JPH045375A - Operation control method for three dimensional parking lot - Google Patents

Abstract

PURPOSE:To shorten the time for letting cars go in and out by arranging conveyers for storing cars in parallel and in the vertical direction, an elevator for letting car go in and out, an elevator for circulation, and conveyers for car delivery. CONSTITUTION:Conveyers 31 and 32 are provided for storing cars in parallel on parts of the first and second floors 23 and 24 in the underground of a parking space section 22c, and a elevator 33 for letting cars go in and out is provided in an entrance and exit space section 22a on one end side. In a space section 22b for circulation on the other side of the conveyers 31 and 32, a elevator 34 is provided for circulating cars, and elevating bases 35 and 36 are provided in the elevators 33 and 34 respectively. In addition, on the elevating bases 35 and 36, conveyers for delivery 37 and 38 are provided, and electric motors 39 and 40 for elevation are installed, and controllers for the operation of each motor are arranged. This constitution makes it possible to efficiently let cars go in and out.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for controlling the operation of a circulating multi-level parking lot using a conveyor device.

Conventional technology Conventionally, in multi-story parking lots using conveyor devices,
Cars were placed on pallets and transported to a designated parking floor, and then transported to a designated storage room by a traveling trolley provided at each parking floor.

Problems to be Solved by the Invention However, according to the above-mentioned conventional multi-storey parking lot, pallets are used, so the pallet must be transported to the entry/exit location every time a car enters or exits, which requires extra time for entry/exit operations. There was a problem that it required

For this reason, multi-story parking lots that do not use pallets have been proposed. This multi-level parking lot has storage conveyor devices that can store cars on the upper and lower parking floors, and an elevator device for entering and exiting cars is arranged at one end of each storage conveyor device. A circulation elevator device for circulating cars is placed at the other end.

By the way, in such a multi-story parking lot, the problem is how to efficiently move cars in and out of the conveyor device, that is, to store or carry them out.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an operation control method for a multi-story parking lot that can efficiently store or carry out cars on a conveyor device.

Means for Solving the Problems In order to solve the above problems, the operation control method for a multi-story parking lot of the present invention includes a storage conveyor device which is arranged in a plurality above and below so that a plurality of cars can be stored in parallel. , an entrance/exit elevator system that is placed at one end of these storage conveyor devices to allow cars to enter and exit, and a circulation elevator system that is placed at the other end of the storage conveyor device to circulate cars between the storage conveyor devices. an elevator device, a delivery conveyor device that is arranged on the elevator platform of each of the elevator devices and transfers cars to and from each of the storage elevator devices, a drive device for each of the elevator platforms, and a drive device for each of the elevator devices. In a multi-story parking lot that includes a drive device and an operation control device for each of the drive devices, when entering and exiting a car, the operation control device minimizes the time required for entering and exiting the car.
This is a method of controlling the operation of each drive device.

Effect: According to the above operation control method, the operation is controlled so that the time required for entering and exiting the vehicle is minimized, so that the entry and exit operations of the vehicle can be carried out efficiently.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 9.

First, the schematic configuration of a multi-level parking lot will be explained based on FIGS. 1 and 2.

The multi-story parking lot in this embodiment is, for example, provided underground, and includes an entry/exit room 21 above ground and a parking room 2 underground.
2, the lower part of the loading/unloading room 21 of the parking room 22 is an loading/unloading space 22a, and the opposite side is a circulation space 22b, and of course these rain spaces 22a,
The space between 22b and 22b is a parking space 22c.

The main structure of the multi-level parking lot will be explained below.

Above and below the parking space 22c, that is, the first basement floor (hereinafter referred to as
23 (hereinafter referred to as B1) and the second basement floor (hereinafter referred to as B2)
storage conveyor devices 31 and 32, each of which is equipped with a storage conveyor device 31 and 32 that can store four cars in parallel;
An entrance/exit elevator device 3 located inside the building for entering and exiting cars.
3, and a circulation elevator device 3 disposed within the circulation space 22b on the other end side of the storage conveyor device 31.32 to circulate cars between the storage conveyor devices 31.32.
4, and a lifting platform 35 of each of the elevator devices 33, 34.
36, each of the storage conveyor devices 3
1.32, a delivery conveyor device 37.38 that transfers cars to and from the motor vehicle 39.
40, electric motors 41 to 44 that drive each of the conveyor devices 3L32, an operation control device 45 that controls the operation of each of these electric motors 41 to 44, and a specified distance (not shown) of each of the storage conveyor devices 31 and 32 ( It consists of a phototube that detects the movement of one pitch (for example, 2,250 meters) and various sensors (not shown) to ensure safety.

