, simply referred to. Sensor) have a sensor 65 to a height h ₁ which is capable of detecting only the wheels of the vehicle 28, the sensor 66 It is placed in the desired vehicle ground clearance h ₂ can be received into mechanical parking system. Moreover, both the sensors 65 and 66 are arranged on the same vertical line. Then, as shown in FIG. 3, the ground clearance measuring device 35 faces each other, one of which is provided with a light emitter of a transmission type photoelectric sensor and the other of which is provided with a light receiver, and the optical axis S _{4 of the} transmitted light emitted from the light emitter. , and to match the S ₅ to the receiver.
In the present embodiment, the sensors 65 and 66 of the minimum ground clearance measuring device 35 are arranged substantially on the same line as the area sensor 59 of the rear end detecting device 32. As shown in FIG. 11, the sensors 65 and 66 are covered by a case 67, and the front of the case 67 is covered by a cover 68. An opening (not shown) for transmitting the transmitted light of the sensors 65 and 66 is provided at an appropriate position of the cover 68.

Next, based on FIG. 1 and FIG.
The method of detecting the minimum ground clearance of the vehicle will be described. Vehicle 28
The vehicle approaches from the left side to the right side in FIG. 1 and passes in front of the ground clearance measuring device 35. At this time, the entry of the vehicle 28 into the vehicle type determination area 27 is detected by, for example, the area sensor 59 of the rear end detection device 32. And the only one in vehicle 28
When the front wheel 29 or the rear wheel 69, which is a ground contact portion, passes in front of the minimum ground clearance measuring device 35, the floor F shown in FIG.
A sensor 65 provided at a height h ₁ from L and a height h ₂
The transmitted light S ₄ , S _{5 of} the sensor 66 provided in FIG.
Is shielded. That is, when both the sensors 65 and 66 detect a light-shielded pattern during the passage of the vehicle 28, the determination device provided in the central processing unit determines whether the front wheels 29
Alternatively, it is recognized that the rear wheel 69 is passing, and the detection data of the sensors 65 and 66 during this time is excluded from the determination of the minimum ground clearance.

Also, when the vehicle 28 is passing in front of the ground clearance measuring device 35 and other than when the front and rear wheels 29 and 69 are passing, the transmitted light S ₄ and S _{5 of the} sensors 65 and 66 are not used. If both are not shaded, the vehicle 28 does not have a vehicle body portion projecting below a predetermined ground clearance. Therefore, the sensor
Upon receiving a detection pattern having two detection states, one when receiving a light-shielding signal from both 65 and 66, and the other when receiving no light-shielding signal, the vehicle 28 satisfies a desired minimum ground clearance in the determination device provided in the central processing unit. Judge that

Also, when the vehicle 28 is passing through the minimum ground clearance measuring device 35 and other than when the front and rear wheels 29 and 69 are passing,
If only the sensor 66 is shielded from light, it means that the vehicle 28 has a portion below a predetermined minimum ground clearance.
Therefore, when only the sensor 66 receives the detection pattern for detecting light shielding, the determination device provided in the central processing unit detects the vehicle.
28 judges that the required minimum ground clearance is not satisfied.

If the vehicle 28 does not satisfy the desired minimum ground clearance, the movable frame 20, the power transmission roller 21, the driven roller 24 provided in the parking room 7, etc. of the traveling vehicle 5 described with reference to FIG. However, there is a possibility that the vehicle may hit a parking facility part slightly protruding from the floor surface. Therefore, the driver is provided with a flat parking space 26 (FIG. 28) provided independently of the mechanical parking device.
(See Reference).

As shown in FIGS. 1, 2 and 12, the vehicle type discrimination area 27 according to the present embodiment
A vehicle detector 36 for detecting that the vehicle 28 is passing may be provided. As the vehicle detector 36, a magnetic flux detection type buried type vehicle detector is used and is buried at a predetermined depth from the floor FL as shown in FIG.

