System for realizing safe and reliable operation of ship lift

Abstract

The utility model provides a system for realizing safe and reliable operation of a ship lift, which comprises a main operator station, an auxiliary operator station, a main server, an auxiliary server, an optical fiber ring network and a plurality of programmable logic controllers, the main server is also connected with all the programmable logic controllers through the optical fiber ring network; the auxiliary server is respectively connected with the main operator station and the auxiliary operator station, and the auxiliary server is also connected with all the programmable logic controllers through the optical fiber ring network; wherein the main operator station and the auxiliary operator can be mutually switched, when the main operator station breaks down or is stopped, the auxiliary operator station is switched to the authority of the main operator station for control, the main server and the auxiliary server are in data synchronization, and when the main server breaks down or is stopped, the auxiliary server replaces the main server to work. And the fault-tolerant rate and the stability of system operation are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of ship lift system design, in particular to a system for realizing the safe and reliable operation of a ship lift. Background Technique

[0002] The ship lift belongs to large-scale equipment with complex process control. The mechanism actions are both independent and interrelated, and usually need to be designed and manufactured according to the characteristics of specific projects. In view of the characteristics of large water level changes between the upstream and downstream of the ship lift, complex mechanism actions, multi-point drive control, and scattered equipment, it is required that the data collected by the monitoring system has high real-time performance and reliability, and has fault tolerance ability, and the fault should be quickly restored within a very short time range.

[0003] In the traditional ship lift computer monitoring system, usually one host is used to issue system commands and monitor, and usually one server is also used for data caching and collection; in the above solution, when the host and / or the server fails or is out of service, the entire monitoring system will be unavailable, resulting in poor fault tolerance and recovery ability of the entire system. Content of the Utility Model

[0004] The utility model lies in how to improve the fault tolerance and recovery ability of the ship lift monitoring system during operation.

[0005] The utility model provides a system for realizing the safe and reliable operation of a ship lift, including: a main operator station 1, an auxiliary operator station 2, a main server 3, an auxiliary server 4, an optical fiber ring network 5, and a plurality of programmable logic controllers 7. The plurality of programmable logic controllers 7 are deployed at corresponding workstations of the ship lift, wherein:

[0006] The main server 3 is respectively connected to the main operator station 1 and the auxiliary operator station 2, and the main server 3 is also connected to all the programmable logic controllers 7 through the optical fiber ring network 5;

[0007] The auxiliary server 4 is respectively connected to the main operator station 1 and the auxiliary operator station 2, and the auxiliary server 4 is also connected to all the programmable logic controllers 7 through the optical fiber ring network 5;

[0008] One of the operator stations among the main operator station 1 and the auxiliary operator station 2 is used to issue commands; both the main server 3 and the auxiliary server 4 are used to receive the commands issued by the operation station and receive the data from each programmable logic controller 7 through the optical fiber ring network 5.

[0009] Preferably, each of the programmable logic controllers 7 includes a main PLC 71 and an auxiliary PLC 72, wherein:

[0010] Both the main PLC 71 and the auxiliary PLC 72 are connected to the main server 3 through the fiber optic ring network 5;

[0011] Both the main PLC 71 and the auxiliary PLC 72 are connected to the auxiliary server 4 through the fiber optic ring network 5.

[0012] Preferably, one or more input / output modules 6 are correspondingly connected to each programmable logic controller 7, and each input / output module 6 is simultaneously connected to the main PLC 71 and the auxiliary PLC 72 in the same programmable logic controller 7.

[0013] Preferably, the fiber optic ring network 5 includes a first ring network 51 and a second ring network 52, where:

[0014] All the main PLCs 71 in all the programmable logic controllers 7 are simultaneously connected to both the first ring network 51 and the second ring network 52, and all the auxiliary PLCs 72 in all the programmable logic controllers 7 are simultaneously connected to both the first ring network 51 and the second ring network 52;

[0015] The main server 3 is respectively connected to the first ring network 51 and the second ring network 52;

[0016] The auxiliary server 4 is respectively connected to the first ring network 51 and the second ring network 52.

[0017] Preferably, in the same programmable logic controller 7, the main PLC 71 establishes a network connection with the first ring network 51 and the second ring network 52 through a first switch 9;

[0018] The auxiliary PLC 72 establishes a network connection with the first ring network 51 and the second ring network 52 through the first switch 9.

