A microwave door moisture quality inspection unattended system and method

Abstract

The present application relates to a kind of microwave door moisture quality inspection unattended system and method, system includes: reservation module, the reservation module is used to obtain the factory entry reservation information of vehicle;License plate automatic identification module, license plate automatic identification module is used to obtain the license plate data of vehicle entering microwave door;System check and barrier control module, system check and barrier control module are used to judge whether vehicle meets microwave door moisture detection condition, if meet, then open the import barrier of microwave door;Signal acquisition module, signal acquisition module is used to collect the working state signal of microwave door support;Data interface docking module, data interface docking module is used to the two-way data interaction between ERP system and Bach microwave door system.The process of realizing microwave door moisture detection does not need personnel to keep watch, greatly saves manpower cost, eliminates the problem of factory traffic jam caused by personnel off-duty, data is automatically transferred, eliminates manual input error, improves detection traffic efficiency.

Description

Technical Field

[0001] This application relates to the field of papermaking technology, specifically to an unattended microwave gate moisture quality inspection system and method. Background Technology

[0002] In the waste paper raw material acceptance process of the paper industry, moisture content is a crucial quality indicator affecting waste paper pricing and subsequent production processes. Currently, paper companies commonly use microwave gates to conduct penetrating moisture detection on trucks transporting waste paper.

[0003] Traditional microwave gate moisture detection operations are conducted manually. The specific workflow is as follows: After a truck transporting waste paper is weighed on a weighbridge, it enters the microwave gate detection area. The operator first collects a weighbridge slip from the driver, then manually enters the license plate number, weighbridge slip number, and the corresponding paper type to be tested into the Bach microwave gate system based on the slip information. After the vehicle comes to a complete stop, the operator presses the start button to trigger the microwave gate detection. After the detection is completed, the operator manually enters the test results into the ERP system and then manually opens the exit gate to allow the vehicle to pass.

[0004] The microwave gate area is managed by the company's raw material quality inspection department. Since the company has two sets of Bach microwave gates operating simultaneously, they need to process approximately 200-300 truckloads of waste paper for moisture testing daily, working from 7:30 AM to 11:30 PM, a total of 16 hours. A three-shift, two-rotation system is used, with one person required to operate each microwave gate, requiring a total of six operators working in shifts to maintain operation. The work is highly repetitive and labor costs are high.

[0005] Existing microwave gate moisture detection systems that rely on manual monitoring have the following drawbacks:

[0006] Disadvantage 1: High labor costs. Two microwave gates require 6 people to work in three shifts to cover the 16-hour daily operation period. The operators' work is highly repetitive, consisting only of data entry and button operation. The utilization rate of human resources is low, and due to the limitations of the labor intensity, there is a risk of human error due to long-term repetitive work.

[0007] Disadvantage 2: Dependence on personnel leads to vehicle queues and congestion within the factory. When staff members leave their posts briefly for personal needs such as meals or bathroom breaks, vehicles arriving at the microwave gate cannot complete the inspection and must wait for the staff to return, which easily causes vehicle queues and congestion within the factory, increases driver waiting time, and also affects the overall efficiency of raw material logistics.

[0008] Disadvantage 3: Manual data entry carries the risk of errors and makes anomaly tracing difficult. Key information such as license plate numbers and paper types in the Bach microwave gate system relies entirely on manual entry. When a batch of waste paper shows abnormal moisture content requiring quality tracing, errors in previous manual entry will prevent the Bach system from accurately locating the original inspection data for the corresponding vehicle, making quality tracing and liability determination difficult.

[0009] Disadvantage 4: Low single-pass efficiency. In manual operation mode, from collecting the ticket, entering the information, pressing the button to start the process and manually opening the gate, each vehicle takes an average of about 5 minutes, which restricts the vehicle throughput capacity of the microwave gate area and cannot meet the demand for significantly improved raw material logistics efficiency. Summary of the Invention

[0010] In view of the above problems, this application provides an unattended microwave gate moisture quality inspection system and method, which solves the problems of high labor costs, reliance on personnel leading to vehicle queues and congestion, and the risk of errors in manual data entry in existing microwave gate moisture detection systems that use manual operation mode.

[0011] To achieve the above objectives, the inventors provide a microwave gate moisture quality inspection unattended system, comprising the following steps:

[0012] The reservation module is used to obtain vehicle entry reservation information, which includes the vehicle's license plate number.

[0013] Automatic license plate recognition module, which is used to acquire license plate data of vehicles entering the microwave gate;

[0014] The system verification and barrier gate control module is used to determine whether a vehicle meets the conditions for microwave gate moisture detection based on the acquired license plate data. If it does, the inlet barrier gate of the microwave gate is opened, and the outlet barrier gate of the microwave gate is opened after the detection is completed.

