JP2951062B2 - Transport system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport system having a plurality of stations and a plurality of transport trains.

[0002]

2. Description of the Related Art In such a transport system, conventionally,
As a method of giving a work command to each transport train, a method of setting one point on the traveling route (rail) of the transport train as a home position and giving a command to the transport train only at this one point has been adopted.

[0003]

However, in the above-mentioned conventional method, since only one carrier train can enter the home position, the following problems occur. In other words, when several transport trains are running in a row, it is always the top transport train that can enter the home position. Cannot travel forward, causing a time loss and reducing the traveling efficiency of the transport train. In this case, since the work is always performed only by the foremost transport train, there is a problem that the transport efficiency of the system is reduced.

[0004] The present invention has been made in view of the above problems, and an object of the present invention is to provide a transport system capable of obtaining high transport efficiency.

[0005]

In order to achieve the above object, according to the present invention, in a transport system having a plurality of stations and a plurality of transport trains, a section having a certain length is set in a traveling route of the transport train. It is characterized in that a work command is given to the last train among unworked transport trains existing in this section.

[0006]

According to the present invention, since a work command is given to an unworked transport train located in a certain set section, which is located at the rear end, the train running ahead of the transport train cannot be used. Can continue to work or travel without being affected by the work command, and as a result, the transfer efficiency of the transfer system is improved.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a partial configuration diagram of a transport system according to the present invention. The transport system includes a plurality of transport trains a, b, c, d, e,. 1, a receiving station A, an unloading station B, a receiving station C, an unloading station D, and a central control panel (not shown).

In the transport system, each of the transport trains a, b, c,... Receives a work command from a host computer of a centralized control panel, receives a load from a load receiving station (A, C,. This is transported to a predetermined unloading station (B, D...).

In the present embodiment, for example, when a request for transporting a load is made at the receiving station A, an allocation section S for determining a transport train to which the transport request is to be allocated has a certain length on the rail 1. Is set.

FIG. 2 shows a method of giving a work command when a request for transporting a load is made at the receiving station A.
This will be described according to the flowchart of FIG.

That is, when a package arrives at the leading end of a lifter (not shown) at the receiving station A, the centralized control panel assumes that a request for transporting the package has been made at the receiving station A (step 1 in FIG. 2). It is determined which carrier train should be assigned this request (step 2). Specifically, as shown in FIG. 1, there are four transport trains b, c, d, and e in the allocated section S,
Of these, only one transport train c is working,
When the other three transport trains b, d, and e are not in operation, a transport request is allocated to the last one of the transport trains b, d, and e. . This is for the following reason.

That is, for example, when a transport request is assigned to the most advanced transport train “b”, while the transport train “b” is delivering and receiving the luggage at the receiving station A, the transport train during reverse travel is in operation. c must be stopped, and the other two transport trains d and e cannot perform the next operation unless the receiving of the transport train b is completed, and the same problem as in the related art occurs. .

When a transfer request is assigned to an intermediate transfer train d, the transfer trains b,
Although c can continue running or performing work (transportation) irrespective of the allocation, the subsequent transport train e cannot perform the next work unless the receiving of the transport train d is completed. In this case, In addition, the transfer efficiency of the transfer system is deteriorated.

On the other hand, when a transport request is allocated to the last transport train e as in this embodiment, all of the transport trains b, c, and d preceding the transport train e are not allocated. Because you can continue running or working regardless of
The time loss is eliminated, and the transfer efficiency of the transfer system is improved.

When the transport train e to be allocated is determined as described above, a program that is being executed or not executed for the transport train e (when the transport train e is traveling in a section other than the allocated section S). The program that was running,
Alternatively, the program which has not been executed) is canceled (steps 3 and 4), and if the transport train to be allocated does not exist in the allocated section S, the allocated section S
(Steps 3 and 2 are repeated).

In this embodiment, the receiving program is transmitted from the centralized control panel to the transport train e, and the transport train e executes the received receiving program and receives the package from the receiving station A (step 5). . And
The transport train e receiving the package receives the transport program from the centralized control panel, transports the package to a predetermined unloading station according to the transport program, and descends there (step 6), and transmits the load information to the centralized control panel. (Step 7).

Thereafter, the transport train e which has finished transporting the load
Moves to a predetermined place according to the moving program received from the centralized control panel (step 8) and waits for the next command.

[0019]

As is apparent from the above description, according to the present invention, in a transport system having a plurality of stations and a plurality of transport trains, a section having a certain length is set on the travel route of the transport train. Since the work command is given to the last one of the unworked transport trains existing in this section, other transport trains running before the transport train are affected by the work command. Work or traveling can be continued without any change, and as a result, the transfer efficiency of the transfer system is improved.

[Brief description of the drawings]

FIG. 1 is a partial configuration diagram of a transport system according to the present invention.

FIG. 2 is a flowchart showing how to give a work command in the transport system according to the present invention.

[Explanation of symbols]

 1 Rail (traveling route) A, D Receiving station B, D Unloading station S Allocated section a to e Transport train

Claims (1)

(57) [Claims] 1. In a transport system having a plurality of stations and a plurality of transport trains, a section having a certain length is set in a traveling route of the transport train, and a section of an unworked transport train existing in the section is set. Wherein a work command is given to the last one.