JPH0610525A - Sky parking facility - Google Patents

Abstract

PURPOSE:To replace cars between a movable floor and a fixed floor, and to improve the operationability and simplicity of a parking facility by transmitting ultrasonic waves over the movable floor, deciding the position of the movable floor by reflected waves and lifting and lowering and stopping the movable floor. CONSTITUTION:A movable floor 2 elevated and lowered at the positon of a lifting and lowering path 9 at a central section is hung down by a wound and suspended member 5 stretched around a block 4, a motor M is driven by the control of an ultrasonic sensor 3 and the member 5 is brought to a freely vertically movable state. The movable floor 2 is adjusted at the level of a fixed floor 1 under an empty state, and a pallet 6, on which a car is loaded, is slid from the movable floor 2 side to the fixed floor 1 side, and moved between the movable floor 2 and the fixed floor 1. An ultrasonic sensor 3 is set so that ultrasonic waves are transmitted properly to a reflecting plate 7 mounted at the end sections, etc., of the movable floor 2. Accordingly, the position of the movable floor 2 is decided, and the movable floor 2 is stopped at a desired position, thus preventing the generation of a stepped section between the movable floor 2 and the fixed floor 1, then properly replacing the cars.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-story parking apparatus of the type using a movable floor.

[0002]

2. Description of the Related Art As a multi-dimensional parking device of this type, a so-called elevator slide system as shown in FIG. 4 has been developed. In this conventional type, a movable floor 2e for mounting a vehicle is provided to be movable up and down on the side of a plurality of fixed floors 1 ... In a state where the heights of the floors 1 ... Are matched, the pallet 6 for mounting the vehicle is moved between the two so that the vehicle can be transferred. In the prior art, as means for raising and lowering the movable floor 2e, the movable floor 2e is suspended by a chain 5 or the like, and the speed of the chain 5 can be changed by changing the pole of the pole changer motor Me (4). Gokuwa or 12
I was allowed to wind it up. Further, as a means for aligning the movable floor 2e with the fixed floor 1, a proximity switch (not shown) that captures a change in the magnetic field caused by the magnetic substance passing through the magnetic field is used, and when a certain point passes, The pole of the pole changer motor Me is changed to reduce the speed and perform the alignment.

[0003]

However, in the above-mentioned conventional one, the presence of the vehicle on the movable floor 2e, that is, the weight change of the entire movable floor 2e causes the chain 5 and the like to expand and contract, so that the chain 5 There is a case where an error occurs in the stop position of the movable floor 2e due to a change in length of the movable floor 2e. On the other hand, the height setting when stopping the movable floor 2e requires relatively high accuracy, for example, movement of the pallet 6 becomes difficult unless it is within ± 2 cm with respect to the fixed floor 1. Therefore, conventionally, due to an error in the height setting when the movable floor 2e is stopped, it has been difficult to transfer the vehicle.

The present invention has been proposed in view of the above-mentioned points, and the movable floor can be stopped by accurately matching the height of the desired fixed floor, and the vehicle can be appropriately transferred between the two. It is an object of the present invention to provide a three-dimensional parking device that can be operated.

[0005]

A three-dimensional parking apparatus according to the present invention, which is proposed to achieve the above object, has a fixed floor for accommodating a vehicle, which is provided above and below the vehicle.
A movable floor for mounting a vehicle is provided so as to be able to move up and down, and a three-dimensional parking device configured so that vehicles can be transferred between the movable floor and a fixed floor. Equipped with ultrasonic distance measuring means for determining the position of the movable floor by measuring the time difference between the time when the wave is transmitted to the movable floor and the time when the reflected wave is received.
When it is determined that the movable floor has reached the position of the same height as the desired fixed floor, the rising or lowering of the movable floor is stopped.

According to a second aspect of the present invention, in the multi-level parking apparatus according to the first aspect, the ultrasonic transducer is provided at a position retracted from the ascending / descending position of the movable floor, The movable floor includes a reflection plate for reflecting the ultrasonic waves transmitted from the ultrasonic vibrator to the ultrasonic vibrator.

According to a third aspect of the present invention, in the three-dimensional parking apparatus according to the first or second aspect, the ultrasonic distance measuring means sets the movable floor to a desired fixed floor height in advance. A position that has a storage unit for storing the position data of the movable floor whose distance is measured when they match, and the position data of the movable floor determined by the ultrasonic distance measuring unit is stored in advance in the storage unit. When it matches the data, the movable floor is configured so as to be stopped from being raised or lowered.

