JP2006182455A - Container yard and running control method for container yard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To let a plurality of chassis advancing into an intersection of running passages run smoothly in a container yard to avoid danger such as collision. <P>SOLUTION: Sensors 22A, 22B for detecting speed and distance of chassises 14A, 14B, 14C advancing into the intersection 40 and a transfer crane 20 are arranged above the intersection 40 of running passages 16A, 16B. Signal devices 42A, 42B, 42C are arranged on a side of an advance position of the intersection 40. The sensor 22A is connected with a CPU 44 to decide the order of priority of the chassises 14A, 14B, 14C and the transfer crane 20 to run in accordance with the order of speed, distance, and stand-by time. Lighting of the signal devices 42A, 42B, 42C is controlled so that the chassises 14A, 14B, 14C and the transfer crane 20 run the intersection 40 in accordance with the decided order of priority. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a container yard having a travel path on which a chassis for transporting containers travels, and a travel control method for the chassis that travels in the container yard.

  Conventionally, the container yard has been provided with a gate into which a chassis for carrying out and carrying in containers enters. The driver who drives the chassis is designated a storage area when he / she enters the gate, travels along a traveling road stretched in the container yard, reaches the designated storage area, and waits. In the designated storage area, a transfer crane that handles containers is deployed. When a container is carried in, the container is unloaded from the chassis by a transfer crane, and the container is stored in a predetermined area. Further, when the container is carried out, the container is loaded on the chassis by the transfer crane. After the container has been unloaded, the chassis travels along the road to the gate and exits the container yard.

  In such a container yard, the traveling path on which the chassis travels intersects vertically and horizontally, and a plurality of chassis that transport the containers travels on the traveling path (see, for example, Patent Document 1). For this reason, at intersections such as T-shaped roads and crossroads, a plurality of chassis face each other when they go straight, turn right, or turn left. For example, when two or more chassis enter an intersection, the driver stops while judging the situation of each other by the eye contact of the driver driving the chassis, or proceeds little by little. Then, according to the judgment of the driver, one chassis waits at the intersection and gives way to the other chassis. In some cases, traffic control is performed by placing people near the intersection and instructing which chassis to pass preferentially.

However, in such a method, a plurality of chassis cannot smoothly travel at the intersection, and the efficiency of cargo handling decreases. Furthermore, it may cause traffic congestion at intersections. Relying on the driver's eye contact and entering the intersection is dangerous because it can cause a chassis collision. In addition, a transfer crane may enter the intersection, which is dangerous because it determines whether the driver of the chassis stops or runs.
JP-A-9-150957

  The present invention has been made in view of the above problems, and provides a container yard that can smoothly travel and avoid danger when a plurality of chassis enter an intersection of travel paths, and a container yard travel control method. The purpose is to provide.

  In order to solve the above problems, a container yard according to the invention described in claim 1 is provided with a travel path for running a chassis for transporting containers, and a container yard in which a transfer crane for loading and unloading containers is provided. The signal device installed at the intersection of the traveling road and passing or stopping the chassis and transfer crane by a lighting signal, and the speed and distance of all the chassis and transfer cranes entering the intersection are detected. Based on the sensor and the speed and distance detected by the sensor, the priority order of the chassis and the transfer crane that pass through the intersection is determined, and the signal device is turned on so that the chassis and the transfer crane travel according to the priority order. Control means for controlling There.

  According to the first aspect of the present invention, the signal device is installed at the intersection of the traveling road, and the chassis and the transfer crane pass or stop by the lighting signal of the signal device. At the intersection, sensors detect the speed and distance of all chassis and transfer cranes entering the intersection. Based on the speed and distance detected by the sensor, the priority of the chassis and the transfer crane passing through the intersection is determined by the control means, and the signal device is turned on so that the chassis and the transfer crane run according to the priority. For this reason, the several chassis and transfer crane which pass an intersection can be made to drive | work smoothly according to a priority. As a result, traffic congestion at the intersection is alleviated, and dangers such as collision between the chassis and between the chassis and the transfer crane are avoided.

  A container yard according to a second aspect of the present invention is a container yard provided with a traveling path for traveling a chassis for transporting a container and provided with a transfer crane for handling a container. The intersection of the traveling paths And a warning device for stopping or passing the chassis and the transfer crane by raising or lowering the blocking member, or a warning device for stopping the chassis by the warning, and the speeds of all chassis and transfer cranes entering the intersection And determining a priority order of the chassis and the transfer crane that pass through the intersection based on a speed detection sensor and a speed and distance detected by the sensor, and running the chassis and the transfer crane according to the priority order. Control hand for controlling the operation of the circuit breaker It is characterized by having, when.

