Solid waste disposal whole-process closed-loop management and control system and method

Abstract

The present application relates to the technical field of intelligent management and control of logistics vehicles, and provides a solid waste disposal full-process closed-loop management and control system and method, which comprises a terminal device and a control device, a data acquisition module generates a track state chain in ascending order of driving-in and weighing time nodes, a state detection module generates a communication interruption locking instruction when no response signal is received, a verification and analysis module identifies abnormal record characteristics that do not include loading and unloading weight data, generates a communication interruption blocking weight according to a fixed value, and when the weight exceeds the limit, a limit control module drives an exit interception terminal to lock the vehicle and leave the path by using a forced interception instruction. The present application solves the technical problem that blind areas of equipment communication monitoring cause illegal vehicles to escape supervision.

Description

Technical Field

[0001] This invention relates to the field of intelligent management and control technology for logistics vehicles, and in particular to a closed-loop management and control system and method for the entire process of solid waste disposal. Background Technology

[0002] The closed-loop solid waste management system for thermal power plants is a comprehensive information platform for managing the transportation of solid waste, integrating numerous software modules and on-site execution devices. On-site IoT sensors distributed across various transportation nodes include license plate recognition terminals, weighbridge sensors, and exit gate controllers. The system's core verification link establishes a data transmission network communication channel, supporting the cloud management server in receiving data collected by on-site sensors and simultaneously completing two-way identity verification of transport vehicles and security verification of business execution processes. Various on-site communication and execution devices directly establish communication connections using wireless communication networks, collectively constructing a complete data interaction and business management framework.

[0003] The conventional solid waste management process primarily relies on front-end IoT data terminals to collect actual operational information of transport vehicles. This information is then received by a cloud-based intelligent management server and compared against a pre-defined electronic whitelist for authorized passage. When a transport vehicle enters the plant gate, it triggers a high-definition edge camera to capture the vehicle's license plate's unique digital characteristics. Subsequently, the cloud application management backend performs a two-way matching operation to verify these characteristics, issuing an electronic authorization command for direct passage to the front-end entrance control gate. Upon entering the weighbridge weighing management node, the core weighing sensor reads the dynamic weight data of the weighed vehicle, which is then uploaded by the front-end data acquisition terminal to the central management database for persistent storage. Based on the dynamic weighing weight data, the central system application server determines that the actual material unloading task has been completed and issues a final electronic release command for safe departure to the exit control gate. This ensures that the various independent management nodes are logically connected sequentially according to their chronological order, forming a closed-loop dynamic management process.

[0004] The existing technical architecture lacks a mechanism for real-time online monitoring of the operational status of front-end IoT devices. This leads to severe blind spots in system communication status monitoring when there are significant fluctuations in the on-site communication network signal or damage to on-site terminal equipment components. Unexpected network outages at the front-end core data acquisition nodes hinder the upward transmission of critical on-site operational information, preventing the synchronous transmission of weighing information to the central control system server. Consequently, the core data verification communication link within the control software system experiences signal connection interruptions and deep business process logic breakdowns. This results in the central command and control server being unable to obtain accurate dynamic weighing verification information due to the complete blockage of critical feedback data streams, thus failing to accurately grasp the actual progress of core material unloading. For example, when the core communication controller of the exit defense line control gate falls offline due to a sudden abnormal network failure, the back-end core data application server lacks corresponding technical detection methods and cannot perceive the unexpected disconnection status of the front-end defense line gate controller. Because the on-site exit defense line control terminal gate is in a normally open, unstructured blocking mode due to abnormal communication failures, vehicles illegally driving without completing their designated material unloading tasks can disregard business approval processes and accelerate away from the controlled plant area. The lack of continuous feedback and monitoring data from core online sensing devices at the central integrated control server prevented the central command and control center from promptly and automatically triggering the emergency interception alarm response mechanism to prevent escape. Furthermore, blind spots in the communication status feedback monitoring of on-site sensor terminals caused a complete breakdown of the communication link for the core verification logic within the application platform system. This lack of a communication feedback security verification mechanism ultimately allowed a large number of non-compliant and abnormal transport vehicles to evade the automated security monitoring of the management system. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a closed-loop management system and method for the entire solid waste disposal process. This invention solves the technical problem that the monitoring blind spots in equipment communication status cause the system verification link to break, leading to illegal vehicles evading supervision.