[0019] Preferably, the programmable logic controller 7 is deployed in at least one workstation among the upper lock head working gate station, the upper lock head tilting gate station, the lower lock head working gate station, the lower lock head tilting gate station, the upper barge head station, the lower barge head station, the main drive station, and the main engine room station.

[0020] Preferably, the fiber optic ring network 5 is a dual 1000M industrial Ethernet ring network.

[0021] Preferably, one or more of an accelerometer, a speedometer, a current sensor, and a voltage sensor are deployed at the workstation, and the programmable logic controller 7 is used to receive the data monitored by the sensor.

[0022] Preferably, a second switch 53 is provided on the fiber optic ring network 5. The second switch 53 includes a first sub-switch 53a and a second sub-switch 53b. The first sub-switch 53a is provided on the first ring network 51, and the second sub-switch 53b is provided on the second ring network 52.

[0023] Preferably, both the first sub-switch 53a and the second sub-switch 53b are Siemens switches.

[0024] The present utility model provides a system for realizing the safe and reliable operation of a ship lift, including: a main operator station, an auxiliary operator station, a main server, an auxiliary server, a fiber optic ring network, and a plurality of programmable logic controllers. Among them: the main server is respectively connected to the main operator station and the auxiliary operator station, and the main server is also connected to all the programmable logic controllers through the fiber optic ring network; the auxiliary server is respectively connected to the main operator station and the auxiliary operator station, and the auxiliary server is also connected to all the programmable logic controllers through the fiber optic ring network; wherein, both the main operator station and the auxiliary operator can issue instructions, but only one of the operator stations can issue instructions at the same time. By default, the main operator station issues instructions. When the main operator station fails or is out of service, the auxiliary operator station switches to the authority of the main operator station for control. Both the main server and the auxiliary server can receive the status information of the programmable logic controllers, and the main server and the auxiliary server synchronize data with each other. When the main server fails or is out of service, the auxiliary server replaces the main server to work. By adopting a redundant system, the reliability of the system is improved, and the fault tolerance rate and stability of the system operation are ensured. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0026] Figure 1 It is a system block diagram of a system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present utility model;

[0027] Figure 2 It is another system block diagram of a system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present utility model;

[0028] Figure 3 It is a system block diagram in a programmable logic controller of a system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present utility model;

[0029] Figure 4 It is a system block diagram of another system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present invention;

[0030] Figure 5 It is a system block diagram of another system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present invention;

[0031] Figure 6 It is a system block diagram of another system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present invention;

[0032] Figure 7 It is an application flow chart of a system for realizing the safe and reliable operation of a ship lift provided by an embodiment of the present invention;

[0033] The illustrated reference numerals are as follows:

[0034] Main operator station 1; auxiliary operator station 2; main server 3; auxiliary server 4; fiber optic ring network 5; first ring network 51; second ring network 52; second switch 53; first sub-switch 53a; second sub-switch 53b; programmable logic controller 7; main PLC 71; auxiliary PLC 72; input / output module 6; engineer station 8; first switch 9. Detailed implementation manners

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present disclosure.

[0037] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, for example, in the description, for the same type of nouns, the method of adding "A" and "B" at the end is used to describe them as two independent individuals. In this case, the features defined with "A" and "B" are only used for the purpose of distinguishing similar individuals and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0038] In the description of some embodiments, the expressions "coupled", "coupled to" and "connected" and their derivatives may be used. For example, in the description of some embodiments, the term "connected" may be used to indicate that two or more components have direct physical contact or electrical contact with each other. Another example is that in the description of some embodiments, the term "coupled to" may be used to indicate that two or more components have direct physical contact or electrical contact. However, the term "connected" or "coupled" may also mean that two or more components do not have direct contact with each other, but still cooperate or interact with each other, such as "optical path coupling", "wireless connection", etc. The embodiments disclosed herein are not necessarily limited to the content of the present utility model.

[0039] In the description of the present utility model, there will be involved the expression "A and / or B", where A and B are used to formally represent specific feature contents, and the corresponding expression includes the following three combinations: only A, only B, and the combination of A and B.

[0040] As used in the present utility model, "about", "substantially" or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the errors associated with the measurement of a particular quantity, i.e., the limitations of the measurement system.