As described above, in the present embodiment, the sensor 37 of the sensor box 30 and the front end detecting device 31
Area sensors 56, 57, area sensors 59, 60, 61 of the rear end detection device 32, sensors 63, 64 of the height measurement device 33, and sensors 65, 66 of the minimum ground height measurement device 35, respectively, are transmission type. A photoelectric sensor is used. By the way, as shown in FIG. 13, the transmitted light 71 emitted from the light emitter 70 of the transmission photoelectric sensor slightly spreads before reaching the light receiver 72.
Therefore, when the light emitters 70 and the light receivers 72 are arranged side by side, even the transmitted light emitted from the light emitter paired with the adjacent light receiver is detected, which causes erroneous detection. Therefore, when two or more light receivers 72 are arranged, the light emitter 70
And the light receiver 72 are alternately arranged to prevent erroneous detection with the adjacent transmission type photoelectric sensor. For example, in the sensor box 30, the light emitters and the light receivers are alternately arranged by the sensors 37a to 37e shown in FIG. 7 to prevent erroneous detection between adjacent sensors.

Further, in the sensors 63 and 64 of the height measuring device 33 shown in FIG. 3, each of the sensors 63 and 64 is constituted by a combination of a light emitter 70 and a light receiver 72 as shown in FIG.
By irradiating transmitted light from both the left and right sides of the vehicle 28, a small projection detecting device with high sensitivity capable of detecting small projections such as an antenna can be provided. For reference, the results of experiments conducted by the present applicant show that each of the sensors 63 and 64 has only one set of the light emitter 70 and the light receiver 72.
The effective detection distance for the small protrusion was 2.5 m. However, when the sensors 63 and 64 are configured by a combination of the light emitter 70 and the light receiver 72, the effective detection distance can be extended to 5 m.

Now, a procedure for actually discriminating a vehicle by the vehicle type discriminating apparatus according to the first embodiment of the present invention will be described with reference to FIG. The vehicle 28 enters the vehicle type determination area 27 from the left side in FIG. (1) When the front end of the vehicle 28 blocks the transmitted light of the area sensor 59 of the rear end detection device 32, the central processing unit detects that the vehicle 28 has entered the vehicle type determination area 27. (2) The measurement of whether the minimum ground clearance of the vehicle 28 satisfies the desired minimum ground clearance is started by the minimum ground clearance measuring device 35. (3) At the same time, the height of the vehicle 28 is H
The measurement is started to determine which range is ₁ or less, between H ₁ and H ₂ , or between H ₂ and H ₂ . (4) At the same time, the measurement of the vehicle width by the width measuring device 34 is started. (5) When the front wheel 29 of the vehicle 28 passes through the sensor box 30, the center position of the front wheel 29 is detected. (6) When the center position of the front wheel 29 coincides with the center position of the sensor box 30, the front end detecting device 31 detects the front wheel 29.
Length from the center position to the front end of the vehicle 28 of L ₄ or less,
Between L ₄ of L _5, the measurement of whether the L ₅ or of any range. (7) At the same time, the rear end detecting device 32, the length from the center position of the front wheel 29 to the rear end of the vehicle 28 is L ₃ or less, between L ₃ of L _2, between L ₂ of L _1, or a measurement of whether the L ₁ or of any range. (8) Then, the length of the vehicle 28 is determined from the measurement results of (7) and (8).

By the above steps, the overall length and width of the vehicle 28,
Height and minimum ground clearance are measured. Then, guidance is performed to a unit, a parking room, or a parking space that is optimal for the form of the vehicle.

The operation and effect obtained from the first embodiment of the present invention having the above configuration are as follows. That is, the sensor box 30 provided in the vehicle type determination area 27
Of the vehicle front wheel 29 by a plurality of transmission type photoelectric sensors 37
Of the vehicle can be accurately measured, and the front and rear end detecting devices 31, 32 can accurately measure the entire length of the vehicle using the center position as a measurement reference. Front wheels 29 are always having portions even vehicle in any form, by the front wheel 29 and metrics, accurate models regardless vehicle form
A determination can be made. The vehicle type determination area 27 includes a height measuring device 33 using a transmission type photoelectric sensor, a minimum ground height measuring device 35, and a width measuring device 34 using an ultrasonic sensor. Of the vehicle width, height, and minimum ground clearance can be measured, and the form of the vehicle can be automatically determined in consideration of the measurement result of each measuring device.