[0015] The signal acquisition module is used to acquire the working status signal of the microwave gate bracket;

[0016] The data interface module is used for bidirectional data interaction with the ERP system and the Bach microwave gate system.

[0017] In some embodiments, the automatic license plate recognition module includes:

[0018] The first camera is installed at the entrance of the microwave gate and is used to acquire the license plate data of vehicles that are about to enter the microwave gate.

[0019] The second camera is located at the exit of the microwave gate and is used to acquire license plate data of vehicles parked inside the microwave gate.

[0020] In some embodiments, it also includes:

[0021] A video surveillance linkage system is used to acquire video data of vehicles inside the microwave gate in real time.

[0022] In some embodiments, the operating status signal of the microwave gate bracket includes the Modbus signal of the microwave gate bracket and the relay signal of the microwave gate bracket return limit switch.

[0023] In some embodiments, it also includes:

[0024] The re-inspection module is used to obtain the moisture value of the vehicle after it has passed through the microwave gate and to record the results of the manual re-inspection.

[0025] In some embodiments, the system verification and gate control module is further configured to monitor whether a vehicle has left the microwave gate via radar after the microwave gate exit gate is opened, and to close the microwave gate exit gate when the vehicle leaves the microwave gate.

[0026] In some embodiments, it also includes:

[0027] A moisture query report module is used to display moisture detection results in real time.

[0028] In some embodiments, it also includes:

[0029] A physical start switch is used by the vehicle driver to activate the microwave door detection.

[0030] In some embodiments, the microwave gate moisture detection conditions include whether a weighing test has been completed and whether the moisture has been assigned to the current microwave gate.

[0031] Another technical solution is also provided: an unattended method for microwave gate moisture quality inspection, applied to the unattended microwave gate moisture quality inspection system described above, including the following steps:

[0032] Obtain vehicle entry reservation information, including the vehicle's license plate number;

[0033] After completing the initial weighing, once confirmation information is obtained that microwave gate moisture testing is required, the system automatically assigns the corresponding microwave gate to the vehicle for moisture testing.

[0034] When a vehicle arrives at the microwave gate detection area, the vehicle's license plate number is obtained through the first camera;

[0035] Determine whether the current vehicle meets the conditions for microwave gate moisture detection based on the identified vehicle's license plate number;

[0036] If the conditions for microwave gate moisture detection are met, the microwave gate entrance barrier gate opening command will be executed.

[0037] Once the vehicle enters the microwave gate channel, the vehicle's license plate number is obtained through the second camera, and the microwave gate moisture detection is linked to the obtained license plate number.

[0038] Once the microwave gate start signal is received, interface information is sent to the ERP system and the Bach microwave gate system.

[0039] After receiving the microwave gate detection completion signal, send interface information to the Bach microwave gate system;

[0040] Upon receiving the relay signal from the microwave gate bracket return limit switch, the microwave gate exit barrier will automatically open.

[0041] If the vehicle has been detected to have left, the exit gate will be closed.

[0042] Unlike existing technologies, the above technical solution requires drivers to make an appointment through a reservation module before entering the factory area to obtain vehicle entry reservation information. When a vehicle needs to undergo microwave gate moisture detection, the automatic license plate recognition module automatically acquires the vehicle's license plate data upon arrival at the corresponding microwave gate monitoring area. Then, the system verification and barrier gate control module determines whether the vehicle meets the microwave gate moisture detection conditions based on the license plate data. If it does, the entrance barrier gate of the microwave gate is opened, allowing the vehicle to enter the microwave gate channel for moisture detection. The signal acquisition module collects the working status signal of the microwave gate support and determines whether the moisture detection is complete based on the working status signal of the microwave gate support. Once the detection is complete, the system verification and barrier gate control module opens the exit barrier gate of the microwave gate, allowing the vehicle to leave the microwave gate channel. Simultaneously, the data interface module connects with the ERP system and the Bach microwave gate system, enabling the ERP system to poll the Bach microwave gate system for the moisture results of vehicles inside the microwave gate during the moisture detection period. The microwave gate moisture detection process requires no personnel on duty, significantly saving labor costs, eliminating the problem of traffic congestion caused by personnel leaving their posts, and automatically transferring data to eliminate manual input errors and improve detection and passage efficiency.

[0043] The above description of the invention is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0044] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.

[0045] In the accompanying drawings of the instruction manual:

[0046] Figure 1 This is a schematic diagram of a structure of the microwave gate moisture quality inspection unattended system described in a specific implementation;

[0047] Figure 2 This is a flowchart illustrating one embodiment of the unattended microwave gate moisture quality inspection method.