[0041] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is to be construed in an open - inclusive sense, i.e., "including, but not limited to". In the description of the specification, terms such as "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" are intended to indicate that specific features, structures, materials, or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above - mentioned terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above - mentioned terms due to reasons such as the order and position of appearance, there is no limitation that they can be carried by one embodiment or example in a combined manner.

[0042] In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0043] A ship lift refers to a "navigation structure" set up for ships to pass through the concentrated water level drop on the waterway. To ensure the normal operation of the ship lift, it is necessary to monitor the state of the ship lift, and the ship lift electronic inspection technology can be used to monitor the state of the ship lift. Electronic inspection is a method of monitoring and evaluating the state of the ship lift by using sensors, monitoring equipment, and information technology. For example, various sensors (such as accelerometers, speedometers, current sensors, voltage sensors, etc.) are set in different areas of the ship lift to monitor the operating state of the ship lift in real - time, and the information monitored by the sensors is transmitted to the user operation terminal through the Internet to achieve remote monitoring and control. In this way, the operation personnel can access the state information of the ship lift at any time and place, and thus take necessary measures in a timely manner. However, the reliability of the current ship lift monitoring system is relatively low. To solve this problem, this embodiment provides a system for realizing the safe and reliable operation of the ship lift, as described in the following embodiments.

[0044] Embodiment 1:

[0045] The embodiment of the present utility model provides a system for realizing the safe and reliable operation of a ship lift, as Figure 1 shown, including: a main operator station 1, a secondary operator station 2, a main server 3, a secondary server 4, an optical fiber ring network 5, and a plurality of programmable logic controllers 7. The plurality of programmable logic controllers 7 are deployed at the corresponding workstations of the ship lift, where:

[0046] The main server 3 is respectively connected to the main operator station 1 and the secondary operator station 2, and the main server 3 is also connected to all the programmable logic controllers 7 through the fiber optic ring network 5; the secondary server 4 is respectively connected to the main operator station 1 and the secondary operator station 2, and the secondary server 4 is also connected to all the programmable logic controllers 7 through the fiber optic ring network 5.

[0047] One of the main operator station 1 and the secondary operator station 2 is used to issue instructions; both the main server 3 and the secondary server 4 are used to receive the instructions issued by the operator station and receive data from each programmable logic controller 7 through the fiber optic ring network 5.

[0048] Among them, the operator station can specifically be a computer, and the instructions issued by the operator station are triggered by the operator and can be ship lift monitoring instructions, etc.

[0049] Among them, the fiber optic ring network 5 can be a dual 1000M industrial Ethernet ring network

[0050] Among them, the data of the main server 3 and the secondary server 4 are kept synchronized. By default, the main operator station 1 and the main server 3 are the primary devices, and the secondary operator station 2 and the secondary server 4 are the secondary devices. When the primary devices fail and are out of service, the secondary devices are switched to be the primary devices.

[0051] In this embodiment, the programmable logic controller (PLC) 7 is a special computer used to control machinery and processes in various industrial environments. It is mainly responsible for receiving input signals, processing data, and controlling output devices to automate industrial processes. The programmable logic controller 7 realizes communication and data exchange between different devices or networks through cooperation with network devices (such as industrial routers and switches).

[0052] In this embodiment, programmable logic controllers 7 are deployed in the corresponding workstations of the ship lift. Specifically, the programmable logic controllers 7 are deployed in at least one of the workstations including the upper lock head working gate station, the upper lock head tilting gate station, the lower lock head working gate station, the lower lock head tilting gate station, the upper cabin head station, the lower cabin head station, the main drive station, and the main engine room station. In this embodiment, each workstation is used to execute different commands, and multiple devices for executing corresponding commands are also set in each workstation. The programmable logic controller 7 is used to issue corresponding control commands to each device or collect status data of each device and then upload it to the server.

[0053] In this embodiment, one or more of an accelerometer, a speedometer, a current sensor, and a voltage sensor are deployed at the workstation, and the programmable logic controller 7 is configured to receive the data monitored by the sensors. A plurality of different types of sensors are deployed at the workstation. The operating states of the various devices in each workstation are monitored by the sensors, and the monitoring data monitored by the sensors is transmitted to the programmable logic controller 7. The programmable logic controller 7 sends the monitoring data to the operator station via a network device (such as a switch) to obtain the status information of the corresponding workstation.

