Distributed daisy chain assembly system for ship and control method

Abstract

The invention discloses a distributed daisy chain assembly system for a ship and a control method, and the system comprises a DDC display and control terminal which is in power supply connection with a storage battery for the ship; the DDC acquisition modules are respectively arranged on power supply lines of node equipment in the ship; the DDC acquisition module is in control connection with the DDC display control terminal; the DDC acquisition module monitors equipment information of node equipment through a power supply line and sends the equipment information to the DDC display control terminal; the DDC display control terminal monitors the state of the node equipment according to the equipment information, carries out abnormal condition reminding according to the state of the node equipment, carries out online addition, deletion, modification and check management on the DDC acquisition module and carries out real-time power-on and power-off control on the DDC acquisition module; according to the invention, the number of ship distribution box equipment is greatly reduced, the equipment installation and maintenance are efficient and convenient by means of the plug-and-play modular characteristic, and the software and hardware dual-redundancy design ensures the high stability of system operation.

Description

Technical Field

[0001] The present invention relates to the field of integrated control technology, and particularly to a distributed daisy chain assembly system and control method for ships. Background Art

[0002] In modern ship electrical systems, with the continuous improvement of electrification, the power equipment and control systems equipped on board are increasing day by day, posing higher requirements for the reliability and efficiency of power distribution and communication; currently, power line carrier communication technology (PLC, Power Line Communication), as a commonly used remote data transmission technology as Figure 1 shown, because it can realize signal transmission through power lines, is widely used in systems such as smart meters and power monitoring, and has advantages such as no need for additional wiring and convenient installation; in the application of smart meters, power line carrier communication technology modulates data signals onto power lines and realizes data transmission and remote monitoring of terminal devices through power lines, greatly improving the convenience of data acquisition and monitoring.

[0003] However, in this special application scenario of ships, the existing carrier communication technology and its applications still have many deficiencies and cannot fully meet the requirements of complex ship power systems; especially, the control and communication of ship power equipment face the following technical problems and application defects: (1) There are many marine distribution boxes, the installation is complex, and communication is vulnerable to interference: There are a large number of distribution boxes and power equipment on ships, and the power line wiring is complex and has a wide coverage; in this case of high-density wiring, problems such as signal crosstalk and impedance mismatch are likely to occur between different devices, resulting in serious attenuation of carrier communication signals and even communication failures; in addition, the working environment of ships is special, and on-board electrical equipment may be subject to strong electromagnetic interference such as motor startup, switch operation, and electromagnetic radiation, further reducing the stability and reliability of carrier communication; therefore, the anti-interference ability of the communication system has become a bottleneck restricting the application of technology, thus affecting the efficient communication between devices.

[0004] (2) Manual control of power-on and power-off operations is inefficient and inconvenient: In the existing power-on and power-off control modes of ship equipment, the management and operation of equipment mostly rely on manual control, and each device is controlled one by one through devices such as control boxes; this operation method is inefficient and difficult to meet the increasingly complex requirements of modern ship power systems; especially when there are many devices and they are widely distributed, manual operation inevitably increases the workload of maintenance personnel and is prone to operation errors due to human factors, increasing risks such as equipment damage and even power outages; in addition, in the face of emergencies or the need for quick response, the reaction speed and flexibility of manual control are significantly insufficient.

[0005] (3) The process of connecting different devices to the ship system is cumbersome and the system integration is poor: The process of connecting different devices to the ship system is relatively cumbersome. It is usually necessary to carry out electrical connection, parameter configuration and communication debugging of each device one by one. The engineering workload is large and the integration is not high. This traditional operation method not only prolongs the installation and debugging time of the equipment, but also increases the difficulty of integrating the equipment into the ship management system, making it difficult to achieve unified centralized control and management. In addition, due to the particularity of the ship's operating environment, the access equipment needs to have strong compatibility and adaptability, which is difficult to meet with the traditional method, thereby lowering the integration and automation level of the entire ship system.

