Container card queuing method and system for wharf unloading, intelligent terminal and storage medium

Abstract

The invention relates to a container truck queuing method and system for wharf unloading, an intelligent terminal and a storage medium, and relates to the technical field of wharf dispatch, and the method comprises the steps: responding to a target container truck entering an electronic fence region on an approach bridge, and detecting whether the number of container trucks on a wharf surface reaches a critical value; if yes, a waiting instruction is sent to the target container truck, and the waiting instruction is used for indicating the target container truck to wait in the electronic fence area; if not, detecting whether a target container corresponding to the target container truck is in an unloadable state or not; if yes, a passing instruction is sent to the target container truck, and the passing instruction is used for indicating the target container truck to enter a wharf face to execute unloading operation; and if not, sending a waiting instruction to the target container truck. The method has the effect of reducing the probability of container truck congestion on the wharf surface.

Description

Technical Field

[0001] The present application relates to the technical field of terminal dispatching, and in particular to a method, system, intelligent terminal and storage medium for queuing container trucks for terminal unloading. Background Art

[0002] The ships docked at the wharf need to be loaded and unloaded according to the crane operation plan. The crane operation plan is jointly planned by the terminal's operation control center, loading and other positions. Complete and determine the equipment and loading and unloading sequence on the ship during loading and unloading operations.

[0003] The relevant technology will determine the unloading order of the containers according to the stacking method of the containers, and send dispatch instructions to the corresponding container trucks. After receiving the dispatch instructions, the container trucks will enter the dock through the approach bridge. After the container trucks have completed loading, they will leave the approach bridge.

[0004] With respect to the above-mentioned related technologies, the inventors believe that during normal operations, the dock surface bridge crane may be temporarily overhauled, and the unloading sequence of container trucks may be disrupted due to site congestion, thus causing container truck congestion at the dock surface. Summary of the invention

[0005] In order to reduce the probability of container truck congestion at the dock, the present application provides a container truck queuing method, system, intelligent terminal and storage medium for dock unloading.

[0006] In the first aspect, the present application provides a method for queuing container trucks for unloading at a terminal, which adopts the following technical solution: A method for queuing container trucks for dock unloading, the method comprising: In response to the target container truck entering the electronic fence area on the approach bridge, detecting whether the number of container trucks on the dock surface has reached a critical value; If yes, a waiting instruction is sent to the target container truck, wherein the waiting instruction is used to instruct the target container truck to wait on the approach bridge; If not, then detecting whether the target container corresponding to the target container truck is in a state where the cargo can be unloaded; If yes, a pass instruction is sent to the target container truck, wherein the pass instruction is used to instruct the target container truck to enter the dock surface to perform unloading operations; If not, the waiting instruction is sent to the target container truck.

[0007] By adopting the above technical solution, an electronic fence area is set on the approach bridge. After the target truck enters the electronic fence area, it will be judged according to two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state of unloading. If both conditions are met, the target truck is instructed to enter the dock surface to unload; if at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid the phenomenon of truck congestion caused by accidents, optimize the process of dock unloading, and improve the efficiency of dock unloading.

[0008] Optionally, the master container is divided into at least two groups of container combinations according to the stacking method of the master container; The container trucks corresponding to each container in the same container combination are divided into the same group of container truck combinations, the numbers of the containers in the container combination correspond to the numbers of the container trucks in the container truck combination, and the numbers of the containers are used to indicate the unloading order of the containers in the container combination; According to the placement position corresponding to the container combination, the container truck combination corresponding to the container combination is assigned to enter the approach bridge and leave the approach bridge; Obtaining the target number of the target container truck through the electronic fence on the access bridge, and obtaining other numbers before the target number; Detecting whether the other number is recorded by the electronic fence; If yes, the target container is recorded as being in a state ready for unloading; If not, the target container is recorded as being in a non-unloading state.

[0009] By adopting the above technical solution, the entry and exit bridges are allocated to the container trucks, and the electronic fence is used to determine whether the container truck has entered the dock surface, which is conducive to accurately obtaining the position of each container truck and standardizing the standard of dock unloading. In addition, the position of the container truck can be used to determine whether the target container is in a state of unloading or not.

[0010] Optionally, detecting whether the number of container trucks in the electronic fence area on the approach bridge has reached an upper limit on the number of container trucks; If yes, then counting the waiting container truck numbers of the waiting container trucks entering the approach bridge; According to the waiting truck number, the complete truck number corresponding to the approach bridge, and the truck number stored in the electronic fence, a first truck number and a second truck number are obtained, wherein the first truck number is a truck number that is sorted before the waiting truck number and is not recorded by the electronic fence, and the second truck number is a truck number that is sorted after the first truck number and is not recorded by the electronic fence; Sending an emergency pass instruction to the first container truck corresponding to the first container truck number, wherein the emergency pass instruction is used to instruct the first container truck to enter the access bridge within a preset time; Sending a pause passage instruction to the second container truck corresponding to the second container truck number, wherein the pause passage instruction is used to instruct the second container truck to stop entering the access bridge; If the distance between the first container truck and the access bridge is greater than a preset distance, a sorting instruction is sent to the waiting container truck, wherein the sorting instruction is used to instruct the waiting container truck to be sorted according to the waiting container truck number.

[0011] By adopting the above technical solution, when the number of waiting trucks on the approach bridge reaches the upper limit of the number of trucks, it will be determined which trucks need to enter the dock surface urgently and which trucks are temporarily not allowed to enter the dock surface according to the waiting trucks, which is conducive to alleviating the congestion on the approach bridge and improving the efficiency of dock unloading. Moreover, sorting the waiting trucks allows the waiting trucks to enter the dock surface in sequence in the future, which can improve the unloading efficiency.