[0054] It should be noted here that the monitoring of the status of the programmable logic controller 7 described below essentially refers to the monitoring of the status of the workstation where the programmable logic controller 7 is deployed.

[0055] As Figure 1 shown, in this embodiment, the system for realizing the safe and reliable operation of the ship lift is used in the monitoring and dispatching scenario of the ship lift to dispatch and monitor each workstation of the ship lift. The main operator station 1, the auxiliary operator station 2, the main server 3, and the auxiliary server 4 can jointly serve as the upper management layer. The upper management layer further includes a fast Ethernet switch, a printer, and other network components. The upper management layer is used to interact with the user, issue commands through the upper management layer, and collect the data streams of each programmable logic controller 7, so as to obtain the current and historical working information of each programmable logic controller 7, thereby realizing functions such as centralized control, status monitoring, and data acquisition and storage of the entire ship lift.

[0056] Among them, both the main operator station 1 and the auxiliary operator station 2 can be used to issue commands and monitor the status of each programmable logic controller 7. However, only one operator station can issue commands at the same time.

[0057] In one embodiment, when both the main operator station 1 and the auxiliary operator station 2 are turned on and operating normally, the main operator station 1 is used to issue commands and monitor the status of each programmable logic controller 7, and the auxiliary operator station 2 is used to monitor the status of each programmable logic controller 7, avoiding the situation where the two operator stations can issue commands at the same time, resulting in duplicate or contradictory commands issued by the two operator stations. At the same time, the main operator station 1 and the auxiliary operator station 2 can be switched by permission. When the main operator station 1 fails or is out of service, the auxiliary operator station 2 can switch to the permission of the main operator station 1, realizing the hot standby function between the main operator station 1 and the auxiliary operator station 2, and ensuring the operation stability of the operator station.

[0058] Both the main server 3 and the secondary server 4 can be used for caching and synchronizing data. The data collected by the main server 3 and the secondary server 4 is completely synchronized, and both the main server 3 and the secondary server 4 have corresponding process-driven connections and archived data, ensuring that when any one of the main server 3 and the secondary server 4 fails, the other server can ensure data synchronization. When operating normally, both the main operator station 1 and the secondary operator station 2 interact with the main server 3, that is, issue commands to each programmable logic controller 7 through the main server 3, and at the same time obtain the data of each programmable logic controller 7 collected from the main server 3. When the main server 3 fails or is out of service, switch the main operator station 1 and the secondary operator station 2 to interact with the secondary server 4. Since the secondary server 4 maintains data synchronization with the main server 3 during normal operation, when switched to the secondary server 4, the secondary server 4 can ensure the feasibility of interaction with the main operator station 1 and the secondary operator, avoiding the unavailability of the entire system when a single server is out of service.

[0059] In this embodiment, the switching between the main operator station 1 and the secondary operator station 2 can be realized through internal software, that is, the identification permissions corresponding to the main operator station 1 and the secondary operator station 2 can be switched to realize the hot standby function between the main operator station 1 and the secondary operator station 2.

[0060] In this embodiment, the programmable logic controllers 7 can be deployed at the upper lock head working gate control station, upper lock head drop gate station, main engine room station, main drive station, lower lock head working gate station, lower lock head drop gate station, upper cabin head station, lower cabin head station, etc. Different programmable logic controllers 7 are used to execute different tasks. By dispatching commands to each different programmable logic controller 7, different actions of the ship lift are completed; all the programmable logic controllers 7 are connected to the fiber optic ring network 5 through a switch, and at the same time the main server 3 and the secondary server 4 are also connected to the fiber optic ring network 5. The main operator station 1 or the secondary operator station 2 issues commands to the main server 3 and the secondary server 4, and the main server 3 and the secondary server 4 issue commands to the corresponding programmable logic controllers 7 through the fiber optic ring network 5. At the same time, each programmable logic controller 7 also uploads its own data to the main server 3 and the secondary server 4 through the fiber optic ring network 5. The main operator station 1 and the secondary operator station 2 obtain the data of each programmable logic controller 7 through the main server 3 and the secondary server 4 to realize the monitoring of each operation task.