[0006] To solve the above-mentioned technical problems, the specific contents of the present invention are as follows: In a first aspect, the solid waste disposal closed-loop management and control system provided by the present invention includes terminal equipment and a control device that establishes a communication connection with the terminal equipment. The terminal equipment includes an entry verification terminal, a weighing and measuring terminal, and an exit interception terminal. The entry verification terminal is set up at the entrance of the factory area to collect vehicle entry data, the weighing and measuring terminal is set up in the weighing area inside the factory area to obtain loading and unloading weight data, and the exit interception terminal is set up at the exit of the factory area to perform interception actions to block vehicles from leaving the factory. The control device is used to control the terminal equipment, and the control device includes: The data acquisition module is used to acquire vehicle entry data sent by the factory entry verification terminal and loading and unloading weight data sent by the weighing measurement terminal, extract the entry time node included in the vehicle entry data and the weighing time node included in the loading and unloading weight data, and generate a trajectory state chain including the arrangement order by arranging the vehicle entry data and loading and unloading weight data in ascending order according to the entry time node and the weighing time node. The status detection module is used to send communication detection data packets to the weighing measurement terminal, monitor the response signal returned by the weighing measurement terminal based on the communication detection data packets, and if no response signal is received within a preset time period, obtain the current system time identifier and generate a communication interruption lock command based on the current system time identifier. The verification and analysis module is used to receive the trajectory status chain and communication interruption lock command, identify abnormal record features in the trajectory status chain that do not include loading and unloading weight data, trigger the call to the communication interruption lock command based on the abnormal record features, extract fixed values ​​from the preset blocking value library, generate communication interruption blocking weight based on the fixed values, and output verification and interception indicators including communication interruption blocking weight. The over-limit control module is used to receive verification and interception indicators, extract the value of communication interruption blocking weight included in the verification and interception indicators, generate a forced interception command when the value of the communication interruption blocking weight is greater than the preset safety threshold, send the forced interception command to the exit interception terminal, and use the forced interception command to drive the exit interception terminal to lock the vehicle leaving the path.

[0007] Furthermore, the solid waste disposal closed-loop management and control system of the present invention also includes radio frequency induction base stations arranged on roads inside the plant area as terminal equipment, and the radio frequency induction base stations establish communication connections with the control device. The status detection module is also used to acquire vehicle movement measurement data sent by the radio frequency sensing base station, convert the vehicle movement measurement data into a spatial displacement change value of the vehicle moving towards the weighing area, compare the spatial displacement change value with a preset frequency switching threshold, and when the spatial displacement change value is greater than the preset frequency switching threshold, switch the transmission frequency of the communication detection data packet from the first preset frequency to the second preset frequency, and send the communication detection data packet to the weighing measurement terminal at the second preset frequency.

[0008] Furthermore, in the solid waste disposal closed-loop management system of the present invention, the communication detection data packets are encapsulated using an Ethernet test message protocol with a response check code; The status detection module is also used to count the number of response signals returned by the weighing and measuring terminal within a preset time period, calculate the ratio of the number of response signals to the total number of communication probe data packets sent, designate the ratio as the network link activity index, compare the network link activity index with the preset disconnection threshold, determine that no response signal has been received when the network link activity index is less than the preset disconnection threshold, and extract the current system time identifier and write it into the communication interruption lockout instruction.

[0009] Furthermore, the solid waste disposal closed-loop management system of the present invention also includes a storage material level measurement terminal located below the material unloading area inside the plant. The data acquisition module is also used to acquire the gate opening level signal sent by the factory entry verification terminal and set it as the first business event trigger signal, acquire the weight change variable sent by the storage material level measurement terminal and set it as the second business event trigger signal, acquire the weight zeroing instruction output by the weighing measurement terminal and set it as the third business event trigger signal, and assign business timestamps to the first business event trigger signal, the second business event trigger signal and the third business event trigger signal respectively through the system clock.

[0010] Furthermore, in the solid waste disposal closed-loop management system of the present invention, the data acquisition module is also used to retrieve the first business event trigger signal, the second business event trigger signal, and the third business event trigger signal, which are assigned business timestamps, arrange them in ascending order according to the value of the business timestamps, write the first business event trigger signal, the second business event trigger signal, and the third business event trigger signal arranged in ascending order into the block hash linked list structure for storage, and designate the block hash linked list structure as the trajectory status chain for output to the verification and analysis module.

[0011] Furthermore, in the solid waste disposal closed-loop management system of the present invention, the verification and analysis module is also used to extract the current system time identifier included in the communication interruption lock command and set it as the interruption time node, extract the business timestamp corresponding to the second business event trigger signal and set it as the unloading completion time node, calculate the time difference between the interruption time node and the unloading completion time node, and set the time difference as the time sequence correlation degree output.