[0012] Optionally, in the case where the entry bridge corresponds to at least two groups of container truck combinations, the waiting container truck numbers of the at least two groups of container truck combinations are counted; The waiting container truck numbers are grouped according to the container truck combination to obtain a waiting container truck number group; Determine the first container number of each of the container truck combinations that has not been unloaded according to the container number of the dock surface; Obtaining the container truck coordinates of the container truck corresponding to the first container number; Calculate the predicted time from the container truck coordinates to the dock surface; According to the first container number, count the number of remaining containers corresponding to each of the waiting container truck number groups; The waiting container trucks are sorted according to the remaining number of containers and the predicted duration.

[0013] By adopting the above technical solution, the waiting container trucks on the approach bridge are sorted. When passage is allowed, the waiting container trucks can leave the approach bridge quickly in order, thereby improving the unloading efficiency of the terminal.

[0014] Optionally, the road traffic condition of the dock surface is detected according to the dwelling time of the container trucks on the dock surface, the moving speed of the container trucks and the density of the container trucks; Determine a blocked area according to the road traffic condition; Determining the blocked approach bridge according to the position of the blocked area on the dock surface; A stop entry instruction is sent to the container truck on the blocked approach bridge, wherein the stop entry instruction is used to instruct the container truck to stop entering the dock surface.

[0015] By adopting the above technical solution, the road conditions at the dock surface can be judged in real time based on the length of time the trucks stay at the dock surface, the speed at which the trucks move, and the density of the trucks. The blocked approach bridge can be judged based on the road conditions, and the trucks can be instructed to stop passing the approach bridge to alleviate congestion in the blocked area.

[0016] Optionally, counting the blocked trucks in the blocked area; Identify the unloading status of the blocked container truck, wherein the unloading status includes a completed unloading status, an uncompleted unloading status, and an irrelevant status; When the blocked container truck is in the unloading completion state, sending an evacuation instruction to the blocked container truck, wherein the evacuation instruction is used to instruct the blocked container truck to leave the dock surface from the blocked approach bridge; When the blocked container truck is in the uncompleted unloading state, the relative direction between the blocked container truck and the unloading area and the moving direction of the blocked container truck are obtained; if the relative direction is consistent with the moving direction, the blocked container truck is instructed to continue to move toward the unloading area; if the relative direction is opposite to the moving direction, the evacuation instruction is sent to the blocked container truck; When the blocked container truck is in the irrelevant state, the evacuation instruction is sent to the blocked container truck.

[0017] By adopting the above technical solution, corresponding instructions are sent to the blocked container truck according to the unloading status of the blocked container truck. After the blocked container truck executes the action according to the corresponding instruction, the congestion on the dock surface can be alleviated.

[0018] Optionally, when the blocked container truck is in the uncompleted unloading state and the relative direction is opposite to the moving direction, the access bridge corresponding to the blocked container truck is obtained; Counting the number of container trucks entering the approach bridge; When the electronic fence on the blocked approach bridge detects that the blocked container truck has left the blocked approach bridge, a target approach bridge is determined in the approach bridge according to the distance from the blocked container truck to the approach bridge and the number of container trucks; A recommended movement instruction is sent to the blocked container truck, wherein the recommended movement instruction is used to instruct the blocked container truck to enter the target entry bridge.

[0019] By adopting the above technical solution, when the blocked container truck is in an irrelevant state, the blocked container truck can be instructed to enter the target approach bridge according to the recommended movement instruction after passing through the blocked approach bridge.

[0020] In the second aspect, the present application provides a container truck queuing system for unloading at a terminal, which adopts the following technical solution: A container truck queuing system for dock unloading, comprising: The acquisition module is used to obtain the number of trucks, stacking method, placement position, target number, complete truck number, waiting truck number, truck coordinates, truck stay time, truck movement speed and truck density; A memory for storing a program of any one of the above methods for queuing container trucks for unloading at a terminal; The program in the processor and the memory can be loaded and executed by the processor to implement any of the above methods for queuing container trucks for terminal unloading.

[0021] By adopting the above technical solution, an electronic fence area is set on the approach bridge. After the target truck enters the electronic fence area, it will be judged according to two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state of unloading. If both conditions are met, the target truck is instructed to enter the dock surface to unload; if at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid the phenomenon of truck congestion caused by accidents, optimize the process of dock unloading, and improve the efficiency of dock unloading.

[0022] In a third aspect, the present application provides a smart terminal, which adopts the following technical solution: An intelligent terminal comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and execute the above-mentioned container truck queuing method for dock unloading.

[0023] By adopting the above technical solution, an electronic fence area is set on the approach bridge. After the target truck enters the electronic fence area, it will be judged according to two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state of unloading. If both conditions are met, the target truck is instructed to enter the dock surface to unload; if at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid the phenomenon of truck congestion caused by accidents, optimize the process of dock unloading, and improve the efficiency of dock unloading.

[0024] In a fourth aspect, the present application provides a computer storage medium capable of storing a corresponding program, which has the characteristic of facilitating the reduction of the probability of container truck congestion at the dock surface, and adopts the following technical solution: A computer-readable storage medium stores a computer program that can be loaded by a processor and execute any of the above-mentioned container truck queuing methods for terminal unloading.