[0061] Furthermore, considering that when each programmable logic controller 7 transmits data to the fiber optic ring network 5 or receives data from the fiber optic ring network 5, the host for controlling each programmable logic controller 7 may fail, resulting in the deactivation of the corresponding programmable logic controller 7. To avoid the above situation, this embodiment also involves the following design:

[0062] As Figure 2 and Figure 3 shown, each of the programmable logic controllers 7 includes a main PLC 71 and an auxiliary PLC 72, where: both the main PLC 71 and the auxiliary PLC 72 are connected to the main server 3 through the fiber optic ring network 5; both the main PLC 71 and the auxiliary PLC 72 are connected to the auxiliary server 4 through the fiber optic ring network 5.

[0063] In this embodiment, each programmable logic controller 7 includes a main PLC 71 and an auxiliary PLC 72. The main PLC 71 and the auxiliary PLC 72 are both control hosts of the corresponding programmable logic controller 7, and both the main PLC 71 and the auxiliary PLC 72 are connected to the fiber optic ring network 5. When the programmable logic controller 7 is running normally, the main PLC 71 receives commands from the main operator station 1 or the auxiliary operator station 2 through the fiber optic ring network 5. The main PLC 71 processes the received commands and executes corresponding controls on the programmable logic controller 7 according to the commands. At the same time, the main PLC 71 also sends the data information of the corresponding programmable logic controller 7 to the main server 3 or the auxiliary server 4 through the fiber optic ring network 5 through the fiber optic ring network 5, so that the main operator station 1 and the auxiliary operator station 2 can monitor. The main PLCs 71 of different programmable logic controllers 7 can also perform data interaction through the fiber optic ring network 5. In this embodiment, the main PLC 71 and the auxiliary PLC 72 in the same programmable logic controller 7 are also connected to each other to ensure real-time data synchronization between the main PLC 71 and the auxiliary PLC 72. When the main PLC 71 fails or is disabled, the main PLC 71 and the auxiliary PLC 72 are switched, that is, the auxiliary PLC 72 is used to control the corresponding programmable logic controller 7, and the data of the programmable logic controller 7 is interacted through the auxiliary PLC 72.

[0064] As Figure 2 and Figure 3 shown, one or more input / output modules 6 are correspondingly connected to each of the programmable logic controllers 7, and each input / output module 6 is connected to both the main PLC 71 and the auxiliary PLC 72 in the same programmable logic controller 7 at the same time. The input / output module 6 can be an I / O input / output module, and the input / output module 6 can be connected to devices such as sensors to send the information monitored by the sensors to the programmable logic controller 7.

[0065] Since multiple different devices are provided in each programmable logic controller 7 to cooperate in performing operations that each programmable logic controller 7 can execute, and each device needs to have commands issued and be controlled through the main PLC 71 or the auxiliary PLC 72, the main PLC 71 and the auxiliary PLC 72 are both connected to one or more input / output modules 6. On the one hand, the main PLC 71 or the auxiliary PLC 72 issues corresponding control commands to each device through each input / output module 6. On the other hand, they also obtain data in each device through each input / output module 6 and use it to upload to the main server 3 and the auxiliary server 4 through the fiber optic ring network 5 for monitoring by the main operator station 1 and the auxiliary operator station 2.

[0066] As Figure 2 and Figure 3 shown, furthermore, in this embodiment, in order to improve the safety and reliability of the entire fiber optic ring network 5, the following design is also involved: The fiber optic ring network 5 includes a first ring network 51 and a second ring network 52, where: The main PLC 71 in all the programmable logic controllers 7 is simultaneously connected to both the first ring network 51 and the second ring network 52, and the auxiliary PLC 72 in all the programmable logic controllers 7 is simultaneously connected to both the first ring network 51 and the second ring network 52; The main server 3 is respectively connected to the first ring network 51 and the second ring network 52; The auxiliary server 4 is respectively connected to the first ring network 51 and the second ring network 52.