[0048] Figure 3 This is a schematic diagram of a system architecture for the microwave gate moisture quality inspection unattended system described in a specific implementation.

[0049] Figure 4 This is a schematic diagram of a business process of the microwave gate moisture quality inspection unattended system described in a specific implementation.

[0050] The reference numerals used in the above figures are explained as follows:

[0051] 110. Reservation Module

[0052] 120. Automatic license plate recognition module.

[0053] 130. System verification and barrier gate control module.

[0054] 140. Signal acquisition module,

[0055] 150. Data interface docking module. Detailed Implementation

[0056] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0057] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0058] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0059] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0060] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0061] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0062] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0063] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0064] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0065] Please see Figure 1 This embodiment provides an unattended microwave gate moisture quality inspection system, including the following steps:

[0066] The reservation module 110 is used to obtain vehicle entry reservation information, including the vehicle's license plate number. The reservation module 110 adopts a mini-program reservation module 110, which is used for drivers to scan the code to make a reservation before entering the factory and fill in basic vehicle information such as the license plate number, so as to provide a data foundation for subsequent automatic identification and verification.

[0067] Automatic license plate recognition module 120, which is used to acquire license plate data of vehicles entering the microwave gate;

[0068] The system verification and barrier gate control module 130 is used to determine whether a vehicle meets the conditions for microwave gate moisture detection based on the acquired license plate data. If it does, the inlet barrier gate of the microwave gate is opened, and the outlet barrier gate of the microwave gate is opened after the detection is completed.

[0069] Signal acquisition module 140, the signal acquisition module 140 is used to acquire the working status signal of microwave gate bracket;

[0070] The data interface module 150 is used for bidirectional data interaction with the ERP system and the Bach microwave gate system. ERP (Enterprise Resource Planning) refers to the Kingdee Cloud Xinghan ERP system used for waste paper weighing, moisture data collection, quality management, and settlement. Bach microwave gate is a microwave moisture measuring device manufactured by the German company Bach, used for penetrating detection of the moisture content of waste paper inside trucks.

[0071] When a vehicle enters the factory area, the driver needs to make an appointment through the appointment module 110 to obtain the vehicle's entry appointment information. When the vehicle needs to undergo microwave gate moisture detection, when the vehicle arrives at the corresponding microwave gate monitoring area, the license plate automatic recognition module 120 automatically obtains the vehicle's license plate data. Then, the system verification and barrier gate control module 130 judges whether the vehicle meets the microwave gate moisture detection conditions based on the vehicle's license plate data. If it does, the microwave gate's entrance barrier gate is opened, and the vehicle enters the microwave gate channel for moisture detection. The signal acquisition module 140 collects the working status signal of the microwave gate support and judges whether the moisture detection is completed based on the working status signal of the microwave gate support. When the detection is completed, the system verification and barrier gate control module 130 opens the microwave gate's exit barrier gate, allowing the vehicle to leave the microwave gate channel. At the same time, the data interface docking module 150 docks with the ERP system and the Bach microwave gate system, so that the ERP system polls the Bach microwave gate system for the moisture results of the vehicles inside the microwave gate during the moisture detection period. The microwave gate moisture detection process requires no personnel on duty, significantly saving labor costs, eliminating the problem of traffic congestion caused by personnel leaving their posts, and automatically transferring data to eliminate manual input errors and improve detection and passage efficiency.

[0072] In some embodiments, the automatic license plate recognition module 120 includes:

[0073] The first camera is installed at the entrance of the microwave gate and is used to acquire the license plate data of vehicles that are about to enter the microwave gate.

[0074] The second camera is located at the exit of the microwave gate and is used to acquire license plate data of vehicles parked inside the microwave gate.

[0075] The automatic license plate recognition module 120 uses two cameras. The first camera is set at the entrance of the microwave gate to acquire data on vehicles waiting to enter the microwave gate and to verify whether the vehicles meet the moisture detection conditions of the microwave gate. The second camera is set at the exit of the microwave gate to acquire license plate data of vehicles parked in the microwave gate channel. This is used to accurately identify the license plate data of vehicles in the microwave gate channel, avoiding data mismatch caused by the entrance camera capturing vehicles queuing behind. The license plate data captured by the second camera is bound to the data acquired by the microwave gate moisture detection.

[0076] In some embodiments, it also includes:

[0077] A video surveillance linkage system is used to acquire video data of vehicles inside the microwave gate in real time.

[0078] The video monitoring linkage module acquires video data of vehicles inside the microwave gate, providing managers with real-time viewing of the inspection site. The video monitoring linkage module is equipped with three monitoring cameras for each microwave gate, corresponding to the front, body, and rear of the vehicle, respectively.

[0079] In some embodiments, the operating status signal of the microwave gate bracket includes the Modbus signal of the microwave gate bracket and the relay signal of the microwave gate bracket return limit switch.