[0025] By adopting the above technical solution, an electronic fence area is set on the approach bridge. After the target truck enters the electronic fence area, it will be judged according to two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state of unloading. If both conditions are met, the target truck is instructed to enter the dock surface to unload; if at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid the phenomenon of truck congestion caused by accidents, optimize the process of dock unloading, and improve the efficiency of dock unloading.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. An electronic fence area is set up on the approach bridge. After the target truck enters the electronic fence area, it will be judged based on two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state where it can be unloaded. If both conditions are met, the target truck is instructed to enter the dock surface to unload; if at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid truck congestion caused by accidents, optimize the dock unloading process, and improve the efficiency of dock unloading.

[0027] 2. Assigning the entry and exit bridges to the container trucks, and judging whether the container trucks have entered the dock surface through the electronic fence, is conducive to accurately obtaining the position of each container truck and standardizing the unloading standards at the dock. In addition, the position of the container truck can be used to judge whether the target container is in a state of unloading or not; 3. According to the length of time the trucks stay at the dock, the speed of their movement and the density of their trucks, the road conditions at the dock are judged in real time. The blocked approach bridge is determined based on the road conditions, and the trucks are instructed to stop passing the approach bridge to alleviate congestion in the blocked area. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of a dock disclosed in an embodiment of the present application.

[0029] Figure 2 It is a schematic diagram of a container stacking method disclosed in an embodiment of the present application.

[0030] Figure 3 It is a flow chart of a method for queuing container trucks for unloading at a dock disclosed in an embodiment of the present application.

[0031] Figure 4 It is a flow chart of a container identification method for dock unloading disclosed in an embodiment of the present application.

[0032] Figure 5 It is a flow chart of a method for commanding container trucks for unloading at a dock disclosed in an embodiment of the present application.

[0033] Figure 6 It is a flow chart of a method for commanding a waiting container truck for unloading at a dock disclosed in an embodiment of the present application.

[0034] Figure 7 It is a flow chart of a method for identifying a blockage in dock unloading disclosed in an embodiment of the present application.

[0035] Figure 8 It is a flow chart of a method for commanding a blocked container truck for unloading at a dock disclosed in an embodiment of the present application.

[0036] Fig. 9 It is a flow chart of a method for selecting an approach bridge for dock unloading disclosed in an embodiment of the present application.

[0037] Fig.10 It is a schematic diagram of a container truck queuing system for dock unloading disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-10 It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] The present application embodiment discloses a schematic diagram of a dock. Figure 1 The wharf consists of three parts: wharf surface 1, approach bridge 2 and yard area 3.

[0040] Dockside 1 is the working platform of the dock. Dockside 1 is the main place for cargo loading and unloading and container ships berthing.

[0041] The approach bridge 2 is used to connect the dock surface 1 and the yard area 3, and is used to provide the passage of container trucks (also known as container trucks). An electronic fence 21 is set on the approach bridge 2, and the electronic fence 21 is used to monitor the container trucks passing through the approach bridge 2. Optionally, the electronic fence 21 is set at a position close to the yard area 3. Exemplarily, a camera is installed on the electronic fence 21, and the camera can capture the license plate number of the container truck in real time, and determine the container truck passing through the approach bridge 2 by the license plate number.

[0042] The yard area 3 is an open or closed space used by the terminal to store and manage containers. For example, after receiving the unloaded containers at the dock surface 1, the container truck transports the containers to the yard area 3.

[0043] It should be noted that when unloading at the terminal, since the containers are transported in stacks, the order of the containers needs to be considered when unloading them. For example, please refer to Figure 2 , the containers transported by the transport ship include container 201, container 202, container 203, container 204, container 205 and container 206. The container truck loaded with container 202 arrives at the electronic fence area earlier than the container truck loaded with container 201 and needs to wait. If the container truck loaded with container 204 arrives at the electronic fence area earlier than the container truck loaded with container 202, although the number of container 204 is larger than that of container 202, it does not affect the order of unloading, that is, the condition of direct loading is met and the unloading can be completed earlier than the container truck loaded with container 202 before the number of container trucks at the dock reaches the critical value.

[0044] The present application embodiment discloses a flow chart of a method for queuing container trucks for unloading at a terminal. Figure 3 The container truck queuing methods for unloading at the terminal include: Step S31: In response to the target container truck entering the electronic fence area on the approach bridge, detecting whether the number of container trucks on the dock surface has reached a critical value.

[0045] If the number of container trucks on the dock surface reaches a critical value, step S22 is executed; If the number of container trucks on the dock surface does not reach the critical value, step S23 is executed.

[0046] The threshold is a preset fixed value.

[0047] Optionally, a camera is provided on the electronic fence, which can capture the license plate number of the container truck in real time and identify the container truck entering the approach bridge by the license plate number.

[0048] Optionally, the electronic fence may store the number of container trucks entering and exiting the approach bridge, and obtain the number of container trucks on the dock surface based on the difference between the number of container trucks entering the approach bridge and the number of container trucks leaving the approach bridge.

[0049] Step S32: If yes, a waiting instruction is sent to the target container truck, where the waiting instruction is used to instruct the target container truck to wait on the approach bridge.

[0050] Optionally, the waiting instruction includes a waiting time and / or a waiting position.

[0051] Exemplarily, the waiting time is obtained according to the serial number sequence of the containers corresponding to the target container truck.

[0052] Exemplarily, the position of each container truck on the approach bridge is obtained. According to the position of each container truck, an empty space on the approach bridge is identified. According to the size of the target container truck, a match is performed in the empty space to obtain a waiting position.

[0053] Step S33: If not, then check whether the target container corresponding to the target container truck is in a state ready for unloading.

[0054] If the target container corresponding to the target truck is in a state where the cargo can be unloaded, step S24 is executed; If the target container corresponding to the target container truck is not in a state where the cargo can be unloaded, step S25 is executed.