According to a fourth aspect of the present invention, there is provided the multi-level parking apparatus according to any one of the first to third aspects, wherein the ultrasonic distance measuring means is a deceleration section for increasing or lowering the movable floor. When the position data of the movable floor determined by the ultrasonic distance measuring means reaches the deceleration section preset in the deceleration control setting unit, the deceleration control setting unit for setting It is configured such that the speed of raising or lowering the floor is reduced.

[0009]

In the three-dimensional parking apparatus according to the present invention having the above structure, the distance between the ultrasonic transducer and the movable floor is measured by the ultrasonic distance measuring means. When the position of the movable floor is properly determined and it is determined that the movable floor has reached the same height as the desired fixed floor, the movable floor is stopped at that time. Therefore, the stop height of the movable floor does not depend on the elongation of the chain or the like, and can be accurately matched with the desired fixed floor. The distance measuring means based on the time difference from the time of transmitting the ultrasonic wave to the time of receiving the reflected wave has a small distance measuring error and is capable of measuring a relatively short distance with extremely high accuracy.

In the multi-level parking apparatus according to the second aspect of the present invention, it is possible to avoid the ultrasonic vibrator from coming into contact with the movable floor, and there is no problem that the vertical movement of the movable floor is hindered. On the other hand, due to the fact that the ultrasonic transducer is retracted from the lifting / lowering position of the movable floor, even if the ultrasonic wave transmission angle is inclined with respect to the lifting / lowering operation direction of the movable floor, The transmitted ultrasonic waves can be appropriately reflected by the ultrasonic transducer by the reflector provided on the movable floor, and distance measurement on the movable floor can also be appropriately performed.

In the multi-level parking apparatus according to the present invention as defined in claim 3, the movable floor is preliminarily matched with the desired height of the fixed floor, and the position data of the movable floor at that time is stored in a predetermined storage means. By doing so, thereafter, when the same position data as the position data is obtained by the distance measuring means, that is, when the movable floor reaches the same height as the preset desired fixed floor height. , The movable floor can be stopped appropriately. Therefore, it is not necessary for the user to set and input the data of the position where the movable floor is desired to be stopped by key operation or the like.

In the multi-level parking apparatus according to the present invention as defined in claim 4, if the deceleration control setting section of the distance measuring means is set in advance with data for a section where the rising or lowering speed of the movable floor is to be decelerated, When the movable floor reaches the set section, it is decelerated. Therefore, when approaching the stop position of the movable floor, the movable floor can be decelerated to a slow speed state and then the movable floor can be stopped from being aligned, and the accuracy of the movable floor alignment can be further enhanced. On the other hand, in a section other than the desired deceleration section of the movable floor, the movable floor can be moved up and down at high speed, so that the waste of time required for the lifting operation of the movable floor can be eliminated.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram showing the overall schematic configuration of a multilevel parking apparatus according to the present invention. The three-dimensional parking apparatus shown in FIG. 1 includes a movable floor 2 that moves up and down at the position of a hoistway 9 formed in a central portion, a fixed floor 1 for accommodating vehicles that is provided on the left and right sides of the hoistway 9 in a plurality of steps, The ultrasonic sensor 3 is used for determining the position of the floor 2 and controlling the ascending / descending operation of the movable floor 2, and other components described later. Here, the movable floor 2 is suspended by a winding member 5 such as a chain or a wire wound around a pulley 4, and can be lifted and lowered by rotational driving of a motor M having a gear shifting function. The above multi-level parking device stops the movable floor 2 at the same height position as the fixed floor 1 in the empty state,
Pallet 6 loaded with vehicles T is moved from the movable floor 2 side to the fixed floor 1
The vehicle T can be transferred between the movable floor 2 and the desired fixed floor 1 by sliding it to the side, and the vehicle T can be stored and taken out.

Among the above, the ultrasonic sensor 3 is attached to the fixed frame 8, but is provided in a state of being retracted from the ascending / descending position of the movable floor 2 so as not to hinder the ascending / descending movement of the movable floor 2. . Further, the ultrasonic sensor 3 is mounted so as to be inclined so that ultrasonic waves can be appropriately transmitted to the reflection plate 7 mounted at an appropriate position such as the end of the movable floor 2. Has been done. Ultrasonic sensor 3
May be provided in the same number as the fixed floor 1 corresponding to each fixed floor 1, or only one may be provided at the uppermost position of the multi-story parking apparatus, and this ultrasonic sensor can move the fixed floor 1 to each fixed floor 1. The positioning control of the floor 2 may be performed, and either may be performed. The reflection plate 7 may be any member capable of reflecting ultrasonic waves, but preferably, a metal member or the like having good ultrasonic wave reflection efficiency is applied, and the transmitted ultrasonic waves are surely ultrasonic waves. The shape is, for example, L-shaped in cross section so that it can be reflected toward the sensor 3.

