Multi-level ship lock remote regulation and control system

Abstract

The embodiment of the invention discloses a multi-level ship lock remote regulation and control system, belongs to the technical field of ship lock remote centralized control, and solves the problems that a traditional ship lock management system is low in management efficiency, and a ship lock is difficult to operate safely and efficiently. The system is a three-level control system composed of a remote centralized control center, a management branch center and an in-situ station. The remote centralized control center is connected with the management branch center and / or the in-situ station, and the remote centralized control center is used for carrying out ship lock data acquisition and ship lock control instruction issuing on the connected management branch center and / or the in-situ station; and the management branch centers are connected with the in-situ stations, and are used for carrying out ship lock data acquisition and ship lock control instruction issuing on the connected in-situ stations.

Description

Technical Field

[0001] The present application relates to the technical field of remote centralized control of ship locks, and in particular to a multi-level remote control system for ship locks. Background Art

[0002] In the shipping field, ship locks, as key water transport infrastructure, are of great significance for ensuring smooth waterways and promoting regional economic development. However, with the rapid development of the shipping industry and the continuous advancement of technology, traditional ship lock management systems have gradually exposed many limitations, especially in terms of system integration, information sharing and service scalability.

[0003] Due to the long construction time span and diverse funding sources of different locks, the management systems of each lock often adopt different technical architectures and software and hardware platforms. This heterogeneity not only increases the complexity and cost of system maintenance, but also greatly limits the ability to share information between systems. Traditional lock management systems can often only operate in an "island-like" manner, making it difficult to effectively connect with other locks or broader shipping management systems. In the traditional lock management model, scheduling information and PLC (programmable logic controller) configuration screens are usually displayed and managed on different host computers. This not only reduces management efficiency, but is also not conducive to the safe and efficient operation of locks. Summary of the invention

[0004] The embodiment of the present application provides a multi-level ship lock remote control system for solving the following technical problems: Traditional ship lock management systems can often only operate independently, which not only reduces management efficiency but also is not conducive to the safe and efficient operation of the lock.

[0005] The present application embodiment adopts the following technical solutions:

[0006] The embodiment of the present application provides a multi-level ship lock remote control system. The system is a three-level control system consisting of a remote centralized control center, a management sub-center, and a local station; the remote centralized control center is connected to the management sub-center and / or the local station, and the remote centralized control center is used to collect ship lock data and issue ship lock control instructions to the connected management sub-center and / or the local station; the management sub-center is connected to the local station, and the management sub-center is used to collect ship lock data and issue ship lock control instructions to the connected local station.

[0007] The embodiment of the present application realizes remote centralized control by setting up a three-level control system, solves the problems of aging of hardware and software and system incoordination of the electromechanical control system of the ship lock, improves the degree of intelligence and automation, and meets the growing business needs while reducing labor costs. Through the remote centralized control center, unified management and scheduling of multiple management sub-centers and local stations are realized. This centralized management method can speed up the speed of information transmission, thereby improving overall operational efficiency. The system can collect the operating data of each ship lock in real time, and centrally process and analyze it through the remote centralized control center, so as to promptly discover potential problems, optimize scheduling strategies, and ensure the safe and efficient operation of the ship lock system.

[0008] In one implementation of the present application, a communication server is provided in the remote centralized control center; the communication server is connected to the management sub-center and the local station equipment through the network, and monitors and controls the data through the interface between the systems.

[0009] The embodiment of the present application can provide interfaces and services to the outside world. The system can set up an external application port function, has strong scalability, and can smoothly and conveniently directly access the application data of external existing or subsequent information technology upgrade and transformation projects, or output related operation data.

[0010] In one implementation of the present application, the on-site station includes multiple locks, and the multiple locks are respectively provided with a field server and multiple PLC host computers; the multiple PLC host computers are respectively connected to the field servers; the multiple PLC host computers are used to upload the collected lock operation data to the field server; the field server includes PLC data filtering and Mysql database; PLC data filtering is used to provide a data transmission interface for multiple PLC host computers, and to filter the received lock operation data, and at the same time transmit the lock operation data to the Mysql database; the Mysql database is used to save the received lock operation data to the lock intranet.