The operation control device 45 is provided with a circuit breaker to protect against overcurrent, an electromagnetic contactor to control on/off of each motor, an inverter to control the current of the motor, a sequencer to control the entire device, etc. ing.

In addition, in this sequencer, by programming, there is an entry/exit judgment circuit (shown in the block diagram in Figure 4) that determines whether the car is entering or exiting the garage, and a circuit that determines the circulation direction of the car when it enters the garage. A warehousing circulation direction judgment circuit (shown in the block diagram in Fig. 5) determines whether the car rotates forward or reverse, and an outgoing circulation direction judgment circuit (6 (shown in the block diagram in Figure 7), a forward circulation operation circuit (shown in the block diagram in Figure 7) that rotates the circulation direction of the car in the forward direction, and a reverse circulation operation circuit (shown in the block diagram of Figure 7) that reverses the circulation direction of the car. (shown in the block diagram in the figure) is realized. Further, in the memory of this sequencer, the presence or absence of a car at each storage position is managed by the moving pitch of the conveyor device 31, 32 using the phototube and the elevation of the elevator platform 35, 36.

Next, the operation control method will be explained.

First, based on FIG. 3, an outline of the control flow of the entire device performed inside the sequencer will be explained.

First, the entry/exit judgment circuit determines whether the car is entering or leaving the garage. That is, in the case of warehousing, the warehousing circulation direction determination circuit determines whether the circulation direction is forward or reverse rotation, and in the case of warehousing, the outgoing circulation direction determination circuit determines whether the circulation direction is normal or reverse. Note that "normal rotation" refers to a clockwise direction (indicated by arrow A) in FIG. 2, and "reverse rotation" refers to a counterclockwise direction (indicated by arrow B) in FIG.

In the case of forward rotation, the forward rotation circulation operation circuit is activated, and in the case of reverse rotation, the reverse rotation circulation operation circuit is activated.

Then, it is determined whether the loading/unloading completion condition is satisfied or not, and if the condition is satisfied, the operation is ended, and if not, the process returns to determining the circulation direction, and is repeated until the completion condition is satisfied.

In addition, when moving a car in the parking lot, ■ Elevator equipment 33.
) and three conveyor devices 31 (or 32)
, 37. 38 left and right movement by simultaneously rotating them in the same direction.

- Vertical movement by moving the car onto the elevator device 33, 34 and raising and lowering the elevator platform 35, 36.

The loading/unloading operation is performed by combining each of the above operations.

Here, the entry/exit judgment circuit will be explained based on FIG. 4.

First, the sequencer recognizes the unique parking number of the vehicle by pressing a button, and by comparing it with the already stored parking number, it is determined whether the vehicle is entering or exiting the garage. Stored vehicle number memory refers to the unique absolute address in the parking lot (1 to 13 in Figure 2).
This is a place (internal memory) that stores the parking number of the car at each position (indicated by It is used to manage the vehicle status.

When a car enters the parking lot and performs a parking operation, the parking number of the parked car is registered in the storage area of the entry/exit section absolute address 13 for storage of parked car number, and the elevator platform 35, 36 is raised and lowered, and the conveyor devices 31, 32 , 37, 38, when the position of the car moves and the absolute address changes, the stored car number memory is rewritten to match the actual state. At the time of leaving the garage, the parking number of the vehicle leaving the garage is erased from the storage area of the entry/exit section absolute address 13 of the parking vehicle number storage at the same time as the vehicle exits from the loading/unloading room 21. Therefore, if the entered parking number is registered in the storage area for the parked vehicle, it is determined that the vehicle is already in the parking lot, so it is determined that the vehicle is leaving the parking lot, and if it is not registered, it is determined that the vehicle is entering the parking lot.

Next, the input/output circulation direction determination circuit will be explained.

That is, after the entry/exit is confirmed, the circulation direction during the entry/exit operation is determined based on the information about the presence or absence of a car within the absolute address from the storage vehicle number storage. Here, the condition for completing the loading/unloading operation is defined as follows.