[0067] In this embodiment, with the first ring network 51 and the second ring network 52 as a dual-ring network, the main PLC 71 and the auxiliary PLC 72 in each workbench are both simultaneously connected to the first ring network 51 and the second ring network 52, and the main server 3 and the auxiliary server 4 are also simultaneously connected to the first ring network 51 and the second ring network 52. When data needs to be uploaded to the fiber optic ring network 5, the data will be copied in both the first ring network 51 and the second ring network 52 at the same time and transmitted simultaneously. When any one of the first ring network 51 or the second ring network 52 fails, the data can continue to be transmitted through the other ring network to maintain communication, not only making the system failure rate lower, but also eliminating the automatic switching step. In this embodiment, the measured recovery time is about 100 ms.

[0068] In this embodiment, the main PLC 71 and the auxiliary PLC 72 in each programmable logic controller 7 also need to be connected to the first ring network 51 and the second ring network 52 through corresponding switches, and the corresponding design is as follows:

[0069] As Figure 2As shown in the figure, in the same programmable logic controller 7, the main PLC 71 establishes network connections with the first ring network 51 and the second ring network 52 through the first switch 9; the auxiliary PLC 72 establishes network connections with the first ring network 51 and the second ring network 52 through the first switch 9.

[0070] Among them, a switch is a network device for forwarding electrical (optical) signals, which can provide exclusive electrical signal paths for any two network nodes accessing the switch. According to different working positions, switches can be divided into wide area network switches and local area network switches. The main function of a switch is to connect local area networks or high-performance servers or workstations through bridging functions, providing more connection ports for sub-networks to connect more computers.

[0071] Furthermore, considering that corresponding software needs to be installed or corresponding information needs to be transmitted for each programmable logic controller 7 and each server in the ship lift, an administrator-privileged host needs to be set up separately and connected to the fiber optic ring network 5 to achieve software installation and data upload for each programmable logic controller 7. The corresponding design is as follows:

[0072] As Figure 4 shown, the system for realizing the safe and reliable operation of the ship lift further includes an engineer station 8. The engineer station 8 is connected to the fiber optic ring network 5, and the engineer station 8 is connected to the main operator station 1 and the auxiliary operator station 2.

[0073] In this embodiment, the engineer station 8 pre-distributes and installs corresponding control software to each workbench in advance. During actual operation, the control software corresponding to each workbench controls each device in the workbench by processing the received commands. At the same time, each workbench also uploads its own data through the corresponding control software.

[0074] In this embodiment, as Figure 5 and Figure 6 shown, a second switch 53 is provided on the fiber optic ring network 5. The second switch 53 includes a first sub-switch 53a and a second sub-switch 53b. The first sub-switch 53a is provided on the first ring network 51, and the second sub-switch 53b is provided on the second ring network 52. Among them, both the first sub-switch 53a and the second sub-switch 53b can be Siemens switches.

[0075] Furthermore, as Figure 7 shown, the ship lift can operate Figure 7The step process in it is used to achieve the purposes of real-time performance, openness, interchangeability, usability, easy operation and easy maintenance of the system. The initial conditions for the corresponding process are as follows: the ship chamber is in a docked state with the lower lock head, the working brake is on, the safety brake is on, the jacking mechanism is pushed out, the docking locking hook is locked in place, the lower head reclining door of the ship chamber and the lower head reclining door of the lower lock head are opened in place, the upper head anti-collision beam of the ship chamber is lifted in place, the lower head anti-collision beam of the ship chamber is lowered in place, the downstream sealing frame of the ship chamber is pushed out, and the downstream gap filling with water is completed. All navigation signal lights are red on and green off, and the water area of the ship chamber is connected to the downstream waterway.

[0076] In the whole process, multiple branch processes are adopted to control and perform emergency operations for the entire ship lift, including single-mechanism upward process, single-mechanism downward process, sectional upward process, sectional downward process, automatic upward process, automatic downward process, initialization upward process, initialization downward process, navigation suspension upward process, navigation suspension downward process and emergency protection process. Each process adopts modular programming, that is, one process has one control script, and the parameter transfer between processes is carried out by using global variables. The reliable remote operation of the ship lift is realized through the process. The operator realizes the preparatory work for the ship to enter the ship chamber by running the initialization upward process and the initialization downward process; after the ship enters the ship chamber, the single-mechanism upward process and the single-mechanism downward process are run, or the sectional upward process and the sectional downward process are run, or the automatic upward process and the automatic downward process are run to realize the upward or downward movement of the ship; when the operator ends all processes, the navigation suspension process is taken to dock the ship chamber at a safe position; in any process operation, when an emergency occurs, the operator runs the emergency protection process. Each of these sub-processes is independent and can also be switched with each other, improving the safety of the ship lift operation.

