JPS6052051B2 - How to set dispatch train priority mode - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for setting a dispatch train priority mode in a container transportation system in which containers are loaded and unloaded between trains, temporary container storage sites, and trucks using cranes.

In conventional container transportation systems, when transloading containers, controllers monitor the work progress of departing trains and instruct forklift drivers to prioritize work on trains that are about to depart. Train schedules were followed and containers were left unstacked.

In this case, when the number of containers handled is small and train changes are not complicated, even if humans give priority work instructions,
This will not reduce work efficiency much. However, as the number of containers to be handled increases and train changes become more frequent, priority work orders must be given at the optimal timing.
The following inconveniences occur. (1) Trains are delayed.

(2) Unstacked containers occur.

(3) Some trucks have to wait for a long time.

(4) Crane waste time occurs. An object of the present invention is to provide a crane operating method that eliminates such drawbacks and determines the optimal timing for setting the dispatch train priority mode.

In order to achieve such an objective, the present invention adjusts the timing of setting the dispatch train priority mode based on the number of unworked shipping containers of the dispatch train, the number of containers arriving on the train, the scheduled departure time of the train, and the number of pre-operation operations on the train. It is distinctive in that it is designed to determine. Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows the configuration of an embodiment of the container transportation system according to the present invention, in which 1 is a container crane, 2 is a berth terminal, 3 is a freight lane, 4 is a container temporary storage area, 5 is a loading/unloading line, 6-1, 6-2 are induction radios, 7
1 is a work information input device, 8 is a work information and container information storage device, 9 is a crane next work determination device, 10 is a crane next work determination request processing device, 11 is a crane control information creation device, 12 is a check-in setting device, 13 -1,13-2
, 13-3 is a container, 14 is a train, 15 is a truck,
16 is a truck driver, 17 is a crane control device, 18
is a communication auxiliary line, 19 is an antenna, 20 is a cargo handling priority update device, 21 is a crane work transition state determination device,
22 is a file update device, 23 is a crane next work request preparation device, 24 is a crane operating room, 25 is a crane driver, 26 is a spreader, 27 is a truck information processing device, 2
8 is a timer, 29 is a guardrail, 30 is a priority train mode setting device, and 31 is a controller.

The operation of the container transport system shown in FIG. 1 will be explained below.

After arriving at the terminal, the driver of the truck 15 inputs container information 101 from the check-in setting device 12.

At check-in, go to the destination berth (loading/unloading line 5 under crane 1)
The truck 15 is located at a place where the crane 1 receives cargo handling work, and one truck 15 corresponds to one freight car. ) The truck that received the instructions goes to the destination berth, where the truck driver 16 goes to berth terminal 2 (there is one in the center of the berth, S).
There is an example of 26 cars in one lane. ) Press the berth arrival confirmation push button. Press this button. The truck 102 confirms that the truck 15 has arrived at the berth. On the other hand, crane 1
Train 14, which has already entered the berth, truck 15, which has arrived at the berth, and temporary storage area 4 (temporarily stores containers 13-3, which cannot be directly transferred between the two due to the difference in the arrival of the truck and train). container 1 between
Perform the transshipment work in 3-2. In the container transshipment work, the work of grasping the container 13-2 and the running and traversing of the crane 1 are performed automatically, but the work of unloading the container 13-2 is performed by the operator in the crane operating room 24 on the crane. This is done manually by the crane driver 25 confirming safety and unloading position. Note that the crane travels along the guardrail 49. Here, the crane work transition state will be explained with reference to FIGS. 2a and 2b.

In FIG. 2a, the horizontal axis represents time. FIG. 2b is a top view of the cargo handling area under the crane. First, the crane driver 25 presses the start button for the next operation when the previous operation of the crane is completed.

