JPH11161900A - Device for identifying vehicle and method for distributing vehicle in parking lot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle sort identifying device compacted so as to be suited to a parking lot and a vehicle distribution method for distributing each vehicle to its corresponding vehicle storing space in the parking lot based on the identification. SOLUTION: The device is provided with a start sensors 11, 12 for detecting the passage start and end of a vehicle, vehicle length judging sensors 13 to 23, vehicle height judging sensors 24, 25, and a vehicle width measuring sensor 28. Plural sorts of vehicle storing spaces classified by prescribed long and short length, prescribed high and low height and prescribed wide and narrow width are formed, respective sensors are arranged before and after a detecting position corresponding to classification of respective length, height and width and the vehicle distribution method for the parking lot distributes each vehicle in a vehicle storing space corresponding to a largest discrimination value out of the discrimination values of respective sensors.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-contact type sensor provided at a predetermined detection location in a parking lot having a large or small vehicle storage space, and the sensor passes through the detection location. The present invention relates to a vehicle discriminating apparatus for a parking lot that measures the size of a vehicle to be used and discriminates the size of the vehicle, and a vehicle distribution method in a parking lot that distributes the vehicle to a vehicle storage space based on the discrimination.

[0002]

2. Description of the Related Art In general, a vehicle type discriminating device for automatically discriminating a vehicle type is installed at a toll booth where a toll is collected on a toll road or a parking lot, thereby saving labor and increasing the efficiency of collection work. It has been known.

[0003] This type of vehicle type discriminating apparatus is disclosed in, for example, Japanese Patent Application Laid-Open No. Hei 8
As disclosed in U.S. Pat. No. 2,730,091, a large number of sensors for determining the wheel, length and height of a passing vehicle are provided at a predetermined detection location, and the type of the vehicle is determined by these sensors.

Further, as a vehicle type discriminating apparatus installed at a tollgate on a toll road, for example, Japanese Patent Application Laid-Open No. 8-235487.
Nos. 8-235488, 9-62982, 9
One described in -190594 has also been proposed.

[0005] In these vehicle type discriminating apparatuses, generally, a large number of sensors are provided at equal intervals along the length of a large vehicle, a CCD camera is additionally provided, and a sensor of the vehicle is measured. Also employs an optical triangulation method and sophisticated and complicated detection control means.

[0006]

Recently, large-scale parking lots have been found. In such parking lots, a plurality of large and small vehicle storage spaces (parking spaces) are provided for mini vehicles, ordinary vehicles, and large vehicles to thereby improve vehicle storage efficiency. And
In particular, since there are many vehicles coming on holidays, it is necessary to quickly and accurately determine the size of each vehicle and guide the vehicle to a vehicle storage space of an appropriate size.

It is conceivable to divert the above-described vehicle type discriminating device in response to such a request. However, since the above-mentioned vehicle discriminating device aims at accurately discriminating vehicles of various sizes, the devices and control means are large, and it is difficult to apply them to a parking lot immediately. Not a good idea.

Therefore, the present invention basically provides a compact vehicle type discriminating apparatus adapted to a parking lot using the non-contact type sensors of the above-described vehicle type discriminating apparatus, and a vehicle storage apparatus based on the discrimination. The present invention proposes a vehicle distribution method in a parking lot in which the vehicles are allocated to a space.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a non-contact type sensor is provided at a predetermined detection location in a parking lot having large and small vehicle storage spaces, and the detection location is determined by the sensor. In the vehicle identification device of the parking lot that measures the size of the vehicle passing through and determines the size of the vehicle,
An activation sensor for detecting the start and end of passage of the vehicle,
A vehicle length determining sensor disposed in the vehicle passing direction with the starting sensor as a starting point; a vehicle height determining sensor and a vehicle width measuring sensor disposed in the vicinity of the starting sensor; Length L1, L2, height H
1, H2 and a plurality of types separated by widths W1 and W2 are provided, and each of the sensors is provided with the respective lengths L1, L2, heights H1, H2, and width at the detection location. W
This is a vehicle discriminating device in a parking lot having a configuration arranged before and after a location corresponding to the division of W1, W2.