[0012] Furthermore, in the solid waste disposal closed-loop management system of the present invention, the verification and analysis module is also used to compare the time-series correlation degree with the preset difference range. When the time-series correlation degree is within the preset difference range, the value of the communication interruption blocking weight is set to the preset maximum value. The abnormal record features and the communication interruption blocking weight are combined to generate verification and interception indicators, and the verification and interception indicators are sent to the over-limit management module.

[0013] Furthermore, the solid waste disposal closed-loop management system of the present invention comprises an outlet interception terminal consisting of a servo motor, a mechanical transmission component connected to the shaft of the servo motor, and an interception crossbar connected to the mechanical transmission component. The over-limit control module is also used to compare the value of the communication interruption blocking weight with the preset security threshold, and generate an over-limit trigger command when the value of the communication interruption blocking weight is greater than the preset security threshold.

[0014] Furthermore, in the solid waste disposal closed-loop control system of the present invention, the forced interception command is a continuous high-level pulse signal; The over-limit control module is also used to output a continuous high-level pulse signal to the exit interception terminal as a forced interception command when an over-limit trigger command is generated. The continuous high-level pulse signal drives the servo motor to run and drives the mechanical transmission components to keep the interception bar in a horizontal blocking state to lock the vehicle from leaving the path.

[0015] Secondly, the solid waste disposal closed-loop management method provided by the present invention is applied to the solid waste disposal closed-loop management system as described above, including: Step 1: Obtain vehicle entry data sent by the factory entry verification terminal and loading / unloading weight data sent by the weighing measurement terminal. Extract the entry time node included in the vehicle entry data and the weighing time node included in the loading / unloading weight data. Arrange the vehicle entry data and loading / unloading weight data in ascending order according to the entry time node and the weighing time node to generate a trajectory state chain including the arrangement order. Step 2: Send a communication probe data packet to the weighing measurement terminal, monitor the response signal returned by the weighing measurement terminal based on the communication probe data packet, and if no response signal is received within a preset time period, obtain the current system time identifier and generate a communication interruption lock command based on the current system time identifier; Step 3: Receive the trajectory status chain and communication interruption lock command, identify the abnormal record features in the trajectory status chain that do not include loading and unloading weight data, trigger the call to communication interruption lock command based on the abnormal record features, extract fixed values ​​from the preset blocking value library, generate communication interruption blocking weight based on the fixed values, and output the verification interception index including the communication interruption blocking weight. Step 4: Receive the verification and interception indicators, extract the value of the communication interruption blocking weight included in the verification and interception indicators, and when the value of the communication interruption blocking weight is greater than the preset security threshold, generate a forced interception command and send the forced interception command to the exit interception terminal. Use the forced interception command to drive the exit interception terminal to lock the vehicle leaving the path.

[0016] Beneficial effects of this invention: This invention continuously monitors the communication response signal of the weighing and measuring terminal through a status detection module. In the event of a network outage, it can quickly acquire a time stamp and generate a communication interruption lockout command. Combined with the trajectory status chain generated in ascending order by the data acquisition module, the verification and analysis module can accurately identify abnormal records with missing loading and unloading weight data. This invention quantifies the communication interruption status by extracting fixed values ​​to generate a communication interruption blocking weight, thereby directly transforming network communication monitoring blind spots into business-level control indicators. When the communication interruption blocking weight value exceeds a preset safety threshold, the over-limit control module automatically issues a forced interception command, driving the exit interception terminal to perform a locking action, completely blocking the vehicle's departure path.

[0017] This invention effectively fills the monitoring blind spots in the communication status of equipment, repairs the vulnerability of broken system verification links, and solves the technical problem of vehicles that violate regulations by not being weighed and taking the opportunity to evade supervision from the root of the mechanism, thus realizing closed-loop management of the entire solid waste disposal process. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0019] Figure 1 This is a flowchart illustrating the closed-loop management method for the entire solid waste disposal process of the present invention. Detailed Implementation

[0020] To make the technical solution of the present invention clearer, the present invention will be clearly and completely described below with reference to specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. To better understand the purpose of the present invention, the present invention will be described in further detail below.

