Method and system for calculating unloading operations

Abstract

The application provides a kind of unloading operation calculation system and method, comprising: unloading plan management module: according to including to cargo plan, ship information, yard information and shipping plan, corresponding wharf unloading operation plan and yard operation plan are made, and unloading mixed heap early warning model is used to check and verify unloading operation plan at the plan level;Port machine driver wireless terminal APP module: through port machine driver wireless terminal APP, port machine driver carries out unloading operation according to unloading operation plan;The unloading mixed heap early warning model is used to early warn the mixed material of unloading operation from the plan level and the operation level.The application realizes the fine control of port unloading operation, improves the operation efficiency, reduces the transportation cost, and saves manpower.

Description

Technical Field

[0001] This invention relates to the field of unloading operations of large dry bulk cargo port unloaders and stacker-reclaimers, and to a method and system for calculating unloading operations. More specifically, it relates to the use of a computer system to complete the full-process control of port unloading operations and operational performance when multiple unloaders are working together in a large dry bulk cargo port. Background Technology

[0002] Currently, large dry bulk cargo ports utilize a combination of equipment, including ship unloaders, conveyor belts, and stacker-reclaimers, to unload bulk cargo from ships. Grab unloaders use grabs to unload bulk cargo; they can move along tracks to unload materials. After grabbing materials from the ship's hold, they are transported to the dockyard via conveyor belts. Grab unloaders are now controllable by PLCs. Bucket wheel stacker-reclaimers are specialized machines used in port yards for large-scale dry bulk cargo stacking and reclaiming operations. They employ PLC control for automated operation and are widely used in loading and unloading operations at major dry bulk cargo yards.

[0003] Currently, because most port control systems fail to interface with port management systems, information on vessels, cargo, and storage yards cannot be transmitted from the port management system to the port control system. Information such as the number of grab buckets closed, instantaneous conveyor belt flow, and conveyor belt start / stop information from the port control system cannot be fed back to the port management system in real time. This results in port management personnel being unable to monitor on-site operations in real time, making it impossible to adjust unloading plans promptly. Furthermore, the operational performance of on-site port machinery operators cannot be automatically generated by the system; data must be manually recorded by operators during operations and then entered into the system retroactively, failing to ensure the timeliness and accuracy of data acquisition.

[0004] Most current invention patents for bulk cargo terminals only manage the terminals from the aspects of management, operation, equipment and material yard. However, this invention comprehensively manages the entire bulk cargo terminal, enabling global, real-time and refined control of the terminal's operations.

[0005] Patent document CN107451720A (application number: 201710545325.1) discloses a method for evaluating vessel operation plans in automated container terminals, focusing on solving the problem of evaluating vessel operation plans in automated container terminals. The main feature of this method is its ability to independently identify factors in the vessel operation plan that may affect vessel operation time, independent of the terminal's equipment and scheduling, and to assess the degree of impact of these factors on vessel operation time.

[0006] This invention fully leverages the functions of mobile applications (APPs) and the development trend of smart logistics in ports. Port machinery operators can perform operations through the APP and interact with the port control system through the port unloading operation calculation system to obtain information such as instantaneous conveyor belt flow and grab bucket closing number. This enables the management of the entire port unloading operation process, unloading operation early warning, and automatic allocation of unloading operation performance, thereby improving the efficiency and control accuracy of port unloading operations, enhancing the port management level, and achieving integrated, intelligent, and refined management of port unloading.

[0007] After the invention is put into operation, it can realize the tracking and control of the entire process of port unloading operations. At the same time, through functions such as mixed material early warning, performance sharing of ship unloading machine joint operation, and full life cycle management of port equipment, the system realizes comprehensive management of operation plans, port equipment, and operation performance, thereby greatly improving port work efficiency, enhancing port management level, and realizing refined and intelligent port management.

[0008] Port information management through the port unloading operation system can provide basic information for subsequent unmanned port production operations and provide favorable support for enterprises to move towards unmanned and intelligent operations. Summary of the Invention

[0009] In view of the deficiencies in the prior art, the purpose of this invention is to provide a calculation system and method for unloading operations.

[0010] A ship unloading operation calculation system provided by the present invention includes:

[0011] The unloading plan management module: Based on arrival plans, shipping schedules, yard information and delivery plans, it compiles corresponding terminal unloading operation plans and yard operation plans, and checks the unloading operation plans at the planning level through an unloading mixed stacking early warning model;

[0012] Harbor Machinery Operator Wireless Terminal APP Module: The Harbor Machinery Operator Wireless Terminal APP enables the Harbor Machinery Operator to carry out unloading operations according to the unloading operation plan.

[0013] The ship unloading mixing early warning model provides early warning of mixing during ship unloading operations from both the planning and operational levels.

[0014] Preferably, the yard management module generates a real-time dynamic map of the yard based on the division of cargo locations, enabling comprehensive management of cargo during port production operations.

[0015] Preferably, the equipment lifecycle management module can obtain the real-time operating status and workload of each piece of equipment in the port area, provide early warnings for maintenance and scrapping, and realize the full lifecycle management of port operating equipment.

[0016] Preferably, the instantaneous flow rate of the belt scale, the number of grab buckets closed, and the direction information of the stacker-reclaimer are obtained in real time through the port area data acquisition system. By using the terminal, port machinery, and belt operation information, the current status of the operating vessels, the port machinery operation status, the instantaneous flow rate of the belt scale, the cumulative volume of the belt scale, the type of cargo corresponding to the belt scale, and the operating status of the belt are obtained. These are then displayed in real time through a visual screen, realizing real-time dynamic management of the entire process of bulk cargo terminal operations.