FIG. 2 is a block diagram showing an example of the hardware configuration of the ultrasonic sensor 3. This ultrasonic sensor 3
Is an ultrasonic transducer 30 for transmitting and receiving ultrasonic waves, an oscillator 31 for generating and transmitting an oscillating signal for causing the ultrasonic transducer 30 to generate ultrasonic vibration, and a wave transmission circuit 32. The ultrasonic transducer 30 is provided with an amplification circuit 33 and a detection circuit 34 for amplifying and detecting a received signal generated when the ultrasonic wave is received. In addition to them, a timer circuit 35, a storage unit 36, and a detection determination unit 38 connected to the deceleration control setting unit 37 are also provided. Detection judgment unit 3
Reference numeral 8 denotes the ultrasonic transducer 30 and the object to be measured (that is, movable) based on the time difference between the transmission timing of the ultrasonic wave from the ultrasonic transducer 30 and the reception timing of the reflected wave by the ultrasonic transducer 30. The distance between the floor 2 and the reflector 7) is determined.

For example, as shown by the solid line in FIG. 3, the storage unit 36 is arranged from the ultrasonic transducer 30 to the reflection plate 7 in a state where the movable floor 2 and the fixed floor 1 are leveled with each other. This is for preliminarily storing the value of the distance L0 when the distance measurement is performed. However, in the present invention, instead of the value of the distance L0 itself, the value of the time from the time of transmitting the ultrasonic wave to the time of receiving the ultrasonic wave corresponding to the distance L0 may be stored instead. When the distance to the reflection plate 7 becomes a value equal to the distance L0 previously stored in the storage unit 36 during the lifting operation of the movable floor 2, the detection determination unit 38 instructs the drive circuit of the motor M at that time. It is configured to send a control signal to instruct the motor drive to stop.

The deceleration control setting unit 37 is for inputting a set value for gradually decelerating the speed of the movable floor 2. That is, when the movable floor 2 starts to rise from a position lower than the predetermined fixed floor 1, the deceleration control setting unit 37 sets the movable floor 2 to L3 more than the fixed floor 1 as shown in FIG. When it is desired to reduce the ascending speed of the movable floor 2 each time the position reaches a position lower by L2 and L1, the distance values of L3 to L1 can be input. The detection determination unit 38 detects the ultrasonic wave from the ultrasonic transducer 30 and the reflection plate 7.
To cause the drive circuit of the motor M to decelerate the motor drive each time the distance measurement values up to the respective values of L3, L2, and L1 preset in the deceleration control setting unit 37 are reached. Is configured to be sent out.
The deceleration of the motor drive is configured to be performed not only when the movable floor 2 is raised, but also when the movable floor 2 is lowered to align with the fixed floor 1.

Next, a usage example of the multi-story parking apparatus having the above-mentioned structure,
Also, the operation will be described. First of all, when using
As shown by the solid line in FIG. 3, the movable floor 2 is set in advance so that it is flush with the fixed floor 1, and then the ultrasonic sensor 3 measures the distance. The value of the distance L0 from the ultrasonic transducer 30 of No. 3 to the reflector 7 or time data in place of it is stored in the storage unit 36. Further, when it is desired to decelerate when the movable floor 2 is stopped, a specific numerical value of the distance is input in advance to the deceleration control setting unit 37. As specific values, for example, L3 shown in FIG. 3 is 1 m, L2 is 50 cm, and L1 is 10 cm.
And it is sufficient.

Next, after the above setting, the motor M is actually
If the movable floor 2 is moved up and down by driving the
When the movable floor 2 exists at a position lower than the position of 3, the movable floor 2 rises at a relatively high speed. Then, when the movable floor 2 rises to the position A3 in the figure, the position of the movable floor 2 determined by the ultrasonic sensor 3 changes to the deceleration control setting unit 37.
Since it coincides with the position of L3 previously set to, the ultrasonic sensor 3 outputs a control signal for decelerating the motor M at this time. As a result, the motor M is decelerated, and the rising speed of the movable floor 2 is decreased. Furthermore, the movable floor 2 is then set to L which is previously set in the deceleration control setting unit 37.
Whenever the positions of A2 and A1 corresponding to the distances of 2 and L1 are reached, a control signal for decelerating the motor M is sent from the ultrasonic sensor 3 to the drive circuit of the motor M each time. Therefore, the rising speed of the movable floor 2 is decelerated as it rises to the areas between A2 and A1 and between A1 and A0.
It becomes a slow speed state.

