Unattended weighing method for unattended loading and unloading of container

Abstract

The invention relates to a container unattended weighing method, relates to the field of intelligent management of port logistics, and provides a whole-process unattended solution aiming at the defects that in the prior art, a container number depends on manual verification, container identification equipment is high in cost, a service type needs to be judged manually, and weighing data is tampered easily. The core of the method comprises the steps that a wharf operating system pre-binds a license plate number, and a loading and unloading equipment (gantry crane, reach stacker and stacker) equipment terminal confirms a three-level binding relation from a box number to a specified vehicle number and an operation number; when a vehicle is loaded on the weighbridge, the weighbridge automatically calls binding data through license plate recognition, and container entity recognition requirements are avoided; automatically judging a service type according to a vehicle moving line; and associating double weighing data based on three-level mapping, and calculating net weight in real time to generate a tamper-proof operation record. According to the method, unmanned operation in the whole weighing process is realized, the efficiency is improved, the hardware cost is reduced, the operation data has complete traceability, and key technical support is provided for harbor intelligence.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent management of port logistics, in particular to a container unloading and loading unattended weighing method. BACKGROUND

[0002] The current container terminal unloading and loading weighing operation mainly relies on manual operation mode: after the customer submits a paper or electronic plan sheet, the dispatcher arranges the work operation, and the ground weight operator manually inputs the license plate number and container number when the vehicle is weighed. The weighing data is saved by the ground weight operator manually clicking the mouse. Although the existing automatic scheme attempts to introduce a container OCR recognition device, manual intervention is still required for the association of the container number and the work plan.

[0003] This mode has significant bottlenecks: information fragmentation risk: manual checking leads to mismatched container numbers and high error rate of plan sheet association; cost and efficiency imbalance: significant investment in container recognition devices, and significant impact of weather and contamination on recognition rate; regulatory loopholes: manual records are easily tampered with, and there is a lack of anti-cheating traceability mechanism; process lag: long time for single operation, vehicle gate congestion is normalized, which seriously restricts the throughput capacity of the terminal.

[0004] Therefore, a container unloading and loading unattended weighing method is needed to solve the above problems. SUMMARY

[0005] The present application provides a container unloading and loading unattended weighing method to solve the problems of the prior art.

[0006] To solve the above technical problems, the present application is realized by the following technical scheme: a container unloading and loading unattended weighing method, comprising the following steps:

[0007] S1: the customer submits the work plan online, and the system generates a plan sheet binding a unique work number;

[0008] S2: the dispatcher system assigns a specified vehicle license plate number to the plan sheet, and establishes a binding relationship between the vehicle license plate number and the work number;

[0009] S3: when the vehicle is weighed, the ground weight is automatically captured by the vehicle recognition instrument;

[0010] S4: the system retrieves the bound container number according to the license plate number, retrieves the corresponding work plan, triggers the first weighing and records the load weight;

[0011] S5: the vehicle takes the container according to the plan sheet and completes the unloading and loading operation;

[0012] S6: when the container returns to the second weighing, the system identifies the license plate number again, and automatically associates the bound container number and the work plan;

[0013] S7: The system determines the operation type as "unloading" or "loading", matches the operation number based on the container number, automatically submits the heavy load weighing data, and generates a complete operation record.

[0014] In the present application, through the whole-process online driving and intelligent data pre-binding mechanism, the traditional container unloading and loading weighing operation mode is completely innovated. In the initial link, after the customer submits the operation plan online, the system automatically generates a unique operation number and completes the intelligent binding of the container number and the vehicle number, eliminating the manual verification link from the source and reducing the risk of container number mismatch; when the vehicle is weighed, the platform scale accurately captures the license plate number through the vehicle identification instrument, automatically associates the pre-bound operation plan and container number with the license plate as the unique medium, successfully avoids the need for container entity identification, reduces the hardware cost by 60%, and achieves an identification accuracy of >99.8%. The double weighing data is managed in a closed loop through a three-level automatic traceability chain of "license plate number, container number, and operation number": the system intelligently determines the business type ("unloading operation" or "loading operation") based on the vehicle route, automatically calculates the empty load / heavy load weight difference to generate the net weight of the goods, completely eliminates manual intervention, and compresses the single-vehicle processing time to within 1 minute, and establishes an anti-cheating barrier - any data tampering must simultaneously break through the three verification of license plate recognition, system binding, and operation record. This scheme simultaneously releases significant benefits: human cost savings of up to 3.6 million yuan per year at a single terminal, and an increase in container throughput; realizes the dual improvement of port operation safety and efficiency, and only requires a transformation cost of 200,000 yuan / platform scale to adapt to the global mainstream terminal system, providing a high-performance cost-effective technical paradigm for port intelligent upgrading.

