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Design on Remote Sensing Monitoring System of Navigation Pharos in Bridge Area for Inland Waterway
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Available online at www.sciencedirect.com Procedia Computer Science00 (2018) 000–000 Procedia Computer Science00 (2018) 000–000
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Procedia Computer Science 131 (2018) 409–415
8th International Congress of Information and Communication Technology (ICICT-2018) 8th International Congress of Information and Communication Technology (ICICT-2018)
Design on Remote Sensing Monitoring System of Navigation Design on Remote Sensing Monitoring System of Navigation Pharos in Bridge Area for Inland Waterway Pharos in Bridge Area for Inland Waterway Zhang-li YANG一 Zhang-li YANG一
School of Architecture and Materials, Chongqing College of Electronic Engineering, Chongqing P.O. Box 401331, China School of Architecture and Materials, Chongqing College of Electronic Engineering, Chongqing P.O. Box 401331, China
Abstract Abstract Navigation pharos is the symbol of safe navigation of ships. In order to overcome the puzzles of being poor in management real Navigation pharos is the safe navigation ships. In order toofovercome the puzzles of being poor in management real time and being more in symbol securityofhidden dangers inofthe maintenance manual tour-inspection of navigation channel pharos maintenance, themore paperinexplored kind ofdangers remoteinsensing monitoringofsystem of tour-inspection navigation pharos in bridge area for inland time and being security ahidden the maintenance manual of navigation channel pharos maintenance, a kind of challenges remote sensing monitoring system of navigation pharos in bridge area bridge for inland waterway. In the this paper paper,explored it pointed out the of navigation management in the current inland waterway area, waterway.the In system this paper, it pointedand out workflow, the challenges of navigation management in thepharos current inland waterway bridge video area, explored architecture designed the system of navigation information management, monitoring its corresponding otherworkflow, modules, designed developedthe andsystem implemented a remote sensing monitoring and management explored theand system architecture and of navigation pharos information management, video monitoring and its corresponding other modules, developed and implemented a remote sensing management system of navigation channel in bridge area based on B/S pattern. Good operation results aftermonitoring the systemand runs verify the system of and navigation channel bridge area based on B/S pattern.system. Good operation results after the system runs verify the feasibility availability of theindesigned remote sensing monitoring © 2018 The Authors. Published Elsevierremote B.V. sensing monitoring system. feasibility and availability of theby designed © 2018 The Authors. Published by Elsevier Ltd. © 2018 The Authors. Published by B.V. Peer-review under responsibility of Elsevier organizing committee of the 8th International Congress of Information and Communication This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of organizing committee of thecommittee 8th International Congress of Information Communication Technology (ICICT-2018). Selection and peer-review under responsibility of the scientific of the 8th International Congressand of Information and Technology (ICICT-2018). Communication Technology. Keywords:Inland waterway pharos;bridge area; B/S,;telemetry remote control management Keywords:Inland waterway pharos;bridge area; B/S,;telemetry remote control management
1. Introduction 1. Introduction With the rapid development of the economy along the rivers, China's river-cross bridge is unceasingly increasing, the of rapid development of the economy along the rivers, river-cross bridge is theWith number large ships and high-speed ships are steadily on theChina's increase, the probability of unceasingly ship-bridge increasing, collision is the number of largeand ships high-speed shipstoarenavigation steadily on increase, the the probability of ship-bridge is largely increased, theand function of aiding inthe which it uses navigational AIDS to collision guide ship largelythrough increased, thechannel functionhasofbecome aiding to navigation which it [1-3]. uses the navigational AIDS toanomalies guide ship safety the and bridge more and moreinimportant When there are serious in safety through the such bridgeaschannel has become more [1-3]. are seriouswork anomalies in navigation pharos drift, damage and loss ofand lightmore etc.,important if the pharos of When channelthere maintenance lags, the such as drift, damage loss of then light itetc., the pharos of channel maintenance lags, navigation pharos is in abnormal workingand condition, willifseriously affect the navigation safety work of ships in the navigation pharos is in abnormal working condition, then it will seriously affect the navigation safety of ships in the * Corresponding author. Tel.: +0-236-592-6200; fax: +0-236-592-6200. E-mail address:author. [email protected] * Corresponding Tel.: +0-236-592-6200; fax: +0-236-592-6200. © 2018 Theaddress: [email protected] Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license E-mail https://creativecommons.org/licenses/by-nc-nd/4.0/) © 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license Selection and peer-review under responsibility of the scientific committee of the 8th International Congress of Information and Communication https://creativecommons.org/licenses/by-nc-nd/4.0/) Technology Selection and peer-review under responsibility of the scientific committee of the 8th International Congress of Information and Communication Technology 1877-0509 © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of the scientific committee of the 8th International Congress of Information and Communication Technology 10.1016/j.procs.2018.04.223