[0080] The signal acquisition module 140 acquires the Modbus signal from the microwave gate support. When the Modbus signal changes from 0 to 1, detection begins; when it changes from 1 to 0, detection ends. This signal is used to drive data synchronization. When the relay signal of the microwave gate support's return limiter is triggered, it indicates that the microwave gate support has returned to its original position. The system verification and barrier gate control module 130 then opens the entrance barrier of the microwave gate, allowing vehicles to leave. Modbus: an industrial communication protocol used for signal acquisition and control between unattended systems and microwave gate supports.

[0081] In some embodiments, it also includes:

[0082] The re-inspection module is used to obtain the moisture value of the vehicle after it has passed through the microwave gate and to record the results of the manual re-inspection.

[0083] When a vehicle completes microwave gate moisture testing and enters the next quality inspection stage, the quality inspector can obtain the current vehicle's moisture test result through the re-inspection module. If the moisture level exceeds the limit, a manual retest is performed, and the re-inspection result is entered through the re-inspection module. The re-inspection module uses a PDA (Personal Digital Assistant). The quality inspector scans the QR code on the receipt with the PDA to read the moisture value. If the moisture level exceeds the limit, a manual retest is performed, and the re-inspection result is entered through the PDA. PDA refers to a handheld terminal device, specifically the mobile scanning and data entry device used by raw material quality inspectors.

[0084] In some embodiments, the system verification and gate control module 130 is further configured to monitor whether a vehicle has left the microwave gate via radar after the microwave gate exit gate is opened, and to close the microwave gate exit gate when the vehicle leaves the microwave gate.

[0085] When the microwave gate exit barrier is opened to allow vehicles to leave, the system monitors whether the vehicle has left the microwave gate. Once the vehicle has left the microwave gate, the microwave gate exit barrier is automatically closed.

[0086] In some embodiments, it also includes:

[0087] A moisture query report module is used to display moisture detection results in real time.

[0088] The moisture query report module allows users to view moisture test results in real time, providing managers with real-time data monitoring capabilities. Moisture test results can be viewed via PC or mobile device.

[0089] In some embodiments, it also includes:

[0090] A physical start switch is used by the vehicle driver to activate the microwave door detection.

[0091] Once the driver has brought the vehicle to a complete stop inside the microwave gate, the moisture detection system can be activated via a physical start switch located on the pillar next to the driver's seat. In other embodiments, a radar monitoring module can also be used to monitor the vehicle's movement inside the microwave gate until it comes to a complete stop, at which point the moisture detection system will automatically activate.

[0092] In some embodiments, the microwave gate moisture detection conditions include whether a weighing test has been completed and whether the moisture has been assigned to the current microwave gate.

[0093] After passing through the gate security check, the vehicle enters the weighbridge for initial weighing. The weighbridge operator verifies the license plate information with the driver, confirms whether microwave gate moisture testing is required, and after weighing, the system automatically assigns the vehicle to a specific microwave gate for moisture testing. This step ensures a binding relationship between the testing request and a specific microwave gate, providing a basis for subsequent entry verification.

[0094] Please see Figure 2 In another embodiment, a method for unattended microwave gate moisture quality inspection, applied to the unattended microwave gate moisture quality inspection system as described above, includes the following steps:

[0095] Obtain vehicle entry reservation information, including the vehicle's license plate number;

[0096] After completing the initial weighing, once confirmation information is obtained that microwave gate moisture testing is required, the system automatically assigns the corresponding microwave gate to the vehicle for moisture testing.

[0097] When a vehicle arrives at the microwave gate detection area, the vehicle's license plate number is obtained through the first camera;

[0098] Determine whether the current vehicle meets the conditions for microwave gate moisture detection based on the identified vehicle's license plate number;

[0099] If the conditions for microwave gate moisture detection are met, the microwave gate entrance barrier gate opening command will be executed.

[0100] Once the vehicle enters the microwave gate channel, the vehicle's license plate number is obtained through the second camera, and the microwave gate moisture detection is linked to the obtained license plate number.

[0101] Once the microwave gate start signal is received, interface information is sent to the ERP system and the Bach microwave gate system.

[0102] After receiving the microwave gate detection completion signal, send interface information to the Bach microwave gate system;

[0103] Upon receiving the relay signal from the microwave gate bracket return limit switch, the microwave gate exit barrier will automatically open.

[0104] If the vehicle has been detected to have left, the exit gate will be closed.