[0055] In some embodiments, a leading container that precedes the target container in the unloading order is obtained; and whether the container truck corresponding to the leading container has passed the approach bridge is detected to determine whether the target container is in a state ready for unloading. If the container truck corresponding to the leading container has passed the approach bridge, the target container is in a state ready for unloading; if the container truck corresponding to the leading container has not passed the approach bridge, the target container is not in a state ready for unloading.

[0056] In some embodiments, a preceding container that is before the target container in the unloading order is obtained; and whether the target container is in a state ready for unloading is determined by whether all preceding containers have completed unloading. If all preceding containers have completed unloading, the target container is in a state ready for unloading; if there is a preceding container that has not completed unloading, the target container is not in a state ready for unloading.

[0057] Step S34: If yes, a pass instruction is sent to the target container truck, and the pass instruction is used to instruct the target container truck to enter the dock to perform unloading operations.

[0058] Optionally, the traffic instruction includes a traffic channel. Exemplarily, the traffic conditions of vehicles on each channel on the approach bridge are obtained; and according to the traffic conditions of vehicles, the channel with the least number of passing trucks is set as the traffic channel.

[0059] Step S35: If not, a waiting instruction is sent to the target truck.

[0060] In summary, an electronic fence area is set up on the approach bridge. After the target truck enters the electronic fence area, it will be judged according to two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state where it can be unloaded. If both conditions are met, the target truck is instructed to enter the dock surface to unload. If at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid the phenomenon of truck congestion caused by accidents, optimize the process of unloading at the dock, and improve the efficiency of unloading at the dock.

[0061] In the following embodiments, in the process of unloading at the wharf, it is necessary to consider which approach bridge the container truck uses to enter the wharf surface, and detect the status of each container to determine whether the container can be unloaded. Therefore, the embodiment of the present application discloses a flow chart of a container identification method for unloading at the wharf. Figure 4 , the method comprising: Step S401: Divide the total containers into at least two container groups according to the stacking method of the total containers.

[0062] Total containers refer to all containers unloaded from the transport ship to the dock.

[0063] Optionally, the stacked containers are divided into a group of container combinations. For example, please refer to Figure 2 , container 201, container 202 and container 203 are divided into a group of container combinations, container 204 and container 205 are divided into a group of container combinations, and container 206 is divided into a group of container combinations.

[0064] Step S402: The container trucks corresponding to each container in the same container combination are divided into the same group of container truck combinations. The numbers of the containers in the container combination correspond to the numbers of the container trucks in the container truck combination. The numbers of the containers are used to indicate the unloading order of the containers in the container combination.

[0065] For example, please refer to Figure 2 After the containers 201, 202 and 203 are grouped into a container combination, the container truck 1 corresponding to the container 201, the container truck 2 corresponding to the container 202 and the container truck 3 corresponding to the container 203 are grouped into the same container truck combination.

[0066] Step S403: according to the placement position corresponding to the container combination, the container truck combination corresponding to the container combination is assigned to enter the approach bridge and leave the approach bridge.

[0067] The placement position refers to the position of the container assembly on the transport ship. For example, when the container assembly is a group of containers stacked on the transport ship, the placement position refers to the projection of the container assembly in the vertical direction.

[0068] The entry approach bridge refers to the approach bridge used by the container truck assembly to enter the dock surface. The departure approach bridge refers to the approach bridge used by the container truck assembly to leave the dock surface. Furthermore, the entry approach bridge and the departure approach bridge can be the same approach bridge or different approach bridges.

[0069] Exemplarily, the moving direction of the container truck on the dock is set. The approach bridge closest to the placement position in the opposite direction of the moving direction is used as the entry approach bridge; the approach bridge closest to the placement position in the moving direction is used as the departure approach bridge. Exemplarily, the approach bridge closest to the placement position is used as the entry approach bridge and the departure approach bridge.

[0070] Step S404: Obtain the target number of the target truck by entering the electronic fence on the approach bridge, and obtain other numbers before the target number.

[0071] Optionally, the electronic fence has a storage function, and the electronic fence can record the collection cards passing through the electronic fence during a preset period of time.

[0072] For example, suppose the container trucks are numbered 1, 2, 3 and 4, and the container trucks need to enter the dock in ascending order of numbers. Then, when the target number of the target container truck is 3, numbers 1 and 2 are listed as other numbers, while number 4 is not other number.

[0073] Step S405: Check whether other numbers are recorded by the electronic fence.

[0074] If other numbers are recorded by the electronic fence, execute step S406; If the other numbers are not recorded by the electronic fence, step S407 is executed.

[0075] It should be noted that in this step, it is detected whether all other numbers are recorded by the electronic fence.

[0076] Step S406: If yes, the target container is recorded as being in a state ready for unloading.

[0077] Furthermore, when the target container is ready for unloading, a pass instruction is sent to the target container truck to notify the target container truck to enter the dock to unload.

[0078] Step S407: If not, the target container is recorded as a non-unloading state.

[0079] The unloading state and the non-unloading state are relative states. The unloading state means that the container can be unloaded, and the non-unloading state means that the container cannot be unloaded.

[0080] Furthermore, when the target container is in a non-unloadable state, a waiting instruction is sent to the target container truck to notify the target container truck to queue up and wait on the approach bridge.

[0081] In summary, allocating the entry and exit bridges for container trucks and judging whether the container truck has entered the dock surface through the electronic fence is conducive to accurately obtaining the position of each container truck and standardizing the standard of unloading at the dock. In addition, the position of the container truck can be used to judge whether the target container is in a state of unloading or not.