■Receiving completion condition Until the vehicle is full (nine vehicles in this embodiment), there are no cars on the delivery conveyor device 37 on the entry/exit side and the delivery conveyor device 38 on the circulation side, that is, all the cars are in storage. State on the conveyor devices 31, 32.

■Conditions for carrying out the completion of delivery A state in which the delivery vehicle is on the delivery conveyor device 37 on the entry/exit side.

The circulation direction is determined based on whether the circulation direction, forward rotation or reverse rotation, will shorten the operation time until the condition for completing the loading/unloading operation is reached.

For example, in FIG. 9, in order to satisfy the warehousing completion condition during the warehousing operation, it is necessary to move the vehicle from the central fixed conveyor device 51 to the receiving side conveyor device 52 during the conveyance operation, that is, the fixed conveyor The receiver of the device 51 needs to be in a state where there is no car at the absolute address of the end of the side conveyor device 51 (the left side in FIG. 9, the right end if the conveyance direction is reversed).

Therefore, in the warehousing operation, the fixed conveyor device 51
The circulation direction is determined by the operating time until the upper vacant address is moved to the left end of the fixed conveyor device 51 (or the right end if the conveyance direction is reversed).

In the case of warehousing in the example, the warehousing and unloading room (absolute address 13)
In order to move the incoming car of No. 21 onto the storage conveyor device 31 or 32 of the parking room (Bl or B2) 22, after lowering the incoming car to B1 or B2 by the entrance/exit elevator device 33, move from right to left on the drawing. transport operation is required. Therefore, the elevator device 33 for entering and exiting from the storage room 21
If it is circulated in the reverse direction on the storage conveyor device 31 of the layer (B1) with the shortest vertical distance and when the end (absolute address 4) near the circulation elevator device 34 is empty,
The operation time until the warehousing completion condition is satisfied is the shortest.

In this state, the operation of conveying the incoming car to the parking room 22 (from right to left in the drawing) and the operation of conveying the empty space onto the circulation side delivery conveyor device 38 (from right to left in the drawing) are as follows: Since the transport direction is the same, the condition for completion of warehousing is satisfied without circulation of cars between layers. The end of the storage conveyor device 32 in B2 on the circulation elevator device 34 side (absolute address 7
) is empty and the material is circulated in the forward rotation direction, if we only look at the transport of the conveyor device, it is the same as the above-mentioned state where the absolute address 4 is empty, but the vertical distance of the circulation elevator device 34 is increased. , the total operating time becomes longer by the time taken for the circulation elevator device 34 to rise and fall.

Next, the end (absolute addresses 4, 7) on the circulation elevator device 34 side of the storage conveyor device 31, 32 is occupied, and the end (absolute address 1, 10) on the entrance/exit elevator device 33 side is vacant. In this case, the operation of transporting the incoming car to the parking room 22 (from right to left in the drawing) and the movement of moving the empty space onto the circulation elevator device 34 (from left to right in the drawing) are the same in the movement direction. The opposite is true, and since the vehicle circulates, the driving time becomes longer than when the left end is empty.

In this case, the incoming car is moved to the layer (B1) where the vertical distance of the elevator device 33.34 is the shortest, and the incoming car is conveyed onto the storage conveyor device 31.32, thereby being transported onto the circulation elevator device 34. the car again in different layers (
B2) is conveyed to the storage conveyor device 32 and the warehousing completion condition is satisfied, that is, the end of the storage conveyor device 32 of B2 on the entrance/exit elevator device 33 side (absolute address 1
0) is in an empty state, the operation time will be shortest if it is circulated in the reverse direction. If the absolute address 1 is vacant and normal rotation is in circulation, the operation time becomes longer by the time it takes for the elevator devices 33, 34 to descend to B2.

If there are cars at the left and right ends of the storage conveyor device 31.32, the left and right cars must be circulated to move the empty space to the ends of the storage conveyor device 31.32.

In this case as well, using the same concept as when the left and right ends of the storage conveyor devices 31 and 32 are empty spaces, in this embodiment, absolute address 3 is used for reverse circulation when it is empty, and absolute address 8 is used for normal circulation when it is empty. Rotational circulation, reverse circulation when absolute address 9 is vacant,
The operation time becomes shorter in the order of normal rotation circulation when absolute address 2 is vacant. If these flows are diagrammed, it will be as shown in the block diagram for determining the warehousing circulation direction in FIG.