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waters, and therefore, there are a lot of challenges [4,5]. Specially the water level in the upper reaches of the Yangtze river is more and more varied each year, and the coastline changes more violently to make it more difficult to maintain the navigation standard, and higher requirements are put forward for the modernization management of navigation. In order to adapt to the development of shipping, it is urgent to realize the real-time automation of the collecting parameters of the navigation system, the fast speed of the maintenance response of the navigation pharos and the intensification of navigation information management, so it has always been a matter of high concern to the waterway maritime sector for the construction of remote sensing monitoring system of navigation pharos in bridge area of inland waterway [6,7]. 2. System Architecture and Workflow The architecture and workflow depend on system functionality and non-functional requirement of the system. The former includes that it has to own the basic data of the navigation pharos completely, such as navigation pharos position, nature, history and current situation, maintenance, etc., real-time dynamic updating of basic data, timely and accurate understanding of the operating conditions of the navigation pharos, and the maintenance and management of the navigation pharos are reasonably carried out based on the basic data and real-time dynamic information. Finally, it can monitor the situation of the bridge area in real time and realize the storage and playback of surveillance video, when abnormal situation arises, it can find out the cause of the problem in time, and define the delineation of responsibility and provide the analysis data for future maintenance methods. The later includes that the system user interface is friendly, easy to use and humanized in operating mode, owns the scalability, adaptability, stability and high safety, and it can better satisfy the business expansion demand of the navigation waterway management in the future. 2.1 System Architecture B/S and C/S are respectively two system architectures for software systems, with the development of Internet technology, the former is now replacing the latter. Under the B/S structure, it is very convenient to the user, its operating interface is mainly realized by means of the browser, and there is few transaction logic is implemented at the browser. From the analysis of system structure hierarchy, it is a frame structure contained three hierarchies as shown in figure 1.
Fig. 1. B/S Structure of Three Layers
The advantage of the structure of B/S is that as long as there is a networked computer it can be managed, there is no need to install any client software, and the extension of the system is easy, as long as it assigns a user name and password to the browser. Known from the analysis of demand, only it adopts B/S structure development system to achieve the purpose of information sharing, remote monitoring and management, and making any terminal can be connected to the internal LAN shared call monitoring. 2.2 System Workflow The workflow of the system is shown in figure 2. When a user logs in, the system automatically identify the identity of the user, for different administrative authority, the administrator shall have the right to manage the information such as user accounts, basic information, user permissions, account cancellation. It can add, modify and delete the video files, and for warning information about navigation pharos, it can make the query, track, and at the same time, it can be sorted by time or location. Channel staff after login system can check the system parameter setting corresponding whether meet the requirements, if it meets then it can enter the bridge monitoring module or navigation pharos monitoring module,
Zhang-li YANG / Procedia Computer Science 131 (2018) 409–415 Author name / Procedia Computer Science00 (2018) 000–000
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conduct the monitoring for related situation of the bridge area field, and also look over the alarm situation of navigation pharos light. When the navigation pharos alarm is called, the alarm needs to be handled. When the setting does not meet the requirements, it can leave a message or note hint for the manager, and ask to modify the related setting. Administrators can judge the rationality of users' suggestions, when it really needs to modify the setting, it can send out the notification of assent for the user and modify the setting. when it does not need to modify the setting, it can decline the user's advice and notify the other person.