[0017] Preferably, the material yard information includes: unloading and warehousing information, material yard inventory information, and material yard outbound information;

[0018] The unloading and storage information includes: cargo owner, cargo name, and storage date.

[0019] Preferably, the terminal unloading operation plan and the material yard operation plan adopt automatic allocation of actual operation performance. For the situation of multiple port machinery operating together for bulk cargo unloading, the workload of a single shift, a single port machinery, and a single port machinery driver is calculated in real time based on the unloading machine's operating capacity coefficient, the instantaneous volume of the belt scale, and the number of grab buckets closed. The operation of the port machinery driver and the subsequent unloading plan are adjusted, and the operating efficiency of the port machinery and the port machinery driver is evaluated.

[0020] Preferably, the unloading mixing early warning model adopts the following approach: providing early warning of mixing during unloading operations from both the planning and operational levels;

[0021] The planning level adopts the following approach: When preparing the unloading operation plan for the port, the unloading vessel is selected and the stacking method is maintained, including new stacking and replenishment stacking; when it is a new stacking, the corresponding new stacking start and end addresses are entered, and the stacking information is checked according to the address. If the stacking information exists, a mixing warning is issued; when it is a replenishment stacking, the stacking is selected from the screened stacks according to the vessel loading information.

[0022] The operational level employs the following approach: based on the port unloading operation process, the working vessel and hatch number are operated on the port management system's wireless terminal. The stacker-reclaimer's crane position and cantilever information uploaded by the port's data acquisition system are used to calculate the unloading point location. The location of the unloading point is then used to determine if there is material information at the current location. If there is material information, but it is inconsistent with the material information at the vessel's hatch, a mixing warning is issued on the unloader driver's wireless terminal and the remote stacker-reclaimer dispatch terminal, effectively preventing mixing accidents during production operations.

[0023] Preferably, the calculation of the stacker-reclaimer unloading point location information based on the stacker-reclaimer crane position and cantilever information uploaded by the port data acquisition system adopts the following method:

[0024] B(a`,b`)=A(a+l*cosβ*cosα,a+l*cosβ*sinα) (1)

[0025] Where B(a`,b`) represents the location of the stacker-reclaimer unloading point; A(a,b) represents the location of the stacker-reclaimer; α represents the angle between the cantilever and the roadway of the stockpile machine, + indicates that the cantilever is placed on the north bar, - indicates that the cantilever is placed on the south bar; l represents the cantilever length of the stacker-reclaimer; β represents the stacker-reclaimer's stacking pitch angle, + indicates the pitch angle, - indicates the depression angle.

[0026] Preferably, the automatic allocation of work performance includes:

[0027] Module M1: When the driver starts work, record the instantaneous belt flow rate, work start time, and initial switch number for the current driver's operation;

[0028] Module M2: Real-time acquisition of the current operation status of the ship unloader operator;

[0029] Module M3: When another unloader operator joins the current unloading operation while the current operator is working, the module records the instantaneous belt flow rate, operation end time, and end switch number of the original operator's operation when the other operator starts working; and records the instantaneous belt flow rate, operation start time, and initial switch number of the other operator's operation.

[0030] Module M4: Calculates the amount of work completed by the original driver during single-machine operation; regenerates the instantaneous belt flow, operation start time, and initialization switch number for the original driver's operation;

[0031] Module M5: When another ship unloader operator is currently working, and the original operator performs a cabin transfer or finishes the operation, it generates the amount of work completed by the original operator during the joint working period and the amount of work completed by the other ship unloader operator during the joint working period.

[0032] Module M6: Regenerates the instantaneous belt flow, operation start time, and initialization switch number for the current ship unloader operator's operation. Repeatedly triggers modules M2 to M6 to generate the operation completion volume for a single machine, a single operator, and a single shift.

[0033] Original driver's workload = Shared workload of joint operations * Original driver's unloader switch quantity * Original driver's unloader capacity coefficient;

[0034] Shared base for joint operation = (Current belt weighing capacity - Operating belt weighing capacity) / (Original driver's unloader switch quantity * Original driver's unloader capacity coefficient + Other driver's unloader switch quantity * Other driver's unloader capacity coefficient).

[0035] A method for calculating unloading operations according to the present invention includes:

[0036] Step S1: Based on the arrival plan, shipping schedule information, material yard information and delivery plan, prepare the corresponding terminal unloading operation plan and material yard operation plan, and check the unloading operation plan at the planning level through the unloading mixed stacking early warning model;

[0037] Step S2: Based on the cargo location division of the yard, generate a real-time dynamic map of the yard to achieve comprehensive management of cargo during port production operations.

[0038] Step S3: Obtain the real-time operating status and workload of various equipment in the port area, provide early warnings for maintenance and scrapping / renewal, and realize full life cycle management of port operating equipment;

[0039] Step S4: The port machinery operator uses the port machinery operator's wireless terminal APP to carry out unloading operations according to the unloading operation plan;

[0040] The ship unloading mixing early warning model provides early warning of mixing during ship unloading operations from both the planning and operational levels.

[0041] Step S5: The instantaneous flow rate of the belt scale, the number of grab buckets closed, and the direction information of the stacker-reclaimer are obtained in real time through the port area data acquisition system. By using the terminal, port machinery and belt operation information, the current status of the operating vessel, the port machinery operation status, the instantaneous flow rate of the belt scale, the cumulative volume of the belt scale, the corresponding cargo type of the belt scale and the operation status of the belt are obtained. The information is displayed in real time through a visual screen to realize real-time dynamic management of the entire process of bulk cargo terminal operations.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. This invention can realize the tracking and control of the entire process of port unloading operations. At the same time, through functions such as mixing warning, performance sharing of ship unloading machine joint operation, and full life cycle management of port equipment, the system realizes comprehensive management of operation plan, port equipment, and operation performance, thereby greatly improving port work efficiency, enhancing port management level, and realizing refined and intelligent port management.