[0006] (4) Low intelligence level, difficult to meet the application needs of modern ships: The existing carrier communication technology and equipment control methods rely too much on traditional manual operation and fail to make full use of intelligent and automated technologies. In the design and application trend of modern intelligent ships, the power system is required to have higher automation, remote control and status monitoring capabilities; however, the traditional carrier communication solution is limited by technical means and communication reliability, and it is difficult to achieve efficient equipment monitoring and data transmission under complex ship working conditions, which further affects the intelligent upgrade and maintenance management of ship systems.

[0007] In summary, the existing technologies have problems in ship carrier communication and equipment management, such as large communication interference, low manual control efficiency, poor equipment access and system integration, and insufficient intelligence. These problems limit the efficient operation of power systems in modern ships and cannot fully meet the needs of modern ships for power management systems. Therefore, in response to these technical defects, the development of more reliable and efficient power carrier communication technology and equipment control systems has become an important direction for the development of intelligent ship electrical systems. Summary of the invention

[0008] The object of the present invention is to provide a distributed daisy chain assembly system and a control method for a ship, thereby solving all or one of the above-mentioned problems existing in the prior art.

[0009] In order to solve the above technical problems, the specific technical solutions of the present invention are as follows: In one aspect, the present invention provides a distributed daisy chain assembly system for a ship, comprising: DDC display and control terminal and several DDC acquisition modules; The DDC display and control terminal is connected to the marine battery power supply, and several of the DDC acquisition modules are respectively arranged on the power supply lines of the node equipment in the ship, and several of the DDC acquisition modules are respectively connected to the DDC display and control terminal for control; the DDC display and control terminal supports communication redundancy and power supply redundancy; The DDC acquisition modules are used to: Monitor the device information of several of the node devices through the power supply line respectively, and send the device information of several of them to the DDC display and control terminal; In addition, monitor the over-temperature and over-load conditions of several of the node devices according to the device information of several of the node devices, and record the monitored data as a log; The DDC display and control terminal is used for: Monitor the status of several of the node devices according to the device information of several of them, and give an alarm for abnormal conditions according to the status of several of the node devices; In addition, perform online addition, deletion, modification, and query management on several of the DDC acquisition modules; In addition, perform real-time power-on and power-off control on several of the DDC acquisition modules.

[0010] As an improved solution, a backup power supply and a voltage detector are also connected to the DDC display and control terminal; The DDC display and control terminal is also used to detect the power supply situation of the marine storage battery in real time through the voltage detector, and switch the backup power supply to the power supply when the power supply voltage is abnormal.

[0011] As an improved solution, a main CAN and a slave CAN are provided on the DDC display and control terminal; The DDC display and control terminal is also used to perform data collaborative transmission using the main CAN and the slave CAN; when the main CAN is busy, the DDC display and control terminal uses the slave CAN to load the communication traffic; when the main CAN fails, the DDC display and control terminal uses the slave CAN to take over the data transmission task.

[0012] As an improved solution, each DDC acquisition module adopts a waterproof design; A filter circuit is provided inside each DDC acquisition module; A topology interface is provided on each DDC acquisition module.

[0013] As an improved solution, each DDC acquisition module is specifically further used for: Monitor the temperature, voltage, current and power of the corresponding node device in real time, and judge the over-temperature and over-load conditions of the corresponding node device according to the monitored data; In addition, when the over-temperature and over-load conditions of the corresponding node device are over-temperature or over-load, interrupt the voltage output of the corresponding node device and upload the monitored data to the DDC display and control terminal.

[0014] As an improved solution, a device list is configured in the DDC display and control terminal; The device list stores device information corresponding to several of the DDC acquisition devices respectively; The device information includes: a unique device code; The DDC display and control terminal is specifically further configured to: perform online addition, deletion, modification, and query management on several of the DDC acquisition devices based on the device list.