The unloading operation requires an operation of transporting the car from the absolute address of the car to be unloaded onto the entrance/exit elevator device 33 (from right to left in the drawing). Departing cars and entrance/exit elevator equipment 33
If there are cars parked between the layers, it is necessary to move those cars to other layers by circulating them.

In the embodiment, the time required for the completion condition to be satisfied by circulating the cars between the outgoing car and the entrance/exit elevator device 33 in the forward direction circulation and the time required in the reverse direction circulation are calculated based on the absolute address of the outgoing car. The circulation direction is determined based on the distance to the elevator device 33 and the number of cars in each circulation direction, and the circulation direction is determined in the shortest direction.

Since the shortest driving time is the criterion for determining the direction, the parking lot 22
Depending on the warehousing state of the vehicle, the distance from the outgoing vehicle to the entrance/exit elevator device 33 may be determined not to be short, but to be long. If we diagram these flows,
The output circulation direction judgment block diagram shown in FIG. 6 is shown.

After the circulation direction is determined, forward and reverse circulation operations are performed until the entry/exit completion condition is satisfied. When both elevator devices 33 and 34 are on the same floor, the conveyance (forward rotation, reverse rotation) of each conveyor device is based on the same direction and one pitch uniform speed operation of each conveyor device, but the loading and unloading time To shorten the time, if the following conditions are met, continuous operation of up to 5 pitches is performed.

■When the parking lot (absolute address 1.10) 22 closest to the entrance/exit elevator device 33 is vacant during the grand request operation.

■During unloading operation, the unloading car is on the storage conveyor device 31.32 being transported, and the elevator device located on the rotation direction side of the storage conveyor device 31.32 (input/output elevator device 33 in forward rotation, and in reverse rotation) Circulation elevator device 34)
If there are no cars on top.

Regarding (2), by keeping the circulation elevator device 34 side of the storage conveyor device 31, 32 as empty as possible, the operation time for the next parking is shortened and the vehicle is brought closer to the entrance/exit elevator device 33. This is to shorten the operating time the next time the vehicle is taken out of the warehouse.

Regarding (2), this is done to speed up circulation by closing the empty space between cars.

Note that block diagrams of normal rotation and reverse rotation circulation operations are shown in FIGS. 7 and 8.

Effects of the Invention As described above, according to the driving control method of the present invention, when the car is moved in and out, the driving control device controls the operation of each drive device so that the time required for moving the car in and out is the shortest. This makes it possible to move cars in and out very efficiently.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; Fig. 1 is a side view schematically showing the entire vaporization process, Fig. 2 is a layout diagram of the parking room, Fig. 3 is a schematic overall flow diagram, and Fig. 4 is a schematic side view showing the entire vaporization process. Output judgment block diagram,
Fig. 5 is a block diagram for determining the incoming circulation direction, Fig. 6 is a block diagram for determining the outgoing circulation direction, Fig. 7 is a block diagram for forward circulation operation, Fig. 8 is a block diagram for reverse circulation operation, and Fig. 9 is a block diagram for determining the direction of circulation between conveyors. FIG. 3 is a schematic side view illustrating the transport operation of the vehicle. 1 to 13: Absolute address of storage location, 21: Input/output room, 31.32: Conveyor device for storage, 33
...Enter/exit elevator device, 34...Circulation elevator device, 35.36...Elevating platform, 37,38
...Delivery conveyor device, 45...Operation control device. Hey~ Ichigo

Claims (1)

[Claims] 1. A plurality of storage conveyor devices arranged above and below each other so that a plurality of cars can be stored in parallel, and an entrance/exit elevator device arranged at one end of these storage conveyor devices for moving cars in and out; Between a circulation elevator device that is placed at the other end of the storage conveyor device and circulates cars between the storage conveyor devices, and a circulation elevator device that is placed on the elevator platform of each of the storage elevator devices. In a multi-story parking lot that includes a delivery conveyor device for handing over cars, a drive device for each of the above-mentioned elevator platforms, a drive device for each of the above-mentioned conveyor devices, and an operation control device for each of the above-mentioned drive devices, 1. A method for controlling the operation of a multi-story parking lot, characterized in that the operation control device controls the operation of each drive device so that the time required for entering and exiting a car is the shortest.