[0044] 2. This invention enables port information management through a port unloading operation model and system, which can provide basic information for subsequent unmanned port production operations and provide favorable support for enterprises to move towards unmanned and intelligent operations.

[0045] 3. This invention is easy to deploy and use, and its effectiveness and profitability are demonstrated through application cases, making it particularly suitable for port enterprises engaged in bulk cargo terminal unloading operations. Attached Figure Description

[0046] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0047] Figure 1 This is a flowchart illustrating the overall calculation method for unloading operations.

[0048] Figure 2 This is a schematic diagram of an electronic material yard.

[0049] Figure 3 This is a diagram of a stacker-reclaimer.

[0050] Figure 4 The angle of the stacker-reclaimer overhead crane cantilever.

[0051] Figure 5 This is a statistical analysis chart of the material yard.

[0052] Figure 6 This is a monitoring chart of port operations progress.

[0053] Figure 7 This is a diagram illustrating the operation of a port machinery operator's app.

[0054] Figure 8 This is a data flow diagram for the unloading operation model. Detailed Implementation

[0055] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0056] Example 1

[0057] According to the present invention, a ship unloading operation calculation system is provided, such as Figures 1 to 8 As shown, it includes:

[0058] The unloading plan management module: Based on arrival plans, shipping schedules, yard information and delivery plans, it compiles corresponding terminal unloading operation plans and yard operation plans, and checks the unloading operation plans at the planning level through an unloading mixed stacking early warning model;

[0059] Harbor Machinery Operator Wireless Terminal APP Module: The Harbor Machinery Operator Wireless Terminal APP enables the Harbor Machinery Operator to carry out unloading operations according to the unloading operation plan.

[0060] The ship unloading mixing early warning model provides early warning of mixing during ship unloading operations from both the planning and operational levels.

[0061] Specifically, the yard management module generates a real-time dynamic map of the yard based on the division of cargo locations, enabling comprehensive management of cargo during port production operations.

[0062] Specifically, the equipment lifecycle management module: obtains the operating status and workload of each piece of equipment in the port area in real time, provides early warnings for maintenance and scrapping, and realizes full lifecycle management of port operating equipment.

[0063] Specifically, the port area data acquisition system obtains real-time information on the instantaneous flow rate of the belt scale, the number of grab buckets closed, and the direction of the stacker-reclaimer. Through the information on the wharf, port machinery, and belt operation, it obtains the current status of operating vessels, port machinery operation, instantaneous flow rate of the belt scale, cumulative volume of the belt scale, the type of cargo corresponding to the belt scale, and the operating status of the belt. This information is then displayed in real time through a visual screen, enabling real-time dynamic management of the entire bulk cargo terminal operation process.

[0064] Specifically, the material yard information includes: unloading and warehousing information, material yard inventory information, and material yard outbound information;

[0065] The unloading and storage information includes: cargo owner, cargo name, and storage date.

[0066] Specifically, the terminal unloading operation plan and the material yard operation plan adopt automatic allocation of actual operation performance. For the situation of multiple port machinery working together to unload bulk cargo, the workload of a single shift, a single port machinery, and a single port machinery driver is calculated in real time based on the unloading machinery's operating capacity coefficient, the instantaneous volume of the belt scale, and the number of grab buckets closed. The operation of the port machinery driver and the subsequent unloading plan are adjusted, and the operating efficiency of the port machinery and the port machinery driver is evaluated.

[0067] Specifically, the unloading mixing early warning model adopts the following approach: providing early warning of mixing during unloading operations from both the planning and operational levels.

[0068] The planning level adopts the following approach: When preparing the unloading operation plan for the port, the unloading vessel is selected and the stacking method is maintained, including new stacking and replenishment stacking; when it is a new stacking, the corresponding new stacking start and end addresses are entered, and the stacking information is checked according to the address. If the stacking information exists, a mixing warning is issued; when it is a replenishment stacking, the stacking is selected from the screened stacks according to the vessel loading information.

[0069] The operational level employs the following approach: based on the port unloading operation process, the working vessel and hatch number are operated on the port management system's wireless terminal. The stacker-reclaimer's crane position and cantilever information uploaded by the port's data acquisition system are used to calculate the unloading point location. The location of the unloading point is then used to determine if there is material information at the current location. If there is material information, but it is inconsistent with the material information at the vessel's hatch, a mixing warning is issued on the unloader driver's wireless terminal and the remote stacker-reclaimer dispatch terminal, effectively preventing mixing accidents during production operations.

[0070] Specifically, the calculation of the stacker-reclaimer unloading point location information based on the stacker-reclaimer crane position and cantilever information uploaded by the port data acquisition system adopts the following method:

[0071] B(a`,b`)=A(a+l*cosβ*cosα,a+l*cosβ*sinα) (1)

[0072] Where B(a`,b`) represents the location of the stacker-reclaimer unloading point; A(a,b) represents the location of the stacker-reclaimer; α represents the angle between the cantilever and the roadway of the stockpile machine, + indicates that the cantilever is placed on the north bar, - indicates that the cantilever is placed on the south bar; l represents the cantilever length of the stacker-reclaimer; β represents the stacker-reclaimer's stacking pitch angle, + indicates the pitch angle, - indicates the depression angle.

[0073] Specifically, the automatic allocation of work performance includes:

[0074] Module M1: When the driver starts work, record the instantaneous belt flow rate, work start time, and initial switch number for the current driver's operation;

[0075] Module M2: Real-time acquisition of the current operation status of the ship unloader operator;

[0076] Module M3: When another unloader operator joins the current unloading operation while the current operator is working, the module records the instantaneous belt flow rate, operation end time, and end switch number of the original operator's operation when the other operator starts working; and records the instantaneous belt flow rate, operation start time, and initial switch number of the other operator's operation.