Further, the present invention provides a non-contact type sensor provided at a predetermined detection location in a parking lot having large and small vehicle storage spaces, and a vehicle passing through the detection location by this sensor. Determining the size of the vehicle by measuring the size of the vehicle, and distributing the vehicle to the vehicle storage space based on the determination, in a vehicle distribution method of a parking lot, a start sensor for detecting the start and end of passage of the vehicle, A vehicle length determination sensor disposed in the vehicle passing direction with the start sensor as a starting point, a vehicle height determination sensor and a vehicle width measurement sensor disposed near the start sensor, and the vehicle storage space has a predetermined size. Length L1, L2, height H1, H2,
And a plurality of types separated by widths W1 and W2 are provided. The sensors are divided into the lengths L1 and L2, the heights H1 and H2, and the widths W1 and W2 at the detection locations. This is a vehicle distribution method in a parking lot that is arranged before and after a corresponding location, and further distributes the vehicle to a corresponding vehicle storage space in which the value determined by each sensor is the largest.

As described above, according to the present invention, each of the sensors has the length L1, L2, the height H1,
Since they are arranged before and after the location corresponding to the division of H2 and the widths W1 and W2, and are not arranged at other locations, that is, at locations where detection is unnecessary, the sensor can be effectively used.

Also, in the vehicle distribution, the vehicle is distributed to the vehicle storage space corresponding to the one with the largest discrimination value by each sensor, so that the distribution determination is simplified and the load on the control device and the like is reduced. It can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to FIGS.
A description will be given based on the specific example shown in FIG.

The vehicle discriminating apparatus according to the present embodiment is installed in a labor-saving parking lot, and the types of vehicles entering the parking lot are classified into four types: a mini car, a normal car, a large car and a non-standard car. An example in which the information is automatically determined and used for managing the parking lot will be described.

As shown in FIG. 1, this parking lot includes a passage 2 which is an entrance route to the parking lot 1, a first vehicle discriminating device 10 'installed at the start side of the passage 2, and a The second vehicle discriminating device 10 installed at the end of the second vehicle discriminating device 2 and an unoccupied vehicle that is disposed at a location near the second vehicle discriminating device 10 and is not shown, It is composed of an instruction device for instructing a state, a parking place, and the like, and elevator parking facilities 5 and 5 that are classified according to the type of vehicle, and are arranged efficiently for easy entry / exit.

These vehicle discriminating devices 10, 1
Based on 0 ', the four types of vehicles passing through the passage 2 are automatically determined and used for managing the parking lot 1.

The first vehicle discriminating apparatus 10 ′ is for eliminating a vehicle that is too large and cannot be stored in the parking facility 5, so to speak, that is out of standard. Also, this passage 2
The first vehicle discriminating device 1 cannot be driven from the beginning.
Since the vehicle cannot pass through 0 ', the first vehicle discriminating device 10' is not provided with a vehicle width measuring sensor described later. The first vehicle discriminating device 10 'is different from the second vehicle discriminating device 10' except that the vehicle width measuring sensor is not provided.
Therefore, the second vehicle discriminating apparatus 10 will be described below, and the description of the first vehicle discriminating apparatus 10 'will be omitted.

In the present embodiment, the parking facility 5 is of an elevator type, as described above, and has three different vehicle storage spaces 51, 52, 5 for a minicar, a normal car, and a large car.
3 is provided.

These vehicle storage spaces have a vehicle length of 340
0mm or less, vehicle height 1550mm or less, vehicle width 1850mm
Vehicle storage space 51 for the following mini vehicles, vehicle length 340
0-5050 mm, vehicle height 1550-2050 mm, vehicle width 1850-1900 mm, vehicle storage space 52 for ordinary vehicles, vehicle length 5050-5300 mm, vehicle height 1550-2
Three types of vehicle storage spaces 53 for large vehicles having a size of 050 mm and a width of 1900 to 2000 mm are prepared. still,
Vehicle length 5300mm, vehicle height 2050mm, vehicle width 2000m
Vehicles exceeding any of m are out of the standard and cannot be stored in the parking facility 5.