[0021] In a first aspect, the solid waste disposal closed-loop management and control system provided by the present invention includes terminal equipment and a control device that establishes a communication connection with the terminal equipment. The terminal equipment includes an entry verification terminal, a weighing and measuring terminal, and an exit interception terminal. The entry verification terminal is set up at the entrance of the factory area to collect vehicle entry data, the weighing and measuring terminal is set up in the weighing area inside the factory area to obtain loading and unloading weight data, and the exit interception terminal is set up at the exit of the factory area to perform interception actions to block vehicles from leaving the factory. The control device is used to control the terminal equipment, and the control device includes: The data acquisition module is used to acquire vehicle entry data sent by the factory entry verification terminal and loading and unloading weight data sent by the weighing measurement terminal, extract the entry time node included in the vehicle entry data and the weighing time node included in the loading and unloading weight data, and generate a trajectory state chain including the arrangement order by arranging the vehicle entry data and loading and unloading weight data in ascending order according to the entry time node and the weighing time node. The status detection module is used to send communication detection data packets to the weighing measurement terminal, monitor the response signal returned by the weighing measurement terminal based on the communication detection data packets, and if no response signal is received within a preset time period, obtain the current system time identifier and generate a communication interruption lock command based on the current system time identifier. The verification and analysis module is used to receive the trajectory status chain and communication interruption lock command, identify abnormal record features in the trajectory status chain that do not include loading and unloading weight data, trigger the call to the communication interruption lock command based on the abnormal record features, extract fixed values ​​from the preset blocking value library, generate communication interruption blocking weight based on the fixed values, and output verification and interception indicators including communication interruption blocking weight. The over-limit control module is used to receive verification and interception indicators, extract the value of communication interruption blocking weight included in the verification and interception indicators, generate a forced interception command when the value of the communication interruption blocking weight is greater than the preset safety threshold, send the forced interception command to the exit interception terminal, and use the forced interception command to drive the exit interception terminal to lock the vehicle leaving the path.

[0022] The solid waste disposal closed-loop management system includes terminal equipment and control devices that establish communication connections with the terminal equipment. The terminal equipment is deployed at the field business nodes of thermal power plants, and the control devices are industrial application servers deployed inside the central computer room.

[0023] The terminal equipment integrates an entry verification terminal, a weighing and measurement terminal, and an exit interception terminal. The entry verification terminal is located at the factory entrance to collect vehicle entry data. It uses a high-definition license plate capture camera with integrated optical character recognition algorithms, displaying the acquired vehicle entry data as license plate number text characters. The weighing and measurement terminal is located inside the factory's weighing area to acquire loading and unloading weight data. It uses an electronic weighbridge with resistance strain gauge load cells installed at the bottom to convert the loading and unloading weight data into digital weight in tons. The exit interception terminal is located at the factory exit to intercept vehicles and prevent them from leaving the factory. It functions as an integrated electric barrier gate with anti-collision capabilities.

[0024] The control device controls the terminal equipment and includes a data acquisition module, a status detection module, a verification and analysis module, and a limit-crossing control module. The data acquisition module receives vehicle entry data from the factory entry verification terminal and loading / unloading weight data from the weighing terminal. It extracts the entry time node from the vehicle entry data and the weighing time node from the loading / unloading weight data, both using absolute timestamp format. Subsequently, the data acquisition module arranges the vehicle entry data and loading / unloading weight data in ascending order of time nodes, generating a trajectory state chain including the arrangement order. This represents a structured, serial data sequence that objectively reflects the sequential flow logic of a single transport vehicle from factory entry to weighing.

[0025] The status detection module sends communication probe data packets to the weighing terminal and monitors the response signal returned by the weighing terminal based on the probe data packets. If no response signal is received within a preset time period set to a specified millisecond parameter, the status detection module obtains the current system time identifier and then generates a communication interruption lockout command based on the current system time identifier. The command includes a network disconnection time record accurate to milliseconds, indicating that the network connection between the weighing terminal and the control device has been interrupted.

[0026] Upon receiving the trajectory status chain and communication interruption lockout command, the verification and analysis module identifies abnormal record features in the trajectory status chain that do not include loading and unloading weight data, indicating that the vehicle has been registered for entry but the system records are completely missing weight data. Based on the abnormal record features, the verification and analysis module triggers the retrieval of the communication interruption lockout command to confirm the network disconnection event. Then, it extracts fixed values ​​from a preset blocking value library, generates a communication interruption blocking weight based on the fixed values, and finally outputs a verification interception index including the communication interruption blocking weight.

[0027] The over-limit control module receives and verifies the interception indicators, extracting the values ​​of communication interruption blocking weights. When the value of the communication interruption blocking weight exceeds a preset safety threshold, the over-limit control module generates a forced interception command and sends it to the exit interception terminal. The forced interception command drives the exit interception terminal to lock the vehicle's departure path, preventing vehicles that have not completed weighing operations from leaving the factory area during network outages.