Fig. 2. System Workflow
3. Design on Functional Module and Management Platform 3.1 Functional Modules In combination with the demand for the maintenance management of the bridge area waterway, the monitoring and management system of navigation pharos of bridge area include device information management module, personnel information management module, trouble call information management module, log information management module, etc., as shown in figure 3.
Fig. 3. System Functional Block Diagram
① Video monitoring and management subsystem The subsystem is one of the core components of the system, to monitor and manage users through video can monitor the waterway status of bridge area in real time, it can also replay or download the previously monitored video, through this module, administrators can also add, delete, and modify monitoring devices in the bridge area. ② Navigation information management subsystem It is mainly used to monitor the operating condition of the waterway pharos, Including the dynamic information of the waterway pharos such as real-time image, real time voltage, real-time current, real-time positioning
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information, and waterway pharos light quality status, and the static information such as the datum point position of the waterway pharos, the SIM card number, the name of the navigation, the position of the waterway pharos, the telephone number, the telephone number and the installation date etc., through this module, the administrator can also add, delete, modify the navigation devices. ③ Personnel information management module This module is used to manage all the users who use the system, Including the user basic information, user permissions and user functions. There are two main categories, general employee information management and administrator information management. At the beginning of the system design, an administrator account “admin” was default，through this account, it can create other login accounts, and it can set different permissions, which can only be used by administrator privileges. ④ Repairs information management module When the user finds out that the device is running in an abnormal state, the module can be used to report the repairs to the corresponding management department. After the corresponding department receives the request for the repair, the repair must be completed within a certain period of time. Through this module, the administrator can query all the report records and their completion status. ⑤ Log information management module In order to ensure the safety of the system, the system will record all operation information, including operator, operation time, and control content, etc., the administrator can view all the log records by time. Because the system records all the operations, the administrator can delete the record that has no value. In addition, the system can automatically clean up the log before a certain time. 3.2 Navigation Information Processing Platforms Data collected from telemetry remote control terminal is transmitted to the monitoring center, the management background is handled by the monitoring center, which is one of the core modules of the system. It includes six modules ， data communication, data processing, client information receiving and dispatching, client information processing, data center processing and function module. Here, just take the data communication module as an example to discuss its processing flow, as shown in figure 4. It is specifically responsible for communicating with the telemetry remote control terminal of the waterway, accepts the data collected by the terminal sensor, and sends specific messages to the system, and it is the bridge between the monitoring center system platform and the field device. The data sent by TCP/IP is processed by the terminal, and then, it is sent to the module of data processing, and finally, the processed specific messages through the module is sent again to the terminal. The processing flow is shown as in figure 4. Among them, the monitoring of video in bridge area is an important part of the construction of "visual waterway", which is a supplement to digital waterway. Under the condition of various climates and light conditions, it can record the waterway situation in real time, and timely find the situation of navigation pharos, ship navigation and illegal occupation of waterways, etc., to provide effective real video and image data for emergencies, it plays a very important role in channel maintenance, waterway administration and protection of Yangtze river bridge. The video monitoring subsystem structure is shown in figure 5. The functions of each part are as follows. The video acquisition terminal mainly realizes the real-time compression, transmission, front-end control and network support of video images collected by the camera. The database is mainly used to store video information and provide remote computer access. Remote management configuration is mainly used for remote configuration video acquisition terminal, the control system for the camera to collect picture, at the same time can also be to manage the information in the database, control access to remote computers. After channel management login system through the computer, the remote computer can be directly connected to video acquisition terminal on-site monitoring, also can connect to the database, check the previous monitoring information. From the diagram of video monitoring subsystem, the system is divided into three parts, client, Web server and video server. The client is the remote computer, and the user connects to the Web server through the browser, and obtains the corresponding system function according to the user's permission.