[0077] The operation process of the ship lift can be implemented according to the existing technology. The core of this embodiment lies in designing a redundant structure to improve reliability.

[0078] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A system for realizing the safe and reliable operation of a ship lift, characterized in that, Including: A main operator station (1), an auxiliary operator station (2), a main server (3), an auxiliary server (4), an optical fiber ring network (5), and a plurality of programmable logic controllers (7). The plurality of programmable logic controllers (7) are deployed at corresponding workstations of the ship lift, where: The main server (3) is respectively connected to the main operator station (1) and the auxiliary operator station (2), and the main server (3) is also connected to all the programmable logic controllers (7) through the optical fiber ring network (5); The auxiliary server (4) is respectively connected to the main operator station (1) and the auxiliary operator station (2), and the auxiliary server (4) is also connected to all the programmable logic controllers (7) through the optical fiber ring network (5); One of the main operator station (1) and the auxiliary operator station (2) is used to issue instructions; both the main server (3) and the auxiliary server (4) are used to receive the instructions issued by the operator station, and receive data from each programmable logic controller (7) through the optical fiber ring network (5).

2. The system for realizing the safe and reliable operation of a ship lift according to claim 1, characterized in that, Each of the programmable logic controllers (7) includes a main PLC (71) and an auxiliary PLC (72), where: Both the main PLC (71) and the auxiliary PLC (72) are connected to the main server (3) through the optical fiber ring network (5); Both the main PLC (71) and the auxiliary PLC (72) are connected to the auxiliary server (4) through the optical fiber ring network (5).

3. The system for realizing the safe and reliable operation of the ship lift according to claim 2, characterized in that, Each of the programmable logic controllers (7) is correspondingly connected to one or more input / output modules (6), and each input / output module (6) is simultaneously connected to the main PLC (71) and the auxiliary PLC (72) in the same programmable logic controller (7).

4. The system for realizing the safe and reliable operation of a ship lift according to claim 2, characterized in that, The optical fiber ring network (5) includes a first ring network (51) and a second ring network (52), where: All the main PLCs (71) in all the programmable logic controllers (7) are simultaneously connected to the first ring network (51) and the second ring network (52), and all the auxiliary PLCs (72) in all the programmable logic controllers (7) are simultaneously connected to the first ring network (51) and the second ring network (52); The main server (3) is respectively connected to the first ring network (51) and the second ring network (52); The auxiliary server (4) is respectively connected to the first ring network (51) and the second ring network (52).

5. The system for realizing the safe and reliable operation of the ship lift according to claim 4, wherein In the same programmable logic controller (7), the main PLC (71) establishes a network connection with the first ring network (51) and the second ring network (52) through a first switch (9); The auxiliary PLC (72) establishes a network connection with the first ring network (51) and the second ring network (52) through the first switch (9).

6. The system for realizing the safe and reliable operation of a ship lift according to claim 1, characterized in that, The programmable logic controller (7) is deployed at at least one workstation among the upper lock head working gate station, the upper lock head tilting gate station, the lower lock head working gate station, the lower lock head tilting gate station, the upper cabin head station, the lower cabin head station, the main drive station, and the main machine room station.

7. The system for realizing the safe and reliable operation of the ship lift according to claim 6, characterized in that, One or more of an accelerometer, a velocimeter, a current sensor, and a voltage sensor are deployed at the workstation, and the programmable logic controller (7) is configured to receive the data monitored by the sensors.

8. The system for realizing the safe and reliable operation of a ship lift according to claim 1, characterized in that, The fiber optic ring network (5) is a dual 1000M industrial Ethernet ring network.

9. The system for realizing the safe and reliable operation of a ship lift according to claim 4, characterized in that, A second switch (53) is provided on the fiber optic ring network (5), and the second switch (53) includes a first sub-switch (53a) and a second sub-switch (53b). The first sub-switch (53a) is provided on the first ring network (51), and the second sub-switch (53b) is provided on the second ring network (52).

10. The system for realizing the safe and reliable operation of a ship lift according to claim 9, characterized in that, Both the first sub-switch (53a) and the second sub-switch (53b) are Siemens switches.

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