[0105] When a vehicle enters the factory area, the driver needs to make an appointment through the appointment module 110 to obtain the vehicle's entry appointment information. After completing the initial weighing and obtaining confirmation information for microwave gate moisture testing, the system automatically assigns the corresponding microwave gate to the vehicle for moisture testing. When a vehicle needs to undergo microwave gate moisture testing, upon arriving at the corresponding microwave gate monitoring area, the license plate recognition module 120 automatically acquires the vehicle's license plate data. Then, the system verification and barrier gate control module 130 determines whether the vehicle meets the conditions for microwave gate moisture testing based on the license plate data. If it does, the entrance barrier gate of the microwave gate is opened, and the vehicle enters the microwave gate channel for moisture testing. The signal acquisition module 140 collects the working status signal of the microwave gate support and determines whether the moisture testing is complete based on the working status signal of the microwave gate support. When the testing is completed, the system verification and barrier gate control module 130 opens the exit barrier gate of the microwave gate, allowing the vehicle to leave the microwave gate channel. Simultaneously, the system interfaces with the ERP system and the Bach microwave gate system through the data interface module 150, enabling the ERP system to poll the Bach microwave gate system for the moisture results of vehicles inside the microwave gate during the moisture testing period. The microwave gate moisture detection process requires no personnel on duty, significantly saving labor costs, eliminating the problem of traffic congestion caused by personnel leaving their posts, and automatically transferring data to eliminate manual input errors and improve detection and passage efficiency.

[0106] In some embodiments, a microwave gate moisture quality inspection unmanned system and method are provided, aiming to solve the pain points of the traditional manual operation mode. The core idea is to build an unmanned intervention system covering the entire process of "vehicle entry → information verification → automatic detection → data collection → vehicle release" through technologies such as automatic license plate recognition, automatic data interface docking of multiple systems, automatic Modbus signal acquisition and automatic gate control, fundamentally eliminating the dependence on manual operation.

[0107] The overall architecture of the system is as follows Figure 3 As shown, it mainly includes the following functional modules:

[0108] Mini Program Reservation Module: This module allows drivers to scan a code to make a reservation before entering the facility and fill in basic vehicle information such as license plate number, providing a data foundation for subsequent automatic identification and verification.

[0109] Automatic license plate recognition module: A license plate recognition camera is installed at both the entrance and exit of the microwave gate. The entrance camera is used to verify whether the vehicle meets the moisture detection conditions, and the exit camera is used to accurately identify the license plates of parked vehicles, avoiding data corruption caused by the entrance camera capturing images of vehicles queuing behind.

[0110] System verification and barrier gate control module: After the license plate is recognized at the entrance, the ERP interface is called for verification to determine whether the vehicle meets the conditions for microwave moisture detection. If the verification is successful, the entrance barrier gate is opened; after the detection is completed, the exit barrier gate is automatically opened; after the vehicle leaves, the radar detection automatically closes the barrier gate.

[0111] Signal acquisition module: Acquires Modbus signals from the microwave gate support (0→1 indicates detection start, 1→0 indicates detection end) and relay signals from the support return limit switch, using these as trigger conditions to drive data synchronization and gate control.

[0112] Data interface integration module: Enables bidirectional data interaction between the unattended system and the Kingdee Cloud Xinghan ERP system and Bach microwave door system. This includes the data acquisition mechanism for the ERP system to query the Bach system for moisture content results.

[0113] Moisture query report module (dashboard): Moisture test results can be viewed in real time on both PC and mobile devices, providing managers with real-time data monitoring capabilities.

[0114] Video surveillance linkage module: Each microwave gate is equipped with 3 surveillance cameras (front, body, and rear) for managers to view the inspection site in real time.

[0115] Re-inspection module: When a vehicle enters the next quality inspection stage, the quality inspector scans the QR code on the receipt with a PDA to read the moisture value. If the value exceeds the standard, the vehicle is manually retested and the retest result is entered into the PDA.

[0116] The complete workflow of the method is as follows Figure 4 As shown, the specific steps include:

[0117] S1. Drivers can schedule a factory entry appointment by scanning a QR code via the driver's mini-program.

[0118] Drivers complete their vehicle entry appointment by scanning a QR code and filling in basic information such as their license plate number through a mini-program. This step provides basic data support for subsequent automatic identification and information verification, ensuring that vehicle information entering the microwave gate detection area has been pre-entered into the system.

[0119] S2, Security check at the gate and weighbridge inspection.

[0120] After passing through the gate security check, the driver enters the weighbridge for initial weighing. The weighbridge operator verifies the vehicle's license plate information with the driver, confirms whether microwave gate moisture testing is required, and after weighing, the system automatically assigns the vehicle to a specific microwave gate for moisture testing. This step ensures a binding relationship between the testing request and a specific microwave gate, providing a basis for subsequent entry verification.

[0121] S3. When a vehicle enters the microwave gate entrance, the license plate is automatically recognized.