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Fig. 4. Flow of Data Communication Processing
Fig. 5. Block Diagram of Video Surveillance
4. Implementation and Its Effect Analysis 4.1 Main Interface of System Monitoring and management are implemented through the main interface of the system, and the main window consists of four parts, including the login status area, functional area, subfunctional area and main information area. The login state area is used to display user login status, as well as user identity and department. The functional area is used to show the type of operation that the current user can do. The subfunctional area is used to display the subfunctions contained in the user's corresponding operation, such as if the user clicks on the "navigation pharos information management" button in the functional area, the subfunction module will display "Navigational information monitoring", "Add new beacon" and "Electronic map display". The main information area displays various information about the operation object, and the various function buttons that are included will complete the various operations required by the user. In the subsystem of navigation pharos information management, after selecting the "navigation information management" in the functional area, the three function buttons of "Navigational information monitoring", "Adding new beacon" and "Electronic map display" will be displayed in the sub-functional area. Clicking monitoring AIDS to navigation pharos information, the information in the main area will be in the form of a list shows all the basic information of the navigation pharos light, including the current position of the AIDS to navigation information, voltage information, work status information, battery status information, departments and so on. For each navigation pharos, the users can delete and view the detailed information operations. Clicking "delete" to delete all information of the navigation pharos, after clicking the "details" button, the ActiveX window will pop up, showing all the dynamic information including the navigation pharos, according to the facts, such as real time photograph, the basic information (navigation pharos, SIM card number, navigation pharos category, AIDS to navigation datum point location, date of installation, etc.), AIDS to navigation dynamic information (voltage and current information, communication mode, location information and navigation pharos working parameters, etc.). After clicking the "add new navigation pharos" button in the sub-function area, and the main information area will display the relevant page, fill in the relevant information, and click the confirmation button, and the new navigation pharos will be added to the database. For example, in the monitoring process, the figure 6 shows the electronic chart of navigation aids, the figure 7 shows the demonstration of navigation aids alarm, the figure 8 shows the real-time monitoring, and the figure 9 shows the playback and download of monitoring video.
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Fig. 6. Electronic Chart of Navigation Aids
Fig. 8. Real-time monitoring
Fig. 7. Demonstration of Navigation Aids Alarm
Fig. 9. Playback and download of monitoring video
4.2 System Operation Effect Analysis The developed system has been used in the bridge area of a highway bridge in the Yangtze river. The good results of the three years of operation have shown that compared with the C/S mode, the B/S mode is more convenient to integrate the navigation information management subsystem and the bridge waterway video monitoring and management system, to introduce the navigation electronic map, and to make the user interface be more user-friendly. The rigorous and complex access control can realize the consistency and security of access and management of monitoring management system. Strong data processing power can handle the real-time information of a large number of devices to display the interface of each module in an intuitive manner, and the information of automatic navigation monitoring device and navigation pharos can be automatically exported to different file formats. Strong comprehensive information capability is conducive to the mutual penetration of device, personnel, repair and log information management data so as to promote scientific decision-making, and therefore, it can ensure that the system management of waterway monitoring, navigation control and personnel information management is always in the optimized running status from beginning to end. 5. Conclusions With the rapid development of the economy along the Yangtze river, the river has become the main way of cargo transportation, frequent passing ships often lead to a collision bridges, therefore how to ensure the ship safety by waterway pharos gets more and more important role in navigation. In this paper, taken a bridge area navigation in highway bridge waterway pharos monitoring as the research object, the developed monitoring management system is friendly in interface, simple in operation, easy to integration with other systems, it improves the management efficiency of AIDS to navigation, and it also provides a safe and reliable mean of information management. Acknowledgement This work is partly supported by the Project Grant No.KJ1729407 of Chongqing Municipal Education Commission of China.