[0077] Module M4: Calculates the amount of work completed by the original driver during single-machine operation; regenerates the instantaneous belt flow, operation start time, and initialization switch number for the original driver's operation;

[0078] Module M5: When another ship unloader operator is currently working, and the original operator performs a cabin transfer or finishes the operation, it generates the amount of work completed by the original operator during the joint working period and the amount of work completed by the other ship unloader operator during the joint working period.

[0079] Module M6: Regenerates the instantaneous belt flow, operation start time, and initialization switch number for the current ship unloader operator's operation. Repeatedly triggers modules M2 to M6 to generate the operation completion volume for a single machine, a single operator, and a single shift.

[0080] Original driver's workload = Shared workload of joint operations * Original driver's unloader switch quantity * Original driver's unloader capacity coefficient;

[0081] Shared base for joint operation = (Current belt weighing capacity - Operating belt weighing capacity) / (Original driver's unloader switch quantity * Original driver's unloader capacity coefficient + Other driver's unloader switch quantity * Other driver's unloader capacity coefficient).

[0082] A method for calculating unloading operations according to the present invention includes:

[0083] Step S1: Based on the arrival plan, shipping schedule information, material yard information and delivery plan, prepare the corresponding terminal unloading operation plan and material yard operation plan, and check the unloading operation plan at the planning level through the unloading mixed stacking early warning model;

[0084] Step S2: The port machinery operator uses the port machinery operator's wireless terminal APP to carry out unloading operations according to the unloading operation plan;

[0085] The ship unloading mixing early warning model provides early warning of mixing during ship unloading operations from both the planning and operational levels.

[0086] Specifically, based on the cargo location division of the storage yard, a real-time dynamic map of the storage yard is generated, enabling comprehensive management of cargo during port production operations.

[0087] Specifically, it can obtain the real-time operating status and workload of various equipment in the port area, provide early warnings for maintenance and scrapping, and realize full life cycle management of port operating equipment.

[0088] Specifically, the port area data acquisition system obtains real-time information on the instantaneous flow rate of the belt scale, the number of grab buckets closed, and the direction of the stacker-reclaimer. Through the information on the wharf, port machinery, and belt operation, it obtains the current status of operating vessels, port machinery operation, instantaneous flow rate of the belt scale, cumulative volume of the belt scale, the type of cargo corresponding to the belt scale, and the operating status of the belt. This information is then displayed in real time through a visual screen, enabling real-time dynamic management of the entire bulk cargo terminal operation process.

[0089] Specifically, the material yard information includes: unloading and warehousing information, material yard inventory information, and material yard outbound information;

[0090] The unloading and storage information includes: cargo owner, cargo name, and storage date.

[0091] Specifically, the terminal unloading operation plan and the material yard operation plan adopt automatic allocation of actual operation performance. For the situation of multiple port machinery working together to unload bulk cargo, the workload of a single shift, a single port machinery, and a single port machinery driver is calculated in real time based on the unloading machinery's operating capacity coefficient, the instantaneous volume of the belt scale, and the number of grab buckets closed. The operation of the port machinery driver and the subsequent unloading plan are adjusted, and the operating efficiency of the port machinery and the port machinery driver is evaluated.

[0092] Specifically, the unloading mixing early warning model adopts the following approach: providing early warning of mixing during unloading operations from both the planning and operational levels.

[0093] The planning level adopts the following approach: When preparing the unloading operation plan for the port, the unloading vessel is selected and the stacking method is maintained, including new stacking and replenishment stacking; when it is a new stacking, the corresponding new stacking start and end addresses are entered, and the stacking information is checked according to the address. If the stacking information exists, a mixing warning is issued; when it is a replenishment stacking, the stacking is selected from the screened stacks according to the vessel loading information.

[0094] The operational level employs the following approach: based on the port unloading operation process, the working vessel and hatch number are operated on the port management system's wireless terminal. The stacker-reclaimer's crane position and cantilever information uploaded by the port's data acquisition system are used to calculate the unloading point location. The location of the unloading point is then used to determine if there is material information at the current location. If there is material information, but it is inconsistent with the material information at the vessel's hatch, a mixing warning is issued on the unloader driver's wireless terminal and the remote stacker-reclaimer dispatch terminal, effectively preventing mixing accidents during production operations.

[0095] Specifically, the calculation of the stacker-reclaimer unloading point location information based on the stacker-reclaimer crane position and cantilever information uploaded by the port data acquisition system adopts the following method:

[0096] B(a`,b`)=A(a+l*cosβ*cosα,a+l*cosβ*sinα) (1)

[0097] Where B(a`,b`) represents the location of the stacker-reclaimer unloading point; A(a,b) represents the location of the stacker-reclaimer; α represents the angle between the cantilever and the roadway of the stockpile machine, + indicates that the cantilever is placed on the north bar, - indicates that the cantilever is placed on the south bar; l represents the cantilever length of the stacker-reclaimer; β represents the stacker-reclaimer's stacking pitch angle, + indicates the pitch angle, - indicates the depression angle.

[0098] Specifically, the automatic allocation of work performance includes:

[0099] Step S3: When the driver starts the operation, record the instantaneous belt flow rate, operation start time, and initial switch number for the current driver operation;

[0100] Step S4: Obtain the current operation status of the ship unloader operator in real time;

[0101] Step S5: When the current operator is working, another unloader operator joins the current unloading operation. When the other unloader operator starts working, record the instantaneous belt flow rate, operation end time, and end switch number of the original operator's operation; record the instantaneous belt flow rate, operation start time, and initial switch number of the other unloader operator's operation.