[0011] In one implementation of the present application, the system also includes a business analysis server and a business system database; the business analysis server includes Redis and a PLC screening service; the business analysis server is arranged on an external network, and is used to receive lock operation data respectively sent by multiple field servers; Redis is used to save the received lock operation data; the PLC data screening service is used to perform thinning and threshold judgment on the received lock operation data, and upload the lock data after thinning and threshold judgment to the business system database, so that the remote centralized control center can analyze and process the data in the business system database.

[0012] In one implementation of the present application, the management sub-center is provided with a data server, multiple monitoring hosts, a printer, a first industrial switch and a second industrial switch; the first industrial switch is used for data transmission with the data server and the printer; the second industrial switch is used for data transmission with the first industrial switch and multiple monitoring hosts, and the second industrial switch is also used for data transmission with the local station control system.

[0013] In one implementation of the present application, the on-site station transmits various electrical signals through cables; the on-site station is provided with a fiber optic ring network; the fiber optic ring network is composed of an upstream operation room industrial switch, a downstream operation room industrial switch and a management sub-center industrial switch; the on-site station is provided with a PLC master station and multiple PLC slave stations; the PLC master station and multiple PLC slave stations are located in each computer room of the on-site station and form a ring network.

[0014] In one implementation of the present application, the upstream operation room industrial switch and the downstream operation room industrial switch are used to send the command information sent by the management center industrial switch to the corresponding PLC master station or PLC slave station; the PLC master station is used to send the received command information to the corresponding operation room industrial switch, and send the command information to the corresponding PLC slave station through the operation room industrial switch.

[0015] In one implementation of the present application, the PLC master station is a dual-machine hot standby system.

[0016] The embodiment of the present application adopts a dual-machine hot standby system, so that the performance of the entire system is improved, and the system is also effectively guaranteed in terms of operational stability, safety and reliability. It solves the problem in the prior art that if a module in the PLC host rack fails, the entire control system will fail, and the automatic control operation of the ship lock cannot be implemented, especially when the ship lock gate is opened and closed, which will cause serious consequences.

[0017] In one implementation of the present application, the system also includes a PLC control system network; the PLC control system network includes three protection areas: an on-site industrial control network for the lock, an industrial control network for a remote centralized control center, and a company business network; the three protection areas are each provided with boundary protection.

[0018] In one implementation of the present application, the field station uses an Ethernet control network.

[0019] The on-site station of the embodiment of the present application adopts an Ethernet control network, which improves the shortcomings of the field bus control system in the prior art, optimizes the problem of limited openness of the field bus control system, and also adds various advantages of low consumption, fast transmission and convenience.

[0020] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects: The embodiments of the present application realize remote centralized control by setting up a three-level control system, solve the problems of aging of hardware and software and system incoordination of the electromechanical control system of the ship lock, improve the degree of intelligence and automation, and meet the growing business needs while reducing labor costs. Through the remote centralized control center, unified management and scheduling of multiple management sub-centers and local stations can be achieved. This centralized management method can speed up the speed of information transmission, thereby improving overall operational efficiency. The system can collect the operating data of each ship lock in real time, and centrally process and analyze it through the remote centralized control center, so as to timely discover potential problems, optimize scheduling strategies, and ensure the safe and efficient operation of the ship lock system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. In the drawings:

[0022] Figure 1 A schematic diagram of a multi-level ship lock remote control system provided in an embodiment of the present application;

[0023] Figure 2 A core flow diagram of a ship lock remote centralized control management system provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of a management sub-center and a local station architecture design provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of a network architecture provided for an embodiment of the present application. DETAILED DESCRIPTION

[0026] An embodiment of the present application provides a multi-level ship lock remote control system.

[0027] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments of this specification, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0028] The technical solution proposed in the embodiment of the present invention is described in detail below with reference to the accompanying drawings.

[0029] Figure 1 A schematic diagram of a multi-level ship lock remote control system provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the multi-level ship lock remote control system is a three-level control system consisting of a remote centralized control center, a management sub-center, and a local station. The remote centralized control center is connected to the management sub-center and / or the local station, and the remote centralized control center is used to collect ship lock data and issue ship lock control instructions to the connected management sub-center and / or the local station. The management sub-center is connected to the local station, and the management sub-center is used to collect ship lock data and issue ship lock control instructions to the connected local station.