FIG. 2 to FIG.
As shown in the figure, the sensor is disposed in a sensor range A at a detection location set on the passage 2 in a substantially square shape in plan view, and is opposed to each other to detect the start and end of the passage of the vehicle into the sensor range A. Sensor 1 comprising a light emitting element and an optical sensor
With the start sensors 11 and 12 as starting points, vehicle length determination sensors 13 to 23 each including a plurality of light emitting elements and optical sensor groups arranged to face each other in the vehicle passing direction according to the length of the vehicle standard. And vehicle height determination sensors 24 and 25 each including a plurality of light emitting elements and optical sensor groups that are disposed to face each other according to the height of the vehicle standard in the vertical direction, and are disposed to face each other in the width direction of the sensor range A. And a vehicle width measuring sensor 28, which is an ultrasonic sensor capable of measuring a distance with a predetermined accuracy, and at least one sensor (light receiving element) group disposed on one side of the sensor range A is a single casing. 31.

In the sensors 11 to 25 composed of these light emitting elements and optical sensors, those denoted by reference numeral a in the drawings are optical sensors, and reference numeral b denotes light emitting elements.

The sensor range A has a width of at least 4
The length is set to about m and the length is set to about 6 m, and in the vicinity thereof, a sign for urging the driver to drive slowly is provided so that the driver can easily recognize the sign.

Each of the sensors 11 to 25 is a combination of a light emitting element and an optical sensor arranged on both sides of the sensor range A in the vehicle passing direction to determine the presence or absence of an object between the light emitting element and the optical sensor. It is a method to detect
In the determination sensor, only the arrangement position and the number of arrangements are different. First, a combination of a single light emitting element and an optical sensor will be described, and then different components in each activation / determination sensor will be described.

That is, in a combination of a single light-emitting element and a light sensor, the light-emitting element uses a light-emitting diode or the like to transmit a light beam having a predetermined wavelength and light emission intensity in the direction of the opposing light sensor. Is configured.

These light sensors output an off signal when the light beam from the light emitting element is interrupted by the body of the passing vehicle or the like, and output an on signal when the light reception is maintained. It is set to output.

First, the start sensors 11 and 12 are arranged at the entry end point of the vehicle in the sensor range A. When the start sensors 11 and 12 start detecting the front end portion of the vehicle body, the start sensors 11 and 12 enter the vehicle within the sensor range A. It is determined that the vehicle has passed and output a start signal to start the detection operation of another sensor, and the vehicle has moved and the detection of the rear end portion of the vehicle body has been completed, thereby completing the vehicle passage. And outputs an end signal to end the detection operation of another sensor.

The light emitting elements and the light sensors constituting the activation sensors 11 and 12 are arranged to face each other with a predetermined height difference therebetween, and the detection range is expanded in the vertical direction. It should be noted that the provision of the height difference and the opposing arrangement are the same in the case of the vehicle length determination sensors 13 to 23 described later.

In the case of a one-point arrangement of a fixed height by light-emitting elements / light sensors disposed horizontally opposed to each other, for example, in a vehicle where the position of the vehicle body is high and there is a space between the wheels and the vehicle body, In this case, the light beam from the light emitting element passes through the space, resulting in erroneous detection. However, according to the light emitting element / optical sensor which is disposed oppositely with such a height difference, the detection range is expanded to a predetermined width in the vertical direction, and, for example, a wheel or a chassis is detected, and erroneous detection is avoided. Thus, more reliable detection can be ensured.

In this embodiment, taking into account the average size of the vehicle body, one of the light-emitting elements is moved upward from the passage surface.
It is installed at a height of 300 mm, and the other optical sensor is
It is installed at a height of 472 mm.

In order to prevent erroneous detection due to reflected light or sunlight, the light sensor for receiving light is installed at a higher position with respect to the opposing light emitting element so that the sensor surface faces downward. .

The vehicle length determination sensors 13 to 23 are configured to determine the length of the passing vehicle when the vehicle falls within the sensor range A by the above-described activation sensors 11 and 12.

That is, the vehicle length determination sensors 13 to 23
Is composed of two groups of light emitting elements / optical sensors arranged at predetermined intervals along the vehicle passing direction with the starting sensors 11 and 12 as starting points, and these light emitting elements / optical sensors are , Are arranged facing each other on both sides of a passage surface orthogonal to the passing direction of the vehicle with an interval of 4000 mm therebetween.