[0082] In the following embodiments, the carrying capacity of the approach bridge itself is also limited. When there are too many container trucks waiting in line on the approach bridge, it is also easy to cause traffic congestion on the approach bridge. At the same time, container trucks will queue up on the same side of the approach bridge, which is easy to cause the approach bridge to roll over. Therefore, it is necessary to limit the number of container trucks waiting in line on the approach bridge. To this end, the embodiment of the present application discloses a flow diagram of a container truck command method for dock unloading. Figure 5, the method comprising: Step S501: Detect whether the number of container trucks entering the electronic fence area on the approach bridge has reached the upper limit of the number of container trucks.

[0083] If the number of trucks entering the electronic fence area on the approach bridge reaches the upper limit of the number of trucks, step S502 is executed; If the number of container trucks entering the electronic fence area on the approach bridge reaches the upper limit of the number of container trucks, the process ends.

[0084] The upper limit of the number of container trucks is a preset fixed value. The upper limit of the number of container trucks is related to the container truck carrying capacity of the approach bridge.

[0085] Step S502: If yes, then count the waiting container truck numbers of the waiting container trucks entering the approach bridge.

[0086] Waiting container trucks refer to the container trucks waiting in line on the approach bridge. Waiting container truck number refers to the number of the waiting container truck.

[0087] Step S503: According to the waiting truck number, the complete truck number corresponding to the entering approach bridge, and the truck number stored in the electronic fence, obtain the first truck number and the second truck number, the first truck number is the truck number that is sorted before the waiting truck number and is not recorded by the electronic fence, and the second truck number is the truck number that is sorted after the first truck number and is not recorded by the electronic fence.

[0088] The complete container truck number refers to the number corresponding to all the container trucks entering the approach bridge.

[0089] For example, the complete set card number includes set card 1, set card 2, set card 3, set card 4 and set card 5, and the waiting set card number includes set card 3 and set card 4. The set card number stored in the electronic fence includes set card 1, set card 3 and set card 4. Then, the first set card number includes set card 2, and the second set card number includes set card 5.

[0090] Step S504: sending an emergency pass instruction to the first truck corresponding to the first truck number, where the emergency pass instruction is used to instruct the first truck to enter the aforementioned access bridge within a preset time.

[0091] Since the first container truck corresponding to the first container truck number has not entered the dock surface, the container trucks on the approach bridge can only queue up on the approach bridge, which results in too many container trucks on the approach bridge. Therefore, in this step, an emergency pass instruction is sent to the first container truck corresponding to the first container truck number, notifying the first container truck to enter the dock surface as soon as possible to complete the unloading operation.

[0092] Step S505: sending a pause instruction to the second truck corresponding to the second truck number, wherein the pause instruction is used to instruct the second truck to stop entering the aforementioned access bridge.

[0093] Since there are too many container trucks on the approach bridge, no more container trucks are allowed to pass on the approach bridge. Therefore, the second container truck corresponding to the second container truck number sends a suspension instruction to prevent more container trucks from passing on the approach bridge.

[0094] Step S506: If the distance between the first container truck and the entrance bridge is greater than the preset distance, a sorting instruction is sent to the waiting container trucks, and the sorting instruction is used to instruct the waiting container trucks to be sorted according to the waiting container truck numbers.

[0095] The preset distance is a preset fixed value. In some other embodiments, the distance between the first container truck and the access bridge is obtained. The time required for the first container truck to reach the access bridge is predicted based on the aforementioned distance. If the time is greater than the preset time, a sorting instruction is sent to the waiting container truck.

[0096] For example, the waiting trucks waiting in line on the approach bridge include truck 2 and truck 3. From the relative directions of truck 2 and truck 3, truck 2 is far from the dock surface, while truck 3 is close to the dock surface. Therefore, a sorting instruction can be sent to truck 2 and truck 3, so that truck 2 moves to a position close to the dock surface, and truck 3 moves to a position far from the dock surface.

[0097] In summary, when the number of waiting trucks on the approach bridge reaches the upper limit, it will be determined which trucks need to enter the dock surface urgently and which trucks are temporarily not allowed to enter the dock surface based on the waiting trucks. This will help alleviate congestion on the approach bridge and improve the efficiency of dock unloading.

[0098] In the following embodiments, the same approach bridge often corresponds to multiple sets of container truck combinations. At this time, it is necessary to adjust their order according to the actual conditions of different container truck combinations. Therefore, the embodiment of the present application discloses a flow chart of a method for commanding waiting container trucks for unloading at a terminal. Figure 6 , the method comprising: Step S601: When there are at least two container truck combinations entering the approach bridge, the waiting container truck numbers of the at least two container truck combinations are counted.

[0099] When there are at least two sets of container truck combinations corresponding to the approach bridge, container trucks with different container truck combinations will appear on the same approach bridge, so the container trucks need to be sorted according to the actual conditions of the different container truck combinations.

[0100] Step S602: grouping the waiting truck numbers according to the truck combination to obtain a group of waiting truck numbers.

[0101] The waiting card sets in the same waiting card set number grouping are all in the same card set combination.

[0102] Step S603: Determine the first container number of each truck combination that has not been unloaded according to the container number of the dock surface.

[0103] Exemplarily, the container combination corresponding to each container truck combination is determined; and the first container number is determined according to the container number and the container combination at the dock.

[0104] Step S604: Acquire the container truck coordinates of the container truck corresponding to the first container number.

[0105] Optionally, a positioning terminal is installed on the container truck, and the coordinates of the container truck can be determined by the positioning terminal.