[0102] Step S6: Calculate the amount of work completed by the original driver during single-machine operation; regenerate the instantaneous belt flow, operation start time, and initial switch number for the original driver's operation;

[0103] Step S7: When the original driver performs a cabin transfer or finishes the operation while another unloader operator is working, generate the amount of work completed during the joint operation period of the original driver and the amount of work completed during the joint operation period of the other unloader operator.

[0104] Step S8: Regenerate the instantaneous belt flow, operation start time, and initialization switch number for the current ship unloader operator's operation. Repeat steps S4 to S8 to generate the operation completion volume for a single machine, a single operator, and a single shift.

[0105] Original driver's workload = Shared workload of joint operations * Original driver's unloader switch quantity * Original driver's unloader capacity coefficient;

[0106] Shared base for joint operation = (Current belt weighing capacity - Operating belt weighing capacity) / (Original driver's unloader switch quantity * Original driver's unloader capacity coefficient + Other driver's unloader switch quantity * Other driver's unloader capacity coefficient).

[0107] Example 2

[0108] Example 2 is a preferred example of Example 1.

[0109] Port unloading operations are a collaborative business scenario involving various port operation units. It requires cooperation from planners, unloader operators, central control dispatchers, and stacker-reclaimer operators to improve port unloading efficiency. The core algorithm involved in this invention is deployed on a backend server. Unloader operators use a tablet app, while planners and dispatchers perform corresponding operations on computer clients.

[0110] A ship unloading operation calculation system provided by the present invention includes:

[0111] Ship unloading plan management module: Based on arrival plans, shipping schedules, delivery plans and other planning information, it compiles corresponding terminal ship unloading operation plans and material yard operation plans, realizes comprehensive management of operation plans, avoids process conflicts, improves port throughput capacity, and at the same time corrects or adjusts operation plans through real-time feedback of operation performance, providing support for the production organization and management of port ship unloaders and stacker-reclaimers.

[0112] Yard Management Module: Based on cargo transport documents, this module handles various handovers between cargo owners and cargo owners for goods entering and leaving the yard; registers the loading, unloading, and storage processes of goods in port; and manages inventory. Based on the yard's location divisions, it generates real-time dynamic maps of the yard, allowing staff to monitor the status of each cargo in the yard for relevant personnel to query. This enables comprehensive management of cargo during port operations, facilitates cargo transportation and delivery, generates summaries of cargo operations in port, and provides all the basic data for cargo billing.

[0113] Ship unloading early warning management module: It provides early warning of material mixing during ship unloading operations from both the planning and operational levels. The system collects the positioning of the stacker-reclaimer trolley and the rotation angle of the cantilever to determine whether the material type in the stockpile is consistent with the material type in the ship hold, ensuring that no material mixing accidents occur during ship unloading from the perspective of system protection.

[0114] The full-process control module interfaces with the port area data acquisition system to obtain real-time information such as the instantaneous flow rate of belt scales, the number of grab buckets closed, and the direction of stacker-reclaimers. By integrating the operational information of the terminal, port machinery, and belts, it uses an intuitive visual screen to display the current status of operating vessels, port machinery operations, instantaneous flow rate of belt scales, cumulative volume of belt scales, corresponding cargo types of belt scales, and the operational status of belts in real time, meeting the requirements for real-time dynamic management of the entire bulk cargo terminal operation process.

[0115] Automatic performance allocation module: For situations where multiple port machinery operate together during bulk cargo unloading, the module calculates the workload of a single shift, a single port machinery, and a single port machinery operator in real time based on the unloading machinery's operating capacity coefficient, the instantaneous volume of the belt scale, and the number of grab buckets closed. This information is used to guide the operation of port machinery operators and adjust subsequent unloading plans, thereby accurately evaluating the operating efficiency of port machinery and port machinery operators.

[0116] Equipment Lifecycle Management Module: Real-time acquisition of the operating status and workload of various equipment in the port area, tracking the workload of equipment such as conveyor belts, grab buckets, and port machinery, thereby providing early warnings for maintenance and scrapping, realizing full lifecycle management of port operation equipment, and providing scientific basis for the maintenance, scrapping and replacement of relevant equipment in the port area.

[0117] Port Machinery Operator Wireless Terminal APP Module: The Port Machinery Operator Wireless Terminal APP is the terminal application operated by the port machinery operator. Through this APP, the port machinery operator can carry out unloading operations according to the unloading operation plan. At the same time, the APP has functions such as plan push, waiting for orders, and port machinery malfunction.

[0118] The ship unloading mixed-dumping early warning model

[0119] Stacker-reclaimer crane position and cantilever angle

[0120] Electronic material yard diagram (e.g.) Figure 2As shown), the transport routes for the stacker-reclaimer are between material yards A and B, and between material yards C and D; the cantilever length of the stacker-reclaimer (as shown) Figure 3 (As shown) represents a fixed length L. The stacker-reclaimer's tilt angle is transmitted in real time via the port data acquisition system. + indicates the tilt angle, and - indicates the yaw angle. This allows us to obtain the projected length of the stacker-reclaimer's cantilever, i.e. Figure 4 In The length is determined by the angle α between the cantilever and the stockyard crane's travel path, where + indicates the cantilever is positioned on the north bar and - indicates the cantilever is positioned on the south bar. This allows us to obtain the position of point B(a', b'), i.e.:

[0121] The position of the stacker-reclaimer A(a,b), its pitch angle +β or -β, and its cantilever angle +α or -α are uploaded to the unloading calculation model via a data acquisition system, thus yielding the position of point B(a`,b`).