[0015] In a specific embodiment, the container number association of steps S4 and S6 only relies on pre-bound data, without the need to identify the container entity number.

[0016] In a specific embodiment, the license plate number serves as the unique trigger medium, and the system realizes automatic association of the two weighing data through a three-level mapping of "license plate number, container number, and operation number".

[0017] In a specific embodiment, the first weighing S4 and the second weighing S6 data automatically calculate the net weight of the goods, and the operation record is synchronized in real time to the terminal operation system.

[0018] The beneficial effects of the present application are:

[0019] 1. Through the whole-process intelligent cooperation and data pre-binding mechanism, the core pain points of manual intervention and low efficiency in container unpacking and packing operation are fundamentally solved. Based on the automatic triggering of license plate number, the hardware dependence of traditional container entity identification is completely avoided, the system construction cost is significantly reduced while ensuring the accuracy of operation. Through the operation number throughout the whole process of "taking out the box, disassembling, returning to the field", the automatic closed-loop management of business data is realized, and the single operation time is compressed to less than 1 minute, which improves the efficiency by 58% compared with the full manual operation. The whole process eliminates the manual verification link, avoids mismatching of box numbers and data errors, and makes the weighing operation from discrete manual supervision to continuous intelligent control;

[0020] 2. Relying on the three-level automatic mapping system of "license plate number-box number-operation number", an unalterable data evidence chain is constructed. The strong binding of empty load and heavy load data ensures the complete traceability of the calculation result of the net weight of goods, and any data tampering needs to break through the three verification barriers of license plate recognition, system binding and operation record, which greatly improves the cheating cost. This scheme also enables the upgrading of digital management of the port: automatic early warning of abnormal state to block operation risk, electronic record to realize operation traceability throughout the whole process; real-time synchronization of data in the port operation system greatly improves the resource allocation efficiency, and provides zero-failure and high-robustness underlying technical support for port operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the operation process schematic diagram of the present application. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0023] As Figure 1 shown, a kind of container unpacking and packing unattended weighing method.

[0024] 1. System architecture deployment hardware configuration:

[0025] Intelligent weighbridge system is deployed in the access channel of container terminal, and each weighbridge is integrated with:

[0026] Dynamic license plate recognition instrument (5 million pixels, support rain and fog weather recognition);

[0027] Weighing sensor (precision ±3000 / 1);

[0028] Data acquisition terminal (industrial grade PLC controller);

[0029] LED display screen (real-time display of license plate number / box number / weight) software system:

[0030] Based on the development of the weighing management module of the terminal TOS (Terminal Operating System) extension, including:

[0031] Job plan binding interface;

[0032] License plate-box number matching engine;

[0033] Business type automatic classifier;

[0034] Weight difference calculation algorithm example scenario: A certain port terminal deploys the weighbridge system at No. 2 gate, the license plate recognition instrument is 3 meters away from the front end of the weighbridge gate, and the vehicle triggers recognition when passing at a speed of ≤5 km / h.

[0035] 2. Job plan binding process

[0036] 1. Online application by customers:

[0037] Customers submit container disassembly and assembly job plans (including information such as consigning unit, box number, license plate number, and quantity) through the web or the terminal WeChat public number, and the system generates a job number (JOB202408150012).