[0122] When the driver arrives at the assigned microwave gate detection area, the license plate recognition camera at the entrance of the microwave gate automatically captures and identifies the license plate number.

[0123] S4, ERP Interface Verification and Barrier Gate Control

[0124] The system calls the Kingdee Cloud Xinghan ERP system interface to verify whether the vehicle meets the moisture detection conditions of the microwave gate based on the identified license plate number, including whether it has completed the first-stage weighing and whether it has been assigned to the current microwave gate. After the verification is successful, the system executes the entrance gate opening command, and the vehicle enters the microwave gate channel. The purpose of this step is to ensure that only vehicles that meet the detection conditions enter the moisture detection channel and avoid wrongful passage.

[0125] S5. Vehicle coming to a complete stop and exit license plate recognition

[0126] After the driver brings the vehicle to a complete stop within the microwave gate, the license plate recognition camera at the exit accurately identifies the license plate of the stopped vehicle. The importance of this step lies in the fact that relying solely on the entrance license plate recognition system might capture the license plates of vehicles queuing behind, while the exit camera, positioned directly above a stopped vehicle, can accurately identify the target vehicle for this detection, avoiding data corruption.

[0127] S6. The driver presses the start switch, triggering the Modbus signal.

[0128] After the vehicle comes to a complete stop, the driver presses the physical start switch located on the support bar next to the driver's seat. The unattended system collects the signal change (from 0 to 1) of the microwave gate bracket via the Modbus protocol, determining that the detection has begun. Subsequently, the system simultaneously sends interface information to both the Kingdee Cloud Xinghan ERP system and the Bach microwave gate system, informing both systems which vehicle has started detection. This step achieves full automation of detection triggering and data synchronization, replacing the original manual data entry and button operation.

[0129] S7, Bach performs moisture testing

[0130] The microwave door bracket, carrying microwave detection equipment, moves from the rear of the carriage at the front to the rear of the carriage, performing a complete inspection to measure the moisture content of the waste paper throughout the entire carriage.

[0131] S8, Detection complete and Bach notification

[0132] When the microwave gate bracket reaches the limit switch area indicating the end of the test, the Modbus signal changes from 1 to 0. Upon detecting this signal change, the unattended system immediately sends interface information to the Bach system, informing it that the test process has ended. Simultaneously, after receiving the test start signal, the Kingdee Cloud Xinghan ERP system automatically initiates an API request to Bach every 20 seconds to poll and obtain the moisture content data of the currently tested vehicle.

[0133] S9, Support return triggers outlet gate opening

[0134] When the microwave gate support returns to its initial position via the limit switch, a relay signal is triggered, automatically opening the exit barrier. Once the barrier is open, the driver can drive away from the microwave gate, completing the inspection. This design ensures automatic linkage between inspection completion and passage release, requiring no manual intervention.

[0135] S10. Vehicle departure and automatic gate closure.

[0136] After the vehicle leaves the microwave gate area, the radar of the exit gate detects that the vehicle has left and automatically closes the gate to prepare for the next inspection vehicle.

[0137] S11, Real-time Data Query and Video Monitoring

[0138] Managers can view real-time moisture detection data anytime via PC or mobile reports. Meanwhile, each microwave gate is equipped with three monitoring cameras (front, body, and rear) to provide real-time monitoring of the site, allowing managers to monitor the microwave gate's operation status from their office.

[0139] S12, Abnormal Re-inspection Processing

[0140] When the vehicle enters the next quality inspection stage, the raw material quality inspector scans the QR code on the unloading slip using a PDA device. The PDA then displays the microwave gate moisture content of the waste paper in that vehicle. If the moisture content exceeds the standard, the quality inspector manually retests the moisture content. The retest result is then manually entered into the system via the PDA, forming a complete closed loop for anomaly handling.

[0141] In practical application, this solution yielded the following sets of data:

[0142] Group 1: Error prevention effectiveness data;

[0143] Verification objective: To determine the reduction in error rate of the dual-camera recognition solution in license plate binding compared to the single-camera solution.

[0144]

[0145]

[0146] Error rate analysis logic:

[0147]

[0148] Comparison data table:

[0149]

[0150] Data Explanation:

[0151] Analysis logic for error rate of single-camera solution:

[0152] A single camera is installed at the entrance of the microwave gate. The trigger method is to capture a license plate and then synchronize with the Bach system. When there are queuing vehicles behind the detected vehicle, the entrance camera's field of view will inevitably cover the license plates of the queuing vehicles. Therefore, when the data synchronization is triggered, the license plate of the queuing vehicle is actually transmitted, resulting in an error in the binding of the license plate and the detection data. The triggering of this error is deterministic—as long as there is a queuing scenario, the binding will inevitably fail, with an error rate of 100%. According to the scheduling records of the Kingdee / Bach system, the two microwave gates detect an average of 290 vehicles per day (145 vehicles per day per set), of which 230 vehicles have queuing vehicles behind them at the time of detection, and the queuing ratio is 230 ÷ 290 ≈ 79.3%. Therefore, the overall error rate of the single-camera solution is 79.3% (= queuing ratio × 100%).

