U-shaped process automatic rail-mounted crane rear container truck operation waiting method

Abstract

The invention belongs to the technical field of automatic storage yard machinery, and particularly relates to a U-shaped process automatic rail crane rear container truck operation waiting method which comprises the following steps: S1, sending a container grabbing or placing operation instruction to an operation container truck; s2, the system enters to wait for detection; s3, whether the operation container truck enters the operation area or not is judged; if so, executing S4; if not, returning to the step S2; s4, starting to guide the operation container truck to execute a forward, backward or stop command to adjust the position, simultaneously triggering a rear container truck waiting command, turning on a red signal lamp, and turning on an LED boundary width lamp; s5, judging whether the container truck is guided in place or not; if yes, executing S6; if not, returning to S4 to continuously guide the operation container truck to adjust the position; and S6, after the operation of the operation container truck is completed, the signal lamp is green, and the LED boundary width lamp is turned off. According to the invention, the problem that the current operation container truck cannot freely advance or retreat according to the guide instruction due to the fact that the adjacent storage position waiting operation container truck is too close to the truck can be solved, and the market application prospect is good.

Description

Technical Field

[0001] The invention belongs to the field of automated yard electromechanical technology, and in particular relates to a method for waiting for container truck operations after a U-shaped process automated track hoist. Background Art

[0002] The automated container terminal (ACT) uses advanced automation facilities and combines the overall layout design of the terminal to realize the automated operation of container loading and unloading operations. Among them, the automated container terminal in Qinzhou Port of Beibu Gulf Port in Guangxi Zhuang Autonomous Region uses the world's first "U"-shaped process and technical solution. Since the beginning of its construction, the trade-off between efficiency and safety has been an important starting point for its consideration. Compared with the traditional terminal layout, the "point-to-point" loading and unloading process of the double-cantilever automated rail crane (Automated Rail Mounted Gantry, hereinafter referred to as ARMG) in the U-shaped process has increased the number of operating points. Therefore, in order to prevent safety accidents caused by the rear container truck following too closely, the establishment of a "stop area" during the operation of the external container truck is particularly important.

[0003] On the cantilever side of the rail crane container truck, that is, the left and right working lanes of the container truck entry end of the "U"-shaped process layout, since the container truck guidance system in the automated operation process needs to guide the current operating container truck, the operating container truck needs to move forward or backward to adapt to the rail crane operation position. In order to avoid the subsequent container truck waiting for operation in the adjacent bay being too close to the vehicle, resulting in the current operating container truck being unable to move forward or backward freely according to the guidance instructions, and even causing safety accidents, the display of the rear vehicle stop area is the main purpose of the rear container truck operation waiting prompt system. In order to ensure a safe distance between the rear container truck and the current operating container truck, and to ensure that the rail crane operation is carried out smoothly and orderly, the present application proposes a U-shaped process automated rail crane rear container truck operation waiting method.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a method for waiting for a container truck after a U-shaped process automated track hoist, so as to solve the problem that a container truck waiting for an operation in an adjacent bay is too close to the vehicle, resulting in the current operation container truck being unable to move forward or backward freely according to the guidance instruction.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A method for waiting for a container truck after a U-shaped process automated track hoist comprises the following steps:

[0008] S1. Sending operation instructions to the operation collection card, the operation instructions are to grab a box or put a box;

[0009] S2, the system enters the waiting test;

[0010] S3, determine whether the operation set card has entered the operation area; if so, execute S4; if not, return to step S2;

[0011] S4, start guiding the working truck to execute the forward, backward or stop command to adjust the position, and at the same time trigger the waiting command of the rear truck, the signal light turns red, and the LED boundary width indicator light turns on;

[0012] S5, determine whether the container truck is guided to the correct position; if so, execute S6; if not, return to S4 and continue to guide the container truck to adjust its position;

[0013] S6. After the operation of the truck is completed, the signal light turns green and the LED boundary width indicator light goes out.

[0014] A U-shaped process automated track crane after container truck operation waiting system, comprising:

[0015] Signal indication module, used to prompt the following container truck to proceed or stop;

[0016] The stop area display module is used to project a red boundary line on the truck road surface to instruct the following vehicle to stop outside the red boundary line and wait.

[0017] Preferably, the signal indication module is a signal light; the signal light is installed at the track hanging door leg on the rear side of the container truck operation lane in the direction of travel of the container truck, and has two light colors: red and green.