When the work starts (time t1), the crane moves from the current position X1 to the grasping position j of the container 13a according to the work instruction. The movement to this container gripping position j is the first run, and the time when the first run is completed is the first run completion (time T
2). The crane 1 that has grabbed the container 13a moves to the container unloading position X3. This is the second run, and the time point at which this second run is completed is the completion of the second run (time T3). At the point j where the second travel is completed, the crane unloads the spreader 26 to unload the container 13a onto the container unloading position X3, for example onto the truck 15, and when unloading is completed, the crane lifts the spreader 26 to its home position. The point at which the winding of this spretsuda is completed is
The work is finished (time L1). After this, as mentioned earlier, the crane driver presses the work start button to start work (time ζ = t1), completes the first run, and completes the second run.
The cycle is completed and the work is completed repeatedly. The crane next work determination device 9 is activated by the crane next work determination request processing device 10 in each of the following cases, and determines the next work for the crane 1.

(1) When the second run of the crane is completed (in crane automatic operation mode). Here, the crane automatic operation mode refers to a crane operation state in which the crane automatically moves to a crane stop position according to a crane stop position instructed by an electronic computer.

(2) At the end of work (in manual operation mode displayed on the crane).

Here, the crane on-board display manual operation mode means that the crane stop position instructed by the computer is displayed in the crane operator's cabin 24, and the crane operator 25 manually operates the crane by following the displayed contents. Indicates the operating status of the crane that is to be moved.

(3) When the truck driver 16 presses the arrival confirmation button on the berth terminal 2 when the truck 15 arrives at the berth.

(4) The controller 31 inputs various commands from the work information input device 7 (for example, cargo handling restrictions to ensure work safety by restricting crane cargo handling during human intervention, temporary storage site organization commands, crane territory, etc.) At the time when a change in the range of protection of the crane, a command to request suspension of the crane, a command to cancel the same, etc.) is input, and at the time when the above command is input, the work information, the container to be handled 13 in the container information storage device 8 (in the temporary storage area) departure container, train 14 outer container)
Cargo handling priority update device 2
When updated by 0.

(5) Closed area (area where adjacent cranes are not allowed to enter in order to prevent collisions between adjacent cranes) update completed when the crane completes its travel or stops due to an abnormality.

(6) The priority train mode setting device 30 periodically determines whether the priority train mode should be set, and updates the cargo handling priority of the container related to the train for which the priority mode needs to be set. The point in time updated by the device 20.

Now, in the cases of (1), (2), and (5) above, the crane next work determining device 9 is activated as described below.

First, the signal 103 from the crane control device 17 is sent when the crane completes its travel and when the cargo handling operation is completed.
, with the help of the communication auxiliary line 18, the induction radio 6-1,
6-2 and the antenna 19, the information is input to the crane control information creation device 11. In this device 11, the signal 10
3, whether the crane is currently at the start of work, at the completion of the first run (stopped at the container grasping position), or at the completion of the second run (
(stops at the container unloading position) or at the end of the work (when the container unloading is finished and the spreader 26 is pulled up)
Depending on whether the crane is down or the crane is down, the corresponding code 104 is exchanged, and the crane next work decision requesting device 1
Enter 0.

In addition to this, a code 105 corresponding to the current crane operation mode (automatic operation mode, on-machine display automatic operation mode, etc.) is input to this device 10.

According to the above-mentioned numerals 105 and 104, using the crane work transition state discriminating device 21, in the case of (1) and (2) above, the crane number information 106 of the crane that requests the next work determination is given, and the crane next work is determined. Request preparation device 23
In the case of (5) above (including (1) and (2) above), the crane number information 107 is given as above and the file update device 22 is started. This device 22 updates the closed area, which changes as the crane 1 moves, using work information and closed area information 108 from the container information storage device 8, and stores the updated closed area information 109 in the storage device 8. . When the update is completed, the crane number information 110 is given and the crane next work determination requesting device 23 is activated. On the other hand, when there is no need to determine the next crane work and the work end code 104 is input, the file update device 22 is activated. This device 22 updates files and the like that should be updated as containers within the storage device 8 are moved. Here, the crane next work determination request preparation device 23 sets a request bit in the position corresponding to the crane number in the crane next work determination request table, gives crane number information 111 to the crane next work determination device 9, and sends the crane next work determination device 9 to the determination device 9. to start. On the other hand, in the case of (3), the berth arrival confirmation push button on berth terminal 2 is pressed down, causing the signal 1
02 is input to the truck information processing device 27, which uses the crane territory information 112 from the storage device 8 to determine which crane's territory the berth that the truck 15'' has arrived at falls into, and to determine which crane's territory the berth where the truck 15'' has arrived falls into. The crane next work decision request processing device 10 is started by giving the crane number information 113, and the current time 114 from the timer 28 is written into the truck arrival time section in the storage device 8 via the processing device 27.Processing The device 10 sets the crane next work determination request bit in the same manner as in cases ``(1), (2), and (5) above, and the crane next work determination device 9
Start. In the case of (4), the controller 31 inputs the code 115 corresponding to the cargo handling restriction mode to the processing device 10 through the work information input device 7.