[0122] B(a`,b`)=A(a+l*cosβ*cosα,a+l*cosβ*sinα)

[0123] Obtaining information on the work site

[0124] This invention's material yard management module is responsible for managing all port material yard information, including unloading and storage information, inventory information, and outbound information. After unloading and stockpiling at the port, the system records and tracks relevant information for each material yard, mainly including cargo owner, cargo name, and stockpiling date. Simultaneously, it interfaces with the port's electronic material yard infrared scanning system, or relies on manual data maintenance by material yard workers each shift, to generate information such as... Figure 2 The diagram showing the material yard information is shown.

[0125] Early warning model for unloading and mixing

[0126] Ship unloading and mixed stockpiling accidents usually occur when there are errors in the input of the starting and ending addresses of the stockpiles during unloading and replenishment. Port production units hope to prevent mixed stockpiling accidents by providing corresponding early warnings at the planning and operational levels.

[0127] Planning level

[0128] When planning the unloading operation plan at the port, the planners select the vessel to be unloaded at the port and maintain the stacking method (new stacking or replenishment stacking). If it is a new stacking, the planners enter the corresponding start and end addresses of the new stacking. The system checks whether there is stacking information at the start and end addresses. If there is, a prompt is given. If it is a replenishment stacking, the planners select the stacking from the pre-screened stacks based on the vessel loading information.

[0129] Operational level

[0130] According to the port unloading operation procedure, the unloader operator first operates the vessel and hatch number on the port management system wireless terminal, and calculates the unloading point location information based on the stacker-reclaimer crane and cantilever information uploaded by the port data collection system. Based on the unloading point location information, it is determined whether there is material information at that location. If there is, and it is inconsistent with the material information at the vessel's hatch, a mixing warning is issued on the unloader operator's wireless terminal and the remote stacker-reclaimer dispatch terminal to effectively prevent mixing accidents during production operations.

[0131] Performance sharing model for joint operations of ship unloaders

[0132] In large deep-water ports, multiple ship unloaders often work on the same vessel. When multiple unloaders simultaneously unload the same bulk material onto the same conveyor belt, it becomes impossible to statistically analyze the performance of each machine. Either relevant personnel need to record and manually calculate the data, or the performance can only be simply allocated based on the workload and the number of machines in operation. This makes it difficult to conduct detailed statistical analysis of the performance and efficiency of a single machine, a single shift, or a single operator.

[0133] This system interfaces with the port data acquisition system and acquires the instantaneous flow rate of the conveyor belt and the port's data information in real time at a certain frequency, which serves as the data basis for the performance allocation model.

[0134] Processing flow of the performance sharing model for joint operations of ship unloaders:

[0135] The ship unloader operator A selects "Start Operation" on the system's wireless terminal APP. The system records the instantaneous belt flow, operation start time, and initialization switch number of operator A based on the operation.

[0136] This system obtains the number of operation stages of the ship unloader driver A in real time.

[0137] While unloader operator A is working, unloader operator B joins the unloading operation. B selects the same vessel operation [Operation Start] on the wireless terminal APP. The system records the instantaneous belt flow rate (end quantity), operation end time, and number of closing points for operator A's operation, based on operator B's actions. Simultaneously, the system automatically calculates the completed work volume for operator A's single-machine operation during this time period and regenerates a new record for operator A's operation, including the instantaneous belt flow rate, operation start time, and initial closing points. The system also records the instantaneous belt flow rate, operation start time, and initial closing points for operator B's operation.

[0138] When ship unloader operator B is working, if ship unloader operator A needs to perform a cabin transfer operation or finish the operation, he can operate "Operation End" on the wireless terminal APP, and the system will automatically calculate the amount of work completed by operator A during the joint working period.

[0139] Driver A's workload = Shared base amount for joint operations * Unloader A's on / off quantity * Unloader A's capacity coefficient (2)

[0140] Shared base for joint operations = (Current belt weighing volume - Operating belt weighing volume) / (Unloader A switch quantity * Unloader A capacity coefficient + Unloader B switch quantity * Unloader B capacity coefficient) (3)

[0141] Similarly, calculate the amount of work completed by driver B during the joint working period, and regenerate the instantaneous belt flow, start time, and initial number of switches for driver B's operation.

[0142] While unloader operator B is working, unloader operator A rejoins the operation and selects "Start Operation" on the same vessel via the wireless terminal APP. The system records the instantaneous belt flow rate (end quantity), operation end time, and number of closed switches for operator B's operation based on operator A's actions. Simultaneously, the system automatically calculates the total work completed by operator B during this single-machine operation period and regenerates a new record for operator B's operation, including the instantaneous belt flow rate, operation start time, and initial closed switches. The system also records the instantaneous belt flow rate, operation start time, and initial closed switches for operator A's operation.

[0143] Similarly, when the ship unloader operator clicks "off duty" on the wireless terminal APP, the system automatically generates the work completion amount for a single machine, a single driver, and a single shift based on the recorded work completion amount of the operator.

[0144] Example 3

[0145] Example 3 is a preferred example of Example 1 and / or Example 2.

[0146] Unloading plan management

[0147] By collaborating with external units, relevant personnel maintain information such as ship order information, cargo compartment information, and ship pre-arrival information through the system or within the system. This information serves as the basis for the port to prepare unloading operation plans, thereby improving the accuracy of unloading operation time when ships arrive at the port and enhancing the feasibility of production plan preparation.

[0148] Meanwhile, port personnel formulate corresponding unloading operation plans based on ship arrival information and port material yard information, and check the unloading operation plans at the planning level through the ship mixing early warning model, and issue mixing early warning for conflicting plans.