  According to the second aspect of the present invention, the circuit breaker or the warning device is installed at the intersection of the traveling road, and the chassis and the transfer crane pass or stop by the rising and lowering of the blocking member or the warning of the warning device. At the intersection, sensors detect the speed and distance of all chassis and transfer cranes entering the intersection. Based on the speed and distance detected by the sensor, the priority of the chassis and the transfer crane that pass through the intersection is determined by the control means, and the blocking member is raised and lowered to run the chassis and the transfer crane according to the priority, Alternatively, a warning device warning is issued. For this reason, the several chassis and transfer crane which pass an intersection can be made to drive | work smoothly according to a priority. As a result, traffic congestion at the intersection is alleviated, and dangers such as collision between the chassis and between the chassis and the transfer crane are avoided.

  A container yard according to a third aspect of the present invention is the container yard according to the first or second aspect, wherein the control means includes a chassis entering the intersection, a speed of the transfer crane, and a chassis up to the intersection. The priority order is determined based on the distance of the transfer crane and the waiting time of the chassis and the transfer crane waiting at the intersection.

  According to the invention of claim 3, based on the speed of the chassis and transfer crane detected by the sensor, the distance of the chassis and transfer crane to the intersection, or the waiting time of the chassis and transfer crane waiting at the intersection Since the priority order is determined, the traveling order at the intersection of the chassis and the transfer crane becomes smoother, and wasteful waiting time is reduced.

  According to a fourth aspect of the present invention, there is provided a container yard travel control method including a travel path on which a chassis for transporting a container travels, and a container yard in which a transfer crane that handles a container is disposed near the travel path. A travel control method, wherein the speed and distance of all chassis and transfer cranes entering the intersection of the travel path are detected by a sensor, the speed of the chassis detected by the sensor, the chassis up to the intersection, and Based on the distance of the transfer crane or the waiting time of the chassis and transfer crane waiting at the intersection, the priority order of the chassis and transfer crane passing through the intersection is determined, and the chassis and the transfer crane are driven according to the priority order. Turn on the signaling device, or The cross machine is raised or lowered, or is characterized by an alarm warning device.

  According to invention of Claim 4, the speed and distance of all the chassis and transfer cranes which approach into an intersection are detected with a sensor, The speed of the chassis and transfer crane detected with this sensor, and to an intersection are detected. Based on the distance between the chassis and the transfer crane or the waiting time of the chassis and the transfer crane waiting at the intersection, the priority order of the chassis and the transfer crane passing through the intersection is determined. Then, the signal device is turned on so that the chassis and the transfer crane are driven in accordance with the determined priority order, the circuit breaker is raised or lowered, or the warning device is warned. The crane can run smoothly. For this reason, traffic congestion at the intersection is alleviated, and dangers such as collision between chassis and between the chassis and the transfer crane are avoided.

  According to the container yard and the container yard traveling control method according to the present invention, the plurality of chassis and the transfer crane entering the intersection can be smoothly traveled, traffic congestion is alleviated, and the chassis and chassis And the danger of collision of the transfer crane.

  Hereinafter, an embodiment of a container yard according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic plan view showing a container yard 10 according to the first embodiment of the present invention.

  The container yard 10 is provided with eight container fields 12 in which containers are stored. Two eight container fields 12 are arranged at intervals in the horizontal direction (left-right direction) in FIG. 1, and four are arranged at intervals in the vertical direction (up-down direction) in FIG. ing. Travel paths 16A and 16B for traveling a manned chassis 14 for transporting containers are provided between and around the eight container fields 12. Between the periphery and the vertical direction of the eight container fields 12 is a main road travel path 16A. On both sides of the container field 12 in the width direction (vertical direction in FIG. 1), rubber wheels (not shown) of the transfer crane 20 that handles the container are disposed and travel along the travel lane 18. In addition, the traveling lane 18 is one in which rubber wheels (not shown) of the transfer crane 20 travel in the vicinity thereof, and is illustrated for convenience in order to clarify the traveling path of the transfer crane 20. Although not shown, traveling lanes are also provided in the vertical direction on both sides of the container field 12, and the rubber wheel (not shown) of the transfer crane 20 is rotated by 90 ° so that the vertical direction in FIG. The container field 12 is also moved.