[0038] 2. Allocation of box numbers by dispatchers:

[0039] The terminal operating system automatically allocates available container box numbers (CCLU1234567) and establishes a three-layer binding relationship

[0040] license plate number Box number Job Number Guangdong B12345 CCLU1234567 JOB202408150012

[0041] 3. Unattended weighing core process

[0042] 3.1 First weighing

[0043] The vehicle enters the weighbridge area;

[0044] The license plate recognition instrument captures the vehicle license plate number;

[0045] The system performs matching operations:

[0046] At the key link of the first weighing, the system realizes intelligent data association through structured query language (SQL): after the license plate recognition instrument captures the license plate number "Yue B12345", the system automatically performs a database retrieval operation - queries the box number and job number matching the license plate number in the pre-established binding table. The specific operation logic is: based on the license plate number field for accurate matching retrieval (WHERE license plate number = "Yue B12345"), extract the associated box number field and job number field (SELECT box number, job number) from the binding table. The query engine then returns the deterministic binding result: the box number is "CCLU1234567" and the job number is "JOB202408150012", thereby establishing a three-level data mapping relationship of "license plate number, box number, job number" within milliseconds, providing an automatic decision-making basis without human intervention for subsequent weighing operations.

[0047] 4. Trigger the first weighing:

[0048] The weighing sensor collects the empty weight (16,520 kg);

[0049] Data is written to the record: {job number: JOB202408150012, type: empty, weight: 16520, time: 2024-08-1509:30:25}.

[0050] 3.2 Execution of disassembly and assembly work

[0051] The driver takes the box at the yard according to the job number, and the crane (front crane, gantry crane, forklift, etc.) hoists the specified container according to the job number;

[0052] The disassembly and assembly work (loading at the CFS warehouse of the port) is completed by manual work, and the system automatically monitors the work status;

[0053] 3.3 Second weighing (return to the yard)

[0054] The vehicle carries the container back to the weighbridge;

[0055] The license plate is recognized again, and the system determines the business type:

[0056] The system determines the business type through timing and state coordination: when the vehicle carrying the container enters the weighbridge area, the system detects that the current time is later than the first weighing timestamp, and the status corresponding to the job number is "in work" (indicating that the disassembly and assembly work has started but not completed), then automatically marks the current weighing business type as "return to the yard weighing". This determination logic triggers the overload measurement instruction at the same time, starts the weighing sensor to collect the full load weight, realizes the intelligent promotion of the business process and the accurate linkage of data collection.

[0057] 3. The weighing sensor collects the full load weight (e.g. 32,810 kg)

[0058] 4. Automatically calculate net weight:

[0059] Net weight = 32,810 kg - 16,520 kg = 16,290 kg.

[0060] 5. Generate complete job record:

[0061] The system automatically generates a structured job record after the second weighing is completed, which contains the following core data: job number "JOB202408150012" as the unique traceable identifier, associated container number "CCLU1234567" to clearly identify the job object, tare weight 16,520 kg (first weighing data) and loaded weight 32,810 kg (current return data) to constitute the weight measurement reference, and the net weight of the goods 16,290 kg is automatically calculated by the system; the business type field "unpacking and packing return" indicates that the current business is the return weighing business after the completion of the container job, and the entire operation is completed and recorded at 11:20:18 on August 15, 2024. This data package solidifies the job process through multiple key parameters, forming an unalterable business closed-loop certificate.

[0062] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for unattended weighing of containers during unpacking and packing, characterized in that: The following steps are involved: S1: The customer submits the job plan online, and the system generates a plan sheet with a unique job number. S2: The dispatcher system assigns a designated vehicle license plate number to the plan and establishes a binding relationship between the vehicle license plate number and the operation number; S3: When the transport vehicle is weighed, the scale automatically captures the license plate number through the vehicle identification device; S4: The system searches for the bound container number based on the license plate number, retrieves the corresponding operation plan, triggers the first weighing and records the load capacity; S5: The vehicle picks up the container according to the plan and completes the unpacking and loading operations; S6: When the container returns to the yard for a second weighing, the system recognizes the license plate number again and automatically associates it with the bound container number and operation plan; S7: The system determines the operation type as "unpacking" or "packing", matches the operation number based on the box number, automatically submits the heavy load and weighing data, and generates a complete operation record.

2. The unattended weighing method for container unpacking and packing according to claim 1, characterized in that: The container number association in steps S4 and S6 relies only on pre-bound data and does not require identification of the container physical number.

3. The unattended weighing method for container unpacking and packing according to claim 1, characterized in that: The license plate number is the only triggering medium. The system automatically associates the two weighing data through a three-level mapping of "license plate number, container number, and operation number." 4. The unattended weighing method for container unpacking and packing according to claim 1, characterized in that: The net weight of the goods is automatically calculated using the data from the first weighing (S4) and the second weighing (S6), and the operation records are synchronized to the dispatching system in real time.

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