The sensors 37 provided inside the sensor box 30 are attached to sensor attachments 39 fixed to the box body 38 via sensor brackets 40, respectively. Then, the sensor bracket 40 includes a first mounting plate 42,
It consists of a second mounting plate 43 and a third mounting plate 44, each of which is mounted so that its position can be adjusted, so that fine adjustment and maintenance at the time of installation are easy, and it is possible to change the setting of the wheel diameter to be detected. It can be easily handled.

As the fixed positions of the five sensors 37,
One at the center of the sensor box 30, two at the position inscribed in the outline 50 of the tire with the largest diameter, and the outline 51 of the tire with the smallest diameter
By arranging two at the position circumscribing the center, it is possible to accurately grasp the center position of the wheel having various diameters between the maximum diameter and the minimum diameter from the detection pattern of each sensor within the tolerance. Becomes Therefore, the measurement reference for measuring the entire length of the vehicle 28 by the front / rear end detection devices 31 and 32 can be accurately determined.

The minimum ground clearance measuring device 35 includes a sensor 66 for detecting a portion of the vehicle 28 projecting below a predetermined ground clearance.
And a sensor 65 for detecting only the wheels are arranged on the same vertical line, and when both the sensors 65 and 66 detect light shielding, it is determined that the front wheel 29 or the rear wheel 69 of the vehicle is passing and the sensor 65 If only 66 detects light blocking, it is determined that there is a portion of the vehicle 28 that does not satisfy the minimum ground clearance. Therefore, it is possible to automatically measure the minimum ground clearance with two sensors.

The height sensor 33 is composed of a combination of a light emitter 70 and a light receiver 72, and irradiates transmitted light from both the left and right sides of the vehicle to detect small projections such as antennas with high sensitivity. It is possible to further promote the automation of the vehicle type identification device.

Next, a vehicle type discriminating apparatus according to a second embodiment of the present invention will be described with reference to FIGS.
In the figure, the same or corresponding portions as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted.

The second embodiment makes it possible to improve the space efficiency of the vehicle type discrimination area 27 described in the first embodiment. Its features are shown in Fig. 14,
As shown in FIG. 15, in the vehicle type determination area 27, the sensor box 30 is moved at a predetermined interval X in the traveling direction of the vehicle.
The vehicle front end detecting device 31 is provided at a predetermined position in front of the rear sensor box 30 and the vehicle rear end detecting device 32 is provided at a predetermined rear position relative to the front sensor box 30 '.
, Respectively. 14 and 15 show the parking ticket issuing machine 7 provided at the end of the vehicle type determination area 27.
3, the entrance guidance display 74 and the gate 75 are shown respectively.

Here, the procedure from the actual discrimination of the vehicle to the guidance of the vehicle by the vehicle type discriminating apparatus according to the second embodiment will be described with reference to FIGS. First, the vehicle 28 enters the vehicle type determination area 27 from the left side in FIG. (1) The front end of the vehicle 28 blocks the transmitted light of the area sensor 59 of the rear end detection device 32, and the central processing unit detects that the vehicle 28 has entered the vehicle type determination area 27. (2) The measurement of whether the minimum ground clearance of the vehicle 28 satisfies the desired minimum ground clearance is started by the minimum ground clearance measuring device 35. (3) At the same time, the height of the vehicle 28 is H
The measurement is started to determine which range is ₁ or less, between H ₁ and H ₂ , or between H ₂ and H ₂ . (4) At the same time, the measurement of the vehicle width by the width measuring device 34 is started.

(5) As shown in FIG. 17, when the front wheel 29 of the vehicle 28 passes through the rear sensor box 30, the center position of the front wheel 29 is detected. (6) When the center position of the front wheel 29 coincides with the center position of the rear sensor box 30, the front end detecting device 31
The length from the center position of the front wheel 29 to the front end of the vehicle 28 is L ₄
Hereinafter, between L ₄ of L _5, the measurement of whether the L ₅ or of any range.

(7) The vehicle 28 advances further by a distance X,
As shown in 18, when the front wheel 29 of the vehicle 28 passes through the front sensor box 30 ', the center position of the front wheel 29 is detected. (8) When the center position of the front wheel 29 coincides with the center position of the front sensor box 30 ′, the length from the center position of the front wheel 29 to the rear end of the vehicle 28 is determined by the rear end detection device 32. there L ₃ or less, between L ₃ of L _2, between L ₂ of L _1, or the measurement of whether the L ₁ or of any range performed.