  The travel paths 16A and 16B are provided vertically and horizontally between and around the eight container fields 12, and sensors 22 are respectively disposed at a plurality of intersections where the travel paths 16A and 16B intersect. The sensor 22 is attached to a support member (not shown) that extends over the center at the intersection of the crossroads. In addition, at the intersection around the container field 12, the sensor 22 is attached to a support member (not shown) that extends over the side end of the intersection.

  The container yard 10 is provided with a gate 26 through which the chassis 14 enters and exits. On the side opposite to the gate 26 of the container yard 10, there is provided a dock where the ship 30 is anchored, and a container crane 28 that handles containers on the ship 30 is disposed. When the driver of the chassis 14 enters from the gate 26, one of the destination container fields 12 is designated, travels along the traveling paths 16A and 16B, goes to the designated area of the destination container field 12, and waits. A transfer crane 20 is provided in the designated area, and the container is unloaded and taken out from the chassis 14.

  FIG. 2 is a plan view showing the intersection 40 of the container yard 10.

  Two sensors 22 </ b> A and 22 </ b> B are arranged on the upper part of the central portion of the intersection 40 with the back portions thereof facing each other. The sensors 22A and 22B detect the speed and distance of the plurality of chassis 14A, 14B, and 14C entering the intersection 40 and the transfer crane 20 by detecting the light that is emitted and reflected by the object. It is. The sensors 22A and 22B can detect 180 deg by emitting light while rotating (dotted line area in FIG. 2), and 360 deg can be detected by the two sensors 22A and 22B. Further, at the intersection 40, signal devices 42A, 42B, and 42C are provided on the sides of the approach positions of the chassis 14A, 14B, and 14C to the intersection 40. An underground cable 46 from the sensors 22A and 22B is connected to the CPU 44, and an underground cable 48 from the CPU 44 is connected to the three signal devices 42A, 42B, and 42C. The signal devices 42A, 42B, and 42C are configured to run or stop the chassis 14A, 14B, and 14C by lighting in blue, yellow, and red. The CPU 44 determines the priority order of the chassis 14A, 14B, 14C and the transfer crane 20 passing through the intersection 40 based on the speed and distance of the chassis 14A, 14B, 14C and the transfer crane 20 detected by the sensors 22A, 22B. The signal devices 42A, 42B, and 42C are turned on so that the chassis 14A, 14B, and 14C travel and the transfer crane 20 is moved according to the priority.

  Next, an operation of the container yard 10 of the present embodiment, which is a travel control method for the chassis 14 that travels in the container yard 10 will be described.

  As shown in FIG. 2, the speed and distance of the chassis 14A, 14B, and 14C entering the intersection 40 are detected by the sensors 22A and 22B. For example, the chassis 14A traveling on the main road 16A has a speed Va and the distance to the center of the intersection 40 is Xa, and the chassis 14B has a speed Vb and the distance to the center of the intersection 40 is Xb. Is detected. Based on the detected speed and distance, the CPU 44 determines the priority order of the chassis 14A, 14B, 14C.

  At the intersection 40, priority is given to the chassis 14A and 14B passing through the main road running path 16A (vertical direction in FIG. 2). For this reason, the CPU 44 lights the signal device 42C in red so that the chassis 14C passing through the lateral traveling path 16B in FIG. 2 stops. On the main road 16A, the priority order is determined in the order of increasing speed when the speeds of the chassis 14A and 14B are different, and in order of decreasing distance to the intersection 40 when the speeds are substantially the same. Further, when the standby time (t) of the chassis 14C waiting at the intersection 40 exceeds a predetermined time, the chassis 14C is given priority.

  As shown in FIG. 2, the CPU 44 compares the speed Va of the chassis 14A with the speed Vb of the chassis 14B. When Va> Vb, the CPU 44 lights the signal device 42A in blue so that the chassis 14A having a higher speed is prioritized. The signal device 42B is lit in yellow or red. As a result, the chassis 14B stops, the chassis 14A runs preferentially, and goes straight, turns right or turns left at the intersection 40.