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References 1. LIN Qiang, XU Feng. Application of digital waterway’s comprehensive monitoring system in maintenance and management of waterway. Port & Waterway Engineering, 2011(3): 126-130. 2. Guan-Jun Tian. Research on Application of 3D Simulation Technology in the Management of Waterway Pharos. China Water Transport, 2016, 16(6): 71-72. 3. Xu Jian, Yu Lin. Application of of Waterway Pharos Telemetry Remote Control System in Waterway Maintenance and Management [J]. Water Transportation Management, 2011，33（9）：34-35. 4. Lu Yongxiang. Study on the design of maintenance ship monitoring system [J]. CHINA SHIPREPAIR, 2012, 25(5): 32-35. 5. He Feng. Application Analysis of Telemetry Remote Control System in Waterway Maintenance Management. Science and Technology& Innovation, 2017( 10 ): 100-101. 6. Hu Huateng. Design and Implementation of Electronic Waterway Data Generation System. Jingzhou: Yangtze University，2016. 7. Jian-wei Wang. Development on Inland Waterway Management System Based on GIS. Nanjing: Nanjing University of Science and Technology, 2007.
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Procedia Computer Science 131 (2018) 409–415
8th International Congress of Information and Communication Technology (ICICT-2018) 8th International Congress of Information and Communication Technology (ICICT-2018)
Design on Remote Sensing Monitoring System of Navigation Design on Remote Sensing Monitoring System of Navigation Pharos in Bridge Area for Inland Waterway Pharos in Bridge Area for Inland Waterway Zhang-li YANG一 Zhang-li YANG一
School of Architecture and Materials, Chongqing College of Electronic Engineering, Chongqing P.O. Box 401331, China School of Architecture and Materials, Chongqing College of Electronic Engineering, Chongqing P.O. Box 401331, China
Abstract Abstract Navigation pharos is the symbol of safe navigation of ships. In order to overcome the puzzles of being poor in management real Navigation pharos is the safe navigation ships. In order toofovercome the puzzles of being poor in management real time and being more in symbol securityofhidden dangers inofthe maintenance manual tour-inspection of navigation channel pharos maintenance, themore paperinexplored kind ofdangers remoteinsensing monitoringofsystem of tour-inspection navigation pharos in bridge area for inland time and being security ahidden the maintenance manual of navigation channel pharos maintenance, a kind of challenges remote sensing monitoring system of navigation pharos in bridge area bridge for inland waterway. In the this paper paper,explored it pointed out the of navigation management in the current inland waterway area, waterway.the In system this paper, it pointedand out workflow, the challenges of navigation management in thepharos current inland waterway bridge video area, explored architecture designed the system of navigation information management, monitoring its corresponding otherworkflow, modules, designed developedthe andsystem implemented a remote sensing monitoring and management explored theand system architecture and of navigation pharos information management, video monitoring and its corresponding other modules, developed and implemented a remote sensing management system of navigation channel in bridge area based on B/S pattern. Good operation results aftermonitoring the systemand runs verify the system of and navigation channel bridge area based on B/S pattern.system. Good operation results after the system runs verify the feasibility availability of theindesigned remote sensing monitoring © 2018 The Authors. Published Elsevierremote B.V. sensing monitoring system. feasibility and availability of theby designed © 2018 The Authors. Published by Elsevier Ltd. © 2018 The Authors. Published by B.V. Peer-review under responsibility of Elsevier organizing committee of the 8th International Congress of Information and Communication This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of organizing committee of thecommittee 8th International Congress of Information Communication Technology (ICICT-2018). Selection and peer-review under responsibility of the scientific of the 8th International Congressand of Information and Technology (ICICT-2018). Communication Technology. Keywords:Inland waterway pharos;bridge area; B/S,;telemetry remote control management Keywords:Inland waterway pharos;bridge area; B/S,;telemetry remote control management
1. Introduction 1. Introduction With the rapid development of the economy along the rivers, China's river-cross bridge is unceasingly increasing, the of rapid development of the economy along the rivers, river-cross bridge is theWith number large ships and high-speed ships are steadily on theChina's increase, the probability of unceasingly ship-bridge increasing, collision is the number of largeand ships high-speed shipstoarenavigation steadily on increase, the the probability of ship-bridge is largely increased, theand function of aiding inthe which it uses navigational AIDS to collision guide ship largelythrough increased, thechannel functionhasofbecome aiding to navigation which it [1-3]. uses the navigational AIDS toanomalies guide ship safety the and bridge more and moreinimportant When there are serious in safety through the such bridgeaschannel has become more [1-3]. are seriouswork anomalies in navigation pharos drift, damage and loss ofand lightmore etc.,important if the pharos of When channelthere maintenance lags, the such as drift, damage loss of then light itetc., the pharos of channel maintenance lags, navigation pharos is in abnormal workingand condition, willifseriously affect the navigation safety work of ships in the navigation pharos is in abnormal working