(9) Then, the total length of the vehicle 28 is determined from the measurement results in the steps (6) and (8). Also,
(2), (3), (4) measured in each step, the vehicle width, height, from the values of the minimum ground clearance comprehensively determine the form of the vehicle 28, the optimal unit for the vehicle 28, Determine the parking room or parking space.

(10) As shown in FIG. 19, the vehicle 28 further moves forward. During this time, the driver receives the parking ticket from the parking ticket issuing machine 73, and the course (unit to be advanced or Check the parking space). (11) Then, the gate 75 is opened, and the vehicle 28 runs by itself according to the supported route.

The operation and effect of the second embodiment having the above-described structure are as follows. The center position of the front sensor box 30 'which is a measurement reference point for measuring the rear end of the vehicle is as follows.
It moves forward by a distance X with respect to the center position of the rear sensor box 30 which is a measurement reference point for measuring the front end of the vehicle, and accordingly, the rear end detecting device 32 also moves forward by the distance X. It is provided at the position moved to. That is, the vehicle type determination area 27 can be shortened by X, which leads to effective use of the limited space. Others
The description of the same operation and effect as in the first embodiment is omitted here.

Next, a vehicle type discriminating apparatus according to a third embodiment of the present invention will be described with reference to FIGS. 16, 17 and FIGS. In the figure, the same or corresponding portions as those of the first and second embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the third embodiment, during the measurement of the first vehicle in the vehicle type determination area 27 described in the first and second embodiments, the second vehicle moves to the vehicle type determination area 27. This makes it possible to enter, and at the same time, to measure the dimensions of the second vehicle. The characteristic point is that when the second vehicle enters the vehicle type discrimination area 27, the rear end detection device 32 detects the entry of the second vehicle and starts measuring the dimensions of the second vehicle. After passing the first vehicle in the vehicle type discrimination area,
Another object of the present invention is to provide a processing unit for performing each step of moving measurement data of the second vehicle to measurement data of the first vehicle.

This processing means is provided in a central processing unit (not shown). Hereinafter, the third embodiment will be described based on the vehicle type determination area described in the second embodiment. The flow of the vehicle type determination process performed by the processing means will be described with reference to FIG. FIG. 16, FIG.
The state of the vehicle type determination area 27 in each step will be described with reference to FIG. 17, FIG. 21 and FIG.

As shown in FIG. 16, the front end of the first vehicle 28 blocks the light transmitted through the area sensor 59 of the rear end detection device 32, and the central processing unit determines that the vehicle 28 is in the vehicle type determination area 27. Detecting the entry, the first measurement is started. Then, the minimum ground clearance, the height, and the vehicle width are measured as in the second embodiment. Further, as shown in FIG.
When the front wheel 29 passes through the sensor box 30, the center position of the front wheel 29 is detected, and the length from the center position of the front wheel 29 to the front end of the vehicle 28 is measured by the front end detection device 31 (see FIG.
20 steps (I)).

[0070] Incidentally, a length from the front wheel 29 of the first unit of the vehicle 28 to the rear end is shorter than L _1, as shown in FIG. 21, the front wheel 29 coincides with the front of the sensor box 30 ' Previously, the rear end of the vehicle 28 passed the area sensor 59, and when the front wheels 29 matched the front sensor box 30 ',
The second vehicle 28 'can enter the vehicle type determination area 27. Further, when the length from the front wheel 29 of the vehicle 28 to the rear end portion is L ₁ or more, even if the front wheel 29 coincides with the front of the sensor box 30 ', rear end area sensor of the vehicle 28
The second vehicle 28 'cannot enter the vehicle type discrimination area 27 without passing through 59. Therefore, the processing means includes:
It is monitored whether or not the rear end of the second vehicle 28 has passed the area sensor 59 (step (II)).