[0028] Radio frequency (RF) sensing base stations deployed within the factory roads serve as auxiliary sensing nodes for terminal equipment. They employ ultra-high frequency (UHF) RF identification antenna arrays and establish a wired network communication connection with the control device. The status detection module acquires vehicle movement measurement data transmitted by the RF sensing base stations, including the sensing time of the vehicle passing the base station and the specific coordinates of the base station. This movement measurement data is converted into a spatial displacement change value representing the instantaneous speed of the vehicle moving towards the weighing area. The status detection module compares the spatial displacement change value with a preset frequency switching threshold. When the spatial displacement change value exceeds the preset frequency switching threshold, the risk of damaging the communication cable is considered increased. The transmission frequency of the communication detection data packets is then switched from a first preset frequency to a second preset frequency, and the communication detection data packets are transmitted to the weighing terminal at a high frequency according to the second preset frequency, thereby improving the sensitivity to signal fluctuations.

[0029] The communication probe data packets are encapsulated using the Ethernet test message protocol with a Response Checksum, specifically manifested as an Internet Control Message Protocol echo request message with a Cyclic Redundancy Check (CRC) to prevent data tampering or corruption during transmission. The status detection module counts the number of response signals returned by the weighing terminal within a preset time period, calculates the ratio of the number of response signals to the total number of communication probe data packets sent, and designates this ratio as the network link activity index. Next, the network link activity index is compared with a preset disconnection threshold. If the network link activity index is less than the preset disconnection threshold, it is determined that the packet loss rate is too high and the network channel is substantially blocked, confirming that no response signal has been received. Finally, the status detection module extracts the current system time stamp and writes it into the communication interruption lockout command.

[0030] Below the material unloading area, a storage level measurement terminal is installed, using radar level gauges or ultrasonic level sensors to measure the real-time material level inside the storage silo. The data acquisition module acquires the gate opening level signal sent by the incoming verification terminal and sets it as the first business event trigger signal. Simultaneously, it acquires the weight change variable indicating a significant drop in material level sent by the storage level measurement terminal and sets it as the second business event trigger signal. Additionally, it acquires the weight zeroing command output by the weighing measurement terminal, represented by an instrument reset electrical signal, and sets it as the third business event trigger signal. The data acquisition module assigns a standardized business timestamp to each of the first, second, and third business event trigger signals using the system network time protocol clock.

[0031] After completing the timestamp allocation operation, the data acquisition module retrieves the first, second, and third business event trigger signals, each with its assigned business timestamp, and sorts them in ascending order according to their timestamp values. The sorted trigger signals are then sequentially written into a block hash linked list structure for encrypted storage. Because the block hash linked list structure is constructed using a secure hash algorithm, each block generated by a business event includes the encrypted parameter verification value of the preceding business event block. Unauthorized data tampering will cause a break in the verification of the entire block hash linked list structure. The data acquisition module ultimately designates the block hash linked list structure as an immutable trajectory state chain and outputs it to the verification and analysis module.

[0032] After extracting the current system time stamp from the communication interruption lockout command, the verification and analysis module sets the system time stamp as the interruption time node and extracts the business timestamp corresponding to the second business event trigger signal as the unloading completion time node. The verification and analysis module calculates the time difference between the interruption time node and the unloading completion time node, converting the time difference into a temporal correlation degree reflecting the time span between unloading and network disconnection, and outputs it. Subsequently, the verification and analysis module compares the temporal correlation degree with a preset difference range, defined as the theoretical time range required for a transport vehicle to travel from the material unloading area to the weighing area at a constant speed according to the speed limit standard. When the temporal correlation degree is within the preset difference range, it indicates that the communication interruption event occurred within the relevant time period after the vehicle completed unloading and was ready to be weighed, conforming to the objective physical law of avoiding weighing. The verification and analysis module sets the communication interruption blocking weight to a preset maximum value, combines the abnormal record characteristics with the communication interruption blocking weight to generate a verification interception indicator, and sends the verification interception indicator to the over-limit control module.

[0033] The control unit constituting the exit interception terminal includes a servo motor, a mechanical transmission assembly connected to the servo motor shaft, and an interception crossbar connected to the mechanical transmission assembly. The servo motor is an AC permanent magnet synchronous servo motor with precise positioning capabilities, paired with a mechanical transmission assembly including a self-locking worm gear reducer and a four-bar linkage, which together control the interception crossbar made of high-strength aluminum alloy. The over-limit control module compares the communication interruption blocking weight with a preset safety threshold; when the communication interruption blocking weight exceeds the preset safety threshold, an over-limit trigger command is generated.