condition, then it will seriously affect the navigation safety of ships in the * Corresponding author. Tel.: +0-236-592-6200; fax: +0-236-592-6200. E-mail address:author. [email protected] * Corresponding Tel.: +0-236-592-6200; fax: +0-236-592-6200. © 2018 Theaddress: [email protected] Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license E-mail https://creativecommons.org/licenses/by-nc-nd/4.0/) © 2018 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license Selection and peer-review under responsibility of the scientific committee of the 8th International Congress of Information and Communication https://creativecommons.org/licenses/by-nc-nd/4.0/) Technology Selection and peer-review under responsibility of the scientific committee of the 8th International Congress of Information and Communication Technology 1877-0509 © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/) Selection and peer-review under responsibility of the scientific committee of the 8th International Congress of Information and Communication Technology 10.1016/j.procs.2018.04.223
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waters, and therefore, there are a lot of challenges [4,5]. Specially the water level in the upper reaches of the Yangtze river is more and more varied each year, and the coastline changes more violently to make it more difficult to maintain the navigation standard, and higher requirements are put forward for the modernization management of navigation. In order to adapt to the development of shipping, it is urgent to realize the real-time automation of the collecting parameters of the navigation system, the fast speed of the maintenance response of the navigation pharos and the intensification of navigation information management, so it has always been a matter of high concern to the waterway maritime sector for the construction of remote sensing monitoring system of navigation pharos in bridge area of inland waterway [6,7]. 2. System Architecture and Workflow The architecture and workflow depend on system functionality and non-functional requirement of the system. The former includes that it has to own the basic data of the navigation pharos completely, such as navigation pharos position, nature, history and current situation, maintenance, etc., real-time dynamic updating of basic data, timely and accurate understanding of the operating conditions of the navigation pharos, and the maintenance and management of the navigation pharos are reasonably carried out based on the basic data and real-time dynamic information. Finally, it can monitor the situation of the bridge area in real time and realize the storage and playback of surveillance video, when abnormal situation arises, it can find out the cause of the problem in time, and define the delineation of responsibility and provide the analysis data for future maintenance methods. The later includes that the system user interface is friendly, easy to use and humanized in operating mode, owns the scalability, adaptability, stability and high safety, and it can better satisfy the business expansion demand of the navigation waterway management in the future. 2.1 System Architecture B/S and C/S are respectively two system architectures for software systems, with the development of Internet technology, the former is now replacing the latter. Under the B/S structure, it is very convenient to the user, its operating interface is mainly realized by means of the browser, and there is few transaction logic is implemented at the browser. From the analysis of system structure hierarchy, it is a frame structure contained three hierarchies as shown in figure 1.
Fig. 1. B/S Structure of Three Layers
The advantage of the structure of B/S is that as long as there is a networked computer it can be managed, there is no need to install any client software, and the extension of the system is easy, as long as it assigns a user name and password to the browser. Known from the analysis of demand, only it adopts B/S structure development system to achieve the purpose of information sharing, remote monitoring and management, and making any terminal can be connected to the internal LAN shared call monitoring. 2.2 System Workflow The workflow of the system is shown in figure 2. When a user logs in, the system automatically identify the identity of the user, for different administrative authority, the administrator shall have the right to manage the information such as user accounts, basic information, user permissions, account cancellation. It can add, modify and delete the video files, and for warning information about navigation pharos, it can make the query, track, and at the same time, it can be sorted by time or location. Channel staff after login system can check the system parameter setting corresponding whether meet the requirements, if it meets then it can enter the bridge monitoring module or navigation pharos monitoring module,
Zhang-li YANG / Procedia Computer Science 131 (2018) 409–415 Author name / Procedia Computer Science00 (2018) 000–000
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conduct the monitoring for related situation of the bridge area field, and also look over the alarm situation of navigation pharos light. When the navigation pharos alarm is called, the alarm needs to be handled. When the setting does not meet the requirements, it can leave a message or note hint for the manager, and ask to modify the related setting. Administrators can judge the rationality of users' suggestions, when it really needs to modify the setting, it can send out the notification of assent for the user and modify the setting. when it does not need to modify the setting, it can decline the user's advice and notify the other person.