In the processing device 10, the cargo handling priority updating device 20 (priority given to the container to be worked on to indicate the priority order of work) is activated by reference numeral 115, and the above-mentioned (1), (2), and (3) are activated. ), similarly to (5), the crane number information 116 is given, the crane next work decision request bit is set through the crane next work decision request preparation device 23, and the crane next work decision device 9 is activated, and the cargo handling restriction mode is set. The cargo handling priority 117 of the container related to is updated and stored in the storage device 8.
In the case of (6), the storage device 8 contains container inventory information (information regarding the position of each container on the train under the crane and on temporary storage), train number 1 information for determining the priority mode setting, and the departure of the train 1 from the freight lane. Input information 118 such as scheduled time Tis information and standard crane working time Ta information per container, and further input current time TN information 11 from the timer 28.
9 is input, and based on this information, it is determined whether the priority mode of the train 1 in question should be set this time, and if it is not necessary to set it, the determination is automatically made for other trains.

If it is necessary to set it, the train number 1 information 120 for which the cargo handling priority should be updated is output to the cargo handling priority updating device 20, and this device 20 is activated and judgment is made regarding other trains. . When the above processing is completed for all trains under the crane, the processing of the priority train mode device 30 ends. The processing after starting up the device 20 is exactly the same as in case (4). The crane next work decision request processing device 10 further receives the crane number information 1 from the work information input device 7 when inputting a temporary storage site arrangement command, crane territory and crane suspension request, and release command.
21, sets the crane next work determination request bit, and starts the crane next work determination device 9. Further, the input device 7 causes the storage device 8 to store a code 122 corresponding to the temporary storage site arrangement command, crane territory information 123, and a code 124 corresponding to the crane stop/release command. As mentioned above, the crane next work determining device 9 is activated depending on various factors, but this device 9 stores information about whether or not the crane next work in the memory device 8 should determine the next work of the currently requested crane. It is determined based on information 125 such as the mode and crane work transition state, and if it is deemed necessary to decide on the next work, the next work is determined. For example, if the crane is in automatic operation mode and the device 9 is activated due to the completion of the second run, the next work for that crane has not yet been determined, and the closed areas of the cranes on both sides have been updated. Sometimes deciding the next work for the crane. However, the crane
If the device 9 is activated due to the arrival of the truck at the berth during the period between the work start time t1 and the second travel completion time shown in , it is necessary to determine the next work for the crane at that point. However, when the current crane operation reaches the second travel completion time T3, the device 9 is inevitably activated, so the next operation is determined at that time.The contents determined by the device 9 (next operation container) The information 126 (grasping position and unloading position) is stored in the storage device 8 and given to the crane control information creation device 11, and this device 11 is activated.

The device 11 converts the container into a physical address corresponding to the container gripping position and unloading position, and sends the guidance radio 6-
Information 12 to the crane control device 17 via 1 and 6-2.
Give 7. This device 17 controls the crane driving part based on the information 127, moves the crane to a specified position, and when unloading a container, the crane driver 25 confirms the unloading position container number and work safety.
Load and unload containers with the help of The crane control information creation device 11 causes the storage device 8 to store information 128 such as the operating state and work transition state of the crane 1, and the timer 28 causes the crane next work determination device 9 to determine the remaining time of the truck. The current time 119 is given to . Next, the specific configuration of the priority train mode setting device 30, which is a feature of the present invention, will be explained using FIG. 3.