[0153] The principle behind the dual-camera solution to eliminate errors is as follows: A second set of license plate recognition cameras is added at the microwave gate exit. The cameras only recognize vehicles after they have come to a complete stop, at which point subsequent queuing vehicles have not yet entered the channel, and there is no interference from vehicles behind. The recognition result of the exit camera serves as the bound license plate for this detection, fundamentally eliminating errors in queuing scenarios. Actual operation records after going online show that the license plate matching consistency rate at the entrance and exit reaches 100%, and the error rate is reduced to 0%.

[0154] Second set: Traffic efficiency data:

[0155] Verification objective: To compare the time taken for the entire process of single-vehicle moisture detection (from license plate recognition to exit gate opening and departure) and evaluate the effect of unmanned operation on improving traffic efficiency.

[0156]

[0157] Breakdown of bicycle operation steps and time consumption:

[0158]

[0159] Efficiency comparison data table:

[0160]

[0161] Data Explanation:

[0162] Analysis of manned operation time: Pure operation time is about 4 minutes per vehicle, but in actual production, it is significantly affected by personnel attendance. Extreme weather, meal times, restroom breaks, etc., can all cause on-duty personnel to be temporarily absent, which increases the actual average time to about 5 minutes per vehicle. In addition, personnel need to frequently communicate with quality inspection, weighing, material yard and other positions by phone to confirm information, which takes an extra 2 to 5 minutes each time, further reducing the effective operation efficiency. Based on about 290 vehicles per day (two gates combined) and an actual operation time of 5 minutes per vehicle, the throughput of a single gate is only about 12 vehicles per hour. It would take about 24 hours of continuous operation (two gates in parallel) to complete the task.

[0163] Unmanned operation time analysis: License plate recognition to vehicle stop (10 seconds) + fixed inspection time (40 seconds) + automatic gate opening and departure (10 seconds) = a total of about 60 seconds / vehicle, with no manual intervention required throughout the process; unaffected by personnel status, with constant efficiency throughout the day, a single gate can handle up to 60 vehicles per hour, and two gates operating in parallel can complete all inspection tasks for the day in just about 2.4 hours; the system automatically completes Kingdee verification, Modbus signal acquisition, and ERP data synchronization, eliminating all manual communication links.

[0164] Queue clearing time (key engineering significance): The microwave gate inside the factory can only accommodate 7 to 8 vehicles in a queue. If the number exceeds this, temporary vehicle control and flow restriction will be required to prevent waiting vehicles from entering the factory for weighing.

[0165] With staff on duty: Clearing one round of queues takes 35 to 40 minutes, and frequent traffic restrictions are needed during the morning peak hours of waste paper collection, causing vehicle backlog outside the factory;

[0166] Unmanned operation: Clearing a queue takes only 7-8 minutes, greatly improving throughput and basically eliminating the need for traffic restrictions, thus fundamentally alleviating the morning rush hour congestion problem.

[0167] Group 3: Labor Cost Data

[0168] Verification objective: To compare the staffing and annual cost of the microwave gate moisture detection position before and after implementation.

[0169]

[0170] Data Explanation:

[0171] Cost breakdown: The average monthly total investment per person is approximately ¥5,500, including a salary of ¥5,000 and the company's contributions to social security, medical insurance, and subsidies. The company implements a 13th-month salary system, so the annual total human resource cost = monthly human resource cost × 12 + 13th-month salary (calculated based on pre-tax basic salary) = ¥396,000 + ¥30,000 = ¥426,000. The data is calculated based on the company's current salary standards and social security contribution rates, and the statistical methods are consistent with those of the human resources department.

[0172] Benefit Analysis: After the unattended system is put into operation, the microwave door moisture detection position no longer requires personnel to be on duty, directly saving ¥426,000 in labor costs per year; this saving does not include indirect benefits such as the time cost of personnel communication and coordination, and the cost of retrospective investigation and correction caused by misoperation.

[0173] This scheme has the following advantages:

[0174] Advantage 1: Achieves fully unattended operation, significantly reducing labor costs. This invention replaces all manual operations in the traditional model through technologies such as automatic license plate recognition, automatic data interface integration with multiple systems, automatic Modbus signal acquisition, and automatic gate control. Positions that previously required six staff members working in three shifts now only require occasional monitoring by office personnel via a screen, achieving fully unattended operation and significantly reducing labor costs.