[0018] Preferably, the stop area display module is an LED boundary width indicator light; the LED boundary width indicator light is installed directly below the signal light, and its lamp head is tilted toward the truck lane, and the tilt angle adjustment range is 30° to 45°.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The U-shaped process automated rail crane rear container truck waiting method of the present invention can effectively control the movement state and stopping distance of the rear container truck by giving the rear container truck a signal indication and a stop area display, thereby avoiding collision accidents between the front and rear container trucks.

[0021] (2) The U-shaped process automated rail crane rear container truck operation waiting system of the present invention is successfully applied to the automated rail crane, so that the operating container truck driver can freely adjust the container truck position forward and backward, ensuring the safety of production and indirectly improving the operating efficiency of the automated rail crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic flow chart of the method of the present invention;

[0023] Figure 2 is a control state diagram of a signal light of the present invention;

[0024] Figure 3 It is the system PLC logic diagram of the present invention;

[0025] Figure 4 It is the system PLC wiring diagram of the present invention;

[0026] Figure 5 is the system electrical schematic diagram of the present invention;

[0027] Figure 6 It is a schematic diagram of the installation of the signal lamp and the LED width lamp of the present invention. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Example 1

[0032] See attached Figure 1 , a U-shaped process automated track crane after container truck operation waiting method, comprising:

[0033] S1, send the operation instruction to the operation collection card;

[0034] S2, the system enters the waiting test;

[0035] S3, determine whether the operation set card has entered the operation area; if so, execute S4; if not, return to step S2;

[0036] S4, start guiding the working container truck to execute forward, backward or stop commands to adjust the position, and at the same time trigger the waiting instruction of the following container truck;

[0037] S5, determine whether the container truck is guided to the correct position; if so, execute S6; if not, return to S4 and continue to guide the container truck to adjust its position;

[0038] S6. After the operation of the truck is completed, the signal light turns green and the LED boundary width indicator light goes out.

[0039] The U-shaped process automated track crane rear container truck operation waiting system of the present invention comprises: a signal indication module and a stop area display module.

[0040] The signal indicator module is a signal light installed on the track gate leg of the truck operation lane at the rear side of the truck's driving direction. It has two light colors, red and green, to prompt the following truck to go ahead or stop.

[0041] The stop area display module is an LED boundary width indicator light, which is installed directly below the signal light. Its lamp head is tilted toward the truck lane, and the tilt angle adjustment range is 30° to 45°. It is used to project a red boundary line on the truck lane surface to indicate that the following vehicle stops outside the red boundary line and waits.

[0042] The LED boundary width light uses a power of 20W and a voltage of 10-80V. In order to facilitate the identification of the truck driver behind, the LED boundary width light uses a square spotlight (red) light type, and its operating temperature is between -45℃ and 85℃, which meets the use scenario of the terminal.

[0043] From an economic point of view, adding a rear container truck operation waiting system control module to the automated rail mounted crane (ARMG) system can avoid the increase of programmable logic modules (PLC).

[0044] In this embodiment, the access channel for the external trucks is divided into: the loading and unloading lanes on the left and right sides of the yard and the overtaking lane in the middle. When the following truck needs to wait for work at the same bay or adjacent bay of the current working truck, if the current truck is performing a work task, the signal light will be red, and a red boundary line will be projected on the ground of the working truck lane, indicating that the following truck will stop outside the red boundary line and wait; if the current truck completes the work task, the signal light will be green, indicating that the following truck can move to start the work task. Please refer to the attached control status of the signal light. Figure 2 .

[0045] In order to ensure the safety of the rear truck waiting system, the system control logic will start from the starting point of the automated rail crane operation process. Once the RFID on the automated rail crane confirms that the operating truck is the correct vehicle, the trolley meets the conditions and pushes the cantilever out for measurement. At the same time, the Maxview laser on the trolley scans the position of the operating truck and guides the operating truck to move forward, backward and stop through the truck information display screen. The guidance command of the truck information display screen is the main basis for the truck to adjust its position. The signal light of the rear truck waiting system is at the same frequency as the truck guidance command, which accurately reflects the operating status of the front vehicle for the rear truck.