  On the other hand, when the speed Va and the speed Vb are substantially the same (Va≈Vb), the distance Xa to the center of the intersection 40 of the chassis 14A, 14B is compared with the distance Xb, and when Xa> Xb, the chassis 14A has a short distance. The signal device 42A is lit blue and the signal device 42B is lit yellow or red. Further, when the standby time (t) of the chassis 14C exceeds a predetermined time, the signal device 42C is lit in blue and the signal device 42A and the signal device 42B are lit in red so that the chassis 14C is driven with priority. Let Thereby, the chassis 14A, 14B, 14C can be efficiently traveled at the intersection 40. For this reason, unnecessary stop of the chassis 14A, 14B, and 14C at the intersection 40 and a match (face-to-face) can be reduced, and the efficiency of cargo handling can be improved. Further, it is possible to avoid danger such as collision of the chassis 14A, 14B, and 14C.

  As shown in FIG. 3, when the transfer crane 20 is deployed at a predetermined position, for example, when traveling on the travel lane 18 in the direction of arrow A, the speed and distance of the transfer crane 20 are detected by the sensor 22B. Further, the speed and distance of the chassis 14D and 14E entering the intersection 40 are detected by the sensor 22A. Since it is dangerous for the chassis 14D and 14E to travel nearby while the transfer crane 20 is moving, the CPU 44 lights the signal devices 42A and 42B in red so as to stop the chassis 14D and 14E. Thereby, when the transfer crane 20 travels, for example, the chassis 14D can be prevented from turning left in the direction of the arrow B, and the danger of a collision can be prevented.

  In the present embodiment, two sensors 22A and 22B are installed at the intersection 40, but one sensor capable of detecting 360 deg may be provided.

  Note that the priority order of the chassis 14 and the transfer crane 20 by the CPU 40 is determined in order of speed, distance, and standby time while giving priority to the main road travel path 16A, but is limited to such order. is not. For example, it may be determined in the order of distance and speed, and can be set as appropriate as long as the priority order allows the intersection 40 to travel efficiently.

  Note that the positions and number of the signal devices 42A, 42B, and 42C are not limited to the configuration of the present embodiment, and the installation location and number can be appropriately set. The signal devices 42A, 42B, and 42C are configured to light blue, yellow, and red, but are not limited thereto.

  Next, a container yard according to a second embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same member as 1st Embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 4, at the intersection 40 of this container yard, breakers 52A, 52B, and 52C are provided on the sides of the positions where the chassis 14A, 14B, and 14C enter the intersection 40. An underground cable 48 from the CPU 54 is connected to the three circuit breakers 52A, 52B, and 52C. The breakers 52A, 52B, and 52C are configured such that the blocking member 53 is pivotable about a support shaft (not shown) at the side end, and the chassis 14A, 14B and 14C are run or stopped. The CPU 54 determines the priority order of the chassis 14A, 14B, 14C and the transfer crane 20 passing through the intersection 40 based on the speed and distance of the chassis 14A, 14B, 14C and the transfer crane 20 detected by the sensors 22A, 22B. The chassis 14A, 14B, and 14C are run in accordance with this priority order, and the blocking member 53 of the breakers 52A, 52B, and 52C is raised or lowered so that the transfer crane 20 is moved. The priorities of the chassis 14A, 14B, 14C and the transfer crane 20 are determined in the same order as in the first embodiment.

  Even with such a configuration, the chassis 14A, 14B, 14C at the intersection 40 can be stopped unnecessarily, the amount of meeting (face-to-face) can be reduced, the efficiency of cargo handling can be improved, and the chassis 14A, 14B, 14C can be A danger such as a collision with the transfer crane 20 can be avoided.

  Next, a container yard according to a fifth embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same member as 1st Embodiment, and the overlapping description is abbreviate | omitted.

  As shown in FIG. 5, at the intersection 60 of the container yard, warning devices 62A and 62B are provided on the sides of the positions where the chassis 14F and 14G enter the intersection 60. An underground cable 48 from the CPU 64 is connected to the warning devices 62A and 62B. The warning devices 62A and 62B emit a warning sound or a warning display of characters such as progress and stop, and the chassis 14F and 14G are caused to run or stop by this warning sound or warning display. The CPU 64 determines the priority order of the chassis 14F, 14G and the transfer crane 20 that pass through the intersection 60 based on the speed and distance of the chassis 14F, 14G detected by the sensor 22 and the transfer crane 20, and the chassis 14F according to this priority order. , 14G, and the warning devices 62A, 62B are controlled so that the transfer crane 20 is moved.