[0015] As an improved solution, the DDC display and control terminal is specifically further configured to: Enter the DDC acquisition device into the device list by scanning the unique device code of the DDC acquisition device or manually inputting the unique device code of the DDC acquisition module; And, when any of the DDC acquisition modules fails, delete the faulty DDC acquisition module in the device list; And, perform custom naming on the DDC acquisition devices entered into the device list; And, query the device status of each DDC acquisition module through the device list, and in response to a click operation on any of the DDC acquisition modules in the device list, jump to a display interface recording the device real-time data of the corresponding DDC acquisition module.

[0016] As an improved solution, the DDC display and control terminal is specifically further configured to: Upload the device real-time data obtained through the DDC acquisition module to a cloud server; The cloud server is used to respond to a remote device real-time data query requirement.

[0017] As an improved solution, the DDC display and control terminal is specifically further configured to: When it is determined that a node device is abnormal according to the monitored data of the DDC acquisition module, perform an abnormal maintenance prompt; And, after the maintenance of the abnormal node device, power on the node device after maintenance through the corresponding DDC acquisition module.

[0018] On the other hand, the present invention also provides a control method for a distributed daisy chain assembly system for a ship, including the following steps: Call several DDC acquisition modules to monitor the device information of several node devices through a power supply line, send several pieces of the device information to a DDC display and control terminal, call several of the DDC acquisition modules to analyze the over-temperature and overload conditions of several of the node devices according to the monitored data, and record the monitored data as a log; Call the DDC display and control terminal to monitor the status of several node devices according to several pieces of the device information, and give an alarm for abnormal situations according to the status of several node devices; call the DDC display and control terminal to perform online addition, deletion, modification, and query management on several DDC acquisition modules, and perform real-time power-on and power-off control on several DDC acquisition modules.

[0019] The beneficial effects of the technical solution of the present invention are as follows: 1. For the distributed daisy chain assembly system for ships of the present invention, the control operation is simple, the device access is convenient, the system runs stably and reliably, the modular design effectively shortens the construction period, helps the shipyard increase revenue, and accelerates the transformation to intelligent manufacturing; the number of ship distribution box devices is greatly reduced, and with the plug-and-play modular characteristics, the device installation and maintenance are efficient and convenient, and the software and hardware dual redundancy design ensures the high stability of the system operation; the shipbuilding is made intelligent, the construction efficiency is improved with a low-cost digital solution, the later maintenance process is simplified, rich revenue is created for the shipyard, the national energy conservation and emission reduction policy is actively responded to, and the digital level of the shipyard is significantly improved.

[0020] 2. The control method of the present invention can call the system modules in an orderly manner, thereby realizing the system logic of the distributed daisy chain assembly system for ships of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the application principle of the PLC technology in the background art; Figure 2 It is a schematic diagram of the traditional ship wiring method in the prior art; Figure 3 It is a schematic diagram of the application architecture of the distributed daisy chain assembly system for ships according to Embodiment 1 of the present invention; Figure 4 It is a schematic diagram of the hardware redundancy structure of the DDC display and control terminal in the distributed daisy chain assembly system for ships according to Embodiment 1 of the present invention; Figure 5 It is a schematic diagram of the architecture of the DDC acquisition module in the distributed daisy chain assembly system for ships according to Embodiment 1 of the present invention; Figure 6 It is a schematic diagram of the dual power supply switching circuit of the DDC display and control terminal in the distributed daisy chain assembly system for ships according to Embodiment 1 of the present invention; Figure 7 It is a detailed structural schematic diagram of the dual - power - supply switching circuit of the DDC display and control terminal in the distributed daisy - chain assembly system for ships described in Embodiment 1 of the present invention; Figure 8 It is a schematic flow chart of the control method described in Embodiment 2 of the present invention. Specific embodiments

[0023] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] In the description of the present invention, it should be noted that the embodiments described in the present invention are part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0025] Terms such as "first", "second", etc. in the description and claims of this article and the above - mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments described in this article can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non - exclusive inclusion. For example, a process, method, device, product, or equipment that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or equipment.