Fig. 2. System Workflow
3. Design on Functional Module and Management Platform 3.1 Functional Modules In combination with the demand for the maintenance management of the bridge area waterway, the monitoring and management system of navigation pharos of bridge area include device information management module, personnel information management module, trouble call information management module, log information management module, etc., as shown in figure 3.
Fig. 3. System Functional Block Diagram
① Video monitoring and management subsystem The subsystem is one of the core components of the system, to monitor and manage users through video can monitor the waterway status of bridge area in real time, it can also replay or download the previously monitored video, through this module, administrators can also add, delete, and modify monitoring devices in the bridge area. ② Navigation information management subsystem It is mainly used to monitor the operating condition of the waterway pharos, Including the dynamic information of the waterway pharos such as real-time image, real time voltage, real-time current, real-time positioning
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information, and waterway pharos light quality status, and the static information such as the datum point position of the waterway pharos, the SIM card number, the name of the navigation, the position of the waterway pharos, the telephone number, the telephone number and the installation date etc., through this module, the administrator can also add, delete, modify the navigation devices. ③ Personnel information management module This module is used to manage all the users who use the system, Including the user basic information, user permissions and user functions. There are two main categories, general employee information management and administrator information management. At the beginning of the system design, an administrator account “admin” was default，through this account, it can create other login accounts, and it can set different permissions, which can only be used by administrator privileges. ④ Repairs information management module When the user finds out that the device is running in an abnormal state, the module can be used to report the repairs to the corresponding management department. After the corresponding department receives the request for the repair, the repair must be completed within a certain period of time. Through this module, the administrator can query all the report records and their completion status. ⑤ Log information management module In order to ensure the safety of the system, the system will record all operation information, including operator, operation time, and control content, etc., the administrator can view all the log records by time. Because the system records all the operations, the administrator can delete the record that has no value. In addition, the system can automatically clean up the log before a certain time. 3.2 Navigation Information Processing Platforms Data collected from telemetry remote control terminal is transmitted to the monitoring center, the management background is handled by the monitoring center, which is one of the core modules of the system. It includes six modules ， data communication, data processing, client information receiving and dispatching, client information processing, data center processing and function module. Here, just take the data communication module as an example to discuss its processing flow, as shown in figure 4. It is specifically responsible for communicating with the telemetry remote control terminal of the waterway, accepts the data collected by the terminal sensor, and sends specific messages to the system, and it is the bridge between the monitoring center system platform and the field device. The data sent by TCP/IP is processed by the terminal, and then, it is sent to the module of data processing, and finally, the processed specific messages through the module is sent again to the terminal. The processing flow is shown as in figure 4. Among them, the monitoring of video in bridge area is an important part of the construction of "visual waterway", which is a supplement to digital waterway. Under the condition of various climates and light conditions, it can record the waterway situation in real time, and timely find the situation of navigation pharos, ship navigation and illegal occupation of waterways, etc., to provide effective real video and image data for emergencies, it plays a very important role in channel maintenance, waterway administration and protection of Yangtze river bridge. The video monitoring subsystem structure is shown in figure 5. The functions of each part are as follows. The video acquisition terminal mainly realizes the real-time compression, transmission, front-end control and network support of video images collected by the camera. The database is mainly used to store video information and provide remote computer access. Remote management configuration is mainly used for remote configuration video acquisition terminal, the control system for the camera to collect picture, at the same time can also be to manage the information in the database, control access to remote computers. After channel management login system through the computer, the remote computer can be directly connected to video acquisition terminal on-site monitoring, also can connect to the database, check the previous monitoring information. From the diagram of video monitoring subsystem, the system is divided into three parts, client, Web server and video server. The client is the remote computer, and the user connects to the Web server through the browser, and obtains the corresponding system function according to the user's permission.