  In such a container yard, the sensor 22 detects the speed and distance of the chassis 14F and 14G entering the intersection 60. Based on the detected speed and distance, the CPU 64 determines the priority order of the chassis 14F and 14G. For example, when giving priority to the chassis 14F passing through the travel path 16A, the CPU 64 issues a warning to the warning device 62B so that the chassis 14G passing through the travel path 16B stops. As a result, the chassis 14G stops. The warning by the warning device 62B is continued until the front end of the chassis 14F enters the traveling area 66 of the intersection 60 and the rear end of the chassis 14F passes.

  On the other hand, when giving priority to the chassis 14G, a warning is generated in the warning device 62A, and the chassis 14F is stopped. The warning by the warning device 62A is continued until the chassis 14F passes through the traveling area 66.

  Even with such a configuration, the chassis 14F and 14G at the intersection 60 can be stopped unnecessarily and the amount of meeting (face-to-face) can be reduced, the efficiency of cargo handling can be improved, and the chassis 14F and 14G and the transfer crane 20 Can avoid dangers such as collision.

It is a schematic plan view which shows the container yard which concerns on 1st Embodiment of this invention. It is an enlarged plan view showing the composition near the intersection of the container yard concerning a 1st embodiment of the present invention, and is a figure explaining an example of run of a chassis. It is an enlarged plan view which shows the structure of the intersection vicinity of the container yard which concerns on 1st Embodiment of this invention, Comprising: It is a figure explaining the other example of driving | running | working of a chassis. It is an enlarged plan view which shows the structure of the intersection vicinity of the container yard which concerns on 2nd Embodiment of this invention, Comprising: It is a figure explaining an example of driving | running | working of a chassis. It is an enlarged plan view which shows the structure of the intersection vicinity of the container yard which concerns on 3rd Embodiment of this invention, Comprising: It is a figure explaining an example of driving | running | working of a chassis.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container yard 12 Container field 14 Chassis 14A Chassis 14B Chassis 14C Chassis 14D Chassis 14E Chassis 14F Chassis 14G Chassis 16A Road 16B Road 18 Road lane 20 Transfer crane 22 Sensor 22A Sensor 22B Sensor 26 Gate 28 Container crane 30 Ship 40 Crossing 42A Signal device 42B Signal device 42C Signal device 44 CPU (control means)
52A breaker 52B breaker 52C breaker 53 breaker 54 CPU (control means)
60 intersection 62A warning device 62B warning device 66 traveling area 64 CPU (control means)

Claims (4)

A container yard having a traveling path for running a chassis for transporting a container and in which a transfer crane that handles containers is deployed,
A signal device that is installed at an intersection of the traveling road and passes or stops the chassis and the transfer crane by a lighting signal;
A sensor for detecting the speed and distance of all chassis and transfer cranes entering the intersection;
Based on the speed and distance detected by the sensor, the priority order of the chassis and the transfer crane that pass through the intersection is determined, and the lighting of the signal device is controlled so that the chassis and the transfer crane travel according to the priority order. Control means;
Container yard characterized by having. A container yard having a traveling path for running a chassis for transporting a container and in which a transfer crane that handles containers is deployed,
A breaker that is installed at the intersection of the traveling roads, passes or stops the chassis and the transfer crane by raising or lowering the blocking member, or a warning device that stops the chassis by a warning;
A sensor for detecting the speed and distance of all chassis and transfer cranes entering the intersection;
Based on the speed and distance detected by the sensor, the priority order of the chassis and the transfer crane that pass through the intersection is determined, and the operation of the breaker is controlled so that the chassis and the transfer crane travel according to the priority order. Control means;
Container yard characterized by having.   The control means is based on the speed of the chassis and the transfer crane entering the intersection, the distance of the chassis and the transfer crane to the intersection, or the waiting time of the chassis and the transfer crane waiting at the intersection. The container yard according to claim 1 or 2, wherein a rank is determined. A container yard travel control method comprising a travel path on which a chassis for transporting a container travels, and a transfer crane for loading and unloading containers near the travel path,
Sensors detect the speed and distance of all chassis and transfer cranes that enter the intersection of the travel path,
The priority of the chassis and transfer crane passing through the intersection based on the speed of the chassis detected by the sensor, the distance of the chassis and transfer crane to the intersection, or the waiting time of the chassis and transfer crane waiting at the intersection. Determine the ranking,
A container yard traveling control method, wherein a signal device is turned on so that a chassis and a transfer crane are allowed to travel according to the priority order, a circuit breaker is raised or lowered, or a warning is issued by a warning device.

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