The first group includes five light-emitting elements / light sensors (vehicle length determination sensors 13 to 15) provided to accurately determine whether the passing vehicle is the length of a mini vehicle that is a small vehicle. 17), and basically includes the activation sensor 1
1 is set as a starting point, and is arranged before and after a position 3400 mm away from the start sensor 11 in the vehicle passing direction.

That is, the vehicle length determination sensor 13 (first light emitting element / optical sensor) of the first group is disposed at a position 3200 mm away from the activation sensor 11 in the vehicle passing direction. 3300 mm, vehicle length determination sensor 15 is 3400 mm, vehicle length determination sensor 16 is 35
00 mm, the vehicle length determination sensor 17 is arranged at a position of 3600 mm.

In the case of these vehicle length judgment sensors 13 to 17, when the start sensors 11 and 12 detect the front end of the vehicle, the light receiving state of each sensor is, for example, off to the vehicle length judgment sensor 14 and the vehicle length judgment sensor 15 If ~ 17 is on,
The commander is a mini car. The vehicle length determination sensor 15
If the vehicle length is off and the vehicle length determination sensors 16 and 17 are on, the vehicle length corresponds to an ordinary vehicle.

The second group basically includes five sets of vehicle length determination sensors 18 to 22 provided for determining whether a passing vehicle is a normal vehicle or a large vehicle.
A last vehicle length determination sensor 23 is also provided, and is arranged with the starting sensor 11 as a starting point and a position 5050 mm away from the starting sensor 11 in the vehicle passing direction.

That is, the vehicle length determination sensor 18 of the second group receives four signals from the activation sensor 11 in the vehicle passing direction.
750 mm away from the vehicle length determination sensor 19
Is 4900 mm, the vehicle length judgment sensor 20 is 5050 mm,
The vehicle length determination sensor 21 is 5150 mm, and the vehicle length determination sensor 2
2 is arranged at a position of 5300 mm.

Further, the vehicle length judgment sensor 23 is 5450 mm.
It is located at the position.

In the case of these vehicle length judgment sensors 18 to 22, when the start sensors 11 and 12 detect the front end of the vehicle, the light receiving state of each sensor is, for example, off to the vehicle length judgment sensor 19 and the vehicle length judgment sensor 20 If the following is on, the commander corresponds to an ordinary car. If the vehicle length determination sensor 21 is off and the vehicle length determination sensor 22 and thereafter are on, the vehicle length corresponds to a large vehicle.

Further, when the vehicle length determination sensor 23 is off, the vehicle length is out of the standard.

In this example, as shown in FIG. 2, a vehicle height is high or a vehicle having tires exposed to the rear is mounted so that an accurate vehicle length can be detected. To
A vehicle length determination sensor 26 and a vehicle length determination sensor 27 are provided above portions corresponding to the vehicle length determination sensor 15 and the vehicle length determination sensor 20.

The vehicle height determination sensors 24 and 25 start the detection operation in accordance with the detection of the vehicle by the activation sensors 11 and 12 and perform the detection operation until the activation sensors 11 and 12 detect the end of the passage of the vehicle. It is configured to continue.

The vehicle height judging sensors 24 and 25 are installed at positions near the activation sensors 11 and 12 at right angles to the vehicle passing direction and at predetermined heights so as to be horizontally opposed to each other. And the combination of the first and second light emitting elements and the optical sensor.

The height position of the vehicle height determination sensor 24 is set to 1550 mm above the road surface on which the vehicle passes, and the vehicle height determination sensor 25 is set to 2050 mm.

In the case of these vehicle height determination sensors 24 and 25, the light receiving state of each sensor when the start sensors 11 and 12 detect the front end of the vehicle is, for example, the vehicle height determination sensors 24 and 25.
If both 25 are on, the vehicle height corresponds to a minicar. When the vehicle height determination sensor 24 is off and the vehicle height determination sensor 25 is on, the vehicle height corresponds to a normal vehicle and a large vehicle. If both the vehicle height determination sensors 24 and 25 are off, the vehicle height is out of the standard.

When the vehicle passing through is equipped with a retractable antenna such as a telescopic rod or the like, a predetermined height is set to prevent the height of the antenna from being mistaken for the vehicle height. The height data detected only for a short period may be cancelled.