[0030] Specifically, Figure 1 As shown, the remote centralized control center in the embodiment of the present application, i.e., the remote centralized control center, is connected to a management sub-center or a certain lock of a local station. The management sub-center is connected to a certain double-track lock of a local station and / or a certain single-line lock of a local station. The remote centralized management center can issue a collection command to the connected management sub-center and / or a certain lock of a local station to obtain lock information, and analyze the acquired lock information to control the lock according to the analysis results, and send the control command to the connected management sub-center and / or a certain lock of a local station. Similarly, after receiving the command from the remote centralized control center, the management sub-center can issue a collection command to the connected double-track lock of a local station and / or a certain single-line lock of a local station to obtain lock information, and send the acquired lock information to the remote centralized control center.

[0031] The embodiment of the present application realizes remote centralized control by constructing a three-level control system consisting of a remote centralized control center, a management subcenter, and a local station. It solves the problems of aging software and hardware and system incoordination of the ship lock electromechanical control system, improves the degree of intelligence and automation, and meets the growing business needs while reducing labor costs.

[0032] In one embodiment of the present application, the remote centralized control center is provided with a communication server, which is connected to the management sub-center and the local station equipment through the network, and monitors and controls the data through the interface between the systems.

[0033] Specifically, the remote centralized control center, the management sub-center and the local station realize data collection and control command issuance through the control dedicated network. The remote centralized control center communication server is connected to the management sub-center and the local station equipment through the network, and realizes data monitoring and control through the interface between the systems.

[0034] In one embodiment of the present application, the on-site station includes multiple ship locks, and the multiple ship locks are respectively provided with a field server and multiple PLC host computers. The multiple PLC host computers are respectively connected to the field servers; the multiple PLC host computers are used to upload the collected ship lock operation data to the field server. The field server includes a PLC data filter and a Mysql database. The PLC data filter is used to provide a data transmission interface for the multiple PLC host computers, and to filter the received ship lock operation data, and at the same time transmit the ship lock operation data to the Mysql database. The Mysql database is used to save the received ship lock operation data to the ship lock intranet.

[0035] Specifically, Figure 2 A core flow diagram of a ship lock remote centralized control management system provided in an embodiment of the present application is shown in FIG. Figure 2 As shown, in the lock intranet of the embodiment of the present application, each lock is provided with a field server A, a PLC data filter B, a Mysql database C, and multiple PLC host computers.

[0036] Specifically, Figure 2 As shown, the field server A includes a PLC data screening service (field server) and a Mysql database. The function of the PLC data screening service B is mainly to provide an interface for the PLC host computer. The host computer transmits the PLC operation data to the PLC data screening service module in real time through the provided interface. After receiving the data, the data is stored in the Mysql data and transmitted to the PLC screening service (business server) at the business end. The Mysql database C saves the running PLC data to prevent data loss caused by problems in the external network.

[0037] The data received by the on-site server is transmitted to the business resolution server D on the external network after passing through the network gate. The data received by the business resolution server is PLC encrypted data. By encrypting the data, the security of the data transmission process can be ensured.

[0038] In one embodiment of the present application, the system also includes a business parsing server and a business system database. The business parser server includes Redis and a PLC screening service; the business parser is set in the external network and is used to receive the lock operation data sent by multiple field servers respectively. Redis is used to save the received lock operation data. The PLC data screening service is used to perform rarefaction and threshold judgment on the received lock operation data, and upload the rarefaction and threshold judgment lock data to the business system database, so that the remote centralized control center can analyze and process the data in the business system database.

[0039] Specifically, Figure 2As shown, the embodiment of the present application is provided with an external network, one end of which is connected to multiple ship locks of the internal network. At the same time, the remote centralized control center is connected to the external network. The external network end includes a business analysis server D, Redis (E), a PLC data screening service F (business server), a business system database H (navigation system) and a PLC program I.