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Fig. 4. Flow of Data Communication Processing
Fig. 5. Block Diagram of Video Surveillance
4. Implementation and Its Effect Analysis 4.1 Main Interface of System Monitoring and management are implemented through the main interface of the system, and the main window consists of four parts, including the login status area, functional area, subfunctional area and main information area. The login state area is used to display user login status, as well as user identity and department. The functional area is used to show the type of operation that the current user can do. The subfunctional area is used to display the subfunctions contained in the user's corresponding operation, such as if the user clicks on the "navigation pharos information management" button in the functional area, the subfunction module will display "Navigational information monitoring", "Add new beacon" and "Electronic map display". The main information area displays various information about the operation object, and the various function buttons that are included will complete the various operations required by the user. In the subsystem of navigation pharos information management, after selecting the "navigation information management" in the functional area, the three function buttons of "Navigational information monitoring", "Adding new beacon" and "Electronic map display" will be displayed in the sub-functional area. Clicking monitoring AIDS to navigation pharos information, the information in the main area will be in the form of a list shows all the basic information of the navigation pharos light, including the current position of the AIDS to navigation information, voltage information, work status information, battery status information, departments and so on. For each navigation pharos, the users can delete and view the detailed information operations. Clicking "delete" to delete all information of the navigation pharos, after clicking the "details" button, the ActiveX window will pop up, showing all the dynamic information including the navigation pharos, according to the facts, such as real time photograph, the basic information (navigation pharos, SIM card number, navigation pharos category, AIDS to navigation datum point location, date of installation, etc.), AIDS to navigation dynamic information (voltage and current information, communication mode, location information and navigation pharos working parameters, etc.). After clicking the "add new navigation pharos" button in the sub-function area, and the main information area will display the relevant page, fill in the relevant information, and click the confirmation button, and the new navigation pharos will be added to the database. For example, in the monitoring process, the figure 6 shows the electronic chart of navigation aids, the figure 7 shows the demonstration of navigation aids alarm, the figure 8 shows the real-time monitoring, and the figure 9 shows the playback and download of monitoring video.
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Fig. 6. Electronic Chart of Navigation Aids
Fig. 8. Real-time monitoring
Fig. 7. Demonstration of Navigation Aids Alarm
Fig. 9. Playback and download of monitoring video
4.2 System Operation Effect Analysis The developed system has been used in the bridge area of a highway bridge in the Yangtze river. The good results of the three years of operation have shown that compared with the C/S mode, the B/S mode is more convenient to integrate the navigation information management subsystem and the bridge waterway video monitoring and management system, to introduce the navigation electronic map, and to make the user interface be more user-friendly. The rigorous and complex access control can realize the consistency and security of access and management of monitoring management system. Strong data processing power can handle the real-time information of a large number of devices to display the interface of each module in an intuitive manner, and the information of automatic navigation monitoring device and navigation pharos can be automatically exported to different file formats. Strong comprehensive information capability is conducive to the mutual penetration of device, personnel, repair and log information management data so as to promote scientific decision-making, and therefore, it can ensure that the system management of waterway monitoring, navigation control and personnel information management is always in the optimized running status from beginning to end. 5. Conclusions With the rapid development of the economy along the Yangtze river, the river has become the main way of cargo transportation, frequent passing ships often lead to a collision bridges, therefore how to ensure the ship safety by waterway pharos gets more and more important role in navigation. In this paper, taken a bridge area navigation in highway bridge waterway pharos monitoring as the research object, the developed monitoring management system is friendly in interface, simple in operation, easy to integration with other systems, it improves the management efficiency of AIDS to navigation, and it also provides a safe and reliable mean of information management. Acknowledgement This work is partly supported by the Project Grant No.KJ1729407 of Chongqing Municipal Education Commission of China.
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