When the movable floor 2 reaches the position A0, the distance between the ultrasonic sensor 3 and the reflection plate 7 becomes
When the distance L0 stored in the storage unit 36 of the ultrasonic sensor 3 in advance matches, a control signal to stop the operation of the motor M is transmitted from the ultrasonic sensor 3 to the drive circuit of the motor M at that time. It As a result, the movable floor 2 is stopped so as to be flush with the desired fixed floor 1, and thereafter the movable floor 2 is stopped.
Move the upper pallet 6 to the fixed floor 1 side smoothly,
Vehicles can be appropriately transferred. Movable floor 2
Immediately before the stop, the movable floor 2 is raised at a very low speed, so the movable floor 2 is stopped immediately, and the movable floor 2 is fixed due to the inertia (or moment of inertia) of the motor M. The risk of being stopped at a position considerably higher than 1 is also eliminated.

[0021]

As can be understood from the above description, according to the multi-story parking apparatus of the present invention described in claims 1 to 4, the movable floor is stopped based on the accurate position determination of the movable floor. Since it is possible to make it possible to accurately position the movable floor at the desired fixed floor height, the stop position of the movable floor will not be affected by the elongation of the chain or the like and will cause an error unlike the conventional case. You can As a result, there is an effect that a step can be prevented from being generated between the movable floor and the fixed floor, and the vehicles can be appropriately transferred without any trouble.

Particularly, according to the second aspect of the present invention, the ultrasonic transducer used as the distance measuring means does not interfere with the ascending / descending operation of the movable floor, and the distance measuring using ultrasonic waves is performed. Can be done properly and is practical.

Further, according to the present invention as set forth in claim 3, the movable floor can be moved to a desired position without the need to enter the specific data for specifying the stop position of the movable floor by a key operation. Since it can be stopped, its operability and handling are convenient.

Further, according to the present invention as set forth in claim 4, by lowering the ascending / descending speed before stopping the movable floor, the movable floor is stopped immediately when the movable floor reaches a desired height. Therefore, it is possible to more accurately stop the movable floor to a desired stop position, and when the movable floor is at a position far away from the stop position, the movable floor can be raised and lowered at a high speed, There is an advantage that the time required for moving and transferring vehicles can be shortened.

[Brief description of drawings]

FIG. 1 is a front view showing an overall schematic structure of a multi-level parking device according to the present invention.

FIG. 2 is a block diagram showing a hardware configuration of an ultrasonic sensor as an example of distance measuring means according to the present invention.

FIG. 3 is a main part explanatory view showing an operating state of the multi-story parking apparatus according to the present invention.

FIG. 4 is a front view showing an example of a conventional multilevel parking apparatus.

[Explanation of symbols]

 1 Fixed Floor 2 Movable Floor 3 Ultrasonic Sensor 6 Pallet 7 Reflector 30 Ultrasonic Transducer 36 Storage Unit 37 Deceleration Control Setting Unit 38 Detection Judgment Unit M Motor T Vehicle

Claims (4)

[Claims] 1. A movable floor for mounting a vehicle is provided to be movable up and down beside a fixed floor for accommodating a vehicle provided above and below, and vehicles can be transferred between the movable floor and the fixed floor. A three-dimensional parking device configured to be able to perform, by measuring the time difference between the ultrasonic wave being transmitted to the movable floor by the ultrasonic transducer and the reflected wave being received, Equipped with ultrasonic distance measuring means for determining the position, and when the distance measuring means determines that the movable floor has reached a position at the same height as the desired fixed floor, the movable floor is stopped from rising or lowering. A three-dimensional parking device characterized by being configured as described above. 2. The ultrasonic transducer according to claim 1, wherein:
The movable floor is provided at a position retracted from the ascending / descending operation position, and the movable floor is provided with a reflecting plate for reflecting the ultrasonic waves transmitted from the ultrasonic vibrator to the ultrasonic vibrator. A multi-level parking device that is characterized by 3. The ultrasonic distance measuring device according to claim 1 or 2, wherein the ultrasonic distance measuring means stores position data of the movable floor measured when the movable floor is matched with a desired fixed floor height in advance. When the position data of the movable floor, which has a storage unit and is determined by the ultrasonic distance measuring unit, matches the position data stored in advance in the storage unit, the raising or lowering of the movable floor is stopped. A multi-level parking device having the following structure. 4. The ultrasonic distance measuring device according to any one of claims 1 to 3, further comprising a deceleration control setting unit for setting a deceleration section of an ascending or descending speed of the movable floor. When the position data of the movable floor determined by the ultrasonic distance measuring means reaches a deceleration section preset in the deceleration control setting unit, the ascending or descending speed of the movable floor is decelerated. A multilevel parking device characterized by being configured.