[0040] Furthermore, if Figure 2 As shown, the business analysis server D includes Redis (E) and PLC data screening service F (business server). Redis (E) is used to save the real-time operation data of PLC, and the data comes from the PLC data screening service (business server). The main function of PLC data screening service F (business server) is to provide an interface for PLC data screening service (field server) to use for transmitting PLC data. After receiving PLC data, the data is saved in Redis, and at the same time, data rarefaction and threshold judgment are performed before saving it in the database of the business system. The business system database G (navigation system) is the existing system database and the center of remote centralized control. The external application port function is set up with strong scalability, which can smoothly and conveniently directly access the application data of external existing or subsequent information upgrade and transformation projects, or output related operation data. PLC program, PLC module related functions.

[0041] Furthermore, the data thinning and threshold judgment in the embodiments of the present application refer to the real-time monitoring, aggregation, analysis and display of PLC operation data and operation and dispatching system data, which can intuitively monitor the operation status of the ship lock equipment and the ship lock dispatching situation in the sub-control center and the main center, and set thresholds for different types of data transmitted by sensors of different equipment, and automatically alarm when the threshold is exceeded. Thinning PLC data means downsampling the data during the data collection process to reduce the amount of data and retain key information.

[0042] In one embodiment of the present application, the management subcenter is provided with a data server, a plurality of monitoring hosts, a printer, a first industrial switch and a second industrial switch. The first industrial switch is used for data transmission with the data server and the printer. The second industrial switch is used for data transmission with the first industrial switch and the plurality of monitoring hosts, and the second industrial switch is also used for data transmission with the local station control system.

[0043] Specifically, Figure 3 A schematic diagram of a management sub-center and a local station architecture design provided in an embodiment of the present application is shown in FIG. Figure 3As shown in the figure, the local station control system includes 1 master station and 3 remote stations (RIO). Various electrical signals on site are transmitted to the local site via cables. The system contains 1 optical fiber ring network, which is composed of industrial switches in the upstream and downstream operation rooms and industrial switches in the ship lock monitoring and dispatching center. The signals from each machine room and the site are transmitted to the local site using cables. The upstream and downstream duty booths and the monitoring and dispatching center are each equipped with a managed switch to access the PLC data, and the managed switches form a ring network to achieve network redundancy.

[0044] Furthermore, the management sub-center is provided with a data server, multiple monitoring hosts, a printer, a first industrial switch and a second industrial switch. The first industrial switch is used to transmit data with the data server and the printer, and at the same time, the first industrial switch also interacts with the superior management department through the set router and firewall. The second industrial switch is used to transmit data with the first industrial switch, monitoring host 1 and monitoring host 2, and transmit the acquired data to the computer room.

[0045] In one embodiment of the present application, the field station transmits various electrical signals through cables. The field station is provided with an optical fiber ring network; the optical fiber ring network is composed of an upstream operation room industrial switch, a downstream operation room industrial switch, and a management sub-center industrial switch. The field station is provided with a PLC master station and multiple PLC slave stations; the PLC master station and multiple PLC slave stations are located in each machine room of the field station and form a ring network.

[0046] For example, Figure 3 As shown, the upper right gate room is equipped with a local monitoring master station, a PLC master station, an industrial switch, a network bridge, and an intelligent current protector. The upper left gate room includes a PLC slave station, a network bridge, and an intelligent current protector. The lower right gate room includes a local monitoring master station, an industrial switch, a PLC slave station, a network bridge, and an intelligent current protector. The lower left gate room includes a PLC slave station, a network bridge, and an intelligent current protector.

[0047] In one embodiment of the present application, the upstream operation room industrial switch and the downstream operation room industrial switch are used to send the command information sent by the management center industrial switch to the corresponding PLC master station or PLC slave station. The PLC master station is used to send the received command information to the corresponding operation room industrial switch, and send the command information to the corresponding PLC slave station through the operation room industrial switch.

[0048] Specifically, Figure 3 As shown in the figure, taking the preparation for closing the lower gate as an example, the different devices in each computer room and the data transmission mode between different computer rooms are as follows:

[0049] The management sub-center clicks on the system to close the gate, and the signal passes through the industrial switch of the management sub-center.

[0050] Process 1: The signal reaches the industrial switch in the computer room at the lower right gate, reaches the two PLC slave stations, and issues a gate closing command.