The vehicle width measuring sensor 28, like the vehicle height judging sensors 24 and 25, starts its detecting operation in accordance with the detection of the vehicle by the starting sensors 11 and 12, and the starting sensor 1
The detection operation is configured to be continued until the passage end of the vehicle is detected by 1 and 12.

The vehicle width measuring sensor 28 is disposed at a position orthogonal to the passing direction of the vehicle and at the same height, and measures the distance from the sensor to the vehicle using ultrasonic waves. Of the ultrasonic sensor. This ultrasonic sensor is installed at a height of 600 mm from the passage surface. Further, the ultrasonic sensors are arranged to face each other on both sides of a passage surface orthogonal to the passing direction of the vehicle with an interval of 4000 mm.

Further, a relatively high-precision ultrasonic sensor capable of measuring a distance in units of 1 cm is used.
The vehicle width can be measured with similar accuracy.

That is, the distance from each ultrasonic sensor to the vehicle body is measured, and each distance is subtracted from the fixed base length between the sensors to determine the vehicle body width. I have. That is, for example, the larger the value of the distance data measured by both ultrasonic sensors, the narrower the vehicle width.

The maximum value among the measured vehicle width data is adopted and output from the vehicle width measurement sensor 28 as vehicle width data.

The data of the vehicle length, vehicle height, and vehicle width of the passing vehicle determined by the sensors are comprehensively determined.
The vehicle type is determined as the total data, transmitted to the computer of the comprehensive management system of the parking lot 1, and used for the parking lot management such as guidance of the determined vehicle to the parking facility 5.

Further, in the present invention, at the detection location, each sensor has the above-mentioned lengths L1, L2,..., Heights H1, H2, and widths W1, W2,. It is placed before and after the part corresponding to the division, and,
The vehicle is allocated to the vehicle storage space corresponding to the one having the largest discrimination value by each sensor.

For example, as shown in FIGS. 4 and 5, when the vehicle B is determined, the vehicle height is determined by the vehicle height determination sensors 24 and 25.
Are both on and correspond to a mini vehicle, while the vehicle length is off to the vehicle length determination sensor 21 and the vehicle length determination sensor 22 and thereafter are on and correspond to a large vehicle, Since the vehicle having the largest discrimination value, that is, a large vehicle, corresponds to the vehicle, the vehicle is allocated to the vehicle storage space of the large vehicle.

In the present embodiment, a dew condensation preventing device 3 for introducing outside air into the vehicle discriminating device 10 where the optical sensors of the respective measuring sensors are stored to prevent dew condensation on the light receiving surface and the like.
2 are provided.

As shown in FIG. 2, each optical sensor unit is provided with a protective glass in front of the light receiving surface to protect the optical sensor unit.

However, if a temperature difference occurs between the inside of the case and the outside of the case depending on the early morning or season, dew condensation occurs on the surface of the protective glass, and the dew impedes the light reception of the sensor. There have been inconveniences such as poor detection of the sensor and reduced performance.

Therefore, there is provided a dew condensation preventing device which eliminates the temperature difference between the inside and outside of the case to prevent the dew condensation on the protective glass surface and maintain the sensor performance.

That is, the dew condensation preventing device is provided at the outlet opening above the casing 31 and at a location near the outlet and inside the casing 31 and is rotated by a motor (not shown). And an outside air inlet provided at the other end with respect to the upper end of the casing 31. By the blowing operation of the rotating fan, outside air is introduced into the casing 31 from the outside air inlet. It discharges from the outlet.

Accordingly, since the outside air is always introduced into the sensor casing 31, the casing 31
The temperature difference between the inside and the outside is eliminated, and dew condensation that hinders the optical operation can be avoided, and the normal detection operation of the optical sensor can be ensured.

Next, the operation of the vehicle discriminating apparatus 10 will be described.

First, when the activation sensors 11 and 12 detect that the vehicle has fallen into the sensor range A, the sensors are activated and the detection operation is started.

When the vehicle starts entering the sensor range A, the vehicle length of the passing vehicle is determined by the vehicle length determination sensors 13 to 23.

As described above, when each detection light beam is detected to be blocked by the body of the passing vehicle,
The length of the passing vehicle is determined to be the predetermined length, and the vehicle length data is output.