[0034] When the over-limit control module generates an over-limit trigger command, it outputs a continuous high-level pulse signal, manifested as a DC control level, to the control motherboard of the exit interception terminal as a forced interception command. The continuous high-level pulse signal drives the servo motor to operate and drives the mechanical transmission components, causing the servo motor to enter the power-on torque-holding mode. Combined with the mechanical reverse self-locking structure of the worm gear reducer, the interception bar is kept in a horizontal blocking state to block the vehicle's departure path, achieving a structured and thorough blocking control of unauthorized transport vehicles leaving the factory area.

[0035] The state detection module calculates the spatial displacement change value based on the formula for calculating the spatial displacement change value. The formula for calculating the spatial displacement change value is as follows: In the formula, Represents the numerical value of spatial displacement change. The specific coordinates of the radio frequency sensing base station corresponding to the time point when the vehicle is first sensed. The specific coordinates of the radio frequency sensing base station corresponding to the last sensing time of the vehicle. This represents the time point of the first sensing. This represents the time point of the last sensing. The state detection module will substitute the specific coordinates into... and Substitute the sensing time into and The calculated spatial displacement change, representing the instantaneous movement speed, is 25. The state detection module compares the spatial displacement change value of 25 with the preset frequency switching threshold of 20, and concludes that the spatial displacement change value is greater than the preset frequency switching threshold. The state detection module then switches the transmission frequency of the communication probe data packet from the first preset frequency to the second preset frequency.

[0036] The status detection module calculates the link activity status using the network link activity index calculation formula. The network link activity index calculation formula is as follows: In the formula, This represents a network link activity index. This represents the number of response signals returned by the weighing and measuring terminal within a preset time period. This represents the total number of communication probe data packets sent within a preset time period. The status detection module substitutes the number of response signals counted within the preset time period (40) into this value. Substitute the total number of communication probe data packets sent within the preset time period, 100, into the input. The calculated network link activity index is 0.4. The status detection module compares the network link activity index of 0.4 with the preset disconnection threshold of 0.5, and determines that the network link activity index is less than the preset disconnection threshold. The status detection module determines that no response signal has been received, extracts the current system time stamp, and writes it into the communication interruption lockout command.

[0037] The verification and analysis module evaluates the network outage time logic based on the time-series correlation calculation formula, which is as follows: In the formula, Represents temporal correlation. This represents the current system time identifier included in the communication interrupt lock command and the set interrupt time node. This represents the extracted service timestamp corresponding to the second service event trigger signal and the set handover / unloading completion time node. The verification and analysis module substitutes the interruption time node in absolute timestamp format. Substitute the unloading completion time node in absolute timestamp format into The calculated temporal correlation, reflected in the time difference, is 5 minutes. The verification and analysis module compares the 5-minute temporal correlation with a preset difference range of 3 to 8 minutes, determining that the temporal correlation falls within the preset difference range. The verification and analysis module sets the communication interruption blocking weight to a preset maximum value and combines the abnormal record features with the communication interruption blocking weight to generate verification and interception indicators.

[0038] Secondly, the solid waste disposal closed-loop management method provided by the present invention is applied to the solid waste disposal closed-loop management system as described above, including: Step 1: Obtain vehicle entry data sent by the factory entry verification terminal and loading / unloading weight data sent by the weighing measurement terminal. Extract the entry time node included in the vehicle entry data and the weighing time node included in the loading / unloading weight data. Arrange the vehicle entry data and loading / unloading weight data in ascending order according to the entry time node and the weighing time node to generate a trajectory state chain including the arrangement order. Step 2: Send a communication probe data packet to the weighing measurement terminal, monitor the response signal returned by the weighing measurement terminal based on the communication probe data packet, and if no response signal is received within a preset time period, obtain the current system time identifier and generate a communication interruption lock command based on the current system time identifier; Step 3: Receive the trajectory status chain and communication interruption lock command, identify the abnormal record features in the trajectory status chain that do not include loading and unloading weight data, trigger the call to communication interruption lock command based on the abnormal record features, extract fixed values ​​from the preset blocking value library, generate communication interruption blocking weight based on the fixed values, and output the verification interception index including the communication interruption blocking weight. Step 4: Receive the verification and interception indicators, extract the value of the communication interruption blocking weight included in the verification and interception indicators, and when the value of the communication interruption blocking weight is greater than the preset security threshold, generate a forced interception command and send the forced interception command to the exit interception terminal. Use the forced interception command to drive the exit interception terminal to lock the vehicle leaving the path.

[0039] In this embodiment of the invention, in the application scenario of transporting fly ash from a thermal power plant, the transport vehicle completes license plate recognition and registration through the plant entry verification terminal, and then enters the material unloading area to complete the ash unloading operation. When the transport vehicle finishes unloading and drives towards the weighing area, the road radio frequency induction base station detects that the vehicle's instantaneous speed reaches 25 kilometers per hour, exceeding the preset frequency switching threshold of 20 kilometers per hour. The status detection module then switches the transmission frequency of the communication detection data packet to 10 times per second, and continuously sends messages to the weighing measurement terminal according to the set high-frequency mode.