[0175] Advantage 2: Completely eliminates traffic congestion within the factory caused by personnel leaving their posts. This invention enables vehicles to be inspected upon arrival, no longer affected by factors such as staff eating or using the restroom. With no staff on duty, the microwave gate can operate continuously, fundamentally solving the problem of vehicle queuing and congestion caused by personnel leaving their posts.

[0176] Advantage 3: Fully automated data flow completely eliminates manual input errors and enables complete quality traceability. This invention completely replaces the manual data entry process in the Bach system through automatic license plate recognition, automatic Modbus signal acquisition, and automatic system interface interaction. The recording and association of all key data, such as license plate number, paper type, and test results, are completed automatically by the system, ensuring data accuracy and consistency. When a batch of waste paper shows abnormal moisture content, the original test data of the corresponding vehicle can be quickly located directly through the system, achieving precise quality traceability.

[0177] Advantage 4: Significantly improves inspection and passage efficiency. This invention reduces the inspection time per vehicle from approximately 5 minutes in manual mode to approximately 1 minute, increasing inspection and passage efficiency by about 5 times. This significantly enhances the vehicle throughput capacity of the microwave gate area, providing strong support for the greatly increased demand for raw material logistics.

[0178] Advantage 5: Real-time data visualization supports management decisions. This invention, through its reporting and video monitoring modules, allows managers to view moisture testing data and on-site footage anytime, anywhere, achieving real-time, visualized management of raw material quality inspection data and providing data support for quality management and supplier performance evaluation.

[0179] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A microwave gate moisture quality inspection unattended system, characterized in that, Includes the following steps: The reservation module is used to obtain vehicle entry reservation information, which includes the vehicle's license plate number. Automatic license plate recognition module, which is used to acquire license plate data of vehicles entering the microwave gate; The system verification and barrier gate control module is used to determine whether a vehicle meets the conditions for microwave gate moisture detection based on the acquired license plate data. If it does, the inlet barrier gate of the microwave gate is opened, and the outlet barrier gate of the microwave gate is opened after the detection is completed. The signal acquisition module is used to acquire the working status signal of the microwave gate bracket; The data interface module is used for bidirectional data interaction with the ERP system and the Bach microwave gate system.

2. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, The automatic license plate recognition module includes: The first camera is installed at the entrance of the microwave gate and is used to acquire the license plate data of vehicles that are about to enter the microwave gate. The second camera is located at the exit of the microwave gate and is used to acquire license plate data of vehicles parked inside the microwave gate.

3. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, Also includes: A video surveillance linkage system is used to acquire video data of vehicles inside the microwave gate in real time.

4. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, The working status signals of the microwave gate support include the Modbus signal of the microwave gate support and the relay signal of the microwave gate support return limit switch.

5. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, Also includes: The re-inspection module is used to obtain the moisture value of the vehicle after it has passed through the microwave gate and to record the results of the manual re-inspection.

6. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, The system verification and gate control module is also used to monitor whether a vehicle has left the microwave gate after the microwave gate exit gate is opened via radar. When the vehicle leaves the microwave gate, the microwave gate exit gate is closed.

7. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, Also includes: A moisture query report module is used to display moisture detection results in real time.

8. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, Also includes: A physical start switch is used by the vehicle driver to activate the microwave door detection.

9. The unattended microwave gate moisture quality inspection system according to claim 1, characterized in that, The moisture detection conditions for the microwave gate include whether a weighing test has been completed and whether it has been assigned to the current microwave gate.

10. A method for unattended microwave gate moisture quality inspection, characterized in that, The microwave gate moisture quality inspection unattended system as described in any one of claims 1-9 includes the following steps: Obtain vehicle entry reservation information, including the vehicle's license plate number; After completing the initial weighing, once confirmation information is obtained that microwave gate moisture testing is required, the system automatically assigns the corresponding microwave gate to the vehicle for moisture testing. When a vehicle arrives at the microwave gate detection area, the vehicle's license plate number is obtained through the first camera; Determine whether the current vehicle meets the conditions for microwave gate moisture detection based on the identified vehicle's license plate number; If the conditions for microwave gate moisture detection are met, the microwave gate entrance barrier gate opening command will be executed. Once the vehicle enters the microwave gate channel, the vehicle's license plate number is obtained through the second camera, and the microwave gate moisture detection is linked to the obtained license plate number. Once the microwave gate start signal is received, interface information is sent to the ERP system and the Bach microwave gate system. After receiving the microwave gate detection completion signal, send interface information to the Bach microwave gate system; Upon receiving the relay signal from the microwave gate bracket return limit switch, the microwave gate exit barrier will automatically open. If the vehicle has been detected to have left, the exit gate will be closed.

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