[0026] DDC (Distributed daisy chain assembly system) is a distributed daisy - chain assembly system; PLC (Power Line Communication) is a power - line carrier communication technology. Embodiment 1

[0027] This embodiment provides a distributed daisy - chain assembly system for ships, as Figures 3 to 7 shown, including: a DDC display and control terminal and several DDC acquisition modules; this system is implemented based on PLC technology. Several DDC acquisition modules are arranged at the node devices of the ship, modulate the data signals that the devices need to send onto the power line, and demodulate the data signals through the power line to several DDC acquisition modules, and several DDC acquisition modules then send the acquired data signals to the DDC display and control terminal.

[0028] Among them, regarding the DDC display and control terminal, it includes the following content: (1) Power redundancy function: Specifically, the DDC display and control terminal is connected to the marine battery (main power supply) for power supply, and at the same time, a backup power supply is connected. A low-power switching transistor and a power MOSFET are used for the switching control of the backup power supply; Specifically, an LM358 operational amplifier is used as a voltage detector to compare the voltage of the main power supply with a preset reference voltage in real time. When the voltage of the main power supply is lower than the preset reference voltage, it is determined that the circuit voltage is abnormal and a low level is output. At this time, the low-power switching transistor conducts, causing the power MOSFET to conduct, thereby switching the power supply to the backup power supply to ensure the normal power supply of the equipment.

[0029] Specifically, when the voltage of the main power supply is not lower than the preset reference voltage, it is determined that the circuit voltage is normal and a high level is output, and the main power supply is still used for power supply.

[0030] (2) Communication redundancy function: Specifically, the DDC display and control terminal adopts two completely independent CAN buses. The two CAN buses are respectively the main acquisition path and the slave acquisition path, and two CAN bus transceivers and bus controllers are used to achieve full redundancy of the physical layer and the data link layer, and then realize communication and mutual backup with several DDC acquisition modules through two independent transceiver modules; Specifically, in the initialization stage, the two bus controllers are activated at the same time. One CAN bus is used as the main CAN, and the other CAN bus is used as the slave CAN. The data collected by the slave CAN is used as the data backup of the main CAN; Specifically, in the operation stage, data is preferentially obtained through the main CAN. When the main CAN bus is busy, part of the communication traffic is shared by the slave CAN bus; when the main CAN bus fails and the slave CAN is normal, the slave CAN takes over the data transmission task, and the system will automatically read the data transmitted by the slave CAN; when the slave CAN fails and the main CAN is normal, the main CAN is still responsible for the data transmission task, and the system will automatically read the data transmitted by the main CAN; based on this, in the case of both paths being normal, dual-channel data transmission can be achieved, improving the data transmission efficiency and increasing the communication bandwidth; in the case of one path failing, the other path can be used as a backup link to ensure the stability of communication.

[0031] Among them, regarding the DDC acquisition module, it includes the following content: (1) Each DDC acquisition module is arranged on the power supply line of marine equipment and is connected to the node device through the power supply line for control, so as to ensure that when any DDC acquisition module fails, it will not affect the normal operation of other DDC acquisition modules in the downstream and upstream. Each DDC acquisition module is equipped with a 24V power supply interface, a communication interface, and a 24V input / output interface.

[0032] (2) Each DDC acquisition module selects waterproof aviation plugs and an integrally waterproof structure design for the shell, adds a filtering circuit, component selection, and unique installation technology to its circuit design, so as to ensure that it has an IP67 protection level and high seismic resistance, and at the same time meets the requirements of marine electromagnetic compatibility design.

[0033] (3) Each DDC acquisition module makes a multi-compatible topology design in terms of interfaces, so as to achieve compatibility with multiple signal accesses (including but not limited to 422, 232, CAN, 485 signals).

[0034] (4) For the convenience of quick disassembly and connection, the DDC acquisition module adopts a three-way-like design and a lightweight and miniaturized design, which is convenient for flexible use and supports access at any node of the whole ship.