[0040] Faced with the abnormal situation of deliberately disconnecting the network communication cable of the weighing measurement terminal to circumvent the supervision of empty vehicle tare weighing, the status detection module fails to receive a response signal within a preset time period of 3000 milliseconds. Based on the system control mechanism, the status detection module generates a communication interruption lock command according to the current system time stamp, completing the parameterized recording of the network disconnection status.

[0041] The verification and analysis module synchronously retrieves the trajectory status chain and performs data comparison to identify abnormal records that only include entry and unloading events but not loading and unloading weight data. The module calculates the time difference between the network disconnection time and the unloading completion time, obtaining a 5-minute difference parameter. If this 5-minute difference parameter falls within the preset time interval of 3 to 8 minutes corresponding to the normal travel of the transport vehicle to the weighing area, the module determines that the network disconnection behavior conforms to the logic of avoiding weighing. It then extracts the value 999 from the preset blocking value library to generate a communication interruption blocking weight, and finally outputs a verification interception index including the communication interruption blocking weight.

[0042] The terminal exit control process relies on the over-limit control module to receive and verify interception indicators to trigger subsequent interception actions. The over-limit control module determines that the communication interruption blocking weight value of 999 is greater than the preset safety threshold of 60, generates a mandatory interception command in 24V DC control level format, and sends the command to the exit interception terminal. The exit interception terminal control motherboard receives the mandatory interception command in continuous high-level pulse signal format, and uses the continuous high-level pulse signal to drive the AC permanent magnet synchronous servo motor into a power-on torque-holding working mode. Combined with the worm gear reverse self-locking characteristic of the mechanical transmission components, the control unit maintains the interception bar in an absolutely horizontal blocking state, completing the structural interception of unweighed vehicles at the factory gate.

Claims

1. A closed-loop management and control system for the entire solid waste disposal process, characterized in that: This includes terminal equipment and control devices that establish communication connections with the terminal equipment; Terminal equipment includes inbound verification terminals, weighing and measuring terminals, and outbound interception terminals; The control device is used to control the terminal equipment, and the control device includes: The data acquisition module is used to acquire vehicle entry data sent by the factory entry verification terminal and loading and unloading weight data sent by the weighing measurement terminal, extract the entry time node included in the vehicle entry data and the weighing time node included in the loading and unloading weight data, and generate a trajectory state chain including the arrangement order by arranging the vehicle entry data and loading and unloading weight data in ascending order according to the entry time node and the weighing time node. The status detection module is used to send communication detection data packets to the weighing measurement terminal, monitor the response signal returned by the weighing measurement terminal based on the communication detection data packets, and if no response signal is received within a preset time period, obtain the current system time identifier and generate a communication interruption lock command based on the current system time identifier. The verification and analysis module is used to receive the trajectory status chain and communication interruption lock command, identify abnormal record features in the trajectory status chain that do not include loading and unloading weight data, trigger the call to the communication interruption lock command based on the abnormal record features, extract fixed values ​​from the preset blocking value library, generate communication interruption blocking weight based on the fixed values, and output verification and interception indicators including communication interruption blocking weight. The over-limit control module is used to receive verification and interception indicators, extract the value of communication interruption blocking weight included in the verification and interception indicators, generate a forced interception command when the value of the communication interruption blocking weight is greater than the preset safety threshold, send the forced interception command to the exit interception terminal, and use the forced interception command to drive the exit interception terminal to lock the vehicle leaving the path.

2. The closed-loop management and control system for the entire solid waste disposal process according to claim 1, characterized in that, The terminal equipment also includes radio frequency sensing base stations deployed on roads within the factory area, which establish communication connections with the control device; The status detection module is also used to acquire vehicle movement measurement data sent by the radio frequency sensing base station, convert the vehicle movement measurement data into a spatial displacement change value of the vehicle moving towards the weighing area, compare the spatial displacement change value with a preset frequency switching threshold, and when the spatial displacement change value is greater than the preset frequency switching threshold, switch the transmission frequency of the communication detection data packet from the first preset frequency to the second preset frequency, and send the communication detection data packet to the weighing measurement terminal at the second preset frequency.