[0149] Yard Management

[0150] The system automatically generates a yard map by receiving yard location information from the port's electronic yard infrared scanning system, or yard managers can draw the yard map on the system by dragging and dropping. Based on the location addresses on the yard map, the yard manager can select the corresponding cargo information (including cargo owner, bill of lading quantity, electronic scale quantity, voyage information, and entry time). Subsequently, the system performs outbound operations on the cargo in the yard via shipping or road transport, generating corresponding conveyor belt metering orders or road transport metering orders, and generating yard storage fees accordingly for settlement with relevant units.

[0151] Full process control

[0152] The system interfaces with the port's data acquisition system to acquire information such as the instantaneous flow rate of the belt scale, the operating status of the belt, and the number of grab bucket switches at a certain acquisition frequency. The system displays the current port operation progress and status in real time in a graphical format. Warning information during the operation is also displayed graphically. By clicking on the A, B, C and other material bar buttons or the operation vessel icon, the system can query the operation progress of the material yard or vessel, so that port dispatchers and planners can monitor the operation status in real time and make flexible adjustments to the unloading operation plan.

[0153] Equipment lifecycle management

[0154] Belt information maintenance

[0155] Maintain basic information about the belt, including: belt code, belt specifications, belt length, belt width, belt type, belt status information, equipment area and location, belt replacement alarm value, belt replacement limit value, belt replacement workload, belt replacement cycle, belt start date, and expected replacement date.

[0156] Grab bucket information maintenance

[0157] The basic information of the grab bucket is maintained, including: grab bucket code, grab bucket name, grab bucket type, grab bucket status, grab bucket replacement alarm value, grab bucket replacement limit value, grab bucket replacement cycle, grab bucket installation date, expected replacement date, and cutting edge information. Simultaneously, by establishing a standard database of grab bucket basic information, the unloader operator can only select unused online grab buckets on the wireless terminal APP, thus achieving fault tolerance and error correction functions for both online and offline grab buckets.

[0158] Wire Rope Information Maintenance

[0159] Maintain basic information about the wire rope, including: wire rope code, wire rope specification, wire rope length, wire rope width, wire rope type, wire rope condition, wire rope replacement alarm value, wire rope replacement limit value, wire rope installation date, and expected replacement date.

[0160] Port equipment lifecycle management

[0161] By interacting with the port data acquisition interface system, information such as the operating signals, process number, and cumulative amount of the process belt scale of each belt conveyor system is obtained. Based on the actual cumulative amount of each belt in the process, the total cumulative amount of belt usage within the belt cycle is calculated. By comparing with the replacement alarm value and the replacement limit value, the mid-term repair time and scrap replacement time of the belt under normal conditions are predicted.

[0162] By maintaining the correspondence between the grab bucket, cutting edge, and wire rope, the working volume of the grab bucket, cutting edge, and wire rope is calculated based on the model and system. This data is then compared with the alarm values ​​and replacement limits for the grab bucket, cutting edge, and wire rope to enable tracking and early warning of the grab bucket, cutting edge, and wire rope. This provides port equipment inspection personnel with a scientific basis for equipment maintenance, scrapping, and replacement.

[0163] Harbor Machinery Driver Wireless Terminal APP

[0164] With a simple, single-screen design, all relevant information and operation buttons for port machinery operators are displayed on one screen, including the vessel being operated, berthing / start time, corresponding unloading operation instructions, current conveyor belt operation system, cargo status of each compartment of the vessel being operated, and the operator's workload for the shift. At the same time, the operations that the port machinery operator needs to perform are displayed with corresponding operation buttons and related prompts in the relevant information operation boxes.

[0165] Through the operation of port machinery operators on the wireless terminal APP and the linkage between the back-end and the port data acquisition system, real-time statistical analysis of the operation performance of a single shift, a single driver, and a single port machinery can be achieved.

[0166] Integrated application platform

[0167] This invention is based on .NET C# / C++ technology, supports a client / server architecture, and can be flexibly deployed on operating systems such as Unix, Windows, and Linux. It also supports mainstream databases such as Oracle, DB2, and SQL Server. The design of this invention fully considers the characteristics of loose coupling and high cohesion in software design. It can operate independently as a system or serve as an embedded module in a logistics and transportation system, achieving seamless integration of logistics business data.

[0168] Those skilled in the art will understand that, in addition to implementing the system, apparatus, and their modules provided by this invention in purely computer-readable program code, the same program can be implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system, apparatus, and their modules provided by this invention can be considered a hardware component, and the modules included therein for implementing various programs can also be considered structures within the hardware component; alternatively, modules for implementing various functions can be considered both software programs implementing the method and structures within the hardware component.