In the above case, when the vehicle detector 36 and the front sensor box 30 'simultaneously detect, the rear end detecting device 32 detects the distance from the center position of the front wheel 29 to the rear end of the vehicle 28. Measure (Step (V)), the first vehicle
The measurement of 28 is completed (step (VI)).

In the above case, before the front wheel 29 of the first vehicle 28 coincides with the front sensor box 30 'in step (II), the rear end of the first vehicle 28 59
It detects that the vehicle has passed. Here, the vehicle type determination area 27
The entry of the second vehicle 28 'into the vehicle is monitored by the area sensor 59 (step (III)). The entry of the second vehicle 28 '
When the vehicle detector 36 and the front sensor box 30 'simultaneously detect the first vehicle 28 without detecting the area sensor 59, the rear end detecting device 32 detects the vehicle from the center position of the front wheel 29. Measure the length to the rear end of the vehicle 28 (step (V)), and finish the measurement of the first vehicle 28 (step (V)).
(VI)).

In the above case, step (I
II), the area sensor 59 detects the entry of the second vehicle 28 '.
Is detected, the height measurement by the height measurement device 33, the measurement of the vehicle width by the width measurement device 34, and the measurement of the minimum ground clearance by the minimum ground clearance measurement device 35 for the second vehicle 28 ' Start. At this time, when the vehicle detector 36 and the front sensor box 30 'are simultaneously detecting the first vehicle 28, the measurement data of the height, vehicle width, and minimum ground clearance that are currently being measured are displayed. The processing means recognizes and stores the second vehicle 28 '. Further, the length from the center position of the front wheel 29 of the first vehicle 28 to the rear end is measured by the rear end detecting device 32 (step (V)).
The measurement of the second vehicle 28 ends (step (VI)).

In any case, when the measurement of the first vehicle 28 is completed in step (VI), a parking ticket is issued from the parking ticket issuing machine 73 to the first vehicle 28,
The route is displayed on the entrance guidance display 74. As shown in FIG. 22, the driver of the first vehicle 28 receives the parking ticket, confirms the course, and proceeds to the gate 75. Here, the processing device checks whether or not the first vehicle 28 has passed the gate 75 (step (VII)).

When it is confirmed that the vehicle 28 has passed through the gate,
Further, the processing device checks whether or not the second vehicle 28 'has been detected (step (VIII)). And 2
If the measurement of the second vehicle has not been performed, the measurement process for all vehicle dimensions ends. Also, the second vehicle 28 '
If the measurement of the first vehicle has been started, the measurement data of the second vehicle is carried forward as the measurement data of the first vehicle.
Recognizing the first vehicle 28 'as the first vehicle 28,
Return to (II) and continue measurement.

The operation and effect obtained from the third embodiment of the present invention having the above structure are as follows. In processing means, the first vehicle 28 entering the vehicle type determination area 27
Is monitored by the area sensor 59 of the rear end detecting device 32 to recognize that the rear end of the first vehicle 28 has passed. Further, when the area sensor 59 detects the passage of the second vehicle 28 'again, if the vehicle detector 36 and the front sensor box 30' detect the first vehicle 28 simultaneously,
It is determined that the second vehicle 28 'has been detected. In other words, even when vehicles enter the vehicle type discrimination area 27 continuously, the processing device identifies the first vehicle 28 and the second vehicle 28 ', and performs measurement of both vehicles in parallel. It is possible to do it. Therefore, the vehicle can be efficiently discriminated without having the following vehicle temporarily wait before the vehicle type discrimination area. The first vehicle 28
When the vehicle passes through the gate 75, the measurement data of the second vehicle is advanced as the measurement data of the first vehicle, and this is repeated even if a plurality of vehicles enter continuously, so that the storage capacity of the measurement data is increased. Needs to be at most two, and it is possible to suppress an increase in the storage capacity of the processing device. In addition, description of the same operation and effect as those of the first and second embodiments will be omitted.

Next, a vehicle type discriminating apparatus according to a fourth embodiment of the present invention will be described with reference to FIGS. 1, 2, 10 and 23. In the figure, the same or corresponding parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description is omitted.