[0106] Step S605: Calculate the predicted time from the container truck coordinates to the dock surface.

[0107] Exemplarily, the driving path from the coordinates of the container truck to the dock surface is obtained; and the predicted duration is obtained according to the ratio of the driving path to the average moving speed of the container truck.

[0108] Step S606: According to the first container number, the number of remaining containers corresponding to each waiting truck number group is counted.

[0109] The number of remaining containers refers to the number of containers that have not been unloaded and are waiting to be grouped according to the truck number.

[0110] Step S607: Sort the waiting trucks according to the minimum truck number and the predicted duration.

[0111] Exemplarily, the predicted durations corresponding to the waiting set card number groups are sorted from small to large to obtain the predicted duration sorting. The waiting set card number groups are sorted according to the predicted duration sorting. If the first predicted duration and the second predicted duration occur, the waiting set card number groups are grouped according to the first set card number. The smaller the first set card number, the higher the ranking of the corresponding waiting set card number group. For the set cards in the waiting set card number, they are sorted according to their corresponding set card numbers.

[0112] In summary, by sorting the waiting container trucks on the approach bridge, when passage is allowed, the waiting container trucks can leave the approach bridge quickly in order, thereby improving the unloading efficiency of the terminal.

[0113] In the following embodiment, even if the number of container trucks on the dock surface does not reach the critical value, local blockage may still occur. At this time, the embodiment of the present application discloses a flow chart of a blockage identification method for dock unloading. Figure 7 , the method comprising: Step S701: Detect the road traffic condition of the dock surface according to the dwelling time, moving speed and density of the container trucks at the dock surface.

[0114] Optionally, a positioning terminal is installed on the container truck, through which the position and moving speed of each container truck can be obtained.

[0115] Optionally, the road traffic condition includes normal road traffic and abnormal road traffic.

[0116] In some embodiments, when it is detected that the number of container trucks whose stay time is longer than the abnormal time reaches a first preset number, the road traffic condition at the dock surface is determined to be abnormal road traffic. The remaining situations indicate that the road traffic condition at the dock surface is normal road traffic. In some embodiments, when it is detected that the number of container trucks whose moving speed is less than the abnormal speed reaches a second preset number, the road traffic condition at the dock surface is determined to be abnormal road traffic. The remaining situations indicate that the road traffic condition at the dock surface is normal road traffic. In some embodiments, when it is detected that the density of container trucks is greater than the abnormal density, the road traffic condition at the dock surface is determined to be abnormal road traffic. The remaining situations indicate that the road traffic condition at the dock surface is normal road traffic. It should be noted that the above three embodiments can be implemented separately or in combination.

[0117] Step S702: Determine the blocked area according to the road traffic conditions.

[0118] Exemplarily, an area where the density of container trucks is greater than the abnormal density is determined according to the road traffic conditions and is determined as a blocked area.

[0119] Step S703: Determine the blocked approach bridge according to the position of the blocked area on the dock surface.

[0120] Exemplarily, the approach bridge closest to the blocked area is determined as the blocked approach bridge.

[0121] Exemplarily, an approach bridge whose distance from the blocked area is less than a preset blocking distance is determined as a blocked approach bridge.

[0122] Step S704: Send a stop entry instruction to the container truck on the blocked approach bridge, where the stop entry instruction is used to instruct the container truck to stop entering the dock surface.

[0123] Exemplarily, the container truck on the blocked approach bridge is determined according to the container truck number recorded by the electronic fence.

[0124] In summary, the road conditions at the dock surface can be judged in real time based on the length of time the trucks stay at the dock surface, the speed at which the trucks move, and the density of the trucks. The blocked approach bridge can then be determined based on the road conditions, and the trucks can be instructed to stop passing the approach bridge to alleviate congestion in the blocked area.

[0125] In the following embodiments, the container trucks in the blocking area have different action purposes, and it is necessary to match them with corresponding behavior patterns according to different container trucks. Therefore, the embodiment of the present application discloses a flow chart of a method for commanding a blocked container truck for unloading at a terminal. Figure 8 , the method comprising: Step S801: Count the blocked collection cards in the blocked area.

[0126] For example, the container trucks located on the dock are obtained according to the positioning terminals installed on each container truck, and the container trucks located in the blocked area are recorded as blocked container trucks. In some other embodiments, the container trucks located on the dock can also be obtained according to the container truck numbers recorded by the electronic fence.

[0127] Step S802: Identify the unloading status of the blocked container truck, where the unloading status includes a completed unloading status, an uncompleted unloading status, and an irrelevant status.

[0128] For example, the blocked container corresponding to the blocked truck is determined; if the blocked container has completed unloading, the unloading state of the blocked truck is the completed unloading state; if the blocked container has not completed unloading, the unloading state of the blocked truck is the uncompleted unloading state. If the blocked truck does not perform unloading operations on the dock, the unloading state of the blocked truck is determined to be an irrelevant state.

[0129] Step S803: When the blocked container truck has completed unloading, a evacuation instruction is sent to the blocked container truck, where the evacuation instruction is used to instruct the blocked container truck to leave the dock surface from the blocked approach bridge.

[0130] When the blocked container truck has completed unloading, it is necessary for the blocked container truck to leave the dock surface as soon as possible to alleviate the congestion in the blocked area.

[0131] Step S804: When the blocked container truck is in an uncompleted unloading state, the relative direction between the blocked container truck and the unloading area and the moving direction of the blocked container truck are obtained.

[0132] The relative direction between the blocking truck and the unloading area can be represented by a directed line segment from the blocking truck to the unloading area.

