Design of automatic platform system for the hottes

Cabin automation platform system design

with the high development of computer technology and the continuous improvement of ship automation level, ship automation technology continues to develop to the stage of comprehensive automation of the whole ship, and all kinds of navigation, monitoring and management systems are used in ships

in ship automation, engine room automation is particularly important. The main engine, generator set, rudder propeller, clutch, air compressor and other important equipment play a very important role in the normal navigation of the ship. At present, the requirements for ship automation are not limited to local, single and independent monitoring and management, but put forward higher requirements for a large-scale, multi-level and centralized monitoring system. The integration of ship engine room monitoring system and power station management system, video monitoring system and ship shore communication system is the future development trend of ship engine room automation

as shown in Figure 1, the system structure is composed of two parts: the onshore part and the onboard part. Due to the harsh physical environment on board, large vibration, high temperature and high humidity, in order to ensure the reliability of the network, it is necessary to use wired network connection to form a local area, and the group mode is Ethernet. The onshore part also forms a network and is connected with the Internet for remote customers to browse and view

Figure 1 overall system structure

the system processing structure is distributed, and the system integration is carried out through the equal access method based on subsystems. Its core idea is to provide an open platform on which various application systems can run. The system consists of upper management and lower field control. All equipment subsystems under the field control of the lower layer are accessed in an equal manner. The upper management network runs high-performance system integration, databases and various application systems. The real-time operation data of each equipment subsystem is transmitted to the corresponding customs through the lower level field control, and the customs will process/convert the data and send it to the upper management network, and then store it in the system integration shared database. The management network realizes the unified management, monitoring and information exchange of each subsystem through the multi-function workstation equipped with the core scheduling program of the system. The application subsystem includes the automatic monitoring of various equipment and electromechanical equipment in the ship, such as fire alarm, fire protection, liquid level, valve status, power, lighting and navigation, and provides network support capabilities to realize the reception and transmission of data, language, graphics, images and other information

in order to ensure the safety and reliability of the whole monitoring system, the system network should adopt the real-time interaction scheme. In order to ensure the maintainability and scalability of the whole system, the system adopts the distributed structure as shown in Figure 2

Figure 2 structure diagram of monitoring system

system structure design includes network topology, communication protocol, related software and hardware design and other aspects. When designing the system, the integration of all subsystems should be fully considered. Starting from the scalability of the system, the international standardized Ethernet and can bus are used to form a double-layer network, and redundant designs are added to these two networks respectively to form a double redundant network information platform. When setting the network on the ship, the environmental characteristics should be considered first. Because the ship has the characteristics of vibration, swing and so on, the reliability should be highlighted in the design. The ring topology can still be reconstructed by itself in case of network failure, so as to ensure the safety and reliability of the system. Because the optical fiber transmits optical signals, the power supplies at both ends are relatively isolated, which effectively solves the serious threat that the power supplies and ground wires at both ends of the optical fiber may pose to the equipment. At the same time, the transmission optical fiber has the ability to suppress electromagnetic and radio-frequency interference, and the signal is not affected by electromagnetic and radio-frequency noise in the transmission process

system function realization

system requirements: real-time monitoring and fault alarm functions of all equipment in the marine engine room. Distributed database query and fatigue testing machine - cleaning problem storage. Using data fusion technology to realize intelligent fault diagnosis. The combination of wired network and wireless network. The wireless network realizes the large amount of information transmission of monitoring data, video images and voice

according to the functional requirements of the system, the functional realization is divided into multiple modules as shown in Figure 3. The functions of each module are as follows:

data acquisition module: responsible for signal acquisition, conversion and signal input/output, communicating with computer through local area, and finally storing in real-time database after initial processing

data query module: it dynamically provides the historical value query of important parameters according to the query items and query time

real time monitoring module: constantly obtain real-time data from the real-time database, dynamically display the operating parameters of each device, and understand the operating status of each device in real time through the monitoring interface

management function module: manage the login of authorized users. Users with advanced permissions have permissions that ordinary users do not have, such as setting alarm parameters, so as to ensure the confidentiality and security of the system

trend chart performance unit: Guohao Exhibition (Shanghai) Co., Ltd. viewing module: dynamically display the trend curve in any time according to the selected date and time period, so that the operators can see the changes of cabin parameters at a glance

fault diagnosis module: real time detect the faults of various components in the engine room, analyze and judge the cause, frequency and harm degree of the faults, and give necessary solutions

other function modules: including report generation and printing, database management, help and other information