In the fourth embodiment, the accuracy of measuring the vehicle width of the width measuring device 34 (see FIGS. 1 and 2) using an ultrasonic sensor is improved. The characteristic point is that the characteristic of the ultrasonic sensor that the detection distance changes according to the relative speed with the object to be measured is taken into consideration, and a predetermined correction value corresponding to the speed of the vehicle is added to the value measured by the ultrasonic sensor. The vehicle width is determined.

As shown in FIG. 1, the width measuring device 34 is provided in the box 58 of the rear end detecting device 32, and as shown in FIG. An ultrasonic SW is transmitted to the user. Then, as shown in FIG. 10, distances B ₁ and B from the left and right width measuring devices 34 to the vehicle 28 are obtained.
₂ and subtracting the sum of B ₁ and B ₂ from the installation distance A of the left and right width measuring devices 34, the vehicle width W of the vehicle 28 is obtained.
Is what you want.

However, as shown in FIG.
As the speed at which the vehicle 28 enters the vehicle 34 increases, the difference between the actual vehicle width and the vehicle width W obtained by the width measuring device 34 tends to increase (the measured value becomes smaller). Further, white circles and black circles shown in FIG. 23 indicate vehicles of different forms, but it can be seen that the tendency of the error differs depending on the form of the vehicle. For reference, in the experimental results performed by the present applicants, the variation width of the measured value when the approach speed condition is the same for the same vehicle type was about 30 mm. In addition, when the approach speed condition is not limited for the same model, the variation range of the measured value is about 60 mm
Met. In addition, the variation width of the measured values when the approach speed conditions were the same, regardless of the type of vehicle, was about 60 mm. Furthermore, the variation range of the measured values when the vehicle type and the approach speed conditions were not limited was about 80 mm.

Therefore, the vehicle width W obtained by the width measuring device 34
, It is necessary to add correction values corresponding to all vehicle configurations and approach speeds. Therefore, by collecting experimental data for a plurality of vehicle forms, determining a correction coefficient 76 as shown in FIG. 23, and creating a correction program based on the correction coefficient 76, the vehicle type determination area 27 (FIG. ), The variation width at a general speed (80 to 280 cm / sec) should be approximately -20 to +30 mm with respect to the actual vehicle width. Variations in this range do not adversely affect actual use.

As described above, according to the fourth embodiment of the present invention, in consideration of the characteristic of the ultrasonic sensor that the detection distance changes depending on the relative speed to the object to be measured, the ultrasonic sensor The vehicle width of the vehicle is determined by adding a predetermined correction value corresponding to the speed of the vehicle to the measured value of the vehicle, so that the ultrasonic sensor can accurately detect the vehicle width. The description of the other operations and effects similar to those of the first to third embodiments will be omitted.

[0083]

According to the present invention, the following effects are obtained. Vehicle type judgment according to claim 1 of the present invention
According to another device, even if the vehicle passing through the vehicle type determination area is any type of vehicle, a plurality of the sensor boxes
From the detection pattern of the sensor of the
The center is determined, and the end is detected based on the center of the wheel.
The device measures the dimensions of each part of the vehicle. At this time, the car
The total length of both wheels is the center of the front wheel or the length of the front end, and the front wheel
By measuring as the sum of the center position or the rear end
Therefore, it is possible to reliably perform the classification according to the vehicle type , and to reliably determine the vehicle type without being affected by the difference in the vehicle type . Therefore, the classification according to the vehicle type can be reliably performed, and the guidance to the storage section for each vehicle type can be accurately performed.

According to the present invention, there is provided a sensor box in which a plurality of sensors are arranged at a height parallel to the traveling direction of the vehicle and capable of detecting only the wheels of the vehicle. using a determination device for determining,
The wheel center of the vehicle is determined, and the dimensions of the vehicle are measured based on the wheel center . That is, it is possible to automatically and accurately determine the vehicle type by using a low-cost and easily controllable sensor.

A vehicle type discriminating apparatus according to claim 2 of the present invention.
According to the arrangement, the sensor box is installed at two locations at a predetermined interval in the traveling direction of the vehicle, and the front end detecting device of the vehicle is located at a predetermined position in front of the rear sensor box, and the rear end of the vehicle is located at a predetermined position in front of the front sensor box. By providing the vehicle rear end detection device at each position, the installation distance of the front end detection device or the rear end detection device can be reduced by the predetermined interval, and the vehicle type determination area can be reduced. This leads to effective use of the limited space.