As already mentioned, the setting device 30 determines at certain regular intervals whether or not it is the timing to set the priority mode for the train under the crane, and at that timing, sets the train number information 120 for which the priority mode should be set for cargo handling. It is output to the priority update device 20. Here, the cycle for performing the above-mentioned timing determination is set in the timer 42 by the cycle setting means 41 which receives the priority mode setting timing determination cycle α information 118-1 from the storage device 8 as input information. This timer 42 activates the unworked shipping container number calculation device 43, the train coat container number calculation device 4, and the work number calculation means device 45 at each set period. Each of the above-mentioned devices 43, 44, and 45 receives container inventory information from the storage device 8 (presence or absence of a container regarding each container position on the train under the crane, temporary storage, type of container, etc.) upon activation from the timer 42. Information 1 representing the train number 1 on which the container is loaded, date, information such as availability of seats on the train), train number 1 information for determining priority mode setting, etc.
18-2, and enter the number of unworked shipping containers for the train (temporary shipping containers and train shipping containers of unarrived trucks), number of train jacket containers, and temporary shipping related to the train. Count the number of container pre-works (when handling containers in the middle or lower tiers of temporary upper stacked containers, the work of moving containers on top of the container to other containers). For example, if containers B and c are stacked on top of shipping container a in a temporary storage area,
The number of pre-operations for container a is the number of times container b is placed on top of container a in order to load container a onto a train.
and c to another location, that is, 2.
Considering the case where the container below a certain container is the container to be shipped, the total number of previous operations for the container to be shipped to train 1 is calculated as Nl. ．． It is defined as Each of the devices 43 to 45 sends information 129 to 129 indicating the number of unworked shipping containers Nib of the train 1, the number of train jacket containers NiO, and the number of previous work Nl to the backlog processing time calculation device 46, respectively. 131 is output. Here, the number of train jacket containers is used in the same meaning as the number of containers arriving on the train. Generally, when a train arrives at a container transport base, it unloads the loaded containers and then becomes a shipping train. At this time, the unloading work of the arriving container (abbreviated as arrival container) of the train and the loading work of the shipping container (abbreviated as departure container) are performed in parallel.
The number of train jacket containers is the number of containers that have not yet been unloaded from the train, out of the containers that have been loaded by the arriving train, and the unloading work remains for that number.
In addition to the above information 129, 130, 131, the calculation device 46 inputs the standard crane working time Ta information 118-3 per container from the storage device 8, and calculates the information regarding the train 1 using the following equation (1). Backlog processing time t1 information 1
32 is obtained and inputted to the priority mode setting determination device 47.
In addition to the above-mentioned time information 132, the priority mode setting determination device 47 also receives information 118-4 on the scheduled departure time T,... of the freight lane of the train 1 from the storage device 8 and current time Tn information 119 from the timer 28. The priority mode input time TiU is determined from the following equation (2), and it is determined whether the priority mode should be set using the following equation (3).

Here, α is the period for determining the priority mode assumption timing, as described above.

In other words, it means the period of checking whether there is a train for which priority mode should be set. For example, if α is 3 times, then 3
For each accident, it is checked whether there is a train that should be set to priority mode. Also, subtracting α from equation (3) is because if α is not subtracted, if X1 becomes negative at the next judgment that comes after α time (for example, 3 minutes) from the current time, the departure time of the train in question will be between 0 and α. This is because you will be delayed by 30 minutes. In the above equation (3), if the determination time X1 is positive, a start signal 133 is given to each of the devices 43 to 45 to determine other trains under the crane.