human computer interaction subsystem

the human-computer interface design specification of the system, the main menu setting is convenient for operation, and the sub screen operation and conversion are flexible. All function selections can be directly completed through the screen software buttons. The system interface is designed by King graphics. Its characteristics are beautiful interface, strong interaction ability with users, and natural browsing experience of users. It has perfect functions, integrates the existing performance calculation formulas and methods, and accurately predicts the result data. The efficiency of information interaction, collection, analysis and processing is high, and the database can be accessed and used effectively. Reserve expansion interfaces to facilitate upgrading, integration and expansion

interface includes:

main interface form: as shown in Figure 4, all subsystems are clearly displayed on the main interface for easy access to each subsystem

engine room equipment monitoring window: it can quickly search and query the status parameters that need to be viewed, and the built-in alarm system will automatically pop up the faulty equipment and corresponding countermeasures in case of equipment failure

historical curve query form: the time length can be automatically set according to the demand, the data in the required time segment can be selected, the real-time curve or historical curve can be generated, and the corresponding report can be generated

emergency event processing form: according to the classification of ship system, collect and sort out the ship emergency accident processing database including emergency event overview, analysis and processing, so as to facilitate the search of emergency accident data of any system

machine damage accident treatment, preventive inspection, safety prevention, environmental protection, emergency treatment, in each case, they are divided according to the main equipment in the engine room

maintenance list form: according to the requirements of the company and relevant ship regulations, sort out all the maintenance contents of the engine room. As long as you run this form, you can automatically call out all the contents that should be maintained and managed, and generate a report for maintenance processing. After the corresponding maintenance management is completed, the confirmation mark can be made in the system

video monitoring form: real-time transmit the on-site situation on the ship and monitor it. Use the video server module to compress the simulated video image in real time and publish it to the network. The computer can store the image and output the alarm, and command and dispatch according to the on-site situation. It can also be transmitted to all relevant functional departments through the network at the same time

ship shore integration subsystem

the goal of ship shore integration is to establish an information exchange, monitoring and management platform of ship shore integration information wide area and ship shore integration. On this platform, the real-time sharing and interaction of ship shore information can be realized, and then the real-time monitoring of various ships (fleets) can be realized, so as to improve the scheduling, operation and decision-making ability of the management; At the same time, it can also greatly improve the safety of ship shipping and ensure the safety of port maritime traffic, and further improve the transport capacity of the port. Therefore, ship shore integration is the advanced stage of the development of ship automation technology, and it is also the development direction of ship transportation technology and logistics e-commerce technology

the ship shore integrated information platform focuses on the transmission, reception, access, transformation and feedback of the relevant information of the ship operation process, and constantly adjusts and optimizes the relevant process. It is a large-scale, multi-level, multi variable, complex structure and comprehensive function system. Through the maritime satellite communication system, the single ship system takes the single ship as a node to enter the ship shore integrated communication and realize the ship shore integrated management. The overall management architecture of the ship shore integrated information platform adopts the form of hierarchical architecture and centralized management, that is, to realize the hierarchical ship architecture of cross regional and multi domain. Administrators can centrally and uniformly manage the ships belonging to local branches at the headquarters, and local branches can also implement localized management of the ships they own. The architecture has good scalability and scalability, can well adapt to the expansion of ship scale or new management nodes, support distributed architecture, and realize hierarchical management. The system adopts centralized monitoring mode, and can monitor up to thousands of ship equipment and various key parameters from one monitoring platform at the same time. In terms of implementation technology, the b/s architecture based on Web technology is adopted, and the maintenance and upgrade of the system are very convenient

industrial database subsystem

in order to ensure the reliability of the system and the continuous data collection (as shown in Figure 5), the upper computer adopts the connection mode of dual computer redundancy. The host and slave are connected through tcp/ip network. Under normal circumstances, the host is in working state, the slave is in monitoring state, and the slave obtains real-time data and alarm information from the host through the network to complete the hot backup of data; Once the host is abnormal, the slave will replace the host in a very short time to fully realize the function of the host; After the host is repaired and restarted, the slave will automatically copy the historical data and real-time data lost by the host to the host, and then return to the monitoring state

the database is required to be able to store all the data of the cabin monitoring equipment for a long time, which can not only easily view the real-time data, but also call out the historical data at any time, and support various queries such as SQL query. In order to shorten the development cycle, combined with the actual project needs, the industrial database adopts the form of Asian control kinghistorian and dual computer hot standby, so it has the following characteristics

efficient data management: it has become a trend to use computers and database languages to compile database systems to manage existing data and archives, so as to replace the traditional manual and handwritten management methods. Using the database system to manage, archive and save the data can make the future query and analysis of the data simple and fast, save a lot of manpower and material resources, and improve the accuracy. The establishment of power plant monitoring and analysis system database can play a convenient and fast role in the detection and maintenance of ship equipment, especially in the emergency repair of ship equipment, which can save time and improve efficiency, so as to reduce losses and manpower waste

predict the operation trend of ships and boats: data mining technology is to find trends from data