[0035] (5) The DDC acquisition module has multiple functions, which are specifically as follows: (5.1) Over-temperature and overload protection logic: Specifically, each DDC acquisition module monitors the temperature, voltage, current, and power of the corresponding node in real time. Once the temperature or the output of the above data exceeds the preset threshold, it is judged that the node is overloaded, and the voltage output of the corresponding node is immediately interrupted, and the real-time data (including but not limited to the status information of the equipment at the node, the equipment connected to the node device, and the location of the node device) is uploaded to the DDC display and control terminal; Specifically, the DDC display and control terminal prompts that the corresponding node is abnormal according to the data obtained from the corresponding DDC acquisition module, and prompts relevant personnel to check the problem in time, which is convenient for relevant personnel to quickly locate the abnormal area; when the problem is solved, the DDC acquisition module restores the power supply of the corresponding node.

[0036] (5.2) Status monitoring and recording logic: Specifically, each DDC acquisition module uploads the status information of the equipment at the node collected in real time to the DDC display and control terminal, and at the same time records any abnormal situations of the equipment at the node and the above automatic protection situations as logs for storage, which is convenient for subsequent data traceability.

[0037] (5.3) Convenient management logic: Specifically, in the DDC display and control terminal, a device list of several DDC acquisition devices is configured. The DDC display and control terminal is also used to perform operations of adding, deleting, modifying, and querying the device list, thereby realizing the management of adding, deleting, modifying, and querying DDC acquisition devices; Specifically, adding means adding devices, including: each DDC acquisition device has a unique device code. During the preparation stage, relevant personnel connect a barcode scanner to the DDC display and control terminal, scan the unique device code of each DDC acquisition device with the barcode scanner or manually input the unique device code of the DDC acquisition module, and then enter the corresponding device into the device list. Each DDC acquisition device in the list supports custom naming (when each DDC acquisition device is a newly added device, it needs to be renamed again. If not named, the device ID will be defaulted as the device name).

[0038] Specifically, deleting means deleting devices, including: when the DDC acquisition module at a certain node fails, under the administrator's permission, the faulty module can be selected for deletion through the DDC display and control terminal.

[0039] Specifically, modifying means configuration modification, including: under the administrator's permission, the name of the DDC acquisition module at any online node can be custom-modified through the DDC display and control terminal.

[0040] Specifically, querying means information query, including: the status of each DDC acquisition module can be queried through the device list of the DDC display and control terminal. In this device list, by clicking on the device through the DDC display and control terminal, it will jump to an interface that real-time displays the status of the device node (under the administrator's permission, it supports displaying the real-time data sent by the devices connected to this node).

[0041] (5.4) Cloud upload logic: Specifically, a network module is configured in the DDC display and control terminal, supporting the existing Internet access function; whenever the DDC acquisition module uploads device data to the DDC display and control terminal, the DDC display and control terminal uploads the obtained device status information to the cloud server through the 5G network or other transmission networks for remote storage and backup of data; relevant users at the background management end or the command center can view the device status information of each node through the cloud server.

[0042] (5.5) Remote control logic: Specifically, there is a configured distance between the DDC display and control terminal and the DDC acquisition module itself. However, since the DDC acquisition module and the DDC display and control terminal are connected for control through marine power lines, relevant personnel can realize the remote control of all DDC acquisition modules only through the DDC display and control terminal; the remote control operations include but are not limited to: controlling the power on and off of the DDC acquisition module, or communicating with the devices connected to the DDC acquisition module.

[0043] In summary, this system realizes centralized control of multiple devices through the DDC display and control terminal, reduces the number of distribution box configurations, optimizes the space layout, and lowers equipment costs; the modular acquisition terminal design improves the equipment access efficiency, supports rapid deployment and maintenance, and reduces the complexity of operation and maintenance; the software and hardware dual-redundancy architecture ensures seamless switching between the primary and standby systems, enhances the fault self-healing ability, and significantly improves the system availability; by combining these three innovations, it collaboratively realizes the intensive and intelligent upgrade of the ship power distribution system, significantly improves the energy efficiency management efficiency and operation reliability, and meets the digital upgrade requirements of modern ships.