If it is zero or negative, the priority mode should be set for the train 1, and at the same time the train number 1 information 120 is output to the "cargo handling priority update" device 20, the above-mentioned judgment time is correct. As in the case of , each device 43 to 45
A start signal 133 is given to the. Figure 4 shows the above (2)
) and (3) are explained.

The horizontal axis of this figure shows time. In Figure 4-,
At times Tl, T2, and T3, which determine the priority mode setting at each point in time when the current time Tn changes from T1 to T4, the determination time X1 is positive, and it can be seen that it is not the timing to set the priority mode. . However, time T
4, the determination time Xlj becomes a negative value, and if the priority mode is not set at this time, there is a high possibility that the train will depart late or containers will be left behind. Also, although this is self-evident, in order to prevent late trains and unstacked containers, and to minimize the priority mode setting time, it is desirable to make the priority mode setting determination cycle α as small as possible. Yes. The above is the explanation of the priority mode setting device 30. Next, the reason why container cargo handling operations related to trains designated as priority train mode are preferentially processed is as follows.

Table 1 shows the crane work priorities. normal mode,
This is a priority train mode for giving priority work to dispatching trains. Based on this table, the cargo handling priority updating device 20 changes the priority mode to work for trains set in priority mode (items 4, 5, and 6 in the first table) and the tasks for other trains (items 7, 8, and 9). The priority will be set higher than that of . When the cargo handling priority updating device 20 is instructed to set the priority train mode, it changes the cargo handling priority of containers related to the train 1 to be higher than the cargo handling priorities of other trains, as shown in Table 1. do. For example, in priority train work, what is the departure train priority mode?
In this mode, priority is given to loading and unloading containers of shipping trains whose departure time is approaching, and work on the train is given priority over work on other trains so that all shipping containers of the train can be loaded by the departure time. mode. Regarding truck work here, trucks related to trains for which priority mode has been entered at check-in (the place where trucks register for work and receive destination instructions when they arrive at the terminal) are given priority to enter the terminal. Trucks that do not meet the criteria are restricted from entering by temporarily stopping at check-in. Since the crane's next operation is selected in order of cargo handling priority (order of priority), containers on trains set to priority train mode by the method described above will be processed preferentially. As can be seen from the above-mentioned embodiments, according to the present invention, it is possible to set the dispatch train priority mode at the optimal timing, which not only eliminates late trains and unstacked containers, but also allows the dispatch train priority mode to be set when necessary. By setting the time earlier than the time, it is possible to extend the life of trucks that are open to trains other than the train in question, and to reduce unnecessary work of cranes.

[Brief explanation of the drawing]

Figure 1 is a block diagram of an embodiment of the container transportation system according to the present invention, Figures 2A and b are explanatory diagrams explaining the transition states of the crane, and Figure 3 is a diagram of the priority train mode setting device of Figure 1. FIG. 4 is a configuration diagram showing an example of a specific configuration, and is an explanatory diagram of priority mode setting timing determination of the present invention. 1... Container crane, 4... Container temporary storage area, 8... Work information/container information storage device, 9... Crane next work determination device, 13...
Container, 14... Train, 15... Truck, 30... Priority train mode setting device, 46...
... Backlog processing time calculation device, 47...
・Priority mode setting determination device.

Claims (1)

[Claims] 1. In a container transportation system in which containers are loaded and unloaded using cranes between trains, temporary container storage areas, and trucks, the number of unworked shipping containers on a shipping train, the number of arriving containers on the train, and the number of unworked shipping containers on the train Multiply the standard work time per container by the sum of the number of operations to find the required time t_i for clearing the backlog for the train, and calculate the priority mode input time T_ from the departure time T_i_s of the train and the required time t_i for clearing the backlog.
Find i_u and calculate current time T_1 from the priority mode input time.
The priority mode determination time X_i is calculated by subtracting the period α for determining the priority mode setting timing from ___~_n, and the sign of the determination time is constantly monitored, and when the determination time becomes zero or negative, the train departs immediately. 1. A method for setting a dispatch train priority mode, comprising setting a priority mode and allocating container work for the departing train preferentially to the crane.