[0046] The control logic of the U-shaped process automated rail crane rear truck operation waiting system of the present invention belongs to a one-way open-loop control system. The coils of the signal lights and the LED boundary width lights are directly controlled by conditional commands and are not fed back to the control system of the automated rail crane. Even if the rear truck operation waiting system fails, the automated operation process will not be interrupted, thus satisfying the principle of independence.

[0047] Simply using the truck information display screen command as a control condition cannot meet the actual working conditions. Figure 3 As shown in the logic control diagram of the rear container truck operation waiting system, this embodiment adds the Maxview scan trigger command and the container truck anti-lifting trigger command, which together constitute the "or" condition of the rear container truck operation waiting system of this embodiment for control, and controls the signal lights and LED boundary width lights from three aspects: the container truck information display screen command, the Maxview scan trigger command and the container truck anti-lifting command, so as to improve the high coordination of the system.

[0048] The electrical principle of the rear truck operation waiting system of this embodiment is as shown in the attached figure. Figure 5 As shown. According to the control requirements, the corresponding output point controls the corresponding AC contactor, and then the AC contactor controls the corresponding light. When the red signal light and the LED boundary width light go out, the green signal light is triggered to light up.

[0049] Based on the particularity of container loading and unloading operations in the U-shaped process yard, the increase in loading and unloading points on both sides of the operating lanes brings with it the risk of accidents for adjacent trucks. Especially when the automated yard equipment is performing container loading and unloading operations, due to the particularity of no one on site, once the operating truck driver focuses on adjusting the truck position on the truck information display screen, the rear truck is too close to the front vehicle, and the rear truck driver has no time to react, resulting in a collision accident between the front and rear trucks, causing unnecessary economic losses and affecting operating efficiency. The U-shaped process automated rail crane rear truck operation waiting system of the present invention is successfully applied to the automated rail crane, so that the operating truck driver can freely adjust the truck position forward and backward, ensure the safety of production, and indirectly improve the operating efficiency of the automated rail crane. In addition, this system meets the four principles of safety, independence, high coordination and simplicity, with low investment costs, easy implementation, and convenience for later installation. The long-term social benefits are far greater than the economic investment, effectively solving the pain points of traffic management in the U-shaped process yard, and has a good value for industry promotion and use.

[0050] After the test and use of the first phase ARMG equipment of the Qinzhou Port automated yard, the effect is obvious. Now all 42 ARMG equipments of the Qinzhou Port automated yard are installed and used. So far, there has been no collision accident between front and rear container trucks. The system operates well, which reduces the operating pressure of container truck drivers and avoids accidents. It has been well received by container truck drivers and on-site safety management personnel. It can be seen that the U-shaped process automated track crane container truck operation waiting system and device of the present invention plays a positive role in ensuring safe operation, avoiding direct and indirect economic losses caused by accidents, and establishing a good corporate image.

[0051] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

Claims

1. A method for waiting for a container truck after a U-shaped process automated track crane operation, characterized in that: The following steps are involved: S1. Sending operation instructions to the operation collection card, the operation instructions are to grab a box or put a box; S2, the system enters the waiting test; S3, determine whether the operation set card has entered the operation area; if so, execute S4; if not, return to step S2; S4, start guiding the working truck to execute the forward, backward or stop command to adjust the position, and at the same time trigger the waiting command of the rear truck, the signal light turns red, and the LED boundary width indicator light turns on; S5, determine whether the container truck is guided to the correct position; if so, execute S6; if not, return to S4 and continue to guide the container truck to adjust its position; S6. After the operation of the truck is completed, the signal light turns green and the LED boundary width indicator light goes out.

2. A U-shaped process automated track crane after container truck operation waiting system, characterized in that: include: Signal indication module, used to prompt the following container truck to proceed or stop; The stop area display module is used to project a red boundary line on the truck road surface to instruct the following vehicle to stop outside the red boundary line and wait.

3. The method for waiting for a container truck after a U-shaped process automated track crane according to claim 2 is characterized in that: The signal indication module is a signal light; the signal light is installed at the track hanging door leg on the rear side of the container truck operation lane in the direction of the container truck's travel, and has two light colors: red and green.

4. The method for waiting for a container truck after a U-shaped process automated track crane according to claim 3 is characterized in that: The stop area display module is an LED boundary width indicator light; the LED boundary width indicator light is installed directly below the signal light, and its lamp head is tilted toward the truck lane, and the tilt angle adjustment range is 30°~45°.

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