[0044] It should be noted that all the above examples are only for explaining the present invention and should not limit the protection scope of the present invention accordingly. Embodiment 2

[0045] Based on the same inventive concept as the shipboard distributed daisy chain assembly system described in Embodiment 1, this embodiment provides a control method, as Figure 8 shown, the control method includes the following steps: S100. Call a number of DDC acquisition modules to monitor the device information of a number of node devices through the power supply line, and send the device information to the DDC display and control terminal. Call the DDC acquisition modules to analyze the over-temperature and overload conditions of the node devices according to the monitored data, and record the monitored data as a log. S200. Call the DDC display and control terminal to monitor the status of the node devices according to the device information, and give an alert for abnormal conditions according to the status of the node devices. Call the DDC display and control terminal to perform online addition, deletion, modification, and query management on the DDC acquisition modules, and perform real-time power-on and power-off control on the DDC acquisition modules. Embodiment 3

[0046] This embodiment provides a computer-readable storage medium, including: The storage medium is used to store the computer software instructions for implementing the control method described in Embodiment 2 above, which includes a program set for executing the control method; specifically, the executable program can be built into the shipboard distributed daisy chain assembly system described in Embodiment 1. In this way, the shipboard distributed daisy chain assembly system can implement the control method described in Embodiment 2 by executing the built-in executable program.

[0047] In addition, the computer-readable storage medium of this embodiment can adopt any combination of one or more readable storage media, where the readable storage medium includes a system, device, or component of electricity, light, electromagnetism, infrared, or semiconductor, or any combination of the above.

[0048] Different from the prior art, by adopting a distributed daisy chain assembly system and control method for ships in this application, the control operation is simple, the device access is convenient, the system runs stably and reliably, the modular design effectively shortens the construction period, helps the shipyard increase its revenue, and accelerates the transformation towards intelligent manufacturing; the number of ship distribution box devices is significantly reduced, and with the plug-and-play modular characteristics, the installation and maintenance of devices are efficient and convenient, and the software and hardware dual redundancy design ensures the high stability of the system operation; the intelligent shipbuilding is achieved, the construction efficiency is improved with a low-cost digital solution, the later maintenance process is simplified, rich benefits are created for the shipyard, the national energy conservation and emission reduction policy is actively responded to, and the digital level of the shipyard is significantly improved.

[0049] It should be understood that in various embodiments herein, the sequence numbers of the above processes do not mean the order of execution is prior or subsequent. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments herein.

[0050] It should also be understood that in the embodiments herein, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0051] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described according to functions in the above description. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this article.

[0052] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific logical process of the above-described method can refer to the corresponding working processes of the system, device, and unit in the foregoing method embodiments, and will not be repeated here.

[0053] In several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there can be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Additionally, the displayed or discussed couplings or direct couplings or communication connections to each other can be indirect couplings or communication connections through some interfaces, devices, or units, and can also be in the form of electrical, mechanical, or other connections.

[0054] The units described as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the objectives of the solution of the embodiments herein.

[0055] In addition, in each embodiment herein, the functional units can be integrated in one processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

[0056] If the above-mentioned integrated units are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution herein, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment herein. The foregoing storage medium includes: USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs and other media that can store program codes.

[0057] The above are only the embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A distributed daisy-chain assembly system for a ship, characterized in that, Including: DDC display and control terminal and DDC acquisition module; The DDC display and control terminal is powered and connected to a marine battery. The DDC acquisition module is arranged on the power supply line of the corresponding node device in the ship. The DDC acquisition module is controlled and connected to the DDC display and control terminal. The DDC display and control terminal supports communication redundancy and power supply redundancy; The DDC acquisition module is used for: Monitoring the device information of the node device through the power supply line and sending the device information to the DDC display and control terminal; And, monitoring the over-temperature and over-load conditions of the node device according to the device information of the node device and recording the monitored data as a log; The DDC display and control terminal is used for: Monitoring the status of the node device according to the device information and giving an alarm for abnormal conditions according to the status of the node device; And, performing online addition, deletion, modification, and query management on the DDC acquisition module; And, performing real-time power-on and power-off control on the DDC acquisition module.