Similarly, the vehicle height determination sensors 24 and 25 continue the detection operation from the start to the end of the passage of the vehicle, and output the maximum value among the detected values as vehicle height data.

Further, the vehicle width measuring sensor 28 continues the detecting operation from the start to the end of the passage of the vehicle, and outputs the maximum value among the detected values as vehicle width data.

As described above, according to the vehicle discriminating apparatus of this specific example, each sensor is arranged before and after each of the lengths and widths at the detection location. Since the sensor is not disposed at another location, that is, at a location where detection is unnecessary, the sensor can be effectively used.

In the vehicle distribution, the vehicle is distributed to the vehicle storage space corresponding to the vehicle having the largest discrimination value from each sensor. Therefore, the distribution determination is simplified, and the burden on the control device and the like is reduced. It can be reduced.

Further, since ultrasonic waves and light harmless to the human body are used as the non-contact type sensor, sufficient safety can be ensured, and the surrounding area is not electromagnetically contaminated and the environment is good. Can be maintained.

[0070]

As described above, according to the present invention, a non-contact type sensor is installed at a predetermined detection place in a parking lot having a large and small number of vehicle storage spaces, and the sensor is used for the non-contact type sensor. In a parking lot vehicle discriminating device that measures the size of a vehicle passing through the detection location and determines the size of the vehicle, a start sensor that detects the start and end of passing of the vehicle, and a vehicle passing the start sensor as a starting point. A vehicle length determination sensor disposed in the direction, a vehicle height determination sensor and a vehicle width measurement sensor disposed in the vicinity of the activation sensor,
The vehicle storage space is provided with a plurality of types which are divided into large and small predetermined lengths L1 and L2, heights H1 and H2, and widths W1 and W2. Said lengths L1, L2, heights H1, H2, and
This is a vehicle discriminating device in a parking lot having a configuration arranged before and after a location corresponding to the division of widths W1 and W2.

According to the present invention, a non-contact type sensor is provided by providing a predetermined detection location in a parking lot having large and small vehicle storage spaces, and a vehicle passing through the detection location by this sensor. Determining the size of the vehicle by measuring the size of the vehicle, and distributing the vehicle to the vehicle storage space based on the determination, in a vehicle distribution method of a parking lot, a start sensor for detecting the start and end of passage of the vehicle, A vehicle length determination sensor disposed in the vehicle passing direction with the start sensor as a starting point, a vehicle height determination sensor and a vehicle width measurement sensor disposed near the start sensor, and the vehicle storage space has a predetermined size. Length L1, L2, height H1, H2,
And a plurality of types separated by widths W1 and W2 are provided. The sensors are divided into the lengths L1 and L2, the heights H1 and H2, and the widths W1 and W2 at the detection locations. This is a vehicle distribution method in a parking lot that is arranged before and after a corresponding location, and further distributes the vehicle to a corresponding vehicle storage space in which the value determined by the sensor is the largest.

As described above, according to the present invention, each of the sensors has a length L1, L2, a height H1,
Since they are arranged before and after the location corresponding to the division of H2 and the widths W1 and W2, and are not arranged at other locations, that is, at locations where detection is unnecessary, the sensor can be effectively used.

Further, in the vehicle distribution, the vehicle is allocated to the vehicle storage space corresponding to the one having the largest discrimination value by each sensor, so that the distribution determination is simplified, and the burden on the control device and the like is reduced. It can be reduced.

[Brief description of the drawings]

FIG. 1 relates to a specific example of a vehicle discriminating device of the present invention, and is a schematic overall configuration diagram of a parking lot using the device.

FIG. 2 is an external perspective view showing a schematic configuration of a vehicle discrimination device according to the specific example.

FIG. 3 is a plan view showing an arrangement of each sensor in the vehicle discriminating apparatus of the present embodiment.

FIG. 4 is a cross-sectional view showing an arrangement of each sensor in the vehicle discriminating apparatus of the present example, and is opposed to a vehicle passing direction.

FIG. 5 is a side view showing an arrangement of each sensor in the vehicle discriminating apparatus of the present example, and is taken along a vehicle passing direction.