A vehicle type discriminating apparatus according to claim 3 of the present invention.
According to the location, the second vehicle can enter the vehicle type determination area while the first vehicle is being measured, and the vehicle end detection device detects the entrance of the second vehicle, The measurement of the dimensions of the second vehicle is started. The processing means recognizes the passage of the first vehicle in the vehicle type discrimination area, and performs each step of moving the measurement data of the second vehicle to the measurement data of the first vehicle. Therefore, even when two or more vehicles enter continuously, the first vehicle and the second vehicle can be measured in parallel without temporarily waiting for the following vehicle before the vehicle type determination area. Therefore, it is possible to quickly and continuously determine the vehicle type of a plurality of vehicles. Further, after the first vehicle has passed, the second measurement data is moved up as the first measurement data, and when the vehicles are consecutive, the vehicle is newly recognized as the second vehicle. Therefore, the storage capacity of the measurement data only needs to be at most two, and an increase in the storage capacity of the computer can be suppressed.

A vehicle type discriminating apparatus according to claim 4 of the present invention.
According to the arrangement, as the dimension measuring means, a height measuring device,
At least one of the width measuring device and the minimum ground clearance measuring device
Since it has one, the width, height,
Measurement becomes possible, taking into account the measurement results of each measuring device,
The type of the vehicle can be automatically determined.

A vehicle type discriminating apparatus according to claim 5 of the present invention.
According to the above-mentioned arrangement, there is provided a minimum ground clearance measuring device in which two sensors are arranged on the same vertical line in a vehicle type discriminating area.
From the detection patterns of the two sensors, it is possible to discriminate between the wheel portion of the vehicle and the portion that does not satisfy the desired minimum ground clearance, and accurately measure the minimum ground clearance. This allows
Determine the vehicle where there is a possibility that hits the parking protruding slightly from the floor surface of the mechanical parking device, it is possible to perform guidance to a flat parking space provided independently of the mechanical parking device.

As described above, according to the present invention, the length, height, width, and minimum ground clearance of the vehicle can be measured by the sensor and the vehicle type can be determined, so that the vehicle type determination can be automated at low cost. It is possible to do.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle type identification area of a vehicle type identification device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along line CC of the vehicle type determination area shown in FIG.

FIG. 3 is a cross-sectional view taken along line DD of the vehicle type determination area shown in FIG. 1;

4A and 4B are diagrams showing a sensor box of the vehicle type discriminating apparatus shown in FIG. 1, wherein FIG. 4A is a top view and FIG. 4B is a front view.

5 is a longitudinal sectional view of a sensor box of the vehicle type identification device shown in FIG.

6A and 6B are diagrams showing a sensor bracket used inside the sensor box shown in FIG. 4, wherein FIG.
(B) is a figure which shows a front, (c) is a figure which shows a side surface.

7 is a schematic diagram showing an arrangement of a transmission type photoelectric sensor provided inside a sensor box of the vehicle type identification device shown in FIG. 4;

8 is a schematic diagram showing a detection pattern of a sensor when detecting a center position of a wheel by a sensor box of the vehicle type identification device shown in FIG. 1. FIG.

9A and 9B are diagrams showing a front end detection device of the vehicle type identification device shown in FIG. 1, wherein FIG. 9A is a front view and FIG. 9B is a side view.

FIG. 10 is a schematic diagram showing a technique for detecting a vehicle width by the width measuring device of the vehicle type discriminating device shown in FIG. 1;

11 is a longitudinal sectional view showing a minimum ground clearance measuring device of the vehicle type identification device shown in FIG.

12 is a longitudinal sectional view showing a vehicle detector of the vehicle type discriminating apparatus shown in FIG.

FIG. 13 is a schematic diagram showing a method of arranging adjacent transmission-type photoelectric sensors.

FIG. 14 is a side view of a vehicle type identification device according to a second embodiment of the present invention.

FIG. 15 is a plan view of the vehicle type identification device shown in FIG.

FIG. 16 is a schematic diagram showing a state of a vehicle type determination area in a vehicle type determination process by the vehicle type determination device shown in FIG.