[0169] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A ship unloading operation calculation system, characterized in that, include: The unloading plan management module: Based on arrival plans, shipping schedules, yard information and delivery plans, it compiles corresponding terminal unloading operation plans and yard operation plans, and checks the unloading operation plans at the planning level through an unloading mixed stacking early warning model; Harbor Machinery Operator Wireless Terminal APP Module: The Harbor Machinery Operator Wireless Terminal APP enables the Harbor Machinery Operator to carry out unloading operations according to the unloading operation plan. The ship unloading mixing early warning model provides early warning of mixing during ship unloading operations from both the planning and operational levels. The terminal unloading operation plan and the material yard operation plan adopt the automatic allocation of actual operation performance. For the situation of multiple port machinery working together to unload bulk cargo, the workload of a single shift, a single port machinery, and a single port machinery driver is calculated in real time based on the unloading machinery's operating capacity coefficient, the instantaneous volume of the belt scale, and the number of grab buckets closed. The operation of the port machinery driver and the subsequent unloading plan are adjusted, and the operating efficiency of the port machinery and the port machinery driver is evaluated. The ship unloading mixing early warning model adopts the following approach: early warning of mixing during ship unloading operations from both the planning and operational levels. The planning level adopts the following approach: When preparing the unloading operation plan for the port, the unloading vessel is selected and the stacking method is maintained, including new stacking and replenishment stacking; when it is a new stacking, the corresponding new stacking start and end addresses are entered, and the stacking information is checked according to the address. If the stacking information exists, a mixing warning is issued; when it is a replenishment stacking, the stacking is selected from the screened stacks according to the vessel loading information. The operational level adopts the following approach: based on the port unloading operation process, the working vessel and the working hatch number are operated on the wireless terminal of the port management system. Based on the crane position and cantilever information of the stacker-reclaimer uploaded by the port data acquisition system, the location information of the stacker-reclaimer unloading point is calculated. Based on the location information of the unloading point, it is determined whether there is material information at the current location. When there is material information, but it is inconsistent with the material information of the ship's working hatch, a mixing warning is issued on the unloading machine driver's wireless terminal and the remote operation terminal of the stacker-reclaimer, effectively preventing the occurrence of mixing accidents in production operations. The automatic allocation of work performance includes: Module M1: When the driver starts work, record the instantaneous belt flow rate, work start time, and initial switch number for the current driver's operation; Module M2: Real-time acquisition of the current operation status of the ship unloader operator; Module M3: When another unloader operator joins the current unloading operation while the current operator is working, the module records the instantaneous belt flow rate, operation end time, and end switch number of the original operator's operation when the other operator starts working; and records the instantaneous belt flow rate, operation start time, and initial switch number of the other operator's operation. Module M4: Calculates the amount of work completed by the original driver during single-machine operation; regenerates the instantaneous belt flow, operation start time, and initialization switch number for the original driver's operation; Module M5: When another ship unloader operator is currently working, and the original operator performs a cabin transfer or finishes the operation, it generates the amount of work completed during the joint working period of the original operator and the amount of work completed during the joint working period of the other ship unloader operator. Module M6: Regenerates the instantaneous belt flow, operation start time, and initialization switch number for the current ship unloader operator's operation. Repeatedly triggers modules M2 to M6 to generate the operation completion volume for a single machine, a single operator, and a single shift. Original driver's workload = Shared base amount for joint operations Original driver's unloader switch quantity Original driver's unloader capacity coefficient; Shared base for joint operations = (Current belt weighing capacity - Operating belt weighing capacity) / (Original driver's unloader on / off status) Original driver's unloader capacity coefficient + other driver's unloader on / off quantity Another driver's unloader capacity coefficient).

2. The unloading operation calculation system according to claim 1, characterized in that, Yard Management Module: Based on the division of cargo locations in the yard, it generates a real-time dynamic map of the yard, enabling comprehensive management of cargo during port production operations.

3. The unloading operation calculation system according to claim 1, characterized in that, Equipment lifecycle management module: Real-time acquisition of the operating status and workload of various equipment in the port area, providing early warnings for maintenance and scrapping, and realizing full lifecycle management of port operating equipment.

4. The unloading operation calculation system according to claim 1, characterized in that, The port area data acquisition system obtains real-time information on the instantaneous flow rate of belt scales, the number of grab buckets closed, and the direction of stacker-reclaimers. Through information on the terminal, port machinery, and belt operation, it obtains the current status of operating vessels, port machinery operation status, instantaneous flow rate of belt scales, cumulative volume of belt scales, corresponding cargo types of belt scales, and operating status of belts. This information is then displayed in real time through a visual screen, enabling real-time dynamic management of the entire bulk cargo terminal operation process.

5. The unloading operation calculation system according to claim 1, characterized in that, The material yard information includes: unloading and warehousing information, material yard inventory information, and material yard outbound information; The unloading and storage information includes: cargo owner, cargo name, and storage date.

6. The unloading operation calculation system according to claim 5, characterized in that, The method for calculating the stacker-reclaimer unloading point location information based on the stacker-reclaimer crane position and cantilever information uploaded by the port data acquisition system is as follows: （1） in, Indicates the location of the stacking, reclaiming, and unloading points; Indicates the location of the stacker-reclaimer; Indicates the angle between the cantilever and the yard crane's travel path, + This indicates that the cantilever is placed on the north material bar. This indicates that the cantilever is placed on the south material bar; Indicates the cantilever length of the stacker-reclaimer; Indicates the stacker-reclaimer's pitch angle, + Indicates the angle of elevation, - Indicates the angle of depression.

7. A method for calculating unloading operations, characterized in that, The unloading operation calculation system according to any one of claims 1-6 includes: Step S1: Based on the arrival plan, shipping schedule information, material yard information and delivery plan, prepare the corresponding terminal unloading operation plan and material yard operation plan, and check the unloading operation plan at the planning level through the unloading mixed stacking early warning model; Step S2: Based on the cargo location division of the yard, generate a real-time dynamic map of the yard to achieve comprehensive management of cargo during port production operations. Step S3: Obtain the real-time operating status and workload of various equipment in the port area, provide early warnings for maintenance and scrapping / renewal, and realize full life cycle management of port operating equipment; Step S4: The port machinery operator uses the port machinery operator's wireless terminal APP to carry out unloading operations according to the unloading operation plan; The ship unloading mixing early warning model provides early warning of mixing during ship unloading operations from both the planning and operational levels. Step S5: The instantaneous flow rate of the belt scale, the number of grab buckets closed, and the direction information of the stacker-reclaimer are obtained in real time through the port area data acquisition system. By using the terminal, port machinery and belt operation information, the current status of the operating vessel, the port machinery operation status, the instantaneous flow rate of the belt scale, the cumulative volume of the belt scale, the corresponding cargo type of the belt scale and the operation status of the belt are obtained. The information is displayed in real time through a visual screen to realize real-time dynamic management of the entire process of bulk cargo terminal operations.

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