[0133] Step S805: If the relative direction is consistent with the moving direction, the blocked container truck is instructed to continue moving toward the unloading area.

[0134] The unloading area is an area on the dock surface for unloading operations. Further, when the relative direction is consistent with the moving direction, the blocked container truck is instructed to continue moving toward the unloading area so that the blocked container truck can perform unloading operations as soon as possible.

[0135] Step S806: If the relative direction is opposite to the moving direction, an evacuation instruction is sent to the blocked container truck.

[0136] When the relative direction is consistent with the moving direction, the blocked container truck is instructed to temporarily leave the dock surface to alleviate the congestion in the blocked area.

[0137] Step S807: When the blocked container truck is in an irrelevant state, an evacuation instruction is sent to the blocked container truck.

[0138] When the blocked container truck is in an irrelevant state, since the blocked container truck is not related to the unloading operation, its continued stay at the dock surface will lead to increased congestion in the blocked area. Therefore, an evacuation order is sent to the blocked container truck to make it leave the dock surface as soon as possible.

[0139] In summary, corresponding instructions are issued to the blocked container trucks according to their unloading status. After the blocked container trucks execute actions according to the corresponding instructions, the congestion on the dock surface can be alleviated.

[0140] In the following embodiment, if the blocked container truck is in an unfinished unloading state and the relative direction is opposite to the moving direction, it is difficult for the container truck to turn around on the dock surface due to the large size of the container truck, the relatively limited area of ​​the dock surface, and the congestion in the blocked area. The blocked container truck needs to leave the dock surface first and then return to the dock surface by entering the approach bridge. In order to ensure the passage efficiency of the container truck, it is necessary to plan the approach bridge for the container truck. The embodiment of the present application discloses a flow chart of a method for selecting an approach bridge for dock unloading. Fig. 9 , the method comprising: Step S901: When the blocked container truck is in an uncompleted unloading state and the relative direction is opposite to the moving direction, the access bridge corresponding to the blocked container truck is obtained.

[0141] For example, when the blocked container truck is in an unfinished unloading state and the relative direction is opposite to the moving direction, the blocked container truck needs to first leave through the blocked approach bridge to relieve the congestion in the blocked area, and then return to the dock surface by entering the approach bridge.

[0142] Step S902: Count the number of container trucks entering the approach bridge.

[0143] Optionally, the number of container trucks entering the approach bridge is obtained through a positioning terminal installed on the container truck.

[0144] Optionally, the number of container trucks entering the approach bridge is obtained based on the numbers of container trucks passing through the approach bridge as recorded by the electronic fence on the approach bridge.

[0145] Step S903: When the electronic fence on the blocked approach bridge detects that the blocked container truck leaves the blocked approach bridge, a target approach bridge is determined in the approach bridge according to the distance from the blocked container truck to the approach bridge and the number of container trucks.

[0146] Exemplarily, when the electronic fence on the blocked approach bridge detects that the blocked container truck has left the blocked approach bridge, the distance from the blocked container truck to the entrance bridge is normalized to obtain a first normalized value; the number of container trucks is normalized to obtain a second normalized value; the sum of the first normalized value and the second normalized value is calculated to obtain a normalized total value; and the entrance bridge corresponding to the minimum value of the normalized total value is taken as the target entrance bridge.

[0147] Step S904: Send a recommended movement instruction to the blocked container truck, where the recommended movement instruction is used to instruct the blocked container truck to enter the target approach bridge.

[0148] Recommended movement instructions include the target entering the approach bridge.

[0149] In summary, when the blocked container truck is in an irrelevant state, the blocked container truck can be instructed to enter the target approach bridge according to the recommended movement instruction after passing through the blocked approach bridge.

[0150] Based on the same inventive concept, the embodiment of the present application provides a container truck queuing system for dock unloading, comprising: The acquisition module 1001 is used to obtain the number of trucks, stacking method, placement position, target number, complete truck number, waiting truck number, truck coordinates, truck stay time, truck moving speed and truck density; The memory 1002 is used to store a program of the container truck queuing method for dock unloading according to any one of the above embodiments; Processor 1003, the program in the memory can be loaded and executed by the processor to implement the container truck queuing method for terminal unloading of any of the above embodiments.

[0151] In summary, an electronic fence area is set up on the approach bridge. After the target truck enters the electronic fence area, it will be judged according to two conditions: one is whether the number of trucks on the dock surface has reached the critical value, and the other is whether the target container corresponding to the target truck is in a state of unloading. If both conditions are met, the target truck is instructed to enter the dock surface to unload; if at least one condition is not met, the target truck is instructed to queue up on the approach bridge. This solution can effectively control the number of trucks on the dock surface, avoid the phenomenon of truck congestion caused by accidents, optimize the process of dock unloading, and improve the efficiency of dock unloading.

[0152] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0153] An embodiment of the present application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed by a method for queuing container trucks for unloading at a terminal.

[0154] Computer storage media include, for example, various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks or optical disks.

[0155] Based on the same inventive concept, an embodiment of the present application provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executes a method for queuing container trucks for unloading at a terminal.

[0156] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0157] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in this specification (including the abstract and drawings), unless otherwise stated, can be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

Claims

1. A method for queuing container trucks for unloading at a dock, characterized in that: The method comprises: In response to the target container truck entering the electronic fence area on the approach bridge, detecting whether the number of container trucks on the dock surface has reached a critical value; If yes, a waiting instruction is sent to the target container truck, wherein the waiting instruction is used to instruct the target container truck to wait on the approach bridge; If not, then detecting whether the target container corresponding to the target container truck is in a state where the cargo can be unloaded; If yes, a pass instruction is sent to the target container truck, wherein the pass instruction is used to instruct the target container truck to enter the dock surface to perform unloading operations; If not, the waiting instruction is sent to the target container truck.