FIG. 17 is a schematic diagram of a vehicle type determination area showing a vehicle type determination process following FIG. 16;

FIG. 18 is a schematic diagram of a vehicle type identification area showing a vehicle type identification process following FIG. 17;

FIG. 19 is a schematic diagram of a vehicle type determination area showing a vehicle type determination process following FIG. 18;

FIG. 20 is a flowchart illustrating a vehicle type determination process of the vehicle type determination layer device according to the third embodiment of the present invention.

FIG. 21 is a schematic diagram showing a state of a vehicle type determination area in a vehicle type determination process of the vehicle type determination layer device according to the third embodiment of the present invention.

FIG. 22 is a schematic diagram of a vehicle type identification area showing a vehicle type identification process following FIG. 21;

FIG. 23 is a diagram showing a correction coefficient in a width measuring device of a vehicle type discriminating apparatus according to a fourth embodiment of the present invention.

FIG. 24 is a plan view showing a mechanical parking device.

25 is a sectional view taken along line AA of FIG. 24.

FIG. 26 is a sectional view taken along line BB of FIG. 24;

27 is an enlarged view of a traveling cart and a parking room of the mechanical parking device shown in FIG. 24.

FIG. 28 is a schematic diagram showing a parking lot including the mechanical parking device shown in FIG. 24.

[Explanation of symbols]

 27 Vehicle type identification area 28 Vehicle 29 Front wheel 30 Sensor box 31 Front end detection device 32 Rear end detection device 33 Height measurement device 34 Width measurement device 35 Minimum ground clearance measurement device

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Tetsuya Kanaumi 3-1 Okawa, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture Inside the Tokyu Vehicle Manufacturing Co., Ltd. (72) Inventor Tsuyoshi Kubota 3-1 Okawa, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture (56) References JP-A-6-119597 (JP, A) JP-A-7-166729 (JP, A) JP-A-59-43500 (JP, A) JP-A-2- 284298 (JP, A) JP-A-3-194698 (JP, A) JP-A-63-66696 (JP, A) JP-A-62-179099 (JP, A) (58) Fields investigated (Int. ⁷ , DB name) E04H 6/00 G08G 1/015

Claims (5)

(57) [Claims] 1. A vehicle type discrimination device of a mechanical parking device provided with a storage section according to a type of a vehicle, the vehicle type discrimination device having a vehicle type discrimination area through which a vehicle passes, wherein the vehicle type discrimination area includes :
Can detect only the wheels of the vehicle, parallel to the direction of travel
A sensor box in which a plurality of sensors are arranged at a height, and
Judgment to judge wheel center from detection patterns of multiple sensors
Detection means having a device and detection by the sensor box
The front and rear ends of the vehicle based on the wheel center position of the vehicle
Vehicle type discriminating apparatus characterized by comprising a size measuring unit of a vehicle having an end detection device for detecting a. 2. The sensor box is installed at two places at a predetermined interval in the traveling direction of the vehicle, and a front end detecting device of the vehicle is provided at a predetermined position in front of the rear sensor box, and at a predetermined rear position with respect to the front sensor box. A vehicle rear end detecting device is provided at each position.
Vehicle type discriminating apparatus according to 1. 3. The vehicle type discriminating area allows the entry of a second vehicle during measurement of the first vehicle, and detects the entry of the second vehicle by the vehicle end identification device. The measurement of the dimensions of the second vehicle is started, and further, after the passage of the first vehicle in the vehicle type determination area, the measurement data of the second vehicle is advanced to the measurement data of the first vehicle. vehicle type discriminating apparatus according to claim 1 or 2, characterized in that it has a processing means for performing. 4. A height measuring device as said dimension measuring means.
, Width measurement device and minimum ground clearance measurement device
4. The method according to claim 1, further comprising:
The vehicle type discriminating apparatus according to claim 1. 5. The minimum ground term measuring device, wherein a sensor for detecting a vehicle body portion projecting below a predetermined ground height and a sensor for detecting only wheels are arranged on the same vertical line, and 5. The vehicle according to claim 4, further comprising a determination device configured to determine a minimum ground clearance of the vehicle from the detection pattern.
Vehicle type identification device.