[0051] Process 2: The signal reaches the industrial switch in the upper right gate room at the same time, and reaches the PLC master station, ready to issue a gate closing command. If process 1 works, the PLC master station will issue a gate closing command again, reaching the industrial switch in the lower right gate room, and then to the PLC slave stations on the left and right sides.

[0052] After the left and right gates are closed, the signal fed back by the sensor returns to the management sub-center via the original route, and the system shows that the gate is closed.

[0053] In one embodiment of the present application, the PLC master station is a dual-machine hot standby system.

[0054] Specifically, in the PLC control system, the PLC master station adopts a dual-machine hot standby system. When one of the PLC master stations fails, the other one immediately takes over the work to ensure uninterrupted operation of the system, thereby improving the reliability of the entire system. The performance of the entire system has been improved, and the system has also been effectively guaranteed in terms of operational stability, safety and reliability.

[0055] In one embodiment of the present application, the field station uses an Ethernet control network.

[0056] Specifically, in the embodiment of the present application, the local station adopts an Ethernet control network, uses a ring network design, and provides network redundancy. Not only can the centralized control instructions be received by the local hardware cable, but also by Ethernet. The shortcomings of the fieldbus control system in the prior art are improved, the problem of limited openness of the fieldbus control system is optimized, and various advantages of low consumption, fast transmission, and convenience are also added.

[0057] In one embodiment of the present application, the system further includes a PLC control system network. The PLC control system network includes three protection areas: a ship lock on-site industrial control network, a remote centralized control center industrial control network, and a company business network. The three protection areas are respectively provided with boundary protection.

[0058] Specifically, Figure 4 A schematic diagram of a network architecture provided in an embodiment of the present application. Figure 4 As shown, in order to enhance the network security of the ship lock PLC control system, the embodiment of the present application divides the PLC control network into three protection areas: the ship lock on-site industrial control network, the remote centralized control center industrial control network, and the company business network.

[0059] Furthermore, if Figure 4As shown, the on-site industrial control network of the ship lock: the internal PLC control network area of ​​each ship lock (including PLC, host computer, application server, data server and external integrated systems linked with PLC such as video linkage, ship crossing alarm, etc.);

[0060] Industrial control network of remote centralized control center: PLC data aggregation application and storage area of ​​centralized control center (including servers of various business systems, network connection equipment, safety protection equipment, etc.);

[0061] The company's business network; the company's business system area (including central application servers, interface servers, file servers, middleware servers, database servers, as well as network connection equipment, security protection equipment and other business system deployment servers).

[0062] The internal protection of the PLC control network area is implemented as follows:

[0063] (1) Logical isolation between different PLC control systems within the double-track ship lock;

[0064] (2) The external integrated system of the single-line ship lock (such as video linkage) is logically isolated from the PLC control system to prevent it from directly exchanging data with the PLC control unit; boundary protection can effectively warn and block network attacks, abnormal control behaviors and illegal data packets, and monitor various security threats.

[0065] (3) Logical isolation between the locks;

[0066] (4) Each centralized control center is logically isolated.

[0067] Boundary protection can effectively warn and block network attacks, abnormal control behaviors and illegal data packets, and monitor various security threats.

[0068] The embodiment of the present application realizes remote centralized control management of ship locks through a multi-level ship lock remote control system, a management sub-center and a local station architecture design, provides system redundancy, a three-layer network architecture design, and boundary protection that can effectively warn and block network attacks, abnormal control behaviors and illegal data packets, and monitor various security threats.

[0069] Furthermore, the multi-level ship lock remote control system of the embodiment of the present application has the following advantages:

[0070] (1) It realizes remote centralized control, solves the problems of aging software and hardware and system incoordination of the ship lock electromechanical control system, and improves the degree of intelligence and automation;

[0071] (2) In the prior art, the PLC host does not use a hot standby system. Once a module in the PLC host rack fails, the entire control system will fail, and the ship lock cannot be automatically controlled, especially when the ship lock gate is opened and closed, which will cause serious consequences. In order to improve the stability of the entire ship lock control system, the embodiments of the present application all use a dual-machine hot standby system in the control system. The performance of the entire system is improved, and the system is also effectively guaranteed in terms of operational stability, safety and reliability.