2. The method for queuing container trucks for unloading at a terminal according to claim 1, characterized in that: The method further comprises: Dividing the total container into at least two groups of container combinations according to the stacking method of the total container; The container trucks corresponding to each container in the same container combination are divided into the same group of container truck combinations, the numbers of the containers in the container combination correspond to the numbers of the container trucks in the container truck combination, and the numbers of the containers are used to indicate the unloading order of the containers in the container combination; According to the placement position corresponding to the container combination, the container truck combination corresponding to the container combination is assigned to enter the approach bridge and leave the approach bridge; Obtaining the target number of the target container truck through the electronic fence on the access bridge, and obtaining other numbers before the target number; Detecting whether the other number is recorded by the electronic fence; If yes, the target container is recorded as being in a state ready for unloading; If not, the target container is recorded as being in a non-unloading state.

3. The method for queuing container trucks for unloading at a terminal according to claim 2, characterized in that: The method further comprises: Detecting whether the number of container trucks in the electronic fence area on the approach bridge has reached the upper limit of the number of container trucks; If yes, then counting the waiting container truck numbers of the waiting container trucks entering the approach bridge; According to the waiting truck number, the complete truck number corresponding to the approach bridge, and the truck number stored in the electronic fence, a first truck number and a second truck number are obtained, wherein the first truck number is a truck number that is sorted before the waiting truck number and is not recorded by the electronic fence, and the second truck number is a truck number that is sorted after the first truck number and is not recorded by the electronic fence; Sending an emergency pass instruction to the first container truck corresponding to the first container truck number, wherein the emergency pass instruction is used to instruct the first container truck to enter the access bridge within a preset time; Sending a pause passage instruction to the second container truck corresponding to the second container truck number, wherein the pause passage instruction is used to instruct the second container truck to stop entering the access bridge; If the distance between the first container truck and the access bridge is greater than a preset distance, a sorting instruction is sent to the waiting container truck, wherein the sorting instruction is used to instruct the waiting container truck to be sorted according to the waiting container truck number.

4. The method for queuing container trucks for unloading at a terminal according to claim 3, characterized in that: The method further comprises: In the case where the access bridge corresponds to at least two groups of container truck combinations, counting the waiting container truck numbers of the at least two groups of container truck combinations; The waiting container truck numbers are grouped according to the container truck combination to obtain a waiting container truck number group; Determine the first container number of each of the container truck combinations that has not been unloaded according to the container number of the dock surface; Obtaining the container truck coordinates of the container truck corresponding to the first container number; Calculate the predicted time from the container truck coordinates to the dock surface; According to the first container number, count the number of remaining containers corresponding to each of the waiting container truck number groups; The waiting container trucks are sorted according to the remaining number of containers and the predicted duration.

5. The method for queuing container trucks for unloading at a terminal according to claim 1, characterized in that: The method further comprises: Detecting the road traffic conditions of the dock surface according to the dwelling time, moving speed and density of the trucks at the dock surface; Determine a blocked area according to the road traffic condition; Determining the blocked approach bridge according to the position of the blocked area on the dock surface; A stop entry instruction is sent to the container truck on the blocked approach bridge, wherein the stop entry instruction is used to instruct the container truck to stop entering the dock surface.

6. The method for queuing container trucks for unloading at a terminal according to claim 5, characterized in that: The method further comprises: Counting the blocked container trucks in the blocked area; Identify the unloading status of the blocked container truck, wherein the unloading status includes a completed unloading status, an uncompleted unloading status, and an irrelevant status; When the blocked container truck is in the unloading completion state, sending an evacuation instruction to the blocked container truck, wherein the evacuation instruction is used to instruct the blocked container truck to leave the dock surface from the blocked approach bridge; When the blocked container truck is in the uncompleted unloading state, the relative direction between the blocked container truck and the unloading area and the moving direction of the blocked container truck are obtained; if the relative direction is consistent with the moving direction, the blocked container truck is instructed to continue to move toward the unloading area; if the relative direction is opposite to the moving direction, the evacuation instruction is sent to the blocked container truck; When the blocked container truck is in the irrelevant state, the evacuation instruction is sent to the blocked container truck.

7. The method for queuing container trucks for unloading at a terminal according to claim 6, characterized in that: The method further comprises: When the blocked container truck is in the uncompleted unloading state and the relative direction is opposite to the moving direction, obtaining the access bridge corresponding to the blocked container truck; Counting the number of container trucks entering the approach bridge; When the electronic fence on the blocked approach bridge detects that the blocked container truck has left the blocked approach bridge, a target approach bridge is determined in the approach bridge according to the distance from the blocked container truck to the approach bridge and the number of container trucks; A recommended movement instruction is sent to the blocked container truck, wherein the recommended movement instruction is used to instruct the blocked container truck to enter the target entry bridge.

8. A container truck queuing system for unloading at a terminal, characterized in that: The system comprises: The acquisition module is used to obtain the number of trucks, stacking method, placement position, target number, complete truck number, waiting truck number, truck coordinates, truck stay time, truck movement speed and truck density; A memory for storing a program of a container truck queuing method for terminal unloading according to any one of claims 1 to 7; The program in the memory can be loaded and executed by the processor to implement the container truck queuing method for terminal unloading as claimed in any one of claims 1 to 7.

9. An intelligent terminal, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes any one of the methods of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and execute the method according to any one of claims 1 to 7.

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