3. The closed-loop management and control system for the entire solid waste disposal process according to claim 2, characterized in that, The communication probe data packets are encapsulated using the Ethernet test message protocol with a response check code; The status detection module is also used to count the number of response signals returned by the weighing and measuring terminal within a preset time period, calculate the ratio of the number of response signals to the total number of communication probe data packets sent, designate the ratio as the network link activity index, compare the network link activity index with the preset disconnection threshold, determine that no response signal has been received when the network link activity index is less than the preset disconnection threshold, and extract the current system time identifier and write it into the communication interruption lockout instruction.

4. The closed-loop management and control system for the entire solid waste disposal process according to claim 3, characterized in that, Terminal equipment also includes storage level measurement terminals located below the material unloading area inside the plant. The data acquisition module is also used to acquire the gate opening level signal sent by the factory entry verification terminal and set it as the first business event trigger signal, acquire the weight change variable sent by the storage material level measurement terminal and set it as the second business event trigger signal, acquire the weight zeroing instruction output by the weighing measurement terminal and set it as the third business event trigger signal, and assign business timestamps to the first business event trigger signal, the second business event trigger signal and the third business event trigger signal respectively through the system clock.

5. The closed-loop management and control system for the entire solid waste disposal process according to claim 4, characterized in that, The data acquisition module is also used to retrieve the first business event trigger signal, the second business event trigger signal, and the third business event trigger signal, which are assigned business timestamps. The signals are sorted in ascending order according to the value of the business timestamps. The first, second, and third business event trigger signals in ascending order are written into the block hash linked list structure for storage. The block hash linked list structure is designated as the trajectory status chain and output to the verification and analysis module.

6. The closed-loop management and control system for the entire solid waste disposal process according to claim 4, characterized in that, The verification and analysis module is also used to extract the current system time stamp included in the communication interruption lock command and set it as the interruption time node, extract the service timestamp corresponding to the second service event trigger signal and set it as the handover completion time node, calculate the time difference between the interruption time node and the handover completion time node, and set the time difference as the timing correlation degree output.

7. The closed-loop management and control system for the entire solid waste disposal process according to claim 6, characterized in that, The verification and analysis module is also used to compare the temporal correlation degree with the preset difference range. When the temporal correlation degree is within the preset difference range, the value of the communication interruption blocking weight is set to the preset maximum value. The abnormal record features and the communication interruption blocking weight are combined to generate verification and interception indicators, which are then sent to the over-limit control module.

8. The closed-loop management and control system for the entire solid waste disposal process according to claim 7, characterized in that, The exit interception terminal consists of a servo motor, a mechanical transmission assembly connected to the shaft of the servo motor, and an interception crossbar connected to the mechanical transmission assembly. The over-limit control module is also used to compare the value of the communication interruption blocking weight with the preset security threshold, and generate an over-limit trigger command when the value of the communication interruption blocking weight is greater than the preset security threshold.

9. The closed-loop management and control system for the entire solid waste disposal process according to claim 8, characterized in that, The forced interception command is a continuous high-level pulse signal; The over-limit control module is also used to output a continuous high-level pulse signal to the exit interception terminal as a forced interception command when an over-limit trigger command is generated. The continuous high-level pulse signal drives the servo motor to run and drives the mechanical transmission components to keep the interception bar in a horizontal blocking state to lock the vehicle from leaving the path.

10. A closed-loop management method for the entire solid waste disposal process, applied to the closed-loop management system for the entire solid waste disposal process as described in any one of claims 1 to 9, characterized in that, include: Step 1: Obtain vehicle entry data sent by the factory entry verification terminal and loading / unloading weight data sent by the weighing measurement terminal. Extract the entry time node included in the vehicle entry data and the weighing time node included in the loading / unloading weight data. Arrange the vehicle entry data and loading / unloading weight data in ascending order according to the entry time node and the weighing time node to generate a trajectory state chain including the arrangement order. Step 2: Send a communication probe data packet to the weighing measurement terminal, monitor the response signal returned by the weighing measurement terminal based on the communication probe data packet, and if no response signal is received within a preset time period, obtain the current system time identifier and generate a communication interruption lock command based on the current system time identifier; Step 3: Receive the trajectory status chain and communication interruption lock command, identify the abnormal record features in the trajectory status chain that do not include loading and unloading weight data, trigger the call to communication interruption lock command based on the abnormal record features, extract fixed values ​​from the preset blocking value library, generate communication interruption blocking weight based on the fixed values, and output the verification interception index including the communication interruption blocking weight. Step 4: Receive the verification and interception indicators, extract the value of the communication interruption blocking weight included in the verification and interception indicators, and when the value of the communication interruption blocking weight is greater than the preset security threshold, generate a forced interception command and send the forced interception command to the exit interception terminal. Use the forced interception command to drive the exit interception terminal to lock the vehicle leaving the path.

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