[0072] (3) The local station adopts Ethernet control network, which improves the shortcomings of the field bus control system in the existing technology, optimizes the problem of limited openness of the field bus control system, and also adds various advantages such as low consumption, fast transmission and convenience.

[0073] (4) The system has good scalability. The ship lock management system can provide interfaces and services to the outside world. The system can set up external application port functions and has strong scalability. It can smoothly and conveniently directly access the application data of external existing or subsequent information upgrade and transformation projects, or output relevant operation data.

[0074] Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment, and non-volatile computer storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0075] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the embodiments of the present application may have various changes and variations. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A multi-level ship lock remote control system, characterized in that: The system is a three-level control system consisting of a remote centralized control center, a management sub-center and a local station; The remote centralized control center is connected to the management sub-center and / or the local station, and the remote centralized control center is used to collect ship lock data and issue ship lock control instructions to the connected management sub-center and / or the local station; The management sub-center is connected to the on-site station, and the management sub-center is used to collect ship lock data and issue ship lock control instructions to the connected on-site station.

2. A multi-level ship lock remote control system according to claim 1, characterized in that: The remote centralized control center is provided with a communication server; The communication server is connected to the management sub-center and the local station equipment through the network, and monitors and controls the data through the interface between the systems.

3. A multi-level ship lock remote control system according to claim 1, characterized in that: The on-site station includes a plurality of ship locks, each of which is provided with a field server and a plurality of PLC host computers; The plurality of PLC host computers are respectively connected to the on-site server; the plurality of PLC host computers are used to upload the collected ship lock operation data to the on-site server; The field server includes PLC data screening and Mysql database; The PLC data screening is used to provide a data transmission interface for the multiple PLC host computers, and to screen the received ship lock operation data, and at the same time transmit the ship lock operation data to the Mysql database; The Mysql database is used to save the received lock operation data to the lock intranet.

4. A multi-level ship lock remote control system according to claim 3, characterized in that: The system also includes a business analysis server and a business system database; The business parser server includes Redis and PLC screening services; the business parser is set in the external network and is used to receive the ship lock operation data sent by multiple field servers respectively; The Redis is used to save the received ship lock operation data; The PLC data screening service is used to perform thinning and threshold judgment on the received lock operation data, and upload the lock data after thinning and threshold judgment to the business system database, so that the remote centralized control center can analyze and process the data in the business system database.

5. A multi-level ship lock remote control system according to claim 1, characterized in that: The management sub-center is provided with a data server, a plurality of monitoring hosts, a printer, a first industrial switch and a second industrial switch; The first industrial switch is used for data transmission with the data server and the printer; The second industrial switch is used for data transmission with the first industrial switch and the plurality of monitoring hosts, and the second industrial switch is also used for data transmission with the field station control system.

6. A multi-level ship lock remote control system according to claim 1, characterized in that: The on-site station transmits various electrical signals via cables; The on-site station is provided with an optical fiber ring network; the optical fiber ring network is composed of an upstream operation room industrial switch, a downstream operation room industrial switch and a management sub-center industrial switch; The on-site station is provided with a PLC master station and a plurality of PLC slave stations; the PLC master station and the plurality of PLC slave stations are separately arranged in each machine room of the on-site station and form a ring network.

7. A multi-level ship lock remote control system according to claim 6, characterized in that: The upstream operation room industrial switch and the downstream operation room industrial switch are used to send the command information sent by the management center industrial switch to the corresponding PLC master station or PLC slave station; The PLC master station is used to send the received command information to the corresponding operation room industrial switch, and send the command information to the corresponding PLC slave station through the operation room industrial switch.

8. A multi-level ship lock remote control system according to claim 6, characterized in that: The PLC master station is a dual-machine hot standby system.

9. A multi-level ship lock remote control system according to claim 1, characterized in that: The system also includes a PLC control system network; The PLC control system network includes three protection areas: the on-site industrial control network of the ship lock, the industrial control network of the remote centralized control center, and the company's business network; The three protection areas are respectively provided with boundary protection.

10. A multi-level ship lock remote control system according to claim 1, characterized in that: The local station adopts an Ethernet control network.

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