[Explanation of symbols]

 Reference Signs List 1 parking lot 2 entrance passage 5 parking facility 10 vehicle discriminating device 10 'vehicle discriminating device 11 starting sensor 12 starting sensor 13 vehicle length determining sensor 14 vehicle length determining sensor 15 vehicle length determining sensor 16 vehicle length determining sensor 17 vehicle length determining sensor 18 Vehicle length determination sensor 19 Vehicle length determination sensor 20 Vehicle length determination sensor 21 Vehicle length determination sensor 22 Vehicle length determination sensor 23 Vehicle length determination sensor 24 Vehicle height determination sensor 25 Vehicle height determination sensor 26 Vehicle length determination sensor 27 Vehicle length determination sensor 28 Vehicle width measurement sensor 31 Casing 32 Condensation prevention device A Sensor range B Automotive

Claims (8)

[Claims] 1. A non-contact type sensor is provided in a parking lot provided with a plurality of vehicle storage spaces of various sizes to measure a dimension of a vehicle passing through the detection location. In a vehicle identification device for a parking lot that determines the size of the vehicle, a start sensor that detects the start and end of passage of the vehicle, and a vehicle length determination sensor that is arranged in the vehicle passing direction with the start sensor as a starting point. A vehicle height determination sensor and a vehicle width measurement sensor arranged near the activation sensor; and the vehicle storage space has a predetermined length L1, L2, a height H1, H2, and a width W1,. A plurality of types separated by W2 are provided. Further, each of the sensors is provided at a position corresponding to each of the lengths L1, L2, the heights H1, H2, and the widths W1, W2 at the detection location. Before and after each Vehicle discrimination apparatus in parking, characterized in that it is location. 2. The vehicle length judging sensor and the vehicle height judging sensor include a plurality of light emitting elements and an optical sensor group, and the vehicle width measuring sensor includes a pair of ultrasonic sensors arranged to face each other in the vehicle width direction. The vehicle discriminating apparatus in a parking lot according to claim 1, wherein: 3. The vehicle in a parking lot according to claim 2, wherein the determination of the vehicle length by the vehicle length determination sensor is performed based on a light receiving state of each optical sensor when detecting the leading end of the vehicle by the activation sensor. Discriminator. 4. The method according to claim 1, wherein the determination of the vehicle height by the vehicle height determination sensor is performed based on a light receiving state of each optical sensor during a period when the vehicle is detected by the activation sensor, and is a maximum value determined during the period. 3. The vehicle discriminating device in a parking lot according to claim 2, wherein: 5. The vehicle width measurement by the vehicle width measurement sensor is calculated from the distance measurement from each sensor to the vehicle body by each ultrasonic sensor during the period when the vehicle is detected by the starting sensor, and during the period, 3. The vehicle discriminating apparatus in a parking lot according to claim 2, wherein the measured value is a maximum value. 6. The light-emitting device according to claim 2, wherein the plurality of light-emitting elements and the light sensor of the activation sensor, the vehicle length determination sensor, and the vehicle height determination sensor are arranged with a height difference therebetween. Vehicle discriminating device in parking lot. 7. The apparatus according to claim 2, further comprising a dew condensation preventing device that accommodates each of the sensors in a casing and ventilates at least a location where the light receiving sensor is stored.
The vehicle discriminating device in the parking lot described in the above. 8. A non-contact type sensor is provided in a parking lot having a plurality of types of vehicle storage spaces provided with a predetermined detection location, and the size of a vehicle passing through the detection location is measured by the sensor. And determining the size of the vehicle, and allocating the vehicle to the vehicle storage space based on the determination. A start sensor for detecting start and end of passage of the vehicle; A vehicle length determination sensor disposed in the vehicle passing direction, a vehicle height determination sensor and a vehicle width measurement sensor disposed near the activation sensor, and the vehicle storage space has a predetermined length L1, L2, heights H1 and H2, and widths W1 and W2 are provided. A plurality of types are provided.
1, L2, heights H1, H2, and widths W1, W2, respectively, are arranged before and after locations corresponding to the divisions. Further, the one having the largest discrimination value by each of the above-mentioned sensors is stored in the corresponding vehicle storage space. And a method of distributing the vehicles in a parking lot.