2. The distributed daisy chain assembly system for ships according to claim 1, wherein: A backup power supply and a voltage detector are also connected to the DDC display and control terminal; The DDC display and control terminal is also used for real-time detecting the power supply condition of the marine battery through the voltage detector and switching the backup power supply to the power supply when the power supply voltage is abnormal.

3. The distributed daisy chain assembly system for ships according to claim 1, wherein: A main CAN and a slave CAN are provided on the DDC display and control terminal; The DDC display and control terminal is also used for: Performing data collaborative transmission using the main CAN and the slave CAN; And, when the main CAN is busy, the DDC display and control terminal uses the slave CAN to load the communication traffic; And, when the main CAN fails, the DDC display and control terminal uses the slave CAN to take over the data transmission task.

4. The distributed daisy chain assembly system for ships according to claim 1, wherein: The DDC acquisition module adopts a waterproof design; A filter circuit is provided inside the DDC acquisition module; A topology interface is provided on the DDC acquisition module.

5. The distributed daisy chain assembly system for ships according to claim 1, wherein: The DDC acquisition module is specifically further used for: Real-time monitoring the temperature, voltage, current, and power of the corresponding node device, and judging the over-temperature and over-load conditions of the corresponding node device according to the monitored data; And, when the over-temperature and over-load conditions of the corresponding node device are over-temperature or over-load, interrupting the voltage output of the corresponding node device and uploading the monitored data to the DDC display and control terminal.

6. The distributed daisy chain assembly system for ships according to claim 1, wherein: In the DDC display and control terminal, a device list is configured; the device list stores device information corresponding to the DDC acquisition devices respectively; the device information includes: a unique device code; The DDC display and control terminal is specifically further used for: performing the online addition, deletion, modification, and query management on the DDC acquisition devices based on the device list, including: The DDC acquisition device is entered into the device list by scanning the unique device code of the DDC acquisition device or manually inputting the unique device code of the DDC acquisition module. In addition, when the DDC acquisition module fails, the faulty DDC acquisition module is deleted from the device list. In addition, the DDC acquisition devices entered into the device list are custom-named. In addition, the device status of each DDC acquisition module is queried through the device list. In response to a click operation on the DDC acquisition module in the device list, the display interface recording the device real-time data corresponding to the DDC acquisition module is jumped to.

7. The distributed daisy chain assembly system for ships according to claim 6, wherein: The DDC display and control terminal is specifically further configured to: Upload the device real-time data obtained through the DDC acquisition module to the cloud server. The cloud server is used to respond to the remote device real-time data query requirement.

8. The distributed daisy chain assembly system for ships according to claim 6, wherein: The DDC display and control terminal is specifically further configured to: When it is determined that the node device is abnormal according to the monitored data of the DDC acquisition module, an abnormal maintenance prompt is given. In addition, after the maintenance of the abnormal node device, the node device after maintenance is powered on through the corresponding DDC acquisition module.

9. The distributed daisy chain assembly system for ships according to claim 1, wherein: There are several DDC acquisition modules. The number of the DDC acquisition modules matches the number of the node devices. Several DDC acquisition modules are respectively arranged on the power supply lines of the node devices on the ship, and several DDC acquisition modules are respectively connected to the DDC display and control terminal for control.

10. The control method of the distributed daisy chain assembly system for ships according to any one of claims 1 to 9, characterized in that, The control method includes the following steps: Call several DDC acquisition modules to monitor the device information of several node devices through the power supply line, and send several pieces of device information to the DDC display and control terminal. Call several DDC acquisition modules to analyze the over-temperature and overload conditions of several node devices according to the monitored data, and record the monitored data as a log. Call the DDC display and control terminal to monitor the status of several node devices according to several pieces of device information, and give an abnormal condition reminder according to the status of several node devices. Call the DDC display and control terminal to perform online addition, deletion, modification, and query management on several DDC acquisition modules, and perform real-time power-on and power-off control on several DDC acquisition modules.

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